Radio Replacement - Jeep J-10 Series 1982 Technical & Service Manual

3V-12 RADIO SOUND SYSTEMS
Accessories
Electric windshield wipers, blower motors, window
regulator motors, or any brush-type motors, generally
can be suppressed by installing 0.25-mfd capacitors at
the terminals.
CB RADIO DIAGNOSIS
For possible CB radio problems, refer to CB Radio
Reception to determine if the condition is normal. If
problem still exists, use CB Radio test instruments (fig.
3V-17) to diagnose trouble.
RADIO REPLACEMENT
CJ and Scrambler Models
NOTE: // equipped with air conditioning, remove
screws attaching evaporator assembly to instrument
panel and lower evaporator assembly.
(1) Disconnect battery negative cable.
(2) Remove radio control knobs, attaching nuts, and
bezel.
(3) Disconnect radio support bracket from in
strument panel.
(4) Remove radio by tilting it downward and to
ward steering wheel.
(5) Disconnect antenna lead, speaker wires, and
feed wire.
(6) Remove bracket from radio and install on re
placement radio.
80669
Rg. 3V-17 Amserv AMX 386S Mobile CB Tester
(7) Connect antenna lead, speaker wires, and feed
wire to replacement radio.
(8) Install radio in instrument panel.
(9) Connect radio support bracket to instrument
panel.
Operating Instructions for Amserv AMX 386S Mobile CB Tester
NOTES
CAUTION:
Do not key microphone without antenna
connected or antenna button in int. posi
tion if antenna is not connected.
RADIO UNDER TEST
CONTROL SETTINGS
Squelch — Minimum (audible noise)
Volume — Mid-Range
Channel — 2
FAILURE OF -
Test 1 — Probable Faulty Battery or
Harness
Test 2.7 - Faulty Model 386S
Tests 3 to 6 - Faulty CB
Test 8 — After antenna adjustment
indicates faulty antenna.
'Limits set for typical CB systems.
See specific manufacturers specifications
for other radio's and antenna's.
TEST PROCEDURE
Test
Step
Function
Setting
Antenna
Instructions
'Readings
Min.-Max.
Special Notes
1
Watts
Int.
Press-Battery
Volts
12.0-16.0
Key mic, battery volts should
not change more than 0.5 volts.
2
Frequency
MHZ
Int.
Press-Self
Test
•^ 27.2035 min., 27,2065 max.
3
Watts RF
Int.
Key Mic. 03.0 Min.
4
Frequency
MHZ
Int.
Key Mic.
See Freq.
Chart
Rotate CB channel selector See
frequency chart for min./max. on
each channel.
5
Frequency
MHZ
Int.
Press-
Receiver
Test
(Channel 20)
Set to channel 20. Listen for clear
^^^. tone (1kHz) from radio. Adjust
^^^r squelch clockwise, tone should
reappear.
6
Frequency
MHZ
Int.
Key Mic.
Press-Mod.
Test
Talk into mic, voice should be
^^^^ heard from Model 386 speaker.
^^^^ Note -if mic. is held near speaker,
squealing sound is normal.
7 SWR Int.
Key Mic.
1.00-1.20
8
SWR Ext.
Key Mic.
1.00-3.50
Adjust antenna for minimum
reading.
80699