G356E SERVICE MANUAL
Contents
1. Rh dede 11 3 2 9 Battery Charge ism T 12 3210 D 12 4 Trouble Sh 2 eee 15 5 CONNECTOR LAYOUT OF CPU Ass 17 bi CONNECTOR TABERE 18 5 2 Standard inner cable pin 1 2 20 0 222212200000 000 000000000000 19 5 3 Optional cable pin assignment 19 o Appendix tn a as 20 1 Introduction G356E consist of 5 block 1 Main CPU board Main CPU M16C 80 Renesas device 16 bit MPU RAM 4M bit battery back up EPROM 4M bit CMOS 2 Front display unit 3 Rear display unit 4 Key board unit 5 Power supply unit 2 Installation procedure 2 1 unpacking The ECR packing method is shown fig 2 1 Unpack the ECR an check that the following items are present 1 two rolls of thermal rolls 38mm 2 one journal Take up reel 3 key set 4 G356E owners manual 5 Dust cover If the ECR was received in a damaged carton unpack and inspect for physical damage immediately As described in table 2 1 If damage is found contact the freight carrier and file a claim promptly If any parts are missing contact JCM within one week of receiving the ECR Initial inspection Perform the appearance and mechanical checks as listed on table 2 1 The ECR cabinet2. then cutter motor begin to cut the receipt paper Sensor switch detects the cutter position After motor begin to cut the paper switch becomes ON CUT_S L until cutting is complet When CUT_S goes to H the machine brakes the cutter motor by make P to H The brake time is about 100msec Timing chart is following CUT_A CUT_B SS 010 CUTTER MOTOR DRIVE CIRCUIT 11 3 2 9 Battery charge circuit When the power is turn 012 and D13 turn on thus 5V is applied to line and Recharge current is applied to the rechargeable battery via R31 When the power is turned off D12 and D13 turned off thus battery output is applied to When the power is turned off battery output backs up the memory contents of RAM chip and CPU internal RAM 3 2 10 PF circuit When the power is off the PF is But when the power is on the Q27 Q33 are turn on the PF is signal 5V signal timing chart 13 4 Trouble shooting Phenomenon condition Considerable cause Check point method Remedy Machine doesn t work at all Printer doesn t work after power on AC power is not supplied AC power is not applied to switching power supply Is AC power plug connected to outlet Is outlet voltage normal Is fuse primary side of switching Power supply Is 24V output from secondary side of switching
3. 4 RTS 2 RxD 2 RxD 3 TxD 3 TxD 5 GND 7 GND Interface cable for between G356 and the GP965 WI 1369 SCOM Signal Dsub 9pin female Signal side female 19 9 6 8 CTS 5 CTS 7 RTS 4 RTS 2 RxD 3 RxD 3 TxD 2 TxD 5 GND 1 GND Application case 1 G356 DOS V scanner It can be connected directly 2 G356 Panasonic scanner ZE84RMD4JK Casel Please exchange the inner cable WI 908 with WI 906 WI 908 SCANNER Case2 please use the interface cable WI 1370 WI 906 WI 1370 3 G356 DOS V PC It can be connected directly by the cross cable 4 G356 GP965 Case 1 Please exchange the inner cable WI 907 with WI 837N WI 837N GP965 Case2 please use the interface cable WI 1369 906 1 1369 SCOM1 or WI 907 WI 1369 SCOM2 6 Appendix Number of PLU PB actually maximum occupation PLU 12 char 9269 PLU 20 char 7657 PLU 15 char 7657 PB 7657 Paper near end level Point Paper yes No paper J15 8 4 71 0 320 JNEND 9 3mV 5 02 J15 4 4 13 180 9mV RNEND 10 7mV 5 02 HARD RESET procedure 1 remove the cabinet 2 DIP SW1 ON 3 Power ON 4 Short the JP1 on the CPU board 5 After few second display will light 6 If E006 appear on the display off the power and execute the ALL CLEAR 20
