Casio PCR-365A, CE-200, CE-250 Service Manual

SERVICE MANUAL

INDEX

(without price)

ELECTRONIC CASH REGISTER

PCR-365A (EX-248AC)

CE-250(EX-248BC)

CE-200 (EX-248CC)

JUN. 2000

Printer Model : M-190G-071

CONTENTS

PCR365A/CE-250/CE-200 Page

1.SPECIFICATIONS........................................................................................1

2.INITIALIZE (MAC) OPERATION..................................................................2

3.BLOCK DIAGRAM.......................................................................................3

3-1.PCB CONNECTION.....................................................................................................3

3-1.BLOCK DIAGRAM.......................................................................................................4

4.DISASSEMBLY............................................................................................5

5.CIRCUIT EXPLANATION............................................................................7

5-1.Power supply circuit..................................................................................................7

5-2.CPU (uPD78052GC-159-3B9).....................................................................................8

5-3.Display controller (uPD16312GB-3B4)...................................................................10

5-4.Initilize IC (Reset circuit)..........................................................................................11

5-5.Power down detection circuit (PWD)......................................................................11

5-6.Address latch circuit................................................................................................11

5-7.RAM / ROM bank selection circuit..........................................................................12

5-8.Head drive circuit for printer...................................................................................13

5-9.Power supply circuit for display.............................................................................14

6.DIAGNOSTIC OPERATION.......................................................................15

6-1.To start the diagnostic program.............................................................................15

6-2.Check item................................................................................................................15

6-3.Operation of each test..............................................................................................15

6-4.To exit the diagnostic test.......................................................................................20

7.ERROR CODE LIST...................................................................................21

7-1.Operation error code................................................................................................21

7-2.System lock code.....................................................................................................22

8.IC DATA.....................................................................................................23

9.PCB LAYOUT............................................................................................26

10.CIRCUIT DIAGRAM...................................................................................27

11.PARTS LIST...............................................................................................42

1. SPECIFICATIONS

1-1. Electrical specifications

• Power consumption In operation Max. 0.28 A

Power OFF 0.10 A

• Memory protection Back-up battery Mangan Battery (UM-3 × 3 pcs) Back-up period 1 year (25 °C) Battery life Replace the battery every 1 years.

• Clock & Calendar Accuracy Within ± 30 sec. per month (25 °C) Auto calendar Effective until 2099 A.D.

1-2. Environmental specifications

• Operating temperature 0 °C ~ 40 °C

• Operating humidity 10 % ~ 90 %

• Storage temperature -25 °C ~ 65 °C

120V

Min. 0.12 A

• Storage humidity 10 % ~ 95 %

• Vibration strength 1.5 G (The machine must be in the carton box)

1-3. Main components

• CPU Name µPD78052GC-159-3B9 Number of control bit 8bit

• RAM Name TC55257DPL-70L/85L Capacity 256 Kbits

• ROM Name M27C512-10/12F1 Capacity 512 Kbits

• Printer Name M-190G (071) Print method Dot matrix printing MCBF 1,500,000 lines Life 2,250,000 lines

(Motor, Head unit, Cam trigger set, etc.)

• Roll paper Type Fine-quality paper

of Pressure-sensitive copy paper Size Width 57.5 ± 0.5 mm Roll diameter 80 mm or less Thickness Upper : 0.066 mm

Lower : 0.058 mm

— 1 —

1-4. Drawer List

DRAWER NAME Specification NOTE

• DL-1324 (M type) D-14B2M-D54RP-9* USA

1-5. Option List

DEVICE NAME MODEL NOTE

• Wet cover WT-73

• P/C cable PRL-CB-2 Com 1 port only

• Ink ribbon cassette ERC-40P Ribbon life: approx. 2,000,000 characters

CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacture’s instructions.

VORSICHT ! Explosionsgefahr bei unsachgemäßem Austausch der Batterie. Ersatz nur durch denselben oder einen vom Hersteller empfohlenen gleichwertigen Typ. Entsorgung gebrauchter Batterien nach Angaben des Herstellers.

ADVARSEL ! Lithiumbatteri - Eksplosionsfare ved fejlagtig hándtering. Udskiftning má kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til leverandØren.

