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File No. 960-140 - My Libretto pages

1. 1 13 Table 1 5 Power supply board output 1 15 Table 1 6 Battery specications oio ri tte be 1 16 Table 1 7 Time required for quick 1 17 Table 1 8 RTC battery charging data preservation 44 00021 1 17 INU JOU I U 1 1 Features The computer uses Toshiba s advanced Large Scale Integration LS and Complementary Metal Oxide Semiconductor CMOS technology extensively to provide compact size minimum weight low power usage and high reliability This computer incorporates the following features and benefits Microprocessor The computer is equipped with an Intel Pentium processor with MMX Technology that operates at 166MHz and 1 8 2 5 volts Memory The computer comes with 32MB of Extend Data Out EDO DRAM 9 HDD The computer has a 2 5 inch HDD with a capacity of 2 1GB HDD 3 2GB HDD Display The computer has a 7 1 inch color Thin Film Transistor TFT Liquid Crystal Display LCD that enables display up to 256K colors at a resolution 800 x 480 pixels A video controller and 2MB of VRAM enable an external monitor to display 16M colors at a resolution of 800 x 600 pixels or 64K colors at a resolution of 1024 x 768 pixels Keyboard An easy to use 80 82 key keyboard provides a numeric keypad overlay for fast numeric data entry or for cursor and pag
2. C 8 PC card slot connector pin assignments 150 C 9 Headphone connector pin assignments 5 pin esses C 11 Internal Microphone connector pin assignments 2 pin C 11 External Microphone connector pin assignments 5 pin C 12 App v File No 960 140 Table 11 AC adapter connector pin assignments 23 C 12 Table C 12 Main Battery connector pin assignments 10 pin C 12 Table D 1 Scam codes aes D 1 Table D 2 Scan codes with left Shift key a ies ore ote tira un D 5 Table D 3 Scan codes in Numlock D 6 Table D 4 Scan codes with En key ote He adds D 6 Table D 5 Scan codes IN overlay modes eo e RR HR een D 7 Table D 6 SCA codes with Ctrl Re y so va Men D 7 Table D 7 sean codes with Alt Key D 8 Table H 1 odorata D MAS D EM tud Cada RE Er H 1 App vi File No 960 140 Appendix A Handling the LCD Module Precautions for handling the LCD module The LCD module can be easily damaged during assembly or disassembly Therefore please observe the following precautions when handling it 1 When installing the LCD module in its cover be sure to seat it so that it is proper
3. 1 3s 13 VCC DET 5 sexum o 16 mnes soos o rusos a o n o 2 5 moss o A moms 5 muse o 27 o o 3 o s mteboso a omeo o 37 VCC VCC 39 GND 40 GND 41 GND 4 GND 43 GND GND 45 GND 46 47 GND 48 GND 49 GND 50 GND ss s 5 o so exe 7 mus 5 mum 5 o m C 6 File No 960 140 4 PJ300 Battery Connector 3 pin Table C 4 RTC Battery connector pin assignments 3 pin _ 2 C 5 PJ301 HDD Connector 44 pin Table C 5 HDD connector pin assignments 44 pin 19 1 m no a mcus 3 s s mm o ww 5 vox o o e 44 ae NE C 7 File No 960 140 C 6 PJ302 Keyboard Connector 24 pin Table C 6 Keyboard connector pin assignments 24 pin 5 1 ense 4 1 s ema s eam 10 w o wore 5 o se 7 o 18 e o eor s mor
4. 3 58 Chapter 4 Replacement Procedures 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 4 11 4 12 Shanda 4 1 HDD ee er PET 4 8 Optional Memory Module eae sense 4 10 Key Eee 4 12 Display ASSembly Hier 4 13 4 17 System Board Heat Sink and PC Card 5 10 4 18 Display Mask ose ted rad acude ee ene e M LE 4 20 FL Inverter Board se a M t aper 4 22 ECD Modulen riie enr e ie 4 24 Speaker Power Switch Board and AccuPoint 4 27 LCD Flexible Cable and ea 4 30 vii File No 960 140 413 Adapter Board trice eet e bri xii 4 35 Appendices Appendix A Handling the LCD Module eee eee eret 1 Appendix B Board iie le ata see pen e d tn e ss B 1 Appendix C PmJASSIEIImebls eoe epe rir e RD E deside C 1 Appendix D Keyboard Scan Character Codes D 1 Appendix E Key Layouts E 1 Appendix F Witing Diasrams nei F 1 Appendix G BIOS Rewrite Procedures po pe ER G 1 Appendix H ee Rai H 1 viii File No 960 140 Chapter 1 Hardware Overview File No 960 140 File No 960 140 Chapter 1 Content
5. WN AAW N gt 2 Select items Enter Specify Esc Exit Refer to sections 3 4 through 3 16 for detailed descriptions of each Diagnostic Test 1 through 12 Function 88 sets the floppy disk drive and hard disk drive error retry count Function 99 exits the submenus of the Diagnostic Test and returns to the Diagnostic Menu 3 4 File No 960 140 4 Select the option you want to execute and press Enter The following message appears SYSTEM TEST XXXXXXX B TEST XX WRITE DATA XX ADDRESS XXXXXX SU B TEST MENU SU PASS COUNT XXXXX 01 ROM checksum 92 05 Thermister 06 Quick charge e DMI read DMI write e AGNOSTIC TEST VX XX Break test end L C key stop ERROR COUN T XXXXX READ DATA XX 99 Exit to DIAGNOSTIC TEST M STATUS XXX check ENU N gt s Select items Enter Specify Esc Exit NOTE The menu displayed by your computer may be slightly different from the one shown above 5 Select the desired subtest number from the subtest menu and press Enter The following message will appear H EST LOOP RROR STOP YES YES Use the arrow keys to move the cursor to the desired option and pressEnter Selecting YES for Ti EST LOOP
6. ser soanar wo sm 1 ses scans vo sm scsenmo o acean vo sw scam ser sowie i ss 1 scwomam o we sw scono vo ccosom o 3e 8 PJ401 Headphone Connector 5 pin Table C 8 Headphone connector pin assignments 5 pin snaimame 10 Pin No vo 5 few 2 ew Lo s mw se 1 1 9 PJ470 Internal Microphone Connector 2 pin Table C 9 Internal Microphone connector pin assignments 2 pin Crise Sonainame vO Sonainame vo jw 2 m 11 File No 960 140 C 10 PJ471 External Microphone Connector 5 pin Table C 10 External Microphone connector pin assignments 5 pin C 11 PJ500 AC Adapter Connector 2 pin Table C 11 AC adapter connector pin assignments 23 pin C 12 PJ510 Main Battery Connector 10 pin Table C 12 Main Battery connector pin assignments 10 pin 1 1 12 Appendix D Keyboard Scan Character Codes Cap No 01 02 1 9 20 22 23 25 26 27 8 Table D 1 Scan codes set 1 and set 2 1 4 Code set 1 Code set 2 Keytop Make Break Make Break C z Y T s
7. 1 BUTTON2 THEN END gt gt 111111111 There are eight directions of arrow marks as shown below ENENEEN EH BERNESE When a button is pressed the display alternates as shown below Subtest 05 File No 960 140 USB Wrap around test This subtest checks USB The USB TEST Module ZD0003P01 and USB Cable ZD0003P02 must be connected to the computer If the test is completed successfully OK is displayed If nothing is displayed there may be a problem with the USB port Check the wraparound connection and repeat the test NOTE To execute this subtest the Enhanced Port Replicator must be connected to the computer 3 15 File No 960 140 3 7 Display Test To execute the Display Test select 4 from the DIAGNOSTIC TEST MENU press Enter and follow the directions on the screen The Display test contains eightsubtests that test the display in various modes Move the highlight bar to thesubtest you want to execute and press Enter Subtest 01 VRAM read write for VGA This subtest writes constant data AAh and 55h and address data to video RAM 2MB A0000h AFFFFh This data is then read from the video RAM and compared to the original data Subtest 02 Gradation for VGA This subtest displays four colors red green blue and white from left to right across the screen from black to maximum brightness
8. Check 1 Convert the DC IN icon blink pattern into the hexadecimal error code and compare it to the tables below DC power supplied through AC adapter Error code AC Adapter voltage is over 16 5V 15V 10 12h Current from the DC power supply is over the limit 3 13A 13h Current from the DC power supply is over the limit 0 5A when there is no load 14h Current sensing IC is not normal File No 960 140 Main Battery Error code 20h Battery voltage is over the limit 13 46V Main battery charge current is over the limit 2 53A 22h Mai battery discharge current is over the maximum allowed limit when there is no load 0 5A 23h Main battery charge current is over limit 1 80A wherthere 24h Current sensing IC is not normal 25h Main battery charge current is over the limit 0 5A S5V output Error code 40h S5V voltage is under the limit 4 75V output Error code 50h B5V voltage is over the limit 5 5V B5V voltage is under the limit 4 5V when power supply is turned on 52h B5V voltage is under the limit 4 5V when the computer is booting up 53h B5V dose not start up when the computer is suspended B3V output Error code _ 60h B3V voltage is over the limit 3 8V B3V voltage is under the limit 2 81V when power supply is turned on 62h B3V voltage is under the limit 2 81V when the computer is booti
9. 3 Install the removed components 4 23 File No 960 140 4 10 LCD Module 4 24 File No 960 140 When handling the LCD module do not touch or apply pressure to the surface of the LCD panel Do not touch or apply pressure to the connectors LCD panel Connectors 4 25 File No 960 140 Removing the LCD Module To remove the LCD module follow the steps below See figure 4 20 1 Remove four M2xS silver screws securing the LCD module to the top cover 2 Carefully rotate the LCD module out of the top cover from left to right being careful not to apply tension to the cables connected to the right side 3 Disconnect the display flexible cable from CN1 on the LCD module Figure 4 20 LCD module removal 4 26 File No 960 140 Installing the LCD Module To install the LCD module follow the steps below See figure 4 20 1 Connect the display flexible cable to on the LCD module 2 Carefully rotate the LCD module into the top cover from right to left 3 Secure the LCD module to the top cover withfour 2 5 silver screws 4 27 File No 960 140 4 11 Speaker Power Switch Board and AccuPoint Board Removing the Speaker Power Switch Board AccuPoint Board To remove the speaker power switch board and AccuPoint board follow the steps below See figures 4 21 and 4 23 1 Disconnect the speaker cable from the speaker connector and lift out the speaker with its rubber case Figure 4 21
10. The following message will display when the FDD format is executed FDD TYPE TRACK XXX FDD HEAD X FDD TYPE SECTOR XX Format start track head XXX X After the floppy disk is formatted the following message will appear Format complete Another format 1 Yes 2 No gt Typing 1 displays the message from step c above Typing 2 returns the test to the DIAGNOSTIC MENU 3 51 File No 960 140 3 COPY program 3 52 a b c d e When COPY is selected the following message appears FLOPPY DISK FORMAT amp COPY VX XX Type select 0 2DD 3 2HD Selecting a media drive type number will display a message similar to the one below Insert source disk into drive A Press any key when ready Remove the Diagnostics Disk from the FDD insert the source disk and press any key The following message will appear indicating the program has started FDD TYPE TRACK XXX FDD HEAD FDD TYPE SECTOR XX Copy start track head XXX X Remove the source disk from the FDD insert a formatted work disk and press any key The track head 2 XXX X message will appear and start copying to the target disk When the amount of data is too large to be copied in one operation the message from step b displays again After the floppy disk has been copied the following message will appear
11. mom e mom e w e _ en jew oemease 75 o rs pcenam 10 7 amp poseanoo vo s wo s o o s oroo aw oco o s aw File No 960 140 Table C 2 Docking Interface connector pin assignments 140 pin 3 3 Sinainame 10 Po Signal Name 10 ume w es mousoris20 vo se _ sr vo s oeoo wo ew we ovseno o o 102 o o ww oeneenaoo o 1 o 1 108 o ooo 1 wo osamo m mese 1 we ovo s mw 1 o s momo o we wr o we 1 ew 1 sm suae i w sm sucre 1 124 sono o se o ser summo o ws 5 ev ro 5 File No 960 140 PJ250 FL Inverter I F Connector 60 pin Table C 3 FL Inverter I F connector pin assignments 60 pin memswa 2 cwcomwseo o _4 pcomuoo 17 77 sonas VCC
12. 3 Bad Track FORMAT This option formats a specified cylinder and track as a bad track If a bad track is detected use this option to label it as a bad track 4 Bad Track CHECK This option searches the hard disk for bad tracks by reading data to all the tracks on the hard disk A list of bad tracks displays when the program is complete If an error other than a bad track is detected the program is automatically terminated 8 41 File No 960 140 3 18 2 Operations NOTE After the HDD has been formatted execute the Toshiba MS DOS FDISK command to partition the HDD Execute the Toshiba MS DOS FORMAT command Refer to the Toshiba MS DOS manual for more information about using these commands Selecting TEST 2 and pressing Enter in the DIAGNOSTIC MENU displays the following messages Jg IAGNOSTICS HARD DISK FORMAT VX XX All track FORMAT Good track FORMAT Bad track FORMAT Bad track CHECK Go to TEST MENU Nee Select items Enter Finish Esc Exit 1 All Track FORMAT Pressing 1 selects All track FORMAT which lets you format the entire disk All track FORMAT Drive 1 HDD 2 Non Cylinder _ XXXX Head XX Sector XX lt lt lt Model name gt gt gt The following selections also appear at the bottom of the screen in succession Drive number select 1 1 2 2 gt a Select a drive number
13. FLOPPY DISK HEAD CLEANING VX XX Mount cleaning disk s on drive s Press any key when ready 2 Remove the Diagnostics Disk from the FDD then insert the cleaning disk and press Enter 3 Whenthe cleaning start message appears the FDD head cleaning has begun 4 The display automatically returns to the DIAGNOSTIC MENU when the program is completed 3 45 File No 960 140 3 20 Log Utilities 3 20 4 Function Description This function logs error information generated while a test is in progress and stores the results in RAM This function can store data on a floppy disk or output the data to a printer If the power switch is turned off the error information will be lost The error information displays in the following order 3 20 2 1 2 3 4 5 6 7 amp 9 1 0 1 3 46 Error count CNT Test name TS NAME Subtest number TS NAME Pass count PASS Error status STS FDD HDD or memory address ADDR Write data WD Read data RD HDC status HSTS Error status name ERROR STATUS NAME Operations Selecting 5 and pressing Enter in the DIAGNOSTIC MENU logs error information into RAM or onto a floppy disk The error information displays in the following format XXXXX ERRORS CNT 5 PASS STS ADDR D RD HSTS STATUS NAME 001 FDD 02 0000 103 00001 00 00 0000 FDD WRITE PROTECTED 001 FDD 01 0000 130 00001 00 00 0000 FDD TIME OUT ERROR Addres
14. 3 2 2 3 3 4 3 5 3 6 Ihe Diagnostic Testes e 3 1 Executinpthie Diagnostic Test o exeo Du 3 3 Subtest Ae qu t usd adt e 3 7 Lest see else une 3 9 Memory Teste oe cau uu 3 10 3 12 3 7 3 8 3 9 3 10 3 11 3 12 3 13 3 14 3 15 3 16 3 17 3 18 3 19 3 20 3 21 322 3 28 3 24 File No 960 140 Display Test n 3 16 Floppy Disk Test e e atentado Ra 3 20 Printer Test sea 3 22 Asyme Test Den 3 24 Hard Disk beta tee ee 3 26 Real Timer Test uten oce T gi 3 30 Ecc RU SUE Minute E e cce 3 32 Expansion Test roii aee etna 3 33 3 35 Error Code Error Status 3 36 Hard Disk Test Detail Salsa ar dre Ru 3 39 Disk Formal as pom 3 41 Head Cleaning iesite 3 46 3 47 Running Test 3 49 Floppy Disk Drive Utilities 2 nie etr a Be HE 3 51 System Configuration eode s P e e 3 56 SETUP sushi
15. Doesn t light Any condition other than those above Auto Hibernation Off will be executed soon 2 Auto Hibernation Off has already been executed File No 960 140 Table 2 2 DC IN icon DC IN icon Power supply status Lights green DC power is being supplied from the AC adapter Blinks orange Power supply malfunction 9 Doesn t light Any condition other than those above 3 When the power supply controller detects a malfunction the DC IN icon blinks and an error code is displayed To check the power supply status install a battery pack and connect an AC adapter Check 1 the DC IN icon blinks orange go to Procedure 2 Check2 Ifthe DC IN icon does not light go to Procedure 3 Check3 Ifthe battery icon does not light orange or green go to Procedure 4 CAUTION Use only AC adapter manufactured for the Libretto 100CT If you use another AC adapter the computer s power supply may malfunction or a fuse on the system board may be blown 1 7 File No 960 140 Procedure 2 Error Code Check If the power supply microprocessor detects a malfunction the DC IN icon blinks orange The blink pattern indicates an error as shown below Start Off for 2 seconds Error code 8 bit On for one second 0 On for half second Interval between data bits Off for half second The error code begins with the least significant digit Example Error code 12h Error codes are given in hexadecimal format
16. File No 960 140 3 24 2 Accessing the SETUP Program Selecting 0 from the DIAGNOSTICS MENU and pressing Enter displays the TSETUP screen The TSETUP screen is divided into two pages SYSTEM SETUP 1 2 and SYSTEM SETUP 2 2 SYSTEM SETUP 1 2 BIOS version x xx MEMORY BOOT PRIORITY Total 32768 KB BootPriorit FDDGHDD PASSWORD DISPLAY Not Registered Power On Display Auto Selected LCD Display Stretch Disabled PERIPHERAL OTHERS Power up Mode Boot CPU Cache Enabled AutoPowerOn Disabled Porting Devices Auto Selectad Parallel Port Mode ECP Hard Disk Mode Enhanced IDE Morral Alarra Mediana SYSTEM SETUP 2 2 BIOS version CONFIGURATION PCCARD Device Config All Devices Controller Mode Auto Selected LO PORTS DRIVES Serial COMIGFSHIRQ4 Built in HDD Parallel LPTI GTSHTIRQTICH3 Poroary 14 Somd Enabled DISPLAY Segment PCIBUS PCIBUS RQ11 NOTE The Panel Power On Off item and the System Auto Off item appears when the computer is in Resume mode and Hibernation mode 3 58 File No 960 140 Moving Within the SETUP Menu and Changing Values 1 Press lt and to move between the two columns Press PgDn and PgUp to move between the two pages Press and to move between items in a column 2 Press either the space bar or BkSp to change the value Accepting Changes and Exit
17. The display below appears on the screen when this subtest is executed To exit this subtest and return to the DISPLAY TEST menu press Ctrl 4 Break 3 16 File No 960 140 Subtest 03 Gradation amp mode test for VGA This subtest displays gradations for each mode Execute the test then press Enter to change the mode 800 x 480 3 12 13 NOTE Mode 52 test can test only an external monitor it cannot be used for the internal LCD The display below appears on the screen when this subtest is executed Mode 12 Pressing Enter changes the size of the displayed image Mode 13 Pressing Enter changes the size of the displayed image 3 17 File No 960 140 Mode 3 Pressing Enter again changes the size of the displayed image To exit this subtest and return to the DISPLAY TEST menu press Ctrl Break 3 18 Subtest 04 Subtest 05 File No 960 pattern display This subtest displays a full screen of patterns HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHH
18. VGA Controller MS DOS Version VX XX BIOS ROM Version V 1st ID XXH 2nd ID XXH BOOT ROM Version VX XX x KBC Version VX XX PS Micom Version VX XX EC Version VX XX x Total Memory Size XXXXXMB Converntional Memory XXXXX KB Sound System XXXXX X Printer Adapter XXXX 2 XXXX LPT3 X ASYNC Adapter 1 XXXX COM2 XXXX COM3 x X Math Co Processor X PCMCIA Slot Modem DAA XX x X Floppy Disk Drive 5 Track XXXXX Head XX Sector x X Hard Dis Drive s 1 Cylinder XXXXX Head XX Sector XX 2 Cylinder XXXXX Head XX Sector XX Selective Bay Unit Press Enter Key Date XXXX YY ZZ XX YY ZZ Press Enter to return to the DIAGNOSTIC MENU 3 56 File No 960 140 3 24 SETUP 3 24 1 Function Description This program displays the current system setup information as listed below 1 Memory a Total 2 Password 3 Peripheral a Pointing Devices b Parallel Port Mode c Hard Disk Mode 4 Boot Priority 5 Display a Power On Display CPU Cache b LCD Display Stretch 6 Others a Power up Mode b CPU Cache c Auto Power On d Alarm Volume e System Beep f Panel Power On Off 7 Configuration 8 I O Ports a Serial b Parallel c Sound 9 Display 10 PCI Bus 11 PC Card 12 Floppy Disk I O 3 57
