Rolling horizontal (colored) lines instead of picture; audio OK

wwwproscanvideo.com

The convergence board is shot you going to need a new board as the horizontal ic's have given out. Reapiring this would take expertise and cost you more then its worth then just get a new convergence board. Thanks and please do rate.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

That problem is caused by failed Capacitors on the signal and FMT power boards. which is a very common problem for mitsubishi TVs. There are repair kits available for the V26 dlp which contain the capacitors and instructions on how to do the repair. Heres a link check under the repair kits category.
http://servicemanuals.vstore.ca/

Yes, the lamp will gradually get darker as it nears it's end. The rolling lines sounds more like the set is on a local channel for the cable hook up. If your local area has a channel 3 or 4 live terestrial broadcast simply tune the cable box output to the other one, the same for the tv.
If this is cable/local broadcast issue it will go away in Febuary when the NTSC broadcast ends.

ok
this is called viedo noise
you will need to replace capisitor Cc10 its Value is 1000uf @ 16v the cap is a filter On Sw +9v Line , on pin 20 of Ic01, ( or corma Jungle IC)

It ended up being the Verizon Fios box. We recycled it and the picture stopped rolling. Thank you for being here to help. If I have any future questions, I'll definitely use your site.

It is most likely a problem with the tuner, I would contact the place you purchased it or your nearest repair shop.

Replace all electrolitic capacitors on the Proscan pcb.

Uneven colors with multicolored lines in the center of the picture and/or flashing, C9A37 and C9A38 both 3300 UFD 10 V part # 181P732040 on the Power PCB (part # 930B921002)

is this a horizontal black line going up or down? if yes, this sympton is caused by a trouble in the integrated circuit or in the vertical oscillator circuit. this symptons has 2 variations. one is the intermittent rolling of the picture. this referred to as the "loose vertical hold" the other variations is the continuous upward or downward rolling of the picture