User manual

Imagestore HDTV User Manual Overview
Miranda Technologies Ltd Page 117
Video ADC 8
Configuration
Up to 8 external faders (potentiometers) may be connected thought the rear
panel GPI port of the Imagestore HDTV. These faders are used to manually
control the rate at which the Imagestore HDTV will execute a command and
will override settings made through the front panel.
Analogue faders may be used to control fades and mixes. A resistive (linear)
potentiometer of at least 10KΩ should have its fixed terminals connected
between pin 7 (+5V) and pin 15 (Ground). The variable output of the pot
should connect to the appropriate fader input pin.
Screened cable should be used to connect the fader to the Imagestore and the
screen of the cable should only be connected to ground at the Imagestore end
of the cable to avoid earth loops, and to restrict extraneous signal levels to
less than 1 mV.
To set-up and configure a fader select the option from the menu tree you wish
to control. Each option then has a further 4 menu settings.
Fader
Sets the ADC (Analogue to Digital) channel the fader is connected to.
ADC Channels
Fader ADC No. Signal name GPI Pin No
1 ADC 1 ANA_IN0 19
2 ADC 2 ANA_IN1 6
3 ADC 3 ANA_IN2 18
4 ADC 4 ANA_IN3 5
5 ADC 5 ANA_IN4 17
6 ADC 6 ANA_IN5 4
7 ADC 7 ANA_IN6 16
8 ADC 8 ANA_IN7 3
GND GND GND 15