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Samsung Ue40H5500AY , T-con problems .

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amennone:
Hi, the TV has problems with the screen, the image is dark and undefined.
There is no VGH power supply.
With an external 32 volts power supply everything is ok.
How is VGH managed?
what can i check?
Thanks and good job

downunder:

VGH will be generated by a dc-dc converter on the T-Con. I'll upload a LG T-Con training manual to the downloads section of this forum. The principles will be the same and it may assist you.

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