Manual
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secondary or multiple reflections. It is feasible to adjust the projector or replace wires.
2) When remote controller cannot control matrix:
A. An obstacle is in the way of controlled device;
B. Low battery. Please replace the battery. It should be noted that there is a protective film on the
battery of new remote controller. Please remove it before use;
C. Remote controller may be broken. Please contact our after-sale service;
3) When serial port RS-232 (usually refer to the serial port of computer) cannot control matrix,
check if the communication ports of software correspond to the serial port of device; if
communication port of computer is in good conditions.
4) If there is no beep sound during switching of input/output signal, it is probable that the software
has disenabled buzzer or buzzer goes wrong. Please call on professional personnel.
5) During matrix switch, buzzer, LCD display and serial port is normal, but there is no image
output;
A. Check the input terminals of row and field with oscilloscope or universal meter. If there is no
signal input, input cable may be broken or have a loose connector. Replace the connection wire;
B. Check the input terminals of row and field with oscilloscope or universal meter. If there is no
signal output, output cable may be broken or have a loose connector. Replace the connection wire;
C. If problem still remains after replacement, inside of machine may go wrong. Please hand over
to professional personnel.
6) Overlapping curve, ripple, shaking low-frequency interference can be seen in some channel. It
may be caused by bad contact of ground wire.
7) If static is obvious when releasing and plugging HDMI connector, ground wire of power source
may have bad contact with ground. Please ground the wire reliably; otherwise, it would be likely to
damage equipment or shorten the service life of host.
8) Panel keys, RS-232 and infrared remote controller don’t work. Inside of device may be broken.
Please hand over to professional personnel.
