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Harmon Kardon receiver.

Discussion in 'Electronic Repair' started by Dani, Oct 28, 2007.

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  1. Dani

    Dani Guest

    Model # AVR-10, has raw B+ plus & minus, @ turn on, but display is
    totally black, & unit is
    otherwise dead. Outputs all check fine, nothing shorted, or open,
    there isn't a relay, or control
    transformer. Anyone see this problem? dani.
     
  2. There is a service bulletin for this symptom - though I'm a bit skeptical
    after reading it. There is an LC7821 input select IC near the right rear
    corner of the main pcb which they say causes this problem. Maybe it loads
    down a regulated power supply line.
    I can send you the manual and service bulletin in PDF form. You'll need Win
    RAR to reassemble the service manual chunks.

    Mark Z.
     
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