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Sony Kdl-70w850b Standby light blinking 3 times after storm    
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iceburg501



Joined: 12 Sep 2016
Posts: 1
Location: Houston

PostPosted: Mon Sep 12, 2016 11:14 pm    Post subject: Sony Kdl-70w850b Standby light blinking 3 times after storm Reply with quote

I have a Sony Kdl-70w850b and after a thunder storm (oddly tv was plugged into an expensive surge protector and the other components survived, all items were off btw). Now when I turn the unit on, the standby light flashes red 3 times with no picture/sound.



I have already attempted to follow the instructions to perform an unplug and re-plug directly into the wall socket to reset, no luck.



I need to confirm which part is bad. Internet search says its a bad "Power Supply Board". Please confirm that this is case based on the symptom. Also please confirm the replacement part number is:

BOARD: 1-893-060-11
PART: 1-474-565-11

.

I contacted Sony customer care and it was a total waste of time.

Thanks in advance.
Google

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JTS1957



Joined: 21 Jan 2009
Posts: 2242
Location: Far, Far Away

PostPosted: Tue Sep 13, 2016 1:42 am    Post subject: Reply with quote

CN6401 Pin #23 = 3.3 volts Standby?
CN6401 Pin #28 changes state when Power button is pressed?
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