Sam4s SPS-500 SERIES Service Manual page 2

Overview of this POS System
This service manual provides the technical information for many individual component systems and circuits and
gives an analysis of the operations performed by the circuits. 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 POS system 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 POS while the
power is off, to charge completely. Proper disposal of batteries is required. Refer to your local
codes for disposal requirements.