SoundCraft GB4 - Manual (Page 33)

33 GB4 User Guide
Talkback
The talkback mic input is on the rear connector panel.
The level of the talkback mic signal is controlled by the LEVEL pot (35). The signal is the fed to
all groups, aux 1-2, aux 3-4, aux 5-6 and aux 7-8 using the appropriate buttons (36).
Stereo Returns
There are two stereo return channels. The connectors are 1/4” jacks on the rear connector
panel.
Each has its own level control (37), and each may be routed to the L-R main mix or to groups 1-
2 for Stereo Return 1 or to groups 3-4 for Stereo Return 2 via the appropriate switches (38).
PSU Monitor LEDs
These LEDS (39) confirm the presence of the correct voltage on the +48V and the +/-17V power
rails in the console.
Rear Connector Panel
T/B MIC (3-pin female XLR)
Pin 1 Ground
Pin 2 Signal Hot
Pin 3 Signal Cold
MIX L, R & C OUTPUTS (3-pin male XLRs)
Pin 1 Chassis
Pin 2 Signal Hot
Pin 3 Signal Cold
MIX R GRP 4 GRP 2
GRP 1 GRP 3 MIX L MIX C
T/B MIC
INS INS INS
INS INS INS INS
MTX4
R MNTR
AUX4 MTX3
L
L
R
L
R
REC/ALT
OUT
2 TRK IN
L
R
AUX3 MTX2 AUX2 MTX1 AUX1
R R AUX8 L L AUX7 AUX6 AUX5 STE RTN2 STE RTN1