Sharp ER-A440 User manual

ELECTRONIC
CASH REGISTER
MODEL ER-A440
SRV Key : LKGIM7113RCZZ
PRINTER: DP730
(For "U" & "A" version)
SHARP CORPORATION This document has been published to be used
for after sales service only.
Parts marked with " " is important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.
CHAPTER 1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CHAPTER 2. LIST OF OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CHAPTER 3. REMOVING THE TOP CABINET. . . . . . . . . . . . . . . . . . . . . . . 3
CHAPTER 4. REMOVING THE PRINTER UNIT . . . . . . . . . . . . . . . . . . . . . . 3
CHAPTER 5. REMOVING THE MAIN PWB . . . . . . . . . . . . . . . . . . . . . . . . . 4
CHAPTER 6. REMOTE DRAWER: ER-04DW. . . . . . . . . . . . . . . . . . . . . . . . 4
CHAPTER 7. EXPANSION RAM CHIP (ER-03RA). . . . . . . . . . . . . . . . . . . . 5
CHAPTER 8. JOURNAL NEAR END SENSOR: DUNTK3677BH03 . . . . . . . 5
CHAPTER 9. KEY TOP KIT: ER-11KT7/12KT7/22KT7/11DK7G/51DK7G . . 6
CONTENTS

CHAPTER 1. GENERAL
This manual describes the ER-A440 disassembly procedures and the
option attachment procedures. For assembly procedures, reverse the
disassembly procedures. For attachment of options which do not re-
quire special descriptions, descriptions are omitted.
Note for operations
•Before operation, ground the operator’s body and perform other
necessary measure against static electricity.
•During operations, disconnect the AC cord from the outlet.
•After completion of operations, connect the connectors.
•After completion of operations, be sure to perform the master re-
set.
1. SRV. reset (Program Loop Reset)
Used to return the machine back to its operational state after a lock-
up has occurred.
Procedure
•Method 1
1) Unplug the AC cord from the wall outlet.
2) Set the mode switch to (SRV′) position.
3) Plug in the AC cord to the wall outlet.
4) Turn to (SRV) position from (SRV′) position.
•Method 2
1) Set the mode switch to PGM2 position.
2) Turn off the AC switch.
3) While holding down JOURNAL FEED key and RECEIPT FEED
key, Turn on the AC switch.
Note: When disassembling and reassembling always power up us-
ing method 1 only. Method 2 will not reset the CKDC8.
Note: SRV programming job#926-B must be set to "4" to allow PGM
program loop reset.
2. Master reset (All memory clear)
There are two possible methods to perform a master reset.
•MRS-1
Used to clear all memory contents and return machine back to its
initial settings and return keyboard back to default keyboard layout.
Procedure
1) Unplug the AC cord from the wall outlet.
2) Set the MODE switch to the (SRV′) position.
3) Plug in the AC cord to the wall outlet.
4) While holding down JOURNAL FEED key, turn to (SRV) position
from (SRV′) position.
•MRS-2
Used to clear all memory and keyboard contents.
This reset returns all programming back to defaults. The keyboard
must be entered by hand.
This reset is used if an application needs different keyboard layout
other than that supplied by a normal MRS-1.
Procedure
1) Unplug the AC cord from the wall outlet.
2) Set the MODE switch to the (SRV′) position.
3) Plug in the AC cord to the wall outlet.
4) While holding down JOURNAL FEED key and RECEIPT FEED
key, turn to (SRV) position from (SRV′) position.
5) Key position assignment:
After the execution of MRS-2, only the RECEIPT FEED and
JOURNAL FEED keys can remain effective on key assignment.
Any key can be assigned on any key position on the main key-
board.
[key setup procedure]
NOTES:
1: When the 0 key is pressed, the key of the key number on
display is disabled.
2: Push the key on the position to be assigned. With this, the key
of the key number on display is assigned to that key position.
Key number Key name Key number Key name
1 Numeric key "0" 10 Numeric key "9"
2 Numeric key "1" 11 Numeric key "00"
3 Numeric key "2" 12 Numeric key "000"
4 Numeric key "3" 13 Decimal point key
5 Numeric key "4" 14 CL key
6 Numeric key "5" 15 @/FOR key
7 Numeric key "6" 16 SBTL key
8 Numeric key "7" 17 CA/AT key
9 Numeric key "8"
MRS-2
executed 0 Key position set Free key Free key setup
complete.
0
Disable
*1
*2
– 1 –

