Amplifier Troubleshooting Guide - B52 marine BMP 4004 Instruction Manual

AMPLIFIER TROUBLESHOOTING GUIDE

1. Status LED on Amplifier not LitHead Unit (Source) Turned ON Verify:
A. Remote turn-on wire from source to amplifier has proper voltage
B. Power (B+) connections at amplifier, terminal blocks, and battery are secure
C. Ground (GND) connections at amplifier and vehicle chassis are secure
D. Battery B+ fuse is OK
E. Amplifier fuse is OK
F. B+ at battery and B+ at amplifier have proper voltage
2. Status LEDs Lit, no Output from Speakers in Normal Operating Condition Verify:
A. High-level cables from speaker(s) to amplifier are securely connected
B. RCA cables from amplifier to source are securely connected
C. Volume adjustment on amplifier is correctly adjusted
3. Engine Noise From Speaker(s)
Turn source OFF, Disconnect RCA cables at amplifier If noise stops, check equipment & cables
leading to amplifier
Verify:
A. RCA cables are of good quality with no breakage to internal shields
B. RCA cables from source to amplifier are not run alongside power
4. Amplifier Output Distorted Music not Recorded with Intentional Distortion Verify:
A. Source output to amplifier is not distorted
B. Source output sensitivity is correctly adjusted
5. Amplifier Shuts Down, Green LEDs are Lit Amplifier is in Thermal Protection Mode
Verify:
A. Amplifier is mounted with adequate air circulation around vents
B. Amplifier is not mounted under carpet
C. Speakers meet correct impedance for application (mono or stereo hookup)
6. Amplifier Does Not Turn ON, and Red LED is Lit Amplifier not Connected to a
Shorted Speaker
Verify:
A. Speaker crossover is not defective
B. High-level cables from speaker to amplifier are not shorted
A. Source output to amplifier is not distorted
B. Source output sensitivity is correctly adjusted
11