My monitor is on. it is a samgung monitor. all i

Most likely culprit is a defect in the the power module (inside the monitor). Most failures are because of bad electrolytic capacitors.

Do a search using Google and type into the box (the Great Capacitor Plague). Read all about it.

yes it does make a difference if it not connected but a box should pop up and say somthing like no video input or somthing along those lines
or just a box red blue and yellow for a second or 2 and then go black.
hope this helps and answers your question?

plain white screen means loose conecting the lvds cable to panel. reconect it.
if its goes off then check power board +5v or +14v filter capicitor.

Hello,

A flashing power light like that indicated a blown power supply. Your monitor should be under warranty with Samsung. Check the mfg date on the back sticker, if it is less than 3 years then contact Samsung. If it is out of warranty then contact us at [email protected] and we can get you the info you need to do the repair yourself.

Buddy
Corporate Computer
www.ccl-la.com

satservice, What happens AFTER 15 min of FLASHING?? What did unit do or act like 3-4 weeks ago? Is the screen both BLACK and BLANK? or is screen just black and you can SEE win-desktop if you shine a bright flashlight 1 inch from screen at differnt angles? Can you use your Samsung warranty? Will monitor do same when connected to different KNOWN GOOD prebooted to desktop PC? Are you refering to the "power ON" indicator light on front BEZEL as the FLASHING thing? Need more info, but I suspect "shutdown of units "switch-mode-power-supply" due to detection of FAULT CONDITION having been detected with other circuit or with itself. Read some of my other responses in my fixya profile that deal with BLACK SCREEN repair. If this response useful, rate on fixya. 12fixlouie

the internal power supply is bad.

Look for bad caps in the power supply: http://s807.photobucket.com/albums/yy352/budm/Samsung%20205BW/

no signal.. check cables

Yes, It sounds like the backlight inverter circuit is shutting down. No inverter power, no backlight. On some monitors the inverter circuit will shot circuit the power power supply which makes the power light flash on some it just kills the backlight. You can usually check with a flashlight. Hold the flashlight pointed at the screen and see if you can see any of the icons or background picture. If you can then it is the backlight circuit or backlight tubes, usually the circuit.

Buddy

Please try to connect your monitor to another PC, if still the problem exist, then probably an internal electronic part/s is cold soldered / defective, which I suggest to bring the unit to an authorized service center to fix the problem. regards