Question about Sony Televison & Video
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Posted on Jan 02, 2017
Led blinking Three times means B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.
If you have electronic knowledge you may be able to fix it. Let me know if I could help you further.
Hope this helps.
Posted on Jan 25, 2008
It seems problem in BY board in your KV-34HS420 TV. this board is called DRC Engine as well. Its part number and description is ...
A-1302-942-A HBY BOARD, COMPLETE
Its available HERE and price is apporx $82.00
Hope this info will help you out.
Posted on Aug 15, 2008
SOURCE: sony 40" tv kv-40xbr800
shutdown. The high voltage has exceeded 33k and the unit goes
immediately into safety shutdown. Check power supply regulation and
Posted on Dec 28, 2009
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