Still likely it's a bad contact in a pot

Tech Square

Technical and speculative discussion of amps, cables and other topics.

In Reply to: Thanks a bunch... posted by 4yanx on October 13, 2006 at 08:28:57:

Sounds like a bad contact in some pot's wiper. Depending on the circuitry, once the wiper is deconnected, you can have its connection to the following buffer gone loose. If the buffer has sufficiently high input impedance, you can get any sneaky signal that goes around, and there is a lot of them.
As for the failure being gone after a power down/power up cycle, it's perfectly possible to trigger on/off the bad contact following temperature change and chassis dilatation.

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Follow Ups Full Thread

Topic - Accuphase E-202 Problem - 4yanx 20:54:53 10/12/06 (4)

It doesn't look that serious... at least on screen - Gregm 07:26:31 10/13/06 (3)

Thanks a bunch... - 4yanx 08:28:57 10/13/06 (2)

Still likely it's a bad contact in a pot - Jacques 10:21:33 10/13/06 (1)

Re: Still likely it's a bad contact in a pot - BrassTeacher 08:17:35 02/12/07 (0)

Follow Ups

Still likely it's a bad contact in a pot - Jacques 10:21:33 10/13/06 (1)

Re: Still likely it's a bad contact in a pot - BrassTeacher 08:17:35 02/12/07 (0)

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