Question about InFocus LP640 Multimedia Projector

1 Answer

Red Color After about one to two hours of non stop use the color red is no longer being projected onto the screen. Is this a failing lamp or some other problem?

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,237 Answers

Lcd panel failure or bad main board. either way, you'll have to send it in for repair.

Posted on Dec 29, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My red color is not coming in very good. i think i need to replace the bulb. how can i get a replacement bulb?


Hi Misty,
I would reset or zero out all the colour/ contrast settings first.
You can access all these via the menu on the remote.
If the reds still seem a bit weak, you can purchase new lamps on the internet. Depending on how old the TV is, a new LED flat screen might be the go. The picture difference from rear projection to LED panel is significant.
I would strongly suggest you do not replace the lamp yourself, there are dangerous voltages inside the TV cabinet.
Also, if one lamp is weak there is a good chance the others will fail soon. If it has done more than 5000 hours, time for a new TV.

Oct 20, 2013 | Sony KP-65WS500 65" Rear Projection...

1 Answer

Tv will not power up although power light comes on then turns red


Does the light blink or is solid red? If not I would first remove the lamp and examine it to see it is not shattered or damaged inside.

Lamp can look ok and be bad--about only sign is sometimes just before it fails the picture will take longer to come up or is darker.

Lamp life averages 2000 hours or 2 years---less if a generic or NON Sony lamp is used.

When was lamp last replaced and generic or?

Dec 11, 2012 | Sony KDF-E42A10 42 in. LCD Television

1 Answer

My tv screen when on turns yellow then after a while it will switch back to normal colors what can be wrong with it....


Televisions covered: all Projection with yellow picture, but not Projection TVs with a yellowish tint surrounding objects in a nearly normal picture.

Yellow = red + green
normal picture = red + blue + green (RGB). See illustration.

12_27_2011_5_00_56_am.png

Fig. 1 Additive color mixing in an RGB monitor, or RGB Projection TV.

The circuitry powering your blue output, or the blue light engine itself is starting to fail.

Operating Theory:

The lamp module shines a bright light into the optical unit; there are a series of lens and baffles, and at the top of the light engine, a lens puts the picture into a mirror which is reflected onto the screen; All video and color is processed thru the light engine. Blue most commonly fails first, leaving a yellow picture.

Dec 26, 2011 | Mitsubishi WS-55805 55" Rear Projection...

1 Answer

My LCD projection tv(KF-50E200A) displays projection lamp week when switched ON and out of red color display on the screen. Is this will happen if the projection lamp is week?


no and yes
the lamp warning is to alert you that a timer has expired that clocks the approximated life of the lamp in "hours of use".
it is never accurate and is dependent on whether or not it was reset the last time a lamp was replaced.
reset the lamp timer in the users "setup" menu.

the lamp has NOTHING to do with color, it only provides light.

check the connections between the TV and cable/satelite box...the red.green.blue component connector...the red one is likely loose.
if this does not correct you color problem, your optical engine has failed.
very expensive repair, not for the DIY type guy.

Apr 17, 2011 | Sony KF42E200 TV

1 Answer

Sony Bravia KDS-55A3000 while watching last night screen went black as if someone turned the TV off when attempting to turn it back on the the power indicator light flashes green repeatedly stops then a...


It sounds like the lamp has failed. It is advisable to use a genuine Sony lamp. The part number for is XL-5200. It will cost around 180.00. That should fix you problem. If you cannot find the lamp local to you can order it form Sony at.
1800-222-SONY
I hope this help,
Skyassoc

Dec 15, 2010 | Sony KDS-55A3000 55" HDTV

1 Answer

My rca rear projection tv screen turns mostly green after being on for about 2 hours and the writing is blurry


Not an uncommon problem with projection TVs. The image is projected onto the screen by three high intensity lamps located in the base of the unit, one tube for each of the three colors necessary to recreate the video signals. (red, green, and blue). Direct view TVs have all three built into the neck of the picture tube. The from each of these colors are controlled by signals and voltages applied to wire mesh screens, called grids, that are part of the tube. Sometimes these internal grids fail in such a way so that as the device got warmer the wire in the grid flexes as it gets hot and at some point contacts something else in the tube. In your case, assuming that the picture is good until the failure, the green tube loses control, goes into overdrive, defocuses, saturates the display with green. If you open the unit, you can see the three tubes and verify the failure. The proper fix is to replace the faulty tube. Sometimes opening the unit will keep the internal temp cool enough to prevent the failure. In a pinch, (Superbowl Sunday, 2004), a cooling fan installed in back worked. I hope this helped.

Jan 08, 2010 | Sony Televison & Video

1 Answer

My screen is black but i ges sound then the red


Have you checked that the lamp is working? If the lamp hours are too high, then the television will no longer function until the lamp is replaced and the counter reset.

When you have replaced the lamp, do this process to reset the timer:

1) Press the Menu button
2) Scroll down to the LAMP TIMER RESET option, scroll right to enter
3) Confirm that it is OK to reset the lamp timer by hitting the OK button.
4) The on-screen menu should confirm the lamp was reset correctly.

Mar 05, 2009 | JVC HD-52G886 52" Rear Projection HDTV

1 Answer

Samsung hln617w non power up


Most of the time when these sets won't turn off it's caused by the DMD but check the color wheel connectors first, especially the flat ribbon cable. Make sure it's in the connector in the correct direction, only has contacts on one side and make sure the ribbon is not torn.

Mar 03, 2009 | Samsung HLN617W 61" Rear Projection HDTV

1 Answer

Infocus 4805 blinking red light problem


My first questions is:

Is this the first lamp you have placed into your Infocus pj? If not, did you reset the hours when you did it last time? Otherwise that can also confuse the projectors internal system thinking there is NOT a new lamp in there and there for make it stop working once the clock hours are expired and over the 3000-6000 suggested hour life.

Let me know so I can help trouble shoot other possible problems.

Oct 27, 2008 | InFocus ScreenPlay 4805 Multimedia...

Not finding what you are looking for?
InFocus LP640 Multimedia Projector Logo

Related Topics:

229 people viewed this question

Ask a Question

Usually answered in minutes!

Top InFocus Office Equipment & Supplies Experts

jasbo
jasbo

Level 3 Expert

2237 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

The Knight
The Knight

Level 3 Expert

75767 Answers

Are you an InFocus Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...