Read JBL P 80.2 (serv.man2) User Guide / Operation Manual online
6
Troubleshooting
Symptom
Likely Cause
Solution
No Audio
Short circuit in speaker or speaker wire. Disconnect speaker leads one at a time to determine
(Red LED flashes every four seconds)
which speaker or wire is shorted or defective.
Repair the short circuit or replace bad speaker.
Repair the short circuit or replace bad speaker.
No Audio
No voltage at BATT or REM terminals.
Check voltage at amplifier terminals with VOM.
(Power indicator is off)
Bad or no ground connection.
No Audio
Amplifier overheated.
Make sure amplifier cooling isn’t prevented by mounting location,
(Green power LED is lit)
make sure speaker-system impedance is within limit (see Specifications).
No Audio
Excessive voltage on B (+) connection.
Check vehicle charging system for defective voltage regulator.
(Red LED stays lit)
Distorted Audio
Input sensitivity not set properly;
Check LEVEL setting.
amplifier or source unit defective.
Music lacks “punch”
Speakers are not connected properly.
Check speaker connections for proper polarity.
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