Grass Valley EFP1685 - Manuel (Page 172)

172 Chapter 3 - 1685/1686 Channel Control Unit
CCU1685
B1685902AC
September 2000
THOMSON EFP1685/CCU1686
User manual
3.1.2 - Front panel
SHORT CABLE
SYNC. FAIL.
SYNC. OUT
RETURN
VIDEO IN
R OUT
G OUT
B OUT
PRG
ENG
CAM
PROD
CALL
CAM
ENG
CAM
OFF
TRIAX PAL
ENCODER
STEREO
INTERCOM
VIDEO 4-2-2
ENCODER
fl H
fl S C
fl S C / H
0
G E N
L O C K
R E M O T E
C H R O M A
L E V E L
APCM CAMERA
POWER
CCU
POWER
MAINS
RECTIFIER
O N A I R
1 2
O N L I N E
S T A T U S
MCP
CCU
NUMBER
RCP
1
AUX
C A M B U S Y
R C P M C P
+ 1 2 V - 3 0 V
O V E R L O A D C A B L E O P E N
I m i n C A M . H E A D
L O W V O L T
+ 2 3 0 V D C
+ 1 2 V + 3 0 0 V
O N
F A I L
I
O
M A I N S
SHORT CABLE
SYNC. FAIL.
SYNC. OUT
RETURN
VIDEO IN
R OUT
G OUT
B OUT
TRIAX
CAM
ENG
CAM
OFF
STEREO
INTERCOM
CALL
PRG
ENG
CAM
PROD
Indication of short connection ca-
ble between the camera head and
the channel control unit.
With a long cable (>300m typeB),
the TelePrompter video is no lon-
ger available on the camera head.
No signal obtained from channel V
indication.
This may be due to:
• power off: the camera head,
• disconnection of the camera
head
↔ channel control unit in-
terconnection cable.
Test Point for sync signal extracted
from V video (V p/p = 9 V Zout =
300 0hms).
Test Point for outside video signal
applied to the back of the channel
control unit (Zout = 75 Ohms).
R, G, B video signal Test Points,
non-synchronized demodulated
(V p/p = 0.7 V/75 Ohms).
Ground test point
The indicator light indicates a call
from the Cameraman.
The CALL pushbutton enables the
channel control operator to draw
the Cameraman’s attention.
When this switch is on:
• CAM: the Channel Control Unit
Operator is connected to the
Cameraman,
• OFF: this is the normal opera-
ting position. The Channel
Control Unit Operator is isola-
ted from the Cameraman, the
Producer and the Technical
Control Room,
• ENG-CAM: the Channel Con-
trol Unit Operator is connected
to the Technical Control Room
and the Cameraman.
Channel control unit operator
headset audio level adjustment.
• Righthand earphone: "Pro-
gram" Sound (PRG) + "Techni-
cal control room" sound (ENG).
• Lefthand earphone: "Camera-
man" sound (CAM) + "Produ-
cer" (PROD) sound.
Connection of a microphone-
headset for the channel control
operator. The headset may be dy-
namic or static (see Chapter 2 -
"Installation").