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Old 11th December 2008, 05:50 PM   #1
diyAudio Member
Join Date: Mar 2007
Default A8002t help

i have this amp blown outputs and a blown K 408 A1266 small transistor. its board designation is QM1 how would this blow and what else am i going to have to look at?

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Old 11th December 2008, 11:19 PM   #2
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
That's part of the muting circuit. If I'm not mistaken, the center leg goes to DM1/2 (or QA1, QB1) near the preamp end of the board. You should check the muting transistors. I think they should be QA1 and QB1 but I'm not sure.
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Old 12th December 2008, 01:14 AM   #3
diyAudio Member
Join Date: Mar 2007
perry thanks but this thing is toast i found mulitple transistors burned up all over the board after close inspection so this is a paper weight now
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