Question about InFocus ScreenPlay 4805 Multimedia Projector

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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 replacement. Still having same error of 4 red LED blinks.

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  • joannaandmic Mar 23, 2009

    Same problem - we have replaced our bulb and now seem to have a problem with the fan which results in the whole thing overheating and turning itself off.

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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.

Posted on Dec 08, 2009

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1 Answer

In Focus LP 640 won't even turn on? Any help


There are several reasons this could happen, and can usually be identified by glancing at the Power LED. The following applies to this particular projector:

1) Blinking RED led- Lamp or fan failure. Usually this is a bulb issue and simply needs the lamp replaced and the lamp life hours reset. Below you will find an image from the owners manual that will allow you to translate the # of times the LED blinks into a problem/solutionrobertsager.png
2) Solid Red LED means unidentifiable error. You will need to contact customer support at that point to schedule service.

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Unresponsive, lamp dies upon start


if you don't hear a high-pitched whir, the colorwheel is shot and needs replacing. if you do, one of the fans might not be working and the heat shuts it off so as not to cause damage.

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New lamp, no power!


if there are no leds lit, i'm surprised that it powers up. but if there is no light when the fans are running, it may be the ballast that needs replacing.

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Same fan failure issue on 7200


do the fans work? they may need to speed up at certain times for cooling reasons (different signals may need more power. more power, more heat). if the fans aren't working up to par, you may need to clean them or replace them. use canned air.

Oct 04, 2009 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

Can't start infocus sp7200 after changing lamp.


The end of lamp timer has reached it's limit and won't let the new lamp strike. What you need to do is Reset the end of life timer. To do this, with the projector switched off press and hold both the up and down Brightness buttons on the projector. while holding them in turn on the projector. Continue holding the buttons in for 10 to 15 seconds This will reset the end of life timer in the projector.


Cheers

Sep 25, 2009 | InFocus ScreenPlay 7200 Multimedia...

1 Answer

4805


In the manual there is a chart which will indicate the nature of the failure depending on the number of times the red led flashes before a pause.

Most common is the projector's lamp timer has exceeded the operational lamp time limit.

While the projector's red led is flashing, press the volume up and down buttons on the projector simultaneously and hold them both in for 10 seconds.
This will reset the lamp inhibit protocol.

However if the lamp has thousands of hours of use you need to replace it before it actually fails.

Feb 28, 2009 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

I turn on the 4805,green led blinks & bulb does not come on?


After a few minuets does the green blinking light turn to a red blinking light?

If so the problem is the lamp did not strike.Either the lamp has failed (most likely) or there is a problem with the power supply (less likely)

Feb 12, 2009 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

FAST BLINKING GREEN & WON'T POWER ON


I had exactly this problem. After plugging and unplugging it multiple times over several weeks (even plugging it in quickly after it was unplugged but with the green light still flashing as suggested here) all to no avail, it just started working on its own one day. It worked for a few weeks and then the problem re-appeared.

InFocus tech support recommended:
1. Check whether the lamp door is securely closed.
2. Check the color of the LED and the number of time it blinks. (For me, a very fast almost flickering flash)
3. Does the fan operate? (My fan would go on when plugged in)
4. Remove the lamp module, shake it gently and reseat the lamp module.

For me, these steps did not work. InFocus then recommended that I send it to ProjectorDoctor http://online.projectordoctor.com/, and it was diagnosed with a bad power supply. $395, but it is fully functional again. Good luck.........

Jul 24, 2008 | InFocus ScreenPlay 7200 Multimedia...

1 Answer

Infocus projector won't turn on


From the infocus_lp650 manual
Table 2:
Red LED Behavior Explanation
One (1) blink The lamp won't strike after five (5)
attempts. Check the lamp and lamp door
installations for loose connections.
Two (2) blinks The lamp counter hours have exceeded
lamp life hours. Replace the lamp and
reset the lamp hours counter.
Optional Accessories Part Number
Three (3) blinks The projector has shut down the lamp.
Replace the lamp. Contact Technical Support
for repair if replacing the lamp does
not solve the problem..
Four (4) blinks The fan has failed. Replace the lamp (the
lamp module contains a fan). Contact
Technical Support for repair if replacing
the fan does not solve the problem.
Five (5) blinks The projector is overheating. Check for a
blocked air vent. Contact Technical Support
for repair if clearing the air vents
does not solve the problem.

Jun 18, 2008 | InFocus ScreenPlay 4805 Multimedia...

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