User's Manual
A. Automatic shutdown
1>Whether sleep function is turned on, refer to ordinary computer
inspection items for troubleshooting;
2>Check channel where input source is located, no signal will cause
automatic shutdown;
3>Check stability of power supply.
B. Indicator light does not light up
1>Check whether power supply is normal;
2>Check whether rocker switch of conference panel is turned on.
C. Indicator light is red and cannot be turned on
Please unplug all external connection wires and restart after 15 minutes
of power failure.
D. Image lacks color and color is abnormal
If using an external computer, check whether VGA cable is not connect-
ed well or is damaged.
E. Display screen is not full or out of range
1>Check whether resolution is best 16:9 resolution;
2>If using an external computer, adjust AUTO switch when plugging in
or unplugging VGA cable.
F. Device has a picture but no sound
1>Please try to adjust volume;
2>If meeting is using an external computer, check whether audio cable
is connected correctly.
G. Inaccurate touch positioning
1>Check whether touch pen or finger is touching screen vertically at 90
degrees;
2>Check if there are other items touching screen, such as small paper
strips and sleeves.
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