LM Service Manual Update This
Contents
1. display close EMI foil button conductive sponge top assembly kapton tape main board screws SD1 and SD2 are 5 mm a l 5mm touch pad connector screws SD3 and SD4 are 3mm bottom f assembly 3 rt Top Assembly Removal DELL CONFIDENTIAL Preliminary 7 16 97 Dell Latitude LM Service Manual Update 9 FILE LOCATION S SYSTEMS ESPMMX MMX1 SMTS 8971 Ots1 fm When you separate the top assembly from the bottom assembly peal the kapton tape from the EMI foil Before replacing the top assembly replace the old EMI foil with a new EMI foil and replace the old kapton tape with a new piece of kapton tape Bottom Assembly The bottom assembly in your computer may have an I O EMI shield and con ductive sponges in addition to the components shown in Figure 4 32 Audio Board The audio cable may be wrapped in EMI cloth Checking the Label Jeff Jean Is the info in the following paragraph still correct Is the M1333ST system board also 82224 After replacing the old display make sure the computer s display label on the back of the computer reflects the correct display in the computer by following these steps 1 Open the computer s I O panel door 2 Check the label below the service tag as you look at the back of the computer If the label has the correct code for the display in the computer no further action is required If you replaced the display that was in the computer with a di2. Preliminary 7 16 97 Dell Latitude LM Service Manual Update FILE LOCATION S SYSTEMS ESPMMX MMX1SMTS 897 1 Ots1 fm 2 Technical Specifications The following information updates Table A 1 Technical Specifications in Appendix A Technical Specifications Microprocessor Microprocessor type speed Intel Pentium microprocessor with MMX tech nology 133 or 166 MHz or Intel Pentium microprocessor 133 MHz Internal cache 32 KB Pentium microprocessor with MMX technology or 16 KB 133 MHz Pentium microprocessor External cache 256 KB write back SRAM Math coprocessor internal to the microprocessor Memory Architecture caso eases EDO Memory module capacities sire sae va onou 4 8 16 and 32 MB memory modules must be installed in matched pairs two 4 MB modules two 8 MB modules two 16 MB modules or two 32 MB modules both EDO and fast page mode modules are supported in matched pairs EDO memory 4 8 16 and 32 MB memory modules must be installed in matched pairs two 4 MB modules two 8 MB modules two 16 MB modules or two 32 MB modules Standard RAM 16 MB 8 MB of nonremovable memory on the system board and two installed 4 MB memory modules Maximum RAM 72 MB Production Note Jeff Jean Are the memory access times correct They were 70 and 20ns DELL CONFIDENTIAL Preliminary 7 16 97 Dell Latitude LM Service Manual Upda
3. Removal and replacement procedures for all parts and assemblies are the same as those described in Chapter 4 Removing and Replacing Parts However some of the parts and assemblies used are different The following information updates Table 4 1 Factory Repair Parts and Assemblies in Chapter 4 Factory Repair Parts and Assemblies Part or Assembly Number Order Number Board Assemblies Board assembly 166 MHz service kit SVC SYS PLN LMP166ST Board assembly 133 MHz service kit SVC SYS PLN LMP133ST Main board SYS PLN TFI LMM Processor board 166 MHz CRD PRCR LMP166 Processor board 133 MHz CRD PRCR LMP133 Card cache CRD L2 CACHE LMP Heat sink microprocessor SUBASSY HTSNK CPU LMM subassembly Screws heat sink SCR 2X 4X4 PHH MS ZPS Spacer Bumper rubber flex cable BMPR LCD FPC 25X5X5M LMP DELL CONFIDENTIAL Preliminary 7 16 97 Dell Latitude LM Service Manual Update 5 FILE LOCATION S SYSTEMS ESPMMX MMX1SMTS 897 1 0ts1 fm 6 Factory Repair Parts and Assemblies continued Part or Assembly Number Order Number Board Assemblies continued Foil metal EMI SHLD EMI AL W CNDCT ADH LMM Insulator power supply INSUL MYLAR BD CONV DC DC LMP Board power supply CRD CONV DC DC LMM Insulator main board INSUL MYLAR BD CONV DC DC LMP Boards and Cards Cable flex audio jack CBL FLEX JK AUD W EMI LM CD ROM Production Note CD ROM service kit CD ROM dri
