Grass Valley LDK 500 - Manual (Page 68)

Operating instructions | Triax adapter controls 4-29
Audio channel 1
The microphone for channel 1 is connected either to the socket at the front-right of
the camera or to the Mic 1 socket on the triax adapter. A 3-position switch (5) activates
the socket at the front-right or the connector at the rear. The third position selects the
rear socket with a phantom power supply (48V).
Audio channel 2
The microphone for the second audio channel is connected to the Mic 2 socket on the
triax adapter. A 2-position switch (8) selects a phantom power supply (48V) for the
second audio microphone.
4.12.4 Intercom
Three intercom channels – production (Prod), program sound (Prog) and engineering
(Eng) – are sent from the Base Station to the camera operator's headset. The camera
operator's intercom microphone signal is sent to the Base Station. A tracker can also
connect a headset to the intercom system to receive all of the channels from the Base
Station and the camera operator's microphone signal as well. The tracker's
microphone signal is passed to the camera operator and to the Base Station.
The Intercom section of the Install menu contains various settings for all these
channels. Signals for left and right headset muffs and sidetone levels can be selected.
Intercom microphone amplification levels, phantom power supply and microphone on/
off switches are also available in this menu.
Additional controls are found on the back of the adapter.
Intercom microphone routing switch
This 3-position switch (1) routes the camera operator's intercom microphone signal to
engineering (Eng) or production (Prod), or turns off the intercom. Use the VTR Start
button at the front of the camera, or the VTR button on the lens, to send the camera
operator's intercom microphone signal to production, regardless of the position of this
switch.
Production volume control selection
Use this 2-position switch (2) to control the volume of the production signal in the
intercom either at the front of the camera or at the rear of the adapter.
Intercom headset volume controls
• Prod - adjusts the volume of the production signal to the camera operator's headset
when selection switch (2) is in the REAR position.
• Prog - adjusts the volume of the programme signal to the camera operator's
headset.
• Eng - adjusts the volume of the engineering intercom signal to the camera
operator's headset.