Screen has gone blank. Is this common? Fixable?

Y Board is out. The boards costs about $150 and easy to install.

The tv was working fine until this morning, then the picture went out but the sound is still working.
TV is only 3 years old, no real electrical problems

One of your y driver almost go bad. For your future problem please visit my site athttp://billy-tech.blogspot.com/

This will be your Y SUSTAIN board on the left hand side when you take the back off.
Plenty available on ebay, Very easy fix

for repair,replacement of capacitor not performing well..due to worn

it is problem high voltage unite problem (EHT) change it then solve your problem

You might want to contact [email protected] we are taking action against HP for selling this model tv with known defects. Consumers should have protection against this type of abuse.

Contact us to join our group who is taking action for the same issue. [email protected]

did you ever get your tv repaired?

If the Video (Picture/Pix) is gone but you can hear the Audio (sound), then it could mean the YSUS PCB Assembly is gone/kaput/finish. Can replace the PCB, not repair the PCB due to timing circuitry involve. Cost maybe roughly $500 depending where you located. The PCB is located on the left hand side of your TV when you are facing the back (Back open). Might find 3-4 brown flex membrane connecting to the plasma panel. The PCB has a silver or black aluminum heatsink (big) on it.
Good Luck.