Sharp ER-A520 Service Manual

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ER-A520
ER-A530
CHAPTER 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CHAPTER 2. OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CHAPTER 3. MASTER RESET AND PROGRAM RESET. . . . . . . . . 6
CHAPTER 4. HARDWARE DESCRIPTION . . . . . . . . . . . . . . . . . . . . 7
CHAPTER 5. DIAGNOSTIC PROGRAM . . . . . . . . . . . . . . . . . . . . . 14
CHAPTER 6. IPL FROM EP-ROM . . . . . . . . . . . . . . . . . . . . . . . . . . 19
CHAPTER 7. CIRCUIT DIAGRAM AND PWB LAYOUT . . . . . . . . . 20
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
ELECTRONIC
CASH REGISTER
MODEL
CONTENTS
SHARP CORPORATION
CODE : 00Z ERA520USME
ER-A520
ER-A530
(U, A version)
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.