Its common for a power spike to hit the AC line before a power failure like you had, chances are it damaged the power board in the TV and will need to be replaced or serviced
Check the power dispenser
SOURCE: no power
i got a 62VS69A model type hitachi tv.... and it was thunderin and lightning outside all day .... and i left it on ... and when i woke up ... it was off..... and when i went to turn it back on.... it blinks blue,, then the light below it blinks red.... and the light below that light blinks red .... and then the first blue one again ... and over and over again ... untill finally it juss stays red... i donno whats goin on with this tv... im assumin it was the bad weather outside that did it but im not sure..... can someone PLEASE help a brother out ? lol
SOURCE: Sanyo DP42746 - Screen went black and no sound. Power light on.
The TV is on protect mode.
Try first leaving the TV power cord unplugged for some times, let say one hour or so.
Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.
If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.
The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.
1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.
2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.
If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.
If you are in situation 2 , then there is an internal fault.
Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.
Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.
If under warranty contact the manufacturer ringing the number on the user manual
If you want to repair at your own expenses, just locate any good qualified repairer.
SOURCE: Sanyo DP5747 Plasma TV no power
Found 1 of the 2 ac supply ( 8amp) fuses blown on the main pwr. supply. Replaced fuse and good so far. Looked over the ps for damaged components, none found. Checked current with ampmeter with tv on, showing 3amps. Cheers
SOURCE: Sanyo LCD no power
Hello, the problem could arise from one or two faulty components, but you have to open the back cover of the television and check for the fuse if it is blown up , and if blown up replace with the same rating. Since you have no ideas on television you can contact the manufacturer, but likely component that may go bad are the capacitors, power transistors and regulators...
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