How to fix a dell monitor dimension 2400 power button broken

The last guest left us hanging with, "easy fix" so, I ventured ahead to see what I could see by opening up my lcd, which was a puzzle in itself. After UNPLUGGING the monitor and removing the stand and the 4 obvious screws in the back, turn the monitor onto its back and placing your palms against one side of the monitor, and using your FINGER TIPS, gently pull back the plastic lip away from the LCD screen. Move along the lip, doing this a little bit at a time. You'll hear and feel it snap loose. Repeat on the remaining three sides. It may take a few rotations to free all the sides, doing a little at a time, so as not to put undo stress on the plastic that is not yet loose. The bottom lip from behind which lies the offending "on/off" button will not move as freely as the other sides because of the ribbon cord that attaches the circuit panel to the main body. So STOP pulling when you feel it become taught and carefully turn the monitor onto its face to complete the face's removal. Undo the cloth tape that secures the ribbon cable to the monitor. This will give you the necessary slack you need to do your dirty work. BTW, we're not disconnecting the ribbon cable from its connections- that would be bad - just remove that haphazardly placed piece of tape used to keep the thing snug and save it for when you're ready to close it back up. OKAY! There a four tiny screws that affix the green circuit board. You'll need a thin, jewelers type phillips head or a one from a synthe-sized tool set to remove these. Now, if your issue is like mine, you'll see when you again carefully remove the circuit board, that the on/off button has cracked off of the piece that holds it. This is why the button remained stuck in one positon when it was depressed. Re-align it so that it is uniform to the other buttons and place a few small strips of cut electrical tape to hold it in place to the end where it broke off. Crazy glue or the like won't give the button the flexability it needs and will probably just crack again. What the tape (I layered 3 strips) will do, once the circuit board is scewed back, is allow the button to return to position after it's pushed. I just did this and so far, after a dozen on/offs it's still working. Good luck. Go have a beer.

There is a small tab on the side of the power button which makes contact with the switch and probably has broken off, if you push any of the other buttons on the monitor and they snap back they are working properly, I do not know if Dell offers a replacement trim for your monitor or not (which has the buttons made into it), I have the same problem and trying to find out if they even offer a replacement. You can remove the trim by removing the 4 screws from behind the stand and then carefully removing the trim.

Hi, my best advice is dont try it.
Monitors are not easy to access and expensive to have repaired. A simple fix is to plug it direct into a switchable power outlet and just switch it on/off from there.
Regards mistyman

I have a flat screen Dell that I got from a friend. The power switch wouldn't work. I took it apart, which is easy, and found that the chip for the monitor controls, plus the on/off switch was broken off right at the end where the on switch is. Easy fix

I have a Dell Dimension 2400 computer. I purchased it used. The desktop on the monitor is blurry. How can you clear it up?

If your on and off button does not work just take off the trim. You will find that the plastic button just broke off. Take the button out, put the trim back on with out the button and now you just need a pin to push the on buttom. That's it.

Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} I ran across this post after fixing mine. I did the same as Delli Liama.
Except I put a small dab of silicone sealant on the hinge part of the button. Then put a small piece of thin plastic over it so if I had to take it apart again the silicone would not stick to the PC board. Remember not to cover the whole button or the light will not work. This was about eight months ago and all is well

Calvin

My 24" Dell monitor won't turn on .. just happened today. Paid a lot of money for this monitor and it looks like a 10 cent on/off button is the problem...and I don't feel comfortable opening it as described below. I'll call Dell about it and see what they say, but if they say buy a new one just for a broken button, you can bet I'll buy a different brand. Dell is going down and no wonder.

My problem was the power button broke in the off position. The best solution posted by Dellillama worked for me,with a slight modification. Rather than replace the power button, I simply left it out and used a pencil, eraser side, to push the real power button (which is on a small circuit board inside the plastic panel) on once I powered up the computer. And I leave it on rather than turn it on and off each time I use the computer. Rather than a gaping, green-lighted hole where the power button used to be, I covered it with black electrical tape...sort of a power button-ectomy.
The problem was that the power button was connected to the computer by three very thin plastic posts, and it had broken off of them. To say this is cheap construction is an understatement. The jokers at the technical help desk told me my only solution was to buy a new monitor. PS - My monitor was a 17 inch Dell 1704 FPTt.

Dell Demension 2400 monitor amber when i start computer the light turns green. Monitor screen starts to light up then goes dark.
on button still lit.