13
mAIntenAnCe
The PC787 is designed to give you years of trouble-free service. There are
no user-serviceable parts inside. Except for the fuse in the DC power cord,
no maintenance is required.
To replace a blown fuse:
1. Press ends of the fuse holder together. Twist to open. Carefully
separate the two pieces.
2. Remove the fuse and inspect. If blown, replace with the same
type fuse.
Use only the fuse specified for your PC787. Failure to do so may void your
warranty.
troUBleshootIng
In the event of system malfunction, perform the following procedures:
Problem
Suggestion
Unit does not power up
Check power cord connections.
Check fuse.
Check vehicle electrical system.
No reception
Check microphone connection.
Set
CB/WX/PA
to
CB
.
Check
VOL
and
SQ
.
Check antenna.
Check antenna connection.
Adjust
RF Gain
.
Poor Reception
Check
VOL
and
SQ
.
Be sure antenna
SWR
is normal.
Adjust
RF Gain
.
No Transmission
Set
CB/WX/PA
switch to
CB
.
Check microphone connection.
Adjust
MIC Gain
.
Low Transmission
Adjust
MIC Gain
.
Calibration does not move the
meter needle to the left side
Adjust the antenna height.
Check all antenna connections.
