Question about HP w1907 LCD Monitor

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I recently bought a Hp Lcd w1907 Monitor off craigslist, the screen worked fine for about an hour then went black, button stays blue. Now every time I power on the monitor it stays lit for 3 seconds makes a sizzling sound as if it is shorted then goes black. If you shine a light on the screen when it goes black it still shows picture. What is the problem here and how can I fix it, I opened up the monitor to see if there was any damage to the boards but I could not figure out how to disconnect the blue + pink connectors attached to the power-board. Example here for connectors: ^^ Step #9, part 2.

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Hi the cause is screen back light not working properly. you need to remove the back cover of the monitor to access the internal part of the monitor. then look for the connector of the cold cathode fluorescent tube back light going to the power inverter board of the back light you will noticed a dry joints which cause a loose connection that is why you hear a sound that cause of spark. you need to re soldered the connector or replaced if totally burned.

Posted on Nov 08, 2012


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Posted on Jan 02, 2017

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SOURCE: HP vs 19b LCD monitor power

You need to start by looking at the power supply section first for bad caps, the problem can also be in the inverter or bad lamps. does it do the same when it is hooked up to other PC?
see the one I just fixed with bad lamp problem:

Posted on Feb 01, 2010

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SOURCE: Remove bezel on HP w1907 LCD monitor

This is the way I each all my techs to open and repair a monitor. First things first. You’ll need a Phillips screwdriver, rubber gloves, a fiberglass diddle stick(Radio Shack)aluminum tape, small cups and colored markers. Do this operation on a large flat surface. I suggest using an anti-static mat or large piece of wood underneath so as not to scratch the table or counter surface. First take your diddle stick and sharpen one end to look like a flat blade screwdriver. DON NOT USE a metal screw driver (metal causes scratches.) Now turn off the monitor, unplug all the cables and remove all the accessories i.e. stand, speakers. Take out all the screws from the back (these are different sizes so put them in different cups and mark their locations using a colored marker). Once all the screws are removed take your diddle stick. Insert the stick under the front edge of the screen. Sometimes you can use a finger to start lifting the plastic bezel. Under the plastic bezel you’ll see the metal frame of the screen. The diddle stick needs to ride on top of that metal and under the plastic. Once there you can move the stick up and down on each side. This will release the internal plastic catches and soon the bezel will pop off. The control panel my be screwed into this so be careful. At this point you can lift out the screen. There will be metal shield(s) covering the two circuit boards. A number of screws will release the boards. You’ll need to remove the nut screws from the video connector also. The power supply board is probably soldered on to the frame but that should be easy. That’s it. Do your thing and be careful putting it back together. The Golden Rule of service work – NO EXTRA PARTS. Good luck.

Posted on Mar 03, 2010

Testimonial: "thanks... don't have a diddle stick so used a thin putty knife with cloth over the screen."

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My screen on hp 1907 went blank, my 13 yr old nephew started punching all the buttons on the monitor over and over and hitting the on and off button. Now I am having a problem with my screen going black...

I think it's pretty clear he messed something up. Try checking the VGA cable (the blue one) that's hooked up to both you computer and monitor. Check if any pins are bent or broken. If not, make sure they're securely plugged in and try booting up. If it still doesn't work, then I'm afraid he may have knocked some connection in the motherboard out of whack. I hope it's just a slight VGA problem. Hope this helps!

Apr 16, 2011 | HP w1907 LCD Monitor

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The power button flashes between blue and yellow. The monitor screen stays black. I have the exact same monitor and switched it on to my other computer, and the computers are both working fine.

perrycdoq, Did you do flashlight test? Is your monitor also "blank"? Did you visit this old net blog? http:/// Do some reading there then come back and tell me if you think same thing might be wrong with your unit. Will you do the troubleshooting or contract out the work to qualified electronics technician to fix units "switch-mode-power-supply / inverter ballast circuit? 12fixlouie

Oct 03, 2010 | HP w1907 LCD Monitor

1 Answer

Monitor will come on, monitor status box will come on and then screen goes blank. How can I fix this?

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. 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

Jul 16, 2010 | HP w1907 LCD Monitor

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My HP W1907 monitor needs a driver update. Told access is denied

yes the monitor bad , which means your lcd lamps gone ....

May 09, 2010 | HP w1907 LCD Monitor

1 Answer

My HP w1907 monitor blacks out after turning it on. It only stays on for one second. What is wrong?

I've seen something similar in some Iiyama screens recently in the office, it was caused by failing capacitors in the power supply. I managed to replace these with a bit of soldering iron work and the help of this site

Be careful if you do choose to take a look inside your screen though, there are some nasty voltages in there.

Nov 25, 2009 | HP w1907 LCD Monitor

1 Answer

My hp w1907 19' monitor goes black light stays green

it sounds as if you may have a backlight problem..i have two of them that the wire going to the backlight had burnt off at the bulb..I had to take the lcd screen apart to solder the wire back on the blub.. be carefull the lcd screen and bulb are frigile... ther is 4 lights two on the top and two on the bottom..good luck

Nov 10, 2009 | HP w1907 LCD Monitor

1 Answer

Monitor goes black

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.

Oct 24, 2009 | HP w1907 LCD Monitor

1 Answer

The Volume Screen on my monitor keeps popping up

Try putting pressure on the monitor near the buttons. There might be a short or some type of stress pressing the buttons.

Mar 04, 2009 | HP w1907 LCD Monitor

1 Answer

Volume pop up in the middle of my screen

no photos of said window presented? i cant see them?
must be OSD? the monitor brain on screen display (menu)?
even with the DVI cable pulled?
only a monitor stated, w1907, no PC
some monitors have button lock
read the manual ?oops HP deleted it...
it tells you to push the menu key on the monitor for 10 seconds
and it unlocks. (4 buttons right side left button is MENU)
that power deal sounds super bad, like the power supply is bad.
if the monitor fails by its self not plugged it to a PC
then the monitors is bad.
try a reset on it? ( power off for 1hr, or off then plug in with power button held? or power on with menu held (wild guesses but common practice)
ok found your manual page 4-8 shows menu page advanced
list line in list factory reset.
but if the keys are dead, and power lamp failing
the power supply is no good or worse. worse is always possible.
and expensive

ever see the support page, read the guides

its over 10 years old now. 2007?
walmart has larger one for $50
cheaper that parts or repair this.... vastly

Jul 27, 2017 | HP w1907 LCD Monitor

2 Answers

Monitor is black. Press power on monitor/screen shows for 1 sec

You will need a new monitor screen. I have had two screens go on me recently and what you describes normally happens

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