4-23
CCU-TX7 (E)/V1
4-5. RETURN VIDEO Cable Compensation
System Adjustment
4-5-1. Return Video Carrier Frequency
Adjustment
Equipment
:
Spectrum analyzer
To be extended :
CT-181 board
Preparation :
.
Input 10 STEP signal (sub-carrier : OFF) of video signal
generator to RETURN-1 connector (75
Z
termination, 1.0
V p-p) on the CCU-TX7/TX7P rear panel.
Test point
:
TP21 (GND: E12)/CT-181 board
Adjusting point :
1
CV1 (RET FREQ)/CT-181 board
Specification
:
69.000
±
0.005 MHz
4-5-2. Return Video Deviation Adjustment
Equipment
:
Spectrum analyzer
To be extended :
CT-181 board
Preparation :
.
Input 10 STEP signal (sub-carrier : OFF) of video signal
generator to RETURN-1 connector (75
Z
termination, 1.0
V p-p) on the CCU-TX7/TX7P rear panel.
Test point
:
TP21 (GND: E12)/CT-181 board
Adjusting point :
1
RV20 (RET DEV)/CT-181 board
Specification
:
T = 2.000
±
0.005 MHz
Note :
Performe the adjustment of 4-5-1. "Return Video
Carrier Frequency Adjustment" when the SYNC
portion is moved during the adjustment.
SYNC
69.0MHz
CENT FREQ: 69.0MHz
FFEQ SPAN: 5.0MHz
69.0MHz
CENT FREQ: 69.0MHz
FFEQ SPAN: 5.0MHz
T
CT-181
MIC GAIN
PANEL
R TALLY
CONTACT
POWER
DC24V
TTL
CT-181 Board
(A SIDE)
G TALLY
CONTACT
POWER
DC24V
REMOTE
LOCAL
CONTROL MODE
NORMAL
SLAVE
TTL
CH-1
CH-2
NORM
MIN
MAX
NORM
MIN
MAX
R TALLY
S1002
SW1001
MIC 2 GAIN
MIC 1 GAIN
SW1000
S1004
S2002
LV3
LV2
RV20
RET DIV
RV19
RET MIX
RV22
RF AGC DLY
CV1
RET FREQ
RV21
RV23
PROMPT LEVEL
PROMPT TUNE
PROMPT FREQ
S1000
S2012
S2014
S2013
CONTACT
CONTACT
POWER
POWER
DC24V
DC24V
TTL
TTL
R TALLY
G TALLY
G TALLY
NORM
SLAVE
CONT MODE
S1001
PANEL
SELECT
RS232C-2
IF BOARD
RX
TX
PROMPT
S2011
LOCAL REMOTE
CN7
CN2
CN3
CN8
PROMPT RF RX
PROMPT RF TX
RET RF
PROMPT RF
PROMPT DEV
TP2006
TP1000
E1000
E1001
E12
E13
E11
E16
TP1002
TP21
TP22
TP23
TP1001
TP2000
TP20
TP2005
E2000
TP2003 TP2002 TP2004 TP2001
