IT APPEARS VERTICAL LINES (ABOUT 10) ON SCREEN AFTER 2 HOURS OF PROJECTION. WHAT IS THE PROBLEM?

change the 10 or so surface mounted bad filter caps in the Hyper module this set uses--the board is no longer available--it can be sent out for rebuild (not toshiba) but that is rather costly (200+)

Hi,

Did you check to see if the cables are fine? Try another set if possible.

It appears like there is a bad capacitor in the horizontal circuit. Try to put a fan near the ventilation trap, just for a test.
the part cost almost nothing but having someone to your house is expensive.
Your decision.

It means the optical block is going bad. Contact Sony support. They will sometimes warranty these even after the 1yr warrany has expired. Have your model and serial numbers handy.

Vertical magenta lines could be a symptom of a loose connection to the optical assembly,or a source of interference. Try resetting the TV first - unplug from wall socket for about 2 hours, replug, and see if it works.

Also check the cables/connections from your cable box, etc and see if the issue can be resolved by manipulating the wires. Could be a loose connection..

We also have vertical lines with our JVC 62"... turning it off and letting it cool down is the only solution. For us, we know it's a problem with heat. We simply are wits end on fixing it. added two additional fans, a exterior fan to blow heat away from the back of the tv, pulled everything else away, etc.... Anyway, goodluck.

Sounds like Light engine sizzle noise makes me think color wheel.

replace the dg board

it's called retrace lines ,your screens are set to high or focus block assy which has the screen adjustments on it also is faulty

Possible bad solder connections in convergence circuit or vertical deflection circuit. This happens in alot of equipment. After warm up, expansion of joint pulls connections loose. Recommend not running like this, could cause component failure.