|
You have a vertical failure.
Almost surely needs a couple of capacitors and the vertical chip. Possibly just bad solder connections, but sounds like by now the chip is bad.
Should be mounted on one of the larger heat sinks on the chassis. It will hav e from 5 to 12 pins or so on it. #'s such as LA7832, LA7838, or such, possibly something different, but likely available on ebay.
There should be a capacitor off of that chip, rated at 35 volts or maybe 50 volts, and 100UF or so, it WILL be bad. Replace this and the chip--and see if that helps. It is possible that the fuse resistor from the SMPS or flyback has opened--when the chip failed, and if toy have a meter, you can check and see of the 25 or higher voltage supply is there for this chip when power is on. If it is NOT there--a resistor off of either the SMPS power supply, or the flyback has opened, this will be a low value resistor, 10 ohms or less.
Sams has a manual, photofact # 4526
|
02-11-2015, 07:37 PM
Threaded Mode