Question about Sony KP-51HW40 51" Rear Projection Television

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It looks as your looking into a tunnel - Sony KP-51HW40 51" Rear Projection Television

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Left hand side of image appears darker than rest of image as if a shadow is caused from somewhere. Unsure if this is a lamp problem or a camera problem


If it looks like a dark orange/brown band, its likely to be a Light Tunnel Failure. The Tunnel can be fixed thru the manufacturer, but it will cost plenty. You can also do it yourself.
For additional info, go to www.avsforum.com and search for "4805 Light Tunnel" and you will see threads about the problem...as well as DIY repairs.
I also posted a DIY replacement option since new Tunnels are virtually non-existent:
www.avsforum.com/avs-vb/showthread.php?t=1304694

Dec 24, 2010 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

It blows cold air, takes a long time to dry


the heating element broke and cant complete the circuit to heat up (they sell replacements) . you find a tunnel looking pipe and inside it you will see a spring coiled around inside the tunnel - pipe . change it.

Nov 19, 2009 | Maytag Dryers

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Help! I have a Little Tikes outdoor play set with


I am looking for a replacement tunnel for ours. Would you be willing to sell the tunnel??

To take apart...Start with the slides, remove the rods first. Then select any exterior panel corner and pull up on one side and push down on the other. The tabs just slide, there is no hardware to loosen. Hope this helps.

Jul 18, 2009 | Little Tikes Endless Adventures Playcenter...

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I have a 5 year old RCA 61LPW42 HD DLP television. A few months ago a small dark shadow appeared in the upper left corner of the screen. Over time it has creeped down and become larger. Still starting...


It's the light tunnel. The tunnel is a square tube made up of 4 mirrors glued together.

It looks like this from the side: |_| (with a piece on top too.)
When the glue breaks down, it shifts inside the little mirror holder. The shifted mirrors looks like this /_/ what you are seeing is the shadow of the tilted mirror tunnel.
ON the RCA's there's not a good fix.

RCA's response:
"Ok, well sadly they do not offer the light tunnel anymore, which is what you need. Sadly you would be rendered to get a whole new light engine assembly. That would be the D.N.D module, light tunnel,color wheel,optic spanner, and oci. mirror. Your best bet would be to search ebay for a broken engine and replace it that ways."

That is the ONLY response I got from them.

I took the set apart and found the 4 tiny mirrors. I will be attempting to epoxy them together. (The set is dead anyway, why not try?)

Apr 04, 2009 | RCA HD61LPW42 61" Rear Projection HDTV

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TV has alittle dark haze,not bad,9inchs in from side,top to Bott


Probably the light tunnel. The tunnel is a square tube made up of 4 mirrors glued together.

It looks like this from the side: |_| (with a piece on top too.)
When the glue breaks down, it shifts inside the little mirror holder. The shifted mirrors looks like this /_/ what you are seeing is the shadow of the tilted mirror tunnel.
ON the RCA's there's not a good fix.

RCA's response:
"Ok, well sadly they do not offer the light tunnel anymore, which is what you need. Sadly you would be rendered to get a whole new light engine assembly. That would be the D.N.D module, light tunnel,color wheel,optic spanner, and oci. mirror. Your best bet would be to search ebay2_bing.gif for a broken engine and replace it that ways."

That is the ONLY response I got from them.

I took the set apart and found the 4 tiny mirrors. I will be attempting to epoxy them together. (The set is dead anyway, why not try?)

Feb 25, 2009 | RCA HD61LPW42 61" Rear Projection HDTV

1 Answer

RCA dlp - Shadow


It's the light tunnel. The tunnel is a square tube made up of 4 mirrors glued together.

It looks like this from the side: |_| (with a piece on top too.)
When the glue breaks down, it shifts inside the little mirror holder. The shifted mirrors looks like this /_/ what you are seeing is the shadow of the tilted mirror tunnel.
ON the RCA's there's not a good fix.

RCA's response:
"Ok, well sadly they do not offer the light tunnel anymore, which is what you need. Sadly you would be rendered to get a whole new light engine assembly. That would be the D.N.D module, light tunnel,color wheel,optic spanner, and oci. mirror. Your best bet would be to search ebay for a broken engine and replace it that ways."

That is the ONLY response I got from them.

I took the set apart and found the 4 tiny mirrors. I will be attempting to epoxy them together. (The set is dead anyway, why not try?)

Nov 08, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Samsug rear projection tv, everything looks green


Dust accumulation in color wheel, light tunnel, chip area can cause green tint.

It is very delicate area, light tunnel and chip can be easily damaged. Remove light engine assembly and color wheel. Blow dust out. Re-assemble. If the gasket around the color wheel housing is not replaced in the right position, or the housing screws not tightened correctly dust will contaminate the color wheel/light tunnel area.

Call someone that has done it a few times. If near Calgary, call me.


easyab

Jul 14, 2008 | Samsung HCM4216W 42" Rear Projection...

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Shadow on left side of image--light tunnel problem?


Hi there

Yes the light tunnel has four tiny mirrors facing each other. If you know what you're looking at you can easily glue it back.

Otherwise you'll have to get it replaced by a repairer.

Mar 21, 2008 | Sharp XR-10X Multimedia Projector

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