The set is almost five years old and when it tries to power up and cuts off it does not show any trouble codes. The only light on the set is the green led that shows power.
SOURCE: green pixel lines
It sounds like a bad LCD panel but you would have to post a picture of the problem for me to be sure
SOURCE: sony bravia kdl-52w3000, turn tv on, no picture or
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).
SOURCE: My Sony Bravia KDL-26S3000 won't turn on and is stuck in standby.
Hi,
There is a power fault with one of the PCB's inside, contact Sony if you are still in warranty, if not contact a Sony service center as it will need an engineer to open it up to repair it.
Thanks
SOURCE: My Sony Bravia Kdl40v300 will not turn on When I
sorry. Hope you still have a waranty. This is not an uncommon problem with the sony's. 99% chance that the panel went out. Could also be a balance board issue, but usually not. Call Sony for an authorized repair center
SOURCE: My sony bravia keeps switching from
Ur power supply board is dead.Power supply board have dead capacitors like leakages gases,that bulges up it top or puff up it top.U know basic electronic's and soldering,replaced these leakages gases capacitors.Or tries websites like Shopjimmy.com,Ebay,com to buy a refurbish power supply board for the replacement.
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