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evianamp2011 19th January 2013 06:33 PM

jl audio 500/5 , 32.2vDC on front right ch.
I bought this with the fact that it was in need of repair. This is my second jl 500/5 i will attempt to fix (repaired a couple of 500/1 before). Thanks Perry for the help with my other 500/5, that one is working properly now.

The seller mentioned that the sub channel was out. Once on the bench and powered up i checked the dc offset for each ch. All where with reasonable limits (15-2 millivolt) except for channel right/front, it had 32.2vdc with or without signal.

I'm guessing a leaky/shorted output. What else should i check? Thanks in advance.

This is a rev 6 board.

evianamp2011 19th January 2013 06:39 PM

LOL, i remove the transistor clip for the right front channel and wallah I found a bust a transistor.

evianamp2011 22nd January 2013 07:30 PM

Replaced both outputs and their resistors, the 47 ohm resistor was bad and it showed signs.

Powered it up and perfectly working, all channels sound good.

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