I have a Panasonic PT-50LC14 50 inch Rear Projection TV. The screen has gone blue and I can't get a picture. However I can get a picture in a picture, so it's not the lamp. Why can't I get a picture on the full screen?

tv looks fine then I get just a line in middle and nothing else

The EEPROM needs to be reprogrammed. You should contact Panasonic customer care as they may fix this at no charge to you.

your convergence ic is going bad. remove front and adjust the level of blue.

56 inch panasonic tv has blue yellow lines running up and down on right side

You need to adjust screen drives on Red Green Blue tubes ,does all 3 of them light up? Focus/screen control box is in front of TV behind front panel Turn color off then adjust all 3 tubes to where you have a black and white looking picture, now turn color back on.

replace the convergence amp ICs both of them. They cost about 15.00 each

Yes,try cleaning your mirror inside of tv they do get real dirty, also clean dirt off of tube lenses there are 3 of them red,green,blue. these are your picture tubes. Thank You for using FixYa and Have a nice Day.

Have you checked the lamps. Rear projection TV's have bright lamps, that can burn out. If you have had this TV for a while, that is the first thing I would check. If you still have to manual, it should tell you how to check the lamps and which ones you need to order.

These should be special lamps only Panasonic sells. Therefore they might cost a few bills.

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

It is not a bulb. It is a picture tube. If there are thin blue lines across the entire screen, not just the edges, and the picture itself looks too blue, it means that the blue picture tube is being driven too hard. This could be because the blue screen voltage is too high, the boost voltage on the blue picture tube is too low, or the video output is leaky or shorted. If the picture has what looks like blue arcs and double images on one or more sides of the picture, it means that one of your convergence IC's has burned out and needs to be replaced. These are things that should be tested and serviced by a qualified tech, so allow an experienced tech to handle it for you.