Question about InFocus LP70+ Multimedia Projector

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How to fix dim picture?

I got a used Infocus LP70+. The lamp is brand new, but still picture is very dim. Brightness adjustment doesn't help much. The picture is sharp and good colors. DMD Chip replacement help in this situation? Or is it just that color wheel is needed to replace?(sorry my bad english... :) )

Posted by Anonymous on

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5 Related Answers

geekpdx

  • 2 Answers

SOURCE: Infocus LP70 - It's all Green

A tinted image (whether green or another color) is almost always a symptom of a bad or damaged cable - or a loos cable connection. In your case, you'll likely need a new M1 to VGA cable (Part# SP-DVI-A-R).

Assuming that you've made sure that the cable connections are solid at both ends, there is a simple test to verify that this is a cable issue and not a costly projector issue. While the image is tinted green, open the menu. If the menu colors appear fine while the rest of the image is still tinted green it's the cable.

Posted on Nov 21, 2007

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Anonymous

  • 149 Answers

SOURCE: 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.

Posted on Oct 27, 2008

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jasbo

  • 2239 Answers

SOURCE: lp70 flickers and color wheel chirps at the same

it's chirping because it's trying to keep in sync with the dmd chip. for the refresh rate, go into the menu and first reset the settings to factory default. if this doesn't clear it up, try matching the signal.

Posted on Aug 10, 2009

Anonymous

  • 17 Answers

SOURCE: the color wheel on my infocus 7200 is bad and getting worse.

Have you cleaned the inside of the case out? It may be dusty and dirty. UNPLUG FIRST! If you can carefully remove the cover and inspect. Use a vacuum in reverse or canned air to blow out loose dust and debris. Clean or replace any projector filters.

Posted on Sep 10, 2009

Testimonial: "Thank you Tom! This has helped tremendously"

Anonymous

  • 167 Answers

SOURCE: InFocus LP70 color problem

No it's not the color wheel. If the color wheel stalls the lamp will shut off immediately which is a built in protection mechanism. On the LP70 and 70+ there is a multi pin connector inside located at the rear lower left of the projector. This connector connects the main board to the DLP engine electronics. This connector is horizontal and approx 2 1/4" wide and 1/4" thick and about 100 pins. I have seen this connector not seated completely and many various video artifacts occur (even the one you describe) If you or someone you know is electro-mechanically savvy it's not difficult to open the projector and make sure this connector is seated properly.
You will need a TORX T8 screw driver.

Cheers

Posted on Jan 16, 2010

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