The Mux: Difference between revisions
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it's "get as much from the old site as possible" day!
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I've forgotten what the red buttons did, but they're now redundant. | I've forgotten what the red buttons did, but they're now redundant. | ||
''The main mux'' is the huge black thing in the AV rack, it routes video to different places, and also has analogue TV demodulators in. The main mux is controlled by an outboard box which sits on the directors/vision mixers desk. | |||
==Functions== | |||
* 32 input to 4 output matrix | |||
* 2 Nicam stereo tuners | |||
==Faults== | |||
2 composite inputs to the matrix are dead. | |||
==Controller pinout== | |||
'''1''' - +5V power | |||
'''2''' - 0V ground | |||
'''3''' - | 32x4 crosspoint switch control lines | |||
'''4''' - | - consisting of a clock (rising edge trigger) | |||
'''5''' - | CS (active-low) and Data | |||
'''6''' - NC | |||
'''7''' - Station Tuner control (I2C Data) | |||
'''8''' - Net Tuner control (I2C Data) | |||
'''9''' - Station/Net Tuner common control line (I2C Clock) | |||