CHAPTER 2. LIST OF OPTIONS
1. Options
No. NAME MODEL DESCRIPTION
1 EXPANSION RAM CHIP ER-03RA 512K bytes RAM CHIP
2 REMOTE DRAWER ER-04DW
3 PRESETS LOADER ER-01FD/02FD FD unit
4 KEY TOP KIT ER-11KT7 1 ×1 KYE TOP UNIT
ER-12KT7 1 ×2 KYE TOP UNIT
ER-22KT7 2 ×2 KYE TOP UNIT
ER-11DK7G 1 ×1 DUMMY KYE KIT
ER-51DK7G 5 ×1 DUMMY KYE KIT
5 COIN CASE ER-55CC2 for "U" version
6 COIN CASE ER-48CC2 for "A" version
2. Service options
No. NAME PARTS CODE PRICE
RANK DESCRIPTION
1 SERVICE KEY AF
2 MODE KEY GRIP COVER AL OP key only
3 DRIP-PROOF KEYBOARD COVER BE Include the switch cover
4 JOURNAL NEAR END SENSOR UNIT BB Q’ty: 1
Screw (Sensor unit – Top cabinet) AA Q’ty: 1
Screw (Sensor unit – Earth wire – Top cabinet) AA Q’ty: 1
Earth wire AF Q’ty: 1
Connector (2pin) AA Q’ty: 1
5 TEXT PRESET KEYBOARD COVER BH
3. Service tools
No. NAME PARTS CODE PRICE
RANK DESCRIPTION
1 RS-232 LOOP BACK CONNECTOR BU
2 KEY TOP REMOVER AX
32×2 KEY TOP INSTALLING JIG BB
4. Supplies
No. NAME PARTS CODE PRICE
RANK DESCRIPTION
1 ROLL PAPER AR 5 roll/pack
2 INK LIBBON AZ
– 2 –

CHAPTER 3. REMOVING THE TOP
CABINET
1) Remove the printer cover .
2) Remove the 4 screws .
3) Separate the top cabinet and the bottom cabinet.
Note: Transformer cable and the drawer cable on the bot-
tom cabinet are connected to the main PWB on the top
cabinet. Be careful when separating them from the bottom
cabinet.
4) Remove transformer cable and drawer cable from the main
PWB.
CHAPTER 4. REMOVING THE
PRINTER UNIT
1) Remove the top cabinet.
2) Remove the two screws .
3) Remove the printer cable .
4) Remove the printer unit from the top cabinet.
1
2
Printer
2
2
5
6
1
2
3
– 3 –

CHAPTER 5. REMOVING THE MAIN
PWB
1) Remove the top cabinet.
2) Remove the printer unit.
3) Remove the following connector cables from the main PWB.
Dry battery cable
Pop up display cable
Note: The pop-up cable is fixed with the holder not to make
contact with the heat radiating plate on the main PWB. Be
careful of it when installing.
Mode switch cable
Keyboard cable
Front display cables
4) Remove the RS232 cable from the RS232 PWB .
5) Remove the screw and grounding wire .
6) Remove the four screws and main PWB .
7) Remove the two screws and RS232 PWB .
CHAPTER 6. REMOTE DRAWER:
ER-04DW
CAUTION:
The drawer unit should be securely fitted to the supporting platform
to avoid instability when the drawer is open.
1. Outline
The ER-A440 allows connection of one remote drawer ER-04DW.
2. Installation procedure
1) Remove the top cabinet.
2) Connect the remote drawer cable to the drawer connector on
the main PWB. (Location: CN7)
3) Use nippers to cut off drawer cable binding holder on the
bottom cabinet, and bind drawer cable of the ER-04DW.
Screw used in this case is an accessory of the ER-04DW.
4) Use nippers to cot off the drawer cable split pin of the top
cabinet, and attach the top cabinet.
1
7
2
11 12
3
4
9
10 5
6
13
9
8
1
2
1
3
4
– 4 –

