Originally posted by Enzo
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Peavey 400 amp missing part.
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Originally posted by Enzo View PostYes.
If that diode or its circuit go open, then Q2 and Q12 are turned full on.
When the going gets weird... The weird turn pro!
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Look at the 400BH file instead of the 400B/G. The BH includes the layout for the power transistors, and the diode in right next to its connector between Q4 and Q5. There is a two wire Molex nearby leading over to the main board.
The 400BH and 400B/G are almost identical, but the layout includes all the boards.Education is what you're left with after you have forgotten what you have learned.
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When I ordered parts for the Peavey I said to myself "don't forget to test that somewhat hidden diode". Of course total brain fart and had to order it separately. I even remember reading the Peavey cross reference guide about the 13886 diode. They recommend their direct batch of dual diodes since they have very specific design requirements for that diode. There is a thread here talking about just putting a 1N4001 or something in there but best to get the part from Peavey.When the going gets weird... The weird turn pro!
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If you put a single diode in its place, the amp will work, but you will get more crossover distortion than with the dual diode.Education is what you're left with after you have forgotten what you have learned.
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