Question about Sanyo AVM-3659S 36" TV
I have a Sanyo AVM-3689G and the screen wen't black and now has a high pitch squeal. I called out a repairmen, the poor guy took the board back to his shop to work on it but it still has the squeal. The repairmen or his wife could not hear the squeal. It may have been because they were a little old. Do I need to have a younger repairmen come out to see if he can hear the squeal or is it an easy fix.
Maybe you can give me some idea of what component the repairmen should test for failure..
Any help would be appreciated.
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Posted on Jan 02, 2017
Hi, that probly a power supply plroblem, or a high voltage regulator and the horizontal transistor that drive the high voltage transformer at a high frequency (15.000 hz )if you think you can trouble shoot that ok; if not ask a friend who you no he nows about trouble shooting in tv. or you can go to a repai r shop should not cost to high half hour + parts
Beware high voltage in there(30 thousand volts
hope that help you
Posted on Mar 13, 2010
SOURCE: no picture,no sound,blank
This set is very popular for the capacitors to dry upa and go bad in the main SMPS as well as the switching power supply. If you have no know how on how to test capacitors or solid state electronics please take the set into a repair shop for an estimate
Posted on Jul 28, 2006
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