Philips 55PUS7303 LCD lines

[rtstorm]

Hello, I have this 55" Philips TV that suddenly has these vertical lines on the LCD panel. I have checked the T-con board and I noticed some caps have 40Ohm I don't know if this is normal. These caps have 1.2V on them. I mark them on the photo with a silver pen. The T-con board has 1.2V, 12V, 25V, etc. Does anyone have any idea what could it be?
i try to disconect one ribon cable and the problem is the same, one side is white other side have the lines (the same is in other way)

T-con model: 55T32-C0L
Main Board: 715G8579-M0F-B01-005T

[Diah]

from initial boot photo it sound to me mainboards data issue

how about if you disconnect half screen.. did you get half clear white?

[rtstorm]

Here is the image

[Diah]

mainboards data issue.... try with first SW , if didn't help then check after vision Soc could be there BGA no vision... wrong from me.... let see yours mainboards with out heat sinks

go here and under TPM171E

download from 2018 download early firmware with upgrade_loader put it on USB formatted FAT32 MBR mode

[Davi.p]

100% faulty panel..!! i'm afraid..
(VGL leakage)

[rtstorm]

I did the firmware flash but the issue is the same. I Downloaded the FW and Loader. Extracted FW and Loader and put in the root of the USB 8GB FAT32. This is the version I tried

TPM171E _ 107.000.230.000 – Date: 2019/03/11 (Upgrade_Loader)

Is this correct way?

[Diah]

on same side where you download they write how to do.... USB stick must formatted FAT32 in MBR mode

[rtstorm]

i have tried 2 version now and the problem is the same on the TV.

[Davi.p]

Don't hope.. relax.. bad screen..

[Diah]

i have tried 2 version now and the problem is the same on the TV.

disconnect the LVDS from the T-CON and fed the fuse on T-CON 12V on F101 to test the panel and t-con as stand alone., you should have color pattern

[rtstorm]

I disconnected the LVDS from tcon board, turn on the TV and put 12V on F101 but the screen is black

[Diah]

I disconnected the LVDS from tcon board, turn on the TV and put 12V on F101 but the screen is black

did the backlight come on?

[rtstorm]

Yes, backlight is on. But there is no image.

[Davi.p]

In the test pattern the first seconds screen is black, then white. green etc..

[Diah]

Yes, backlight is on. But there is no image.

replace mainboards

[rtstorm]

I was able to capture the white line on first second when i connect the 12V after that is all black.

[Diah]

I was able to capture the white line on first second when i connect the 12V after that is all black.

from where you got the 12V ?

[Davi.p]

Don't buy any board unless a gift from Diah!! Bad screen, but some clever tinkerer can obtain an usable set from this..

[rtstorm]

from where you got the 12V ?

I have bench power supply

[Diah]

Don't buy any board unless a gift from Diah!! Bad screen, but some clever tinkerer can obtain an usable set from this..

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