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TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
P R O B L E M
P R O B L E M
P R O B L E M
P R O B L E M
P R O B L E M
Unit completely inoperative no lights,
no sound
Unit will not keep time or radio station
memory
Noise on both radio and tape
Noise on radio only
Poor FM reception and almost no AM
reception
Poor FM reception and good AM
reception
No sound on one speaker
(both radio and tape)
Poor sound on tape only (after one
month or more of tape usage)
Poor sound - new unit
PROBABLE CAUSE
PROBABLE CAUSE
PROBABLE CAUSE
PROBABLE CAUSE
PROBABLE CAUSE
Incorrect power connection
Blown fuse
Incorrect power connection
Blown fuse
Poor ground
Dirty or corroded battery posts
Problem also existed with previous
radio you removed
Antenna
Antenna
FM Local-Distant switch
Wiring
Speaker
Radio Operation
Dirty tape mechanism
For radios with 40 watts or more
output power
F o r a l l r a d i o s
CHECK FOLLOWING
CHECK FOLLOWING
CHECK FOLLOWING
CHECK FOLLOWING
CHECK FOLLOWING
Red wire to +12V ACC. and Yellow wire to
+12V battery
Check fuses in wires listed above and check
car fuse block
Yellow wire is not connected to a "live" +12V
battery source
Check fuse in Yellow wire and at car's fuse
block
Check Black wire for proper grounding
Clean and tighten connection
Consult your local garage mechanic-car may
need tune-up or noise filter
Check that antenna base is grounded. Test
with antenna disconnected. If noise goes
away, replace antenna
Replace antenna and antenna cable
Check if unit has a Local-Distant switch and
s e t t o " D i s t a n t " p o s i t i o n .
Check speaker wiring
Test with good speaker
Check balance and fader controls
Clean tape head and mechanism
Check rating of speakers for sufficient power
capacity
Check that speakers are in good condition
Check that none of the speaker wires are
grounded
Check speaker wiring
10 10 10 10 10
128-5504
128-5504
128-5504
128-5504
128-5504
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