I have a 35in Toshiba tv and it come on but have a stright line in the middle of tv.

You have a faulty screen.. usually the cost to replace is more than what it is worth.

The vertical sweep output is absent. Check its vertical output section circuit for the fault. Check all the solder terminals of that section, and resolder them by applying a little more solder. Take special care to the solder terminals of the vertical output IC. If these do not help you, check and replace the vertical output IC.

There is likely something wrong with the tube itself. It could be a short that is only there when the line warms up (10 seconds is plenty considering the amount of power that runs through it) or the CRT has a crack.
If you want to continue with this type of TV there are quite a few reliable TV repair companies in almost every mid to large town around the US. If you don't want to invest in repairing a 15 year old TV (not a bad life span for electronics by the way) then you could very likely find a 32"-37" LCD TV at your local electronic store that is reasonably priced.

This problems is not the causes by a human or an objects by hitting the LCD screen panel wright?If,yes this problems can't be repair,the LCD screen panel it dead.The tv now,only can be used as spare parts,not worth as a whole tv anymore.If tv it develope all these colors lines by it self?Yes,this tv can be repair,the board call the T-Con decoders board is the causes and the problems.This T-Con decoders board sit right at the middle botton of the LCD screen panel.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-Con decoders board for the replacement.

this problem is caused by a faulty ir of cap's . First is c408 on the board it is a 100uf @ 35v i replaced with same uf and @ 50v , Second is a 2.2uf @250v and is c410 on the board replace both and your off to the races.

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Time for a new set

Hello!

Here is a link to the manual. Hopefully, it will help!
https://manualsbrain.com/en/manuals/1385674/?page=54

DLP TVs work projecting light throught a tube covered with mirrors, called the light tunnel.

The gray shadow it is something in the middle of the light tunnel, probably a mirror that has gone out of place when you moved the TV.

try this site

That problem is in the vertical section. Check for leaky or dry capacitor(s). Check the capacitor(s) with values less than 50uF.
Good Luck.