2. INITIALIZE (MAC) OPERATION

1. Set the mode switch to "OFF" position.

2. Pressing the "FEED" button and turn the mode switch to "PRG" position.

3. Release the "FEED" button.

4. Initialize operation is executed.

— 2 —

3.BLOCK DIAGRAM

3-1.PCB CONNECTION

Mangan Battery (UM-3 X 3 )

Winder Motor

Printer

(M-190G)

Drawer

20P

CN8 CN1(4P) CN9

CN5

CN10

CN2

Fuse

Transformer

E248-1

TE248-E1D

CN4

24P

E248-E2-2

Pop up Display

(SH1019A)

12P10P

Main Display (SH101MA)

E248-E2-1

24P

FPC

CN11

25P

Mode SW

E266-E3-1

— 3 —

3-2. BLOCK DIAGRAM

PRINTER

M-190G

Head Drive Circuit

HA.A ~ HD.H

FD,RP,MD,DP

Power Supply Circuit

Reset Circuit

CUSTOMER DISPLAY

CPU

uPD78052GC-093-3B9

A8 ~ A15

ASTB

AD0 ~ AD7

enable

BUS Select Circuit

SH1019A

DI,DO,CLK,STB

Select address

AD0 ~ AD5

MAIN DISPLAY

SH101MA

Segment & Digit data

DISPLAY CONTROL

uPD16312GB-3B4

KEY Circuit

KC0 ~ KC4

Keynoard

Mode key

MAIN PCB E248-1

AD0 ~ AD7

A0 ~ A7

ROM

A8 ~ A15

A0 ~ A7

RAM

A8 ~ A11

— 4 —

4. DISASSEMBLY

1. Open the printer cover. Remove the 2 screws of the upper case.

2. Slide the upper case to the front side.

Remove the 2 screws.

3. Open upper case from the left side.

— 5 —

4. Release the hook them Remove the write side.

Hook

5. Release 3 screws to remove printer plastic stand.

Remove the 3 screws

6. Release 2 screws to remove printer unit.

Remove the 2 screws

7. To remove the main PCB, release 7 screws.

Remove the 7 screws

— 6 —

5. CIRCUIT EXPLANATION

5-1. Power supply circuit

A C

Q1: Power transistor Q2: Voltage detection transistor

Voltage level at above check point (unit: V )

Measurement position

ABCD

Voltage (V) 12.5V 5.3V 6.2V 2.47V

— 7 —

5-2.CPU (uPD78052GC-159-3B9)

Pin No. Signal Description In/Out

1FB3 Not used — — — 2FB4 RAM bank 3 Out High High 3FB5 RAM bank 4 Out High High 4AVSS GND — GND GND 5PGM Not used — — — 6RAM Chip select signal for RAM Out High Low 7AVREF VDD — 5 V 5 V 8RXD Receive data In High High

9TXD Send data Out High High 10WD Winder motor drive signal Out Low Low 11DI Data signal from uPD16312 In Pulse High 12DO Data signal to uPD16312 Out Pulse High 13CLK Clock signal for uPD16312 Out Pulse High 14STB Data strobe signal for uPD16312 Out Pulse High 15KC0 Key common signal (KC0) Out Pulse High 16KC1 Key common signal (KC1) Out Pulse High 17KC2 Key common signal (KC2) Out Pulse High 18KC3 Key common signal (KC3) Out Pulse High 19AD0 Address / Data signal (AD0) In/Out Pulse High 20AD1 Address / Data signal (AD1) In/Out Pulse High 21AD2 Address / Data signal (AD2) In/Out Pulse High 22AD3 Address / Data signal (AD3) In/Out Pulse High 23AD4 Address / Data signal (AD4) In/Out Pulse High 24AD5 Address / Data signal (AD5) In/Out Pulse High 25AD6 Address / Data signal (AD6) In/Out Pulse High 26AD7 Address / Data signal (AD7) In/Out Pulse High 27A8 Address signal (A8) Out Pulse High 28A9 Address signal (A9) Out Pulse High 29A10 Address signal (A10) Out Pulse High 30A11 Address signal (A11) Out Pulse High 31A12 Address signal (A12) Out Pulse High 32A13 Address signal (A13) Out Pulse High 33VSS GND — GND GND 34A14 Address signal (A14) Out Pulse High 35A15 Address signal (A15) Out Pulse High 36INIT PAD2 status — — — 37VPP PAD1 status — — — 38DSR Data set ready signal In High High 39KC4 Key common signal (KC4) Out Pulse High 40RD Output enable signal of RAM/ROM (RD) Out Pulse High 41WR Write enable signal of RAM (WR) Out Pulse High 42RA14 Address signal of ROM (Bank 0) Out High High 43ASTB Latch enable for Address decoder (ASTB) Out Pulse Low 44KI12 Key input signal (KI12) In High High 45KI13 Key input signal (KI13) In High High 46RA16 Address signal of ROM (Bank2) Out High High 47RA15 Address signal of ROM (Bank 1) Out High High 48MD Motor drive signal of printer (MD) Out Low Low 49DRW Drawer drive signal (DRW) Out Low Low 50BUZ Buzzer signal (BUZZ) Out Low Low 51FD Paper feed signal of printer (FD) Out Low Low 52HD.A Head drive signal of printer (HD.A) Out Low Low 53HD.B Head drive signal of printer (HD.B) Out Low Low 54HD.C Head drive signal of printer (HD.C) Out Low Low 55HD.D Head drive si

