photo negative LG 47" LW6500

[quietwar]

Hi I have a 3d LG 47" LW 6500. The screen has washed out colors and the menu does as well. I tried replacing the tcon to no avail. Everything works fine and the firmware is up to date. Is it the panel? Any help would be appreciated.

[budm]

Re: photo negative LG 47" LW6500

Looks like bad GAMMA Voltage ref problem in the T-CON board.
Pictures of the back side of the TV?

[quietwar]

Re: photo negative LG 47" LW6500

You want pics of the panel without the metal sheet? Or with the attached boards? Sorry if this sounds like a ridiculous question. I'm a newbie and I am trying to learn

[budm]

Re: photo negative LG 47" LW6500

You have to carefully remove that metal shield to get to the T-CON board. Show us the back side of the TV.

[quietwar]

Re: photo negative LG 47" LW6500

Hi,I took off all of the boards but I didn't feel qualified to remove the metal shield that remained. It didn't come off easily and I got nervous forcing it.I took two more pics of the screen. Any advice on how to remove the shielding

[quietwar]

Re: photo negative LG 47" LW6500

Forgot to include these pics.
Thanks

[Moreno83]

Re: photo negative LG 47" LW6500

Post pictures of the shielding. Maybe there is a foot attached to the shielding. Dont forget to remove the screws near scart/hdmi section

[Shinju]

Re: photo negative LG 47" LW6500

A lot of times these shields are taped down with anti static tin tape or some sort of felt tape. Also they could be stuck to the top of the sponge like chip heatsinks.

Take a look around the shield sometimes they can be surrounding the TFT ribbons so you don't want to yank it off.

Most are only held on by 4-5 screws.

http://www.shopjimmy.com/lg/47lw6500-ua

[quietwar]

Re: photo negative LG 47" LW6500

Hi, I bit the bullet and took this to an electrician. They said that an I.c. was bad on the panel. Oh well. Thanks anyways

[tibimakai]

Re: photo negative LG 47" LW6500

I would still try a T-con.

[quietwar]

Re: photo negative LG 47" LW6500

I tried that in my original post. Didn't work. Also, the shop tried it with a new one, same result.

[tom66]

Re: photo negative LG 47" LW6500

I would say bad LCD panel then is the next most likeliest option.

[nomoresonys]

Re: photo negative LG 47" LW6500

so your saying the shop guy tested the IC on the panel?

[tibimakai]

Re: photo negative LG 47" LW6500

Once, I had happen something very similar, with another older TV.
There is usually an adjustable resistor, on the panel's PCB and it was touching(shorting) to the panel's metal frame.

[tibimakai]

Re: photo negative LG 47" LW6500

Once, I had something very similar, with another older TV.
There is usually an adjustable resistor, on the panel's PCB and it was touching(shorting) to the panel's metal frame.

[Louis82]

Re: photo negative LG 47" LW6500

Hello there. I have the same tv series LW6500 but a 65". One side of screen looks wash out and the other half is black. Disconnecting the ribbon cables from the t-con (wash out side) the whole screen looks perfectly black. I would like to give T-con a try but can't find this board anywhere. Any suggestion on component level repair options? T-Con Part Number: 55.64T05.C04

If any body have the board for sale pls message me.

Thank you guys.

[ROOBZ]

Re: photo negative LG 47" LW6500

Hi, i have the same TV having the same problem, washed out picture with a single bad vertical line. And i cant find any other posts on this same model. would it be wise to post my photos and steps to this thread? i haven't opened her up yet. but would love to help someone else as reading through some other posts helped me to repair a friends Samsung with a bad IC AS15 chip. or would it be better to start a new thread? thanks for your help!