LG 32LN 540B TV Sound but no video

[CostasCostas]

Re: LG 32LN 540B TV Sound but no video

Should have gone to Specsavers. I'll post the readings from these test points shortly.

[CostasCostas]

Re: LG 32LN 540B TV Sound but no video

VGH_R, VGH_F, ODD and EVEN all read MINUS 4.99V

[dick_barton]

Re: LG 32LN 540B TV Sound but no video

Here's a guide that was put on the forum a few days ago worth looking at.



It does look as though you probably have a faulty Tcon.

[vinceroger69]

Re: LG 32LN 540B TV Sound but no video

Here's a guide that was put on the forum a few days ago worth looking at.



It does look as though you probably have a faulty Tcon.

your link is not working?
my link looks like yours but works fine on my pc odd when i click your link page not found
edit this may work
https://cdn.badcaps-static.com/pdfs/...d6ef3fc97d.pdf

[CostasCostas]

Re: LG 32LN 540B TV Sound but no video

@dick_barton if you had seen the photo of the LCD panel board you probably wouldn't suspect the t-con. The left side of the board (from the front of the TV) looks in a right state.

Picture now added.

Over the last week or so I had priced up new t-con boards and found them very reasonable at $20 including delivery.

Not checked the lcd panel boards yet but is it possible for a beginner to actually swap out these boards, even if they don't cost an arm and a leg?

[dick_barton]

Re: LG 32LN 540B TV Sound but no video

It's hard to see just how damaged the circuit board is because of the flashlight. However you can try with cotton buds and alcohol to clean it up as much as possible but very, very carefully so that you do not damage any ribbon connections.

These circuit boards are attached to the lcd panel and unfortunately if they are damaged then the panel is useless. You cannot change the circuit board.

[CostasCostas]

Re: LG 32LN 540B TV Sound but no video

A couple of shots before and after the clean up.
Well and truly dead. Seems a shame that such an integral board that only costs a few dollars to produce can't be replaced.

[dick_barton]

Re: LG 32LN 540B TV Sound but no video

It is really annoying that they put the Tcon and panel tabs at the bottom of sets knowing full well that they are easily damaged.
Sell your power supply, mainboard and leds to get some money back towards a replacement set. When you advertise the mainboard also give the panel details it was connected to.

[CostasCostas]

Re: LG 32LN 540B TV Sound but no video

I was planning to use the power supply to power up a couple of Omega2+'s that are very fussy about the precise voltage they require. Must be spot on 3.3V or they'll not bootup.