Samsung tv le40d550k1w solarized problem

[Xristakis795]

Re: Samsung tv le40d550k1w solarized problem

Hello again
I finally measured the trends to draw a conclusion about the Gamma, I believe that the measurements are good, I would just like someone experienced to confirm it
I have a doubt about Vcom on my Tcon board 31T09 -Col T315HW04 VB part number 5540T04C12 I did not find a VCom point only VGNDE and I measured it in terms of ground (chassis of the TV) 0volt but if this point is the same as the potential of the earth it seems logical but I can not to understand how else VCOM can be mentioned.
The other trends I have always measured in relation to the chassis
of the TV are
VGH 28VOLT
VGL -6VOLT
AVDD 15.84VOLT
VG1 15.14VOLT
VG2 14.83VOLT
VG3 12.43VOLT
VG4 10.9 VOLT
VG5 9.84 VOLT
VG6 8.63 VOLT
VG7 8.51 VOLT
VG8 7.51VOLT
VG9 7.12VOLT
VG10 5.35VOLT
VG11 4.61VOLT
VG12 3.325VOLT
VG13 0.657VOLT
VG14 0.35VOLT
in addition the complete one that is responsible for Gamma was relatively cold in no case did it heat up
What do you think of ordering a new Tcon?

[diif]

Re: Samsung tv le40d550k1w solarized problem

The gamma voltages are off. VG6-VG9 and VG13.

[Xristakis795]

Re: Samsung tv le40d550k1w solarized problem

I can not understand sir how you came to this conclusion but I will look for it according to the .xls file you have given in the forum
So I have to get another Tcon board because it has a problem
Thank you very much for your help

[nomoresonys]

Re: Samsung tv le40d550k1w solarized problem

How so? I don't see a problem with the gammas.

[Xristakis795]

Re: Samsung tv le40d550k1w solarized problem

Really ? I was confused now the only trend I could not find was Vcom I measured one that said Vgnde which I thought was this
As for Gamma now after two different points of view I am in a dilemma because I find my own part number only from America and it will cost a lot so I wanted to be sure
What do you suggest I do?

[Xristakis795]

Re: Samsung tv le40d550k1w solarized problem

this is the graph of gamma in relation to the trend does not seem to me and so linear do you agree that you are more experienced? or
does it seem normal to you?

[nomoresonys]

Re: Samsung tv le40d550k1w solarized problem

Looks fine to me, if there's a problem I don't see it.

[Xristakis795]

Re: Samsung tv le40d550k1w solarized problem

thank you sir for your opinion but if you are right then unfortunately it is the panel
I have changed mainboard as I mentioned above I have cleaned and reinstalled cables I have done factory reset firmware upgrade I hoped it was Tcon board
But as it seems from the measurements, it is probably Panel if you are right and not Mr. Diif, so the repair is not worth it

[diif]

Re: Samsung tv le40d550k1w solarized problem

It's supposed to be a straight line between the first and last point. It clearly isn't.

[Xristakis795]

Re: Samsung tv le40d550k1w solarized problem

Just because in a video from the shop Jimmy I saw it says that if you have distorted colors in the menu when you have a solarized problem it is Tcon and my own TV has distorted colors and in the menu I will probably buy a Tcon and whatever happens

[petehall347]

Re: Samsung tv le40d550k1w solarized problem

have you tried setting the colours in the menus ? start at black and white .

[Xristakis795]

Re: Samsung tv le40d550k1w solarized problem

yes whatever I tease brightness contrast etc has no effect

[petehall347]

Re: Samsung tv le40d550k1w solarized problem

i have had one with a bad tcon ic and it was almost possible to adjust to a watchable picture .

[Xristakis795]

Re: Samsung tv le40d550k1w solarized problem

in my case that adjusting and making the image is distorted
Do you remember what adjustments you made in your case and the image improved?

[petehall347]

Re: Samsung tv le40d550k1w solarized problem

turned the colour down mainly .. and contrast i think .was a while back now

[Xristakis795]

Re: Samsung tv le40d550k1w solarized problem

I did it without result, however, thank you all for the help