Question about InFocus ScreenPlay 4805 Multimedia Projector

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Fan Replacement Cleaned Fan, Checked Voltage on Board. Everything is OK I am assuming fan needs replacement. 3108NL-04W-B50 12v DC 80mm And possibly 60mm as well Any idea where to order? Thanks!!

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If the fan spins freely the problem is most likely not the fan but the 8 pin smd Mos-Fet fan speed control current amp has failed. Not difficult to replace and are a common problem with these projectors.

Posted on Nov 29, 2009

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If the voltage is ok for the 80mm (pn: 526-0192-xx) and the 60mm (pn: 526-0193-xx), replace them. you can get them from any infocus service center. try av solutions in ny. www.avsolutionsny.com. however, in order to replace them, you'll have to remove the top, front, and rear panels, remove the 2 power boards, the board shield, and the lamp housing. now you can unplug the fans and remove them. warning: be extremely careful around the colorwheel and the light tunnel (under the colorwheel). they are fragile and may fracture easily.

Posted on Dec 01, 2009

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1 Answer

My church has an EIKI LC-X986 projector that turns on for about 2 seconds then shuts down. The lamp is brand new and the filters are clean. I know the signal is working as I can see it for those 2...


Have a close look at the fan and check if there is a make and model number on it.
If you cant see anything, unscrew the fan and check on the hidden sides.
see what voltage it is. ie 12v dc or 24v dc

Ring the EIKI agent and ask them how much for a replacement rear fan, the EIKI part number, and also if they can supply the manufacturer of it and their part number.

Check that the fan connector is OK, and the socket where it plugs in.

Check that the fan turns freely.

report back what you find

Mar 24, 2011 | Eiki LC-X986 Projector

5 Answers

Fan wont turn on infocus x2, instead makes funny siren noise and attempts to turn. Small fan inside works fine, larger one cant but will turn if touched, so doesn't seem to be anything in the way of it.


This problem is almost never the actual fan itself failing..
The intermittent whine you hear is the result of the Mos-Fet fan driver chip which is the speed control current amplifier.
It's an 8 pin surface mount chip on the bottom of the main (lower) circuit board. This is a common failure with these projectors.
The chip is inexpensive and needs to be replaced by someone who is skilled in surface mount component technology. You can replace the fan but you will still have the same problem. Hint, the bad chip is not the one closest to the large fan connector... It's the one closest to the small fan connector and it will measure 45-60 ohm's between pins 7 and 8. the part (rns70d) is discontinued however there is a replacement that can be purchased at...

Sep 13, 2009 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

X1 projector's fans not working


if the fan is not moving but still receives voltage, just replace the fan. if you're sure the fan works but no voltage, hope you're good at soldering. you need to remove the main board and solder a jumper from the bad fan's power and ground to the working fan's power and ground.

Jul 05, 2009 | InFocus X1 Multimedia Projector

1 Answer

Fan noise loud, bulb burst. Replaced with new bulb. Noise even louder! Unit shuts itself off.


the bulb may have burst from overheating from a fan not working to cool it down. and it can be replaced. it does take, however, a while to replace it because you have to take half of it apart. but make sure it's the fan first. take the lamp door off and remove the lamp. use something small and thin to push in the switch that the lamp door usually activates. turn the projector on and see if the lamp fan and the colorwheel (the multicolor glass disk) are spinning. if the fan spins, the noise may be from the colorwheel motor going bad. the fan can be purchased through an infocus authorized service center. check the website for the closest one. but the colorwheel for the x1 cannot be purchased seperately from the optical engine, and that costs a fortune. but here is the part number for the 80mm fan- 526-0152-00.

May 23, 2009 | InFocus X1 Multimedia Projector

2 Answers

Lamp wont stay on. fan continues to work after lamp goes out. When power is turned on light comes on and fan starts working. with in a second or so the lamp turns off but fan continues to run.


Most likely you need to replace the lamp. It is possible the your lamp ballast is failing as it scales back to low-voltage DC drive, but more often than not this problem is traced to the lamp needing to be replaced.

Mar 29, 2009 | Multimedia Projectors

1 Answer

Fan not going round properly in Infocus projector.


you have to remove the top: 8 screws on the bottom, 2 or 3 on the back, undo the clips in the top vent on the rear (using a flathead screwdriver), remove the rear, unplug the wires, lift off the top and front (from the front). there are 2 fans, a 60mm and an 80mm. both are available from an infocus authorized service center.

Mar 23, 2009 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

Infocus screenplay 7200 fan failure with new lamp After powering on, red LED blinks 4 times which means fan failure of the fan that is part of the lamp module. Already returned initial new lamp and got...


Not sure if this helps with the 7200 bu had a 4805 with a failed fan issue. There are two fans inthe unit, one smaller one that cools the color (colour) wheel and the larger one that cools the lamp. This unit had a problem with the larger lamp fan not turning. Unplugged and disassembled the unit to get the fan out and tested the fan using a 9v battery and a couple of wires (best to uplug the fan from the controller board so you are not forcing voltage into the unpowered controller board... that said, I did it hooked up just peeling back the label in the centre of the fan and touching the wires to the solder contacts) The fan worked fine so figured the controller board was the issue, so this wasn't going to be a simple "buy a new fan" issue.

Here is where your mileage may vary...

I decided that it would be OK to just run the fan. Unplugged the fan and powered it from the 9V battery and assembled the unit and powered it up. Found that there was 7v available on the power board at the second pin that was alwasy on when the power switch was on (thats the positive 7 V pin, but measure it with a meter since we are talking about a different projector) and just wired the fan direct to pin 1 and 2 (1 is ground on the 4805, 2 is +7V) and so now whenever the main power is on the fan runs, so after ti cools down I just power off the main power when not in use... or let the fan run if the noise isn't an issue. Crude but effective fix.

Mar 13, 2009 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

Dell 3200MP DLP Projector Fan Problem


i would take it a part and look, I would be it is a 60mm or 80mm case fan....

newegg, xoxide, performance-pcs or any other PC shop will have 60mm and 80mm case fans.


just chop off the connector from the old case fan and crimp, solder (sp?) or twist with tape the connector back on......



Aug 25, 2008 | Dell 3200MP Multimedia Projector

2 Answers

SP4805 Fan Issue


the fans in these models do not have a speed sensor wire to let the main board know to turn off the lamp to not risk overheating. so if the fan goes, the lamp remains on. however, if the lamp exploded, check the vents for dust. there is a temp sensor that will shut down the projector if it gets too hot. if the vents are clogged, blow the dust out of the projector with canned air. the dust keeps in the heat that the projector is trying to expell. easiest way to repair the fan w/o buying a part: splice the fan wires together. they can share voltage. if the 80mm fan does not work at all after that, replace the fan (pn: 526-0192-xx).

Jul 31, 2008 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

Fan replacement


Im sure noone has written out instructions. I can offer some advice. I have a dell 2300mp dlp projector which is similar.

Take your time. if you start tugging on the case when taking it apart you can break things inside very easily. group your screws with other like screws and mentally note or use a label to know where they went in the projector. Make sure to remove the bulb before working on it. That bulb is almost worth more then projector and is VERY fragile. store in a safe place while working on it. While you have it apart use canned air to blow out the inside.

hope this helps.. sorry i couldnt be more detailed.

Jan 19, 2008 | InFocus ScreenPlay 4805 Multimedia...

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