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JBL BP150.1 User Manual

Page 6

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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.

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.

Power Series OM 4/15/99 9:17 AM Page 6

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