Tv tucson 26hd782

[sebuncle]

Hi ,
i have a problem with a tv tucson 26HD782
mainboard is a 17MB12-3
colors are distorted (see photos )
can you help me please to find problem
Many thanhs

[ReeceyBurger123]

Re: Tv tucson 26hd782

Hello what Tcon is used in this tv ?

[sebuncle]

Re: Tv tucson 26hd782

Hi ,
T-CON is inside mainboard.

[ReeceyBurger123]

Re: Tv tucson 26hd782

Can you take pictures of the boards and how they are laid out please, looks to me like a fault gmma Ic or the Lvds setting is wrong in the service menu.

[sebuncle]

Re: Tv tucson 26hd782

here's photo of mainboard

[ReeceyBurger123]

Re: Tv tucson 26hd782

Hmm can you remove that card where the Lvds plugs in ?

[sebuncle]

Re: Tv tucson 26hd782

here's without card :

[budm]

Re: Tv tucson 26hd782

I like to see the other end of that white flat LVDS cable that goes to the panel, it looks to me the panel may have integrated T-CON, and that board is just the connector converter. Are there SMD components on that board?
Is there a model number sticker for the LCD panel to look up the spec sheet?

[sebuncle]

Re: Tv tucson 26hd782

heres's photos
in menu only images are distorted , letters are ok

[budm]

Re: Tv tucson 26hd782

Panel with Integrated T-CON.
V260B1-11 REV. C1
Not much you can do to fix it.
You need to get access to the board to do the Gamma Voltages check.

[freakaftr8]

Re: Tv tucson 26hd782

Corrupt firmware possibly?

[ReeceyBurger123]

Re: Tv tucson 26hd782

Also try checking the Lvds mode in the menu:
Press menu
Then 4725
A service menu will appear
Go through the options till you find Lvds Mode
Try changing the Lvds mode and see what the screen does

If not this is possibly a hardware failure.

[sebuncle]

Re: Tv tucson 26hd782

Also try checking the Lvds mode in the menu:
Press menu
Then 4725
A service menu will appear
Go through the options till you find Lvds Mode
Try changing the Lvds mode and see what the screen does

If not this is possibly a hardware failure.

yes!!
i have change Lvds mode and screen is ok
thanks a lot

[ReeceyBurger123]

Re: Tv tucson 26hd782

Nice one Common issue on these Vestel boards Lvds mode messes up, I have no idea why just guess that the firmware glitches nice fix ! Also the lcd panel used in that tv is very problematic so let us know if you have any issues again.

In the mean time enjoy the tv

[budm]

Re: Tv tucson 26hd782

Nice fix, so what mode was it in to cause that symptom? and what mode did you change it to?

[sebuncle]

Re: Tv tucson 26hd782

i go to video ---> lvds mode , it was on "yes" , i have change to "no"

[ReeceyBurger123]

Re: Tv tucson 26hd782

I think when its on yes the mainboard inverts the gamma voltage, no idea why Vestel included this though.

[freakaftr8]

Re: Tv tucson 26hd782

Nice fix good job!