Mitsubishi WS-65908 After 20 min. Screen starts to blackout in top corners and then the entire screen becomes dark barely veiwable. Sometime it looks like the image is pulled inward producing a "V" shape. Only way to fix is to turn it off for a while.

Question edited for clarity.
Question moved from Cars and Trucks category.

See the fixes in the link

https://www.google.com/search?q=Mitsubishi+73835%2C+dark+shadow+across+the+entire+top+of+the+screen

..

A full service manual is available online---I will presume you tried to unplug it for a while and then power back to see if will reset itself.

This set has three hidden menus---one is the OPTION menu--in that menu with the Mitsubishi remote you can do a hard reset of the entire set= sets all back to factory except convergence adjustments which are stored in another area--cures all kinds of oddball issues.

I can give you a link to the manual and the page numbers for the OPTION menu.

Note: the other two hidden menus are Convergence and adjustment--do not go into adjustment menu as one wrong move and poof!

SD TECH

Might have to replace your screen, or it might be an issue with your graphics card.

This set has a convergence problem. You should only need to replace the IC. Part is STK393-110. It sits on the middle board behind the large heatsink. Use a heat transfer compound to ensure repair lasts. If you have no experience soldering (or unsoldering) please use a professional for the work. The traces are fragile and I have fixed many mistakes local DIYers have committed. Goodluck.

Regardless, my answer stands. It needs repair by a qualified technician. Rates vary by area. Make telephone inquires.

hello sorry but it sounds like the chip have gone again when you replace these chips you might have to change the resistors and the 2 capacitors as well

shaun

the crt's pcbs need to be adjusted, screen control is not balanced

the convergence IC's will most likely need to be replaced as well as a resistor or two

electech

Unfortunatly no there isnt. The tv bottom contains all the circuits, color guns, speakers. From where the bottom of the screen starts to the top is all part of the entire cabinet which is molded plastic. The top part contains a mirror and the screen you see as well as possibly a remote sensor. Short of sawing it in half and tossing it away you could take it apart but this would have to be done completely to gain you the most space and could be dangerous considering the high voltage transformer that the unit uses to power the color guns.

flyback