Thread: Cyrus 1 amp.
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Old March 26th 11, 01:43 AM posted to uk.rec.audio
Mike Coatham
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Posts: 92
Default Cyrus 1 amp.

On 26/03/2011 12:01 p.m., Dave Plowman (News) wrote:
In ,
Mike wrote:
If you want a copy of the service manual, let me know& I'll email you a
copy.


Thanks Mike. I've found the schematics online and have taken it apart ok.
One channel appears to be distorting ever so slightly - after cleaning the
selector switch which cured the intermittent on one channel. The 'faulty'
amp is reading a DC offset of 0.04V - the other zero. Haven't looked on
the scope yet. There doesn't appear to be any presets for standing
current - so would the manual help? If so I'd be grateful.

Email address in the sig.

Manual sent - the quiescent current trimpots are RV2/3 and are 'hidden'
under that flat ribbon cable - hence hard to see.

Cheers

Mike