4 channel issues

bmk6795
10+ year member

CarAudio.com Elite
my 4 channel isn't working for some reason. it's a clarion apa 4203. was working fine, started cutting out id turn the hu off n on and it'd work fine. now it's just not working at all. I've checked all the wires and they are fine. maybe it finally quit after 24 years. here are pics of the board anything look wrong?

2013091395172359_zpsa1b72ac1.jpg


2013091395172406_zpsc3a07012.jpg


 
[quote name='bmk6795']@ciaonzo ;

you wanted to see the guts on this when i had it for sale. also has a small fan on the heat sink.[/QUOTE]Cool, thank you!

Looks very similar to some older Sony builds, those had IC's that would need replaced after a while.
 
You caught yourself, I was going to say that amps not a day over 15 years. And to whom.. It's not an IC chip amp. It's not to easy an amp to take apart more then what you already have. Test your FETs. There's a video on youtube somewhere that shows you how. Start there and IF you can/want, check the back side of the board.

 
You caught yourself, I was going to say that amps not a day over 15 years. And to whom.. It's not an IC chip amp. It's not to easy an amp to take apart more then what you already have. Test your FETs. There's a video on youtube somewhere that shows you how. Start there and IF you can/want, check the back side of the board.
Lol yeah it was made in 99, for some reason when I told myself it was made in 89. Alright ill look into checking the fets. Thanks for the info. Ill prolly end up replacing it as you can most likely get just as much, if not more, power than this amp puts out for the cost of the repair, and with it being this old and something failing I could get it repaired and then something else fail a few days after.

 
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bmk6795

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