Re: Problems with a Pioneer CT-F1250 cassette deck

From: Nigel (Nigel_at_nospam.com)
Date: 06/29/04 

Date: Tue, 29 Jun 2004 05:46:43 GMT

leemichaelb@yahoo.com (Mike Lee) wrote in
news:d5386fa.0406281006.2e89ad1e@posting.google.com:

> Hello all,
> I recently rescued an old and beautiful Pioneer CT-F1250 cassette
> deck from a friend's trash heap! It was in great shape but
> appears to need some work to bring it back up to spec again.
> Most seriously, there is a large power resistor (7W, 12ohms) on
> a vertical board that overheats (to the point of smoking!). I believe
> this may be related to the quartz lock circuitry, because it only
> happens during playback and record, and the circuit board has
> one section that is labelled "pulse count". The second
> issue that it seems to have is that the tape calibration doesn't
> seem very stable -- the ideal setting for each knob
> (bias/level/eq) seems to fluctuate over time, even over the course
> of a calibration run.
>
> Can anyone offer any hints and tips in troublehsooting and repairing
> one of these grand decks? Or possibly someone willing to share a copy of
> the service manual? It is in fantastic shape and I'd hate to
> see it go to waste!
>
> Thanks in advance,
> Mike
>
 

Have you checked the motor ? If it's faulty and drawing heaps of current,
you should be able to feel it getting warm. 

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