Preparation For Servicing - Mitsubishi Electric DD-5000 Service Manual

1. PREPARATION FOR SERVICING

The Pickup Head consists of a laser diode that is very susceptible to external static electricity.
Although it may operate properly after replacement, if subjected to electrostatic discharge during replacement, its
life may be shortened. When replacing the laser diode, LSI's and IC's, use a conductive mat, soldering iron with
ground wire, etc. to protect against damage from static electricity.
Soldering iron
with ground wire
or ceramic type
SECTION 1
General Descriptions
Ground conductive
wrist strap for body.
Conductive mat
Fig. 1-1-1
1MΩ
The ground resistance
between the ground line
and the ground is less than 10Ω.
1-1