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Adrian Caspersz Adrian Caspersz is offline
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Default Sansui QRX 5500 quadrophonic receiver one channel is out but thenan accident brought it back, (for a breif time)

On 08/11/2019 00:19, abrsvc wrote:
Believe it or not, this is a common failure. The protection relays get a bit of corrosion on them and don't pass the signal along. You can try cleaning the contacts or just replace the relays. The increased signal level of the higher volume can sometimes "span the gap" and appear to work OK.


Or mechanical stress on the circuit board jolts the contacts.

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Adrian C