Hp w1907v monitor switches off after being switched on

update drivers for that specific monitor

Well the monitor obviously works, so I see no reason to open the case on the monitor especially because there are no user serviceable parts within the case. my sugestion is to try the monitor on another PC if that yeilds the same results then I am wrong and the problem lies with the monitor. I believe the are two types of connections for this monitor VGA and DVI
Next step is to try the one that you have not tried yet if that fixes it then the problem lies in the output conection on the back of PC the input connection on bottom of monitor or the cable itself. If there isn't a second connection like I think then the next option would be to try another monitor, which if you do not have available can be achieved by using most new flat screen TV's If you have a TV With the same conection Just move the PC or TV close enough to try, Use your remote to change TV input to PC then turn TV off connect cable turn TV on and start up your PC if this works you will need to have your monitor repaired or replaced.

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Good Luck!!!

If the monitor works when connected to another pc then it's good and the defect is in your present pc - its video card is defective and it will have to be replaced.

Thr power switch is a tactile momnetary contact switch setup, when the button is pushed, the contact is closed and open when released. Are you sure the switch is bad? not the circuits inside?
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

your hp monitor has an electronic component problem inside, probably some busted capacitors or ccfl lamps that failed to light...best is to bring the unit to a qualified LCD repair center near you..

Try swapping the switches over, your second switch box may be faulty.

You could also check the ips to make sure u have no conflicts.

post back what you find. thanks

Try cleaning your RAM it should be the issue mostly 80%

You can check by rremoving the VGA cable if the system shows no signal mostly monitor should be fine

your monitor could possibly have a backlight problem.. the wires to the lights are known to come off the lights in the screen.. if you try to check it your self be careful the lcd screen and lights are very frigile, nad can brake easly..

elow

try to resolder all lost contact on flyback transformer..............................