CHAPTER 7. EXPANSION RAM
CHIP (ER-03RA)
1. Outline
ER-03RA: 512KB SRAM chip
2. Installation procedure
Before working on the installation, turn off the power switch on the
ECR and unplug the AC cord from the AC outlet.
Also save the memory contents before proceeding to the installation
work.
1) Remove the top cabinet.
2) Install the ER-03RA to the IC socket on the Main PWB. (Location
No. IC14)
3) Master reset the ECR.
4) Load the data in memory which had been saved.
5) Program reset the ECR.
CHAPTER 8. JOURNAL NEAR END
SENSOR
(DUNTK3677BH03)
1. Parts list
To install the journal near end sensor, the following parts are
reguired.
NO. PARTS NAME PARTS CODE PRICE
RANK Q’ty
JOURNAL NEAR
END SENSOR
UNIT BB 1
Screw (Sensor
unit-Top cabinet) AA 1
Screw (Sensor
unit-Earth wire-Top
cabinet) AA 1
Earth wire AF 1
Connector (2 pin) AA 1
2. Installation procedure
1) Remove the Printer cover.
2) Remove the Top cabinet.
3) Remove the Printer unit.
4) Remove the Main PWB unit.
5) Install the Sensor unit to the Top cabinet with the Screw .
6) Install the Earth wire to the Sensor unit with the Screw .
7) Fix the Earth wire to the Top cabinet with the Screw.
ER-03RA
1
23
4
Through the earth wire into the thins.
– 5 –

8) Solder the Connector (2 pin) to the Main PWB unit. (Location:
CN8 NEJ)
9) Connect the Sensor unit cable to the Connector (2 pin) to the
Main PWB unit. (Location: CN8 NEJ)
CHAPTER 9. KEY TOP KIT
1. Outline
The ER-A440 employs the following key top (option) to allow addi-
tional installation of the key top and change in the key layout.
MODEL NAME DESCRIPTION
ER-11KT7 1 ×1 Key top
ER-12KT7 1 ×2 Key top
ER-22KT7 2 ×2 Key top
ER-11DK7G 1 ×1 Dummy key
ER-51DK7G 5 ×1 Dummy key
2. Installation procedure
ER-11KT7
Solder the connector(2pin).
ER-22KT7
ER-12KT7
ER-11KT7
ER-22KT7 ER-12KT7
– 6 –

ER-12KT7, ER-22KT7
1) Attach two spacers to the keyboard frame.
•Attach the yellow spacer to the left lower side, and the white
spacer to the right lower side.
2) The key top of the ER-12KT7 and the ER-22KT7 includes the
guide pin. Install the key top so that the guide pin is engaged
with the spacer attached to the keyboard frame.
(When using 2 ×2 key top installing jig (UKOG-6725BHZZ) for
installation)
1) Remove the key label and the key cap from the key top.
2) Attach the key top so that the guide arm is under the jig.
3) With the jig inserted in the key top, slowly press down the key
top until the guide arm is brought into contact with the guide
holder A.
4) Remove the jig under the above condition 3), and press the
key top.
5) Check that the key top operates properly.
6) Install the key label and the key cap.
ER-11DK7G, ER-51DK7G
Yellow
White
White
White
Yellow
Yellow
Jig
Key top
Guide arm
A
Jig
Key top
Guide arm
Guide arm
– 7 –

COPYRIGHT 1998 BY SHARP CORPORATION
All rights reserved.
Printed in Japan.
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted,
in any form or by any means,
electronic, mechanical, photocopying, recording, or otherwise,
without prior written permission of the publisher.
SHARP CORPORATION
Information Systems Group
Quality & Reliability Control Center
Yamatokoriyama, Nara 639-1186, Japan
1998 May Printed in Japan