Cash Register ECR 7900 SERVICE MANUAL
Contents
1. ecto E 100 El liz ls lis I FES SERIE 216 C 1 t joo x x x x lt LC CD paria a RD LC RST nnd LC WRA DO 2 re DO D1 3 IH a damp u E C D1 D2 4 A i E F LC D2 D3 5 en LC D3 D4 6 D5 7 ATA EEE ele i j j E LC 05 D6 8 D6 D7 9 LC D7 CER RD 1 LCLEDA RS 19 OJ LL JLL LL L iL L LL LL LL LL y Y o O o 82888886 SEBER af a a a a s xL ML 024 C08 204G1 10x2 MALE Si gt E iS AAA A A 0 uF 102 Box Header P 2 4mm ss JUAS IS lt ZDI o Do Bo Do 25 2750 m m m m A ESL HD RE S Hei HI Y Y d E RO lt lt lt lt lt 4 7 z z 7 AD gt gt gt gt E 5 Wee 73 2 2 B PO LCD CS Trouble shooting No display but backlight turns on Replace LCD unit or Main board Display OK but backlight does not turn on Check voltage at point 2 DC 5V Replace LCD unit DC OV Replace Main board 2 No display and no backlight V Check voltage at point 1 DC 5V Replace LCD unit or Main board DC OV Check Power supp2. 9 SYMBOLS AND MESSAGE Sun a 9 PROGRAMMING MODE Operator Display 121 11 PRINTER COMPARTMENT a xao cera ne 12 1 PROBUGTIOUTEINE isn 15 1 12 HARDWARE 15 y M rS 15 TSAR EY BOARD p 16 14 DRAWER iii 17 5 zu 18 1 6 INTERFACES da 18 1 7 SYSTEM BLOCK DIAGRAM u u ae 19 2 TROUBLE SHOOTING GUIDANGCGE 19 2 TROUBLE SHOOTING GUIDANGCGE T 20 S GIREUITRY d H 21 3 1 POWER SUPPLY GIREUIT 2 2 21 3 2 TRANSFORMER WIRING DIAGRANMN 23 3 3 M30842MC MICROCOMPUTER T 24 3 4 RESET CIRCUIT us een sa 27 3 5 POWER FAIL CIRCUIT eS 28 3 6 WINDING MOTOR CIRCUIT J 28 3 7 DISPLAY CIRCUIT aan a AAA na 30 Y108540 8 ECR 7900 Service Manual S S8 DISPLEAYINFORMATION u ic ee areas 32 3 9 KEYBOARD CIRCUM sa 33 3 10 DRAWER uu 34 3 11 BUZZER CIRCUM stehen 35 312 BATTERY em 36 3 13 EXTERNAL
3. C E BETIS Contra Si gnal lileslueeee fo Rash CPU 4 N A AA E O 4 47 1908 RTSOSI 5508 play Sale Loro ay Cont rol da 2 45 gt so MED CS1 Lpper Select ol 3 44 RM DW erta l Olpuloltrtlolr Flash CPU pr 0 37 TAdout wer R 1 6 6 1 OloD nm 18523262 C l o su ol 1 o 1 9232 2 se iis oa rr FEES A20 NPC11 ZZER Y OL Baz far aoa arca oa juo 3 6 7 30 n nm UI pully Ir Hh 29 TA4o 2278 ol mno Jus sg Mur cm Ten Tot ft a ao Tirol ner A lea le DUO DA bein a Y108540 8 ECR 7900 Service Manual 25 Anna YKeILIITSILIU TT Lack Printer Control Cs n Seo ER 2 LA 3 Im LG O Duo RASEN C12 SR R amp 232C 1 Pr ogr am Down Load HIH TH PA j Jif HH 3 At P 136 o IR PEND Paper Fed RO PE Paper 135 B END Paper Ed null
4. Y108540 8 ECR 7900 Service Manual T3 3 1 FIX 2PCS PAPER ROLLER TO p TOP CASE AS SHOWN ON THE UPPER PICTURE 2 SLOT MOTOR SET PIECE TO TOP CASE AS SHOWN ON THE 3 BELOW PICTURE PAPER ROLLER uy 4 FIX 2PCS BATTERY CONTACT TO TOP CASE LOCATION AS SHOWN ON PICTURE BATTERY CONTACT ui EAM 3363 a 222 BATTERY CONTACT EAM 3362 P 74 ECR 7900 Service Manual Y108540 8 5 FIX KEY FRAME TO TOP CASE PRESS UNTIL IS LOCKED 6 FASTENING 6PCS SCREW KEY FRAME TO TOP CASE Y108540 8 ECR 7900 Service Manual 75 7 1JAPPEARANCE CHECK LCD COVER 2 FIX LCD COVER TO TOP CASE AS SHOWN ON PICTURE 8 FIX LCD COVER TO TOP CASE BY FASTENING 5 SCREW 76 ECR 7900 Service Manual Y108540 8 9 FIX 2PCS PLATEN SPRING TO PLATEN ARM THEN FIX TO TOP CASE ZI PLATENSPRING 10 FIX LCD MODULE UNIT TO TOP CASE NOTE The display unit is described in the next section 6 2 LCD MODULE UNIT 0 Y108540 8 ECR 7900 Service Manual 77 78 R DISPLAY UNIT ECR 7900 Service Manual 11 1 FIX R DISPLAY UNIT TO TOP CASE 2 CHECK AND CLEAN REMOTE FILTER AND DISPLAY TUBE BY USE METHANOL 3 FIX REMOTE FILTER R DISPLAY CASE AS SHOWN ON PICTURE Y108540 8 Y108540 8 ECR 7900 Service
5. 10uF 50V VFD Drive Power VFD Filament Power 3 9V P P U10 Vpw VCC 25V 1 4 wc IN NC GND 56K F nc VCC 6 OUT 5 U9 BD5230G ivo 2 VDD C105 NO 1 4 RESET 25V C108 4700pF 29ms delay M5195 BFP Power Fail C107 0 1uF 25V TP4 VCC VBB VBB 9 2SA1036K 1 c Battery Back up Power T EC13 33uF 16V ZD1 D83 RD33EB 1 RB520S 30 lt EC20 eam R205 SVBT 100K Qo R206 25 2412 680K F 1000pF R191 62 a ent 10 10 2 Battery AA 1 5V x 3 B2B XH A 24V F1 CN12 AT i Drawer Interface JUMPER 3 D85 15 154 400 Exo R186 DRWON DRW_ON B AT om 47k mark is unmounted parts Y108540 8 ECR 7900 Service Manu al 97 P ON D HT1 Ei Di Printer Power 7 5V K 2501415 E 5 19370 1 6 1SR 154 400 125V F1 6AL 2 x EJ e o e e 22k 1 4W a 25V O 1uF 50V o 100uF 16V s DTC143EKA ZD1 B 50V RD9 1EB1 c U1 VCC D2 TA7805S Logic Power 5 0V M Vin Vout vO EC310506 o OSH 34254 SP Non Contact Pin R15 C5 16P SAN 25V 100uF 16V CT 89A CN2 DC 12V 1500mA 1 2 DC23V 200mA AC 115V 60Hz 1 5 GN
6. Q x 5 2 5 u a 24 ECR 7900 Service Manual Y108540 8 Port Assignment for ECR7900 M30842MC Port Assign List MODEL ECR 900 a i 30842 Si gnal Si gnal eoi ies ion Bn INTIA_ PF Backup Renar k zn 7 oleo oi eas Dat a Bus llama Ire DxaBRsb3 ol ooo aao Bs Dta Bus a o Jolt H Q Printer Strobe a ol _ 2 2 EE 14 losim EE amp l103DIAJL NAE 5 0 Lo namn ABD 8 tuH 1 opolan an po asas ms to To Adress Bus 1 lyol Address ol gt rara lio H2 Address Rus b Tod ee ee a ma HL A Address Bus h ee loli 97 ANDA iuo Address Bus b4 poe Ze cul Bar ni tasqa Address Bus h ry _ Joli 95 16 Le Aress Bus E zlalwum mwz la Address B O E doli 92 Address B ol Jott JAdress Bus 1 lasja r jio Le adresspB loli 2 0 Address Bus RSU em i Address Rus h mo am Ho law ess Bus h o loli dot fress ashi Adress Bus In izileucet ws n c Oo SRAM Expan
7. 101 p 20 Do AN20 1100 P21 A1 D1 AN21 99 P22 A2 D2 22 98 23 AN23 97 lt P24 A4 DA 24 96 lt 25 5 05 AN25 05 P25 As AN26 92 P30 As Ds 91 lt 2 20 lt 120 189 P121 88 P122 87 gt P123 96 124 85 m P31 A9 D9 B4 m P32 A10 D10 83 ee P33 A11 011 82 P34 12 012 81 ee P35 A13 D13 80 m P35 14 D14 79 ee P37 A15 D15 78 ep 40 16 77 41 17 176 Vss 75 P42 A18 174 2 73 4 A19 Ds P10 109 gt P44 CS3 ANO D7 P07 110 C gt P45 CS2 A21 De POs P gt P4s CS1 22 AN05 Ds POs 112 gt P47 CS0 A23 AN04 D4 04 l gt P125 P114 114 gt P126 OUTC13 INPC13 P113 115 gt P127 116 65 gt Poo WRL WR 54 P51 WRH 63 gt P52 RD ISRxD1 OUTC12 INPC12 P112 ISCLK1 OUTC11 INPC11 P111 BE10ur ISTxD1 OUTC10 INPC10 P110 AN03 P03 62 lt P53 CLKour BCLK ALE 2 D2 P02 61 P130 ANO1 D PO1 80 P131 ANOo Do POo 59 lt 157 P157 58 P122 AN 156 P156 yss NA M32C 84 GROUP Dom AN154 P154 55 P54 HL
8. BCR PC Interface FB5 B6P SHF 1AA SB Y321611T 320Y S RS232C 1 GND SCREW HOLE GN1 4M 1 4W FB6 SB Y321611T 320Y S R159 BU 539055 1 889 19066 11 789 19066 989 10066 1 989 o gt gt q 2 2 25V o 8 f ASZ 3n L0 269 8 ames x 8 E x gg nn u s ta 3 5 5551 vem TTI I IT I 995555 av TS Tuv 2 J TT I 995556 2 8 x SSESSi ag 5 SSESSEE2 Uv 1 SSESSt 1414 SSESSE Bea SStSSE I T TT gum crm mE zin BINH i 14066 39055 14066 14066 39055 14066 39055 39055 14066 RAE AE E E sr AT 11 Zr HR 121 DB AMA A o A AA a EB D E p OL YO zi 9 g Q m lt 95 ECR 7900 Service Manual Y108540 8 VPRN VCC A O M_ENA R166 9 1k F MA _ C98 EC1d C SHVP SHVP 2 R167 4 uF 6 10k 25 VCC 100pF PRINTER M T53 II I F VCC 25V PG ps xz Q 9 CN8 PRINTER A AAA Bf x
9. rai n out put Power Power suppl y i nput Pull up VBB p u Pull up WX P D Pull down 26 ECR 7900 Service Manual Y108540 8 3 4 RESET CIRCUIT The reset circuit prevents the CPU from starting to operate before the system is fully powered up and initialized Then 29m sec after power is applied reset goes high and the CPU can begin functioning When power is first applied to the circuit the VBB begins charging C141 a capacitor Output of Reset IC U10 is low resistance at VBB Line is less than 3 0 Volts VBB RESET C29 RESET Trouble shooting When power ON but no display any key operation unable Check the voltage at point 1 DC 3 3V Reset circuit is OK The problem may come from other causes Check the Power supply circuit again and replace Main board if no problem found in the power supply circuit OV Reset circuit has a problem Replace Main board Y108540 8 ECR 7900 Service Manual 27 3 5 POWER FAIL CIRCUIT Power fail generated by a circuit using the PF DTC voltage When power is on and the system is operating normally the power fall signal stays at a higher voltage than 1 21V The CPU watches power failure signals all the time When power is on PF 5pin at High level When power down and CPU U1 27pin voltage goes down lower than PF detection voltage 1 21V low power supply detector circuit of the CPU works and execute PF Vini VC
10. 55 55 V ocd B 5565567 vzea E SSESSLAI veza me esse M a sessi V Es Es E E ala 39001 095 g 34001 652 d 39007 890 Elx AOL 66H 39001 255 a OL ss 34001 962 99 XOT 16H 30001 555 per a ee J 34007 E Je 34001 5 34001 34001 2 39001 ges 34001 8 8 8 E gs 34001 3 XOT 68H E ERES ER 34001 9 OL 88H eS NN x HERES 888888 88888 N e ceo tc tc tc gt m x 0 q q L L 8 3 epejelsiojul 512 etre S 5 lt gt st LO CO 27252 97991 2 OL 99 A AND 4 ZI222222 z9919923 58 A a 3193 5 gt 8 o gt 623 _ B A91 4NOL tC o No l 823 a 1 m ELSO A9 3noL o 6 Qo m 193 o 55 s 9 A3 m Qe 255 N lt B F E 2 aa 5 r 5 8 d 3 21 x m BE SE B 8 5 E RE E a m a lt ECR 7900 Service Manual Y108540 8 94 x KSCANO 0 0 0 0 0 0 0 k lt lt KS CAN KS CANS KSCAN7 VCC O KRETURNO 2 p KRETUIRM 1 1 1 ETA KRETURN7 TP3 GND
