Question about Panasonic PT-56HX41 56" Rear Projection Television

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Projector I would like to replace a small piece glass from inside the projector

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If this piece of glass is in the image pathway you require the correct replacement part to install and that are quite sizable and expensive

Posted on Apr 29, 2010


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Posted on Jan 02, 2017


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How do I get rid of the dark shadow across the top of the screen?

This is actually a fairly common issue with the NEC projectors, especially if they are mounted from the ceiling (upside down). The problem is the compartment immediately after the bulb. What happens is the 'paste' they use to adhere the glass prisms to it's plastic component wears off overtime due to the immense heat from the bulb being projected onto it. The glass prism piece ends up leaning against the bulb compartment creating the annoying 'shadow'.

Heads up; you will need to take apart almost the whole projector. You'll need to expose the mirror array to get to the compartment just after the bulb. Once you've dissassembled the projector down to the mirror array, take out the problem part. It's a small black plastic cube frame that's held in by a screw and has 3 glass/plastic prism pieces. Looking down at the disassembled projector, you may not be able to see the glass/plastic prism pieces but I can assure you that it is the small compartment immediately after the bulb compartment.

Once you've identified the component and taken it out, you'll see the prism piece(s). The problem prism is the one that sits closest to the bulb and it was either slightly loose or had fallen off completely. Please note that there is another one of these exact prisms on the other side of the assembly you pulled out just behind the plastic looking prism. This secondary one come loose very rarely but if it does, you'll need to fix that too.

The Fix: Since the component is going to be exposed to immense heat again, you'll need to buy an adhesive that can withstand that heat (think at least a few hundred degrees for safety sake). I bought the JB-Weld Steel Reinforced Epoxy since it can withstand heat up to 550F. Make sure you read the instructions before starting. An added suggestion is to scrape all the old residue from the old adhesive off the component and prism(s) first, then scratch some grooves into the connecting pieces and apply the epoxy/adhesive. Do not scratch up the actual prism itself; scratch the 'extra' glass on the prism piece where it will connect with the plastic component. The grooves help the epoxy bind to the pieces and I highly suggest this since I've had to re-do a few in under a year. Let the epoxy set for a good 24 hours before putting the projector back together.

Nov 03, 2014 | NEC NP400 Projector


A fault of too much cleaning.

NEVER clean inside a microwave with a ball of kitchen type stainless wire wool.
I did, a tiny piece of wire too small to notice stuck to the glass door; a fairly long microwave cooking session melted and fused the wire to the inner glass of the door; there was a snapping sound and inspection revealed that it, the inner piece of glass, was finely crazed and too dangerous to use.
The cooker, a superb Brother manufacture (no longer made) was ruined; a replacement piece of glass being unobtainable.

on Oct 17, 2017 | Microwave Ovens

2 Answers

Small dots on the screen

if the dots are white flashes of dots , then the dmd is at fault and has to be replaced
ask ur technician to give u a used dmd which should cost you less than 100usd with labor

Jan 18, 2013 | BenQ MP623 DLP Projector

1 Answer

I have a DELL 2300mp i heard a loud sound and it sound like the fan was making a sound i took the bulb out it looked good ,when i took the bulb out i was get small pieces of color thin glass like a le

as your description, the color wheel should be shattered now. so you have to bur a new color wheel and replace it.

if you need any further help, you can freely contact me,

Mar 11, 2012 | Dell 2300MP Multimedia Projector

1 Answer

PT-AX200U Bulb replaced 4 months ago Was on about

carefully take the lamp cover off, and see if there is any glass pieces inside. if all looks Ok, then unscrew the lamp housing and remove the lamp. check for any damage. be careful not to damage the lamp or bump it. These lamps generally contain mercury vapour, so try not to inhale anything if it's broken.

Apr 09, 2011 | Panasonic PT-AX200U Projector

1 Answer

The inside glass of my built in double electric oven has cracked and now has a small piece of glass missing. Can the glass be ordered and replaced or do I need a repairman?

You should be able to obtain a replacement door glass from the manufacturer. They are normally available for most makes of ovens.

Jan 26, 2010 | Whirlpool Ovens

3 Answers

Optoma EP719 projector broken circular glass disk

The piece that's cracked is called a color wheel. I spoke with the parts department at optoma and they want $300 for a new color wheel for my ep 732h projector. I'm not sure if it's the same part but you can contact optoma on their website and they'll get back to you with a price quote for that part.

Jan 16, 2010 | Optoma EP719 XGA DLP PROJECTOR 2000L...

1 Answer

Infocus X2 projector shows picture in black and white only...

that little glass square broke off of the colorwheel, and it needs to be replaced. that yellow/gray line is from the light tunnel collapsing. both parts can be purchased and replaced by you. if you don't feel comfortable doing it, you can send it in to an authorized service center. try av solutions. they're pretty good. you can purchase infocus parts from them, too.

Oct 27, 2009 | InFocus Office Equipment & Supplies

1 Answer

My InFocus 4805 SP projector is showing just black and white

If you have any video at all and it's only Black and white there is a 99.99% chance that your Color Wheel has lost all of it's glass color filters.
You can confirm this by removing the lamp. then look straight into the projector where the lamp was and you should see the color wheel of colored glass segments (Red, Green and blue) I believe you won't see them because they came off of the wheel.
Also if you lift up the projector and turn it around in various angles and you will hear the small pieces of broken glass from the color wheel.
Unfortunately you will need to take it to an authorized service center for repair. Be prepared to spend upwards of $300 for the repair.


Aug 23, 2009 | InFocus In Focus SP-LAMP-021 Replacement...

3 Answers


The Stress of impact on the imaging forming unit that is directly behind the projection lens has a flat glass surface. If it is cracked the stress cracks would project with any image because they are on the same plane as the image

Nov 22, 2007 | BenQ MP610 Multimedia Projector

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