Question about Yamaha RX-V663 Receiver
This was caused by dried filter capacitor in the pre-amplifier stage(where the volume control is connected) and/or in the main sound output circuitry(where the large heat sink located). This capacitor is not totally faulty, need a little warm-up to make itself stable but the symptom will get worst. To isolate the faulty parts, you must have a capacitor checker to determine its condition and pinpoint where the faulty one. A leaky capacitor will do the same symptom, it has a physical indication of defect like bulging/dome at the top.
If you don't have necessary tools and test instrument and can't troubleshoot the unit yourself, I would advice you to look for a qualified technician to isolate the problem.
Hope I helped you.
Have a nice day!
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Posted on Apr 06, 2011
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Posted on Jan 02, 2017
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