11. Device Manager po The Device Manager lists all the hardware devices installed on your computer Use the Device Manager to change the properties of any device Driver Signing Hardware Profiles E Hardware profiles provide a way for you to set up and store aa different hardware configurations Hardware Cancel Apply TO ECR 7900 Service Manual Y108540 8 14 Please confirm the display of USB COM test COMn COM7 was made the example of the following L Device Manager Bl x MCLOVER G3YPGzWA Em Computer J Disk drives 2 Display adapters DVDICD ROM drives H Floppy disk controllers H E Floppy disk drives y IDE ATAJATAPI controllers amp Keyboards rm 74 Mice and other pointing devices Monitors Network adapters y Communications Pork ications Ti OM Multiport Communications Pork COPS E Multiport Communications Pork COD 2 Multiport Communications Port COMMS E Multiport Communications Pork COMB 4 Printer Port LPT1 4 USB COM test Sound videa and game controllers System devices Universal Serial Bus controllers Y108540 8 ECR 7900 Service Manual 71 5 DeviceClass specification Comply with USB device class s communication device class Abstract Control Model spec Please refer to USB Class Definition for Communication Devices Version 1 1 of the USB society issue f
12. gis RAMCS 2 c C26 C27 9 BCR ON 19 10 LO EIN 2 W 164 tuk Ouk ca SpF FRDY AA D gt gt 2 33pF LCD BS62LV4007SC 70 33pF ES SP S r o 5 E CS le B S RAM Program amp PLU SF e e C45 25V GND CONNECT PATTERN u4 74LV1G08 S NE FMP CNVSS C A 10 a mark is unmounted parts HIF3FC 10PA 254DSA UE A N 5 eu 2 CPU F MEM Write 1 2 3 4 5 6 7 8 Y108540 8 ECR 7900 Service Manual 93 o _ 3 U E 1 j i 3 amp G 5 F E 2 5 t e Y 5 x LEVE E e es c NO EDI 2 ait lt 5 Zoe oe HHI a 9 8 gt o 8 Elo E S o E 2 2 8 9 d A 5 T 8 8 i E E 1 i o 8 3 g 5 i x 340001 99 i 0 an i 140001 99 pu ey 8118 0L 10 Qo 55555 v vea 55655 V Fea 55655
13. a 37 ci U2 5 WR u M30842M C 054GP OS RD 28 OF ves 25V tO co co A mm ROMCS 26 CE vss 46 gt 42222225055 1 IDEO RESE 2 RESET HE 5 5 s MB M29F 400B C 70P FTN R39 10K SSS r 3 1 11 po P14 D12 2 AA E P22 A2 P23 A3 VBB P24 M posjas 9 R 3 R28 33 A E C15 FMP CNVSS re Zi ma l R52 33 4 E 30p F po LE KSO LA N a D1 14 D1 R53 __ 2 8 j 10 15 D2 xs ares 49 Toig Ds 0 E NE 8 m 54 __18 D4 C16 R54 0 x Ss _ 7 A5 ps 19 05 gg nie paio R56 33 A9 6 ag 06 2 D6 Cea RBB MO 3 0 2 DS D7 15pF CPU_RST Pas 831 60 33 27 Sera paan 82 R61__33 12 _ 26 3 ee gt 33 V Na 9 9 33pF R65 0 2 p 801 R64 33 14 25 AM EUM S3pF LIES E RI 3 f S f ei G 2 BRA PRO AN E pus cm UR f a um 3 R70 33 18 E DK 2 6 VBB 3 lt 74 E mum 30 MTICE2 Y EUM m 33pF c 983MHz CSTC Fe 8203 33 A19 0 R202 1 32 33pF A18 A17 VCC o PERO 2010 EUM m 33pF
14. 50V O luF S 80845 EC1 IC1 ECR 7900 Service Manual 100 9 EXPLODED DIAGRAM NC PART C bm A U lt O CD lt cO O BL O lt t LLI N lt Ca ea O ui I O gt _ a o O gt lt gt CC LLI o 289 d ET SIE e gt O es Un Li I LL a gt lt J lt a CC UD LO 101 ECR 7900 Service Manual Y108540 8
15. B 25 E bm 24 E amp 8 ol gt 23 5 0 0 VPRN 2 WA 2 el o 9 9 M dm HLATCH R170 EE emu P LAT HLATCH gt N2012ZA102 STB1 R171 I 16 2 a lt aae gt gt gt PS STBZ2 N2012ZA102 AA P STB2 14 14 HCLK R173 P CLK NE HDATA R174 N2012ZA102 aaa j j a E j sss P DATA 40 18 N2012ZA102 VPRN g M 19 wl of N VPRN VH ul ul ul ul u Mon N oG 8 20 9 aF gt 3 3 3 3 3 sec 715 Hh 8 8 8 8 5 s s lt 6 vcc vcc x2 OPEN 26 9 wl wl 65 wo 9 e aj o gt 1 27 o o o o o R204 o 0 000 x R175 HLW27S 2C7 5311 R176 o 220 KF 2 9 0 1 R SHTH R177 de RSHIH VCC E C101 u PG o e a o 0 01uF o D lt lt R178 x 1k e C102 8 5 25V o R179 S 1k SVCC ON WIND MOTOR I F VPRN B3B XH R181 WIND ON an R182 0 VPRN VPRN EC 18 EC 19 10uF 50V 10uF 50V PG PG mark is unmounted parts 2 3 4 5 6 7 8 ECR 7900 Service Manual Y108540 8 HVPSW Printer Power 7 5V 24V 32V gt VPRN cui EC15 I 2 100uF 16V 2 4 5 Bs 6 A 8 Logic Power 45 0 R185 9 0 1W 10 11 A EC 16 8 12 GND 13 14 100uF 16V 15 B15B PH K S 7 17
16. Check voltage AC 7 6V at point 1 If it outputs properly Replace Main board or printer If it doesn t output properly Check Power supply circuit P 9 11 Faded print or run print Replace Main board or printer Cannot cancel Head up sensor error Check voltage at point 2 If DC 5 0V is properly output Replace Main Board If DC 5 0V is not properly output Replace Printer Cannot cancel Paper end sensor error Check voltage at point 3 If DC 5 0V is properly output Replace Main Board If DC 5 0V is not properly output Replace Printer Head up sensor or Paper end sensor does not work Replace Main board and pri nter Y 108540 8 ECR 7900 Service Manual 45 TH VDD VP HS VPS 3 15 INTERFACE CIRCUIT BCR I F TXD2 RXD2 RTS2 and CTS2 are UART communication parts from the CPU 01 U7 MAX3232CPWR is RS232C transceiver The BCR power supply 5V is output by the BCR ON signal from the CPU USB I F USB I F is controlled by the M38K07M4L U1 The serial I F is transferred to USB I F in this circuit SD card I F SD card I F is controlled by the CPU U1 When the data is written read VSD_EN goes High and VMEM is supplied to SD card USB RS232C SD card o A2004WAO 1 46 ECR 7900
17. H Weight 9 9 Kg 21 82 Ibs Y108540 8 ECR 7900 Service Manual 3 SAFETY PRECAUTIONS The power socket for this cash register must be located near the machine and must be easily accessible Do not use this cash register outdoors in the ram or near any liquid MAINTAINING THE CASH REGISTER Provided below is information on how to maintain the cash register Note Before cleaning the cash register make sure it Is powered off and or unplugged from the wall outlet Before unplugging the cash register from the wall outlet make sure that three charged AA standard backup batteries are installed in the battery compartment All data stored in memory will be cancelled if you unplug the cash register from the electrical wall outlet without back up battery supply 1 Keep all liquids away from the cash register so as to avoid spills which could damage the electronic components 2 To clean the cash register firstly turn it off and or unplug it from the wall outlet be sure the back up batteries are installed then use just a damp cloth Do not use corrosive substances such as solvents alcohol petrol or abrasive components 3 the cash register is stored in extreme hot or cold temperatures 0 C 40 C allow the temperature inside the cash register to reach room temperature before turning it on 4 DO NOT attempt to pull the paper tape when the cash register Is printing or when you are loading paper Always use the Feed key t
18. MEMORY u u 38 3 13 1 SRAM BS62LV4006SCP2 70 2u u ul n ere te idi dc u S 38 313 2 FROM 29 4 u u a aa 40 3 14 PRINTERCGIRGUIP S iu u ET 43 3 15 INTERFACE CIRCUIT ca 46 DIAGNOSTIC SOFTWARE score 48 4 1 DIAGNOSTIC CHECK amp FINISHED GOODS 48 4 2 SOFTWARE VERSION CHECK 56 INSTALLING SOFTWARE 58 5 1 USB driver install eio u nen 66 ASSEMBLY INSTRUCTIONS is 73 6 1 TOP CASE UNIT 5 id 73 6 2 Display ASSY u a 80 6 3 Bolt m case UNIT ASS Varna 83 DIAGRAM sastre 93 EXPLODED 101 ECR 7900 Service Manual Y108540 8 PREFACE This Service Manual is addressed to the field engineers who will install and service the cash register it also provides product maintenance guidelines SUMMARY This manual Is divided into five chapters The first two chapters describe the operating functional checks and maintenance procedures Chapter 3 describes the disassembly and reassembly procedures Chapter 4 gives troubleshooting repair information while Chapter 5 describes the electronic circuitry PREREQUISITES The topics described in this manual require
19. Manual 12 1JCLIP FERRITE CLAMP HARNESS ASSY THEN TURN ONE ROUND TO FERRITE 2 CLIP HARNESS ASSY TO CORD CLAMP AS SHOWN ON PICTURE 19 6 2 Display unit ASSY 1 INSERT HARNESS ASSY LCD MODULE UNIT a ens uci 2 SOLDER HARNESS ASSY TO LCD MODULE UNIT LCD MODULE UNIT 80 ECR 7900 Service Manual Y108540 8 LCD REAR CASE LCD MODULE Y108540 8 ECR 7900 Service Manual 3 1 SLOT LCD MODULE HARNESS ASSY TO LCD REAR CASE 2 FIX LCD MODULE TO LCD REAR CASE 3 FIX LCD FRONT CASE TO LCD REAR CASE AND PREES UNTIL IS LOCKED 81 82 Too LI HARNESS ASSY FERRITE CLAMP 1 TURN ECR 7900 Service Manual 4 CLIP FERRITE CLAMP TO HARNESS ASSY AND TURN ONE ROUND TO FERRITE CLAMP Y108540 8 6 3 Bottom case unit ASSY 1 1APPEARANCE CHECK THE BOTTOM CASE 2 STICK CORD BOTTOM CASE LOCATION AS SHOWN ON PICTURE BOTTOM CASE TABSIDE CORD CLAMP Y108540 8 ECR 7900 Service Manual 83 HARNESS ASSY SLOT HERE P HARNESS ASSY BOTTOM CASE INSULOCK TIE 84 ECR 7900 Service Manual 2 1 SLOT HARNESS ASSY TO BOTTOM CASE FOLLOW THE PICTURE AS SHOWN ON FIGURE 2 TIE TOGETHER HARNESS ASSY WITH BOTTOM CASE BY USE INSULOCK TIE AS SHOWN ON PICTURE Y108540 8 4 FIX TRANSFORMER UNIT TO DRAWER UNIT BY FASTENING 2PCS SCREW Y108540 8 ECR 7