19. a oo e m e 5 esp 3 v 99 4 NEUE se FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO 16 1 26 25 2 36 3D 3E 46 45 File No 960 140 D 1 File No 960 140 Table D 1 Scan codes set 1 and set 2 2 4 Code set 1 Code set 2 RETE Make Break Make Break 29 42 238 AB SD FO 5 Wo 7 XB REOR me SUMA 91 a wej ECTS 20 23 21 1 2B A2 A3 A4 A5 A6 A7 n o gt 7 7 NIN gt Co gt D 2 File No 960 140 Table D 1 Scan codes set 1 and set 2 3 4 Code set 1 Code set 2 Keytop Make Break Make Break I wu m Alt L ALT R Co mk I 8 Les e a s n eo m mmm mm _ _ mk _ _ PEE EMI dd EMI 9 CUN RN NN uo oun us 15 no ono
20. interrupt request level IRQ and I O port base address for each COM level is shown below COM level Interrupt level address 1 4 3F8H Serial port default COM2 3 2F8H COM3 4 3E8H COM3 5 3E8H COM3 7 3 2E8H 5 2E8H 7 2E8H Not Used Disables the port Others Others settings made automatically by plug and play operating systems 3 67 File No 960 140 3 68 b Parallel This option sets the interrupt request level IRQ and I O port base address for the parallel port When the Printer Port Type is set toStandard Bi directional the options are LPT setting Interrupt level address LPT 1 7 378H LPT2 5 278H LPT 3 7 3BCH Not Used Disables the port Others Others settings made automatically by plug and play operating systems When the Printer Port Type is set to ECP the DMA channel can also be set to 1 2 or 3 The default is 3 LPT setting Interrupt level address DMA channel LPT 1 7 378H 3 Parallel port default LPT 2 5 278H 3 LPT 3 7 3BCH 3 Not Used Disables the port Others Others settings made automatically by plug and play operating systems When you select one of the above options except for Not Used a subwindow similar to the one below appears to let you set the DMA The options for this setting are Channel 1 and Channel 3 default OPTIONS Channel 3 File No 960 140 c Sound Use this option to enable or disable the sound system
21. 3 3 5 inch External FDD The 3 5inch external FDD is a thin high performance reliable drive that supports 720KB formatted 2DD and 1 44MB formatted 2HD disks The FDD can be connected to the PC card slot The FDD is shown in Figure 1 4 The specifications for the FDD are listed in Table 1 1 Figure 1 4 3 5 FDD Table 1 1 3 5 inch FDD specifications Storage capacity KB Unformatted 2 000 1 000 Formatted 1 440 720 Number of cylinders Access time ms Track to track 3 3 Average 181 181 Head settling time 15 15 vackaenaty ay ns Data ranstrrae Kops m m INU JOU I U 1 4 2 5 inch Hard Disk Drive The removable HDD is a random access non volatile storage device It has a non removable 2 5 inch magnetic disk and mini Winchester type magnetic heads The computer supports 2 1GB HDD or 3 2GB HDD The HDD 15 shown in Figure 1 5 Specifications are listed in Table 1 2 Figure 1 5 2 5 inch HDD Table 1 2 2 5 inch HDD specifications INU JOU I U 1 5 Keyboard The 84 USA or 86 European key keyboard is mounted on the system unit The keyboard is connected to the keyboard controller on the system board through a 24 pin flat cable The keyboard is shown in Figure 1 6 See Appendix E for optional keyboard configurations Figure 1 6 Keyboard 4 INU JOU I U 1 6 TFT Col
22. 5 screw first then remove the memory module Figure 4 6 Removing the optional memory module Installing Optional Memory Module To install the optional memory module follow the steps below See figures 4 4 to 4 6 1 Connect the memory module to the connector CAUTION Do not touch the connectors of the memory module or computer Memory access trouble may arise from foreign matter adhering to the connectors 2 Fasten the memory module with one super thin head M2 5 screw 3 Seat the keyboard The keyboard has tabs on the front so install it by inserting from the front taking care not to pinch the flexible cable 4 Secure the keyboard brace 5 Install removed components File No 960 140 4 4 Keyboard Removing the Keyboard To remove the keyboard follow the steps below See figure 4 7 1 Remove two M2x3 silver screws securing the keyboard straps and slide each strap out from under its brace 2 Disconnect the flexible cable from PJ302 and remove the keyboard Figure 4 7 Removing the keyboard Installing the Keyboard To install the keyboard follow the steps below See figure 4 7 l 4 12 Slide the keyboard straps under slots in the metal plate and secure them with two M2x3 silver screws Connect the flexible cable to PJ302 Seat the keyboard The keyboard has tabs on the front so install it by inserting the front first taking care not to pinch the flexible cable Secure the keyb
23. EM D 3 File No 960 140 Table D 1 Scan codes set 1 and set 2 4 4 Cap Code set 1 Code set 2 No Keytop Make Break Make Break E qu el wn oseo efo ro Notes Scan codes differ by mode Scan codes differ by overlay function Combined with the Fn key different codes are generated The Fn key does not generate a code by itself This key corresponds to key No 42 in a 102 key model Refer to Table D 6 Scan codes with Ctrl key Refer to Table D 7 Scan codes with Alt key DEO UM REUS pa X X X X ox File No 960 140 Table D 2 Scan codes with left Shift key Key Code set 1 Code set 2 top Make Break Make Break e as Pon a Eo 51 Eb Fo aeo FO 7A Eb NOTE The table above shows scan codes with the left Shift key In combination with the right Shift key scan codes are changed as listed below With left Shift With right Shift Set 1 EO AA ____ B6 EO 2 EO 36 Set 2 EO FO 12 __EO FO 59 EO 12 EO 59 D 5 File No 960 140 Table D 3 Scan codes in Numlock mode Key Code set 1 Code set 2 No top Make Break Make Break S 84 50 Eo 0 02 EO 2A DO EO E 12 EO 72 FO 72 EO FO 12 C Di E 203 04 gt Win 2 App Table D 4 Scan codes with Fn key Code set 1 Code set 2 Make Break EO 9C EO 9D EO EO B8 EO 11 ARROW D 6 File No 960
24. Enabled Enables the sound system Default Disabled Disables the sound system When Enabled is selected a subwindow similar to the one below appears to let you set the WSS I O address SBPro I O address Synthesizer I O address WSS amp SBPro amp MPU401 IRQ Level WSS Play WSS Rec amp SBPro DMA Control I O address and MPU401 MIDI I F for the sound system SUTTND WSS Address 170 Address Synthesizer 170 Address 388H WSS SBPro MPU401 Level 1 05 WSS Play Channel 1 Was Rec SBPro Channel 0 Control 170 Address 370H MFU401 MIDI I F 330H WSS I O address Use this option to set the Windows Sound System I O address from among the following settings 530h default 540h 550h 560h SBPro I O address Use this option to set the Sound Blaster Pro I O address from among the following settings 220h default 240h Others Synthesizer address You cannot change this value 3 69 File No 960 140 WSS amp SBPro amp MPU401 IRQ level This option sets the IRQ level for the Windows Sound System Sound Blaster Pro and MPU401 The available settings are IRO5 default IRO7 IRQ9 11 18015 WSS Play DMA This option sets the DMA channel for the Windows Sound System playback The available settings are Channel 0 Channel 1 default Channel 3 WSS Rec amp SBPro DMA This o
25. F 2 Serial port wraparound connector F 1 File No 960 140 F 3 F 4 F 2 Serial Port Direct Cable 9 Pin to 9 Pin TD DTR RTS GND RD CD DSR CTS RI Figure F 3 Serial port direct cable 9 pin to 9 pin aie Q Serial Port Direct Cable 9 Pin to 25 Pin CD RD TD DTR GND RTS DSR CTS RI 20 RD DSR CTS RI CD GND TD RTS DTR RTS TD RD CTS DSR RI GND CD DTR Figure F 4 Serial port direct cable 9 pin to 25 pin File No 960 140 Appendix G BIOS Rewrite Procedures This Appendix explains how to rewrite the system BIOS program when you update the system BIOS Tools To rewrite the BIOS you need the following tool Diagnostics disk for the computer Rewriting the BIOS 1 2 Set the system to boot mode Turn off the power to the computer Remove the external cable and any optional memory or PC card Tum on the power while holding down the F12 key Keep holding down the key until the system speaker sounds a beep When the BIOS message displays insert the diagnostics disk into the FDD then press Enter to start the BIOS rewrite program When the process is completed eject the diagnostics disk and press the reset switch to restart the system File No 960 140 G 2 File No 960 140 Appendix Reliability The following table shows MTBF Mea
26. HDD The computer looks for bootable files first on the FDD and next on the HDD Default HDD gt FDD The computer looks for bootable files first on the HDD and on the FDD You can reverse the order by holding down the F10 key while the computer is booting This procedure alternates the setup setting 3 61 File No 960 140 5 Display a Power On Display This option is used to select the display when booting up Auto Selected Selects an external monitor if one is connected otherwise it selects the internal LCD Default Simultaneous Selects both the internal LCD and the external monitor for simultaneous display b LCD Display Stretch LCD Display Stretch enables or disables a larger display area of the screen Enabled Enables the LCD display stretch feature Disabled Disables the LCD display stretch feature Default 3 62 6 Others File No 960 140 Whether you need to configure the computer with these options depends primarily on the kind of software or peripherals you use a b Power up Modes Use this option to choose hibernation resume and boot mode Boot Turns on boot mode Default Resume Turns on resume mode Hibernation Turns on hibernation mode CPU Cache Use this option to enable or disable the CPU cache Enabled Enables the CPU cache Default Disabled Disables the CPU cache When enabled is selected a subwindow similar to the one below displays to let you select the cache write
27. any other error message displays perform Check 3 The following error message appears when data stored in RAM under the resume function is lost because the battery has become discharged or the system board is damaged Go to Procedure 3 WARNING RESUME FAILURE PRESS ANY KEY TO CONTINUE File No 960 140 Check 3 The IRT checks the system board When the IRT detects an error the system stops or an error message appears If one of the following error messages 1 through 17 24 or 25 displays go to Procedure 5 If error message 18 displays go to the Keyboard Troubleshooting Procedures in Section 2 7 If error message 19 20 or 21 displays go to the HDD Troubleshooting Procedures in Section 2 6 If error message 22 or 23 displays go to the FDD Troubleshooting Procedures in Section 2 5 1 Q 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 MEMORY REFRESH ERROR TIMER CH 2 OUT ERROR CMOS CHECKSUM ERROR CMOS BAD BATTERY ERROR FIRST 64KB MEMORY ERROR FIRST 64KB MEMORY PARITY ERROR VRAM ERROR SYSTEM MEMORY ERROR SYSTEM MEMORY PARITY ERROR EXTENDED MEMORY ERROR EXTENDED MEMORY PARITY ERROR DMA PAGE REGISTER ERROR DMAC 1 ERROR DMAC 2 ERROR PIC 1 ERROR PIC 42 ERROR KBC ERROR HDC ERROR HDD 0 ERROR HDD 1 ERROR NO FDD ERROR FDC ERROR TIMER INTERRUPT ERROR RTC UPDATE
28. at the same time press Pause Break If three keys are used hold down the first two and at the same time press the third User input Text that you are instructed to type in is shown in the boldface type below DISKCOPY B The display Text generated by the computer that appears on its display is presented in the typeface below Format complete System transferred File No 960 140 Table of Contents Chapter 1 Hardware Overview 11 1 2 1 3 14 1 5 1 6 1 7 1 8 Pealures ne LM LI tu 1 1 system Unit Block Dia yc gece ag hrs 1 5 1 9 2 9 Inch Hard Dil diront m 1 10 1 1 11 een benannt 1 12 Power ner 1 14 luris m E PH 1 16 Chapter 2 Troubleshooting Procedures 2 1 22 2 3 24 2 5 2 6 224 2 8 2 9 Iroubleshosung se 2 1 Troubleshootmg PIO Wear use ep 2 2 Power Supply Lroubleshouuins Br 2 6 System Board Troubleshootinig ic oni e tiae d ni teet p t dd 2 14 EDD TronblesBooltig i a en oiu evt ah de 2 25 HDD eS BOOTH IE o ie ibat pit tee ePi bea ua dte 2 28 Keyboard Troubleshooting nase RR BR 2 34 Pointing Device Troubleshooting senken el 2 36 Display Troubleshaome aan seen 2 37 Chapter 3 Tests and Diagnostics 3 1
29. be displayed The following menu will appear TOSHIBA personal computer DIAGNOSTICS version X XX c copyright TOSHIBA Corp 19XX IAGNOSTICS MENU IAGNOSTIC TEST HARD DISK FORMAT EAD CLEANING OG UTILITIES UNNING TEST DD UTILITIES YSTEM CONFIGURATION XIT TO MS DOS ETUP y X N gt Select items Enter Specify Esc Exit NOTE To exit the DIAGNOSTIC TEST MENU press the ESC key If a test program is in progress press Ctrl Break to exit the test program or press Ctrl C to stop the test program File No 960 140 To select the DIAGNOSTIC TEST option from the DIAGNOSTICS MENU set the highlight bar to 1 and press Enter The following DIAGNOSTIC TEST MENU will appear TOSHIBA personal computer DIAGNOSTICS version X XX c copyright TOSHIBA Corp 19XX DIAGNOSTIC TEST MENU 1 SYSTEM TEST EMORY TEST EYBOARD TEST SPLAY TEST OPPY DISK TEST INTER TEST S K E YNC T gt 0 9 RD DI TI DP TEST XPANSION TEST OUND TEST RROR RETRY COUNT SET HDD amp FDD IT TO DIAGNOSTICS MENU TEST TEST I zb UU D X m
30. on the computer and run the test Clean the FDD heads using the cleaning kit If the FDD still does not function properly after cleaning go to Procedure 2 If the test program cannot be executed on the computer go to Procedure 2 1 25 File No 960 140 Procedure2 Diagnostic Test Program Execution Check Insert the Diagnostics Disk in the FDD turn on the computer and run the test Refer to Chapter 3 Tests and Diagnostics for more information about the diagnostics test procedures Floppy disk drive test error codes and their status names are listed in Table 2 5 Make sure the floppy disk is formatted correctly and that the write protect tab 15 disabled If any other errors occur while executing the FDD diagnostics test go to Check 1 Table 2 5 FDD error code and status Se 80h Time out error Not ready Check 1 If the following message displays disable the write protect tab on the floppy disk If any other message appears perform Check 2 Write protected Check 2 Make sure the floppy disk is formatted correctly If it is go to Procedure 3 1 26 File No 960 140 Procedure3 Connector Check and Replacement Check The FDD cable and PC card is a single unit Install the FDD s PC card in the computer then begin with Check 1 below Check 1 sure the PC card is properly connected to the system board x FEC module Po Card Card System board Alot If the connection is loose reinstall the P
31. operation when a data compare error is detected Select yes or no Data compare error dump yes no 3 26 File No 960 140 4 This message is used to select whether or not the HDD status is displayed on the screen The HDD status is described in section 3 19 Selectyes or no Detail status display yes no 5 This message is used to select whether or not the HDD status is displayed on the screen The HDD status is described in section 3 19 Select or 2 and press Enter 6 The Hard Disk Test message will appear after you respond to the Detail Status prompt Select the number of the subtest you want to execute and press Enter The following message will appear during each subtest HARD DISK TEST XXXXXXX B TEST XX 55 COUNT XXXXX ERROR COUNT XXXXX IE DATA XX READ DATA XX DRESS XXXXXX STATUS DSUN The first three digits of the ADDRESS indicate which cylinder is being tested the fourth digit indicates the head and the last two digits indicate the sector The first digit of the STATUS number indicates the drive being tested and the last two digits indicate the error status code as explained in Table 3 2 Subtest 01 Sequential read This subtest is a sequential reading of all the tracks on the HDD starting at track 0 When all the tracks on the HDD have been read the test starts at the maximum track and reads the tracks on the HDD sequentially back to
32. option to create a DOS partition on drive C Restart the computer from the Toshiba MS DOS system disk If the problem still exists go to Procedure 3 If drive C is listed as active in the FDISK menu go to Check 4 If drive C is not listed as active return to the FDISK menu and choose the option to set the active partition for drive C Restart the computer If the problem still exists go to Check 4 Type DIR C and press Enter If the following message displays go to Procedure 3 If contents of drive C are listed on the display go to Check 5 Invalid media type reading drive C Abort Retry Fail Using the SYS command on the Toshiba MS DOS system disk install system files on the HDD If the following message appears on the display the system files have been transferred to the HDD Restart the computer If the problem still exists go to Procedure 3 System transferred File No 960 140 Procedure 3 Format Check The computer s HDD is formatted using the low level format program and the MS DOS FORMAT program To format the HDD start with Check 1 below and perform the other steps as required Check 1 Format the HDD and transfer system files using FORMAT C S U If the following message appears on the display the HDD is formatted Format complete If an error message appears on the display refer to the Toshiba MS DOS Manual for more information and perform Check 2 Check 2 Using the Diagnostic Disk format the HDD wi
33. pin 2 3 55 GND se GND sje s we soe 63 __ 64 s om wenn s wes o we Ems o m w n mew o m w 73 75 GND 77 79 91 GND e GND 101 B3V 103 107 GND 18 GND 113 __ 14 2 File No 960 140 Table C 1 Expansion Memory connector pin assignments 140 pin 3 3 pese een To GND 120 GND 129 130 B3V 139 GND 10 GND ES C 2 PJ200 Docking Interface Connector 140 pin Table C 2 Docking Interface connector pin assignments 140 pin 1 3 Signal name 10 Signal Name 10 e ___ 2 s wo wo 7 omw o s wo pese File No 960 140 4 Table C 2 Docking Interface connector assignments 140 2 3 Sunarame 10 Pinno Signal Name 10 ss rosso i ew s o psrorooo vo s onoo 1 omrenoo i s onoono ponsecno 1 4 pcpswoo 774 vo o amp oswowo o so ormon 1 s _ o s o s sv ves s mes re me veo s mom
34. policy The options for this setting are Write back default and Write through for CPU cache OPTIONS Write Ploicy Write back Write back policy provides better system performance because main memory is accessed only when necessary to update the cache contents with changes in main memory Write through policy accesses main memory every timedata is handled by the processor 3 63 File No 960 140 3 64 c Auto Power On Use this option to set a time and date for automatic power on the Alarm Date Option displays when Alarm Time is enabled OPTIONS Alarm Time 00 00 00 Alarm Date Option Disabled Alarm Time is set in the sequence of hours and minutes Seconds cannot be changed Alarm Date Option is set in the sequence of month and day If Alarm Date is set to Disabled the computer will be powered on at the same time every day Press 4 to move the cursor to the right and T to move the cursor to the left when you set the date and time File No 960 140 d Alarm Volume e This option disables or sets the volume level of the alarm Setting this option to off disables the computer s sound function for alarms Off Disables the alarm Low Sets the alarm volume to low Medium Sets the alarm volume to medium High Sets the alarm volume to high Default When Alarm Volume is selected the subwindow below displays to enable or disable certain functions ALARM VOLUME OFTIONS Low Battery Alarm Enabled Panel Clo
35. screw securing the LCD flexible cable and two M2 5x5 screws securing the display hinges 2 Remove two strips of tape securing the LCD flexible cable 3 Separate the LCD module from the top cover 1 4 31 Figure 4 24 Removing the LCD module File No 960 140 4 Remove insulator covering the microphone cable Figure 4 25 Removing tape 5 Remove one M2x4 screw securing the left top cover brace to the top cover and remove a plastic support for the left top cover brace Figure 4 26 Removing one screw and plastic support 4 32 File No 960 140 6 Remove the left top cover brace and microphone Figure 4 27 Removing the left top cover brace and microphone 7 Separate the microphone from its rubber case 8 Remove one 2 5 silver screw and a brace for the LCD flexible cable Figure 4 26 Removing the LCD flexible cable 4 33 File No 960 140 9 Remove the LCD cable by pulling it through the opening that was covered by the brace Figure 4 29 Removing the LCD cable 4 34 File No 960 140 Installing LCD Flexible Cable and Microphone To install the LCD flexible cable and microphone follow the steps below See figures 424 to 4 29 l 2 Thread the LCD cable through the slot in the top cover Seat the LCD flexible brace and secure it with one M2x5 screw Put the microphone in the rubber case and seat the microphone with rubber case in the top cover Seat the left top cover b
