tech32dledbms weird picture

[Newbie123]

Hi all got a 32 inch techwood tech32dledbms,vestel tv here,it powers up and off with a weird white patch/line in the middle of the screen..
Im thinking screen panel but is it worth buying a 17mb82-2 mainboard to find
out if its the mainboard?.
Ive had a lot of vestel led tvs and its normally reflashing/backlights/diodes.
But ive never seen one like this,the person i got it off said it had not been knocked..
Thanks for any advice there must be somebody who has had one like this,
of course it could have been knocked..

[dick_barton]

Re: tech32dledbms weird picture

Any photo's of the inside. Is it an integrated Tcon or a separate board?

[Newbie123]

Re: tech32dledbms weird picture

Hi there is no tcon board only power board and main board.

[Newbie123]

Re: tech32dledbms weird picture

main board is 17mb82-2

[dick_barton]

Re: tech32dledbms weird picture

Can you post photo's of your boards and back of the set showing how they all connect.

Do you have this board?
https://www.ebay.co.uk/itm/6871L-320...-/332431270810

[Newbie123]

Re: tech32dledbms weird picture

no theres no tcon board so its either panel or the mainboard 17mb82-2,the only way i will know whether its the screen or board is buying the board i guess..

[diif]

Re: tech32dledbms weird picture

Can we see the whole of the back of the TV please.

[Newbie123]

Re: tech32dledbms weird picture

Ive put the tv back together now,all thats in there is the two boards the power board works fine and the only other board to change is the 17mb82-2 i was hoping to see a tcon board in the tv but theres def no tcon board,it was the first thing i looked for as i know some versions of this tv have one.Without a lcd panel tester i guess ill have to buy the board on ebay and take a chance,by the way does anybody have one of the cheap led panel testers from ebay?,and do they work with vestel?,are they any good or a waste of money?,as most of the tvs i get are vestel,thanks.

[dick_barton]

Re: tech32dledbms weird picture

The led testers are a useful device but it drives the leds at a lower current than they generally operate on.
If you have an open circuit led string then the leds will not light so it's useful for that test.
If you have a led(s) breaking down at a higher current than the tester can supply then the tester could not indicate that fault.

Ultimately it depends on how many sets you intend to work on.

[Andrew F. Ali]

Re: tech32dledbms weird picture

I have a EXV2010 LCD Panel tester With this one you can test the Main Bd. T-CON Bd. and Panel. It has a built in screen so by supplying the Main Bd. with voltage and taking the LVDS signal from the Main Bd. and , just connect directly to the tester and you would determine if the Main Bd. is working or not.

[dick_barton]

Re: tech32dledbms weird picture

What does your tester look like?

[Newbie123]

Re: tech32dledbms weird picture

Thanks for the advice guys,some great people on these forums,enjoy the sunshine while it lasts,ill look in to that tester andrew,as for my tv ive bought another mainboard for 9 quid from ebay so will soon find out if its the panel!,will update after it comes.

[Andrew F. Ali]

Re: tech32dledbms weird picture

This is what it looks like. This is not my picture. Actually it was given to me as a gift from a fellow engineer from Malaysia.