LCD Repair

[dimitris1989]

Hello all,

I have a Samsung T200 LCD monitor, and some time ago it started showing a white screen. At first it would recover after a few power offs and ons but now it's always white.

I opened it up, checked for bad capacitors on the power board but everything is fine. Is there anything else I can check or it's beyond repair?

Thank you

[wraper]

Try to reseat LCD cable connectors, move the cable, press with finger BGA chips and power on while holding.

[dimitris1989]

Try to reseat LCD cable connectors, move the cable, press with finger BGA chips and power on while holding.

Thank you for your reply
I tried it, but it didn't work

[AKM]

TN panels usually work in normally white mode (it forms the picture by blocking unwanted colors from the backlight), so when you have a white screen on a monitor with TN panel, it is the panel which doesn`t work. Try checking the T-Con board for the voltages it needs to work(usually 5V); if there is a SMD fuse on the T-Con board, check it too; if the fuse is blown, check for shorted components before replacing it with an equivalent fuse(take care to notice components in parallel, especially the bypass capacitors).