18
Lens limits can be used to lock a motor to a given position. This is done by setting a zero-
span, where the beginning and end of the range are the same point. To lock a motor,
position the motor to the desired point and press the set button twice.
11. CineTape Interface
CineTape units can be used to provide a distance reading that is displayed by the HU3
main display screen.
The CineTape interface (p/n 4742) connects the Remote Lemo receptacle of the CineTape
to the 4-pin Serial receptacle of the MDR3.
The CineTape data is displayed as soon as the interface is connected to the MDR3(Fig.
11.1).
Pressing the
Fshow
button switches the display from the remote distance measuring
device (Fig. 11.1) to a dual display (Fig 11.2) and finally to the default display (Fig.
11.3).
11. Software updates can be downloaded from the website
http://www.prestoncinema.com/downloads.html
. To load an update into the HU3:
Install the boot loader program from the downloads page.
Make sure that the Hand Unit is not powered.
Connect the serial cable 4538 (serial connector to 4-pin Lemo) between the serial
port of the pc and the Serial receptacle on the rear cover of the HU3.
For laptops without a serial connector, use a USB to serial adapter.
To initiate the update, open the HU3 update program on your PC. While holding
the iris set button down, press the Power button of the HU3. Release all buttons.
The HU3 display will show the message “Ready to load”.
The display on the PC should now report that it has found a connection to the HU3
and ask whether you want to proceed with the update. Choose yes. After the
program has completed the update, you can remove the serial cable from the HU3.
Fig
11.1 Fig.
11.2 Fig.
11.3
