QOMO QD3300 - Manual (Page 17)

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can control various projector with the visualizer.
1. Connect the visualizer to the projector with the RGB VIDEO S-VIDEO
cables.
2. Connect the RS232 cable to the computer’s connector. The visualizer’s
RS232 port is located on its right side.
3. After completion of the connection, turn on the visualizer click [start] ->
[All Programs] -> Visualizer ->
and the following
dialog box appears as below:
When the indicator of “Current RS-232 Connection Status” is green, that
means the connection between the visualizer and the computer’s RS232
connector is good. If the indicator is red, please check if the RS232 cable is
connected correctly. When all the cables are connected correctly, please
click “Projector” to select your projector model under the drop-down list,
then click “Send”. If you can not find your particular projector model in the
“Projector”, please do the following:
1) Select “Baud rate” and “parity” and input the projector control code.
(The baud rate, parity and control code is supplied by projector’s
manufacturer, please refer to the projector’ manual)