36. the current date time and other setup information in memory while the computer is turned off Table 1 8 lists the charging time and data preservation period of the battery Table 1 8 RTC battery charging data preservation time me Data preservation period full charge INU ZOU I U File No 960 140 Chapter 2 Troubleshooting Procedures File No 960 140 File No 960 140 Chapter2 Contents 2 1 Troubleshootins unse 2 1 2 2 Troubleshooting 1 anne asien 2 2 2 3 Power Supply Proubleshiootilg edt ER db atte aaa 2 6 Procedure 1 Power Status CHECK 2 6 Procedure 2 Error Gode Cheek doe petat el 2 8 Procedure 3 Conector Check th aieo e Genes 2 11 Procedure 4 Quick Charpe C heck tds 2 12 Procedure 5 Replacement Check rasta section a Steinen ehe 2 13 2 4 System Board Troubleshooting a a 2 14 Procedure 1 Message Check a ea el 2 15 Procedure 2 Printer Port LED Check on Boot 2 17 Procedure 3 Printer Port LED Check on Resume Mode 2 23 Procedure 4 Diagnostic Test Program Execution Check 2 24 Procedure 5 Replacement Check iiec AI e ips 2 24 25 PDD Troubleshooting noinen e 2 25 Procedure 1 FDD Head Cleaning Check e
37. track 0 Subtest 02 Address uniqueness This subtest writes unique address data to each sector of the HDD track by track The data written to each sector is then read and compared with the original data There are three ways the HDD can be read e Forward sequential e Reverse sequential e Random Subtest 03 Random address data This subtest writes random data to random addresses on the HDD cylinder head and sector This data is then read and compared to the original data 3 27 File No 960 140 Subtest 04 Subtest 05 Subtest 06 Subtest 07 Subtest 08 Subtest 09 Subtest 10 3 28 Cross talk amp peak shift This subtest writes eight types of worst pattern data listed below to a cylinder then reads the data while moving from cylinder to cylinder 9 49 4 5 cylinder 2DB6DB 6 cylinder D24924 7 cylinder Write read compare CE 638638 4 cylinder This subtest writes BSADADh worst pattern data to the CE cylinder on the HDD then reads the data from the CE cylinder and compares it with the original data Write specified address This subtest writes specified data to a specified cylinder and head on the HDD Read specified address This subtest reads data which has been written to a specified cylinder and head on the HDD ECC circuit This subtest checks the Error Check and Correction ECC circuit functions of the specified cylinder and head on the HDD Sequential write This subtest w
38. 123456789 lt gt G amp ABCDEFGHIJKLMNOPQRSTUVWXYZ X abcdefghijklmnopqrs 0123456789 lt gt GABCDEFGHIJKLMNOPORSTUVWXY 2 IN abcdefghijklmnopqrst 0123456789 lt gt GABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstu 0123456789 lt gt ABCDEFGHIJKLMNOPQRSTUVWXYZ _ abcdefghijklmnopqrstuv 0123456789 lt gt GABCDEFGHIJKLMNOPQRSTUVWXYZ 1 abcdefghijklmnopqrstuvw 0123456789 lt gt GABCDEFGHIJKLMNOPQRSTUVWXYZ N abcdefghijklmnopqrstuvwx 0123456789 lt gt GABCDEFGHIJKLMNOPQRSTUVWXYZ X abcdefghijklmnopqrstuvwxy File No 960 140 Subtest 022 Function This subtest is for IBM compatible printers and tests the following functions Normal print Double width print Compressed print Emphasized print Double strike print characters print This subtest prints the various print types shown below PRINTER TEST THIS LINE SHOWS NORMAL PRINT THIS LINE SHOWS DOUBLE WIDTH PRINT THIS LINE SHOWS COMPRESSED PRINT THIS LINE SHOWS EMPHASIZED PRINT THIS LINE SHOWS DOUBLE STRIKE PRINT gt ALL CHARACTERS PRINT 0123456789 lt gt BABCDEFGHIJKLMNOPQRSTUVWXYZ N abcdefghijklmn opgrstuvwxyz Subtest 03 Wraparound NOTE To execute this subtest a parallel port wraparound connector must be connected to the computer s printer port The connector s 34 741986601 wiring diagram is sho
39. 140 Table D 5 Scan codes in overlay mode Code set 1 Code set 2 Make Make Break Table D 6 Scan codes with Ctrl key Key Code set 1 Code set 2 top Make Break Make Break EO 2A EO 37 E0 B7 EO 12 EO 7C EO FO 7C EO FO 12 E0 37 EO B7 EO 7C E0 FO 7C E0 37 E0 B7 EO 7C E0 FO 7C D 7 File No 960 140 Table D 7 Scan codes with Alt key Key Code set 1 Code set 2 top Make Break E1 1D 45 Ei SD 1 14 77 Ei FO 14 FO 77 46 E0 7E E0 F0 This key generates only make codes D 8 File No 960 140 Appendix E Key Layout E 1 United States US Keyboard 6 o Figure E 1 US keyboard E 2 United Kingdom UK Keyboard Ss 5 A 4 Figure 2 UK keyboard E ok File No 960 140 E 3 German GR Keyboard TOI Pl JE ql Sere rrr rrr ee EL I A AC C 0 a Le AC XC AC AE C Ne EI EX nz 5 Figure E 3 GR keyboard 4 French FR Keyboard 173 ER Tien CI 2 24160 Figure E 4 FR keyboard File No 960 140 E 5 Spanish S
40. ADDRESS Line error REG Line error Line error CE 2 Line error DATA Line error WAIT Line error BSY Line error BVD1 Line error ZV Port error No PCMCIA NDP No Co Processor Control Word Error Status Word Error Bus Error Addition Error Multiply Error 3 36 File No 960 140 Table 3 2 Error codes and error status names 3 3 Device name Error code Error status name PCMCIA Address Line Error REG Line Error Line Error CE 2 Line Error DATA Line Error WAIT Line Error BSY Line Error BVD1 Line Error ZV Port Error No PCMCIA 3 37 File No 960 140 3 17 Hard Disk Test Detail Status When an error occurs in the hard disk test the following message displays HDC status XXXXXXXX Detailed information about the hard disk test error displays on the screen by an eight digit number The first four digits represent the hard disk controller HDC error status number and the last four digits are not used The hard disk controller error status is composed of two bytes the first byte displays the contents of the HDC status register in hexadecimal form and the second byte displays the HDC error register The contents of the HDC status register and error register are listed in Tables 3 3 and 3 4 Table 3 3 Hard disk controller status register contents 0 is 1 HDC is busy 0 Hard disk drive is not ready to accept any command 1 Hard disk drive is ready 0 DWF error i
41. C card and repeat Procedure 2 If there is still an error go to Check 2 Check 2 The FDD may be defective or damaged Replace the FDD with a new one If the FDD is still not functioning properly perform Check 3 Check 3 Replace the system board with a new one following the steps in Chapter 4 Replacement Procedures 1 27 File No 960 140 1 6 HDD Troubleshooting This section describes how to determine if the HDD 1 functioning properly Perform the steps below starting with Procedure 1 and continuing with the other procedures as required Procedure 1 Message Check Procedure 2 Partition Check Procedure 3 Format Check Procedure 4 Diagnostic Test Program Execution Check Procedure 5 Connector Check and Replacement Check NOTE The contents of the hard disk will be erased when the HDD troubleshooting procedures are executed Transfer the contents of the hard disk to floppy disk or other device If the customer has not or cannot perform the backup create backup disks as described below Check to see if the Microsoft Create System Disks Tools MSCSD EXE still exists in the System Tools Folder This tool can be used only once If it exists use it to back up the preinstalled software then use the Backup utility in the System Tools folder to back up the entire disk including the user s files Refer to the operating system instructions 1 28 File No 960 140 Procedure 1 Message Check When the computer s HDD does not
42. Copy complete Another copy 1 Yes 2 No To copy another disk type 1 and the message from step a displays again Entering 2 returns the test program to the DIAGNOSTIC MENU File No 960 140 4 DUMP program a When DUMP is selected the following message appears b c d DIAGNOSTICS HARD DISK amp FLOPPY DISK DUMP VX XX Drive type select 1 FDD 2 HDD Select a drive type If 1 is selected in step a the following message displays Select drive number 1 2 B Select an FDD drive number The display will go to step c If 2 is selected in step a the following message displays Select drive number 226 2 0 2 After selecting the HDD the display will go to step f The following message will display Format type select 1 2DD 3 2HD 2 Select a format type The following message will appear Insert source disk into drive A Press any key when ready 3 53 File No 960 140 e Insert a source disk and press any key f The following message will appear Max address Track XXXX Head XX Sector XX Track number Set the track number you want to dump The system will access the disk and dump a list 5 HDD ID program Selecting HDD ID displays the following HDD ID configuration HDD ID Read VX XX Drive 4X ID code h XXXX No of Cylinders XXXX XXXX Removable Cylinder
43. ERROR File No 960 140 Procedure 2 Printer Port LED Check on Boot Mode The printer port LED displays the IRT status and test status by turning lights on and off as an eight digit binary value for boot mode Figure 2 2 shows the printer port LED Figure 2 2 Printer port LED To use the printer port LED follow the steps below 1 Plug the printer port LED into the computer s parallel port 2 Hold down the space bar and turn on the computer s power 3 Read the LED status from left to right as you are facing the back of the computer 4 Convert the status from binary to hexadecimal notation 5 Ifthe final LED status is FFh normal status go to Procedure 4 6 If the final LED status matches any of the test status values in Table 2 3 perform Check 1 NOTE If an error condition is detected by the IRT test the printer port LED displays an error code after the IRT test ends For example when the printer port LED displays 1F and halts the IRT test has already completed the Display initialization In this instance the IRT indicates an error has been detected during the system memory test File No 960 140 Table 2 3 Printer port LED boot mode status 1 5 e f Ten Flash ROM check PIT ch 0 initialization BIOS rewrite flag initialization Transition to protected mode Boot block checksum KBC initialization BIOS runtime and IRT checksum KBC initialization KBC initialization BIOS rewrite BIOS rewrite re
44. File No 960 140 Copyright 1998 by Toshiba Corporation All rights reserved Under the copyright laws this manual cannot be reproduced in any form without the prior written permission of Toshiba No patent liability is assumed with respect to the use of the information contained herein Toshiba Libretto 100CT Maintenance Manual First edition February 1998 Disclaimer The information contained in this manual is subject to change without notice Toshiba Corporation and Toshiba America Information Systems Inc assume no liability for damages incurred directly or indirectly from errors omissions or discrepancies in connection with the furnishing performance or use of this material Trademarks IBM is a registered trademark and PC AT PS 2 and OS 2 are trademarks of IBM Corporation MS DOS and Windows are registered trademarks of Microsoft Corporation Intel and Pentium are registered trademarks and MMX is a trademark of Intel Corporation Lotus is a registered trademark of Lotus Development Corporation Novell and NetWare are registered trademarks of Novell Inc UNIX is a registered trademark of X Open Company Ltd Sound Blaster and Pro are trademarks of Creative Technology Ltd Centronics is a registered trademark of Centronics Data Computer Corporation other properties are trademarks or registered trademarks of their respective holders File No 960 140 Preface This maintenance manual describes how to perform ha
45. HD 3 Select the track you want the testto start on and press Enter Test start track Enter 0 dd 00 79 4 The floppy disk test menu will appear after you select Select the number of thesubtest you want to execute and press Enter The following message will appear during the floppy disk test 3 20 Subtest 01 Subtest 02 Subtest 03 Subtest 04 Subtest 05 File No 960 140 Sequential read This subtest performs a Cyclic Redundancy Check CRC that continuously reads all the tracks on a floppy disk The following tracks are read according to the media type in the floppy disk drive Double sided double density 2D Tracks 0 to 39 Double sided double density double track 2DD and double sided high density double track 2HD Tracks 0 to 79 The start track is specified when the FDD test is started from the Diagnostic Test Menu Refer to Step 3 at the beginning of this section to set the start track Sequential read write This subtest continuously writes data pattern BSADADh to all the specified tracks selected in subtest 01 The data is then read and compared to the original data Random Address Data This subtest writes random data to random addresses on all tracks defined in subtest 01 The data is then read and compared to the original data Write Specified Address This subtest writes specified data to a specified track head and address Read Specified Address This subtest reads d
46. HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH To exit this subtest and return to the DISPLAY TEST menu press Ctrl 4 Break 140 NOTE The last row may not be completely filled This condition does not indicate on error BUS Master Transfer This subtest PCI BUS MASTER test 3 19 File No 960 140 3 8 Floppy Disk Test NOTE Before running the floppy disk test prepare a formatted work disk Remove the Diagnostics Disk and insert the work disk into the FDD The contents of the floppy disk will be erased To execute the Floppy Disk Test select 5 from the DIAGNOSTIC TEST MENU press Enter and follow the directions displayed on the screen The Floppy Disk test contains five subtests that test the FDD The following messages will appear after selecting the Floppy Disk Test from the DIAGNOSTIC TEST MENU Answer each question with an appropriate response to execute the test 1 Select the test drive number of the floppy disk drive to be tested and pressEnter Test drive number select 1 FDD 1 2 FDD 2 0 FDD1 amp 2 gt 2 Select the media type of the floppy disk in the test drive to be tested and pressEnter Media in drive mode 0 2DD 1 2D 2 2D 2HD 2DD 3 2
47. IC TEST MENU press Enter and follow the directions on the screen The Keyboard test contains foursubtests that test the computer s keyboard PS 2 mouse and Pointing Stick actions Move the highlight bar to the subtest you want to execute and press Enter Subtest 01 Pressed key display 80 82 NOTE The Num Lock and the Overlay mode must be off to execute this subtest When you execute this subtest the keyboard layout is drawn on the display as shown below When any key is pressed the corresponding key on the screen changes to the key that was pressed Holding a key down enables the auto repeat function which causes the key s display character to blink Press Key Display HEEE EN E R EE UN If test OK Press Del Enter Key 3 12 Subtest 02 Subtest 03 File No 960 140 Pressed key code display When key is pressed the scan code character code and key top name displays on the screen in the format shown below The Ins Caps Lock Num Lock Scroll Lock Alt Ctrl Left Shift and Right Shift keys display in reverse screen mode when pressed The scan codes character codes and key top names are shown in Appendix D KEYBOARD TEST N PROGRESS 302000 Scan code Character code Keytop Ins Caps Lock Num Lock Sc
48. ICS TEST MENU press Enter and follow the directions on the screen The sound test contains foursubtests that test the computer s sound functions NOTE execute this subtest the internal microphone and internal headphone or internal speaker are required The system is capable of producing high volume sound so when you use the headphones be careful to set the volume low and adjust it as necessary Using the headphones at full volume could damage your ears Subtest 01 CODEC REC PLAY Test the functions of the Codec AD1848 A D D A converter Test the microphone terminals and headphone terminals at the same time When you execute this subtest the following message displays Quick REC amp PLAY for AD1848 Press any key to REC After pressing any key start recording and immediately play the sound It takes three seconds Subtest 02 FM Synthesizer Test the OPL3 YMF262 functions Connect the headphone and check the scale on the right and left sides Also check the sound adjustment volume Subtest 03 SIN Wave Playback This subtest expands the sine wave data table to 64KB and creates sine wave data The play data 15 transferred between DMA and CODEC and plays the sound It is a long beep Also using the oscilloscope observe the sine waveform 3 34 File No 960 140 3 16 Error Code and Error Status Names Table 3 2 lists the error codes and error status names for the Diagnostic Test Tabl
49. P Keyboard s J mum 20 3 4 5 git 8 9 0 ae Figure E 5 SP keyboard E 6 Italian IT Keyboard Sooo 4 5 9 E A E AC am eA SAT 33 TT TE AE NE YE aaa Figure E 6 IT keyboard lg js nr E 3 File No 960 140 E 7 Scandinavian SC Keyboard NC NC CS NCC NCC CS NCC C C ee NC a EXC AT YE YE AC a 2 say maa p gon End at Hil re F Figure E 7 SC keyboard E 8 Swiss German SL Keyboard HE 18 2 o 8 4 5 8 Lom Y Figure E 8 SL keyboard lg t Br File No 960 140 Appendix F Wiring Diagrams F 1 Parallel Port Wraparound Connector 9 07 15 ERROR 8 PD6 14 AUTFD 7 05 13 SELECT 6 PD4 16 5 PD3 1 STROBE 10 ACK 4 PD2 12 PE 3 PD1 17 SLIN 2 PDO 11 BUSY Figure F 1 Parallel port wraparound connector F 2 Serial Port Wraparound Connector 3 TD 2 RD 7 RTS 8 CTS 4 DTR 6 058 9 RI Figure
50. PS microprocessor Close PCI device configuration area Protect system BIOS Cache control System ROM check System ROM check End Check 1 If any of the following error codes display go to Procedure 5 BOh B2h B3h 00h Olh O5h 06h 03h 04h 02h 71h 07h 73h 74h 72h 76h 79h 77h 78h 81h 82h 7Bh 7Ch 7Ah 08h 09h ODh 19h 1Fh 20h 21h 25h 30h 40h 41h 42h 70h 80h AOh A6h FEh Check2 If error code 83h is displayed go to the following sections Section 2 5 FDD Troubleshooting Section 2 6 HDD Troubleshooting 1 22 File No 960 140 Procedure 3 Printer Port LED Check on Resume Mode The printer port LED displays the IRT status and test status by turning lights on and off as an eight digit binary value for Hibernation mode To use the printer port LED follow the steps below 1 Make sure the computer is in Resume mode 2 Plug the printer port LED into the computer s parallel port 3 Turn on the computer s power 4 Read the LED status from left to right as you face the back of the computer 5 Convert the status from binary to hexadecimal notation 6 If the final LED status is FFh normal status go to Procedure 4 7 Ifthe final LED status matches any of the test status values in Table 2 4 perform Procedure 5 Table 2 4 Printer port LED Resume mode error status Emwsmus Memmposus 2 eternal cpa SRAM checksum enor or memory eror d
51. Removing the speaker 2 Separate the speaker from its case 3 Disconnect the AccuPoint flexible cable from PJ12 on the power switch board 4 28 File No 960 140 4 Turn over the power switch board being careful not to apply tension to the remaining cable connection and disconnect the LCD flexible cable from PJ3 the power switch board Figure 4 22 Removing the power switch board 5 Remove one M2x3 silver screw securing the AccuPoint board and lift out the board Figure 4 23 Removing the AccuPoint board 4 29 File No 960 140 Installing the Speaker Power Switch Board and AccuPoint Board To install the speaker power switch board and AccuPoint board follow the steps below See figures 4 21 to 4 23 1 2 4 30 Seat AccuPoint board and secure it with one M2x3 silver screw Connect the LCD flexible cable to PJ3 on the power switch board Connect the AccuPoint flexible cable to PJ12 on the power switch board Seat the speaker in its case Connect the speaker cable to the speaker connector and seat the speaker with its rubber case Install the removed components File No 960 140 To remove the LCD flexible cable and microphone follow the steps below See figures 424 4 12 LCD Flexible Cable and Microphone to 4 29 Removing LCD Flexible Cable and Microphone WXXEEEXXLM WXXEEEZXXXEEEXXXEEXEX WXXEEEZEXXEEEZXXEEXEX HAMA A ER TEE Tg Remove one 2 5 sliver
