I've got a Planar PL2010M monitor that is brain-dead-
1. Try a different DVI cable. 2. Check the monitor's settings and make sure it is set to the correct resolution. 3. Try a different computer or laptop to see if the issue is with the computer or the monitor. 4. Try a different DVI port on the computer. 5. Try a different monitor. 6. Check the video card settings and make sure it is set to the correct resolution. 7. Try a different video card
Backlight replacement
Are you sure it's the backlight? Many Planar LCD monitors have issues with the capacitors on their power supply boards. The symptoms include a power light and no picture, or just a flash of a picture when powering up and then nothing.
The fix for some of these problems is about $8 on new capacitors (Plus shipping).
On the PL2010M monitors you need the following parts. I've added digikey part numbers to make life easier:
P10271-ND 220UF 25V Capacitor (3/4 depending on PS)
P10275-ND 470UF 25V Capacitor (1)
P10221-ND 470UF 10V Capacitor (4)
If you're not comfortable with soldering and de-soldering electronics, take it to a local technitian for the work and give them the parts list above. That should work if the failure looks like I described. I've fixed several of these monitors so far. All the problems were related to the power supplies. Same with the Planar PL1700 LCD monitors.
Lock out my monitor px2710mw
Here is the user's guide for your monitor:
(from Planar's website)
http://www.planar.com/media/222919/mn-planar-px2710mw.pdf
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