20. Service Manual Y108540 8 Trouble shooting Scanner head lamp does not light up when power ON Check the voltage AC 5 0V at point 1 If it outputs properly Replace the Harness ass y If it doesn t output properly Replace the Main board Scanner head lamp lights up but the scanner does not read a barcode Replace the Harness If the condition is not changed replace the Main board Cannot work the USB port Replace USB I F Board Cannot write or read the data for SD card Check the voltage DC 3 0V at point 2 If it outputs properly Replace Main board or SD card unit If it doesn t output properly Replace Main board Y108540 8 ECR 7900 Service Manual 47 4 DIAGNOSTIC SOFTWARE 4 1 DIAGNOSTIC CHECK amp FINISHED GOODS CHECK Diagnostic Software will check whether the machine works properly or not It is already built in the machine and is always ready to boot this software by the following instructions It is also useful to check after repairing the machine Note Once you start up the diagnostic software you should operate all the checkup items In other words it is impossible to check only Keyboard unit Display unit or Drawer unit etc Please make sure you should complete the diagnostic software and it means OK when no error occurs through the checkup DIAGNOSTIC CHECK LIST MODE 02 AEL m Steps Description HHE LCD Display 00 RECEIPT 3 H ALII E
21. a menu option when it is highlighted or confirms the data entered for a form field 1 1 12 Registers single or multiple item sales to departments numbered Y 1 between 1 and 38 enter a department number from 1 to 19 press the corresponding key To enter a dept shii department number from 20 to 38 press first the key then the corresponding department key For department numbers from 39 to 99 see above In caption programming these keys can be used to input the characters indicated on the related key as indicated in the Character Table You can define clerk names receipt header footer department names department group names PLU product names currency identifiers and credit card 16 captions As the SP key be used to add spaces between characters and to confirm entry of repeated characters Gas 13 Enters a decimal point for defining product quantities with decimals during oe sales transactions In caption programming as the DEL key it performs the typical backspace function for deleting the last character entered dh gt 14 Input amounts indicate multiple items add and subtract 20 00 amounts and percentages and input department numeric codes from _ 39 to 99 dept shii see amp cde above D 15 When operated outside of a sales transaction displays setup information the current date and time clerk number Electronic Journ
22. digits rightside Indicates that a Take out tax rate is applied to the transaction n a 7 not applicable These symbols clear automatically when you start the next entry or press the 10 ECR 7900 Service Manual Y108540 8 PROGRAMMING MODE Operator Display Ref 1 Navigation Mode d Ref 1 Data Entry Mode Lowercase Ref 1 Data Entry Mode Uppercase letters lt gt Ref 2 In Navigation Mode field selection ES Ref 5 In Navigation Mode indicates a menu option appears on the right u Ref 2 Manager mode PROGRAMMING MODE Operator Display Y108540 8 ECR 7900 Service Manual 11 PRINTER COMPARTMENT The printer compartment is on the top left hand side of the cash register It houses the thermal paper roll journal winder spindle back up batteries and the thermal printer This cash register uses standard 21 4 57 thermal paper LOADING THERMAL PAPER FOR ECR 7900 MODELS Proceed as follows to load the cash register with paper 1 Make sure the cash register is plugged into a grounded power outlet 2 Unlock open and remove the printer compartment cover then remove the plastic journal winder spindle 3 Release and lift the clamshell mechanism as shown in the following figure 4 With a pair of scissors cut the end of the paper tape to create a straight even edge so that the paper can be properly fed through the print mechanism 12 ECR 7900 Service Manual Y108540 8 5 Set the paper
23. knowledge of similar products REFERENCE DOCUMENTATION e Instruction Manual provided with the product e Spare Parts Catalogue DISTRIBUTION General LAST EDITION January 2008 Y108540 8 ECR 7900 Service Manual Hl MAJOR FEATURES p e e p 0 e 0 0 oe ee 00 99 departments that can be grouped into up to 10 merchandise categories Up to 3 000 Price Look Ups PLU with the possibility of associating a department and tax status to each 15 clerk numbers to monitor the sales of individual employees with programmable Clerk security system Maximum 12 000 line internal Electronic Journal memory substantially expandable via SD card Thermal printer with journal record or receipt printing capabilities PLU creation for barcoded articles and barcode programming Cash register programming via computer Quantity entries using decimal point Training mode facility with related password Replaceable keycaps Receipt on off capabilities Programmable names for departments department merchandise groups clerks PLUs foreign currencies and payment media Customer sales receipt header and footer personalization and logo creation via PC Special rounding capabilities for Swiss Danish and Swedish and Euro currencies Detailed department programming 4 foreign currency exchange rates with related currency descriptors Cash check charge card and 6 other credit card tender media keys wit
24. supplied or not 10 Can not print properly P 31 Scanner does not work 12 Cannot use USB I F Cannot work the USB port p 33 Cannot use SD card Cannot write or read the data for SD card 20 ECR 7900 Service Manual Y108540 8 3 CIRCUITRY 3 1 POWER SUPPLY CIRCUIT VDRW VDRW is generated using the AC input across pins 3 of CN12 This AC voltage is rectified by D15 a 1SR154 diode The resulting DC voltage is about 24V This voltage is used by the drawer solenoid and the buzzer VCC5 VCC5 is generated using the 13V AC input across pins 1 and 2 of CN12 This AC voltage is rectified by the RS402 bridge rectifier and filtered by EC14 a 15000uF capacitor The resulting DC voltage is about 12V It is supplied to the input of U9 a M5291 comparator and then it outputs 5V VCC3 VBB VCC3 and VBB are generated using the VCC5 VCC5 is supplied to the input of U15 a BAOOCCOWFP regulator and then it outputs about 3 6V After 3 6V passes through D12 it becomes 3 3V as VCC3 After 3 6V passes through D13 it becomes 3 3V as VBB VPRN VPRN the printer motor voltage is generated using the 13V AC input across pins 1 and 2 of CN12 This AC voltage is rectified by the RS402 bridge rectifier and filtered by EC14 a 15000uF capacitor The resulting DC voltage is about 12V It is supplied to the collector of Q10 a 2501415 transistor This base voltage is controlled by ZD7 This emitter voltage is about 7 6V VPW
25. with key caps except numeric keys feed menu Total payment ist 6 11 16 and RC 20 2 en Numeric keys Department keys and letters for Amount tender key programming 16 ECR 7900 Service Manual Y108540 8 1 4 DRAWER The drawer type is DSCA 4 Bill 8 Coin with DIDDRAWER gt gt gt i s pS 322 A a f ss Vas t I Men i Y108540 8 ECR 7900 Service Manual 17 1 5 PRINTER The printer is SII LTPC 235 that is a line thermal printer developed for ECR use 58mm 1 Station Thermal Printer r Ed rac nme 4 saam 4 rd Doe Y TI E AES 8225 mea ee power Electrons x Peso L zw Peer Tees See EK Person 1 01 TEST OK QU DK DRAMER TEST RS232CH2 NG SD CARD N ao 50 CARD 1 6 INTERFACE RS232C for Barcode Reader USB for PC communication and SD memory card slot O emanan gt AIR IIA E ERASE EERE E x DRAWER TEST RS232CH2 TEST N G 0 CARD NONE OK USB I F for PC RS232C for Barcode Reader SD Memory card slot 18 ECR 7900 Service Manual Y108540 8 1 7 SYSTEM BLOCK DIAGRAM Printer Display Rear Display Motor Control 10digits 16segment VFD LTPC235 Control Main CPU Front Display M30842MC 160 x 80 dots LCD Key sca
