My l.g.flatron l1915s screen has locked out, only showing half of screen.

SOURCE: cable advice...

There's an adapter cable required to go from the Mac's external monitor connector to a standard VGA plug. You can see what it looks like here at the Apple Store site. Once you have the adapter you can use a plain old monitor cable with VGA plugs at both ends to connect your Flatron.

Bud Martin

• 11361 Answers
• Posted on Apr 05, 2011

SOURCE: MY 19"LG FLATRON L1915S FLASHES

Lok for bad caps with domed tops as shown in my pictures here:
http://s807.photobucket.com/albums/yy352/budm/LG%201915S/

Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/albums/yy352/budm/
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.