4. Dell Latitude LM Service Manual Update 11
5. FILE LOCATION S ASYSTEMS ESPMMX MMX1SMTS 8971 0ts1 fm Service Manual Update This document updates information contained in the Dell Latitude LM Service Manual New System Features Additional system features include e Now available with a 166 MHz or 133 MHz Intel Pentium microproces sor with MMX technology in the Dell Latitude LM M166ST or Dell Latitude M133ST which have the same features as other models of the computer e Support for a maximum of 72 MB of system memory by installing a matched pair of 32 MB memory modules in the memory upgrade sockets on the main board The standard minimum configuration is now 8 MB of non removable memory on the main board and two 4 MB memory modules in the memory upgrade sockets e Support for extended data out EDO memory Available in 4 8 16 and 32 MB modules which must be installed in matched pairs The Pentium microprocessor with MMX technology has twice the internal cache memory 32 KB as the standard Pentium microprocessor e A NeoMagic 2093 video controller for a video subsystem that includes 1 1 MB of video memory 6X or 10X CD ROM drives Production Note Jeff Do we want to mention CD ROM speeds Nancy Niland suggested that this line be removed because the speeds change so often e Your computer may not appear exactly as shown in some of the figures in the Service Manual Conductive sponges or EMI shields may have been added DELL CONFIDENTIAL
6. TFI S VGA 12 1 LMP LG display TFT 12 1 Board TFT inverter CRD INVRTR TFI LMP LG Cable TFT flex CBL FLEX LCD TFI LG W EMI LM Bezel TFT back CVR BK LCD TFI LMP LG Memory Memory module 64 MB SODIMM CUS MEM 64M LMP service kit Memory module two 32 MB DIMM 32MB 70NS 8X32 NBK G EDO memory module DIMM 32MB 60NS 8X32 NBK G Miscellaneous Parts Top cover palmrest PLMRST PLSTC BLK W EMI LM Top Case Assembly Guide rail hard disk drive left RAIL HD LE W EMI PLD LM Guide rail hard disk drive right GDE RL RT HD LMP Case base bottom CVR BTM PLSTC BLK W EMI LM Customer replaceable unit CRU DELL CONFIDENTIAL Preliminary 7 16 97 8 Dell Latitude LM Service Manual Update FILE LOCATION S SYSTEMS ESPMMX MMX1SMTS 897 1 Ots1 fm Emi Changes The following EMI changes may have been made to your computer and the sections in Chapter 4 should be updated to reflect these changes Keyboard The heat sink in your computer may be slightly different from the one shown in Figure 4 25 There may be a conductive sponge added to your computer Top Assembly If you have a Latitude MMX computer use the following figure for the removal and replacement procedure The top assembly has two hard disk drive contact springs on the underside of the top assembly There is also a conductive sponge added to the top assembly see the following figure keyboard heat sink hinge cover 2
7. fferent display for instance an IB display was replaced with an LG display cross out the preprinted code and write the code for the replacement display in the blank space on the label If the computer does not have a display type label place the blank label that came in the service kit below the service tag and write in the code for the display for instance IB SA or LG Main Board Switch The following information supplements step 10 of the Main Board procedure in Chapter 4 e If you reinstall the main board with a Revision 5a main board make sure the DIP switch SW2 see the following figure is set correctly for the type of display STN or TFT in your computer DELL CONFIDENTIAL Preliminary 7 16 97 10 Dell Latitude LM Service Manual Update FILE LOCATION S SYSTEMS ESPMMX MMX1SMTS 897 1 0ts1 fm e Foran STN display switches 1 and 4 are on and switches 2 and 3 are off e Fora TFT display switches 1 and 4 are off and switches 2 and 3 are on Main Board Switches If you are replacing the main board system board 82224 in a Latitude LM M166ST M133ST or in a Latitude LM P133ST with the EMI cloth tape on the audio cable use the following procedure to adjust the EMI cloth covered audio cable 1 Remove the main board from the shipping container 2 Remove the foam pad by sliding it out from under the audio cable 3 Install the main board in the computer DELL CONFIDENTIAL Preliminary 7 16 97
