LG flatron w2363d half screen is bad

[anno]

hi
i have a lcd monitor. LG flatron w2363d. half of the screen is bad. is this a panel,mainboard or tcon problem?. is there a way to find out? I reseated all the cables like the lvds cable. and pressed on lcd cables on the screeen without picture changing

[budm]

Re: LG flatron w2363d half screen is bad

Can I see the picture of the back side of the LCD panel to see if it has integrated T-CON board or stand alone T-CON board? If it has big long board, then not much you can do.

[anno]

Re: LG flatron w2363d half screen is bad

it has a stand alone T-con board. is there anything i can do?

[selldoor]

Re: LG flatron w2363d half screen is bad

Carefully clean the flat ribbon cables shown at the top of your picture. Had there been two matching voltage regulators - one for each side -I would have suggested testing but as there is only one I dont know. Perhaps budm will pick it up later.

[Rtech]

Re: LG flatron w2363d half screen is bad

I know from my TV experience, that the Tcon/LVDS board can cause your fault in some cases.

[Davi.p]

Re: LG flatron w2363d half screen is bad

I don't knew that there was one regulator per side, but if yes if there are 2 inductors it means 2 switching regulators so try to measure voltage across C100 and C84, after that i don't know wich voltage we must expect but later we can inspect this.

[anno]

Re: LG flatron w2363d half screen is bad

i already have cleaned the cables. i try to take a measurement on the T-CON

[anno]

Re: LG flatron w2363d half screen is bad

i did take some measurements. on the two diodes near switching regulators i have on
d15 3.3v
d16 12v
F1 12v
u2 pin1 0v pin2 1.8v pin3 3.3v
l2. 3.3v
l2 12v

[Davi.p]

Re: LG flatron w2363d half screen is bad

"l2. 3.3v
l2 12v"
i don't know what are we here to do for..
why and how you tested l2? Why you wrote 2 times L2?
That L2 means voltage across his pins or from one to GND?
if u don't want to do my suggest tell me.. i'll go away

[anno]

Re: LG flatron w2363d half screen is bad

it is type error. i measured from ground. i try on c100 and c84. i measure on the cathode of the diodes , it is output right? and l1 and l2 are usually outputs of voltage regulators too.

[Davi.p]

Re: LG flatron w2363d half screen is bad

no is not output.. yes l1-l2 are on the output but depends wich side you measure.. why you don't measure across caps 8-( ?