Green band 18 month old Mitsubishi LT-52133 has 1.5 inch wide vertical green band on left edge of screen. Band goes from top to bottom of screen. More pronounced in HD mode - edge of green band changes as the color of picture programming cross the line. Sometimes the color at the edge of the green band turns bright red. Any help would be appreciated. Thanks, Chris

Good luck with this. If it is under warranty, Sharp will take forever to do anything about it. I had this issue and Sharp wanted pictures of the problem, Pictures of the serial and model number and the receipt. I sent it to them 6 months ago and never heard anything back. If it is not under warranty, this is a major repair and it may cost more than a new television.

if that 2 band according to you from top to bottom,it has a defective vertical stage.if this two band appears one on top and one at the bottom,it`s on vertical stage.leaky capacitors,resistance changed or resistor devalued ang ic`s, are too weak to amplify a signal to make the screen complete....

if a white band is seen---go to a blank or unused video input and examine the screen---both sides---if it is seen on both (even if more so on one side) you may have burned the screen by using the 4x3 format.

If this it is permanent damage.

This could be a defective T-Con board or Digital board. Have it looked at by a professional for exact solution.

You would better served replacing monitor you can buy one for about $100-$120 dell if you lie has one for $99

YOU MAY HAVE A DEFECTIVE Y DRIVER BOARD OR A RIBBON CABLE THAT HAS COME DISCONNECTED. THIS NOT USUALLY THE PANEL SINCE THE PANEL DOES TURN ON. TAKE IT TO AN AUTHORIZED SERVICER.

Similar problem with an eleven and a half month old LT-40148. Approx. 1 inch vertical banding line on left side of screen on all inputs. After about two weeks, same problem on the right side of the screen.

Fortunately this occurred two weeks prior to the one year warranty expiring.

Called Mits customer service and they referred me to an authorized service center who I happened to have dealt with before.

They picked up the set. The front panel (LCD screen ) had to be replaced. Set was gone for two weeks as parts were not in stock. There was no charge. I hope this screen last more than a year.

I would suggest to exchange if you've noticed those lines. Do not wait for too long.
Good Luck

the reflecting mirror is likely loose and falling down inside the light reflecting tube. you should have seen the band getting darker and larger,
the small mirror is in front of the lamp and bends the light,
remove the lamp and look down the tube (light path)

if unit is still under warranty, utilize it. otherwise your y-sus bd is failing. the problem will get worse. hope this helps.