3M MP180 Operator's Manual page 42

• Plug the VGA-audio cable into the projector and the icon in the upper-left
corner of the image will display the "VGA-Audio cable" icon. See "Video Mode
Icons" on page 19.
The projector is making a noise.
• The projector has a small fan for cooling the LED light source. The fan turns
on and off automatically based on the projector's internal temperature. The
fan will turn on more often in warm environments or at high altitudes.
• The speakers make noise when the volume is set to high and nothing is
connected to the projector audio inputs. This is typical. Reduce the projector's
volume setting to zero.
• The speakers may make noise when the component AV cable is not
correctly connected to the video device. There are two red connectors on
the component AV cable. One is for the right audio channel and the other
is for the Pr component video signal. If these connectors are switched, the
projected image will appear green and an abnormal noise will come from the
right speaker.
My video device is connected to the projector but the projector will not
display the video.
• Unplug the AV cable from the projector and the home screen will display.
• Plug the VGA-audio cable into the projector and the icon in the upper-left
corner of the image will display the "VGA-Audio cable" icon. See ""Video
Mode Icons" on page 19
• The video output on some devices is turned off by default. Please refer to the
device's documentation for details on enabling the video output.
3M
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Pocket Projector 180
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