IN CASE
OF DIFFICULTY
PROBLEM
Short Stop
Circuit
Activated
Fuse Blows
Noise Pickup
From Alternator
Or ignition
Distorted Sound
Overheating
CAUSE/CURE
1. Speaker wires shorted or grounded to each other or car
body.
2. Less than 3 ohm speaker load.
3. Power ground incorrect.
4. Recheck installation instructions.
1. Power and ground wires reversed.
2. Unit incorrectly wired: refer to diagram.
3. Recheck installation checklist.
1. Run power lead (direct to “+” battery terminal).
2. Black ground wire should be grounded close to where
power-amp is mounted. Must be good solid ground.
3. Radio modified incorrectly for hi-impedance output. Shield
must not touch case, only ground side of volume control.
4. Dress audio cables away from large power and ground
wires, or automobile cabling.
5. If noise only happens on tape player, it’s possible the noise
is being induced directly into the tape head from automo-
bile wiring. Re-locate.
6. Insert choke in power lead to radio/tape unit. In stubborn
cases, try noise suppression at the source alternator and
ignition coil.
7. When all else fails, insert a high current choke, Fosgate
part #FA-505, in the power lead to battery.
8. Recheck installation checklist.
1. Check for shorted or grounded speaker wires.
2. If input signal is large, the input level control may have to
be adjusted.
3. If there is a wiring problem, the unit may be oscillating and
causing the power supply to go into overload protection.
4. When this happens, the L.E.D. indicatorwill be dim. Check
wiring per diagram.
5. Recheck installation checklist.
1. Lower than 3 ohm load.
2. Re-mount for better air flow.
3. Too small wire to battery.
4. Recheck installation checklist.
