Studer 928 Service Manual

928 Mixing Console
Operation E 2/1Edition: 07.02.01
2 OPERATION
2.1 Mono input unit 1.928.220
[1] MASTER ΣA, ΣB
Keys for routing the audio signal to the stereo MASTER busses.
[2] GROUP 1...8
Keys for routing the audio signal to the GROUP busses.
[3] TB DIR. OUT
Talk back, momentary pushbutton for talking via the command micro-
phone to the electronically balanced Direct Output.
[4] DIR. OUT/N–1
Key to select N–1 mode (“mix-minus” mode) for the Direct Output. In
this operating mode all selected sources except the channel’s own
modulation are audible.
There are two N–1 busses in the console: The N–1 ΣA bus, and the
N–1/ bus. The N–1 bus carries a mono mix of the ΣA mix. To pro-
vide a mix-minus signal at the direct output using the ΣA mix, the ΣA
and the N–1 keys must be pressed.
If the N–1 key is pressed and the ΣA is released, the bus is used as
the source of the mix-minus signal. The N–1/ bus carries a mix from
all the input modules which have their N–1 key but not their ΣA
keyspressed.
Typical application: Direct transmissions or telephone recordings, if
the concerned channel is used as a feedback channel to an outside
commentator.
The direct output can be jumper-selected to be pre- or after-fader (re-
fer to section 3.1.1).
[5] 48 V
Key for activating the 48 V phantom power for the transformer-bal-
anced MICrophone input. If phantom powering is active, the key is
illuminated. If the MIC2 option is installed (i.e. 2nd microphone input),
the phantom power is applied to both microphone inputs simultane-
ously if the 48 V key is pressed.
[6] ~
Key for selecting the test generator input. If selected, the key is illumi-
nated; a signal with a fixed level and the frequency selected in the
TEST GEN section of the CR Monitor unit is fed into the input.
If the ~ key is released, the LINE or the MIC input is selected, de-
pending on the LINE key [7].
Note: The test generator input is replaced by the MIC2 input if the corre-
sponding option is installed; in this case, no test generator signal is
available, but a second microphone can be connected.
PAN
AN TO GROU S
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Studer 928 Specifications

General

Brand	Studer
Model	928
Category	Music Mixer
Language	English