Olivetti ECR 7900 Service Manual Download

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Cash Register

ECR 7900

SERVICE MANUAL

Code Y108540-8

Summary of Contents for ECR 7900

Page 1: ...Cash Register ECR 7900 SERVICE MANUAL Code Y108540 8...

Page 2: ...a 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 equival...

Page 3: ...TOR DISPLAY ON 9 SWITCHING THE OPERATOR DISPLAY 0FF 9 SYMBOLS AND MESSAGES 9 PROGRAMMING MODE Operator Display 11 PRINTER COMPARTMENT 12 1 PRODUCT OUTLINE 15 1 1 HARDWARE 15 1 2 DISPLAY 15 1 3 KEYBOAR...

Page 4: ...62LV4006SCP 70 38 3 13 2 FROM S29AL004D70TFI010 40 3 14 PRINTER CIRCUIT 43 3 15 INTERFACE CIRCUIT 46 4 DIAGNOSTIC SOFTWARE 48 4 1 DIAGNOSTIC CHECK FINISHED GOODS CHECK 48 4 2 SOFTWARE VERSION CHECK 56...

Page 5: ...pters describe the operating functional checks and maintenance procedures Chapter 3 describes the disassembly and reassembly procedures Chapter 4 gives troubleshooting repair information while Chapter...

Page 6: ......

Page 7: ...currency exchange rates with reIated currency descriptors Cash check charge card and 6 other credit card tender media keys with change tendered on all payments 4 different VAT rates with temporary ove...

Page 8: ...deposit drawer 7 Power cord 8 Storage Device SD under printer compartment cover 9 Printer compartment cover with receipt output window 10 USB interface for connecting the computer for cash register p...

Page 9: ...erator LCD for displaying all transaction data with menu system for cash register programming 1 0 digit Client alphanumeric display Symbols for change subtotal minus total foreign currency value depar...

Page 10: ...d 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...

Page 11: ...es 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...

Page 12: ...etes full entries after a subtotal 1As REFUND subtracts an item that is returned for refund sales and activity totals are also rectified 3 As CLERK confirms the clerk code entered As the ESC key in pr...

Page 13: ...a department number from 1 to 19 press the corresponding key To enter a department number from 20 to 38 press first the key then the corresponding department key For department numbers from 39 to 99 s...

Page 14: ...y 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 21 Opens the cas...

Page 15: ...o print X financial reports Z1 Z2 Report mode to print Z financial reports Programming Mode to set up the cash register and program sales functions 0ff mode to switch off the menus and the operator di...

Page 16: ...e number due to a return or refund Change C lndicates that amount displayed is the change due to the customer ST lndicates that the amount shown is the subtotal of a transaction including sales tax if...

Page 17: ...isplay Ref 1 Navigation Mode Ref 1 Data Entry Mode Lowercase Ref 1 Data Entry Mode Uppercase letters Ref 2 In Navigation Mode field selection Ref 5 In Navigation Mode indicates a menu option appears o...

Page 18: ...G 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 c...

Page 19: ...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...

Page 20: ...14 ECR 7900 Service Manual Y108540 8...

Page 21: ...0 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 develo...

Page 22: ...16 ECR 7900 Service Manual Y108540 8 1 3 KEYBOARD The keyboard consists of Stroke 42 keys with key caps except numeric keys Department keys and letters for programming Numeric keys Amount tender key...

Page 23: ...Y108540 8 ECR 7900 Service Manual 17 1 4 DRAWER The drawer type is DSCA 4 Bill 8 Coin with D DRAWER 8Coin tray 4 Bill tray D Drawer...

Page 24: ...inter is SII LTPC 235 that is a line thermal printer developed for ECR use 58mm 1 Station Thermal Printer 1 6 INTERFACE RS232C for Barcode Reader USB for PC communication and SD memory card slot USB I...

Page 25: ...k 32 768KHz Sub Clock Print Motor Printer Main CPU Display Rear Display Keyboard Key scans Return Drawer Sol Driver Control LTPC235 Control M30842MC Control 10digits 16segment VFD Front Display 160 x...

Page 26: ...t work at all P 21 5 Key operation unable Only a specific key does not work P 21 6 Drawer does not open Drawer does not open when it is not locked by a drawer lock key P 22 7 Drawer does not close Dra...

Page 27: ...rinter 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 D...

Page 28: ...ansformer 1 2 3 4 5 6 7 CN12 B7P SHF 1AA F2 MRT 3 1 5A F5 TR 519 3700 5A F4 TR 519 3701 A A K D4 1SR154 400 B E C Q1 2 2SA 1284 D EC13 100 uF_6 3V R1 03 10K R1 74 3 3 K A K ZD8 RD30EB 3 R1 04 10K SC 1...

Page 29: ...e AC250VT500 mAL Input Voltage 50Hz 1 2 3 4 5 6 7 Trouble shooting Check the Continuity at Primary FUSE If it s OPEN Replace Fuse After replacing FUSE but it opens again Check Power Supply circuit P 9...

Page 30: ...24 ECR 7900 Service Manual Y108540 8 3 3 M30842MC MICROCOMPUTER Refer to the specification attached...

Page 31: ...R O M C S FLASH M em or y Sel ect O P U O H O H Pr ogr am R O M 0 65 W R L W R I O W R W r i t e Si gnal SI O M ode C S O I P U O H C PU C ont r ol Si gnal 1 64 W R H BH E I O N C O O L f or Fl ash C...

Page 32: ...an 2 O p u O L O L 3 56 I O KS3 Key Scan 3 O p u O L O L 4 51 I O KS4 Key Scan 4 O p u O L O L 5 50 I O KS5 Key Scan 5 O p u O L O L 6 49 I O KS6 Key Scan 6 O p u O L O L 7 48 I O KS7 Key Scan 7 O p u...

Page 33: ...acitor Output of Reset IC U10 is low resistance at VBB Line is less than 3 0 Volts RESET R1 07 4 7 K RESET RE SET VBB VBB VOUT 1 VDD 2 GND 3 N C 4 C T 5 U1 0 BD5230G TR C2 9 0 1 uF C1 41 470 0pF TP 11...

Page 34: ...ply detector circuit of the CPU works and execute PF NC 1 IN 2 NC 3 GND 4 CA P 5 OUT 6 VCC 7 NC 8 U8 M5 1957B FP C1 34 0 1 uF C1 33 0 1 uF R1 71 1 5 K_F R1 72 3 9 K_F VCC5 VCC3 PF PF C1 35 10 00pF Pow...

Page 35: ...rinting on a receipt Note When a printer is not working the power supply of the winding motor should be OFF status 0V Therefore make sure the following voltage should be checked during the printing in...

Page 36: ...D1 D2 D3 D4 D5 D6 D7 RD A0 LCD_RS T WR LCD_CS B E C Q6 DTC143 EKA B E C Q7 2SA 1036 K R1 68 2K VCC5 R9 8 10K BKL_ON RD A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 G1 1 G2 19 Y1 18 Y2 17 Y3 16 Y4 15 Y5 14...

Page 37: ...6 B TC74VHCT24 4FT R7 9 33 R8 0 33 R8 1 33 FB 9 0 3 216 EC 17 100uF_50V C143 1000pF C142 1000pF Trouble shooting Check the power supply of Display tube Check voltage AC 3 9V at point 3 If it outputs p...

Page 38: ...Front Display LCD 160 x 80 dots Part No GY1608A8SKY6T Refer to the specification attached Rear Display VFD 16 segments Part No 10LY 01G G10 G9 G8 G7 G6 G5 G4 G3 G2 G1 Segment a1 a2 f h j k b g m e r...

Page 39: ...KEY SCN4 KEY SCN3 KEY SCN2 KEY SCN1 KEY SCN0 49 39 29 19 09 4A 3A 2A 1A 0A 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 J2 P2 0mm 11pin KEY SC N0 KEY SC N1 KEY SC N2 KEY SC N3 KEY SC N4 KEY RTN0 KEY R...

Page 40: ...08 10K VDRW PG DRW_ON B E C Q2 2S D986 A K D1 1S R154 400 C56 0 1uF_50V C57 0 1uF_50V PG 1 2 3 CN5 B3 P SHF 1A A Trouble shooting Drawer remains opened Drawer does not close Check the voltage at point...

Page 41: ...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 BZ1 KPT G1720 5V R190 4 7K R189...

Page 42: ...1 10K R205 750 R204 62 R203 39 A K D18 1SS 355 A K D17 1SS 355 A K D16 1SS 355 VCC3 A K D14 EC31QS06 A K D19 RB520S 30 R202 0 R200 10K VBB Trouble shooting Check whether the batteries are supplied in...

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Page 44: ...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 En...