gnal of printer (HD.D) Out Low Low

— 8 —

Status of

Power On

Status of

Power OFF

Pin No. Signal Description In/Out

Status of

Power On

5 6 HD.E Head drive signal of printer (HD.E) O ut Low Low 5 7 HD.F Head drive signal of printer (HD.F) Ou t L ow Low 5 8 HD.G Head drive signal of printer (HD.G) Ou t L ow Low 5 9 HD.H Head drive signal of printer (HD.H) Out Lo w Low 6 0 RESET Reset signal (RESET) I n High High 6 1 DP Dot pulse form printer (DP) In Low High 6 2 RP Reset pulse from printer (RP) In High High 6 3 OFF Mode key status (OFF) Out High Lo w 6 4 PWD Power down signal (PWD) In Low High 6 5 RB0 Address signal for RAM (Bank 0) Out High High 6 6 RB1 Address signal for RAM (Bank 1) Out High High 6 7 RB2 Address signal for RAM (Bank 2) Out High High 6 8 VDD VDD — 5 V 5 V 6 9 X 2 System clock (5 MHz) In Pulse High 7 0 X 1 System clock (5 MHz) In Pulse High 7 1 IC GND — GND GND 7 2 XT2 Sub system clock (32.768 KHz) In Pulse Pulse 7 3 XT1 Sub system clock (32.768 KHz) In Pulse Pulse 7 4 AVDD VDD — 5 V 5 V 75 AVREF0 VCC — GND GND 7 6 BA T Low battery signal In High High

77 VPP.S VPP detection signal (VPP.S) In Lo w Low 7 8 FB0 Address signal of Fiscal ROM bank 0 Out High High

7 9 FB1 Address signal of Fiscal ROM bank 1 Out High High 8 0 FB2 Address si

nal of Fiscal ROM bank 2 Out HighHi

Status of

Power OFF

— 9 —

)

5-3. Display controller (uPD16312GB-3B4)

Pin No. Signal Description In/Out

1 S W1 Not used (GND) — GND GND 2 S W2 Not used (GND) — GND GND 3 S W3 Not used (GND) — GND GND 4 S W4 Not used (GND) — GND GND 5 DOUT Data out signal to CPU Out High High 6 DIN Data in signal from CPU In Pulse High 7 VSS GND — GND GND 8 C LK Clock signal (CLK) In Pulse High

9 ST B Data strobe signal (STB) I n Pulse High 10 KEY1 Not used — — — 11 KEY2 Not used — — — 12 KEY3 Drawer sensor signal (DRW.S) I n High High 13 KEY4 VCC — 5 V 5 V 1 4 VDD VCC — 5 V 5 V 15 SEG1 Display segment signal (Sa) Ou t Pulse Low 16 SEG2 Display segment signal (Sb) Ou t Pulse Low 17 SEG3 Display segment signal (Sc) Ou t Pulse Low 18 SEG4 Display segment signal (Sd) Ou t Pulse Low 19 SEG5 Display segment signal (Se) Ou t Pulse Low 20 SEG6 Display segment signal (Sf) Out Pulse Low 21 SEG7 Display segment signal (Sg) Ou t Pulse Low 22 SEG8 Display segment signal (Sdp) Ou t Pulse Low 23 SEG9 Display segment signal (Str) Ou t Pulse Low 24 SEG10 Display segment common signal (Scom) Out Pulse Lo w 25 SEG11 Not used Low Low 26 SEG12 Not used Low Low 2 7 V EE Power for display (-VN) — -32 V -32 V 2 8 GRD10 Display digit signal (G10) Ou t Pulse Lo w 2 9 GRD9 Display digit signal (G9) Out Pulse L ow 3 0 GRD8 Display digit signal (G8) Out Pulse L ow 3 1 GRD7 Display digit signal (G7) Out Pulse L ow 3 2 GRD6 Display digit signal (G6) Out Pulse L ow 3 3 GRD5 Display digit signal (G5) Out Pulse L ow 3 4 GRD4 Display digit signal (G4) Out Pulse L ow 3 5 GRD3 Display digit signal (G3) Out Pulse L ow 3 6 GRD2 Display digit signal (G2) Out Pulse L ow 3 7 GRD1 Display digit signal (G1) Out Pulse L ow 3 8 VDD VCC — 5 V 5 V 39 LED4 Not used — Pulse Low 40 LED3 Not used — Pulse Low 41 LED2 Not used — Pulse Low 42 LED1 Not used — Pulse Low 4 3 V SS GND — GND GND 4 4 OSC S

stem clock (500 KHz

Status of

Power On

Status of

Power OFF

In Pulse Pulse

— 10 —

5-4. Initilize IC (Reset circuit)