26. 134 vol edipR 11 Had 13314 HOP tad I ul o uo Drawer wat CO oli mawr manra 117 Dave Sensor i i H I i i e P12 O gt 3 KRO bt urn a7 R q D 1490 KE Key Return4 puli Jo KR Key Returns lpulil Vol Ns KR Key Rtun amp I lpulil To reg KRI Ii l eyg amp ao0 tp loli key return ko Key Scan 1 ol alsi lid l Ky amp an4 loO nulolrtolr lO iks Key svans TI olpulolilol1 aa ls Key Sang lo nulolrtolr P14 Sen teria pea Key return o la Key Rtun 12 a lpulil ol KR key eura a LE OL BIN Otra Lock Ret urn tow ti ol BADEN ER A px pg ess 5LolisiANinyiSIXD lvol ly ttre CC o lol I oli 1 129511 lol loli 128 AN152 SEXE iuo PB ol 127 Q PLY Motor PH B eyo 4 126 Q RSE RMIRSHEIT loOlnulolH oOLlrL Instor sel ect 12 iQ SE ORAC e lalasa o SE VOLCR SB EG Olpulot H ol 7 I puli HI 1 L 16 1 120 xt CC Elie lee 78 E Mn Fran onator 9 8 pole EwelwB h Power CN 3 Backl p 3 3V 3V li ewerlan 1 Power ven bs
27. 32C port is made on the PC 2 Support OS Microsoft Windows 2000 Windows 3 Driver file Win2kcom inf Note WindowsXP uses the same file 4 How to install the driver Note The sample screens use Windows2000 1 Connect the device s AC plug to the consent And turn on the power supply of the PC 2 Connect the USB cable to the PC Device is detected S My Documents Computer Network Places r Found New Hardware Recycle Bin lt Default Internet Explorer bo NS a A Connect to the Internet Astart dew CB 2 20PM 3 Click the Next Found New Hardware Wizard 2 Welcome the Found New Hardware Wizard This wizard helps vou install a device driver for a hardware device To continue click Next Cancel 66 ECR 7900 Service Manual Y108540 8 4 Click the Next Found New Hardware Wizard Install Hardware Device Drivers device driver iz software program that enables a hardware device to work with an operating system This wizard will complete the installation for this device oy Default A device driver is a software program that makes a hardware device work Windows needs driver files for your new device To locate driver files and complete the installation click Next What da you want the wizard to do Search for a suitable driver for my device recommended Display a list of the known drivers for t
28. 7 u ESZE Kr 01234567 LLLI 89 5 lt gt BABCDEFGHI JKLMNO AAA PQRSTUVWKYZE _ abedefa LLL hiiklmoparstuvexyzC 7 10808040087 dad DPa bhbhkbkS0nt0o68bs0o 4 4 200563 54 540082818 J OSZZACELNOSZZAAAACEEEEG ill 1 Connection test of USB 44 lt lt RESET A 222 t lt lt lt RESET B gt gt gt 56 ECR 7900 Service Manual Y108540 8 Note The latest version of the ER7900 is Ver 1 01 Appendix jig for 5232 PORT Testing jig Loop back connector for barcode scanner olivetti lt Connecting Diagram gt D sub 9 pin Y108540 8 ECR 7900 Service Manual 1kO of 9 INSTALLING SOFTWARE In order to install software start up M32CPU series LOADER The down load is available via the USB interface Before doing the following procedure the PC has to install the USB COM driver referring to 6 USB driver install Please follow the instruction below in numeric order PC side 1 First of all please check the PC COM Port number Right click on My Computer and then Click Properties 2 Click Device Manager System Properties 58 ECR 7900 Service Manual Y108540 8 3 Check COM Port number Note If you use usb com conversion there might be shown USB Serial Port COMn After you checked the COM Port number please close the device manager E Device Ma
29. 900 Service Manual 85 86 ECR 7900 Service Manual 5 11 FIX AC CORD TO BOTTOM CASE 2 FIX INLET SET PIECE TO BOTTOM CASE BY FASTEN 2PCS SCREW AS SHOWN ON PICTURE Y108540 8 6 1 FIX FUSE HOLDER PWB TO BOTTOM CASE BY FASTENING 1PC SCREW AS ON PICTURE 1 2 SLOT FUSE TO FUSE HOLDER AS ON PICTURE 2 3 FIX FUSE CAP TO FUSE HOLDER AS ON PICTURE 3 ASE N FUSE CAP Ip L 7 FASTEN 8PCS SCREW MAIN PWB TO BOTTOM CASE Y108540 8 ECR 7900 Service Manual 87 8 1 INSERT DRAWER CONNECTOR AND TRANSFORMER CONNECTOR TO MAIN PWB MAINPWB UNIT AS ON PICTURE AND I F PLATE CABLE TO MAIN PWB 2 INSERT USB JUMPER LEAD W thii RANSFORMER HARNESS bl INSERT TO CN12 YE VE CABLE FROM F PLATE INSERT JUMPER LEAD FROM USB TO CN 10 BOARD INSERT TO CN8 n 9 FIX PRINTER EARTH WIRE AND DRAWER EARTH WIRE TO UPPER PLATE THEN FASTENING 1PC SCREW EARTH WIRE FROM HARNESS ASSY CA24 903A 88 ECR 7900 Service Manual Y108540 8 10 INSERT DISPLAY HARNESS BATTERY BOX HARNESS AND PRINTER PWB JUMPER LEAD TO MAIN PWB LOCATION 5 SHOWN ON PICTURE xx JUMPER PRINTER JUMPER LEAD N EAS FRONT DISPLAY HARNESS INSERT TO CN9 BATTERY BOX HARNESS INSERT TO CN13 Y108540 8 ECR 7900 Service Manual 89 11 INSERT LCD MODULE HARNESS SD CARD HARNESS AND K B JUMPERLEAD TO MAIN PWB LOCATION AS
30. A Confirm the SD card is unlocked TROTE TAMENTE Tm 48 ECR 7900 Service Manual Y108540 8 Input 960802 gt TOTAL Ram Check N hin tar arat X Clover Electronics ECR Test Report ir j ECR790 XOCIODODOODEROODOOOOOODOIOOOCE Versian 1 00 RAM TEST OK Pate Pees Py Py Falk Dd HO The newest thing is printed ag SO ETE Y 108540 8 ECR 7900 Service Manual 49 MODE 50 Steps Description HHE Keyboard Check 4 4 F 3177 LCD Display 100 VFD Display RECEIPT 17 0 KEYBOARD TEST Ok ECR 7900 Service Manual Y108540 8 LCD Display 100 VFD Display RECEIPT y t KEYBOARD TEST Y 108540 8 ECR 7900 Service Manual 51 After repairing the machine go through the finished goods check list below It means OK when no error occurs through the checkup FINISHED GOODS CHECK LIST LCD Display LCD VFD Display RECEIPT Lib KEYBOARD TEST OK 52 ECR 7900 Service Manual Y108540 8 MODE d E TEM m Steps Description HF LCD Display 10035 VFD Display VEDA RECEIPT Ly p Keyboard Check 4 4 F 3177 KEYBOARD TEST Ok Y108540 8 ECR 7900 Service Manual 53 Steps Description LCD Display LCD VFD Display VED
31. A RECEIPT j H ESBS At 01234567 89 5 lt gt BABCDEFGHI JKLMNO PORSTUVARYZIA J abcdefg hijkImnoparstuvaxyz 10008000007 21 0 44 2 9 5 M OSZ2zACELNOSZ2ZAAAACEEEEG 0 iii Press TOTAL 7 lt lt RESET 19 4 lt lt lt RESET B 54 ECR 7900 Service Manual Y108540 8 Steps Description LCD Display 100 VFD Display RECEIPT Ly ESBS At 01234567 89 5 lt gt BABCDEFGHI JKLMNO PORSTUVARYZIA J abcdefg hijkImnoparstuvaxyz 10008000007 21 0 44 2 9 5 M OSZ2zACELNOSZ2ZAAAACEEEEG 0 iii Press TOTAL 7 lt lt RESET 19 4 lt lt lt RESET B Y108540 8 ECR 7900 Service Manual 55 4 2 SOFTWARE VERSION CHECK Through the diagnostic check it shows the software version in the beginning of the check However itis possible to check only the software version without diagnostic check SOFTWARE VERSION CHECK MODE Ep Steps Description LCD Display LODEF VFD Display VEDA E RECEIPT Uj H Print Check 71 7
32. B voltage is used by CPU external RAM and FROM It is supplied by dry battery at the time of back up Battery specification Type AA x 3pcs Voltage 4 5V CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS VCC3 lt D 155955 VBB DV 15355 7 Cy Q K 5205 30 RW x x 9 DIB e e 155355 R200 1 y 10K R201 RB UB X 215 CM3 39 1 ES VIN 2 2 3 u e R206 B ou 2 2802412K R204 ul CIA 0 luF Trouble shooting Check whether the batteries are supplied in the battery box Check the voltage of each battery It should be over 1 1V per battery It outputs less than 1 1V per battery less than 3 3V with 3 batteries Replace the battery It outputs over 1 1V per battery over 3 3V with 3 batteries Check the voltage at point 1 Check the voltage at point 1 It outputs almost same voltage as battery voltage Replace Main Board It outputs much less than the battery voltage or OV Replace Battery unit 36 ECR 7900 Service Manual Y108540 8 Y108540 8 ECR 7900 Service Manual 37 3 13 EXTERNAL MEMORY 3 13 1 SRAM BS62LV4006SCP 70 512K bytes S RAM used as an external RAM for PLU and Electric Journal and etc POO through are multiplex bus that consists of data bus 00 07 P20 through P27 are multiplex bus tha
33. C5 Power Fail 3 6 WINDING MOTOR CIRCUIT The winding motor power is VPRN at Printer Power voltage Printer Power voltage is on and WIND ON is Hi when is ON as the winding motor is run VPHN A R34 18 1W x D2 CB 1SR15440 _ 2 CR CO WIND CN R B Q3 AK O tuF_DV SV 25D1817 PG s W ND MOTOR I F 28 ECR 7900 Service Manual Y108540 8 Trouble shooting Start up the Diagnostic software and check whether winding motor is properly working or not 8ee 4 1 DIAGNOSTIC SOFTWARE CHECK If Winding motor does not work start up Diagnostic software again and check the following voltage when the test report is printing on a receipt Note When a printer is not working the power supply of the winding motor should be OFF status OV Therefore make sure the following voltage should be checked during the printing in the diagnostic checking Check voltage DC 7 6V at point 1 If it output properly Replace the motor If it does not output properly Check Power supply circuit p 9 11 Check voltage DC 5 0V at point 2 If it output properly Replace the motor or Main board If it does not output properly Replace the Main Board Y 108540 8 ECR 7900 Service Manual 29 3 7 DISPLAY CIRCUIT
