68P81093C75-O
September 27, 2000
9-25
Module Replacement
Procedures
Station modules suspected of being faulty must be replaced with
modules known to be in good condition in order to restore the station
to proper operation. The following procedures provide instructions
for replacing each of the station modules and performing any
required post-replacement adjustments or programming.
General Replacement
Information
Anti-Static Precaution
The station circuitry contains many C-MOS and other static-
sensitive devices. When servicing the equipment, you must take
precautionary steps to prevent damage to the modules from static
discharge. Complete information on prevention of static protection
is provided in Motorola publication number 68P81106E84,
available through the Accessories and Aftermarket Division.
Some additional precautions are as follows:
•
A wrist strap (Motorola part number RSX4015A,
or equivalent) should be worn while servicing the
equipment to minimize static buildup.
Figure 11 Chassis Ground Wiring Diagram
Output
Input
Gnd
Neg Pos H
N
Power Supply
AC Inlet
(Viewed from
Underside)
Chassis
Ground Stud
Ring Lugs
Nuts
Lock
Washers
GRN/YEL
GRN/YEL
BROWN
ORANGE
MAEPF-27099-O
WARNING: When wearing a Conductive Wrist Strap, be careful near sources of high voltage.
The good ground provided by the wrist strap will also increase the danger of lethal shock
from accidentally touching high voltage sources.
!
CAUTION: DO NOT insert or remove station modules with power applied. This may result in
damage to the modules.
!
