Question about Dell UltraSharp 2407WFP 24" LCD Monitor

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I can Fix It if I Can Find The inverter.

Where can i find an inverter for a Dell UltraSharp 2407WFp monitor

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  • David Base May 28, 2009

    I don't need the lamp. I need the inverter board

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Cajun is an idiot. a BACKLIGHT is a pencil sized tube that provides light for the LCD. An inverter will take a small voltage and turn it into a large voltage, with a proportional decrese in current. Not nearly the same thing.

Go to LCDrepairs.com and buy the parts you need.

Posted on Apr 16, 2010

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Do a search on Ebay for 'TBD368LR' there are some low cost spares there.

To get the case open follow the instructions here:
http://www.youtube.com/watch?v=RXAQxwCTuuI&feature=related

This also explains how to fix the dodgy power button.

Posted on Oct 10, 2010

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I have the same problem with my Dell 2407wfp monitor. Screen blacks out at high resolution settings and requires unplugging the power cord and and back in to only have it re-occur. I found the inverter board at www.lcdrepair.com P/N TBD368LR 5DL2K01001 Rev.A00 Price $59.99

Another site to check out if you want your monitor repaired for you is www.monitordepotusa.com They will bench test your monitor and repair it for $149.00 excluding shipping.

Hope this helps.

Posted on Aug 31, 2009

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The inverter is a pencil size tube between the front and back panels of your monitor...there is one on each side as it provides the backlight. good luck..pls rate this solution

Posted on May 28, 2009

  • ME Apr 04, 2014

    Dont post if you dont know what you are talking about, this is plain wrong. The inverter is a circuit board that generates high voltage to power the backlight lamps.

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Posted on Jan 02, 2017

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1 Answer

I have a 2407WFP monitor. The power turns on but there is no display even when I push the menu button.


You need to take it apart and check the caps in the power supply and fuses on the backlights inverter board, see my pictures here:
http://s807.photobucket.com/albums/yy352/budm/DELL/Dell%202408WFP%20Rev%20A02/#!cpZZ1QQtppZZ20

Read my guide to understand more:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Sep 02, 2011 | Dell UltraSharp 2407WFP 24" LCD Monitor

1 Answer

The power switch on my monitor won't turn it off.how can I fix it.


its seems the switch is broken in this case youl have to order a new one and install it another way we fix this problem when parts are not available is to have a power switch installed on the main power cord just like the old lamps

Oct 14, 2010 | Dell UltraSharp 2407WFP 24" LCD Monitor

2 Answers

No longer bright


you might have a busted ccfl lamps or defective inverter circuit, bring the unit to a shop for servicing...

May 07, 2010 | Dell UltraSharp 2407WFP 24" LCD Monitor

1 Answer

I think its the power supply


The problem can be in 3 places: bad caps in the power supply, shorts circuit in the back light inverter, or bad lamps. You need to open it up and inspect the board for bad caps or burnt parts, take some voltage measurement, you should have 12vdc for the inverter circuits. See example of monitors with bad caps: http://s807.photobucket.com/home/budm/allalbums

Jan 20, 2010 | Dell UltraSharp 2407WFP 24" LCD Monitor

2 Answers

The on and off button won pop back out so that i can push it in to turn the monitor off and on.


Call dell with the 20 digit serial no at the back,if it is in warranty you will get a replacement monitor for this issue i had the same problem mine was replaced
Normally Monitor has 3 year warranty for parts

Dec 30, 2009 | Dell UltraSharp 2407WFP 24" LCD Monitor

1 Answer

Hi there! Dell 2407WFP - Front lower right green LEDs light, turn on and off, but screen is dark. I cannot even see a picture searching with a flashlight in the dark. So i believe it is not only the...


Probably the backlight then. If you take a look on eBay you can probably get one for this screen and do the job yourself, they're relatively inexpensive.

Dec 12, 2009 | Dell UltraSharp 2407WFP 24" LCD Monitor

2 Answers

Hi Team, I have Dell Ultra Sharp Monitor which started to overheat. Need advice on how to fix. Thank you,


If you are not an electronics tech It would be remiss to advise you to interfere with a high tension device like a monitor. take it to where it can be serviced and keep your life. Only experienced people should open up a monitor and poke around 22000 volts is involved here and if its overheating the wiring on th ecoilod ids breaking doen or has broken down.

Aug 01, 2009 | Dell UltraSharp 2407WFP 24" LCD Monitor

1 Answer

Dell Ultrasharp 2407wfp Going dark?


I have seen this happen, and it gets to the point where the overheating will cause the backlight to entirely **** out, and then you've got a pretty nice paper weight. I would definately give Dell a call on this one to ensure it is under warranty. If this is the case they should easily be able to identify it as an issue with the backlight system and get you a replacement rather quickly.
If this part is not under warranty, well you can part-piece fix it, but it is a pain.

May 04, 2009 | Dell UltraSharp 2407WFP 24" LCD Monitor

1 Answer

Can I watch TV (Dish TV) on my Dell Ultrasharp 2407WFP ?


No. Monitors are different from TV's and are not able to connect directly to a Dish receiver. The frequencies the monitor uses are different that a TV. You can get video from a PC into a TV but not vice versa. You can use the second UHF output from the VIP 722 to connect an older TV without a digital tuner in it to that port. It will come out on channel 73 and will not be Hi def. You'll need to use the remote with the #2 on it to operate the receiver

May 12, 2017 | Dell UltraSharp 2407WFP 24" LCD Monitor

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