34. Cash Register 7900 SERVICE MANUAL Code Y108540 8 PUBLICATION ISSUED BY Olivetti S p A 10015 Ivrea Italy Gruppo Telecom Italia Via Jervis 77 10015 Ivrea ITALY WWW Olivetti com Copyright 2008 Olivetti All rights reserved ATTENZIONE Pericolo di esplosione se la batteria non viene sostituita in modo corretto Sostituire solo con un tipo uguale o equivalente raccomandato dal costruttore Eliminare le batterie usate seguendo le istruzioni del costruttore CONTENTS MAJOR FEATURES cher een 1 ECR 7900 CASH REGISTER COMPONENTS 2 CASH REGISTER SPECIFICATIONS dies 3 SAFETY PRECAUTIONS u Er ceu ed doc Lu oe Pc Eu Edo E Voce 4 MAINTAINING THE CASH REQGISTER 4 UNPACKING AND SETTING UP THE CASH REGISTER 5 SIANDARDACCESSORIE nennen nee datada 5 THE KEYPAD FOR ECR 7900 6 KEYPAD FUNC FONS u u ican vai ee 6 OPERATOR AND CUSTOMER DISPLAYS 9 SWITCHING THE OPERATOR DISPLAY ON 9 SWITCHING THE OPERATOR DISPLAY 0FF
35. D ONE POINT AC25V 0 1A 6 R8 f EC6 10k 202 ACAV 05A B7P SHF 1AA 100 50V RD30EB3 lt m R9 VFD Drive Power 28V F3 D7 C E Q4 ey TR 51937005A 154154400 2SA1284D 125V F500mAL B TR 5 19370 1A 125V F1 AL VFD Filament Power 3 9V P P 33 14W 3225size A Mark not used 2 3 4 5 6 7 98 ECR 7900 Service Manual Y108540 8 2 S UV SW UV SW K SCANO K SCAN1 K SCAN2 K SCAN3 K SCANA K SCAN5 K 5 6 76 9PIN CN31 74 SCAN SCAN8 K RETURNO K RETURNI K RETURN2 K RETURN3 K RETURNA K RETURN5 K RETURN6 60 33 03 02 32 275 JUMPER O JUMPER 277 KS10 CN33 UV SW JP 2PIN CN34 E z 2 8 amp Fi x 3 68 H REG2J5 i J6 _69 B REGIS OFF 49 66 JO 7 0 11165 n 9 B M 3 Y108540 8 ECR 7900 Service Manual 99 E vcc O 59 GAA ATO S 83 958 8 s 104 F 16V Mark not used Y108540 8 DG1 10 LY 01G 1000pF 1 uF
36. DA ALE AN153 P153 ISRxDO AN 152 P152 ISCLKO AN 151 P151 M32C 84 M32C 84T 52 P57 RDY Vss 51 dp P134 ISTxDO AN150 P150 50 lt P135 1 40 lt P136 Kis AN7 P107 48 P137 ANe P108 gt P6o CTS0 RTS0 550 P105 46 lt P6 1 CLKO Klo AN4 P104 45 gt P62 RxD0 SCLO STXDO AN3 P103 44 TxD0 SRxDO AN2 P102 43 P64 CTS1 RTS1 SS1 1 101 42 P65 CLK1 AVss 41 lt yss ANO P100 140 RxD1 SCL1 STxD1 VREF 39 lt Vcc 38 P67 TxD1 SDA1 SRxD1 1 11111111111114111111111111111111111 AAA O STxD4 SCL4 RxD4 ADTRG P97 gt NOTES 1 TADOUT TxD2 SDA2 SRxD2 INPC16 OUTC16 2 P7o and P71 ports for the N channel open drain output 3 The supply voltage of M32C 84T must be Vec1 Vec2 p LQ p 0 1 44 KA A 144P6Q A ISI IIS 8853858 32 258 52258288 amp amp amp k z 8 8 gt 2 0 52555258 0528 5555 1 325524242422 lt 22 gt 35884595 ress 2532355329228 5555585 TE Elgg 23222 2258 s Passi qa u 2 speck 3 8 z 13358 2 gt gg 55557 5 232 9 b 22982 Oo z o
37. SHOWN ON PICTURE SD CARD HARNESS INSERT TO CN2 gt DM S I KB JUMPER LEAD INSERT CN3 11pin gt lt JUMPER LEAD INSERT TO CN1 10pin 90 ECR 7900 Service Manual Y108540 8 12 FIX SEMI SET TO BOTTOM CASE SEMI SET 13 FASTEN 2PCS SCREW TOP CASE TO BOTTOM CASE Y108540 8 ECR 7900 Service Manual 91 92 DEPOSIT DRAWER U U ccm ECR 7900 Service Manual 14 FIX KEY FRAME TO TOP CASE PRESS UNTIL IS LOCKED 15 COPLETE AND FUNCTION TEST Y108540 8 8 CIRCUIT DIAGRAM 1 2 3 4 5 6 7 8 R1 10K 4 DRWON DRW ON VBB VBB gt gt wo wo TTE ala 9 S D 0 D 00 7 gt KRON amp U1 DIS Do 2 2 am 0 D sss D2 DU 5 D3 M zu pa EH D4 5 SINE 7 De D5 2 be 2 D6 A 19 A D7 RT 2 w LL dl EEEEEEE 10 um gt 8 Afi 6 m o EI MD 5 A10 011 R17 SS 11 012 10K Als 4 41 2 4 lt lt ame e 013 x o 19 col 09 ol 715 2 A13 D4 O1 01 Oj O O O O O 16 1 14 mE 15 FRDY AIT ANS RYBY 18 17 16 VBB 17 5 AS 16 Nicims 10K UTE VBB NC gt
38. TOTAL AG eier 8 ECR 7900 Service Manual Y108540 8 OPERATOR AND CUSTOMER DISPLAYS The operator LCD display has a Menu system providing access to all cash register functions You can raise and tilt the display to obtain the most comfortable viewing position The pop up single line customer display can be raised and swivelled to obtain the most favorable position for customer viewing When sales transaction data is not displayed scrolling messages can be programmed to appear according to the cash register state idle off and so on SWITCHING THE OPERATOR DISPLAY ON To switch on the operator display press the Leg key on the keypad The Main menu is displayed from which you can select e Registration mode to enter sales transactions as a clerk also in training mode e Manager mode to enter all sales transactions as a Manager also in training mode e X1 amp X2 Report mode to print X financial reports e Z1 amp Z2 Report mode to print Z financial reports e Programming Mode to set up the cash register and program sales functions e Off mode to switch off the menus and the operator display oee Using the Menus for how to navigate the menus NOTE The first time you switch on the cash register it must be initialized see Quick Start Programming SWITCHING THE OPERATOR DISPLAY OFF To switch off the operator display first terminate any sales transactions then 1 Press m display the Main m
39. The VPW circuit uses 26 5V AC across pins 4 and 5 of CN12 This AC voltage is rectified by D4 a 15 154 diode and filtered by EC13 The resulting DC voltage is about 30V It is supplied to the collector of Q12 a 25A1284D transistor and base voltage is controlled by ZD8 VPW is approximately 28V DC This voltage is used by the display VF The filament voltage VF1 VF2 are used by the display tube Its AC input is 4 3V and uses a ground reference 23V from the 28V circuit dropped across ZD9 and R181 R182 a 470 ohm resistor Fuse for Secondary side F1 250V 1 6A TR 5 19370 1 6A F2 250V 3 15A MRT3 15A F3 250V 1 6A TR 5 19370 1 6A F4 250V 1A TR 5 19370 1A F5 250V 500mA TR 5 19370 0 5A Y 108540 8 ECR 7900 Service Manual 21 POWER SUPPLY CIRCUIT continued Trouble shooting STEP 1 Check the voltage DC 5 0V at point 1 If it does not output properly Check FUSE F2 amp F3 continuity and replace it if OPEN Check the voltage DC 3 3V at point 2 If it does not output properly Check FUSE F2 amp F3 continuity and replace it if OPEN Check the voltage DC 3 3V at point 2 If it does not output properly Check FUSE F2 amp F3 continuity and replace it if OPEN Check the voltage DC 7 6V at point 4 If it does not output properly Check FUSE F1 amp F2 continuity and rep
40. Wizard Driver Files Search Results The wizard has finished searching for diver files for your hardware device 68 ECR 7900 Service Manual Y108540 8 10 The driver s installation is completed by this operation Please click Finish Found Mew Hardware Wizard Completing the Found New Hardware Wizard lt gt USB COM test Windows has finished installing the software for this device To close this wizard click Finish Eancel 11 Next please confirm whether the driver was normally installed Please right click at the My computer and click Properties Documents Mv Computer Open Explore gc Search w Manage My Network Places Map Network Drive Disconnect Network Drive r Create Shortcut Recycle Bin Rename Properties Internet Explorer Connect to the Internet 169 5 251 Y108540 8 ECR 7900 Service Manual 69 12 Click the HardWare tab System Properties System Microsoft windows 2000 5 00 2195 Registered to clever Computer Intel A Celeron T I CPU COMPATIBLE 515 568 KB carcel 13 Click the Device Manager System Properties x 2 2 gt x General Network Identification Hardware User Profiles Advanced Hardware Wizard The Hardware wizard helps you install uninstall repair unplug eect and configure your hardware Hardware Wizard
41. al status and number of free EJ lines 1 we Using and the LCD contrast can be adjusted When operated during a sales transaction allows multiple quantities to be specified for a sales item Y 108540 8 ECR 7900 Service Manual T X date 16 Clears an entry made from the numeric keypad or before finalizing a transaction with a Department or function key Also used to clear error conditions In caption programming deletes any caption characters entered before pressing pm nd AG enter In Off mode activates menu for resetting cash register code appropriate department When programming PLUS to display a given PLU enter its number then press this key 17 Price look up function Registers the preset price of an individual item to the 18 Temporarily overrides a price that was assigned to a PLU number During caption programming when pressed before a character sets the character as double width e lt Dini 19 Pop up list 4 allowing Paid Out P0 or Received on Account RA transactions As the P0 key registers any money taken out of the cash drawer that is not part of a sale AS the RA key registers any money received on account that is not part of a sale for example the start up money put in the drawer at the start of each business day can be registered as RA 20 Pop up list 3 allowing direct percent discounts and add on operations as the 1 or 2 key whe
