THE AUXILIARY MASTER MODULE
This board contains the master sections for the auxiliary outputs of the console in addition to headphone amplifiers and a talkback microphone amplifier for the headset microphone.
The 4 auxiliaries are identical and therefore it is only necessary to describe one. The signal from the bus is mixed by IC1 and is then passed through the fader followed by the ON switch to an SSM2142 balanced line driver which connects to the rear panel on the console. A feed for the meters and the solo system is taken immediately after the ON switch. There are headphone amplifiers for the front panel headphone sockets and another amplifier to feed the headset. A separate talkback amplifier exists for the headset microphone and this is fed to the COMMS board.
Q2 OPERATIONAND MAINTENANCE MANUAL 9601 | 66 |
