Ok so I have this tv it does the green power blinks over and over but if I hold down the power button something clicks and the light turns red. Then I press again and tv powers on screen lights up as in shows the whole snowy screen and then back off real quick and flashes the green power led again. I looked but don't see any blown caps. What can I check
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Re: Sharp lc-52sb55u powers on then off 3 secs later
For us to help we will need good clear pictures of the whole backside of the TV showing all the boards, and the straight shot pictures of the whole top and bottom side of the power supply board so we can read the printed texts on the board.
It is hard to do long distant troubleshooting without seeing what we are dealing with.
What is the history of the TV? Any works were done to the TV before?
The more details we get the better chance of finding the cause of the problem.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: Sharp lc-52sb55u powers on then off 3 secs later
Last one I had with a snowy screen turned out to be a faulty mainboard.Last edited by nomoresonys; 11-10-2018, 12:22 PM.Comment
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Re: Sharp lc-52sb55u powers on then off 3 secs later
Ok I will get all the pictures needed and upload them. No other work was done to the tv that I'm aware of.Comment
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Re: Sharp lc-52sb55u powers on then off 3 secs later
Let me know if I need better pics or different angles. Thanks again for the helpAttached FilesComment
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Re: Sharp lc-52sb55u powers on then off 3 secs later
Are these pics ok or you need something different?Comment
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I'm stumped on this guy, so wanted to see if anyone has any further ideas:
Intro:
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Hello, I'm new to this forum. I like to tinker with Sony electronics, I have been lucky trouble shooting sony stuff, But I can't find much info on this Sharp TV.
The problem; plug to power>white led power indicator light is on>it turns on to the red Sharp logo>
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does...
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