VDD: Voltage of memory protection battery

To Pin No.60 of CPU

When the voltage level at Pin No.60 of CPU is not stabilized, CPU does not work properly in rare case. Therefore, this machine uses the initialize IC for stabilizing the voltage. Even the voltage level of VDD (Pin No.2) is changed, Pin No.1 of initilize IC outputs stabilized 5 volts. When the VDD voltage become less than 1.9 V, the initialize IC send a reset signal to CPU.

5-5. Power down detection circuit (PWD)

To Pin No.64 of CPU

When the VP voltage become less than 4.8 V, the pin No.1 of IC5 become “Low” level. Then,the transistor Q44 become OFF. When Q44 become OFF, the voltage lebel of pin No.64 of CPU changes to “High” level from “Low”. Then, CPU knows power failure.

5-6. Address latch circuit

CPU uses 8 port (AD0 ~ AD7) for address bus and data bus. To select the address, CPU use the IC13. CPU send the address to IC13, and send ASTB signal at same time. Then, IC13 store the address and output the address immediately. In this way, CPU select the address and data signal.

— 11 —

5-7. RAM / ROM bank selection circuit

This circuit is used for address decoder for memory.

0000

2000

Memory Map

Mask ROM (16 K)

00001

000000

Bank 0

4000

EP ROM

6000

Common (16 K)

8000

EP ROM Bank select area

A000

(16 K)

C000

RAM common area (8 K)

E000

RAM BANK select area (4 K)

F000

Outer I/O area

FA80

Internal RAM (High speed access)

FFFF

— 12 —

RAM 256 K

00011

00010

Bank

Bank 1

KI signal port (F800,F801)

Bank 3

Buffer RAM 32 bytes

Internal RAM (High speed access) 288 bytes

Internal RAM (High speed access) Short direct area 192 bytes

General purpose register 32 bytes

Special function register (SFR) 256 bytes

00100

Bank 4

00101

00110

Bank 5

F800 FAC0 FAE0

FD00

FE20

FEE0

FFF0

RAM 1 M

11101

Bank 29

5-8. Head drive circuit for printer

TR5

TR4

TR3

TR1

TR2

Motor drive circuit Normally, the transistor of motor drive circuit is followng condition.

TR1, TR2, TR5 : OFF TR3, TR4 : ON MD (-) signal : VP level

When the CPU want to rotate the motor, CPU change the MD signal to “High” from “Low”. Then, TR1, TR2 and TR5 are become ON and MD (-) signal is become GND level, and then motor is rotated.

Head drive circuit When the CPU wants to print, CPU send “High” signal from HD.A ~ HD.H terminal.

This signal goes to printer unit, and then print. RP: Reset pulse from printer

DP: Dot pulse from printer

— 13 —

5-9. Power supply circuit for display

This circuit is making the power for display tube. Voltage level: -VN Est. -31.2 V

VF1 - VF2 Est. AC4.85 V

— 14 —

6. DIAGNOSTIC OPERATION

6-1. To start the diagnostic program

1. Set the mode switch to “OFF” position.

2. Pressing the “FEED” button and turn the mode switch to “PRG” position.

3. Release the “FEED” button.

4. Input “9999900000” and press “ST” (“#2” key).

5. Diagnostic program is executed.

6-2. Check item

The following test can be checked in the diagnostic test.

1. Key code test

2. Switch status test

3. Individul function test.

6-3. Operation of each test

1. Key code test

When pressing a key, the machine displays the following key code.

HARD KEY CODE TABLE

FEED 055 051 789 046 040 034 028 022 016

058 054 050 456 045 039 033 027 021 015

057 053 049 123 044 038 032 026 020 014

056 052 C0011 012 043 037 031 025 019 013

“020” buttons are work for “#2” key.

DISPLAY

0 1 3

Hard key code

048 042 036 030 024 018

047 041 035 029 023 017

— 15 —

+ 38 hidden pages

Casio PCR-365A, CE-200, CE-250 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual