Assuming you are using the serial cable that came with your Projector.....
In the ControlCAL Terminal Window (at bottom right), does it have something like "
COM1:9600:8:None:1:Flow=N" or does it state "
No Port Opened!"? - NOTE: You don't want it to show: "
No Port Opened!"
COM1 in the above example is the COM Port and is the Port ControlCAL attempts to open by default. Usually, the serial port on a laptop is COM1 and there is a modem on COM3 but this may be different on yours.
Have you configured your COM Port from within ControlCAL (from the
MENU, under
SETTINGS, click on
PORT)? Try different COM Ports, it will alert you if the Port cannot be opened.
You need to select the COM Port that you connected the Serial Cable to on your computer. (You can try other COM Ports, but you really should know this part)..

Once you start ControlCAL and select the proper COM Port, press F12 a couple times... then try pressing "
REFRESH"
In the Terminal Window (Advance Mode), type the following 4 characters and press ENTER (for Mits HC Series):
00PP
..
Those are Zeroes..
You should see a reply from your 1500 (in green), something like "
--> 00PP+05[CR]" without the quotes (assuming your Contrast was set to +5).
You can also try:
00!
..which will Turn Power On (for Mits HC Series)..
00"
..which will Turn Power Off (for Mits HC Series)..
I know I need to work on documentation... I've been busy coding...
-Shawn