Question about InFocus ScreenPlay 4805 Multimedia Projector

Disassembling a 4805

Can someone walk me through disassembling this projector as I need to also replace the color wheel as it is making the sqealing noise. Thanks.

2 Answers

Anonymous

Http://avsforum.com/avs-vb/archive/index.php/t-556431.html

hope this helps.

Posted on Dec 08, 2007

Anonymous

Well, let me give you some advice. Unless you are EXTREMELY adept at fixing things, have an elephantine memory for what goes where, and have very small and nimble fingers - pay someone who does this for a living to do it for you. I have two 4805's torn down to combine parts, and it's a pain.

Posted on Jul 24, 2007

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1 Answer

Just replaced burnt out bulb in Infocus 4805 projector. Great picture with new bulb but only black and white. Is this a bulb issue or something else in the projector?

This is most likely the color wheel. When the bulb blows, it can damage the color wheel. The color wheel is a wheel composed of thin layers of colored glass that spins in front of the projected image. It is possible to repair it with super glue, but the best way is to try to find a new one to buy.

Dec 29, 2010 | InFocus ScreenPlay 4805 Multimedia...

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My Infocus 4805 is just showing the INFOCUS logo and not showing the picture from the TV. all connections are correct but no signal....help

Powering On

If your InFocus 4805 projector is having a hard time powering on or doesn't power on at all, it could be one of two things. Due to the extreme temperature of the lamp that causes the temperature of the projector to rise, every InFocus 4805 projector has a cooling system. Check your projector's cooling solution, as it may need to be replaced. Also check the projector's fan---if the fan doesn't spin, the unit will not turn on. If the problem is the fan, you'll have to get it replaced. You can do this at the same place you bought your projector.

The Lamp

If your InFocus 4805 Projector powers on but does not project any light, the lamp will need to be replaced. All projector lamps must be replaced at some point---how often usually depends on how much use the device gets. Simply order a replacement lamp, unscrew the old one and screw the new one in. The projector will then work like new.

Color Wheel

If your InFocus 4805 projector powers on and is displaying images but the colors on the images appear warped or are not in the proper places, your "color wheel" will need to be replaced. The color wheel is a small device that essentially acts like a prism. Light is projected through it and it displays the appropriate colors on screen the way they appear in the original video source. Order a replacement color wheel that fits your model and use your instruction manual as a guide as you swap the old one out and put the new one in.

Aug 08, 2010 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

Lost color on infocus 4805 what needs to be done to repair this I just bought a new lamp then the color went

your color wheel needs to be replaced. i have the procedure listed in another of my solutions. this is a major repair for the inexperienced

Jul 03, 2010 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

Picture is black and white

Either the color wheel has thrown off all 6 of it's colored glass filters (most likely) and needs to be replaced. Or in the picture menu someone had turned the color all the way down (Less likely).

Good Luck!

SagerTronics

May 20, 2009 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

New Problem after fixing Light Tunnel on a SP 4805

It sounds like you have mounted the replacement light tunnel incorrectly. It is a common error. What has happened is you have the light tunnel sitting on yop of the positioning stop which is opposite from the color wheel side. If you take it back apart you will see that it's not laying parallel to the casting. if you reposition it so it is just touching where the opening is in the clamp on the color wheel side you will feel it fall into place.

Jan 22, 2009 | InFocus ScreenPlay 4805 Multimedia...

2 Answers

Color wheel in my InFocus ScreenPlay 4805 projector

The 4805 Color wheel part number is 525-0146-00

You can buy it from AV SOLUTIONS in NY

As far as if it's worth it... That's up to you.

Nov 07, 2008 | InFocus ScreenPlay 4805 Multimedia...

2 Answers

Color wheel

Bid on a used Infocus 4805 on Ebay...So far thet is the cheapest and best fix for a color wheel

Jul 22, 2008 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

No color

Color wheel disc is broken and not repairable, problem is unless you know someone that can get the part you have to take your projector to an authorised service centre.

Dec 11, 2007 | InFocus ScreenPlay 4805 Multimedia...

3 Answers

4805

Do you have the projector inside a hush box? If so, it could be too far back in the box. Readjust and see if that removes your shadow.
or
You may have a haze on your lenses. Have you tried cleaning your color wheel and associated lenses? This procedure is for the skilled since you must disassemble your projector. Keep in mind that the color wheel is VERY, VERY fragile. Use a lens cleaning agent or 91% isopropyl alcohol and q-tips. The agent must not leave a haze. Have plenty of time and patience since this may take you about an hour just to clean the color wheel. Did I mention that the color wheel is VERY fragile…

This link may also be helpful. See section 5.10.
http://japhule.collinsreport.com/4805FAQ/html/index.html#Q21

I hope this helps,
garrisos

Nov 22, 2007 | InFocus ScreenPlay 4805 Multimedia...

2 Answers

Horrible noise

it is the color wheel i have a similar problem and am looking for the part, the color wheel is a small electric motor that spins at a high speed and it can go bad. which will lead to the horrible squeel/hum/buzz.

Apr 24, 2007 | InFocus ScreenPlay 4805 Multimedia...