Same problem i have a planar 20" monitor and it worked fine for months, then one day i turned of my computer then rebooted it and the monitor just flashes on for a sec then goes black but the light stays green.

Try Another Monitor---If OK--Problem Is With Your Monitor---If Does The Same Thing--Problem With Computer Video.

Navigate to the control panel, click Start then click control panel.

Double click power options.

On the Power Schemes tab ensure that the fields are set to NEVER.

You can however set the monitor to turn off after 20min which I do recommend, to make your computer more energy efficient.

damnor01

I have a similar problem on my Planar PD470; power supply failed after about a year and a half. I heard that their HDTV power supplies had a higher than normal failure rate. I have someone working with the company to resolve, but I'm not optimistic... Bah Humbug. How long have you had your set?

reboot your system again..and for more info contact http://tinyurl.com/m7ghqz

iv come across this before sometimes people can see that the monitor is actually working but the light has gone out id say bad capacitors that are breaking down. if you want to DIY it take it apart and find the light pcb usually built on the power supply pcb and look for bulging or swolen capacitors this happens alot in my opinion. if you can DIY it get the same caps or same value but better ones. I might be wrong but worth a look

bad back light

Hi...there
Sure, you can fixed by replaced the backlight inverter or repaired it.

A Chip on the monitor circut board must be reflashed. You need to send back to Planar, do an rma. They were very responive to me, sent me a 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.