Question about Sony Televison & Video
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Posted on Jan 02, 2017
Most likely this is caused by a defective main board. Changing the main board will fix the issue about 95% of the time.
To be absolutely sure, the voltages need to be checked on the power supply. If they are not the values listed in the service manual, then you should replace the power supply instead (accounts for the other 5% of the time).
Posted on Oct 07, 2009
Most of the time the " T-Con" board is the cause. On a lot the Sony models, this board is not replaceable without replacing the LCD Panel. Sony has been making more of them available but you would need to check with Sony's Parts Department if it is available for your Model.
I hope this helps,
Posted on Jan 05, 2010
That symptom may cause by the main board or t-con board, I suggest you do software up grade first.
Posted on May 07, 2010
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