AKG AS8 Bedienungsanleitung Seite 29

Function Selection Switches 1-8
Dip switch 1 - chooses the channel mode. Auto Mode (down position) sets operation to auto­
matic, with channel gain determined by its signal level relative to other microphones. Direct Mode
(up position) turns channel fully on, irrespective of signallevels. Remote control feature functions
regardless of setting of this switch.
Dip switch 2 - turns +15V Phantom Power on (down position) or off (up position)
Dip switch 3+4 - set the gain of the input amplifier. 0dB gain, for line level input sources, is set when
switches 3 and 4 are in up position. 30dB gain, typically for high output (electret) microphones, is
set when switch 3 is in the up position and 4 in down position. 50dB gain, used for low output
(dynamic) microphones, is set when both switches are in down position.
Main Out
- Provides a balanced system output. The main out may also be used in an unbal­
anced mode by connecting the "+" terminal of the main out signal lead to the unbalanced de­
vice, and the ground terminal of the main out to the ground of the unbalanced device. Do not
connect the "-" terminal of the main out.
Remote Level Control
10k Ohm linear pots or an adjustable DC controlvoltage may be used. For chairman functions it is
also possible to simply shortcutindividual channel wipers (and main wiper) and the common ground.
In this mode the Automatic Mode is still working, if switched on.
Pin No Function
1 Channel 1 Wiper
2 Channel 2 Wiper
3 Channel 3 Wiper
4 Channel 4 Wiper
5 Channel 5 Wiper
6 Channel 6 Wiper
7 Channel 7 Wiper
8 Channel 8 Wiper
9 Channel 1-8 CCW
10 Channel 1-8 CW
11 Main CW
- Allow various functions of the input channels to be set.
- Allows remote control of both channel levels and master level. Either
Pin No
12
13
14
15
Connection (common to all
Connection (common to all
Connection (ground)
29
Function
Main Wiper Connection
Main CCW Connection,+5V
not used
not used
AS8/AS8TC
channels,+5V)
channels, ground)