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paragon66x paragon66x is offline
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Default Sony HCD-MG510AV 60 cd receiver w/surround and A/V jacks - WONT TURN ON

Mark D. Zacharias wrote:

If the fuses are really good, this is a bad sign, given what you have said
about using the 12 to 120 converter. Possibly a bad power transformer.
With the receiver unplugged, use your DMM to measure resistance (ohms) at
the AC switched outlet on the rear panel. This outlet directly parallels the
main transformer primary. If the transformer primary is OK, and there are no
blown fuses or other open circuit, then the resistance should be very low,
probably less than 1 ohm, since it is a large transformer. If it's in the
100 ohm range or greater, you are measuring only the primary of the standby
transformer, and the main transformer may be bad. Possibly a thermal fuse
opened inside the transformer.


Mark Z.


Hi Mark - there is no switched outlet in the back of the stereo. It
has the main plug hard-wired in and various jacks for speakers and what
not, but no other place for any AC plug to go into. This is one of the
"mini-stereos" with the CD player, cassettes, etc, all in one self
contained unit.

I do currently have the main cover off and notice when you plug it in,
it makes the "normal" click after a couple of seconds (at least I think
that is normal), and one of the belt drives on a cassette motor jogs
forward for a split second. After that, the light to the main power
button LED is lit red, but the power to the system will not come on.
With that said, what else do you recommend? Thanks - John