VIZIO TV (Model:VL370M) Display not working

[nomoresonys]

Re: VIZIO TV (Model:VL370M) Display not working

maybe check all the test points and see if there's any differences if you havent already.

Oops my bad, dont know what I was thinking, I must have just wrote down what I read in your post.

[L3git]

Re: VIZIO TV (Model:VL370M) Display not working

Yeah I've noticed that too looks like VGH is half of what it should be for a working TCON board. It's interesting to see what you guys do to troubleshoot. I'm curious how come VGH is a problem why is the voltage lower than it should be?

[dskall]

Re: VIZIO TV (Model:VL370M) Display not working

I think vgh is created by a voltage doubler circuit. Maybe a shorted diode. I can't read the chip that generates the t-con voltages.

[L3git]

Re: VIZIO TV (Model:VL370M) Display not working

Hm I see so it's one of those little metal pieces like C25, C76, C61 or that area around it that's shorted?

[dskall]

Re: VIZIO TV (Model:VL370M) Display not working

C are capacitors. D are the diodes

[nomoresonys]

Re: VIZIO TV (Model:VL370M) Display not working

can check the caps meter in diode mode, probe on each end, shorted if continues to beep or reading close to 000, if one reads short remove and check off board, if it's ok off board then something else was making t read short.