Buzz kill with the 890 receiver - update - fixed!
My first post dealt with rebuilding the driver board on a newly acquired 890 (8080) receiver. With some help here I was able to complete that project, adjust dc output, bias and give it the old jumpered backlight trick. It was completely awesome for a few days. Tonight it just died. At a low listening level the sound just went away. The cabinet is still off and I was right there when it happened. No poof, pffft, pop, smoke or anything. It was just like someone slowly turned the volume down. No input sources work (AM/FM, Aux).
I tried the pre-out to the input of another receiver and nothing. Tried pre-in directly from an iPod and the amplifier works fine. The only other clue is last night it faded twice for a second or so which definitely seemed strange, but at the time I chalked it up to something happening with the FM signal.
Thoughts anyone? Thanks!
My first post dealt with rebuilding the driver board on a newly acquired 890 (8080) receiver. With some help here I was able to complete that project, adjust dc output, bias and give it the old jumpered backlight trick. It was completely awesome for a few days. Tonight it just died. At a low listening level the sound just went away. The cabinet is still off and I was right there when it happened. No poof, pffft, pop, smoke or anything. It was just like someone slowly turned the volume down. No input sources work (AM/FM, Aux).
I tried the pre-out to the input of another receiver and nothing. Tried pre-in directly from an iPod and the amplifier works fine. The only other clue is last night it faded twice for a second or so which definitely seemed strange, but at the time I chalked it up to something happening with the FM signal.
Thoughts anyone? Thanks!
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