Sony SDM - Recent Questions, Troubleshooting & Support

It can be the power supply/inverter board caps problem, but this 17" and 19" model are known for bad lamp assembly as you can see in my albums here: http://s807.photobucket.com/albums/yy352/budm/SONY/Sony%20SDM-HS73/

I will be just about impossible to get the board or lamp replace, cost too much.

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.

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Either a loose/bad power cable or the backlight is failing.

Check for a loose power cord on the back of the monitor (quite common).

use marker erase fluid or any quality cleaner product just remember that it is a LCD screen so don't press hard when removing the mark

Maybe update your display drivers. PC appears to be slow.
Make sure you don't have a bunch of apps that auto start.
Do you hibenate your PC?
Same issue if you connect monitor to another PC?
If issue follows you to a different PC it says monitor. If it doesn't it says the first PC (that monitor is currently connected to) had a cpu/memory or a driver issue.

Good luck

Most likely you should be on input 1. Try changing that and it should work

It can likely be repaired, but will probably cost more to repair it, than replace it, since even 24" LCD monitors cost around $125.

Very doubtful. Either you have a defective or corrupt display driver, or possibly a malware infection. Is that a laptop or notebook computer? If so, is there a VGA port for an external monitor? If do, try using a known good external monitor.

Although you didn't list your operating system, I'm assuming it is Windows and offering a suggestion to clear up the issue based on that OS. Go to settings, and then to control panel. Once in control panel look for "power settings" and click on "custom". This will allow you to turn off all power saving modes by clicking "never" on when the screen is turned off or goes to sleep. If the issue is caused by the power saving mode, this will end the problem.

go to control panel and change the desktop background color