Samsung 305T bad picture

[andrew1]

Hi,

Sometimes it works flawless. Could be a bad DVI cable or something else? Thank you.

[1supertech]

Re: Samsung 305T bad picture

Try VGA cable

[andrew1]

Re: Samsung 305T bad picture

Try VGA cable

This monitor has one DVI port. VGA cable is not compatible.

[spidey]

Re: Samsung 305T bad picture

reseat the fly cable, logic board to screen.

[andrew1]

Re: Samsung 305T bad picture

reseat the fly cable, logic board to screen.

I did that but no change. This is how black background looks. If you look closer you see something like vertical lines. In windows alot of colors are missing in the center of color wheel from color correction section (all are replaced with this color I see on black background).

[lexwalker]

Re: Samsung 305T bad picture

Sometimes it works flawless. Could be a bad DVI cable or something else? Thank you.

I did that but no change. This is how black background looks. If you look closer you see something like vertical lines. In windows alot of colors are missing in the center of color wheel from color correction section (all are replaced with this color I see on black background).

Try cleaning the LVDS cable and the FFC/FPC connectors on both the Tcon and Dscaler boards, with contact cleaner. Also check the supply voltage to the Tcon board. If that does not help then you're looking at a failing panel (ie. possibly dying Tcon board).

[andrew1]

Re: Samsung 305T bad picture

Try cleaning the LVDS cable and the FFC/FPC connectors on both the Tcon and Dscaler boards, with contact cleaner. Also check the supply voltage to the Tcon board. If that does not help then you're looking at a failing panel (ie. possibly dying Tcon board).

Thanks lexwalker. i'm going to do that.
I have a dell 24+1 DVI dual-link cable. There is no continuity on 24,25 pins. Not sure if that's ok and I don't have a spare cable . I'm starting to hate this monitor.

[andrew1]

Re: Samsung 305T bad picture

Thanks lexwalker. i'm going to do that.
I have a dell 24+1 DVI dual-link cable. There is no continuity on 24,25 pins. Not sure if that's ok and I don't have a spare cable . I'm starting to hate this monitor.

FFC/FPC connectors - OK
T-con voltage - OK

Now I have to check the DVI cable...and last the T-con board.

[andrew1]

Re: Samsung 305T bad picture

The transformer in the picture make a buzzing noise. Any ideas? (Check SMPS diagram).