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Old 10-07-2015, 09:47 PM   #79
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Join Date: Feb 2010
City & State: S.F. Bay area
My Country: USA
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Posts: 34,733
Default Re: Sony Bravia no picture but backlight on

These are the boards used in your TV:

So I am sure where you get the word 'SIGNAL' board from.
Can we see the screen shot of the problem?
Never stop learning
Basic LCD TV and Monitor troubleshooting guides.

Voltage Regulator (LDO) testing:

Inverter testing using old CFL:

Tear down pictures : Hit the ">" Show Albums and stories" on the left side

TV Factory reset codes listing:
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