52. Table C 2 Table C 3 Table C 4 Table C 5 Table C 6 Table C 7 Table C 8 Table C 9 Table C 10 File No 960 140 Board layout front eese rt te e B 1 Board layout B 2 US Keyboard ape aa E 1 UK keyboard renren E 1 GR keyboard ses E ro rd du dba gs E 2 FR keyboard T 2 RR I LUE E 3 IT keybodtd aaa E 3 SC keyboard hoa Bee E 4 5 E 4 Parallel port wraparound connector sess F 1 Serial port wraparound connector sess F 1 Serial port direct cable 9 pin to 9 2 F 2 Serial port direct cable 9 pin to 25 F 2 System board ICs and connectors B 3 System board ICs and connectors B 3 Expansion Memory connector pin assignments 140 pin C 1 Docking Interface connector pin assignments 140 C 3 FL Inverter I F connector pin assignments 60 C 6 RTC Battery connector pin assignments C 7 HDD connector pin assignments 44 pin eee C 7 Keyboard connector pin assignments 24
53. XXXXxxxxx fs Figure 4 11 Removing the display assembly 4 15 File No 960 140 Installing the Display Assembly To install the display assembly follow the steps below See figures 4 8 to 411 l 4 16 Seat the display assembly and connect the microphone cable to PJ470 on the system board Connect the display flexible cable to PJ250 on the system board figure 4 9 Lay the metal cover in place making sure the cover is properly aligned with the edges of the computer Route the RTC battery cable in its groove and secure it with insulator Close the display turn the computer upside down and fasten the display withfive M2x14 silver screws Install removed components File No 960 140 4 6 RTC Battery Removing the RTC Battery To remove the RTC battery follow the steps below See figure 4 12 1 Disconnect battery cable from PJ300 on the system board 2 Lift out the RTC battery Figure 4 12 RTC battery removal Installing the RTC Battery To install the RTC battery follow the steps below See figure 4 12 1 Connect the RTC battery cable to PJ300 on the system board 2 Seatthe RTC battery 3 Install the removed components 4 17 File No 960 140 4 7 System Board Heat Sink and PC Card Slot Removing the System Board Heat Sink and PC Card Slot To remove the system board heat sink and PC card slot observe the following procedures See figures 4 13 to 4 15 1 Grasp the syst
54. ables Table 2 1 Battery 160 2 6 Table 3 2 DG MIN CON A ede ioa a 2 7 Table 2 3 Printer port LED boot mode status seen 2 18 Table 2 4 Printer port LED Resume mode error 8 2 23 Table 2 5 FDD error code and status oie aaa aa 2 26 Table 2 6 Hard disk drive error code and 2 32 File No 960 140 1 1 Troubleshooting Chapter 2 describes how to determine if a Field Replaceable Unit FRU in the computer is causing the computer to malfunction The FRUs covered are 1 System Board 4 Hard Disk Drive 7 Pointing Board 2 FL Inverter Board 5 Keyboard 3 Floppy Disk Drive 6 Display The Diagnostics Disk operations are described in Chapter 3 Detailed replacement procedures are given in Chapter 4 The following tools are necessary for implementing the troubleshooting procedures 1 Diagnostics Disk Phillips screwdriver 2 mm Toshiba MS DOS system disk s You must install the following onto the disk SYS COM FORMAT COM FDISK COM and FDISK EXE 2DD or 2HD formatted work disk for floppy disk drive testing Cleaning kit for floppy disk drive troubleshooting Printer port LED Printer port wraparound connector Serial port wraparound connector PC card wraparound card 10 Multimeter 11 I O Adapter 12 External FDD wr File No 960 140 1 2 Tro
55. address data Write specified address Read specified address Ripple pattern Function Wraparound SubtestNo 1 01 05 06 07 08 2 01 02 03 04 05 06 3 KEYBOARD 01 Pressed key display 02 Pressed key code display 03 PS 2 Mouse connect check 04 Pointing Stick 05 USB Warp around test 4 01 02 03 04 05 5 01 02 03 04 05 01 02 03 3 7 Fil 3 8 e No 960 140 Table 3 1 Subtest names 2 2 7 ASYNC 01 Wrap around board 02 Point to point send 03 Point to point receive 04 Interrupt test 06 FIR SIR point to point send 07 FIR SIR point to point receive HDD Sequential read Address uniqueness Random address data Cross talk amp peak shift Write read compare CE Write specified address Read specified address ECC circuit Sequential write W R C specified address REAL TIMER 01 Real time 02 Backup memory 03 Real time carry 11 EXPANSION 01 PCMCIA wrap around 02 DS bus wrap around 03 RGB monitor ID 04 PCMCIA wrap around External 06 ZN port wrap around 12 SOUND 01 CODEC REC PLAY 02 FM Synthesizer 03 SIN Wave Playback File No 960 140 3 4 System Test To execute the System Test select 1 from the DIAGNOSTIC TEST MENU press Enter and follow the directions on the screen Move the highlight bar to thesubtest you want to execute and press Enter Subtest 01 ROM Checksum This subtest executes a checksum test of the BIOS ROM on the system board Subtest 05 Thermistor Check This s
56. al instructions given below Take time and reassemble it properly as instructed Hasty work often raises problems Check that the cables and connectors are securely fastened Before mounting the FRUs and other parts check that the cables are not caught by screws or FRUs Check that all the latches are correctly closed Check that all FRUs have been fastened securely with all the screws If the wrong screws are used it may result in damage to the screw threads and heads or the FRUs may not be fixed securely After repairing put all items which are removed from target machine After mounting the FRUs back in position check that the computer operates normally 4 3 File No 960 140 Tools and Devices It is important for the safety of the workers and others in the neighborhood to use electrostatic discharging ESD devices Proper use of these devices will raise the success rate of repairs and reduce the expenses arising from damage and breakdown of the parts The following are necessary for disassembly and reassembly L 9 9 9 9 2 mm Philips screwdriver Tweezers for easy removal of screws ESD mat to be placed on the work bench or floor ESD wrist strap or heel grounder Anti static carpet or floor Screw Tightening Torques Observe the following torques in tightening the screws Overtightening may cause damage to the parts or screws and undertightening may lead to a shortcircuit or oth
57. and press Enter The following message will appear Interleave number 1 1 8 b Select an interleave number 1 8 and press Enter Pressing only Enter selects 1 3 42 File No 960 140 c Bad track register The Bad Track register prompt will appear as shown below Enter the cylinder and head numbers of bad tracks and press Enter Note that if there are no bad tracks pressing Enter alone is the same as executing Track Format described in item d below WARNING Current DISK data will be completely destroyed Press Bad cylinder number dddd key Press Bad head number dd key 2 Enter the cylinder and head number in the format above in decimal notation Repeat for each bad track you want to format After entering the bad tracks press Enter to execute the format d All track format tracks are formatted as good tracks except those registered as bad tracks in item c above or those identified as bad tracks in track verification described in item e below e Track verification A check 15 made of all tracks and ECC error ECC correctable data error or record not found error 15 detected at a track that track 15 formatted as a bad track automatically 2 Good Track FORMAT If a good track has been erroneously formatted as a bad track you can use this subtest to reformat the track as a good track To format a track as a good track enter the number for the drive in
58. ard disk formats and check 1 Alltrack FORMAT 2 Good track FORMAT 3 Bad track FORMAT 4 Bad track CHECK The contents of the hard disk will be erased when the program executes Before running the test the customer should transfer the contents of the hard disk onto a floppy disk If the customer has not or cannot perform the backup create backup disks as described below Check to see if the Microsoft Create System Disks Tools MSCSD EXE still exists in the System Tools Folder This tool can be used only once If it exists use it to back up the preinstalled software then use the Backup utility in the System Tools folder to back up the entire disk including the user s files Refer to the operating system instructions 3 40 File No 960 140 3181 Function Description 1 Track FORMAT This option performs a low level format of all the tracks on the hard disk as listed in Table 3 5 below NOTE Before executing the all track format option check for bad tracks using the Bad Track CHECK option or display a list of bad tracks on the HDD Table 3 5 Hard disk formatting sequence tems IBM DYKA 22160 IBM DYKA 23240 Storage capacity 2 167 603 200 3 253 469 184 Formatted Bytes Cylinders 4 200 6 304 m 2 Good Track FORMAT This option formats a specified cylinder and track as a good track If a good track is formatted as a bad track use this option to change the track to a good track
59. ata from a specified track head and address 3 21 File No 960 140 3 9 Printer Test To execute the Printer Test select 6 from the DIAGNOSTIC TEST MENU press Enter and follow the directions on the screen The Printer Test contains threesubtests that test the output of the printer connected to the computer The following messages will appear after selecting the Printer Test Answer each of the questions with an appropriate response to execute the test NOTE An IBM compatible printer must be connected to the system to execute this test The following message will appear when the printer test is selected channel 2 XXXXh channel 3 XXXXh Select the channel number 1 3 2 The printer I O port address is specified by the XXXXh number The computer supports three printer channels Select the printer channel number and press Enter to execute the selected subtest Subtest 01 Ripple pattern This subtest prints characters for codes 20h through 7Eh line by line while shifting one character to the left at the beginning of each new line MESSE 0123456789 lt gt GABCDEFGHIJKLMNOPORSTUVWXYZ X abcdefghijklmno 3 22 DURSSE 0123456789 lt gt GABCDEFGHIJKLMNOPQRSTUVWXYZ N abedefghijklmnop 0123456789 lt gt ABCDEFGHIJKLMNOPQRSTUVWXYZ abedefghijklmnopq 2 0123456789 lt gt ABCDEFGHIJKLMNOPORSTUVWXYZ abcdefghijklmnopqr 8 0
60. checks If the FL does not light perform Check 4 If characters are not displayed clearly perform Check 3 If some screen functions do not operate properly perform Check 3 If the FL remains lit when the display is closed perform Check4 Check 1 Replace the LCD flat cable with a new one and test the display again Ifthe problem still exists perform Check 2 Check 2 Replace the LCD module with a new one test the display again If the problem still exists perform Check 3 Check 3 Replace the FL inverter board with a new one and test the display again If the problem still exists perform Check 4 Check 4 Replace the FL with a new one and test the display again If the problem still exists perform Check 5 Check 5 The system board may be damaged Replace the system board with a new one 1 38 File No 960 140 Chapter 3 Tests and Diagnostics File No 960 140 File No 960 140 Chapter 3 Contents 3 1 32 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 10 3 11 3 12 3 13 3 14 3 15 3 16 3 17 3 18 3 19 3 20 3 21 The Diasn stie Testcenter a tee H Ra 3 1 Executing the Diagnostic Test ann ei 3 3 Subtest Names i ei e il u 3 7 System 3 9 Memory 3 10 Keyboard Test oH ieu pi mU eae 3 12 Display P 3 16 Floppy Disk Test er Idee ima Seed eee eae 3 20 Print
61. d Not registered The user password has not been registered For details on setting the user password refer to the User s Manual Peripheral a Pointing Devices This option enables or disables the AccuPoint Auto Selected If a PS 2 mouse is connected to the computer when you turn on the power the PS 2 mouse is enabled and the AccuPoint is disabled Otherwise the AccuPoint is enabled Default Simultaneous Enables both the AccuPoint and PS 2 mouse or the AccuPoint and a mouse connected to USB port File No 960 140 b Parallel Port Mode This option in this tab are ECP and Standard Bi directional ECP Sets the port mode to Extended Capabilities Port For most printers the port should be set to ECP Default Std Bi Direct This setting should be used with some other parallel devices c Hard Disk Mode Use this item to select the hard disk mode Enhanced IDE Select this mode when using MS DOS Normal Windows for Workgroups Windows 95 or 2 Default Standard IDE Select this mode when using Novell NetWare or UNIX When this mode is selected up to 504MB is logically available even though the disk s capacity is larger than 504MB NOTE Formats for Enhanced IDE and Standard IDE are different so if you change the setting you will have to reformat the hard disk for the appropriate setting 4 Boot Priority Use this option to select the disk drive priority for boot up FDD
62. e 2 25 Procedure 2 Diagnostic Test Program Execution Check 2 26 Procedure 3 Connector Check and Replacement 2 27 2 6 HDD Troubleshooting daa reads BR u 2 28 Procedure 1 Message Check unse 2 29 Procedure 2 Partition Check 2 30 Procedure 3 Format 2 31 Procedure 4 Diagnostic Test Program Execution Check 2 32 Procedure 5 Connector Check and Replacement 2 33 2 7 Keyboard Troubleshooting 2 Dott de a a aaa 2 34 Procedure 1 Diagnostic Test Program Execution Check 2 34 Procedure 2 Connector and Replacement 2 35 2 iii File No 960 140 2 8 Pointing Device 2 36 Procedure 1 Diagnostic Test Program Execution Check 2 36 Procedure 2 Connector and Replacement Check 2 36 2 9 Display Troubleshooting dte o cia sce ratae tede 2 37 Procedure 1 Diagnostic Test Program Execution Check 2 37 Procedure 2 Connector and Replacement 2 38 Figures Figure 2 1 Troubleshooting 2 3 Figure 2 2 Printer port LED ioci ee 2 17 T
63. e 3 2 Error codes and error status names 1 3 Device name Error code Error status name Keyboard 01 02 03 01 02 14 DD F Data Compare Error ROM Checksum Error Location ID error Serial ID Write error Parity Error Protected Mode Not Changed Memory Read Write Error Cache Memory Error 2nd Cache Error TAG RAM Error Bad Command Address Mark Not Found Write Protected Record Not Found Media Removed DMA Overrun Error DMA Boundary Error CRC Error FDC Error Seek Error Not Drive Error Time Out Error Write Buffer Error Data Compare Error Mouse interface error IPS interface error Interface error Retransmi error Mouse handler not support PS 2 mouse amp IPS not support Time Out Fault Select Line Out Of Paper Power Off Busy Line 3 35 File No 960 140 Table 3 2 Error codes and error status names 2 3 Device name Error code Error status name ASYNC DSR On Time Out CTS On Time Out RX READY Time Out TX FULL Time Out Parity Error Framing Error Overrun Error Underrun error Timer time out error CRC error Line Status Error Modem Status Error HDD Bad Command Error Address Mark Not Found Record Not Found HDC Not Reset Error Drive Not Initialized HDC Overrun DRQ DMA Boundary Error Bad Sector Bad Track Error ECC Error ECC Recover Enable HDC Error Seek Error Time Out Error Drive Not Ready Undefined Error Write Fault Status Error Access Time Out Error No HDD Expansion
64. e 3 Connection Check The power supply wiring diagram is shown below Any of the connectors may be disconnected Perform Check 1 Check 1 Make sure the Libretto 100 s AC adapter is firmly connected to the computer s DC IN socket and a power source If these cables are connected correctly go to Check 2 Check 2 Replace the AC adapter with new one If the DC IN icon does not glow green go to Procedure 5 File No 960 140 Procedure4 Quick Charge Check The power supply may not charge the battery pack Perform the following procedures l 2 4 Reinstall the battery pack Attach the AC adapter and turn on the power If you cannot turn on the power go to Procedure 5 Run the Diagnostic test go to System test and execute subtest 06 quick charge described in Chapter 3 When quick charge is complete the diagnostics test displays the result code Check the result code against the table below and perform any necessary check fone ones The Battery is not installed Check 2 Check 1 Make sure the AC adapter and AC power cord are firmly plugged into the DC IN socket and the wall outlet If these cables are connected correctly replace the AC power cord and AC adapter Check 2 Make sure the battery 15 properly installed If the battery is properly installed replace it with a new one Check3 The battery pack may be completely discharged Wait a few minutes to cha
65. e HDD To remove the HDD follow the steps below See figures 4 1 to 4 3 1 Remove the two M2x14 silver screws securing the HDD cover and remove the cover Figure 4 1 Removing the HDD cover 4 8 File No 960 140 2 Pull the HDD bracket straight with your fingernail and pull the HDD out NOTE When pulling the HDD out be sure to hold both corners of the bracket as shown below so as not to bend the bracket Figure 4 2 Removing the HDD 3 Remove two thin flat head M3 screws from the HDD bracket and separate the bracket and the HDD Figure 4 3 Removing the HDD bracket Installing the HDD To install the HDD follow the steps below See figures 4 1 to 4 3 1 Secure the HDD bracket to the HDD with two flat head M3 screws 2 Insert the HDD into the HDD slot and push it carefully and securely into place 4 9 File No 960 140 3 Seat the HDD cover and fasten it with two M2x14 silver screws 4 10 File No 960 140 4 3 Optional Memory Module Removing Optional Memory Module To remove the optional memory module follow the steps below See figures 4 4 to 4 6 1 Lift up the right end of the keyboard brace to remove it Figure 4 4 Removing the keyboard brace 2 Lift up the back edge of the keyboard Figure 4 5 Lifting up the keyboard 4 10 File No 960 140 4 Lift out the keyboard and lay it against the display being careful not to apply tension to the cables Remove the super thin head 2
66. e IRT tests each IC on the system board and initializes it Check 1 Check 2 If an error message is shown on the display perform Check 1 If there is no error message go to Procedure 2 If Toshiba MS DOS or Toshiba Windows 95 is properly loaded go to Procedure 4 If one of the following error messages displays on the screen press theF1 key as the message instructs These errors occur when the system configuration preserved in the RTC memory CMOS type memory is not the same as the actual configuration or when the data is lost If you press the F1 key as the message instructs the TSETUP screen appears to set the system configuration If error message b appears often when the power is turned on replace the RTC battery If any other error message displays perform Check 2 a Bad HDD type Check system Then press Fl key b Bad RTC battery Check system Then press F1 key c Bad configuration Check system Then press Fl key d Bad memory size Check system Then press Fl key e Bad time function Check system Then press Fl key Bad check sum CMOS Check system Then press Fl key Bad check sum ROM Check system Then press Fl key If the following error message displays on the screen press any key as the message instructs If
