Question about ViewSonic Projector PJ800 Multimedia Projector

Open Question

Red vertical lines in right third of display

Hi, I just bought a used PJ800 (in "working order" - supposedly!). When I got it home and turned it on, I discovered there are bright red vertical lines in the right third of the display. No adjustments to Color / Picture that I made had any effect. The lines are there with no input ("blank screen") and also with the input connected. Additionally, when any of the menu options is highlighted, it becomes unreadable - some sort of distortion / lines. Any ideas on what this is, how it could be fixed? Also, how do you reset this projector to Factory Settings (if that might be helpful?)... I don't see an option for that in any of the menus. Thanks for any help you can offer!

Posted by on


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

  • 286 Answers

SOURCE: Picture full of lines and flicker

Zdenko did an excellent job. Voltage regulators and the capacitors on the main boards and in the power supplies are always suspect. Some times you can narrow down the culprit buy purchasing a can of freeze spray. Let the TV warm up and try freezing suspect components to see if this causes a reaction. Thermal problems can often be found in this way.
Of course, if you're not able or willing to replace components on the circuit boards, you can always replace the main board or power supply board after determining which is causing the problem. These parts should be available at your local Viewsonic service provider at a reasonable price.

Posted on Feb 14, 2008

  • 563 Answers

SOURCE: Viewsonic Projector not displaying RED

Hi there

This could be a problem on the Mainboard - because all the proccessing from your inputs is done on the Mainboard.

Try replacing it , I'm sure you'll have joy then.

Posted on Mar 26, 2008

  • 563 Answers

SOURCE: Viewsonic Projector Blue Vertical Line

Hi guys

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

No shortcutts on this one !

Posted on Mar 26, 2008

  • 14 Answers

SOURCE: after lightening zap

Call your insurance agency as this should be covered under your homeowners policy. The main driver board is made by JeanCo of Taiwan and is not replaceable and cannot be ordered as a part.

Good luck

Posted on Jul 13, 2008

  • 1 Answer

SOURCE: Projector shut off

Your lamp may well have died..

Posted on Dec 27, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Just bought a hunter remote ceiling fan with light install it just has how the manualsays it suppose to , install two 40 watt bulb turn on the fan with rrmote works fine but wen turn on lights it keep...

Make sure the toggle switch (if you have one)inside the transmitter is in the correct position for the type of bulb. Could need a new receiver. Was this one of the low-end fans sold in Home depot Or Lowes? Remember, you get what you pay for!

Aug 04, 2014 | Dryers

1 Answer

Just bought 2011 Dodge Ram Quad Cab. While driving home (and after the dealership is closed), we discovered the headlights turn off when high beam switch is activated. Is this common? Is there a so

not sure with your vehicle, but DIMMER SWITCH could be cause of your issue ! my vehicle did same thing, I replaced the dimmer switch & had no problems since !!!

Mar 31, 2013 | Dodge Ram 1500 Cars & Trucks

1 Answer

When I turn on the tv, it has a bright white stripe across the screen,no sound and after only a few seconds something inside clicks and the tv turns itself off.....any ideas or time for a new tv. I just...

Sir the problem of your tv is the vertical section it is fixable but you should be handy and know all the parts of electronic this vertical IC is attache to a small aluminum plate it is the heat sink, try to look for loosed or cold solder you will see this cold solder in the solder part of the PCB but be sure to unplug the unit before opening it, and also look for bulging capacitor. ekcnoel_9.jpeg
this is the cold solder or loosed solder it is much better if you use a magnifying glass to identify the cold solder. ekcnoel_11.gif
this is the picture of bulging capacitor. Or you try to contact a technician to do it for you and save you from stress good day and best regards.

Sep 19, 2011 | Samsung TXM3297HF 32" TV

1 Answer

Power Light blinking 5 times

check the resistors near the
stk's. There are some reports that they get fried when the stk's fry....or the other way around. The resistor ratings are labeled on the resistors. 2.2, 82, 180 or something like that. Also check the board as you turn on the tv. See if any glow red.

Sep 22, 2008 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Television repair

This Tv meesed up Vertical IC LA7033 ( LA7830) ( defected) and 2200uf 35 v, 100uf 35v, need be replaced all together, other possible cause, convergence (2) IC's stk392-110 . you can buy on or I will help with this . Thank you

Aug 12, 2008 | Toshiba Televison & Video

1 Answer

Eske told me to ask you!

Are the vertical lines across the entire Screen? If so it could be the control Board. If the lines only go part way from the top but not all the way to the bottom. Depending on where they are it could be the x boards. can you post a picture of your screen with the lines?

Jun 25, 2008 | Norcent Technologies PT4231 42 in....

1 Answer

Norcent Problem

I work in computers for the most part,

Please ask Slinteriors

Hes the TV guy to ask.

Please don't rate this solution, don't rate don't rate don't rate dont rate dont rate.

Thank you,

Jun 23, 2008 | Norcent Technologies PT4231 42 in....

1 Answer

Viewsonic pj800

I had the same problem with a few pj800's that I have worked on. It turns out that with old age and constant hot and cold temperature exposure the pixels in lcd panels will become shorted or actually die out. When current is applied there is no pixel activity therefore causing distorted images and lines that appear to drop out or down in the picture. Replacement of all 3 lcd assemblies is needed to correct problem. And being such an old projector the price of the parts would exceed the cost of a new bulb. I reccomend trying to find a used one for parts working or not 99% of the time the lcds are usually fine. Or check out ebay for some used projectors you can find up to date used ones with three times better picture quality than the pj800 for under $300.00 shipped. Good luck!

Dec 20, 2007 | ViewSonic Projector PJ800 Multimedia...

1 Answer

Screen has 1 solid bright vertical line

a mylar capacitor 0.22mf 100v may be shorted besides the flyback transfomer.

Sep 30, 2006 | ViewSonic G810 21" CRT Monitor

Not finding what you are looking for?
ViewSonic Projector PJ800 Multimedia Projector Logo

Related Topics:

53 people viewed this question

Ask a Question

Usually answered in minutes!

Top ViewSonic Office Equipment & Supplies Experts


Level 3 Expert

2237 Answers

The Knight
The Knight

Level 3 Expert

74990 Answers

color wheel light...
color wheel light...

Level 2 Expert

138 Answers

Are you a ViewSonic Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides