This section contains general service information, please read through carefully. It should be
stored for easy access place.
Important Service Information
Safety Notice
1 Make sure your working environment is dry and clean, and meets all government safety
requirements.
2 Ensure that other persons are safe while you are servicing the product.
3 DO NOT perform any action that may cause a hazard to the customer or make the
product unsafe.
4 Use proper safety devices to ensure your personal safety.
5 Always use approved tools and test equipment for servicing.
6 Never assume the product’s power is disconnected from the mains power supply. Check
that it is disconnected before opening the product’s cabinet.
7 Modules containing electrical components are sensitive to electrostatic discharge (ESD).
Follow ESD safety procedures while handling these parts.
8 Some products contain more than one battery. Do not disassemble any battery, or
expose it to high temperatures such as throwing into fire, or it may explode.
9 Refer to government requirements for battery recycling or disposal.
This Service Manual contains general information. There are 3 levels of service:
Level 1: Cosmetic / Appearance / Alignment Service
Level 2: Circuit Board or Standard Parts Replacement
Level 3: Component Repair to Circuit Boards
Confidential - Do Not Copy
PJD5122
ViewSonic Corporation
Introduction
General Descriptions
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