Casio PCR-260B Bedienungsanleitung

SERVICE MANUAL

ELECTRONIC CASH REGISTER

(without price)

Printer Model : M-42V

PCR-260B(EX-268EC)

MAR. 2003

INDEX

CONTENTS

PCR260B Page

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

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

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

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

3-2. BLOCK DIAGRAM....................................................................................................... 4

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

5. CIRCUIT EXPLANATION ............................................................................ 8

5-1. Power supply circuit .................................................................................................. 8

5-2. Reset circuit ................................................................................................................ 9

5-4. Printer drive circuit................................................................................................... 10

5-5. Pin description (CPU uPD78044FGF) ..................................................................... 10

6. DIAGNOSTIC OPERATIONS .................................................................... 12

6-1. To start the diagnostic operation............................................................................ 12

6-2. Check items .............................................................................................................. 12

6-3. Operations................................................................................................................. 13

7. ERROR CODE LIST................................................................................... 16

7-1. Operation error code................................................................................................ 16

8. IC DATA ..................................................................................................... 17

9. PCB LAYOUT ............................................................................................ 18

10. CIRCUIT DIAGRAM ................................................................................... 19

11. PARTS LIST............................................................................................... 25

— 1 —

• CPU Name µPD78044FGF177-3B9

Number of control bit 8bit

RAM (Built-in) 624 Kbits

• Printer Name M-42V-001-060MA

Print method Print wheel selecting type serial printer

MCBF 700,000 lines

Life

• Roll paper Type Fine-quality paper

Size Width 57.5 ±0.5 mm

Roll diameter 80 mm or less

1. SPECIFICATIONS

1-1. Electrical specifications

120V

• Power consumption In operation Max. 0.11 A

Min. 0.09 A

Power OFF 0.06 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

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

• Storage humidity 10 % ~ 95 %

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

1-3. Main components

— 2 —

DEVICE NAME MODEL NOTE

• Wet cover WT-80

• INK ROLL IR-40

1-5. Option List

1-4. Drawer List

DRAWER NAME Specification NOTE

• DL-1325 (S type) D-14C2M-D54RP-9* USA

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.

2. Plug the power cord of the ECR off an AC outlet.

3. Remove the memory protection batteries.

4. Leave the ECR a few minutes and plug the power cord into an AC outlet.

5. Set the memory protection batteries.

6. Turn the Mode Switch to REG position.

— 3 —

3. BLOCK DIAGRAM

3-1. PCB CONNECTION

— 4 —

Voltage detection

Winder Motor drive circuit

Printer drive circuit

Drawer drive circuit

Reset IC

Buzzer

KEYBOARD

DISPLAY

CPU

3-2. BLOCK DIAGRAM

— 5 —

4. DISASSEMBLY

1. Open the printer cover.

2. Remove the screw from the upper case.

4. Lift up the upper case.

3. Slide the upper case towards front side.

Remove the screw.

— 6 —

5. Open upper case by lifting it from the left side.

6. Remove all the cables on Main PCB and remove 3

screws.

Remove 3 screws.

Hook Hook

Push the connector.

Pull the wires.

7. Lift up the Main PCB to the right side to avoid the

destruction of Display tube.

Be careful not to damage the point A.

Point A

— 7 —

8. To remove the Printer unit, release the hook of point

B, then lift up the Printer unit.

Point B

— 8 —

CN8

*B, *D, *G

E412181*1

TE-266-E2U

FUSE 1A

10 F1

HE12TKYB103K

1SR35-100A X 4

WITH HEATSINK

OSH-1625-MP

Q1 2SD2396(K)

25V4700uF C8

HE60TKYB222K

R1 1K

ZD1

RD6. 8EB1

10V100uF

R16

560 R17

150

HE60TKYB222K

ZD5

RD3. 3EB2 VDD

R14

470K

2SC945 C23

ECQ-B1H103-KF

C28

DSTC50TKYR103K

CRH100-FH11J-1R0

1S2075K RD24EB2

D6 ZD3 1S2075K

2SD1803(T)

10V100µ

50V4. 7uF

D5 C4

C11 C17

HE12TKYB103K

HE50TKYB102K

ZD2

RD36EB1

750

24K

HE12TKYB

103K

100

5ZD4

RD4. 3EB2

1S2471

DCS-267

VF1

VF2

VDD

VDW

PWD

GND

GNDP

5. CIRCUIT EXPLANATIONS

5-1. Power supply circuit

1. Plug the power cord into AC outlet, secondary voltage (9.65VAC) of the power transformer T1 will

be appears at "A" point.

2. Then, its AC voltage is rectified by the diode bridge and change it to DC voltage. ("B" point)

3. DC voltage appears more than 7V at the corrector of power transistor 2SD2396, and then the power

transistor is turned on.

Then VP is supplied. ("C" point)

4. When the VP voltage becomes more than 3.3V, the transistor 2SD945 is turned on and then PWD

signal becomes GND level. ("F" point)

When the PWD signal becomes GND level, CPU knows no power failure.

5. VP is supplied at the DC DC converter trans T2, the DC DC converter makes display and logic circuit

voltage.

VN ,VF1,VF2 : Display voltage ("I", "J" point )

VDD : Logic circuit voltage ("H" point)

Transistor 2SD1803 is used for oscillating the primary voltage of DC DC converter trans.

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