Page 45: ...Y108540 8 ECR 7900 Service Manual 39 S RAM PIN Configuration Refer to the specification attached data sheet...

Page 46: ...s 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 EXTERNAL MEMORY CIRCUIT A0 25 A1 24 A2 23 A3 22 A4 21 A5 20 A6 19...

Page 47: ...Y108540 8 ECR 7900 Service Manual 41 FROM PIN Configuration Refer to the specification attached data sheet...

Page 48: ...42 ECR 7900 Service Manual Y108540 8...

Page 49: ...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...

Page 50: ...44 ECR 7900 Service Manual Y108540 8 Motor and Thermal Head drive timing Figure 3 14 2 2 Division Printing Timing Chart...

Page 51: ...11 2A 2 13 2A 3 15 2A 4 17 1G 1 2G 19 1Y 1 18 1Y 2 16 1Y 3 14 1Y 4 12 2Y 1 9 2Y 2 7 2Y 3 5 2Y 4 3 VCC 20 GND 10 U14 TC 74VHCT244FT VCC5 C3 0 1uF 3 4 U5 B SN74LV 14AP WR R_PEND EC 9 47uF_16V R87 10K R...

Page 52: ...00pF C69 100pF R128 100 R129 100 R130 100 1 2 3 4 5 6 CN10 B6B P C15 0 1uF FB1 0 3216 G D S Q4 2SJ377 R138 1K VCC5 R137 200 BCR_ON G 1 A1 2 Y1 18 A2 4 Y2 16 A3 6 Y3 14 A4 8 Y4 12 VCC 20 GND 10 U6A TC...

Page 53: ...t 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 por...

Page 54: ...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 o...

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Page 58: ...52 ECR 7900 Service Manual Y108540 8 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...

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Page 62: ...08540 8 4 2 SOFTWARE VERSION CHECK Through the diagnostic check it shows the software version in the beginning of the check However it is possible to check only the software version without diagnostic...

Page 63: ...ECR 7900 Service Manual 57 Note The latest version of the ER7900 is Ver 1 01 Appendix jig for RS232C PORT Testing jig Loop back connector for barcode scanner Connecting Diagram D sub 9 pin 1 2 3 4 5 6...

Page 64: ...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...

Page 65: ...nual 59 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 4 Execute Up_Loader Y...

Page 66: ...e Manual Y108540 8 5 Set the COM Port number using Com set button 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 P...

Page 67: ...th 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 side might have started up the LOADER already...

Page 68: ...62 ECR 7900 Service Manual Y108540 8 PC side 13 When it s connected to ECR it shows Boot OK Click EEPROM Erase button 14 When it successfully done the deletion it shows OK...

Page 69: ...Y108540 8 ECR 7900 Service Manual 63 15 Click UP LOAD button Select the file you wish to download Click Open 16 It shows a status for transmitting...

Page 70: ...64 ECR 7900 Service Manual Y108540 8 17 It shows Up Load OK 18 Click Ver button...

Page 71: ...transmitted 20 Click RUN button 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 n...

Page 72: ...is made on the PC 2 Support OS Microsoft Windows 2000 Windows XP 3 Driver file Win2kcom inf Note WindowsXP uses the same file 4 How to install the driver Note The sample screens use Windows2000 1 Con...

Page 73: ...l 67 4 Click the Next 5 Specify the place of the driver file Please click Next after checking Specify a location 6 The folder selection screen is displayed Click the Browse 6 The folder selection scre...

Page 74: ...68 ECR 7900 Service Manual Y108540 8 7 Please open the folder that is preserved Win2kcom inf and click Open after selecting the file 8 Click the OK 8 Click the OK 9 Click the Next 9 Click the Next...

Page 75: ...ervice Manual 69 10 The driver s installation is completed by this operation Please click Finish 11 Next please confirm whether the driver was normally installed Please right click at the My computer...

Page 76: ...70 ECR 7900 Service Manual Y108540 8 12 Click the HardWare tab 13 Click the Device Manager...

Page 77: ...Y108540 8 ECR 7900 Service Manual 71 14 Please confirm the display of USB COM test COMn COM7 was made in the example of the following...

Page 78: ...e 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 judg...

Page 79: ...TOP SHEET TO KEY CAP THEN FIX TO BASE TOP KEY 2 FIX K B PWB UNIT TO KEY FRAME WITH FLAT IT MUST BE ON FITTING BOSSES POSITION THEN FASTENING 15PCS SCREW RUNNER GATE POSITION ON TOP SIDE RUNNER GATE P...

