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I have a Vivitek 42" Projection TV. After 45-75 minutes, the colors start to bleed and the tv shuts down. One hour later the tv starts-up fine, then the process repeats.

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Sounds like an over-heating problem to me. The first thing you should do will be to unplug the set, remove the back cover, take a can of compressed air and empty it on the vents on the cover and on the PCBs inside. Try it and let me know so that we can try a component level repair if problem persists.

Sai.

Posted on Aug 21, 2010

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1 Answer

Keeps shutting Down


Have to start at the beginning---Lamp? Ballast? Color wheel?

Jun 07, 2012 | Samsung HL-R6167W 61" HDTV

1 Answer

I have a Vivitek RP51HD41-A TV. The TV keeps turning off and on. The color and sound is fine. I have replaced the lamp and this has not fixed the problem.


If its a DLP it may have a color wheel which could be your problem (the colors will change etc)

Color wheels move at high speed and if slow down set will shut down.

The wheel if there will face the lamp. If often if failing will make a high pitched whine or a fan like sound.


5_30_2012_3_29_06_pm.jpg

May 29, 2012 | Vivitek V37655 56" DLP TV

1 Answer

When turning on the TV, I hear a banging/grinding sound.


Hi,

If you hear a grinding,whirling,spining or buzzing sound, that sounds to me like the COLOR WHEEL,the reason for that is because your color wheel spins at 5,000 rpms(revolution per minute) and something that modifies the balance of the disc can cause different things,Unfortionatelly the only way to check that the color wheel is working properlyis you need to check it out physically

I did some research and I found the color wheel at DM;http://www.discount-merchant.com/Samsung-Replacement-Color-Wheel-HLS-HLT-Series-p/samsungcolor_wheel_bp96-01579a.htm?CLICK=52978

Please keep us posted.

Jun 14, 2009 | Samsung HL-S5087W DLP TV

1 Answer

52 inch Vivitek rear projection dlp-hdtv


hi ferrari,

changing the bulb isnt going to help. the t.v. is just one big disaster so you might as well rip someone else off just like vivitek has done to all of us. if the new owners tell you theres a problem with the t.v. tell them they must have messed it up during transportation. Thats what vivtek told us. =D

Apr 06, 2009 | Vivitek V37655 56" DLP TV

2 Answers

TV comes on fine but after about 10 min the picture freaks out.


color wheel needs replacement. You can get a new replacement at the following link.
http://servicemanuals.vstore.ca/

Apr 02, 2009 | RCA HD44LPW165 44" Rear Projection HDTV

1 Answer

Vivitek 56 inch dlp projection is humming. why and how to fix


In my experience, the humming means your color wheel is going. The bearings inside the wheel are probably giving out.
My Vivitek started humming a couple of months ago and first I replaced the lamp.
Still hummed.
I read in other forums that humming is linked to color wheels and that seemed like where the noise was coming from.
I purchased a new wheel online and replaced it myself...
..no more humming, the picture is great and now I can listen to the movie again...not the tv!

Mar 17, 2009 | Vivitek V37655 56" DLP TV

1 Answer

I just replaced the lamp and after about half hour screen goes green and blue. What is the problem?


I relaced a bulb and then my vivitek 56" started to do wierd color flickering, turns out that there was dust in the color wheel. I fixed by taking off the back and with can of air blew lightly into the color wheel area ( has tiny hole) I didn't put the nozzle through the holes. But the minute I did that a big piece of dust came out and tv is working great. Hope it helps

Feb 20, 2009 | Vivitek Televison & Video

1 Answer

Tv shuts down


does the main board have the flyback on it? if so the yokes or CRTs can be intermittently shorting which in turn triggers your shut-down.
turning it off or unplugging just resets the shut down circuit.

Sep 04, 2007 | Samsung HL-R4266W 42" HDTV-Ready...

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