Mitsubishi VS-6071 60" Rear Projection TV Problem

Sounds like a Picture in Picture screen popping up, but if you do not have a signal from another tuner, it will be blank.

Try hitting the PIP button on your remote to see if it turns it off and on.
Plus go into the tv menu and find the PIP settings.

turn off close caption

Get the projection bulb checked if fine its something internal in your tv but i think you need new bulb

LAMP BULB IS BLOWN

Try resoldering the vertical output IC this is acommon problem with this model

bad capacitors

I would check for Bad solder joints around the flyback, and the verticle and horizontal yoke plugs for starters. Lower your volume and listen if you hear the high voltage come back up when your video comes back up. Let me know what you discover when you check the solder joints.

When I first turn the tv on the picture comes on for a few seconds then the screen goes to green but I still have perfect sound

Turn off the closed caption on the TV set. Someone has turned on that feature. Good Luck

I've seen a lot of vertical problems on those older mitsu's. If it has been intermitant some of those would get bad solder connections on the deflection yoke ( the transformer slid up on the neck of the picture tubes) ther are three and it could be any one. the thing about it is you have to slide it down and take it apart to get to the area that would get the bad connections. If you do not know what you are doing the setup afterwards could be a mess. This is the first thing that comes to mind but be warned there are many many possibilities for what you are describing. good luck