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a-80

  1. QSilver

    Pioneer A-80 over current protection

    I got it this week and at first it worked well. DC offset is 4mV on one side and 14mV on the other. I checked and set the idle current to 22mV as per the manual. But Then it started going into protection. I checked the idle current and dc offset and it was still ok, so I changed the capacitors...
  2. MBuras

    Pioneer A-80 Restoration - Recap & General Notes

    I recently picked up a Pioneer A-80 on the cheap. It had a non-working channel with bad outputs and other various issues in that channel. After quite a bit of troubleshooting it's in running condition and received a full recap. Seeing as there's not much info on this receiver I figured I could...
    • MBuras
    • Thread
    • a-80 parts list pioneer recap restoration
    • Replies: 4
    • Forum: Pioneer Audio
  3. MBuras

    Pioneer A-80 clipping troubleshooting

    Been working on a basket case Pioneer A-80 for a while. One amp board and outputs were completely trashed. Replaced the obvious and then tracked down a few more severely out of tolerance resistors. That channel is working just fine and begins clipping at 223wpc using direct mode, 1000hz signal...
    • MBuras
    • Thread
    • 1980's a-80 diode diodes integrated pioneer
    • Replies: 5
    • Forum: Pioneer Audio
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