kx519 Posted August 26, 2010 Author Report Posted August 26, 2010 (edited) Some of the time when the internal ground circuitry goes out on an amp board, you get what you are hearing along with alternator whine... What are all the things along the inside of the case with the heat sink stuff on them. one of those has a mark where it got shorted out or something. Edited August 26, 2010 by kx519 Quote 84 K5 Blazer 3" body, 2" Suspension 35" Maxxis Bighorn 100amp Alt Marine deep cycle for the amps (freebie) KnuKonceptz 1/0 8 Hifonics HFi 12D4's in ~19cubes tuned to 35hz Audiopipe AP-18001D RF 5x8's in the kicks Almani 5.25 comp. in back Kenwood KAC-645 --IN THE FUTURE-- None. <!--quoteo(post=0:date=Feb 3 2010, 09:12 AM:name=Decaf)--><div class='quotetop'>QUOTE (Decaf @ Feb 3 2010, 09:12 AM)</div><div class='quotemain'><!--quotec-->we seriously need some butt plugs so you guys stop spewing chit talk<!--QuoteEnd--></div><!--QuoteEEnd-->
Rebel4055 Posted August 26, 2010 Report Posted August 26, 2010 What are all the things along the inside of the case with the heat sink stuff on them. one of those has a mark where it got shorted out or something. Kinda like this? If so mosfet. Quote Rest In Peace mother. January 22, 1955 - February 14, 2013 http://www.stevemeadedesigns.com/board/user/35351-megrch/
kx519 Posted August 26, 2010 Author Report Posted August 26, 2010 Kinda like this? If so mosfet. Yea those, Well one of them have a burn mark on the center pin. Quote 84 K5 Blazer 3" body, 2" Suspension 35" Maxxis Bighorn 100amp Alt Marine deep cycle for the amps (freebie) KnuKonceptz 1/0 8 Hifonics HFi 12D4's in ~19cubes tuned to 35hz Audiopipe AP-18001D RF 5x8's in the kicks Almani 5.25 comp. in back Kenwood KAC-645 --IN THE FUTURE-- None. <!--quoteo(post=0:date=Feb 3 2010, 09:12 AM:name=Decaf)--><div class='quotetop'>QUOTE (Decaf @ Feb 3 2010, 09:12 AM)</div><div class='quotemain'><!--quotec-->we seriously need some butt plugs so you guys stop spewing chit talk<!--QuoteEnd--></div><!--QuoteEEnd-->
Slawsen Posted August 26, 2010 Report Posted August 26, 2010 Sounds like your problem...lol burnt up mosfets Quote 00' Nissan Xterra Always under construction :] HU: Pioneer DEH3100-UB Mids & Highs: Kicker DS Component Set & Crescendo tweeters Mids & Highs Amp: Rockford 150.2 Subwoofer: 2 DC Audio LV 4 18"s Subwoofer Amp: Hifonics Brutus 2005d you been hanging out with jeff and dustin with that green paint? its yellow so it has to be loud.
kx519 Posted August 26, 2010 Author Report Posted August 26, 2010 Sounds like your problem...lol burnt up mosfets Can i pull one from any amp? seems like an easy fix Quote 84 K5 Blazer 3" body, 2" Suspension 35" Maxxis Bighorn 100amp Alt Marine deep cycle for the amps (freebie) KnuKonceptz 1/0 8 Hifonics HFi 12D4's in ~19cubes tuned to 35hz Audiopipe AP-18001D RF 5x8's in the kicks Almani 5.25 comp. in back Kenwood KAC-645 --IN THE FUTURE-- None. <!--quoteo(post=0:date=Feb 3 2010, 09:12 AM:name=Decaf)--><div class='quotetop'>QUOTE (Decaf @ Feb 3 2010, 09:12 AM)</div><div class='quotemain'><!--quotec-->we seriously need some butt plugs so you guys stop spewing chit talk<!--QuoteEnd--></div><!--QuoteEEnd-->
TLEJ Posted August 26, 2010 Report Posted August 26, 2010 (edited) We're sure this is the amp correct? What if you swapped amps out and see if it still happened? Sorry, I'm just trouble shooting.. EDIT: I should of read the second page... :X Good luck with it Edited August 26, 2010 by TLEJ Quote
bobonit Posted August 26, 2010 Report Posted August 26, 2010 When replacing mosfets, you should replace all of them with new ones that are of the same batch. Otherwise you are asking for more failures down the road. Quote 97 Maxima SE Bunch of shit going in, check out the build Build Log
UnderLoK Posted August 26, 2010 Report Posted August 26, 2010 (edited) To me it sounds like it's going in and out of protect. Some amps make a weird ass squeal or scratching noise when they go into protect. I've heard it with MMATS and DAT. In both instances the amps were hosed (one had fried fets and no idea what was wrong with the other one). EDIT: balls more posts by the time I hit send Edited August 26, 2010 by UnderLoK Quote If at first you do not succeed, you are doing it wrong! -ARSCheck out my walled TBSS build over here4 Fi Team 18s on 2 Cactus K9 DS18 doors on 2 MBQ 1Ks, Vifa pillars on a STL4.500 Pioneer X8500 6 XS Power D7500, 1 3400S Second Skin 2 270a Mechman Alts
Bumpin the TWP Posted August 27, 2010 Report Posted August 27, 2010 yeah those with the heatsinks are transistors, they amplify signals so that a pretty big part in an amplifier lol so if they blow then you will need to replace them, if your board is burnt in more places then id say ur amp is screwed and you should just get a new one Quote 2x Sundown Audio SA-15's nuff said for my little old car 1999 Plymouth Breeze Build Log
kx519 Posted August 27, 2010 Author Report Posted August 27, 2010 I'll try new mosfets, sounds simple enough and if that doesn't work then i'll fork out the money for a new amp. Any good places to buy new mosfets? Quote 84 K5 Blazer 3" body, 2" Suspension 35" Maxxis Bighorn 100amp Alt Marine deep cycle for the amps (freebie) KnuKonceptz 1/0 8 Hifonics HFi 12D4's in ~19cubes tuned to 35hz Audiopipe AP-18001D RF 5x8's in the kicks Almani 5.25 comp. in back Kenwood KAC-645 --IN THE FUTURE-- None. <!--quoteo(post=0:date=Feb 3 2010, 09:12 AM:name=Decaf)--><div class='quotetop'>QUOTE (Decaf @ Feb 3 2010, 09:12 AM)</div><div class='quotemain'><!--quotec-->we seriously need some butt plugs so you guys stop spewing chit talk<!--QuoteEnd--></div><!--QuoteEEnd-->
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