4. are correct Replace U22 not lit correctly Key input Specific key input 2 key depressed Check whethe r any key keeps depressing Replace key board unit cannot be cannot be accepted together accepted Control mode is lock When control lock is released lock signal Replace D10 position is applied to KR lines KRO KR4 Check conduction of the control key Diodes D1 D9 are defect Check the diode on the output line of specific key s key matrix Check diode on key Matrix output 16 Key depressing section is Replace key depressing section defect 5 CONNECTOR LAYOUT OF CPU BOARD SRV gt FBCAL E 2 110 J15 1 pin side 8f O O 6 emoo CUTTER R MOTOR THERMAL HEAD JMOTOR HE 15 JT J6 PI 2 T _ Jii UN KR KSCAN gt J3 17 5 1 CONNECTOR TABLE J1 KEY SCAN eks aks _ 9Kss 45 motor 2B 6 PS 8NC 9no J11 POWER pin signal J2 key return efkes 46 J motor 2B J4 DISPLAY Pin eimai Jan Signal 4seaP pas sear ipai seap avez z perz J7 thermal head Pin imme pin sens 6 PS 9NC 412 Wind _ J16 SCOM3 Pin Signal 6 20 PGND spsr
5. can be detached by removing the three screw on the upper side of the cabinet The two screw is on the printer side And other one is under the customer display unit It is concealed under a small cover Table 2 1 Check List Inspection check Appearance A surface of cabinet keyboard and cash drawer for damage such as dents and scratches B display windows for damage such as cracks or scratches Mechanical A electrical connections for proper seating keys in mode lock for proper operation C Cash drawer for smooth operation when released manually See selection 2 3 for release details 2 2 Emergency cash drawer release In the unlikely event of a machine malfunction or a prolonged power failure the model G356E is equipped with an emergency cash drawer release The release is located on the rear underside of the cash drawer To manually release the drawer carefully lift one side of the ECR with your left hand and push the release tab with the other O Rear O PWN BOTTOM VIEW FIGURE 2 2 2 3 Preparation for use Dip switch setting Dip switch is located on the front right corner of the main PCB It is used for initialization and hardware configuration purposes 1 ON initial reset OFF normal operation Initial reset procedure a Initial reset 1 set DIP sw1 to ON 2 Power ON Clears RAM work area only current transaction Does not effect totals counters or program memory Operation mode beco
6. 74HC245 via J2 Thus U17 MPU recognizes which key is depressed and executes key s specific operation The scanning signals are also used for digit indicator signals for display tube as well The scanning signal from U26 0 scans control lines KRO KR4 and they are applied to U17 MPU as control signals According to the status of control signals U17 MPU executes specific operation 5V P110 Pill P112 P113 Scan signal Data bus Fig 3 1 key board circuit Timing chart of key scan signals u2 15 _ 118 YO Xp ipe yl Y y il PA Y7 LI M Li b 48msec 3 2 3 display circuit Display signals are applied to the display circuit board via J4 The display signals for digit indication are also used for key scan signals which are decoded At U25 U26 VHC138 The decoded signals from U25 U26 are amplified at U23 U24 driver uPA80C and applied to the display tube on display circuit board The display signals for segment indication are output from port of CPU P150 P157 P76 P77 They are amplified at U22 U23 driver uPA80C and applied to the display tube on display circuit board DISPLAY DRIVE CIRCUIT 26FE 3 2 4 printer drive circuit Printer drive circuit consists of CPU U17 U11 U12 and U9 U10 driver U13 comparator Usua
