How hard is it to do this? I have a perfectly good hifonics sitting around that won't power up. I don't even get a 'protect' light. I opened it up and nothing looked charred or burnt. The fuse looks fine. Any ideas?
lol not really. My friend had a 1,000 watt hifonics and two of the wires touched to together and now it won't power up or it wouldn't power up when we tried it a year ago lol. It's been sitting in his garage ever since. I asked him about it today and he said I could just have it. Oh and he also gave me his sheisty blown volfenhag 15'' today too haha. I was trying to break the magnet off of it to just play around but I couldn't get it. I took a blowtorch to it but the magnet cracked because of the heat lol.
That's interesting that it powers up, it sounded like it was strictly a PSU problem, but apparently the damage is more extensive (and certainly the PSU could still be at fault)...speaking of which, how DID you get it to power on? It would be best to test out the mosfets etc. with a DMM on diode check...instructions for such are on www.bcae1.com, but as Glasswolf has mentioned, you should just get the amp tutorial on CDROM. It's awesome knowledge.
It powered on when it got good and ready lol. After not even powering on it sat in a garage for a year. I hooked it up a few days ago and it magically powered up but didn't output anything. Maybe the part that the RCA wires are plugged into is messed up?
I would love to get that bcae1 thing but i don't want to spend the money and from the looks of it i would also need to buy a Digital Multimeter and an Oscilloscope.
I have learned quite a bit of electronics from my physics class. How hard is it to fix an amp? Is it simple once you know the procedure or do you need to be a senior in electrical engineering? lol
Not too bad, actually. You'll need a DMM and good soldering iron/soldering skills, and a scope would be a good idea in the long term. It's mostly just experience (know what parts are probably bad) and what parts you need to test and how to test them. Parts are relatively cheap and most can be purchased from digikey.com or mouser.com. Knowing how to read a schematic is helpful as well.
I am in the process right now of trying to repair my amp. I think I have found a transistor that is shorting? If the ohmmeter is reading an abnormal reading does that mean its shorted?