42. an lines are the CPU ports these CPU ports are P120 126 and P130 137 Keyboard Return lines are the CPU ports these CPU ports are P140 145 It is consist of matrix of Scan line 15 x Return line 6 KEY MATRIX 1 KEY RINO 2 KERIN 4 KYRNE KEY SCNO ES KEY SNI aa 9 KEYS 1 KEY SCN4 2 DENE 5 KEY SCN7 I 5 KEYS KEY SN al ns 5 6 2 2 amp 2 amp E E 4 ___ 46 45 ___ 44 ___ ago a 41 40 ___ o a B ___ 36 395 s 34 33 mS 32 T 31 30 m 0 4 o 0 4 co 0 4 2 ___ 26 25 2 24 ___ a 2 21 20 _ 0 o 0 1 0 4 lA ___ 16 14 12 e 11 10 ___ o oy co 0 4 0 ___ 06 TN 05 t 04 _ _ 03 D 02 ERA 01 _ _ o KEY RINO 4 4 5 5 KEY LAYOUT Trouble shooting All keys do not work at all Replace Main board Only a specific key does not work Check the lead wire Lead wire is broken Replace Lead wire Lead wire is not broken Replace K B unit When it s not broken replace K B unit Y108540 8 ECR 7900 Service Manual 33 3 10 DRAWER CIRCUIT The solenoid for a drawer is activated using the signal P110 from the CPU This sig
43. compartment cover with receipt output window 10 USB interface for connecting the computer for cash register programming See the note below 11 5232 serial interface for barcode reader 7 From the company website you can download the software needed to program the cash register directly from your computer 2 ECR 7900 Service Manual Y108540 8 CASH REGISTER SPECIFICATIONS Technical Characteristics Listed below are the technical characteristics of this cash register model Type Electronic cash register with clamshell thermal printer 10 departrnent groups 99 departrnents 15 derks up to 3 000 PLU settings Max 12 000 line Electronic Journal internal memory expandable via memory storage device Removable cash drawer Displays 160x80 dot tiltable Operator LCD for displaying all transaction data with menu system for cash register programming 1 O digit Client alohanumeric display Symbols for change subtotal minus total foreign currency value department number and item count shown Capacity 8 digit input and readout Printer 24 column line thermal printer with drop in paper loading Paper supply 58 5 0 5 mm thermal paper Batteries 3 3 standard size batteries which safeguard memory contents in the event of power failures Technology CMOS RAM Powercons Standby 12 1 W Operating41 8W Operating 32 104 F 0 C 40 Temperature Dimensions 10 mm W x 430 mm D x 294 mm
44. de might have started up the LOADER already Click STOP button first and then click ENQ button to confirm the condition of the ECR If the LOADER is already started up go ahead to Y108540 8 ECR 7900 Service Manual 61 PC side 13 When it s connected to ECR it shows Boot OK 14 When it successfully done the deletion it shows OK 62 ECR 7900 Service Manual Y108540 8 15 Click UP LOAD button Up Loader Ver 1 05 Select the file you wish to download Prt 3 soft file er680_ver030 bin er680 ver037 bin Click Open 16 It shows a status for transmitting Up Loader Ver 1 05 so 11441890 Y108540 8 ECR 7900 Service Manual 17 It shows Up Load OK Up Load OK 18 Click Ver button Up Load OK C 64 ECR 7900 Service Manual Y108540 8 19 It shows the version which was transmitted 20 Click RUN button Up Load OK VER 1 22 2006 04 04 DEBRIS ECR will be started up by the software loaded just now Now that the machine has installed new software it is required to check its functions are properly installed or not Please go back to section 3 DIAGNOSTIC SOFTWARE to check the machine Y108540 8 ECR 7900 Service Manual 65 5 1 USB driver install 1 Preparation This driver is USB COM conversion driver When the driver is installed virtual COM RS2
45. e with the printing data stored in the latch register Each 144 dot block for LTPC235 are printed Sensor This printer has Head up sensor and Paper end sensor Both signals normally outputs Low but it out puts High when Head up or Paper end This High signal goes through Nor gate and changed Low then it is input into CPU U1 Excitation Sequence As shown in Table 3 14 1 the printer feeds paper in the normal direction when the motor is excited in the order of step 1 step 2 step 3 step 4 step 1 step 2 by inputting the voltage signals in Figure 3 14 1 PH1 PH2 PH3 PH4 rr rr rr I 1 DOT LINE Figure 3 14 1 Input Voltage Signals for the Sample Drive Circuit Lo mtm sign PHi PH2 PH3 PH4 A B A Se2 L H H L L H Sep3 HI H H Table 3 14 1 Excitation Sequence Y108540 8 ECR 7900 Service Manual 43 Motor and Thermal Head drive timing A B C 1st dot line D 2nd dot line STOP START 1 i i x i Iststep 2ndstep iststep 2nd step i a Figure 3 14 2 2 Division Printing Timing Chart 14 cxL e e ECR 7900 Service Manual 7 Y1108540 8 PRINTER CIRCUIT RDI RI 15K F Jj lt 1 VCC5 PS N G Q O O 2 52147 0910 A IN4 OUT2 14 10 B GND2 OUT4 52147 1310 LBI836M Trouble shooting Cannot print or cannot Feed paper
46. enu 2 Use to scroll to the option Off Mode TOTAL 3 Press Er eier SYMBOLS AND MESSAGES The Operator Display OD and Customer Display CD symbols and messages can be understood as follows REGISTRATION MODE 4 n a Training mode 4 n a Hold mode A transaction has been temporarily put on hold 4 n a Recall mode A transaction on Hold has been recalled for completion ZNS 3 n a Receipts Off no receipts are issued until is pressed again 3 EJ nearly full condition Clerk Id n a If the Clerk System is active the clerk number name is displayed after logon at top left Y108540 8 ECR 7900 Service Manual 9 Dept Indicates Dept dept dept name OD entered name number CD or no EOS Indicates a sales transaction paid by cash EXT Indicates a sales transaction paid by check Credit Cr Indicates a sales transaction paid by credit card Indicates a sales transaction paid by charge card Displays a minus sign if the subtotal or cash tendered total is a negative number due to a return or refund Indicates that amount displayed is the change due to the customer ST Indicates that the amount shown is the subtotal of a transaction including sales tax if applicable oma Indicates the total due from the sales transaction OD top left FC name Indicates an amount registered in a foreign currency left side CD E amounts entered and sales totals max 8
47. h change tendered on all payments 4 different VAT rates with temporary override oales transaction hold and recall function Battery back up protection for sales transaction and programming data Programmable clerk operating limitations for enhanced security Payment transfer from one payment media to another after transaction completion Single line customer display with programmable scrolling messages LCD operator display with Menu system f or accessing all cash register functions Optional passwords for Manager mode X report mode and Programming Z report modes PLU rapid inquiry key PLU fast programming key Programmable VAT details printing on sales receipts Multi lingual interface f or customer receipts management reports and display messages in Danish Dutch English French German Portuguese Spanish and Swedish User defined captions in any language for printing on receipts and reports Keypad personalization through reassignment of keys Programmable key sequences executed by actioning single chain function keys Sales function selection via pop up lists Barcode reader connectivity Y 108540 8 ECR 7900 Service Manual 1 ECR 7900 CASH REGISTER COMPONENTS With reference to figure 10 1 Customer display 2 Operator display 3 Keypad 4 Cash drawer and box 5 Cash drawer lock and slot 6 Item deposit drawer 7 Power cord 8 Storage Device SD under printer compartment cover 9 Printer
48. his device so that choose a specific driver lt Back Cancel checking Specify a location Found New Hardware Wizard Locate Driver Files Ru Where do want Windows to search for driver files Search for driver files for the following hardware device o Default The wizard searches for suitable drivers in its driver database on your computer and in any of the following optional search locations that specify start the search click Nest IF you are searching on a floppy disk or CD ROM drive insert the Floppy disk before clicking Next Optional search locations Floppy disk drives CD ROM drives Specify a location RE Microsoft Windows Update lt Back Cancel 6 The folder selection screen is displayed Click the Browse Found New Hardware Wizard Insert the manufacturer s installation disk inta the drive selected and then click Cancel Copy manufacturer s files from DAENGLISH WINZO00 PRO Y108540 8 ECR 7900 Service Manual 67 7 Please open the folder that is preserved Win2kcom inf and click Open after selecting the file Locate File New Folder Winzkcom History Network 8 Click the Found New Hardware Wizard Ed CAM ew Folder 9 Click the Next Found New Hardware
