Giant GL-1556 manual or schematic needed

[berniedd]

Hi guys. I'm trying to fix a 4-yr old 14-inch computer monitor for our clinic. It's a Giant brand, model GL-1556. It displays only a green LED light below the screen when I plug it in, but won't turn on. I need a manual or at least a schematic for it but can't get anything off the web. Anybody out there who can point me to the right direction or links? Appreciate any help you can give.

[shin]

check the horizontal drive transistor. Also check the MOSFET TRANSISTOR on the power supply section, which is supplying the high voltage to flyback transformer.