Grass Valley Digital Wireless Triax Camera System - Manual (Page 25)

version 9 User’s Guide - Digital Wireless System 25
Audio
Audio/Intercom DIP switch settings (S660-S664):
Switch Setting
SP1 keep always disabled; factory setting
SP2 normally disabled. When enabled, a 1kHz
intercom tone from WCU to WCA is
digitally synthesized for test purposes.
REMOTE not connected; no function
DELAY enable to activate audio/video delay
compensation
ICOM 6dB enabled: nominal i/com input is +6dBu
disabled: nominal i/com input is 0dBu
(recommend position is enabled).
AUD 6dB enabled: nominal audio output is +6dBu
disabled: nominal audio output is 0dBu
AUD DUAL normally disabled. When enabled linear
intercom is achieved. Only use this
setting when a compressor is available!
When disabled, a digital intercom
compressor is activated.
ICOM 4W enabled: 4-wire mode intercom is selected
disabled: 2-wire mode intercom is selected
PRIV.DATA always keep disabled; factory setting.
ISOLATE ICOM when enabled all intercom input and output
signals are isolated
Audio settings
The following are the settings for the audio signals applied
to the rear of the wireless adapter and the side of the camera
head. They can be made in the camera head menu and on the
Audio/Intercom board of the WCU:
Select 1 or 2 audio channels
• The number of audio channels is selected in the systems
menu of the camera head. In the INSTALL menu go to
the Audio submenu where you can select either 1 or 2.
Menu path:
Install / Audio / Audio Mode
Select audio gain mode
• The audio gain mode is selected in the systems menu
of the camera head. In the INSTALL menu go to the
Audio submenu where you can select whether Gain
Control is LOCAL (under VF menu control) or EXTERNAL
(under MCP control or resistor chain control in the
WCU)
Menu path:
Install / Audio / Audio Gain Mode
TRIAX 1 OK
CAM LOCK
ON
ON AIR
MAINS
I
0
OFF
CABLE
OPEN
EXT REF
SC
SC/H
FRONT
PORCH
CCU
POWER GENLOCK
VIDEO
TRIAX 2 OK
PC OK
TRIAX 1 SELECTED
TRIAX 2 SELECTED
VIDEO CHANNEL
VIDEO PARAMS
DATA CHANNEL
CAMERA
DATA
BOARD TRIAX
FREEZE
FREE RUN
COARSE
FINE
AUDIO
I/COM
Audio/Intercom Board
K
12 S664
K
12 S663
K
12 S662
K
12 S661
K
12 S660
MN600
C0900 C0910
MN630
P3
Disable Enable
SP1
SP2
ICOM 6dB
AUD 6dB
Remote
Delay
AUD DUAL
ICOM 4W
PRIV. DATA
ISOL. ICOM
Two-wire
balance
Intercom
output
volume
Follow the Disable and Enable positions shown in this
drawing. Ignore the screening on the board itself.
Select audio source
• The audio source is selected in the systems menu of the
camera head. In the INSTALL menu go to the Audio
submenu where you can select the source.
Menu path:
Install / Audio / Audio Source
Select audio gain
• The audio gain is set in the system menu of the camera
head. In the INSTALL menu go to the Audio submenu
where you can set the gain for both channels.
Menu path:
Install / Audio / Audio 1(2) Gain
Select audio output level and delay
• Ensure power is disconnected.
• Remove the board marked Audio/Intercom from the
WCU.
• Locate the AUD 6dB DIP-switch on the board.
• Use the table below to set the audio output level to
enable (+6dB) or disable (0dB).
• Locate the DELAY DIP-switch on the board.
• Use the table below to enable the Delay function. (The
audio delay function delays the audio signal so that it
is synchronised with the video signal.)