The W1907 goes blank when i turned the monitor off and then on

Off ur pc, and remove the vga cable connected to the system unit. On the system unit without the cable, after it runs for sometime. Off it from the power button and fix the vga cable. Then cold boot your pc.

so if you test the monitor on a known good PC it does what?
fails, then its the monitor
works then its the failing PC

all old HP monitors pre 2010 many had a sleep timer
so push the menu key on the monitor
then look for sleep timer and turn it off,
the monitor defaults to that mode, so dont push reset monitor or bam back to sleep mode it goes. so turn it off again.
all this is in the manual, lost yours, wana read it first?

read page 4.7 see that? (osd +advanced +) power saver OFF

https://www.manualslib.com/manual/418165/Hp-W1907-19-Lcd-Monitor.html?page=25#manual

if that fails to fix it (tested on 2 PC ) the PC1 is bad.
that be a whole other WALL OF TEXt, ask.

rwhite97, If your pc is working fine with substitute monitor, and w1907 lcd unit does same (black screen, or blanknblack screen) when connected to a "known good" pc, then you should visit and read some stuff at this 2005 blog. http://www.lesliewong.us/blog/2005/05/02/hp-pavilion-f1703-flat-panel-display-blackout-solution/ Then learn the flashlight test and what it means. Then go to YOUTUBE for video clips on lcd monitor disassembly and lcd monitor repair if you are into do-it-yourself repair. Remember this!!! Your w1907 unit uses the same basic design and operation principles that ALL brands of ccfl back-lit lcd monitors use. Good luck with the repair. Come back here and leave comment after doing your research/investigation and then rate this response. 12fixlouie

• when you turn on computer. after sometime your monitor goes to standby mode and monitor light colour will be orange it means problem with your computer not monitor.
• After this You Check your VGA Card.
• When you turn on computer is there any beep.
• After this also check your RAM.
• May be problem with your RAM.

Try this Technique .

You could have a faulty inverter board. The inverter supplies high voltage to the CCFL lamp/s, these lamps are mini fluro tubes approx 1,5mm dia. and the length of the screen.
Check the inverter output/inverter board and you maybe able to get parts from
www.lcdparts.net

I also have a hp w1907 monitor which also powered on for a second and then go blank with the power light still on.. it was out of warranty so I had no loss so I took it apart..I found one of the wires broken at one of the backlight bulbs { becarefull they are fragile and there is four of them, two on the top and two on the bottom... and the lcd screen is very fragile } I soldered the wire back on and it all work fine... just remember where all the screen parts go.

If the power light does not turn color and stay's green on startup, it is not a power problem. It is most likely the inverter. If the unit is in warranty, send it out ASAP. Contact HP customer care by email and have the issue logged in.
If in warranty, they will send you a box by FedX second day and have repaired.
This is a 19" monitor and will not be worth paying for repairs if not in warranty.

sounds like you have a backlight problem, the wires are known to burn off the ends of the bulbs of the back light..if you try to repair it yourself be careful the lcd screen and bulbs are frigile.. there is 4 bulbs two on the top and two on the bottom of the screen ,, keep every thing in order when taking apart

check inverter, memory, and powersupply.

my hp 6440 monitor w1907 gets black for second when i click mouse my e-mail add. [email protected]