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Console Logic
Channel Logic
Several channels on the console feature channel logic for use in talk studios or starting and stopping source devices. The logic
requires an interface circuit to be built by a qualified broadcast technician.
a) Remote Channel On-off w Tally
The circuit shown at the right will remotely turn a
console channel on and off and drive a tally lamp to
display the On-off satus.
b) Source Start-stop Circuit
The circuit shown at the right will close the relay for
~ 0.5 seconds to start & stop an audio source device
such as a CD player.
I N S T A L L A T I O N I N S T R U C T I O N S
IMPORTANT- improper connection to console logic can damage the console.
Channel
Logic
+12V
1K
22K
Channel
Logic
2N3904
Channel
Logic
+12V
1N914
10uF
47K
+
2N3904
22K
22K
+12V
1N914
10uF
47K
+
2N3904
22K
22K
4.15
ON
475
+12V
OFF
475
+12V
1k
ON/OFF
TALLY
LED
22.1k
2N3904
START
STOP
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