What's your question? This is not normal and nothing you can fix- Im saying with respect " what is your question or what would you like to know?". This is not normal you may try and initiate a reset. You can also test to see if this exact sequence is working or if maybe the power is time dependent with no dependencies on other button presses and combinations of? Did you attempt to enter into some type of manufacturing menu before this issue? What happen before this start to happen? What led you to the combination of key presses you use to power on the set? Have you try the remote? Are there other issue besides this one? ETC I can go on and on but.....
good luck
https://www.6ya.com/mrmmike
SOURCE: Clicking sound!
The TV is on protect mode. The clicking sound is the protection switch
that keep turning the TV off to prevent further damage, this happens
when a fault had been detected.
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.
If you want to DIY you find parts here,
Appliance parts, electronics parts & more from PartStore.com
Encompass Parts Distribution
Electronic Replacement Parts: Plasma & LCD TVs, Appliances |
SOURCE: My Sceptre LCD TV Power turns on briefly (blue
Power supply is the place to look, look for bulging on top of the capacitors in the secondary side of the main power supply.
SOURCE: 47in Phillips-tv picture goes black still has
Could be the signal board has a bad cap, in this case it sounds like you are getting intermitten power to the inverters....when the tv goes down and of course you have audio....Shine a flashlight on to screen and see if you have a picture...look carefully. If this is the case..you have the above problem!
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