Page 80: ...ER TO TOP CASE AS SHOWN ON THE UPPER PICTURE 2 SLOT MOTOR SET PIECE TO TOP CASE AS SHOWN ON THE BELOW PICTURE 4 FIX 2PCS BATTERY CONTACT TO TOP CASE LOCATION AS SHOWN ON PICTURE TTOP CASE PAPER ROLLER...

Page 81: ...Y108540 8 ECR 7900 Service Manual 75 5 FIX KEY FRAME TO TOP CASE PRESS UNTIL IS LOCKED 6 FASTENING 6PCS SCREW KEY FRAME TO TOP CASE TOP CASE KEY TOP SCREW...

Page 82: ...76 ECR 7900 Service Manual Y108540 8 7 1 APPEARANCE CHECK LCD COVER 2 FIX LCD COVER TO TOP CASE AS SHOWN ON PICTURE 8 FIX LCD COVER TO TOP CASE BY FASTENING 4PCS SCREW LCD COVER TOP CASE SCREW 1 2 3 4...

Page 83: ...PLATEN SPRING TO PLATEN ARM THEN FIX TO TOP CASE 10 FIX LCD MODULE UNIT TO TOP CASE NOTE The display unit is described in the next section 6 2 PLATEN ARM PLATEN SPRING LCD MODULE UNIT PRESS UNITIL IS...

Page 84: ...vice Manual Y108540 8 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 TO R DISPLAY CASE AS SHOWN ON PICTURE R DISPLAY UNIT REMO...

Page 85: ...Service Manual 79 12 1 CLIP FERRITE CLAMP TO HARNESS ASSY THEN TURN ONE ROUND TO FERRITE 2 CLIP HARNESS ASSY TO CORD CLAMP AS SHOWN ON PICTURE 30mm FERRITE CLAMP 1 TURN CLIP HARNESS ASSY IN THIS CORD...

Page 86: ...ice Manual Y108540 8 6 2 Display unit ASSY 1 INSERT HARNESS ASSY LCD MODULE UNIT 2 SOLDER HARNESS ASSY TO LCD MODULE UNIT LCD MODULE UNIT LCD MIRROR NON GLARE SURFACE TAK SILAU HARNESS ASSY LCD MODULE...

Page 87: ...R 7900 Service Manual 81 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 LCD REAR CASE LCD MODULE LC...

Page 88: ...82 ECR 7900 Service Manual Y108540 8 4 CLIP FERRITE CLAMP TO HARNESS ASSY AND TURN ONE ROUND TO FERRITE CLAMP HARNESS ASSY 30mm FERRITE CLAMP 1 TURN...

Page 89: ...Y108540 8 ECR 7900 Service Manual 83 6 3 Bottom case unit ASSY 1 1 APPEARANCE CHECK THE BOTTOM CASE 2 STICK CORD CLAMP TO BOTTOM CASE LOCATION AS SHOWN ON PICTURE BOTTOM CASE CORD CLAMP TAB SIDE...

Page 90: ...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 BOTTOM CASE HARNESS ASSY CA24 903A INSUL...

Page 91: ...Y108540 8 ECR 7900 Service Manual 85 4 FIX TRANSFORMER UNIT TO DRAWER UNIT BY FASTENING 2PCS SCREW AC CORD SLOT HERE SCREW...

Page 92: ...6 ECR 7900 Service Manual Y108540 8 5 1 FIX AC CORD TO BOTTOM CASE 2 FIX INLET SET PIECE TO BOTTOM CASE BY FASTEN 2PCS SCREW AS SHOWN ON PICTURE AC CORD PUT LIKE THIS BOTTOM CASE INLET SET PIECE SCREW...

Page 93: ...O 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 7 FASTEN 8PCS SCREW MAIN PWB TO BOTTOM CASE BOTTOM CASE SC...

Page 94: ...TE CABLE TO MAIN PWB 9 FIX PRINTER EARTH WIRE AND DRAWER EARTH WIRE TO UPPER PLATE THEN FASTENING 1PC SCREW CABLE FROM I F PLATE INSERT TO CN10 JUMPER LEAD FROM USB BOARD INSERT TO CN8 MAIN PWB TRANSF...

Page 95: ...SS BATTERY BOX HARNESS AND PRINTER PWB JUMPER LEAD TO MAIN PWB LOCATION AS SHOWN ON PICTURE BATTERY BOX HARNESS INSERT TO CN13 PRINTER PWB JUMPER LEAD 13pin INSERT TO CN7 PRINTER PWB JUMPER LEAD 9pin...

