I have green and red "speckles" that are very distracting within the dark/black areas of the picture. I upgraded software with Philips. No help. Nearest Philips repair is almost an hour away. TV is a 50" Philips Ambilight Plasma. Bought it 2 years ago and thought I got a good deal. I wouldn't think it would only last 2 years.

I don't have a lot to go on. If this is an older rear projection, this usually means the face of the green picture tube is dark (the picture goes purple-red) or there is too much red tube(excessive drive). This is a technical adjustment as it is in an area containing hazardous voltages. Adjustments will be a stop gap as rear projection TVs are all past their usable life span (About 8 years + with moderate use)

poss 200v line caps from fbt 33mf-100mf 250v

realign power supply or replace the logic panel

I work as a Contractor for Vizio repairs, and I can tell you that the only solution is to replace the motherboard, or if under warranty REPLACE IT! I have had situations when I replace Motherboard and within 2-3 hours the TV is making either Green, Red, Or Blue pixels where dark areas are. If under warranty don't accept any thing but a full replacement.

power supply faulty

In some cases it is just a matter of making voltage adjustments on a plasma set to get rid of the spots you are seeing. I would look for a reputable technician in your area to see if this is the case. Good luck...

I have the same green dots that are seen especially when the bacground picture is dark or black. Mine does not seem to be changing when it warms up, and I also get it on my digital cable as well as on any DVD's I play. Please help with any advise. I think it was always there, but I assumed that a dgital cable upgrade would fix it - I should have known better...

Thanks a bunch in advance...

plz check if the internal cooling fan are in good working condition. avoid keeping magnetic elements..eg.speakers, very nearby.
hope this helps

Thanks for using Fixya

The speckling is caused by the CTRL board. The firmware needs to be updated. Unfortunately LG does not provide a media slot for downloaded upgrades. You must order an install the factory updated CTRL board located between the power and the Y sustain boards.

you will need a technician service the y sustain board. the tech will connect an oscilliscope to the board and readjust the voltages on this board. when these voltages are off, like yours, you will see speckles in dark or light backgrounds....