49. lace it if OPEN Check the voltage DC 24V at point 5 If it does not output properly Check FUSE F1 continuity and replace it if OPEN Check the voltage DC 28V at point 6 If it does not output properly Check FUSE F5 continuity and replace it if OPEN Check the voltage AC 3 9V at point 7 If it does not output properly Check FUSE F4 continuity and replace it if OPEN STEP 2 After replacing FUSE at STEP 1 but the FUSE opens again Replace Main board No voltage at all the points from 1 to 7 Replace Transformer 22 ECR 7900 Service Manual Y108540 8 3 2 TRANSFORMER WIRING DIAGRAM PrimaryFuse AC250V T500rAL CT 89E IN m 1 AC24V 2 3 Input Voltage 4 AC230V 50Hz 7 1 ACA 8V Trouble shooting Check the Continuity at Primary FUSE If its OPEN Replace Fuse After replacing FUSE but it opens again Check Power Supply circuit P 9 10 Check the Thermal Fuse Check the voltage AC 4 8V at point 1 6 pin and 7 If it outputs almost OV Replace Transformer Y108540 8 ECR 7900 Service Manual 23 3 3 M30842MC Refer to the specification attached 1103 lt 16 D14 INT4 1102 lt p 17 015 INT5 94 dp P27 A7 D7 AN27 93 lt Vss 108 eu 11 Do 107 lt 12 D10 106 ee 13 D11 1105 14 D12 1104 15 D13
50. ly circuit P 9 11 St 30 ECR 7900 Service Manual Y108540 8 LCD Module VCC5VF2 VCC5 VCC5 n 1000pF CIB 100pF 1 VH B 2 vc 3 GND 4 5 6 Lt 1 2 8 VE B8BPH K S T 100uF 50V FED 2216 Trouble shooting Check the power supply of Display tube Check voltage AC 3 9V at point 3 If it outputs properly Replace Customer Display Unit If it doesn t output properly Check Power supply circuit P 9 11 Check voltage DC 28V at point 4 If it outputs properly Replace Customer Display Unit If it doesn t output properly Check Power supply circuit P 9 11 Check voltage DC 5V at point 5 If it outputs properly Replace Customer Display Unit If it doesn t output properly Check Power supply circuit P 9 11 Y108540 8 ECR 7900 Service Manual 31 3 8 DISPLAY INFORMATION Front Display LCD 160 x 80 dots Part No GY1608A8SKY6T Refer to the specification attached Rear Display VFD 16 segments Part No 10LY 01G Y M IM M NM M NM NM M IV VN VN G10 G9 G8 G G6 G5 G4 G3 C2 G1 Segment h f e Y p 22 J gr Sn 91 d2 Union Jack Character size 14 mm H x 4 9 mm W 32 ECR 7900 Service Manual Y108540 8 3 9 KEYBOARD CIRCUIT Keyboard Sc
51. n appropriately programmed applies a preset percentage reduction or add on to the price of an item or to the sales total As the 1 or 2 key subtracts or adds an amount from to an item or sales total 74 21 Opens the cash drawer without registering any amount or when changing cash for Next a non sales transaction When programming entities such as clerks PLUs depts and so on press Pa to display the next item in numeric sequence i e clerk O1 clerkO2 and so on 22 When the operator display is off this key switches it on When the display is on pressing this key displays the Main menu The Main menu contains the Off mode option which you can use to switch the operator display off During a clerk transaction allows you to switch to Manager mode to perform operations disabled for the clerk Pressing the key again afterwards switches back to the clerk transaction t 23 In Programming mode these keys can be used to move through the menu K y E options and form fields in the direction indicated on the key TOTAL ind RG When the menu item required is highlighted press to select it When navigating forms if me numbers are present on the left jump to the line you want by entering its number followed by either arrow key 24 In Programming mode when selecting data for preset value fields use these keys to scroll through the values available highlight the value wanted and then select with
52. nager mom m 224 CLOVER G3YP67WA 9 88 Computer H Disk drives 8 Display adapters DVD CD ROM drives Ee Floppy disk controllers a Floppy disk drives 1 2 IDE ATA ATAPI controllers 9 8 Keyboards 8 Mice and other pointing devices 8 Monitors 8 89 Network adapters ER amp LPT ommunications Port 1 Communications Port COM2 4 Multiport Communications Port E Multiport Communications Port COM4 I Multiport Communications Port COMS Multiport Communications Port COM6 I Printer Port LPT1 eq Sound video and game controllers H System devices Universal Serial Bus controllers H 4 Execute Up Loader You can find the icon as shown 2 Up Loader Ver 1 05 Y108540 8 ECR 7900 Service Manual 5 Set the COM Port number using Com set button Comm Port um gt C 19200 f 38400 set the COM Port number which you checked at 3 Click OK ECR side 6 Unplug the power and remove the battery 7 Connect the cable to PC PC side 8 Click OK 60 ECR 7900 Service Manual Y108540 8 9 Click Boot button 10 Up Loader is waiting for the ECR start up ECR side 11 Turn on the power with depressing 1 and 9 of ten key together When the connection to PC is confirmed it beeps twice Pi Pi 12 If it doesn t perform properly at this stage ECR si
53. nal is normally Low and goes High to cause the drawer to run When P110 is High Q2 is on Current flow through the transistor cause the collector to be held Low near grand potential VDRW CN 1 2 3 1 T gt gt B3P SHF 1 A DAWN B E 4K 250986 d Ro H 5 O O 10K PG PG Trouble shooting Drawer remains opened Drawer does not close Check the voltage at point 1 DC 3 3V Replace Main board OV Replace the Drawer unit Drawer remains closed Drawer does not open Check whether or not the drawer opens by emergency lever If drawer opens It should not be considered a mechanic problem Check the voltage at point 1 If drawer does not open It should be considered a mechanic problem Replace the drawer unit 34 ECR 7900 Service Manual Y108540 8 3 11 BUZZER CIRCUIT The buzzer circuit uses as its input signal P74 from the CPU This normally Low signal and goes High on 2 conditions First on an error tone P74 goes Clocked until the error condition is cleared For a key beep tone P74 goes High and then returns to its Low state This pulse is of extremely short duration VDRW QB DTCI43EKA Trouble shooting No buzzer sound when clear key is depressed Check the voltage at point 1 DC 24V Replace Main board OV Check Power supply circuit P 9 11 Y108540 8 ECR 7900 Service Manual 35 3 12 BATTERY CIRCUIT VB
54. ns Print Control Do Keyboard 9 83 MHz Drawer Main Clock Sol Driver 32 768KHz Sub Clock A0 A19 DO D7 CS WE OE RS232C RS232C Driver Interface AO A18 USB D0 D7 Interface CS WE OE SD CARD Interface VCC5 VCC3 VPRN VBB s VPW Power supply Dry Battery VF 1 Y108540 8 ECR 7900 Service Manual 19 2 IROUBLE SHOOTING GUIDANCE In the event following abnormal symptom happened refer to the solution corresponding to its symptom Check point Detailed symptom Symptom Page No Power Check the Power supply circuit Try STEP 1 amp 2 P 9 11 If Power supply circuit is OK check RESET circuit Winding reel does not work Start up Diagnostic software P 17 If it doesn t work through the Diagnostic software start Diagnostic software again and check voltage Main display does not work properly No display but backlight turns on x x Display OK but backlight does not turn on P 18 No display No backlight P 18 Rear display does not turn on Check the power supply of the display tube Key operation unable All keys do not work at all Only a specific key does not work Drawer does not open Drawer does not open when it is not locked by a P 22 drawer lock key Drawer does not close Drawer remains opened or does not close 8 Buzzer does not beep No buzzer sound when clear key is depressed Cannot work memory backup Check whether the batteries are
55. nsists of data bus A16 P41 is multiplex bus that consists of data bus A17 P42 is multiplex bus that consists of data bus A18 P43 is multiplex bus that consists of data bus A19 P47 is used for chip select at RAM P52 is used for Output Enable P50 is used for Write Enable control i w s s EXTERNAL MEMORY CIRCUIT 4 _ D15 A1 1 5 m AD 24 0 3 23 22 2 20_ ne AT 19 18 9 8 ATO 7 A9 AM 6 A10 12 At A13 4 A12 14 3 A13 15 2 14 16 Dis 17 48 16 18 17 19 Ho Ne 43 NC NC WR M u RD 28 DE ROM 26 CO EN 12 RESET 100pF S29ALOOID7OTFIOIO 40 ECR 7900 Service Manual Y108540 8 FROM PIN Configuration Refer to the specification attached data sheet Marking Side Y108540 8 ECR 7900 Service Manual BYTE Was Dia DG Dis Dis Dein Dis 18 Dita Dis Da OE GE 41 42 ECR 7900 Service Manual Y108540 8 3 14 PRINTER CIRCUIT Thermal Head The thermal head of the printer consists of heat elements and head drivers to drive the heat elements Serial printing data input from the DAT IN pin is transferred to the shift register synchronously with the CLK signal then stored in the latch register with the timing of the LATCH signal Inputting the head activation signal activates heat elements in accordanc
