Question about Rockford Fosgate Punch P5002 Car Audio Amplifier
I have a Rockford P5002 that was in a different vehicle and am now putting in a 95 Subaru Impreza. All connections are new (bought a kit from Crutchfield) but when it powers on, the "thermal" light comes on. It was just turned on, so doubt it's overheating. I followed another post and checked the wiring coming in with a multimeter. I got about 7 volts for both the B+ and the remote turn on. I checked my battery straight and it's 12 when not on and up to 13ish when engine is running, but even then, just over 7 on the amp. That's a big difference. No matter what I check, can't seem to get amp off thermal. Any ideas? Thanks!
The voltage drop may not be in the actual power wire itself. The same reading on both the B+ and remote terminal probably points to a bad or high resistance ground. Try a different ground point or make sure there isn't any corrosion, paint or anything else preventing metal to metal contact.
Hope this helps.
Posted on Sep 13, 2009
Testimonial: "Thank you! Ended up changing the ground and works like a charm, now. Didn't even think that might be the problem."
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Posted on Jan 02, 2017
7 volts will not be sufficient for the amp either for power or remote. Also check to make sure you speakers wires are not crossed. If its goin it to protect mode immediately the amp is detecting a fault and is not turning on.
Posted on Sep 13, 2009
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