67. e control The keyboard also includes two keys that have special functions in Microsoft Windows 95 It supports software that uses a 101 or 102 key enhanced keyboard Batteries The computer has two batteries a Lithium Ion main battery pack and RTC battery that backs up the Real Time Clock and CMOS memory Expansion memory slot An optional 32MB memory module can be installed in the memory slot INU JOU I U Universal Serial Bus USB The USB enables daisy chain connection of up to 127 USB equipped devices and 12Mbps serial data transfer It is designed for easy configuration by a PnP operating system and provides hot insertion ejection capability The USB port is only on the Enhanced Port Replicator External monitor port The port is available only on the I O adapter and enables connection of an external SVGA compatible monitor PC card slot A PC card slot accommodates two 5mm cards Type II or one 10 5mm Type III card which support the PC card Standard These slots support an external FDD 16 bit PC cards and CardBus PC cards 32 bit as well as the Zoomed Video ZV port cards which are dedicated to high performance video data transfer such as MPEG video play back AccuPoint This pointer control stick located in the right of the display panel provides convenient control of the cursor without requiring desk space for a mouse Docking interface A 140 pin docking interface port
68. e it with a new one following the instructions in Chapter 4 If the problem still exists perform Check 3 Check 3 The system board may be damaged Replace it with a new one following the instructions in Chapter 4 1 33 File No 960 140 1 7 Keyboard Troubleshooting To determine if the computer s keyboard is functioning properly perform the following procedures Start with Procedure 1 and continue with the other procedures as instructed Procedure 1 Diagnostic Test Program Execution Check Procedure 2 Connector and Replacement Check Procedure 1 Diagnostic Test Program Execution Check Execute the Keyboard Test in the Diagnostic Program Refer to Chapter 3 Test and Diagnostics for more information on how to perform the test program If an error occurs go to Procedure 2 If an error does not occur the keyboard is functioning properly If the external keyboard appears to have the same problem as the internal keyboard the system board may be damaged Go to Procedure 2 1 34 File No 960 140 Procedure2 Connector and Replacement Check The keyboard is connected to the system board by flat cables These cables or connectors may be disconnected or damaged If there is a problem with the keyboard disassemble the computer as described in Chapter 4 Replacement Procedures and perform Check 1 Check 1 Make sure the following cables are not damaged and are connected to the system board If the cables are damaged replace th
69. e keyboard with a new one If the cable is disconnected firmly connect it Perform Procedure 1 again If the error still exists perform Check 2 Check 2 The system board may be damaged Replace the system board with a new one Refer to Chapter 4 Replacement Procedures for more information 1 35 File No 960 140 1 8 Pointing Device Troubleshooting To determine if the computer s pointing device is functioning properly perform the following procedures Procedure 1 Diagnostic Test Program Execution Check Procedure 2 Connector and Replacement Check Procedure 1 Diagnostic Test Program Execution Check Execute the pointing device Test in the Diagnostic Program of Keyboard Test Program Refer to Chapter 3 Test and Diagnostic for more information on how to perform the test program If an error occurs go to Procedure 2 If an error does not occur the pointing device is functioning properly Procedure2 Connector and Replacement Check The pointing device is connected to the system board by the FLIMC board flexible cable The FLIMC board or connectors may be disconnected or damaged If there is a problem with the pointing device disassemble the computer as described in Chapter 4 Replacement Procedures and perform Check 1 Check 1 sure the FLIMC board or the pointing device is not damaged and that both are connected to the system board If the FLIMC board or the pointing device is damaged replace the FLIMC board o
70. e six M2xS silver screws to the bottom and three M2x5 silver screws to the back 4 38 File No 960 140 Appendices File No 960 140 App ii File No 960 140 Appendix Contents Appendix A Appendix B B 2 Appendix C C2 C3 C 4 5 C 6 C7 C 8 C9 C 10 11 12 Appendix D Appendix E EZ E 3 E A E 5 E 6 Handling the LCD A 1 Board ay OU 1 System Board Front VIEW anges RESI B 1 System Board Back V le Wo oe ee EROR NAR B 2 Pin Assignments nee C 1 Expansion Memory Connector 140 1 C 1 PJ200 Docking Interface Connector 140 pin senes C 3 PJ250 FL Inverter Connector 60 C 6 PJ300 RTC Battery Connector C 7 PJ301 HDD Connector 44 cesses C 7 PJ302 Keyboard Connector 24 pin eese C 8 PJ303 PC Card Slot Connector 150 C 9 PJ401 Headphone Connector C 11 PJ470 Internal Microphone Connector 2 pin sese C 11 PJ471 External Microphone Connector 5 pin esses C 12 500 AC Adapter Connector 2 222 00 1 01 C 12 PJ510 Main Battery Connector 10 C 12 Keyboard Scan Charac
71. em board and lift it out Figure 4 13 Removing the system board 2 Remove one M2x4 screw and two M2x6 screws securing the heat sink to the system board 3 Remove four M2x14 screws securing both the heat sink and PC card slot to the system board 4 Lift off the heat sink 4 18 File No 960 140 Figure 4 14 Removing the heat sink 5 Turn the system board over and lift off the PC card slot Figure 4 15 Removing the PC card slot Installing System Board Heat Sink and PC Card Slot To install the system board heat sink and PC card slot follow the steps below See figures 4 13 to 4 15 1 Secure the heat sink to the system board with one M2x4 screw and two M2x6 Screws 2 Turn over the system board and set the PC card slot in place Turn the system board back over and secure the PC card slot with four 2x14 silver screws 3 Align the power connector with its housing and seat the system board 4 19 File No 960 140 4 8 Display Mask Removing the Display Mask To remove the display mask follow the steps below See figures 4 16 to 4 17 1 Remove the two mask seals on the right and left in the lower part of the display mask 2 Remove two 2 5 5 screws that were covered by the seals 3 Remove the AccuPoint cap Figure 4 16 Removing the mask seals 4 Carefully insert your fingers between the mask and top of the LCD panel and release the four latches at the top of the display mask 4 20 Fi
72. enables connection of the I O adapter or an optional Enhanced Port Replicator The Enhanced Port Replicator has two additional PC card slots that one accommodates a 10 5mm card Type III and one accommodates a 5mm card Type II These slots support CardBus PC card The Enhanced Port Replicator also has PS 2 M mouse PS 2 compatible keyboard USB parallel serial and external monitor ports Infrared port The infrared port is compatible with Fast InfraRed FIR standards enabling wireless 4Mbps data transfer with Infrared Data Association IrDA 1 1 compatible devices Sound system A Sound Blaster Pro and Windows Sound System compatible sound system gives the computer multimedia capability The sound system is equipped with speaker microphone and stereo headphone jack INU ZOU I U External FDD A 3 5 inch external FDD is connected to the PC card slot and accommodates both 2HD 1 44MB and 2DD 720KB disks INU JOU I U The computer is shown in Figure 1 1 The system unit configuration is shown in Figure 1 2 Figure 1 1 Front of the computer PLE PES System Board PR FRO FHT FHT Figure 1 2 System unit configuration INU ZOU I U 1 2 System Unit Block Diagram Figure 1 3 is a block diagram of the system unit van MagicGraph SED Ga 122 L 4 Eins Mec BE Mixer Ez S
73. er DOSE 3 22 X ani Rp M 3 24 Hard Disk Pest 2 2 3 26 Real Timer i Ra een 3 30 NDP Vest Ec Ec 3 32 Expansion came ehh t iit et 3 33 Sound Test eei nece d ei dit qe o Ela 3 35 Error Code and Error Status 3 36 Hard Disk Test Detail Status ein ead seio lada 3 39 Hard Disk Format 3 41 3 18 1 Function DescriptiOnsissscis iieri uns 3 42 3 18 2 Operations io oie e otto eii ebd ea uei veles 3 43 Head Cleaning ee Re 3 46 S49 T P uncuon Deseriplion ansehe 3 46 3 19 2 Operations cione aei epe idi He 3 46 Log WHOS M 3 47 3 20 1 Function Description iui sienten eer reete eda 3 47 3 202 ODperatiOlls URSI A URINAM 3 47 Running 3 49 3 21 1 Function Description oe ne 3 49 3212 Operations ptite ad dedi edens 3 49 3 iii File No 960 140 3 22 Floppy Disk Drive Utilities oii ee 3 51 3 22 1 Function Description uui eti 3 51 3 22 2 Operations ioi petas ooi e pa ud e oa epe 3 52 3 23 System nai etn EH veda cbe etie 3 56 3 23 1 Functio
74. er damage from loose screws or parts 9 9 9 9 9 4 4 M2 2 mm M2 5 2 5 mm HDD screw M3 M3 3 mm Thin head M2 5 screw Super thin head M2 5 screw 0 22 N m 2 2 kgf cm 0 36 N m 3 5 kgf cm 0 3 N m to 0 28 N m 3 1 kgf cm to 2 9 kg cm 0 49 N m 5 0 kgf cm 0 22 N m 2 2 kgf cm 0 22 N m 2 2 kgf cm File No 960 140 Removing the Battery Pack To remove the battery pack follow the steps below 1 Switch the computer off Disconnect the AC adapter and any other external devices from the computer 2 Turn the computer upside down 3 Slide the battery release latch to the left to unlock the battery 4 Slide the battery out CAUTION Do not short the battery pack terminals or the terminals of the personal computer to which the battery pack is to be connected When carrying the battery pack in a bag for example wrap it with vinyl sheet or the like to prevent the battery pack terminals from contact with metal objects If the terminals short they may become heated or develop a fire Do not heat disassemble or short the battery pack Do not throw it into fire Otherwise the battery pack may explode or cause a fire Before storing the battery pack cover the terminals with insulation tape or the like to prevent shorting Exposed terminals may cause explosion or fire during storage 4 5 File No 960 140 Installing the Battery Pack To install the battery pack observe the fo
75. erface Write buffer CPU DRAM CPU PCI PCI DRAM Prefetch buffer CPU PCI PCI DRAM Mobile PC PCI support DMA function Serial interrupt function Power management control Suspend resume control CPU stop clock function PCI clock stop function ACPI support function VO amp PC Card Controller Gate Array e This gate array has the following functions One UARTs 16550 equivalent One SIO is used for SIR One parallel port control supported ECP mini ISA bus control PCI bus front end control card control ZV port support CardBus control FIR function Universal I O port Beep volume Speaker control RTC One T9934 chip is used Video Controller NeoMagic NM2160 chip is used The Video controller incorporates 2MB of video memory using a 128 bit data path Keyboard Controller One M38813S chip is used This includes the keyboard scan controller and keyboard interface controller The KBC controls the internal keyboard external keyboard AccuPoint and PS 2 mouse 0 AccuPoint Controller IPSC 010B chip is used e This controller provides simultaneous control of the Pointing Device INU JOU I U LJ Sound Controller One OPL3 SA3 is used The OPL3 SA3 incorporates OPL3 FM synthesizer Digital Analog Converter DAC MPU401 MIDI interface INU JOU I U 1
76. erii Paralia phone Card Controler HR Docking hertsa PC CardiCardBus Pert 161 vih ot Keyboard Mouse PS Embedded processor E2P ROM Controler rg Internal KE Figure 1 3 System unit block diagram INU JOU I U The system unit is composed of the following major components Intel Pentium processor Intel 166MHz Pentium processor with MMX Technology The math co processor and 32KB cache memory are integrated into the Pentium Standard RAM 32 MB four 4M x 16 bit EDO DRAM chips e 3 3 volt operation No parity bit e Access time 60 ns e Data transfer is 64 bit width BIOS ROM Flash EEPROM e 512 KB one 512K x 8 bit chip 256 KB are used for system BIOS 64 KB are used for VGA BIOS 8 KB are used for plug and play data area 8 KB are used for password security 16 are used for boot strap 288 KB are reserved 5 volt operation e Access time 120 ns Data transfer is 8 bit width Optional memory One expansion memory slot is available for 33MB memory modules The 32MB memory modules consist of four 4M x 16 bit EDO DRAM chips 33 volt operation No parity bit e Access time 60 ns e Data transfer is 64 bit width INU ZOU I U System Controller Gate Array e This gate array has the following functions CPU interface control DRAM control PCI master slave int
77. function properly some of the following error messages may appear on the display Start with Check 1 below and perform the other checks as instructed Check 1 Check 2 Check 3 If any of the following messages appear go to Procedure 5 If the following messages do not appear perform Check 2 HDC ERROR After 5 seconds this message will disappear Or HDD 0 ERROR After 5 seconds this message will disappear Or HDD 1 ERROR After 5 seconds this message will disappear If either of the following messages appears go to Procedure 2 If the following messages do not appear perform Check 3 Insert system disk in drive Press any key when ready Or Non System disk or disk error Replace and press any key Check TSETUP to see whether the Hard Disk option is set to Not used If it is set to Not used choose another setting and restart the computer If the problem still exists go to Procedure 2 1 29 File No 960 140 Procedure 2 Partition Check Insert the Toshiba MS DOS system disk and restart the computer Perform the following checks Check 1 Check 2 Check 3 Check 4 Check 5 1 30 Type and press Enter If you cannot change to drive C go to Check 2 If you can change to drive C go to Check 3 Type FDISK and press Enter Choose Display Partition Information from the FDISK menu If drive C is listed go to Check 3 If drive C is not listed return to the FDISK menu and choose the
78. g the display flexible cable 4 14 Figure 4 10 Removing e en Cent ee ee oue ala 4 14 Figure 4 11 Removing the display 1 4 15 Figure 4 12 battery removal bestes titre t er 4 17 Figure 4 13 Removing the system 4 18 Figure 4 14 Removing the heat sink oie ent t eee read 4 19 4 iii File No 960 140 Figure 4 15 Figure 4 16 Figure 4 17 Figure 4 18 Figure 4 19 Figure 4 20 Figure 4 21 Figure 4 22 Figure 4 23 Figure 4 24 Figure 4 25 Figure 4 26 Figure 4 27 Figure 4 28 Figure 4 29 Figure 4 30 Figure 4 31 Figure 4 32 Removing the card slot niet reete bee ated etes 4 19 Removing the mask seals oii oe det ett sue a 4 20 Removing the display mask 4 21 Removing the FL inverter 4 22 Disconnecting the display cable eem 4 23 LCD module remiov all isn 4 25 Removing tlie speker uui aere aote tI no tete ae ds 4 27 Removing the power switch 4 28 Removing the AccuPoint board Haie ee ipee 4 28 Removing the LED module 2 4 30 apes EH 4 31 Removing one screw and plastic 4 31 Removing the left top cover brace and 4 32 Removing the LCD f
79. hines must be connected with an RS 232 C direct cable One machine should be set as send subtest 02 and the other set as receive subtest 03 The wiring diagram for the RS 232 C direct cable is shown in Appendix F This subtest sends 20h through 7Eh data to the receive side then receives the sent data and compares it to the original data File No 960 140 Subtest 03 Subtest 04 Subtest 06 Subtest 07 Point to point receive This subtest is used with subtest 02 described above This subtest receives the data from the send side then sends the received data Interrupt test This subtest checks the Interrupt Request Level of IRQ 4 3 and 5 from the send side FIR SIR Point to point send NOTE To execute subtests 06 and 07 each computer must have access to the other computer s infrared port This subtest sends 20h through 7Eh data to the receive side then receives the sent data and compares it to the original data through the SIR port FIR SIR Point to point receive This subtest is used with subtest 06 described above This subtest receives the data from the send side then sends the received data through the SIR port NOTE Select subtest numbers 06 and 07 The following message will appear Select the UIRCC mode 1 FIR 2 SIR 1 FIR mode 2 SIR mode 3 25 File No 960 140 3 11 Hard Disk Test To execute the Hard Disk Test select 8 from the DIAGNOSTIC TEST MENU press Ente
80. ine Wait line BSY BVDI line Oooovcoo This subtest is executed in the following order Good 01 00001 nn Address line 00001 nn Xx REG CE 2 nn A0 90 80 00 00002 Data line WW ETT I RM RN data rr read data 0003 j Spakrline _______ line 00004 40 80 E ZEE Wait line 40 lt lt 80 00005 Other lines BSY BVD1 21 06 NOTE Select the subtest numberOlIthe following message will appear Test slot number select 1 51010 2 slotl 0 51010 amp 1 2 3 32 File No 960 140 NOTE Subtests 02 and 04 are for Enhanced Port Replicator For procedures on those subtests refer to Enhanced Port Replicator manual Subtest 03 RGB monitor ID test Connect a wrap around Board to the external monitor port to test the RGB monitor ID Subtest 066 ZV Port wrap around Use the PC Card ZV Test Card Rev B or higher to conduct the test The video and audio interfaces will be tested When the video test is initiated the board automatically writes data AAA Ah and 5555h alternately to address A000 0000h The data written first is determined randomly and has no effect on the validity of the test After the video test is run the audio interface is tested The test emits IKHz sine wave sound on the left speaker and 2kHz sine wave sound on the right speaker 3 33 File No 960 140 3 15 Sound Test To execute the sound test select 12 from the DIAGNOST
81. ing suspend conventonal memory Fw Bxneimemoysedemenr 2 ran PoP Ran O OOOO SOS 1 23 File No 960 140 Procedure 4 Diagnostic Test Program Execution Check Execute the following tests from the Diagnostic Test Menu Refer to Chapter 3 Tests and Diagnostic for more information on how to perform these tests System test Memory test Keyboard test Display test Floppy Disk test Printer test ASYNC test Hard Disk test Real Timer test 10 NDP test 11 Expansion test 12 Sound test If an error is detected during these tests go to Procedure 5 Procedure5 Replacement Check The system board may be damaged Disassemble the computer following the steps described in Chapter 4 Replacement Procedures and replace the system board with a new one 1 24 File No 960 140 1 5 FDD Troubleshooting This section describes how to determine if the FDD is functioning properly Perform the steps below starting with Procedure 1 and continuing with the other procedures as required Procedure 1 FDD Head Cleaning Check Procedure 2 Diagnostic Test Program Execution Check Procedure 3 Connector Check and Replacement Check Procedure 1 FDD Head Cleaning Check FDD head cleaning is one option available in the Diagnostic Program A detailed operation is given in Chapter 3 Tests and Diagnostics Insert the Diagnostics Disk in the computer s floppy disk drive turn
82. ing the SETUP Window 1 Press End to accept the changes you made If the changed item does not require the system to reboot the following message displays Are you sure Y N If the changed item requires the system to reboot the following message displays Are you sure Y N The changes you made will cause the system to reboot 2 To make other changes press N Repeat the steps above 3 accept the changes press Y NOTE You can press ESC to quit at any time without saving changes SETUP asks you to confirm that you do not want to save your changes The Factory Preset Configuration When you access SETUP the current configuration displays 1 To show the factory preset configuration press Home 2 accept the default settings press End and then press Y NOTE When you execute the default setting the following settings are not changed HDD Mode Password Sound System I O Address Interrupt Level DMA Write Policy 3 59 File No 960 140 SETUP Options The SETUP screen is divided into functionally related groups This section describes each group and its options 1 3 60 Memory This option displays the computer s memory a Total This field displays the total amount of memory installed and is automatically calculated by the computer You cannot change this value Password This field enables or disables the internal video controller Registered The user password has been registere