7. ELECTRONIC CASH REGISTER G356E SERVICE MANUAL DOCUMENT No 5140 02 03 REV 01 TITLE G356E SERVICE MANUAL PREPARED K SAKAUE 2004 4 21 APPROVED BY COPY RIGHT 2004 BY JAPAN CASH MACHINE CO LTD TABLE OF CONTENTS 1 23Installatiom PrOCEAULE 1 DV UN Packing s m D 1 2 2 Emergency cash drawer 1 3 2 3 Pr paration for 3 Dip switch setting aise eus 3 Inatial reset proc dure aysa amana aya respete vea a a ua FE a bee I copata 3 Di enostie8s s Sanpa aa AS ayama EE EEE 4 9 Theory OLOperatiN z Sr eee 5 3 1 systemiblock diagram sis u u anu dios 5 LESCANO 6 9 2 1 POW OE SA uu Q A aspa ua 6 3 2 2 KEY BOARD CIRCUL D enrere S a aS 7 9 28 GISPIAY CLE CULE k wau a m 8 93 27 drive CLV CUMS ha ee nO RR e ueni ed Dua BOE eyes 9 9 2 5 ComparatotiClECU Tb ose etse etre ee yere ee 9 3 2 6 Paper near end sensor circuit sese tte terrse sese nente nnns 10 3 2 7 Motor drive circuit paper feed motor sod dde 11 9 2 8 cutter motor drive eda e t ct
8. e head unit over heat When the head is over heated printing is Wait for head becomes cool doesn t work rotate stop at all Stepping signal does not Is the stepping signal output from Replace U17 generated P13X U17 Is the stepping signal output from U9 or U10 Replace U9 or U10 Printer feed Printer motor does DC power for print head When pin12 P142 of U17 outputs H Replace 93 94 the paper work correctly unit is not output the head become active without printing Abnormal Display doesn t light The FPC for CPU and FD Check conduction of FPC Replace FPC display units connection 1s broken Display voltage 30v is not Is PD13 defect Replace PD13 generated Replace converter transformer Filament voltage VF1 VF2 Check the voltage between VF1 and Replace converter transformer is not generated VF2 tolerance3 46Vrms Center tap voltage Is the cathode voltage of PD14 23 5V Replace PD14 filament is not correct Display tube is broken Is the display tube cracked Replace the display tube Some ghost are Cut off voltage is generate Is cathode voltage of PD14 23 5V Replace PD14 displayed from PD21 Specific digit Key input correct Trouble in FD driver Check the condition of the FPC Replace FPC is not lit Replace U23 U24 correctly Specific Display data and time Trouble in segment drive Check the condition of the FPC Replace FPC segment 1s data
9. ear end sensor Journal paper empty Receipt paper empty Head up switch Control key position 999999999 NS version and check sum display The software version number and checksum of EP ROM will displayed For example display 1 0 0 E F 10 3 check sum destination spec Version number Section 2 3 Theory of operation 3 1 system block diagram Printer unit Rear display Cutter unit option ACU1224B0 Front display 9 digit VFD PRINTER DRIVER s m DRAWE CIRCUIT VFD driver R DRIVER HHATHG 0586 KEY BOARD 9 X 8 MATRIX CONTROL LOCK SWITCHING SCOM3 SCOM4 are reserved POWER SUPPLY MAIN 24V The ECR circuitry can be broken down into six major sections MPU Memory Display Key board Printer and power supply The heart of this system consists of a M16C 80 Sixteen bit microprocessor implementing L S I high speed and low power consumption Standard memory includes a 512k x 8 bit EPROM and a 512k x 8 bit static RAM chip 3 2 circuit description 3 2 1 power circuit POWER VOLTAGE 5V 30V Vez VF1 VF2 REGULATOR CIRCUIT After passing through the switching regulator There is a 24V DC power via JP1 This power supply circuit employs fly back converter type switching regulator system At the initial condition as the level of point I is OV PQ4 keeps OFF condition When 24V begins to rise up afte
