Question about InFocus ScreenPlay 4805 Multimedia Projector

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Unable to switch off projector with remote (Infocus SP4805)

I am unable to power off my Infocus projector SP4805 with its remote control all of a sudden (So, I have to power-off with switch on the Projector unit). The remote control IR red signal blinks when push the buttons and buttons backlits ok (I have replaced remote control batteries). Not sure what to do!. Please help. (Projector is 2 years old, not used too often, couple of DVD movies a month. Just to note since a year ago some time notice a slight gray area in the centre of the screen (wall) projection and heard it is common issue and has not been problem as it not very noticeable.)
Appreciate if you could help.


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A bit unusual for the projector to stop responding to the remote. Usually it follows when someone has opened the projector, they forgot to reconnect the controls from the case top which also includes the IR receiver. If it isn't that, it could be a broken IR pc board or bad connection. I've seen that.

The worst case is that the IR controller on the main board has failed and if that's the case, you'll have to live with it as the cost of a new board is very high.

Posted on Mar 13, 2008

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