83. iquid crystals to freeze lose their elasticity or otherwise suffer damage 9 Do not disassemble the LCD module Disassembly can cause malfunctions 4 File No 960 140 10 If you transport the module do not use packing material that contains epoxy resin amine or silicon glue alcohol or oxime These materials can release gas that can damage the panel s polarization A 5 File No 960 140 A 6 File No 960 140 Appendix Board Layout B 1 System Board Front View N A Figure B 1 Board layout front B 1 File No 960 140 B 2 System Board Back View Figure B 2 Board layout back 3 File No 960 140 Table B 1 System board ICs and connectors front me Table B 2 System board ICs and connectors back wee 3 File No 960 140 B 4 File No 960 140 Appendix Pin Assignments System Board C 1 PJ1 Expansion Memory Connector 140 pin Table C 1 Expansion Memory connector pin assignments 140 1 3 11 12 21 GND 2 GND m owes o 5 easton 27 BBV 28 mass 3 wes wes 3 35 GND GND 45 B3V __ 46 C 1 File No 960 140 Table C 1 Expansion Memory connector pin assignments 140
84. le No 960 140 5 Continue along the sides three latches on each side and the bottom three latches Figure 4 17 Removing the display mask Installing the Display Mask To install the display mask follow the steps below See figures 4 16 and 417 l Set the display mask in place and fasten the latches starting with the three at the bottom Continue along the sides three latches on each side and the top four latches Mount the AccuPoint cap Secure the display mask with two M2 5x5 screws Secure the two mask seals 4 21 File No 960 140 49 FL Inverter Board Removing the FL Inverter Board To remove the FL inverter board follow the steps below See figures 4 18 to 4 19 1 Remove one 2 5 silver screw securing the FL inverter board 2 Slide the FL inverter board slightly to the right to clear a smalllatch and lift out the board being careful not to apply tension to the cables Figure 4 18 Removing the FL inverter board 3 Carefully turn the FL inverter board over and disconnect thedisplay cable from CN1 and the FL cable from CN2 4 22 File No 960 140 Figure 4 19 Disconnecting the display cable Installing the FL Inverter Board To install the FL inverter board follow the steps below See figure 4 18 to 4 19 1 Connect the FL cable to CN1 on the FL inverter board and the display flexible cable to CN2 2 Place the FL inverter board in position and secure it withone 2 5 silver screw
85. lexible cable eene en 4 32 Removing the cable iet et e rea SO RR SERA SENI SERA a 4 33 Removing nine SCIeWS edidic il 4 35 Removing the upper iiit 2er 4 36 Removing the adapter 4 36 File No 960 140 4 1 Overview The disassembly and replacement procedures for units that can be replaced in the field FRUs are described in this section It may not be necessary to remove all the FRUs in order to replace one FRU The chart below shows a guideline on which FRUs are to be removed before removing a certain FRU Be sure to remove the battery pack first In repairing an FRU suspected to be the cause of a computer malfunction determine FRUs to be removed according to the flow of the chart below 4 1 Battery packiOptional PC card 4 13 ue eu 4 2 HDD 4 8 Display mask 4 3 Optional memory module 4 9 FL inverter board 44 Keyboard 4 10 LCD moduk 4 5 Deplay assembly 4 11 Speaker power supply switch boardi 4 6 ATC battery AccuPoirt board 4 7 System boardiheat sing 414 LCD flexble cable microphone The example at the right forthe display assembly ava 4 ____ for the display assembly ol A aati bo forthe FL inverter board The display assembly is overlapped by the keyboard mean which is overlapped by 44 Keyboard 1410100 module optional
86. llowing instructions WARNING Use only batteries recommended by Toshiba Installation of the wrong battery could cause the battery to explode and cause injury or other damage 1 Switch the computer off Disconnect the AC adapter and all external devices from the computer 2 Align the battery with the guide rails 3 Push the battery into position The release latch will automatically lock when the battery is fully seated Removing the Optional PC Card To remove the optional PC card check that the computer is in boot mode and observe the following procedures 1 Switch the computer off 2 Slide the PC card release switch to the right The right switch releases the bottom card and the left switch releases the top card 4 The PC card will pop out slightly Hold it securely and pull it out 4 6 File No 960 140 Installing the Optional PC Card To install the optional PC card follow the steps below NOTE Before installing the PC card make sure that the computer is in boot mode 1 Switch the computer off 3 Insert the PC card Carefully push it in place 4 Check that when the PC card is fully inserted the PC card release lever moves to the left The right lever releases the bottom card and the left lever releases the top card 4 7 File No 960 140 4 2 HDD CAUTION Be very careful not to press on the top or bottom of the HDD Pressure can destroy data or damage the drive Removing th
87. loppy disk in the following formats a 2DD Double sided double density double track 96 135 TPI MFM mode 512 bytes 9 sectors track b 2HD Double sided high density double track 96 135 TPI MFM mode 512 bytes 18 sectors track 2 COPY This program copies data from a source floppy disk to a target floppy disk 3 DUMP This program displays the contents of the floppy disk and the designated sectors of the hard disk on the display 4 HDD ID READ This program reads the hard disk ID and displays the hard disk ID serial numberand others hard disk information 3 50 File No 960 140 3 22 2 Operations 1 Selecting 7 from the DIAGNOSTIC MENU and pressing Enter displays the following message FDD UTILITIES 1 FORMAT 2 COPY 3 DUMP 4 HDD ID 9 EXIT TO DIAGNOSTICS MENU 2 FORMAT program a b c d e Selecting FORMAT displays the following message DIAGNOSTICS FLOPPY DISK FORMAT VX XX Drive number select 1 A 2 B a Select a drive number to display the following message Type select 0 2DD 3 2HD Select a media drive type number and press Enter A message similar to the one below will display Warning Disk data will be destroyed Insert work disk into drive A Press any key when ready Remove the Diagnostics Disk from the FDD insert the work disk and press any key
88. lowing functional tests SYSTEM TEST MEMORY TEST KEYBOARD TEST DISPLAY TEST FLOPPY DISK TEST PRINTER TEST ASYNC TEST HARD DISK TEST REAL TIMER TEST NDP TEST EXPANSION TEST SOUND TEST 3 1 File No 960 140 You will need the following equipment to perform some of the Diagnostic test programs The Diagnostics Disk all tests A formatted working disk for the floppy disk drive test all tests A cleaning kit to clean the floppy disk drive heads Head Cleaning A PC card wraparound connector for the I O card test Expansion test Rev B or higher A printer wraparound connector for the printer wraparound test Printer test External FDD tests Serial port wraparound connector AS YNC test I O Adapter OOOO OOOO The following sections detail the tests within the Diagnostic Test function of the DIAGNOSTIC TEST MENU Refer to Sections 3 18 through 3 24 for detailed information on the remaining Service Program Module functions 3 2 File No 960 140 3 2 Executing the Diagnostic Test Toshiba MS DOS is required to run the DIAGNOSTICS PROGRAM To start the DIAGNOSTIC PROGRAM follow these steps Connect a wraparound connector to the I O adapter s printer port and RS 232C port Connect the I O adapter to the computer Next connect the FDD and insert the diskette containing the test program 2 Turn on the computer and the test program will execute and the test menu will
89. ly aligned and maximum visibility of the display is maintained 4 2 careful to align the holes at the four corners of the LCD module with the corresponding holes in its cover before securing the module with screws Do not force the module into place because stress can affect its performance Note The panel s polarized surface is easily scarred so handle it carefully A 1 File No 960 140 3 Ifthe panel s surface gets dirty wipe it with cotton or a soft cloth If it is still dirty try breathing on the surface to create a light condensate and wipe it again If the surface is very dirty use a CRT cleaning agent Apply the agent to a cloth and then wipe the panel s surface Do not apply cleanser directly to the panel 4 If water or other liquid is left on the panel s surface for a long period it can change the screen s tint or stain it Be sure to quickly wipe off any liquid A 2 File No 960 140 5 Glass is used in the panel so be careful not to drop it or let it strike a hard object which could cause breakage or cracks 6 CMOS LSI circuits are used in the module so guard against damage from electrostatic discharge Be sure to wear a wrist or ankle ground when handling the module A 3 File No 960 140 7 Do not expose the module to direct sunlight or strong ultraviolet rays for long periods 8 Do not store the module at temperatures below specifications Cold can cause the l
90. m the FDD Troubleshooting Procedures in Section 2 5 If an error is detected on the hard disk test perform the HDD Troubleshooting Procedures in Section 2 6 File No 960 140 If an error is detected on the keyboard test perform the Keyboard Troubleshooting Procedures in Section 2 7 If an error is detected on the display test perform the Display Troubleshooting Procedures in Section 2 9 1 5 File No 960 140 1 3 Power Supply Troubleshooting The power supply controls many functions and components To determine if the power supply is functioning properly start with Procedure 1 and continue with the other Procedures as instructed The procedures described in this section are Procedure 1 Power Status Check Procedure 2 Error Code Check Procedure 3 Connection Check Procedure 4 Quick Charge Check Procedure 5 Replacement Check Procedure 1 Power Status Check The following icons indicate the power supply status Battery icon DC IN icon The power supply controller displays the power supply status through the Battery and the DC IN icons as listed in the tables below Table 2 1 Battery icon Battery icon Power supply status Lights orange Quick charge Lights green Battery is fully charged and AC adapter is connected Blinks orange The battery level becomes low while operating the computer on batter even intervals power 1 Flashes orange The power switch is pressed on when the battery level is low2
91. mbling the computer Screw sizes are shown with explanations in the figures Be careful not to be injured by the many sharp edges and angles of the screws After replacing the FRU check its operation and make sure that the computer operates normally Proceed chapter 4 2 or more after removing all items which are described in this section except otherwise noted File No 960 140 Disassembly Procedures There are two basic types of cable connectors Pressure plate connector Normal pin connector To disconnect the cable from a pressure plate connector lift the tab on either side of the plastic pressure plate of the connector and gently pull the cable out from the connector To connect the cable to a pressure plate connector lift the pressure plate high enough and slide the cable into the connector Push the pressure place at both ends so the plate and connector will be at the same height then fasten the cable at the correct position Hold the cable gently pull it and make sure that the cable is securely in place If the cable slips out of the connector make that the pressure plate is lifted high enough and connect the cable again Standard pin connectors are used for all other cables The cables can be connected to and disconnected from these connectors by simply pulling or pushing Reassembly Procedures To reassemble the computer after disassembling it and repairing the parts that caused its malfunction observe the gener
92. memory module i HDD and battery 4 11 Speaker power supply switch board pack optional PC card The FL inverter board is overlapped by the display 4 7 System boardiheat sink mask and battery PC card sot pack optional PC card Display assembly Feen FL inverter board 4 1 File No 960 140 Before Beginning Work Observe the following before beginning work procedures must begin with the removal of the AC adapter battery pack and any PC cards 1 2 10 11 4 2 Do not disassemble the computer unless a malfunction occurs Use the specified tools Use and storage require a work environment free of the following Dust and pollutants e Static electricity e Extremely high or low temperature or humidity Conduct the diagnostic test described in Chapter 2 of this manual to identify which FRU is the cause of the malfunction Do not perform unnecessary operations Observe the disassembly and installation procedures described in this manual The parts removed from the computer must be kept at a safe place away from the computer free of damage and not impeding the work Many screws are removed and parts are replaced in disassembling the computer Keep the screws in a safe place in such a way that you will be able to easily identify which screw belongs to which part Use the specified screws and mount the parts in the specified positions in reasse
93. n Description tete ERE REN 3 56 3 232 Operations a cuia ee IS EDO CREER 3 57 324 SETUP aad DI Fo n hentai dS 3 58 324 41 x Eunetien D scription ers eor tees an rael 3 58 3 24 2 Accessing the SETUP Program coit eI pere ed este Bat 3 59 Tables Table 3 1 Subtest names xa as ua Aha 3 7 Table 3 2 Error codes and error status names 3 36 Table 3 3 Hard disk controller status register contents sene 3 39 Table 3 4 Error register Contents u a ee nn 3 40 Table 3 5 Hard disk formatting enne 3 42 File No 960 140 31 The Diagnostic Test This chapter explains how to use the Diagnostic Test program to test the functions of the computer s hardware modules The Diagnostics Program is stored on the Diagnostic Disk The Diagnostic Test consists of 12 programs that are grouped into the Service Program Module DIAGNOSTIC TEST MENU NOTES To start the diagnostics follow these steps 1 Check all cables for loose connections 2 Exit any application you may be using and close Windows The DIAGNOSTIC MENU consists of the following functions DIAGNOSTIC TEST HARD DISK FORMAT HEAD CLEANING LOG UTILITIES RUNNING TEST FDD UTILITIES SYSTEM CONFIGURATION EXIT TO MS DOS SETUP The DIAGNOSTIC TEST MENU contains the fol
94. n Time Between Failures for each component Table H 1 MTBF Time hours LCD 50 000 Keyboard 37 000 H 1 File No 960 140 H 2
95. n be turned on and off Provides more accurate detection of a low battery Calculates the remaining battery capacity The embedded controller operates at 2MHz and has the following functions l 2 Controls ACPI in Windows 98 Monitors the computer s temperature Controls power supply to the docking port General purpose port Cie INU ZOU ICTU The power supply output rating is specified in Table 1 5 Table 1 5 Power supply board output rating Power supplied Yes No vonage Suspend Power of no paner CPU 1 8 NO NO NO CPU CLKGEN System 2 5 Controller GA CLKGEN 3 3 System Controller GA PC 3 3 Card Slot Controller VO PC Card Controller GA DRAM VGA Controller PC Card Slot Flash Memory KBC IPSC LCD Panel HDD LEDs Sound E2PROM GA KB Mouse Port PSC Embedded Controller RTC ric INU JOU I U 1 8 Batteries The computer has tow types of batteries Main battery pack RTC battery The battery specifications are listed in Table 1 6 Table 1 6 Battery specifications Battery name Material Output voltage Capacity Main battery Lithium lon 10 8 V 1 200 mAh 2 400 mAh High capacity RTC battery Nickel Metal Hydride 2 4 V 11 mAh 1 8 1 Main Battery The removable main battery pack is the computer s main power source when the Universal AC Adapter is not connected The main battery pack maintains the state of the com
96. ng up 63h B3V dose not start up when the computer is suspended 1 9 File No 960 140 B2V output Emrcode O B2V voltage is over the limit 2 88V B2V voltage is under the limit 2 13V when power supply is turned on 72h B2V voltage is under the limit 2 13V when the computer is booting up B2V voltage is over the limit 2 13V when power supply is turned off output Check 2 Check 3 Check 4 Check 5 Emrcode B1V voltage is over the limit 2 16V B1V voltage is under the limit 1 44V when power supply is turned on 82h B1V voltage is under the limit 1 44V when the computer is booting up B1V voltage is over the limit 1 44V when power supply is turned off In the case of error code 10h Make sure the AC adapter is firmly connected to the computer is DC IN socket and to power source If this cables are connected correctly go to the following step Replace the AC adapter with a new one If the error still exists go to Procedure 5 In the case of error code 20h Make sure the battery pack is correctly installed in the computer If the battery pack is correctly installed go to the following step Replace the battery pack with a new one If the error still exists go to Procedure 5 In the case of error code 21h Go to Procedure 3 When for any other error go to Procedure 5 File No 960 140 Procedur
97. nitialization PCI initialization Detection of VGA controller on ISA Set CMOS initialize register Printer port wraparound connector detection CMOS data initialization for APM Set divider control register Set counter control register Set configuration number and sleep counter initialization File No 960 140 Table 2 3 Printer port LED boot mode status 3 5 07h PnP initialization PnP initialization information 76h Password initialization Password initialization TSETUP TSETUP hardware configuration Issuing power off grant command Set CPU speed Set speaker Set battery alarm Set panel close alarm Set panel power on off PnP system resource configuration Serial port configuration Serial port configuration PC card configuration Modem port configuration PnP automatic configuration PC card initialization PnP automatic configuration EC and PSC configuration Grant embedded controller SMI SLP TYP setting Power supply microprocessor configuration PCI device initialization 1 Ensure work area for automatic configuration Initialization of work area Create reserved resource map PCI device initialization 2 Add reserved resource for primary display device to map PCI device initialization 3 Add reserved variable resource to map PCI device initialization 4 PCI automatic configuration Special process after PCI configuration 1 20 File No 960 140 Table 2 3 Printer port LED boot mode stat
98. nt Procedures File No 960 140 File No 960 140 Chapter4 Contents 4 1 OVERVIEW ote deciso aniline leid a EO te ae ou OU d 4 1 4 2 HDD Essens are er er 4 8 4 3 Optional Memory Module ERR ieh he 4 10 44 sio ite iin dci dei ae Ends 4 12 4 5 Display ASSET dedu de 4 13 4 6 RTC Batterye 4 17 4 7 System Board Heat Sink and PC Card 51 4 18 4 6 Display Mask nase sipa 4 20 49 Fl Inverfer 4 22 410 ECD enei ee ie ob RA 4 24 4 1 Speaker Power Switch Board and AccuPoint 22 4 27 4 12 LCD Flexible Cable and nissen an 4 30 4 15 VO Adapter Board ke na a 4 35 Figures Figure 4 1 Removing HDD COVeE ns tod ee 4 8 Figure 4 2 Removing the ida er ente e d e ead 4 9 Figure 4 3 Removing the HDD 4 9 Figure 4 4 Removing the keyboard 4 10 Figure 4 5 Lifting up keyboard tee eie te HR ai each 4 10 Figure 4 6 Removing the optional memory module eene 4 11 Figure 4 7 Removing the keyboard ad o HU ed ee etaed eae dde 4 12 Figure 4 8 Removing the metal cover eie eiie cette desti ibn 4 13 Figure 4 9 Removin
99. o o 22 _ EN NEN 13 o GND p a C 8 File No 960 140 C 7 PJ303 PC Card Slot Connector 150 pin Table C 7 PC card slot connector pin assignments 150 pin 1 3 7 ww _ uova oac C 9 File No 960 140 C 10 Table C 7 PC card slot connector pin assignments 150 pin 2 3 Sonainame 10 Pre Sionainame 10 vo s ss aoasas roo wo acsrscso 1 es acanar wo 0 ew s wo _ vo wo seme ew m ee scum 77 scam vo s swomam wo ew es scenam vo ss scenes wc scena vo oo s swowam se e es scenam vo ss swiss sr vo s wo we s wo we e sconto 1 scoevseo am o ne ww wwe ws 1 screoveo wr o eo File No 960 140 Table C 7 PC card slot connector pin assignments 150 pin 3 3 Sonainame 10 Pre Sionainame 10 ws sw vo ws
