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Sharp XE-A402 Service Manual

Electric cash register
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CHAPTER 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CHAPTER 2. OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CHAPTER 4. HARDWARE DESCRIPTION . . . . . . . . . . . . . . . . . . . . 5
CHAPTER 5. DIAGNOSTIC PROGRAM . . . . . . . . . . . . . . . . . . . . . 10
CHAPTER 6. IPL FROM EP-ROM . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Parts marked with "!" are 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.
SERVICE MANUAL
CONTENTS
SHARP CORPORATION
CODE : 00Z
ELECTRIC
CASH REGISTER
XE-A402
MODEL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
XEA402USME

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  • Page 1: Table Of Contents

    CODE : 00Z XEA402USME ELECTRIC CASH REGISTER XE-A402 MODEL CONTENTS CHAPTER 1. SPECIFICATIONS ......1 CHAPTER 2.

  • Page 2: Chapter 1. Specifications

    The mode switch can be operated by inserting one of the two supplied mode keys - manager (MA) and operator (OP) keys. These keys can be inserted or removed only in the “REG” or “OFF” position. XE-A402 SPECIFICATIONS – 1 –...
  • Page 3 : 7 segment + Dp in the function message display area. Character size : 14.2mm (H) x 7.9mm (W) Customer display (Pop-up type) Layout: Power save mark (Lighting the mark only under the power save mode) XE-A402 SPECIFICATIONS – 2 –...
  • Page 4 (288dots) (112dots) (288dots) 8. BATTERY 0.125 8-1. MEMORY BACK UP BATTERY Built-in battery: Rechargeable batteries, memory holding time about 1 44.5 44.5 month (with fully charged built-in batteries, at room tem- Receipt Journal (units;mm) perature) XE-A402 SPECIFICATIONS – 3 –...

  • Page 5: Chapter 2. Options

    (This is because if power failure occurs with no battery attached to formed after the power has been restored. the machine, all the memories are lost and the machine does not work properly after power recovery; this requires the master reset operation.) XE-A402 OPTIONS – 4 –...

  • Page 6: Chapter 4. Hardware Description

    80000h ~ FFFFFh 256KB (Moves to Bank 1 when rewritten using EPROM) CGROM /CS0 area BANK 2, 3 address 40000h ~ BFFFFh (512KB x 2) * CGROM is available only for the Japanese market. XE-A402 HARDWARE DESCRIPTION – 5 –...

  • Page 7: Printer Control

    No energizing should be allowed at lease 30 ms after stopping the motor before restarting. When starting the motor, the first excitation phase is RUSH ener- gized for 10 ms to start the motor. XE-A402 HARDWARE DESCRIPTION – 6 –...
  • Page 8 PRINTER STORE SIGNAL 2 /BHE (NU) Out L P105 P105 /STRB3 PRINTER STORE SIGNAL 3 Out L P106 P106 /STRB4 PRINTER STORE SIGNAL 4 BCLK BCLK Out L P107 P107 LATCH PRINTER LATCH SIGNAL XE-A402 HARDWARE DESCRIPTION – 7 –...
  • Page 9 Bit3 ~ 0 : KS3 ~ 0 Strobe signals for keys and POP UP Display are generated at KS3 - 0. < Key Return Signal > Address Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 04003h XE-A402 HARDWARE DESCRIPTION – 8 –...

  • Page 10: Rewriting Flash Memory

    3) The mode key switch is turned from OFF to a position other than OF (excluding the SRV position). (If the power-off time is less than 5 seconds, the reset signal may not be issued.) XE-A402 HARDWARE DESCRIPTION – 9 –...

  • Page 11: Chapter 5. Diagnostic Program

    --- will be displayed. 4 End of testing You can exit the test mode by turning the mode switch to a position other than the PGM mode. The printer prints as follows: 1 0 1 XE-A402 DIAGNOSTIC PROGRAM – 10 –...
  • Page 12 This data to which hard codes have been added is converted into 3 Check that: a decimal number value, which will become the sum check data that will be entered when DIAG is started. “–“ blinks and the clock counts up. XE-A402 DIAGNOSTIC PROGRAM – 11 –...
  • Page 13 40010H , 40020H , 40040H , 40080H , If an error occurs, the printer outputs the error message and the 40100H , 40200H , 40400H , 40800H , address where the error has occurred in the area ***** . XE-A402 DIAGNOSTIC PROGRAM – 12 –...

  • Page 14: Key Code Table

    P G M 1 6 0 End of testing 13) RS232C TEST Install the RS232C loopback connector. 1 Key operation 500 3 RCPT/PO 2 Test procedure The test program checks the control signals. OUTPUT INPUT XE-A402 DIAGNOSTIC PROGRAM – 13 –...

  • Page 15: Chapter 6. Ipl From Ep-Rom

    4. Turn the mode key switch to PGM position, and insert AC plug in AC outlet. 5. The IPL procedure is started. When the procedure is completed, the message of “Completed.” Is shown. P ROM COPY Completed. XE-A402 IPL FROM EP-ROM – 14 –...

  • Page 16: Chapter 7. Circuit Diagram And Pwb Layout

    PC-UM10M XE-A402 CIRCUIT DIAGRAM AND PWB LAYOUT – 15 –...
  • Page 17 PC-UM10M XE-A402 CIRCUIT DIAGRAM AND PWB LAYOUT – 16 –...
  • Page 18 PC-UM10M XE-A402 CIRCUIT DIAGRAM AND PWB LAYOUT – 17 –...
  • Page 19 PC-UM10M XE-A402 CIRCUIT DIAGRAM AND PWB LAYOUT – 18 –...
  • Page 20 PC-UM10M XE-A402 CIRCUIT DIAGRAM AND PWB LAYOUT – 19 –...
  • Page 21 PC-UM10M XE-A402 CIRCUIT DIAGRAM AND PWB LAYOUT – 20 –...
  • Page 22 PC-UM10M XE-A402 CIRCUIT DIAGRAM AND PWB LAYOUT – 21 –...
  • Page 23 PC-UM10M XE-A402 CIRCUIT DIAGRAM AND PWB LAYOUT – 22 –...
  • Page 24 PC-UM10M PWB LAYOUT 1. MAIN PWB LAYOUT A. side B. side XE-A402 CIRCUIT DIAGRAM AND PWB LAYOUT – 23 –...
  • Page 25 COPYRIGHT 2004 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.

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