Question about Sherwood AVR-525 Receiver
My receiver looses the tuned FM channels when switched off. It also at times loosed the display that indicated the inputs...
Same thing happened on my R-925RDS. The memory backup capacitor in
this case is C322 on the front panel PCB, over on the far left hand
side by the mains power button.
In the case of the 925 it's a 0.047F 5.5V capacitor, a small black block approx. 10mm high with 10x5mm footprint. In the service manual it's referred to as 0.047uF, but this is incorrect. Replaced it with a 0.1F 5.5V memory back up capacitor, all's well.
If replacing the capacitor, BE CAREFUL where you mount it! Putting a standard (round) backup capacitor in the exact location of the old one may bring it very close to the mains switch. What I did instead was mount mine about 2 inches closer to the centre of the board, using double-sided tape, and ran wires back to its connection points.
Posted on Jan 03, 2010
I have a Sherwood R925 it lost all programmed inputs like that. It turned out to be a Memory Retention Capacitor that had failed. Look on the display board inside. They are often small and low value. If you are no good at repairs it would only cost less than 1.00 for the part, so worth repairing.
Posted on Jan 21, 2009
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Posted on Jan 02, 2017
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