8. t features enabled Life span approximate Temperature range lithium ion 22 0 mm 0 86 inch 219 0 mm 8 62 inches 57 8 mm 2 27 inches 0 44 kg 0 97 Ib 10 8 VDC 42 WH 4 hours 3 hours 3 to 5 hours with one battery 6 to 10 hours with two batteries 500 discharge charge cycles Charge and discharge 5 to 35 C 41 to 95 F Storage ik haceaw ayer es 20 to 50 C 4 to 122 F CD ROM Drive Form factor dopa ae 5 25 inches IMC aCe oe 2 oe die e a siaii IDE Memory ots ol k eee oe 128 000 bytes data buffer memory Battery performance features such as charge time operating time and life span can vary according to the conditions under which the computer and battery are used DELL CONFIDENTIAL Preliminary 7 16 97 Dell Latitude LM Service Manual Update FILE LOCATION S SYSTEMS ESPMMX MMX1SMTS 897 1 0ts1 fm Technical Specifications continued CD ROM Drive continued Voltage ance oct 2 BU hdd ae Sg 5 V single voltage drive ACCESS TIME cos onh cadau hs 250 m sec Data transfer rate Sequential 150 KB sec 900 KB sec 6X velocity mode 1500 KB sec 10X velocity mode From buffer 14 4 MB sec Physical Height 5 ota tee Se tetas 17 0 mm 0 67 inch Width 5 130 6 mm 5 14 inches Depihijs ce vey ee ae 140 6 mm 5 56 inches Weight no CD in tray 0 35 kg 0 77 Ib Additional Parts and Assemblies
9. te FILE LOCATION S SYSTEMS ESPMMX MMX1SMTS 897 1 0ts1 fm Technical Specifications continued BIOS address F000 0000 EDO Memory Architecture fast page mode two way interleaved Memory module capacities vacant deen bGeties 4 8 16 and 32 MB memory modules must be installed in matched pairs two 4 MB modules two 8 MB modules two 16 MB modules or two 32 MB modules EDO memory 4 8 16 and 32 MB memory modules must be installed in matched pairs two 4 MB modules two 8 MB modules two 16 MB modules or two 32 MB modules Standard RAM 16 MB 8 MB of nonremovable memory on the system board and two installed 4 MB memory modules Maximum RAM 72 MB Memory access time TRAC Soo neta doae 60 ns CAC de a2 Bl dso 15 ns BIOS address F000 0000 DELL CONFIDENTIAL Preliminary 7 16 97 Dell Latitude LM Service Manual Update 3 FILE LOCATION S SYSTEMS ESPMMX MMX1SMTS 897 1 0ts1 fm 4 Technical Specifications continued Video Video type weal Gen elles Video controller Video memory 64 bit 128 bit hardware accelerated PCI NeoMagic 2093 systems with MMX technol ogy or NeoMagic 2070 1 1 MB systems with MMX technology or 896 KB Battery Charge time approximate Computer on Computer off Operating time approximate with no power managemen
10. ve CD ROM service kit CD ROM drive CUS CD ROM 6X LMP CD ROM 6X LMP CUS CD ROM LINT 10X LMP CD ROM LINT 10X LM Hard Disk Drive Assemblies Hard disk drive 2 1 GB service kit Hard disk drive 2 1 GB subassembly Hard disk drive 2 1 GB Bracket hard disk drive Screws bracket CUS HD 2 1GB I F2 12 5MM SUBASSY HD 2 1G F2 12 5MM NBK HD 2 1GB I F2 12 5MM IBM BRKT HD 12 5MM LMP SCR M3 0x0 5 PHH NPL LCD Assembly LCD IBM service kit Cable TFT flex LCD SA service kit LCD panel active matrix color display TFT 12 1 SVC LCD FPC INV TFT LMM IBM CBL FLEX LCD TFT IBM W EMI LM SVC LCD FPC INV TFT LMM SMSNG LCD TFI S VGA 12 1 LM SMSNG DELL CONFIDENTIAL Preliminary 7 16 97 Dell Latitude LM Service Manual Update FILE LOCATION S SYSTEMS ESPMMX MMX1SMTS 897 1 Ots1 fm Factory Repair Parts and Assemblies continued Part or Assembly Number Order Number Customer replaceable unit CRU DELL CONFIDENTIAL Preliminary 7 16 97 Dell Latitude LM Service Manual Update 7 FILE LOCATION S SYSTEMS ESPMMX MMX1SMTS 897 1 Ots1 fm Factory Repair Parts and Assemblies continued Part or Assembly Number Order Number LCD Assembly continued Board TFT inverter CRD INVRTR TFI SMSNG LM Cable TFT flex CBL FLEX LCD TFI SMSNG LM Bezel TFT back CVR BK LCD TFI SMSNG LM LCD LG service kit SVC LCD FPC INV TFT LMM LG LCD panel active matrix color LCD
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