Question about Car Audio & Video
I just got my hands on a rockford fosgate 200s amp, it didn;t power up for me, upon opening it I spotted a burnt trace on the ground side, I patched this and nothign happened, looking closer, R29 and R20 look to have over heated and come un-soldered from the board, I found them and they appear to be 100 Ohm resistors, I replaced them and I get no power up. When power is applied ot the amp those resistors get very very hot. Guessing I have a short somewhere. Any guesses? I can get pictures of the damaged areas of the amp if that will help. I do know electronics fairly well design wise, but is the first time I am taking a crack at a rockford fosgate amp and I don;t have a schematic.
If the resistors go to the gates of the power supply FETs, the FETs are probably shorted. Measure the resistance between the gate and the drain (no power applied to the amp). It should be at least several thousand ohms.
If you can take high res photos, send them to my email address:
Posted on Dec 21, 2007
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Apr 19, 2017 | Rockford Fosgate Car Audio & Video
Aug 04, 2014 | Car Audio & Video
Apr 02, 2010 | Rockford Fosgate Punch P5002 Car Audio...
Oct 27, 2009 | Rockford Fosgate T15004 Car Audio...
Jun 12, 2009 | Rockford Fosgate Punch P5002 Car Audio...
Apr 27, 2009 | Rockford Fosgate Punch 800a2 Car Audio...
Feb 05, 2009 | Rockford Fosgate HE2 RFP4212 Car Subwoofer
Aug 29, 2007 | Rockford Fosgate Power 501BD Car Audio...
286 people viewed this question
Usually answered in minutes!