Crystal Vision
Hardware installation
Input and output piggyback boards
The TANDEM 320 PCB has two positions, one for each video channel, where one of three
types of I/O module can be plugged to enable analogue or digital, input or output.
The three types of piggybacks are 3G-AIP2, 3G-AOP2
and DIOP4. The following table shows
the only legal combinations of piggybacks that can be fitted into front and rear positions.
FRONT
Video
Ch. A
none
DIOP4
3G-
AIP2
3G-
AOP2
DIOP4
DIOP4
DIOP4
3G-
AIP2
3G-
AIP2
3G-
AOP2
REAR
Video
Ch. B
none
none
none
none
DIOP4
3G-
AIP2
3G-
AOP2
3G-
AIP2
3G-
AOP2
3G-
AOP2
3G-AIP2 Analogue Input
This analogue module has four balanced audio inputs. The links PL1-4 allow 0dBFS to be set
to +18dBu (to the right, towards SK1) or +24dBu (to the left, towards SK2/3). The adjacent
potentiometers RV1-4 are factory set and should
NOT
be adjusted.
3G-AIP2 Channel number Link number
CH1
PL1
CH2
PL2
CH3
PL3
CH4
PL4
Table showing links controlling the input gain of the 3G-AIP2 channels
TANDEM 320 User Manual R1.3
8
11 July 2019