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Posted by mighty on January 04, 2005 at 08:37:33:
In Reply to: Re: SANSUI AU-D11II INTEGRATED AMP: 'PROTECTOR' FEATURE posted by Gavin Wilks on October 10, 2004 at 05:17:27:
Looks like I'm going to my local Hi-Fi repair shop then?
The problem is caused by glue they used in manufacture to hold components in place. As the glue ages it becomes brownish/yellowish and slightly conductive. This normally would not be a problem except they used it in a highly sensitive area of the final amp boards, the differential input stage.
You may notice the problem tracks humidity. The solution is to desolder components and scrape/clean all the glue off the board and component.
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