Question about HP vp6320 Multimedia Projector

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Hp projector projector lamp starts fine after 1-2 minutes the light flickers after another 1-2 minutes the light goes out after it is shut off and cooled down it can be restarted and 1-3 repete lamp is 2000 lumin purchased for school 9/27/05 less than 500 hrs of use

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Re: hp projector

This is caused by the color wheel sensor failure. The sensor is mounted very near the lamp and suffered extreme temperature. This problem can be corrected by installing the redesigned color wheel sensor. You also need to refocus the sensor due to different focal length. HP also recommended to replace the temp sensor cable. If you still have the projector, I can fix the problem for you.

Posted on Nov 30, 2008

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Just replaced the lamp in an XD520U and am having the same problem, but not hearing any high pitch noise. The Lamp has been reset correctly, and checking the info screen verifies it, but still after a

Have you used a genuine replacement lamp? There are some clones coming from oriental sources that do not accurately match the specifications of the original, and it's possible this may be the cause of the problem...
Was the old lamp still working when replaced? If so, reinstall it teporarily and see if the problem has gone. If so, it's the new lamp that's the cause of it

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Mitsubishi HC2 projector

Was the prvious lamp still working?

Jul 16, 2012 | Mitsubishi HC2 Multimedia Projector

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My projector (viewsonic pj452) started flickering. When it started it would flicker once in around 5 minutes but now it happens many times in a minute. I tried resetting it from the menu and through reset...

The power supply needs to provide a constant current flow
to the lamp. Any small change or in the current will be seen as flicker
in the lamp and projected onto the screen.
Problem could be with low voltage power supply, the ballast or the
lamp it self is beginning to wear out.

Jul 15, 2010 | ViewSonic - PROJECTORS - PJ452 1500 LUMEN...

1 Answer

Mitsubishi HC900 Projector shuts down after 5 minutes.

You have 1 of 2 possible problems.

(1) You need a new lamp.

(2) You have an overheating problem.

Just a quick couple of notes about your projector. It is a DLP projector (not LCD) and as such the machine as no air filters to clean. It does have air intake and air exhaust grilles, but no air filters to clean. This next part comes directly from the owner' manual for your projector:

When the lamp operation time exceeds 2000 hours*1 *2, the projector automatically shuts off and can’t be used until the lamp is replaced and the lamp operation time is reset.

Your machine is designed to give visual warning messages at 1500 hours used, and 1900 hours used. Did you see any visual warning about lamp life over the past few months?

If you were experiencing an overheating problem, a "TEMPERATURE!!" message would flash up on the screen just before the unit shuts down. If there is no warning, you don't have a heat problem.

If you have a replacement lamp available, install it and reset the lmap hours according to your user manual. If you don't have the manual, google it on the web (it available).

Apr 01, 2009 | Mitsubishi HC900 Multimedia Projector

1 Answer


The sound came from the switching power supply and the lamp ballast circuitary. You need to replace the color wheel sensor, I can fix it.

Jan 18, 2009 | HP VP6310 Multimedia Projector

1 Answer

Microtek cx6

I've had the same problem with my projector three times (usually whenever there's a sports championship). You just need to call optoma, get an RMA number, and ship it to them. Theoretically they'll fix it under warranty and send it back free.

May 02, 2008 | Optoma HD72 Multimedia Projector

1 Answer

Microtek cx6

Hi there

Firstly check when the Projector is switched on , if all the fans are running.

If they are , then it can only be one of two things - either the Powersupply or the Ballast that has gone faulty.

Is there any indicator lights on the unit that flickers , and also what colour ?

Take out the lamp and check for any irreugularities on it like discolouration ( vein like looking marks in either white or black ) or if there is any bubbles on the shaft of the lamp. In which case the lamp will be at fault and will need replacement !

Apr 17, 2008 | Microtek CX6 Multimedia Projector

2 Answers

Green light flashing and then shuts down

Hi Gary

Have you resetted the lamp timer ? It must be done when a new lamp is inserted into the unit.

You can reset the lamp timer by holding the up arrow key on the Projector in until a online message appears. Then just follow the on-screen instructions.

If the problem persists , you will have to replace the Ballast wich is the lamp's power supply.

Mar 16, 2008 | BenQ MP610 Multimedia Projector

4 Answers

Projector shuts down after only a few minutes.

I'm having the same problem. My Model is PB8253. Projector started, then afer a couple minutes it goes off with the red lamp led flashing.
Just replaced the lamp, but the problem persists. Tried to remove all connecting cables, except for the power, but still the same problem.
Anyone with similar problem or solution, please contact me at

Jan 19, 2008 | BenQ PB6100 Multimedia Projector

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