Technical information

17
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 CD which is shipped with the FI+Z
system to a PC.
 Make sure that the Hand Unit is not powered.
 Connect the serial cable 4651(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.
12. Remote Iris Unit
A socket is provided on the bottom of the HU3 for an external, cable connected, iris
control. When the external iris control is connected, the slide control on the FIZ will be
disabled.
13. Focus Ring Light
. Under low light conditions, two white LED’s will automatically
illuminate the Focus Ring.
To Change the brightness of the LED’s: tap the top/ bottom of the Nav key to
increase/decrease the brightness level.
When the MDR2 is connected to a Cooke i-Lens with cable #4544, the lens LED’s can be
controlled by pressing the right/left side of the Navigation key to brighten/dim.
Fig 11.1 Fig. 11.2 Fig. 11.3
Fig. 12.1 Remote Iris Box p/n 4020