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Problem for Rockford Fosgate Punch 401S Car Audio Amplifier
401s Rockford Fosgate Amp. Not powering on,just protect lite is on.
By olddewsons on May 30, 2009
401s Rockford Fosgate Amp. Not turning on. No power light. Pos+ and GR- are solid. Thought it may be remote, so tried running a wire from the POS+ to REM to test it, no luck After i got my car jumped my amp has the protect lite on not power lite please help
Comments:
May 30, 2009
- thanks for reply,this model has 3 led lites top one is power, 2nd one is termal,3rd one is protect, no matter what we do,this lite stays on. this all happen after we needed a jump,the power lite will flash fiant blue at the sametime the protect lite flashes.it on for 10sec then flash,10sec flash. we disconected the speakers and the booster,still the same.we pulled all fueses as we were told too,to reset.again nothig. i hope this helps. thankyou......duane.May 31, 2009
- am sry i will have to check. its my sons car,and he wont be home till late. thank you for reply. sry.Sponsored Links
Clarification Request
Posted by pbabin on May 31, 2009
Are you sure that this is a Rockford 401S?
Rockford didn't use blue LEDs until later.
Posted by pbabin on May 30, 2009
I don't think that model has a protect LED. It only has a power LED. If the red LED is lit on the top of the amp, the amp is most likely working.
Have you checked the speakers?
Have you confirmed that you have a good signal at the amp?
Best Solution
posted on Jun 16, 2009
try disconnecting the speakers, whatever connected to the amp audio input terminal, power it up, if there still no power the trouble is inside your amplifier, hope this help, thanks for using fixya!
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Solution #2
posted on Jun 02, 2009
try hooking the remote wire to a rem wire on the back of stereo. post and let me know results
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Solution #3
posted on Aug 28, 2009
the problem is mostly with your audio side of the amp. i have a 800 Rockford punch series amp hooked in series running at about 15 vdc at 2 ohms stable for now. but the amps left front power side transistors overloaded and smoked out, i will be replaceing my mosfets soon. Now on that side your issues apear to be related to the signal side of the amp. when you hooked the amp up tell me breifly did you hook the rca inputs to the back of the sterio and did you select the proper rca inputs for the amp? also note that amps have a potentiomater that can be tuned up or down to allow the volume or wattage to go up or down threw the system. if it's turned all the way down you'll here nothing. but often you'll get a pop sound or quickly see the speaker move a bit. this indicated the signal side of the amp has signal comming in but no output, just look for a turnable small screw inside the amp top or side. and turn up acordingly. note: to much output will damadge your system. not just the amp. ;)
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