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AKAI DLP PT50DL14, NO VISUAL OR AUDIO , SOME KIND OF GRINDING NOISE WHERE THE LAMP IS.. I HAVE TURNED IT OFF FOR 5 MINUTES AND STILL THE SAME PROBLEM

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  • Frank Pisani Jun 05, 2008

    My Akai is rear projection and was made by samsung.
    I do not get a picture or sound. Only a red light comes on below the picture.


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This is your color wheel bad it is a moving part please do not use you will damage it more. to fix this you will have to hire a tv repair shop. cost if only color wheel is around 450.00. and in some cases you have to replace the light engine which would be around 950.. to fix.


Thanks doctor video

Posted on May 18, 2008

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You need to replace your color wheel.

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Pt50dl14 i changed the lamp turned tv on. bulb lit then shut down within seconds. now the lamp and stand by/ temp. are flashing and tv will not turn on?


If Akai brand that is Samsung (they own the name).

I have a simple suggestion-----remove the lamp with cartridge (set unplugged) and look where the lamp faces-----the color wheel this model uses fails--I will attach a photo.

What you are looking for is: are any segments missing or the wheel even shattered?

These fail often and the set if wheel (turns at over 8,000 rpm) slows down, shattered, or missing pieces the set will detect that and turn the lamp off almost instantly.




4_13_2012_5_44_30_pm.jpg
Let me know as if this is the problem it can be a do it yourself replacement as You Tube has video instructions for this on most models.

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Akai DLP projection TV. Picture is fine except lamp is not illuminating a 3-4in area on the left side of the screen. You can see the picture over there but it is dimly lit. I can't seem to find a way to...


The problem is the light tunnel is collapsing. This is a VERY common issue with the Samsung/Akai DLP TV's. It is four mirrors used to transfer the light after it passes the color wheel to the DMD board. When part of it collapses the grey bar that you are seeing is the end result. This is a part that usually requires a technician to replace as there is a little tear down of the light engine itself and you would be handling delicate parts. The part number for the tunnel assembly is BP96-01961A and I have included a link so you can purchase it through the Samsung website. Please take a few moments to rate my answer. Thanks..

http://www.samsungparts.com/part_detail.asp?catalog%5Fname=Parts+and+Accessories&product%5Fid=BP96-01961A&search%5Fmodel=PT50DL14

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Here's a link to order the original Akai light/optical engine for this model (PT50DL14) from a major parts distributor:


Akai Samsung PT50DL14 Replacement Part Light Engine / Optical Engine Block

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check for popped or raised tops on caps in power supply. also try unplugging set for 5 minutes and resetting it. How about does your color wheel spin up? if your color wheel don't startup then your tv will also shut down. also check all fans they all should be running at turn on. if all fails i would say its your light engine.

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is it in the screen it self ?

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Pix looks like a light pipe issue, inside the Light Engine. as far as the shutting down, could be a bad fan causing the grinding and when stopps the DMD turns the set off.

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