Unstable picture with horizontal warped line on top and bottom

If your TV looks 3D, warped, or distorted it likely has a convergenge problem.
If however it just looks dull, washed out, redish, greenish, or blueish or if it looks like objects on the screen have halos the fluid in the lens has soured.
You can search google for parts or you can get the parts with repair instructions from sites such as www.TvRepairKits.com

does the convergence align or move? how is the picture distorted? if the picture aligns but is just warped, use a jig or some string to have some straight lines to reference for your geometry and convergence. the monoscope signal is hard to find and mits had it on a vhs tape back in the day. it really just helped you get the horizontal and vertical size and get a round circle to fix the warp.. just try to make all the grid points about the same distance apart and make it an even grid.

OK this problem is caused by a failing electrolytic capacitor back in the power supply. It's job is to filter AC interfence from that voltage source. Locating the correct capacitor is something not for a do-it-yourselfer. A respectable tv shop experienced with Mitsubishi tv's can usually repair this problem in your home. Average repair cost would be between $200 and $300.

If the picture looks like a 3D then you have a convergence failure.
I would suggest to visually inspect the STK Ics for dry or crystallized solder joints.
IC8C01 - STK392-110
IC8C02 - STK392-110

Good Day, Delano1981;

It may cure the problem but I would suspect the 9 Volt source
CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 AND
IC2P01 PART # 270P466020 (9-VOLT REGULATOR). BOTH
ARE ON THE SIGNAL PCB.

This should resolve your TV"s condition.

Good Luck, big IRISH.

you can check the self diagnostic test by going to ctechnicians.com

White horizontal line (no vertical deflection)
Check / replace R548, R549
Sound but no picture except for a couple of horizontal colour lines
Replaced the frame chip TDA8356, set now ok
Severe vertical jitter on picture, horizontal sides of picture ragged
Replacing the TDA4950 cured the fault
White line down centre of screen (top to bottom}
Replace C805

Just got this fixed. The problem is the 21 (yes, 21) main capacitors. It'll only get worse if they aren't replaced. The whole screen'll start jumping, multi-hour "warm up" times until you get a clear picture, maybe not even then... it isn't pretty. Just nip it in the bud now, and more power to you if you tackle it yourself. A good repair shop ought to be able to do this for under $400 if you can't.

Not to me, but it also depends on if you could do this yourself or not. And the area you are in sometimes is responsible for the cost being high.

CHECK C2P08 100 UFD 16 V OFF PIN 3 OF IC2P03 (3.2 VOLT REGULATOR) ON THE SIGNAL PCB. HOPE THIS HELPS!