Having a Breakdown
I felt the Amp; I leave it on all the time normally. The pre-amp was
also on; nothing playing volume full off. Amp kinda warm (ADCOM 8200
250 watt x2). Turned off preamp; will check amp sink temp in a couple
hours to see if different with preamp off. Probably should disconnect
the RC jacks too? Ok, they're unplugged at the amp. The two pieces
are on the same AC circuit but different outlets. Ok, the preamp is
unpluged from the AC; there is now nothing physically connecting the
preamp and amp.
You are saying the Dolby circuit not functioning is a symptom of the
power supply having a problem. Check this out one more time... The
speaker extension (moving and holding in the outward position) ONLY
occurs when the Dolby circuit is selected. When Dolby is not
selected, the speakers don't extend. When Dolby on, the sound that
does come through the speakers isn't good, but when Dolby is off, the
sound is normal with all other DSP options, five channel, and two
channel. I was thinking that it's only the Dolby circuit because
everything seems fine with Dolby off.
Oh, maybe you're saying it's not fine, the Dolby circuit is just more
easily suseptable to stray DC and that's why it appears to be a
problem when Dolby is on. I was hoping it is only the Dolby chip
because everything seems ok with Dolby not selected... as if the audio
path does not go through Dolby when not selected, like the way some
EQs are out of the signal path when off.
Please consider this one more time... I really hope I can still play
stereo (with Dolby off). You know, without the preamp (the hub), I'm
SOL. Do you still recommend leaving it off? IF this isn't a DIY fix,
do you think a 15 year old preamp (this caliber) is worth the $400 to
make a trip to Jersey and back?
Thanks though, but now I'm worried. - Kele
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