10. lly P142 outputs L level When one of department key is depressed CPU outputs printer power Signal H PR_PWR from output port P142 of U17 Q4 turn ON Thus the thermal head On the printer mechanism is activated Serial print data input from PR DAT is transferred to the shift register synchronously with the Clock PR CLK then stored in the latch register at the timing of the latch PR signal The heat elements which correspond to the latched print data are activated while each gate 1s on The gates on while each head activation signal DST1 DST4 is low 9 2 5 Comparator circuit The thermal head has a thermistor for detect the head temperature The level of the IN is changed according to head temperature When head is heated too high temperature the output level of comparator goes to H level Thus thermal head will be non activity This status is released when the head become cool 24V C31 50 xn dus O3 10K R28 3 2581100 2 2K 12W DTCI43EUA 126 OOOO U12B Ute 4 3 6 5 74VHCI4 74VHCI4 UDA UD 2 I 8 o 4 4 74VHCI4 74VHC14 R38 R42 5 lt ho gt 5 4 7K 4 7K R39 5 UBA R40 3 22K Si R41 5V 4 E Nut 47K 20K 3 2 6 Paper near end sensor circuit This circuit detects paper near end of receipt and journal individually The sensor is consist of a LED and a photo transistor It attached under the botto
11. m base There are two windows in order to sense the roll paper The light from LED reflect at the paper and be returned to the photo transistor Thus sensor output level become H about 4V If paper roll slip out from holder the light from LED cannot reflect so the photo transistor cannot receive the return light Thus sensor output level become L about 0 3V There is transistor on the CPU board in order to amplify the inputted signal So the inputted signal is not stable that Q7 Q8 amplify the signal to OV or If paper roll slip out from holder JNEND or RNEND will become to 5V When paper roll is on the holder JNEND or RNEND is OV R72 R73 limit the current to supply to LED 5V A PAPER NEAR END DETECT CIRCUIT 10 3 2 7 Motor drive circuit paper feed motor After PF_IO PF_I1 set to L level the signal PF_PH1 PF_PH2 are sequentially changed for to feed the receipt paper Similarly after JF_10 JF_11 set to L level the signal JF_PH1 JF_PH2 are sequentially changed for to feed the journal paper 24V 9 F M2IAGDISNID 1 gt 8 e E R2 2 RD 4100p IK 20 39 12W 4700 UDN2916LB 3 2 8 cutter motor drive circuit Cutter unit have a motor and sensor switch CUT_S CUT A is used as motor ON signal CUT is used as motor brake signal When receipt is issued CUT A becomes to H
12. me P mode b RAM clear all clear 1 Turn the mode lock key to the P mode 2 Set DIP sw1 to ON 3 Power ON while depressing the tenkey 1 4 All clear is displayed Clears all Totals counters and user programmed memory Loads default operation program After all clear operation you must preset the date and time in X mode The machine does not work without setting date and time Diagnostics 1 turn the mode lock key to P position or assign to P mode 4 key 2 Enter xxxxxxxxx 9digit NS 555555555 NS_ automatic receipt issue at minutes interval 555555551 NS_ automatic receipt issue at 5 second interval without cutter 555555552 NS automatic receipt issue at 5 seconds interval with cutter 666666666 NS communication port loop back test check the com Port from 1 to 4 Following result message is printed Error2 RTS CTS defect Error4 RxD TxD defect T77777777 NS_ automatic printing test All characters are printed on receipt and journal automatically You can do a check of printing quality It s terminated by depressing CL key 888888888 NS key board test the display will show the each key s position number on the right side 2 digit various signal status will be showed each digit on the display It s terminated by depressing CASH key For example display P10101145 position code Journal near end sensor ho Receipt n
