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Defect in power amplifier of pioneer sx227 receiver

 
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chritje
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PostPosted: Sun Jan 11, 2009 8:15 pm    Post subject: Defect in power amplifier of pioneer sx227 receiver Reply with quote

I have a pioneer sx227 receiver with a defect in the power amplifier.
The two power transistors (C3180 and A1263) had a short circuit and I replaced them.
After replacing them i noticed that they still get very hot. There is a current running through them although nothing is connected. The left channel has no problems.
Probably something else is defect. Anyone got a clue?
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jts1957



Joined: 24 Nov 2008
Posts: 2476
Location: Far, Far Away

PostPosted: Sun Jan 11, 2009 8:28 pm    Post subject: Re: Clue Reply with quote

Have you checked the rest of the parts, especially semiconductors and resistors, in the defective channel?
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