toshiba 37av500u

[xredhawk]

Hello, i need help trouble shooting this tv, the back lights come on but no picture no display from menu, hoping you guys could point me in the right direction, thanks

[tom66]

Re: toshiba 37av500u

Pictures of the chassis and of each board would be helpful.

[xredhawk]

Re: toshiba 37av500u

[tom66]

Re: toshiba 37av500u

OK, you will need to remove the metal frame assembly holding the power supply and main board (top middle and bottom middle), to get to the t-con, which is the prime suspect.

[drpj23]

Re: toshiba 37av500u

Probably would be a good idea to verify voltages before going to the TCON.
Just had an LG (I know different make but still applies) with same symptoms and was due to bad cap in p/s.

[xredhawk]

Re: toshiba 37av500u

thanks , been away from tv for a bit, seems im not getting the right power to tcon

[xredhawk]

Re: toshiba 37av500u

how many volts should i expect going to tcon, thanks

[tom66]

Re: toshiba 37av500u

5V or 12V usually.

[xredhawk]

Re: toshiba 37av500u

ok , im not getting nowhere near that about 2 volts or less, thanks

[tom66]

Re: toshiba 37av500u

Does this change when power button is pressed?
Where are you testing it?

[xredhawk]

Re: toshiba 37av500u

tcon cable on motherboard,

[tom66]

Re: toshiba 37av500u

Can you try testing at the ends of the fuse on the T-con board?

[xredhawk]

Re: toshiba 37av500u

ok, will repost back with results later today

[xredhawk]

Re: toshiba 37av500u

ok i tested the volts to the fuse, im not getting anything, but fuse checked good,

[xredhawk]

Re: toshiba 37av500u

[xredhawk]

Re: toshiba 37av500u

thats picture of my tcon, i borrowed from another site

[tom66]

Re: toshiba 37av500u

Really need a high resolution closer image, so we can trace it through, I do not have this board in front of me, so the pictures are my eyes.

[xredhawk]

Re: toshiba 37av500u

ok if i link ya to the exact board on ebay , it has zoom feature

[xredhawk]

Re: toshiba 37av500u

http://www.ebay.com/itm/TOSHIBA-37AV...-/251209726676

[tom66]

Re: toshiba 37av500u

Check the 24V/1A fuse.