13. power supply Connect the plug to outlet Replace the fuse Replace the switching power supply Is DC normal 24V is not generated 5V is not generated voltage Does collector of PQ1 output oscillation wave Is PD11 defect Replace PQ1 Replace PD11 Replace converter transformer Crystal is not oscillating Check wave form pin 20 and Pin 22 of U17 frequency 20MHz Replace crystal x1 Replace U17 The levels of PF lines don t become H Is D20 defect Are Replace D20 Replace U27 and U33 Date time Date doesn t Crystal x2 32 768kHz is Check wave form of 17 and pin 18 of Replace crystal X2 data fails increment not oscillating properly U17 frequency 32 768kHz Date time data doesn t increment correctly Buzzer Trouble in buzzer circuit When pin 8 P146 of 017 output Replace the buzzer doesn t sound buzzer is driven Replace Q1 Is Q1 defect Drawer is not Drawer solenoid Trouble in drawer circuit When pin 29 P145 of 017 output Replace Q6 opened doesn t operate drawer solenoid is driven Is Q6 defect Abnormal Printed character is The level of timing signal is Is the signal level of pin 1 U13 stable Replace U13 print out Not desired not stable Printer is defect 15 CONDITION CONSIDERABLE CHECK POINT REMEDY ON CAUSE METHOD Printer Printer motor doesn t Is th
14. r power ON the level of point rises up and PQ1 turns ON And then the power is applied to primary side of pulse transformer PT1 When the power is applied to primary side of the PT1 the level of point T secondary side of the PT1 rises up and if it is exceed the zenner voltage of PD11 5V PQ4 turns on and the level of point H becomes OV Therefore PQ1 is in OFF condition and supplement to primary input of PT1 is cut off with that the level of point I becomes initial condition again and PQ1 turns ON Thus switching the supplement of power to primary side of PT1 secondary output 5V 30V VF1 Vf2 is stable The 24V DC pass through u1 LM25758 5 0 voltage regulator become steady PCT 424V PRA N 68 gt RSIB R8 10v m LAW PRI PRE V ISK 2PR5 HZ36CPB 203K 10 HZU12B2 1 5K PD8 Z RSIB R8 1 PRE 283052 DK 14W 28C3568K PDI RM 2 q 2SC3052 js fizus1 100V S pz 33K 1 4W CET x 7 x 3 2 2 KEY BOARD CIRCUIT Input and output signal for key board scanning are passing through J1 J2 The output signals from output port P110 P113 of U17 are encoded signals By passing through U25 U26 74HC138 they are decoded to key scan signals And they are applied to key matrix via J1 When a certain key is depressed one of decoded signal is applied to buffer U20
15. s 22 14 epsri e3psr _ 14 PGND 28 VP J13 cutter J17 SCOM4 Pin Signal 18 43 CTLLOCK lira 48 5 1 J14 drawer 5 2 Standard inner cable pin assignment SCOM1 WI 906 for DOS V pin assign hand scanner J8 J9 J16 J17 signal Dsub 9pin male Signal 1 9 2 CTS 8 CTS 3 RTS 7 RTS 4 RxD 2 RxD 5 TxD 3 TxD 6 GND 5 GND SCOM2 WI 907 for DOS V PC communication J8 J9 J16 J17 signal Dsub 9pin male Signal 1 2 CTS 8 CTS 3 RTS 7 RTS 4 RxD 2 RxD 5 TxD 3 TxD 6 GND 5 GND It can be connected with scanner which have DOS V pin assign connector directly 5 3 Optional cable pin assignment WI 837N for GP965 slip printer J8 J9 J16 J17 Signal Dsub 9pin female Signal 1 Vcc 6 2 CTS 5 CTS 3 RTS 4 RTS 4 RxD 3 RxD 5 TxD 2 TxD 6 GND 1 GND Inner cable pin assign for hand scanner ZE84RMD4JK Panasonic Wi 908 J8 J9 J16 J17 Signal Dsub 9pin female Signal 1 Vcc 9 2 CTS 1 CTS 3 RTS 4 RTS 4 RxD 2 RxD 5 TxD 3 TxD 6 GND 7 GND Interface cable for between G356 and the hand scanner ZE84RMD4JK Panasonic WI 1370 SCOM Signal Dsub 9pin female Signal side female 9 9 8 CTS 1 CTS 7 RTS
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