100. oard brace Install removed components File No 960 140 4 5 Display Assembly Removing the Display Assembly To remove the display assembly follow the steps below See figures 4 8 to 411 1 Lift out the metal cover CAUTION The metal cover is thin so be careful not to cut yourself on the edge BG gt Ehe Sn XXXTWEXXXXXxXxX en cA XXXXXXXXXXXXXXxxxu XXXXX XXXXEXX XXXXX XXXAMXX xxxxx XXXXXXXXXXXXXX MA y XX a imm Figure 4 8 Removing the metal cover 2 Disconnect the display flexible cable from PJ250 on the system board 3 Remove insulator covering the RTC battery cable and lift the battery cable out of its groove 4 13 File No 960 140 Figure 4 9 Removing the display flexible cable 4 Close the display turn the computer upside down and removefive M2x14 silver screws Figure 4 10 Removing five screws 5 the computer right side up and open the display 6 Disconnect the microphone cable from PJ470 on the system board and lift off the display assembly 4 14 File No 960 140 CAUTION Make sure the flexible cable has been removed from PJ470 on the system board before removing the display assembly An attempt to forcibly remove the display assembly when the flexible cable is still connected to PJ470 could damage the cable EXXXXXXXXXXXXXXXXXXXXXXxXX HE Xm XXXXXXXXXX
101. or LCD The display panel contains a TFT color LCD module a fluorescent lamp FL andan FL inverter board 1 6 1 TFT Color LCD Module The LCD enables display of up to 256K colors at a resolution 800 x 480 pixels The LCD is shown in Figure 1 7 Specifications are listed in Table 1 3 Figure 1 7 TFT color LCD Table 1 3 LCD specifications Number of Pixels pixels 800x480 Dot pitch mm 0 192x0 192 Display area 153 6 H x92 16 V Contrast 1 150 Typ INU YOU 14U 1 6 2 FL Inverter Board The FL inverter board supplies high frequency current to light the LCD s Fluorescent Lamp Specifications for the FL inverter are listed in Table 1 4 Table 1 4 FL inverter board specifications _ Specifications Input Voltage V 5 Power W 2 3 Output Voltage Vrms 800 Current mA 2 0 to 3 5 NOTE The FL currents at power on are Level 3 3 5 Level 2 2 9mA Level 1 2 6mA Level 0 2 0mA INU JOU I U 1 7 Power Supply The power supply supplies ten kinds of voltages to the system board has one microprocessor and it operates at 4M Hz It performs the following functions l 2 Determines if the AC adapter or battery is connected to the computer Detects DC output and circuit malfunctions Controls the battery icon and DC IN icon Turns the battery charging system on and off and detects a fully charged battery Determines if the power ca
102. oting Procedures message displayed in section 2 9 Hf the message displays type the password then press Enter i i Perform the Hard Disk Drive A ig Tmubleshaaoting P ures 3 i in section 2 5 Yes Figure 2 1 Troubleshooting flowchart 1 2 1 3 File No 960 140 Perform the Keyboard Troubleshooting Fogedures in section 2 7 Do typed charactere appear co mecth Na Insert the diagnostics disk inta then run the diagnostics test pmgram Perform the Floppy Disk Drive Troubleshooting Procedures in Section 2 5 the diagnostics Est loaded Yes an enor After confi mning which Yes diagnostic test has detected an eror the appro priate pocedues outlined Figure 2 1 Troubleshooting flowchart 2 2 If the diagnostics program cannot detect an error the problem may be intermittent The Running Test program should be executed several times to isolate the problem Check the Log Utilities function to confirm which diagnostic test detected an error then perform the appropriate troubleshooting procedures as follows l If an error is detected on the system test memory test display test async test printer test expansion test sound test or real timer test perform the System Board Troubleshooting Procedures in Section 2 4 If an error is detected on the floppy disk test perfor
103. ption sets the DMA channel for the Windows Sound System recording and Sound Blaster Pro The available settings are Channel O default Channel 1 Channel 3 NOTE When you set the WSS Play DMA and WSS Rec amp SBPro DMA option to the same channel the WSS Play DMA option will display Same as Playback Control I O Address You cannot change this value MPU401 MIDI VF You cannot change this value 9 Display a VGA Segment Address This option lets you set the VGA Segment Address C000h Default E400h 3 70 File No 960 140 10 PCI Bus This option displays the interrupt request level for the CardBus in the computer It is for information only and cannot be changed 11 PC Card This option lets you set the PC Card Controller mode Auto Selected Use this setting for all PC Card if you are using Windows 95 Default Card Bus 16 bit If the card does not work properly with the Auto Selected setting use this setting for Card Bus PC card PCIC Compatible If the card does not work properly with the Auto Selected and CardBus 16 bit setting use this setting for 16 bit PC Card 12 Drives I O This item display the installed hard disk drives Built in HDD or no drive It appears only in TSETUP Setting for Built in HDD Primary IDE 1F0H IRQ14 The built in HDD is ready for use Not Used Disables the built in HDD 3 71 File No 960 140 3 72 File No 960 140 Chapter 4 Replaceme
104. puter when the computer enters in resume mode 1 8 2 Battery Icon The icon shows the status of the removable battery pack The status of each can be determined by color Orange The battery is being charged Universal AC Adapter connected Green The battery is full charged Universal AC Adapter connected Blinking orange battery is low when the power is on No light Under any other conditions the LED does not light INU ZOU I U 1 8 3 Battery Charging Control Battery charging is controlled by a power supply microprocessor that is mounted on the system board The microprocessor controls whether the charge is on or off and detects a full charge when the Universal AC Adapter and battery are connected to the computer The system charges the battery using quick charge or trickle charge Quick Battery Charge The battery quick charges when the Universal AC Adapter is connected and the system is powered off or in suspend mode Table 1 7 Time required for quick charges If any of the following occurs the Main Battery quick charge process stops 1 The Main Battery becomes fully charged 2 The AC adapter or Main Battery is removed 3 The Main Battery or output voltage is abnormal Trickle Battery Charge When the main battery is fully charged and the AC adapter is attached the microprocessor automatically changes quick charge 1 or 2 to trickle charge 1 8 4 RTC Battery The RTC battery provides power to keep
105. quest check Canceling power down of L2 cache Enabling CMOS access Port 25h unlock Special register initialization Memory check CMOS check and initialization ROM to RAM copy Toshiba register initialization 1 Toshiba register initialization 2 DRAM size check Memory structure configuration SM RAM stack area test Enabling cache CMOS access test CMOS checksum CMOS data initialization Set DRAM size Resume branch check CMOS error check Resume status check SM RAM checksum System BIOS checksum Toshiba register initialization 3 Set SM RAM base address Grant SMI KBC initialization File No 960 140 Table 2 3 Printer port LED boot mode status 2 5 PIT initialization Start resume sequence Resume error process SM RAM initialization ROM to RAM copy and enabling shadow RAM Toshiba register initialization 3 SMI initialization SM RAM base rewrite KBC initialization 2 Set SMI handler Grant SMI Estimate operation clock speed Grant all SMIs Measure for miscellaneous GA Date check for alarm power on Canceling HDD hardware reset Set COMS default configuration when CMOS error detected KBC initialization VGA initialization VGA controller power off and reset control Sound initialization Sound controller initialization PIT initialization PIT test and initialization PIC initialization PIC initialization PIC test CPU type discrimination Self test control status initialization PCI i
106. r and follow the directions on the screen The hard disk test contains tensubtests that test the hard disk drive functions The contents of the hard disk will be erased when subtest 02 03 04 05 06 06 09 or 10 is executed Before running the test the customer should transfer the contents of the hard disk to floppy disk If the customer has not or cannot perform the back up create back up disks as described below Check to see if the Microsoft Create System Disks Tools MSCSD EXE still exists in the System Tools Folder This tool can be used only once If it exists use it to back up the pre installed software then use the Backup utility in the System Tools folder to back up the entire disk including the user s files Refer to the operating system instructions The following messages will appear after selecting the hard disk test from the DIAGNOSTIC TEST MENU Answer each of the questions with an appropriate response to execute the test HDD test parameters Test drive number 1 HDC F W error retry Data compare error dump no Detail status display no Select items Enter Finish Esc Exit F5 Set default 1 Select the hard disk drive number to be tested Test drive number HDD 1 HDD 2 HDD1 amp 2 2 This message is used to select the retry operation when the hard disk controller detects an error Select yes or no HDC F W error retry yes no 3 This message is used to select the error dump
107. r the pointing device with a new one If the FLIMC board or the pointing device is disconnected firmly connect it Perform Procedure 1 again If the error still exists perform Check 2 Check 2 The System board may be damaged Replace the System board with a new one Refer to Chapter 4 Replacement Procedures for more information 1 36 File No 960 140 1 9 Display Troubleshooting This section describes how to determine if the computer s display is functioning properly Start with Procedure 1 and continue with the other procedures as instructed Procedure 1 Diagnostic Test Program Execution Check Procedure 2 Connector and Replacement Check Procedure 1 Diagnostic Test Program Executi on Check The Display Test program is stored on the computer s Diagnostics disk This program checks the display controller on the system board Insert the Diagnostics disk in the computer s floppy disk drive turn on the computer and run the test Refer to Chapter 3 Tests and Diagnostics for details If an error is detected go to Procedure 2 If an error is not detected the display is functioning properly 1 37 File No 960 140 Procedure2 Connector and Replacement Check The FL FL inverter board LCD module LCD flat cable and systemboard are connected to the display circuits Any of these components may be damaged Refer to Chapter 4 Replacement Procedures for instructions on how to disassemble the computer and then perform the following
108. race and plastic support then secure the brace with one M2x4 screw Cover the microphone cable with insulator Seat the LCD module in the top cover Secure the LCD flexible cable with two strips of tape Secure the display hinges with two M2 5x5 screws and secure the LCD flexible cable with one M2x5 silver screw Install the removed components 4 35 File No 960 140 4 13 I O Adapter Board Removing the I O Adapter Board To remove the I O adapter board follow the steps below See figures 4 30 to 4 32 1 Remove the I O adapter from the computer Disconnect all the external cables from the I O adapter 2 Turn the I O adapter upside down and remove three 2 5 silver screws from the back and six 2 5 silver screws from the bottom Figure 4 30 Removing nine screws 3 Release one latch securing the left side two latches securing the front edge and one latch securing the right side and then remove the upper cover Figure 4 31 Removing the upper cover 4 Remove four M2x4 screws securing the I O adapter board and lift out the board 4 36 Figure 4 32 Removing the I O adapter board File No 960 140 4 37 File No 960 140 Installing the I O Adapter Board To install the I O adapter board follow the steps below See figures 4 30 to 432 1 Seat the I O adapter board and secure it with four M2x4 screws 2 Seat the top cover on the bottom cover 3 Turn the I O adapter upside down and secur
109. rdware service maintenance for the Toshiba Personal Computer Libretto 100CT The procedures described in this manual are intended to help service technicians isolate faulty Field Replaceable Units FRUs and replace them in the field SAFETY PRECAUTIONS Four types of messages are used in this manual to bring important information to your attention Each of these messages will be italicized and identified as shown below DANGER Danger indicates the existence of a hazard that could result in death or serious injury if the safety instruction is not observed WARNING Warning indicates the existence of a hazard that could result in bodily injury if the safety instruction is not observed CAUTION Caution indicates the existence of a hazard that could result in property damage if the safety instruction is not observed NOTE A Note contains general information that relates to your safe maintenance services Improper repair of the computer may result in safety hazards Toshiba requires service technicians and authorized dealers or service providers to ensure the following safety precautions are adhered to strictly Be sure to fasten screws securely with the right screwdriver If a screw is not fully fastened it could loosen and create a short circuit which could cause overheating smoke or fire If you replace the battery pack RTC battery or backup battery be sure to use only the same model battery or an equivalent battery
110. recommended by Toshiba Installation of the wrong battery can cause the battery to explode File No 960 140 The manual is divided into the following parts Chapter 1 Chapter 2 Chapter 3 Chapter 4 Appendices Hardware Overview describes the system unit and each FRU Troubleshooting Procedures explains how to diagnose and resolve FRU problems Tests and Diagnostics describes how to perform test and diagnostic operations for maintenance service Replacement Procedures describes the removal and replacement of the FRUs The eight appendices describe the following Handling the LCD module Board layout Pin assignments Keyboard scan character codes Key layout Wiring diagrams BIOS Rewrite Procedures Reliability 060600090 File No 960 140 Conventions This manual uses the following formats to describe identify and highlight terms and operating procedures Acronyms On the first appearance and whenever necessary for clarification acronyms are enclosed in parentheses following their definition For example Read Only Memory ROM Keys Keys are used in the text to describe many operations The keytop symbol as it appears on the keyboard is printed in boldface type Key operation Some operations require you to simultaneously use two or more keys We identify such operations by the keytop symbols separated by plus sign For example Ctrl 4 Pause Break means you must hold down Ctrl and
111. rge the battery pack If the battery pack is still not charged replace the battery pack with a new one Check 4 The battery s temperature is too hot or cold Return the temperature to a normal operating condition If the battery pack still is not charged replace the battery pack with a new one Check 5 Goto Procedure 5 File No 960 140 Procedure5 Replacement Check The AC adapter may be disconnected or damaged Disassemble the computer following the steps described in Chapter 4 Replacement Procedures After checking the connection perform the following checks Check 1 Replace the AC adapter with a new one If the problem still exists go to Check 2 Check 2 Replace the system board with a new one Refer to Chapter 4 for instructions on how to remove and replace the system board File No 960 140 1 4 System Board Troubleshooting This section describes how to determine if the system board is defective or not functioning properly Start with Procedure 1 and continue with the other procedures as instructed The procedures described in this section are Procedure 1 Message Check Procedure 2 Printer Port LED Check on Boot Mode Procedure 3 Printer Port LED Check on Resume Mode Procedure 4 Diagnostic Test Program Execution Check Procedure 5 Replacement Check File No 960 140 Procedure 1 Message Check When the power is turned on the system performs the Initial Reliability Test IRT installed in the BIOS ROM Th
112. rites specified 2 byte data to all of the cylinders on the HDD W R C specified address This subtest writes data to a specified cylinder and head on the HDD then reads the data and compares it to the original data File No 960 140 3 12 Real Timer Test To execute the Real Timer Test select 9 from the DIAGNOSTIC TEST MENU press Enter and follow the directions on the screen The real timer test contains threesubtests that test the computer s real timer functions Move the highlight bar to the subtest you want to execute and press Enter Subtest 01 Real time A new date and time can be input during this subtest To execute the real time subtest follow these steps 1 Select subtest 01 and the following message will appear Current date XX XX XXXX Current time XX XX XX Enter new date PRESS ENTER KEY TO EXIT TEST 2 If the current date is not correct input the correct date at the Enter new date prompt and press Enter The following prompt will appear Enter new time 3 f the current time is not correct input the correct time in 24 hour format Pressing Enter toggles between the time and the date To exit press Ctrl 4 Break Subtest 02 Backup memory This subtest performs the following backup memory check Writes 1 bit of data to address Olh through 80h Writes 1 bit of off data to address OEh through 80h Writes the data pattern AAh and 55h to the 114 by
113. rk disk is not loaded an error will be generated during the FDD testing 1 Remove the diagnostics disk from the floppy disk drive and insert the work disk 2 Select 6 from the Diagnostic Menu and press Enter the following message displays Printer wrap around test Y N Selecting Y yes executes the printer wraparound test A printer wraparound connector must be connected to the parallel port of the computer to properly execute this test 3 Select Y or N and press Enter The following message will appear Serial wrap around test Y N Selecting Y yes executes the ASYNC wraparound test An RS 232 C wraparound connector must be connected to the serial port of the computer to properly execute this test 3 48 File No 960 140 4 Select Yes or No and press Enter The following message will appear Mount the work disk s on the drive s then press Enter key Warning The contents of the disk s will be destroyed 5 This program is executed continuously To terminate the program press Ctrl Break 3 49 File No 960 140 3 22 Floppy Disk Drive Utilities 3 22 4 Function Description This function formats the FDD copies the floppy disk and displays the dump list for both the FDD and HDD 1 FORMAT NOTE This program is only for testing a floppy disk drive The option is different from the Toshiba MS DOS FORMAT command This program can format a 5 25 inch or 3 5 inch f
