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Old 12-20-2015, 05:48 AM   #21
Diez10
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Default Re: Samsung LE27T51B inverter problem

Hi,

I have a similar problem with LE27T51B.

When I turn on the LCD, the backlight turns on and off below.
But turn off the contact (CN11) of the PCB Invter , the backlight is turned over longer.
What can be?
And that contact CN11 is this ?
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Old 04-21-2017, 09:57 AM   #22
chrle
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Default Re: Samsung LE27T51B inverter problem

I have problem with this tv ,tv dont turn on,changed all bulged caps ,voltage is ok but screen not turning on.
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Old 04-21-2017, 10:01 AM   #23
budm
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Default Re: Samsung LE27T51B inverter problem

Quote:
Originally Posted by chrle View Post
I have problem with this tv ,tv dont turn on,changed all bulged caps ,voltage is ok but screen not turning on.
Exact same model and the exact same boards are used in your TV?
How about providing good clear pictures of your boards and the Voltage readings of the power supply and the command Voltages?
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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
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Old Yesterday, 08:57 AM   #24
chrle
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Default Re: Samsung LE27T51B inverter problem

I have DARFON V070 $H.V0708.001/E5 inverter board

secondary resistance on tranformers are 950ohm ,but one in the midle of invertor board have 891ohm

primary resistanceare 1,7ohm ,but one have 2.2

is this good or?

I cant find fuses on this board.
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