Hello, have a Toshiba here with a vestel chassis,and the picture is fine for 20minutes, then it go's black, shine a light on screen and the picture is there,,anyone had the same?
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Re: Toshiba 40L3451DB
PictureAttached Files -
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Re: Toshiba 40L3451DB
On the black lead of the screen voltage it drops from 35v to 25v and on the red lead it drops from 180v to 119vComment
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Re: Toshiba 40L3451DB
I guess not
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Re: Toshiba 40L3451DB
Do you have a pic showing the all boards
Its most likley going to be the leds, to be honestComment
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Re: Toshiba 40L3451DB
Yep, we need the pictures of the whole back side of the TV showing how all the boards are connected together.
Based on this description: 'on the red lead it drops from 180v to 119v' it sounds like you have open circuit in the LED string.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=24809Comment
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