56. o feed paper Pulling the paper tape could damage the print mechanism 4 ECR 7900 Service Manual Y108540 8 UNPACKING AND SETTING UP THE CASH REGISTER STANDARD ACCESSORIES The cash register comes with the following items e One black plastic journal winder spindle e One roll of standard paper tape e Three standard AN size batteries for the battery back up system e The multilingual User s Guide Reference Guide in English and Warranty Card Setup Poster A set of keys for looking the cash drawer Make sure that the cash register and all of the above items are included in the shipping canon Open the cash register s shipping carton and carefully withdraw each component Make sure that the cash register and all al its accessories listed in the section entitled Standard Accessories are present in order to setup the cash register by following these guidelines 1 Place the cash register on a level stable vibration free and dust free surface Make sure it is near a power outlet compliant will the latest safety standards 2 Plug the cash register into a power outlet compliant with the latest safety standards 3 Insert memory backup batteries as explained in the section entitled Inserting Replacing Batteries Do not insert the batteries unless the cash register is plugged into an electrical power outlet WARNING The machine must be plugged into an electrical outlet before you insert the batteries 4 Load the thermal paper r
57. oll as explained in the section entitled Loading Thermal Paper 5 Set the desired program options as explained in the section Cash Register Programming Y108540 8 ECR 7900 Service Manual 5 THE KEYPAD FOR ECR 7900 The figure below shows the keypad layout 3 4 KEYPAD FUNCTIONS The keys described here are those configured by default on the cash register keyboard shown in figure 5 The symbol indicates that the key is also used in caption programming 9 NOTE The keys can be reconfigured using the Free Key Layout option in Advanced Settings if required e 1 Advances the receipt or journal paper one me feed advances the paper continuously when held down Interrupts report printing when kept depressed E 2 Pop up list 2 allowing EC VOID FULI VOID or REFUND operations to be performed As EC VOID deletes the last item entered and corrects a particular entry after it is processed and printed FULL VOID deletes full entries after a subtotal As REFUND subtracts an item that is returned for refund sales and activity totals are also rectified clerk amp 3 As CLERK confirms the clerk code entered As the ESC key in programming mode displays the previous menu or exits caption programming receipt on off x 4 Toggles cash register between printing and not printing the sales receipt in registration and manager modes S Allows price entries for departments 20 38 and 39 99 Fo
58. or a detailed specification 6 Restriction of use This driver emulates the RS232C operation by the USB connection The following usage restrictions are generated under the WindowsAPI environment 1 COMSTAT structure Neither fXoffHold nor fDsrHold are detected automatically Please note that this function cannot be used by the application Please correspond by the following content when using it 1 fXoffHold Please examine receive data from the device by the application and judge the Xon Xoff character directly 2 fDsrHold Please use GetCommModemStatus API Sample is follows C language sample source DWORD ModemsStat GetCommModemsStatus hCom amp ModemsStat if ModemStat amp MS_DSR_ON DSR signal is on Device is not busy else DSR signal is off Device is busy 2 Virtual COM RS232C port Please do not turn off the power supply of the device and do not pull out the USB cable while having opened virtual COM port by the application After that the port might not be able to be used until the personal computer is rebooted 72 ECR 7900 Service Manual Y108540 8 6 ASSEMBLY INSTRUCTION 6 1 TOP CASE UNIT RE 1 FIX KEY TOP SHEET TO KEY SZ ON TOP SIDE CAP THEN FIX TO BASE TOP KEY KEY CAP 1X2 m RUNNER GATE POSITION ON LEFT SIDE KEY TOP SHEET 2 FIX PWB UNIT TO KEY FRAME WITH FLAT IT MUST BE 4 ON FITTING BOSSES POSITION p THEN FASTENING 15PCS SCREW
59. r departments 20 38 press this key before pressing the corresponding department key For departments 39 99 press this key manually enter the department number using the numeric keypad and then press this key again man 6 Holds and then recalls a sales transaction so that a second transaction can be D performed in the meantime In caption programming toggles between caps on off to allow captions to be written in upper or lower case letters 6 ECR 7900 Service Manual Y108540 8 2 T Transfers payment from one form of payment media to another after the sales transaction is finalized 8 Pop up list 5 allowing FC or TAKE OUT sales operations to be performed As FC automatically calculates and displays the value in foreign currency of the subtotal of a sale or of a particular amount registered As the TAKE OUT key modifies temporarily the tax status associated with a PLU code payment 10 Subtotals a sale 9 Pop up list 1 allowing transaction payment to be registered to a check charge card or one of six credit cards E 11 As the TOTAL key totals exact cash transactions computes change and a totals transactions that are split tendered with check credit card and or cash Pressed a second time prints one or more copies of the last receipt depending on how multiple receipts are programmed see Receipt Printing Mode As ENTER in Programming mode selects
60. roll in the bottom of the printer compartment so that the paper feeds out from the bottom of the roll 6 Lower the clamshell mechanism and secure it in place by pushing it all the way down until it clicks into pace 7 Replace journal winder with wheel to right of compartment 8 Pass the edge of the customer receipt through the receipt window on the compartment COVer 9 Insert the edge of the paper into the paper slot as shown below Reposition and dose the printer compartment cover Y 108540 8 ECR 7900 Service Manual 13 14 ECR 7900 Service Manual Y108540 8 1 PRODUCT OUTLINE 1 1 HARDWARE The terminal uses 32 bits single chip microcomputer The CPU has 128K bytes of internal MASK ROM and 10k bytes internal RAM 512kbytes FROM 512kbtes S RAM of external memory This terminal uses 160 x 80 dots LCD and 10 digits 16 segment VFD This terminal also has a battery backed up clock that keeps track of the month day of the year hour and minute The printer is SII LTPC 235 that is a line thermal printer developed for ECR use 1 2 DISPLAY Front Display is 160 x 80 dots Multiline LCD Rear display is 10 digits 16 segment VFD Front Display Rear Display 160 x 80 dot matrix 10 digit VFD MultiLine LCD 1 x Alphanumeric Adjustable Display Angle LCD Housing 14mm C H x 4 9mm View area 89 0mm x 47 5 Y108540 8 ECR 7900 Service Manual 15 1 3 KEYBOARD The keyboard consists of Stroke 42 keys
61. t consists of data bus 0 7 P30 through P37 are multiplex bus that consists of data bus A8 A15 P40 is multiplex bus that consists of data bus A16 P41 is multiplex bus that consists of data bus A17 P42 is multiplex bus that consists of data bus A18 P45 is used for chip select at RAM P52 is used for Output Enable P50 is used for Write Enable control EXTERNAL MEMORY CIRCUIT U3 AO 12 m DO 13 DO M 11 D1 14 D1 A2 10 15 D2 2 D2 3 9 17 D3 D3 8 18 D4 M D4 5 7 19 D5 5 D5 6 6 20 D6 06 5 21 D7 A7 D7 8 27 18 9 26 A10 23 A10 11 25 11 12 4 AT A13 28 A13 A14 3 A14 A15 31 M5 A16 2 VBB 17 30 16 AiG A17 CE2 32 c9 A18 A17 VCC CR RAUCH 22 WRA 29 16 0 OluF ED 24 WE GND E BS62L V4006SCP 70 CB lii 38 ECR 7900 Service Manual Y108540 8 S RAM PIN Configuration Refer to the specification attached data sheet AE 32 5 Air A12 WE AT A13 Ab AB AS AB Ad A11 A3 24 1 OE AZ AID A1 25 AD DO DOS Daz po GND Y108540 8 ECR 7900 Service Manual 39 3 13 2 FROM S29AL004D70TFI010 512K bytes FROM is used as programming POO through are multiplex bus that consists of data bus DO D7 P20 through P27 are multiplex bus that consists of data bus 0 7 P30 through P37 are multiplex bus that consists of data bus A8 A15 P40 is multiplex bus that co
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