Sharp ER-A490 Service Manual

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ER-A490V8S
SHARP SERVICE MANUAL
CODE: 00ZERA490VSME
ELECTRONIC
CASH REGISTER
mopEL ER-A490
nee SSS SRV Key : LKGIM7113BHZZ
For TQ/TR/TS PRINTER 7 PR-58A: For TQ/TR/TS
PR-58M: For KA/KB
(For "V" version)
| CAUTION
EXTREME CAUTION MUST BE TAKEN WHEN SERVICING THIS MACHINE. EVEN
THOUGH THE MODE SWITCH IS IN THE OFF POSITION, VOLTAGE iS STILL SUPPLIED
TO THE ENTIRE MACHINE.
WHEN WORKING ON THIS MACHINE MAKE SURE THAT THE POWER CORD IS
REMOVED FROM THE WALL OUTLET.
—E—
3s. CONTENTS
CHAPTER 1, SPECIFICATIONS ins eaten ae ier Sead oa he eee
CHAP TER 2. OPTIONS: tinccs-a ees wee edie ede ae ee ae ee
CHAPTER 3. SRV. RESET AND MASTER RESET ..................008.
CHAPTER 4. HARDWARE DESCRIPTION sci seinen eta dv ages eee:
CHAPTERS: TEST FUNGTION: gs ancsc ste e go inte ac ie aa Sa Detae hs
CHAPTERS: DOWN LOAD FUNCTION ook dct etes taste wee aes
CHAPTER 7. CIRCUIT DIAGRAM & PWB LAYOUT .................0..
PARTS GUIDE
Parts marked with "A\" 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.
This document has been published to be used
for after sales service only.
S HAR P C OR P O RATI O N The contents are subject to change without notice.