Question about Sony KV-36XBR450 36" TV
This may be due to a faulty A Board, one way to verify is to disconnect the keypad from the main board and check if this is still happening, if so then the A-board is the problem, this is the board with the microprocessor is on, The micro processor may be faulty. you can try resetting the unit back to factory default by starting with the tv power off then hit the DISPLAY button on the remote then Number 5 , then Volume down then power button, you have to do this all within 5 seconds or it will not work. Once you are in the service hit the number 8 key to reset, TV will shut down and come back on by itself and be on channel 3. Any setting you may have set will be erased and the unit will be back to factory as when you brought it,. IF this does not help then consider replacing the A board. It my not be avaiable any more in which case time for a new TV..
Posted on Dec 19, 2010
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Posted on Jan 02, 2017
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Try doing this:
Self-check indication only:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control
for more than 3 seconds.
Self-check indication and forced to factory shipment setting:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote
control for more than 3 seconds.
Disconnect the AC cord from wall outlet.
This is straight out of the service manual.
Joseph Van Buren
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