Blue streaks and faint blue blotches on screen

SET uses a optical light engine--lamp which is quite hot shines into the engine---blue is first to get the light and heat and is usually first area in the lens and baffles to get damaged(loss of blue leaves red and green which equal a yellow screen.

You have a damaged light engine.

The problem it's not on the Lamp, the problem is the color wheel, you need replace it and the TV will work like new again. I hope this help you :D

You have a bad light engine call Sony and see if it might be on their extended warranty list.

Hello :
I suggest u retrace you the steps u took to replace your lamp make sure no foriegn objects got on the prism where the light shines throung the optics engine, if you remove the lamp compartment througly. If you had a perfect picture prior to replacing the lamp, then retracing your steps you might find something that does not belone. One final note: Did you purchase the right lamp 120watts anything higher than this wattage could damage your optics engine. I suggest never vacuuming the compartment because particals fly around from the suction and could get on the glass of the color wheel asembly.

coversion amp ic have died you need to call al tech to replace them parts are cheap but labor is going to get ya

blue tube is going out

Assuming that an alignment tool is not your problem, if the blue spots are regularly arranged in rows and
columns, I would have to say that the blue filter of your three tube (red blue green) array needs service.

It sounds like your light engine is on it way out. I would have this verified by a service center. Very costly to replace. They will probably try a new lamp first.

go to avs forums - you may have blown capacitors

Sounds like a source problem. What happens when you play
a DVD or some other source??
Need more info? Always give Model # and age----T.