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My yamaha rx-a660 stereo system is frozen

warslayer123

Feb 13, 2017
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Feb 13, 2017
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My yamaha rx-a660 stereo system is stuck on "Main On" and I tried turning it off by remote and pressing the power button on the stereo and both those methods did not work. I appreciate any help given.
 

73's de Edd

Aug 21, 2015
3,613
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Sir warslayer123 . . . . . . . .

mmmmmmmm . . . . possibly . . . . .but it will require a bit of prep work and initial sleuthing feedback
from you.

Initially remove top clamshell cover to expose the units innards . . . .take AC power cord in hand and
trace that line to a connection into a minor sub assembly board. That board should have 1 or 2 clip
in fuses on it and the units main ice cube power relay at about its center .
Need to see if the relay might possibly have its SPST contacts fused together OR continually receiving drive to its coil, which is keeping it from opening and turning off.

If you unplug the AC line cord from power, wait awhile, then plug in again, does it automatically power up by itself , if not that is negating a fused set of relay contacts.

Come back after you have zeroed in on the applicable board and area.


73s de Edd
 
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