Overview Of This Ecr - Sam4s ER-420 Service Manual

Overview of this ECR

This service manual provides the technical information for many individual component systems, circuits and
gives an analysis of the operations performed by the circuits. If you need more technical information, please
contact our service branch or R&D center. Schematics and specifications provide the needed information for the
accurate troubleshooting.
All information in this manual is subject to change without prior notice. Therefore, you must check the
correspondence of your manual with your machine. No part of this manual may be copied or reproduced in any
form or by any means, without the prior written consent of Shin Heung Precision .
Note: Before using this Electronic Cash Register (ECR) for the first time, leave it powered on in the REG mode
for at least twenty-four hours. This allows the Ni-MH battery, which maintains the memory of the ECR while
the power is off, to charge completely.
"Proper disposal of batteries is required. Refer to your local codes for disposal requirements."