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My amp suddenly going silent when volume knob touchedi have a ordered

I have a pre owned Rotel RA1070 that’s been working fine. Tonight, twice, I’m listening to jazz, wife sleeping, so I go to turn down volume a touch. The minute I touch the knob the sound goes dead. Amp, CD okay running, cables fine, speakers brand new MA Silver 2 .
I turned off the amp, waited 10 seconds, turned back on, everything running, sounding normal. Later on, I get up to turn down volume, same thing, sound goes dead. What’s happening? Seems to happen when I touch the control, before I even turn it down... Almost like a mini shock
sifter
sifter OP
35 posts
 
Anyone?...
mofimadness's avatar
mofimadness
4,152 posts
 
Static is causing the IC logic chip to shut down.  Power cycling the unit is resetting it back.  Try some anti-shock spray or grounding yourself before you touch the unit.
sifter OP
35 posts
 
Thank you
noble100's avatar
noble100
1,093 posts
 
     Hello sifter,
     This is a fairly common issue;  volume control shafts behind and attached to the knobs build up deposits over time that cause the exact results you've described.
     Buy a can of tuner cleaner spray for under $5 at an electronics shop.  To use, turn off the unit and remove the volume control knob.  Volume knobs typically can be removed by pulling them straight outward.  Spray the cleaner on the metal volume control shaft underneath the volume knob.  Replace the volume control knob and rapidly turn the knob back and forth to work in the cleaner and remove the offending deposits.
     This usually fixes the problem but, if not, the deposit buildup may be too excessive and you'll need to have a local tv/electronics repair shop clean it professionally.
Tim 
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