Page 96: ...RT LCD MODULE HARNESS SD CARD HARNESS AND K B JUMPER LEAD TO MAIN PWB LOCATION AS SHOWN ON PICTURE K B JUMPER LEAD INSERT TO CN1 10pin SD CARD HARNESS INSERT TO CN2 LCD MODULE HARNESS INSERT TO CN11 K...

Page 97: ...Y108540 8 ECR 7900 Service Manual 91 12 FIX SEMI SET TO BOTTOM CASE 13 FASTEN 2PCS SCREW TOP CASE TO BOTTOM CASE SEMI SET SCREW...

Page 98: ...92 ECR 7900 Service Manual Y108540 8 14 FIX KEY FRAME TO TOP CASE PRESS UNTIL IS LOCKED 15 COPLETE AND FUNCTION TEST DEPOSIT DRAWER BATTERY ASSY UNIT WINDING REEL...

Page 99: ...12 11 6 P1 11 IS CLK1 11 7 P1 10 IS TXD1 11 8 P0 3 D3 11 9 P0 2 D2 12 0 P0 1 D1 12 1 P0 0 D0 12 2 P1 57 12 3 P1 56 12 4 P1 55 12 5 P1 54 12 6 P1 53 12 7 P1 52 12 8 P1 51 IS CLK0 12 9 Vss 13 0 P1 50 IS...

Page 100: ...8 1S S35 5 A K D1 6 1S S35 5 A K D1 1 1S S35 5 A K D1 3 1S S35 5 A K D1 4 1S S35 5 A K D1 2 1S S35 5 A K D2 5 1S S35 5 A K D2 7 1S S35 5 A K D2 8 1S S35 5 A K D2 6 1S S35 5 A K D1 0 1S S35 5 A K D2 4...

Page 101: ...5 5 A K D3 6 1S S35 5 A K D3 8 1S S35 5 A K D3 9 1S S35 5 A K D3 7 1S S35 5 A K D4 9 1S S35 5 A K D5 1 1S S35 5 A K D5 2 1S S35 5 A K D5 0 1S S35 5 A K D4 5 1S S35 5 A K D4 7 1S S35 5 A K D4 8 1S S35...

Page 102: ...2 HLATCH A K D8 0 1S S355 A K D7 9 1S S355 VCC A K D8 2 1S S355 A K D8 1 1S S355 VCC SHVP C93 0 1uF_25V R167 10k_F R166 9 1k_F EC11 47uF_16V R175 220 VCC VPRN EC10 47uF_16V 1 2 3 4 5 6 7 8 9 10 11 12...

Page 103: ...y Back up Power Battery AA 1 5V x 3 Logic Power 5 0V VFD Drive Power 28V VFD Filament Power 3 9V P P TP8 GND Vpw VF1 VF2 TP10 VF1 TP11 VF2 TP9 Vpw R185 0_1W EC17 10uF_50V EC15 100uF_16V EC14 10uF_50V...

Page 104: ...2 B7P SHF 1AA F1 TR 5193701 6A A K D1 1SR154 400 R3 22k R2 2 2k_1 4W EC2 33 00uF_50V C2 0 1uF_25V PG B E C Q4 2SA1284D A K ZD2 RD30EB3 R9 3 3k VF1 VF2 CT 89A DC23V200mA DC12V1500mA AC4V0 5A AC25V0 1A...

Page 105: ...KS51 56 _45 KS50 55 _46 KS49 54 _47 KS48 53 _48 KS47 52 _49 KS27 27 _50 D19 JUMPER _51 D20 JUMPER _52 D21 JUMPER _53 D22 JUMPER _54 D23 JUMPER _55 D24 JUMPER _56 D25 JUMPER _57 D26 JUMPER _58 D27 JUMP...

Page 106: ...F2 d2 d1 c b a1 a2 f k r g m h n e j p VEE 17 DIG0 18 DIG1 19 DIG2 20 DIG3 21 DIG4 22 DIG 5 23 DIG 6 24 DIG 7 25 DIG 8 26 DIG 9 27 SE G15 28 SE G14 29 SE G13 30 SE G12 31 SE G11 32 SE G10 33 SEG9 34 S...

Page 107: ...Y108540 8 ECR 7900 Service Manual 101 9 EXPLODED DIAGRAM...

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