Article View: sci.electronics
Article #20400Re: Sherwood Receiver Debugging
From: Dave Turner
Date: Fri, 13 Jan 1989 23:30
Date: Fri, 13 Jan 1989 23:30
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In article <74000002@p.cs.uiuc.edu> gillies@p.cs.uiuc.edu writes:
>
>I am trying to debug a 1966 Sherwood Receiver. This is a high-quality
>
>THE PROBLEM: On all input settings (AM, FM, Phono, etc), the left
>channel plays about 40Db more quietly than the right channel. If I
>There is a mono switch, and in this mode, both channels work
>perfectly, although slightly quieter than in the stereo mode.
>
Check the coupling capacitors in the signal path.
Since both channels are approximately equal in mono,
check the circuitry in the preamp portion that precedes the
stereo/mono switch.
I have had similar troubles with other stereos from that era.
A Heathkit (AA-21 ? I think) had a bad capacitor in a fancy pc couplet
that had a bunch of resistors and capacitors in a flat package with
about 10 pins.
--
Dave Turner 415/542-1299 {att,bellcore,sun,ames,pyramid}!pacbell!dmt
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!ames!pacbell!ptsfa!dmt From: dmt@ptsfa.PacBell.COM (Dave Turner) Newsgroups: sci.electronics Subject: Re: Sherwood Receiver Debugging Message-ID: <4655@ptsfa.PacBell.COM> Date: 13 Jan 89 23:30:35 GMT References: <74000002@p.cs.uiuc.edu> Reply-To: dmt@ptsfa.PacBell.COM (Dave Turner) Organization: Pacific * Bell, San Ramon, CA Lines: 22