JCM J3500E Service Manual

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ELECTRONIC CASH REGISTER

J3500E

SERVICE MANUAL

DOCUMENT No. 5190-02-03

REV.01

TITLE : J3500E SERVICE MANUAL

DRAW CHECK APPR.

PREPARED BY K. SAKAUE 2004/12/6

APPROVED BY

COPY RIGHT 2004 BY JAPAN CASH MACHINE CO., LTD.

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TABLE OF CONTENTS

1 Introduction..................................................................................................................................................................1

2 Installation procedure..................................................................................................................................................1

2.1 unpacking ..............................................................................................................................................................1

2.2 Emergency cash drawer release...........................................................................................................................2

2.3 Preparation for use .............................................................................................................................................2

Dip switch setting....................................................................................................................................................2

Initial reset procedure.............................................................................................................................................2

Diagnostics...............................................................................................................................................................3

3 Theory of operation ......................................................................................................................................................4

3.1 system block diagram............................................................................................................................................4

3.2 circuit description..................................................................................................................................................5

3.2.1 power circuit ...................................................................................................................................................5

3.2.2 PF CIRCUIT ...................................................................................................................................................6

3.2.3 KEY BOARD CIRCUIT..................................................................................................................................7

3.2.4. display circuit ................................................................................................................................................8

3.2.5. printer drive circuit .......................................................................................................................................9

3.2.6. Comparator circuit ........................................................................................................................................9

3.2.7. Motor drive circuit(paper feed motor) ........................................................................................................10

4 Trouble shooting ...................................................................................................................................................... 11

5 CONNECTOR LAYOUT .........................................................................................................................................13

5.1 CONNECTOR TABLE......................................................................................................................................14

5.2 Standard inner cable pin assignment ................................................................................................................16

5.3 Optional cable pin assignment ...........................................................................................................................16

6 Appendix .....................................................................................................................................................................17

Revision table ................................................................................................................................................................18

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1 Introduction

J3500E 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) One roll of thermal rolls 58mm
(2) key set
(3) J3500E owners manual
(4) 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 cabinet can be detached by removing the two screw on the back side of the cabinet.

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. all electrical connections for proper seating

B. keys in mode lock for proper operation.
C. Cash drawer for smooth operation when released manually.

See selection 2.3 for release details.

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2.2 Emergency cash drawer release

In the unlikely event of a machine malfunction or a prolonged power failure, the model J3500E 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.

FIGURE 2-2 Emergency Drawer Release

2.3 Preparation for use

Dip switch setting
Dip switch is located on the front center 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 become “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.

Rear

BOTTOM VIEW

FRONT

release

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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 3 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 3.
Following result message is printed
Error2 RTS---CTS defect
Error4 RxD ---TxD defect

777777777-----#/NS automatic printing test
All characters are printed on receipt 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)
P

1 0 1 4 5

Key position code
Blank area

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 1 0 3

check sum
destination spec.
Version number

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Section 2

3 Theory of operation

3.1 system block diagram

SCOM3 is reserved

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.

Printer unit
GTP58
With auto cutter

Front display
9 digit(LED)

SCOM1 SCOM2

Rear display
9 digits(LED)

MPU
M16C/80

E-PROM’(4M)

4M
RAM

232C DRIVER

KEY BOARD
9 X 8 MATRIX
CONTROL LOCK

PRINTER
DRIVER
CIRCUIT

DRAWER

DRAWER
DRIVER

POWER
CIRCUIT

LED driver
(digit)

SCOM3

SWITCHING
POWER SUPPLY
(+24V)

MAIN

LED driver
(segment)