Hi all,
Trying to repair a bad channel on a Sunfire Cinema Grand. Before I start desoldering the boards to really get at them, I thought I'd ask the gurus here if they've seen something like this before.
Basically all but one of the channels are fine, but the bad channel is only showing a half waveform; anything above ground is dead. I've posted some pics here:
Link
As much tracing as I can do shows the full waveform through the opamps and on filter caps, so it must be near the output. Any thoughts?
Thanks!
Trying to repair a bad channel on a Sunfire Cinema Grand. Before I start desoldering the boards to really get at them, I thought I'd ask the gurus here if they've seen something like this before.
Basically all but one of the channels are fine, but the bad channel is only showing a half waveform; anything above ground is dead. I've posted some pics here:
Link
As much tracing as I can do shows the full waveform through the opamps and on filter caps, so it must be near the output. Any thoughts?
Thanks!
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