JPA460 Troubleshooting Guide
Unit will not turn ON
• Check fuse.
• Verify wiring is correct as described in manual.
• Verify you have 12V+ DC on the power wire.
• Check Ground.
• Check remote trigger wire is connected (REM) is receiving a 12VDC+ signal to turn the amplifier ON.
No Sound
• Check Volume , Balance , Fader & Mute controls on stereo for proper settings.
• Check to make sure audio signal is connected to amp’s input (either Speaker
Level or Low Level).
• Check Level , Crossover & Mode settings on amp are correct, as described in manual.
• Ensure the amp is powered ON.
Distorted Sound
•
See if distortion is present at all volume levels; if so, test with a known good speaker.
•
If distortion only present at high volume levels, adjust volume and amp Level controls until distortion no longer present.
Blows Fuses
•
•
Power wires are backwards. Correct wiring as shown in manual.
Internal problem with amp. o
Contact vendor for warranty assistance.
Short Circuit Protection Activated
• Blown speakers. Replace with new.
• Speaker wire(s) shorting to ground. Check for faulty wiring. Correct as necessary.
B. Woods
Tech Services
04.27.07
