Question about Yamaha GX-505 CD Shelf System
Over a period of a few weeks, the volume control on the unit became intermittent, then failed totally to respond to rotational movement. The remote control works fine. Have removed volume control knob assembly from PCB (left body attached to PCB). No obvious sign of excessive wear on contacts (knob or PCB-attached contacts). Small amount of factory-installed grease relocated (to simulate new product). Re-assembled whole unit, problem remains (naturally...) Is problem most likely (or has experience proven): - volume control assembly worn out, needing replacement? - contacts (within control) needing 'repositioning', to ensure greater friction between surfaces? - analogue components (pull-up and/or pull-down) between volume control and digital IC failed? - digital IC failed (no longer 'reading' changes from volume control)? (All of the above?!) Thanks...
hi, ya, someimes the POT i.e the volume controller variable resistor loses its contacts with the carbon strip. tru using some switch cleaning solution( NoN Acidic) to clean the POT,let me know
Posted on Dec 30, 2007
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