114. roll Lock Alt Ctrl Left Shift Right Shift PRESS Enter KEY PS 2 Mouse connect check NOTE To execute the PS 2 mouse connect check a PS 2 mouse must be connected to the computer before the power is turned on This subtest checks whether PS 2 mouse is connected or not If this test does not detect an error it returns to the subtest menu If it detects an error the following message appears KBD MOUSE INTERFACE ERROR HALT OPERATION 1 Test end 2 Continue 3 Retry 3 13 File No 960 140 Subtest 04 8 14 Pointing stick This subtest checks the functions of the pointing stick as shown below A IPS stick pressure sensing direction and parameter B IPS switch function check This test reports the pointing stick motion response from the IPS and IPS switch When the stick is pressed towards the upper left the lt POINTING gt display changes according to the following illustration If an IPS switch is pressed the BUTTON display alternates between black and white The parameters appear on the right side of the display Iftwo IPS switches are pressed at the same time the subtest menu displays TPS TEST PROGRAM V1 00 POINTING PARAMETER STATUS 0008h X RATE 0000h Y RATE 0000h EBEN NENNEN lt BUTTON gt BEEREN 1 2 EBENEN EER HEN mu m a m lt lt PRESS
115. s 11 FeatUte CER 1 1 1 2 System Unit Block Diagram cec ire I atu be vei 1 5 1 3 3 3 External oci d t eee en Be e vd ec Hal 1 9 14 oumelr Hard Disk Drives sic ofthc ase SO RR RIEN eae RARE PIS teas 1 10 1 5 1 11 Lo LCD 1 12 1 6 1 1 12 1 6 2 EL Inverter Board uie ub t m nin p p S 1 13 175 ttt 1 14 1 8 B lleries 2 T 1 16 1 8 1 ID 1 16 1 8 2 Battery Icon et e e p ta 1 16 1 8 3 Battery Charging Control aa 1 17 1 8 4 oves vnde ein 1 17 Figures Figure 1 1 Front of the computer ek SEA De ESSEN 1 4 Figure 1 2 System unit configuration edi eor tenes een eh onhlo ni 1 4 Figure 1 3 System unit block 1 5 Figure 1 4 3 5 meh EDD ee atant 1 9 Figure 1 5 2 5 mich HDD oie ee ERI QI ine 1 10 Figure 1 6 Keyboard ED REDIERE ERAS TA URSI I 1 11 Figure 1 7 Color LCD usa LE 1 12 1 iii File No 960 140 Tables Table 1 1 3 5 mch FDD specifications etes etico niece neni eee cedat ede 1 9 Table 1 2 2 5 HDD specifications siio senden ea 1 9 Table 2 5 LCD speerfieations et ae 1 12 Table 1 4 FL inverter board
116. s XXXX No of Heads XXXX XXXX Unformat Bytes Track XXXX XXXX Unformat Bytes Sector XXXX XXXX Sectors Track XXXX XXXX Gap Length XXXX XXXX Sync Bytes XXXX XXXX Reswrved h XXXX Serial No Controller h XXXX Sector Buffers XXXX XXXX ECC Bytes XXXX XXXX Firmware Rev YYYYYY Model No YYYY Reserved h XXXX Double Word Capability XXXX XXXX Press Enter key Press Enter to return to the FDD UTILITIES MENU 3 54 3 23 File No 960 140 System Configuration 3 23 1 Function Description The System Configuration program contains the following configuration information for the computer 90 cd Ow A a E e e N Processor Type Controller MS DOS Version BIOS ROM Version 1st ID 2nd ID Boot ROM Version KBC Version PS Microprocessor Version Total Memory Size Sound System The number of printer ports The number of ASYNC ports The number of math co processor PCMCIA Slot Modem Type The number of floppy disk drives The number of hard disk drives Selectbay Unit Date Time 3 55 File No 960 140 3 23 2 Operations Selecting 8 from the DIAGNOSTIC MENU and pressing Enter displays the following system configuration System Configration Display Ver X XX Machine Name Processor Type XXXX
117. s Error status Pass count HDC status Subtest number Read data Test name Write data Error count Error status name 1 Next 2 Prev 3 Exit 4 Clear 5 Print 6 FD Log Read FD Log Write File No 960 140 2 The error information displayed on the screen can be manipulated by the following number keys The 1 key scrolls the display to the next page The 2 key scrolls the display to the previous page The 3 key returns to the Diagnostic Menu The 4 key erases all error log information in RAM The 5 key out puts the error log information to a printer The 6 key reads the log information from a floppy disk The 7 key writes the log information to a floppy disk 3 In the case of error retry OK a capital will be placed at the beginning of the error status However it is not added to the error count 3 47 File No 960 140 3 21 Running Test 3 21 4 Function Description This function automatically executes the following tests in sequence System test subtest 01 Memory test subtests 01 02 04 and 06 Display test subtest 01 to 05 FDD test subtest 02 HDD test subtests 01 and 05 Real timer test subtest 02 Printer test subtest 03 if selected Async test subtest 01 if selected po d ON Sepe Seba The system automatically detects the number of floppy disk drives connected to the computer for the FDD test 3 21 2 Operations NOTE Do not forget to load a work disk in the FDD If a wo
118. s not detected 1 Write fault condition occurred 0 The hard disk drive heads not settled over a track 1 The hard disk drive heads are settled track 0 Drive is not ready for data transfer 1 Drive is ready for data transfer CORR 0 Not used Corrected data 1 Correctable data error is corrected 0 Not used 1 Index is sensed 0 Normal 1 The previous command was terminated with an error 3 38 File No 960 140 Table 3 4 Error register contents Bt Name BBK1 0 Not used Bad block mark 1 A bad block mark is detected UNC 0 There is no uncorrectable data error Uncorrectable 1 Uncorrectable data error has been detected s 7 IDNF 0 Not used Identification 1 There was no ID field in the requested sector 0 Not used Abort 1 Illegal command error or a drive status error occurred TKOO 0 The hard disk found track 0 during a recalibrate command Track 0 1 The hard disk could not find track 0 during a recalibrate command s wwe 2 3 39 File No 960 140 3 18 Hard Disk Format This command executes hard disk formatting There are two types ofhard disk formatting Low level physical formatting MS DOS logical formatting The hard disk format function performs a low level format of the hard disk and executes the following h
119. se larm Enabled System Heep Enabled Enabled Enables the feature Default Disabled Disables the feature Panel Power On Off This option allows you to automatically turn your computer on or off by opening or closing the display panel If this feature is enabled when the computer is in Resume or Hibernation mode the system is automatically powered off when the display panel is closed and powered on when the panel is opened This option does not appear when the computer is in boot mode Enabled Enables the feature Disabled Disables the feature Default 3 65 File No 960 140 f System Auto Off Use this option to disable or set the duration of the system automatic off function in Resume or Hibernation mode In Boot mode and Hibernation mode it is disabled and does not display Disabled Disables system automatic power off xx Min Automatically turns off power to the system if it is not used for the duration set The duration xx can be set to 10 20 30 40 50 or 60 minutes 7 Configuration This field displays the configuration method You cannot change this value Devices 3 66 File No 960 140 8 ports This option controls settings for the serial and parallel ports and the sound system NOTE Do not assign the same interrupt request level and I O address to the serial port and PC card a Serial Use this option to set the COM level for the serial port The serial port
120. sets the test to run continuously until halted by the user Selecting NO returns the subtest menu to the main menu after the test is complete 3 5 File No 960 140 Selecting YES for ERROR STOP stops the test program when an error is found and displays the operation guide on the right side of the display screen as shown below ERROR STATUS NAME HALT OPERATION 1 Test end 2 Continue 3 Retry These three selections have the following functions respectively 1 Terminates the test program and exits to the subtest menu 2 Continues the test 3 Restarts the test from the error Selecting NO for ERROR STOP keeps the test running even if an error is found Table 3 1 in Section 3 3 lists the function of each test on thesubtest menu Table 3 2 in Section 3 16 lists the error codes and error status for each error 3 6 File No 960 140 3 3 Subtest Names Table 3 1 lists the subtest names for each test program in the DIAGNOSTIC TEST MENU Table 3 1 Subtest names 1 2 Subtest Name ROM checksum Thermistor check Quick charge DMI read Not used DMI write Not used RAM constant data RAM address pattern data RAM refresh Protected mode Memory module Cache memory Test Name SYSTEM MEMORY VRAM read write for VGA Gradation for VGA Gradation amp Mode test for VGA H pattern display BUS Master Transfaer DISPLAY PRINTER Sequential read Sequential read write Random
121. te memory address OEh to 7Fh The subtest then reads and compares this data with the original data To exit press Ctrl Break 3 29 File No 960 140 Subtest 03 Real time carry CAUTION When this subtest is executed the current date and time are erased This subtest checks the real time clock increments making sure the date and time are displayed in the following format Current date as 427311995 Current time 23259558 Pressing Enter displays the following Current date 01 01 1996 Current time 00 00 00 PRESS Enter KEY TO EXIT TEST Press Ctrl Break to exit 3 30 File No 960 140 3 13 NDP Test To execute the NDP test select 10 from the DIAGNOSTICS TEST MENU press Enter and follow the directions on the screen The NDP test contains one subtest that tests the computer s NDP functions Subtest 01 NDP This test checks the following functions of the coprocessor Control word Status word Bus Addition Multiplication Press Ctrl Break to exit 3 81 File No 960 140 3 14 Expansion Test To execute the expansion test select 11 from the DIAGNOSTICS TEST MENU press Enter and follow the directions on the screen NOTE To execute this subtest the PC card wraparound connector is required Subtest 01 PCMCIA wrap around This test checks the following signal line of the PC card slot Address line REG CE 1 CE 2 line Data line Speaker l
122. ter 21 1111 D 1 Key TE Ay OU sioscnsscicactencncustansioncvessecesveccksscenssausesbansadoosuntscsbscnvousssencnsssouscodne E 1 United States US Keyboard us est oe hue ife ee d nea eave E 1 United Kingdom UK Keyboard nr lee E 1 German GRY Keyboard 25s ette p Ken E 2 French PR Key DOS ode E 2 Spanish SP Keyboards e ep epe eatin rd ei pe ERE EUG E 3 IT Keyboard oou eerte EM e uad a RE E 3 App iii File No 960 140 E 7 E 8 Appendix F F 3 F 4 Appendix G Appendix H App iv Scandinavian SC Keyboard sse E 4 Swiss German SL Keyboard retener nta E 4 Wiring DIapraniscoaoogu oni a a PEE VEL ead F 1 Parallel Port Wraparound F 1 Serial Port Wraparound F 1 Serial Port Direct Cable 9 Pin to 9 F 2 Serial Port Direct Cable 9 Pin to 25 Pin esses F 2 BIOS Rewrite 52 5 PP G 1 Reliability H 1 Figures Figure B 1 Figure B 2 Figure E 1 Figure E 2 Figure E 3 Figure E 4 Figure E 5 Figure E 6 Figure E 7 Figure E 8 Figure F 1 Figure F 2 Figure F 3 Figure F 4 Tables Table B 1 Table B 2 Table C 1
123. terleave cylinder and head as indicated in the screen prompt shown below Drive number select 1 1 2 42 gt Interleave number 1 1 8 gt Press Cylinder number Press Head number dd Press Enter to return to the Hard Disk Format menu 3 43 File No 960 140 3 Bad Track FORMAT 3 44 To format a track as a bad track enter the number for the drive interleave cylinder and head as indicated in the screen prompt shown below Drive number select 1 1 2 42 Interleave number 1 1 8 Press Cylinder number Press Head number dd Press Enter to return to the Hard Disk Format menu Bad Track CHECK This subtest reads the entire disk and displays a list of bad tracks The test is terminated in case of a bad track check error To initiate thesubtest enter the drive number at the prompt shown below Drive number select 1 41 2 42 gt Bad tracks will be displayed in the format shown below eylinder head 0123 0311 Press Enter to return to the Hard Disk Format menu File No 960 140 3 19 Head Cleaning 3 19 1 Function Description This function cleans the heads in the FDD by executing a series of head load seek and read operations A cleaning is necessary to perform this program 3 19 2 Operations 1 Selecting test 4 from the DIAGNOSTIC MENU and pressing Enter displays the following messages DIAGNOSTICS
124. th a low level format option Refer to Chapter 3 Tests and Diagnostics for more information about the diagnostic program If the following message appears on the display the HDD low level format is complete Partition and format the HDD using the MS DOS FORMAT command Format complete If you cannot format the HDD using the Tests and Diagnostic program go to Procedure 4 1 81 File No 960 140 Procedure4 Diagnostic Test Program Execution Check The HDD test program is stored in the Diagnostics Disk Perform all of the HDD tests in the Hard Disk Drive Test Refer to Chapter 3 Tests and Diagnostics for more information about the HDD test program If an error is detected during the HDD test an error code and status will display The error codes and statuses are listed in Table 2 6 If an error code is not generated and the problem still exists go to Procedure 5 Table 2 6 Hard disk drive error code and status cw 08h HDC overrun DRQ 1 32 File No 960 140 Procedure5 Connector Check and Replaceme nt Check The HDD or system board may be disconnected or damaged Disassemble the computer following the steps described in Chapter 4 Replacement Procedures and perform the following checks Check 1 Make sure the HDD is firmly connected to system board If any of the connections are loose reconnect firmly and repeat Procedure 1 If there is still an error go to Check 2 Check 2 HDD may be damaged Replac
125. ubleshooting Flowchart Use the flowchart in Figure 2 1 as a guide for determining which troubleshooting procedures to execute Before going through the flowchart steps verify the following Ask the user if a password is registered and if it is ask him or her to enter the password If the user has forgotten the system password perform the following procedure at the appropriate step in the flowchart in Figure 2 1 Connect the printer port wraparound board F31PRT then turn the POWER switch on The computer will override the password function by erasing the current password Verify with the customer that Toshiba Windows 95 is installed on the hard disk Non Toshiba operating systems can cause the computer to malfunction Make sure all optional equipment is removed from the computer Make sure the floppy disk drive is empty File No 960 140 Connect the AG adapter OC IM socket Does the DG IN icon glow Perform the Power Tmubleshoating ures in Section 2 3 Perform the Power Supply Does the Battery glow Tmubleshaating P ures in Section 2 3 Yes Tum the Power Sw iteh on Perform the Power Supply Does the DG IM icon flash Tmubkshaoating in section 2 3 Perform the System Board an enor message displayed Tmubleshooting Procedures in section 2 4 E the Perform the Display TOSHIBA bgp Troublesho
126. ubtest reads the thermistor connect check status of the power supply microprocessor then compares it with the original data If the data indicates the connector is open or shorted it displays an error message Subtest 06 Quick Charge This subtest determines whether the battery pack can be quick charged Refer to the table listing the result codes in Chapter 2 3 9 File No 960 140 3 5 Memory Test To execute the Memory Test select 2 from the DIAGNOSTIC TEST MENU press Enter and follow the directions on the screen Move the highlight bar to thesubtest you want to execute and press Enter Subtest 01 Subtest 02 Subtest 03 Subtest 04 RAM constant data real mode This subtest writes a 256 byte unit of constant data to conventional memory 0 to 640 KB Then reads the new data and compares the result with the original data The constant data is FFFFh AAAAh 5555h 0101h and 0000h RAM address pattern data real mode This subtest writes address pattern data created by the exclusive ORing XORing to the address segment and address offset in conventional memory program end to 640 KB then reads the new data and compares the result with the original data RAM refresh real mode This subtest writes a 256 byte unit of constant data to conventional memory 0 to 640 KB then reads the new data and compares the result with the original data The constant data is AAAAh and 5555h NOTE There is a short delay between
127. us 4 5 HDD initialization Printer port configuration FDD initialization HDD initialization Serial interrupt control FDD initialization Open closing PCI device BIOS RAM update IRQ routing table update Copying parameter in IRT BIOS to runtime BIOS 7Ah VGA initialization Video card recognition and wait for VGA chip initialization Output code generation Output code generation First 64 KB memory check First 64 KB memory check System configuration Store CMOS error information to SM RAM Timer initialization Get version of embedded controller and PS microprocessor Set default value to embedded controller Toshiba special register initialization Grant SMI from docking port and Selectable Bay Display initialization BIOS initialization Selectable Bay lock check Selectable Bay lock check Displaying logo Displaying logo PnP configuration PnP automatic configuration PnP ISA card isolation Search assignable resource and card configuration 21h System memory check System memory check 1 21 File No 960 140 Table 2 3 Printer port LED boot mode status 5 5 AOh Boot password Boot password COh External check External I O check A6h BIOS information update Set font address Set shadow RAM size Set expansion memory size to CMOS System resource update Set extended memory size to runtime BIOS for INT15h ACPI table update Set SCT area to runtime BIOS Set battery save mode Send date to
128. wn in Appendix This subtest checks the output and bi directional modes of the data control and status lines through the parallel port wraparound connector 3 23 File No 960 140 3 10 Async Test To execute the Async Test select 7 from the DIAGNOSTIC TEST MENU press Enter and follow the directions on the screen The async test contains seven subtests that test the asynchronous communication functions Move the highlight bar to thesubtest you want to execute and press Enter The Subtests require the following data format Method Asynchronous Speed 9600BPS Subtests 01 to 04 38400BPS Subtests 06 07 Data 8 bits and one parity bit EVEN Data pattern 20h to 7Eh The following message will appear at the bottom of the screen whensubtests 01 02 03 06 and 07 are selected Channe Channe Channe Select XXXXh 142 XXXXh 143 XXXXh the Channel number 1 2 3 The serial I O port address is specified by the XXXXh number Select the serial port channel number and press Enter to start the subtest Subtest 01 Subtest 02 3 24 Wrap around board NOTE To execute this subtest an 5 232 wraparound connector 34M741621G01 must be connected to the RS 232C port The RS 232C wraparound connector wiring diagram is described in Appendix F This subtest checks the data send receive function through the wraparound connector Point to point send NOTE To execute this subtest two mac
129. write and read operations depending on the size of the data Protected mode NOTE The CONFIG SYS file must be configured without expanded memory manager programs such as EMM386 EXE EMM366 SYS or OEMM386 SYS Also the HIMEM SYS must be deleted from the CONFIG SYS file This subtest writes constant data and address data to extended memory maximum address 100000h then reads the new data and compares the result with the original data The constant data is FFh 55h and OOh 3 10 Subtest 05 Subtest 06 File No 960 140 Memory module NOTE To execute this subtest an optional memory card must be installed in the computer This subtest functions the same as subtest 04 except it is used for testing an optional memory card Memory module capacity is 32MB After selecting subtest 05 the following message will appear Extended memory size 1 32 MB Select the number that corresponds to the memory card installed in the computer Cache memory To test the cache memory a pass through write read comparison of 5 data is run repeatedly to the test area 77000 Program size to 7000 7FFF 32 KB to check the hit miss ratio on off status for CPU cache memory One test takes 3 seconds Number of misses lt Number of hits gt OK Number of misses gt Number of hits Fail File No 960 140 3 6 Keyboard Test To execute the Keyboard Test select 3 from the DIAGNOST

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