Table of Contents
Advertisement
2. Precautions for Repair Work
2. Precautions for Repair Work
Please read the following cautions, notes and warnings before progressing through
this manual or undertaking any repair action.
Remember: SAFETY FIRST!
AC Power Cord:
Care must be taken not to damage the AC power cord as fire or electric shock may result.
Battery Pack:
Only use the specified batteries and chargers with this equipment.
Do not short the battery terminals together.
Keep the battery pack away from fire and sources of ignition.
Remember to recharge the battery pack after each use.
Before Powering up the Equipment:
• Only switch on the telephone's power once the test or installation set-up is complete.
• Switching on at the wrong time may result in electric shock or damage to system components.
• Always ensure that the power is switched off before making connections / disconnection's.
• It is important to check that the correct DC voltage is applied to the equipment to prevent electrical
damage.
Component Polarity:
Always check the polarity of connections and components before soldering.
Particular attention must be paid to IC.s, diodes, transistors, capacitors and any other semiconductor
device that is polarity dependent.
Electrostatic Damage (ESD):
Semiconductor devices are easily damaged by electrostatic discharge. Many of the procedures
detailed in this manual involve disassembly of the equipment and therefore handling of the printed
circuit boards.
To protect these devices from ESD a wrist strap connected to ground must be worn.
In addition to this the work surface must be covered with an anti-electrostatic mat, which should also
be grounded.
If printed circuit boards are to be stored without being re-assembled into their equipment, then they
must be kept in an anti-electrostatic bag.
LGE Internal Use Only
Important
CAUTION:
Copyright © 2007 LG Electronics. Inc. All right reserved.
- 8 -
Only for training and service purposes
Advertisement
Table of Contents
