How do I fix vertical lines on from my projector?

If this projector is connected by Component Video (3 or 5 wires) instead of HDMI, the most common color related problems are caused by having one of the 3 video cables (Red, Blue or Green) with a bad connector. If everyone is a green smurf the problem is with the red cable. If everyone is a red smurf the problem is the blue cable. If the green was bad you wouldn't see anything.
Another possibility is if the green is plugged into the yellow jack instead of green jack on the projector, you could see what you are describing.
If everything checks out, take the projector to a repair facility.
If you are connected by an HDMI cable, (combined with the fact you mentioned vertical lines not horizontal) then take the projector to a repair facility.
All of this assumes that you don't just have a bad Cable Box or Blu-ray player or Home Theater Receiver. (The source)

the LCD is not work well
you can do follow these:
1,reconnect the LCD cable (It is connected to the motherboard and LCD screen)
2,if the vertical line is still there,it means that the LCD is bad ,you need a new LCD

the hard drive crashed and only reads some of the progams so it is time to replace the hard drive

Hello,

All Plasma and LCD TV have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times resetting the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They an sometimes be fixed, but it is a pain. An yes I have done it, but the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken . Good luck in solving the problem....

There is three LCD in the projector red, green and blue. If green LCD make any fault mean line or dot or dots then screen show these line or dot in purple color:
If line is very straight and sharp edges then green LCD is faulty and need to be replaced.
If line is not straight and faded edges then some thing in LCD block so your projector need service

first try to reset the settings to factory default. if that doesn't work, you have a main board issue.

to adjust those mirrors, you need to power down, unplug, remove the top, remove the wires from the main board, remove the main board, adjust one mirror, reinstall everything, power up, see whatever difference it made, power down and repeat until it's fixed. it's quite a chore. if that's not the problem, you'll need to replace the optical engine (which isn't cheap) because they don't sell individual parts.

What is the model number it sounds like pixel problems or board problems. For more info ctechnicians.com

When the vertical lines are displaying, open the projectors menu (by pushing the "menu" button). If the vertical lines affect the menu, it's a problem with the controller board and will need to be repaired. If the menu is NOT affected, it's probably a loose or damaged cable (Cable part# SP-DVI-A-R).

Hi guys

This is a common Mainboard problem on Projectors , unfortunately the Board will either need repairing or replacing.

No shortcutts on this one !