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sa-8500

  1. C

    Pioneer SA-8500 relay not engaging after transistor replacment

    I have a really baffling issue with my Pioneer SA-8500. The right hand channel developed crackling and popping due to dying transistors on the power amp board, so i replaced the 2SA726's at Q2 and Q4 on the right with KSA992's and the 2SC1451 at Q6 with a KSC3503. This went ok and the amp...
  2. MHR

    A troubled Pioneer SA-8500

    First of all, hi to everyone who’s interested to take time to read my problems and questions. This post is quite extensive, but it’s better to be complete, to rule out the obvious. At this point I had to swallow my pride and ask for help. I’m not a complete idiot in the electronics department...
  3. M

    Looking for SA-8500II Advice

    I picked up a SA-8500 II yesterday that looks great... sound doesn't match the looks. I think it's problem is dirty pots still... although I've cleaned the **** out of them. Left channel sounds good, right channel is very low and goes into protection with very little volume. DC offset is 2mv...
  4. spence0nasty

    Pioneer SA-8500 Recap/Rebuild/Restoration/BOM

    A few days ago I picked up an SA-8500 that my neighbor left on the curb. Other than the fact that it's missing one of its feet it's in okay cosmetic shape. It does have some corrosion on the rear contacts, pre/main jumpers, etc., presumably from being stored in a damp basement or something, but...
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