4-3
CCU-TX7 (E)/V1
4-2. Video Signal System Adjustment
4-2-1. Sub-carrier Frequency Check
Note :
Check that the GEN LOCK IN connector of CCU-
TX7/TX7P rear panel is no signal.
Before adjustment, warm up the frequency counter
more than 30 minutes.
Equipment
:
Oscilloscope, Frequency counter
To be extended :
ES-20 board
Adjustment Procedure :
1. Connect the oscilloscope and the frequency counter as
follows.
2. Test point
:
TP1 (GND: E1) /ES-20 board
Adjusting point
:
1
RV4 (SC FREQ.)/ES-20 board
Specification
:
[For NTSC] 3,579,545
±
2 Hz
[For PAL]
4,433,619
±
2 Hz
4-2-2. CAM H Phase Adjustment
Equipment
:
Oscilloscope (CHOP mode)
To be extended :
ES-20 board
Preparation :
.
S800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board
→
"Y/R-Y/B-Y" (Center position)
Test point
:
CH1 pin 94/extension board
CH2 pin 47/extension board
Adjusting point :
1
RV1 (CAM H PHASE) /ES-20 board
Specification
:
T = 0
±
0.05
µ
s
T
50%
50%
CH1
CH2
ES-20
ES-20 Board
(A SIDE)
RV511
R DC BAL
R MAT BAL
RV509
R-Y GAIN
RV502
R-Y BLK BAL
RV501
G MAT BAL2
RV506
B WHT BAL
RV505
R WHT BAL
RV500
RV507
G MAT BAL1
RV504
B-Y GAIN ADJ
RV503
B-Y BLK BAL
B MAT BAL
RV512
RV1000
LEVEL
RV514
B DC BAL
RV513
B LEVEL
RV510
R LEVEL
G LEVEL
RV7
H PHASE
RV6
SC PHASE
S1
S3
SC 0/180
S800
OUTPUT 1
SELECT
OUTPUT 2
SELECT
S4
RV515
Y CLP LEVEL
RV1
CAM H PHASE
RV813
VBS LEVEL
RV809
Q(U)CAL
RV800
Y SETUP LEVEL
(NTSC ONLY)
RV804
RV811
R-Y LEVEL
RV805
I(V)CAL
RV806
BURST
LEVEL
RV807
BURST
PHASE
RV808
(U)LEV
RV802
RV812
B-Y LEVEL
RV803
SYNC LEVEL (VBS)
Y LEVEL (VBS)
Y LEVEL(COMP)
RV801
RV1001
S1000
SEQ ON
S2
S801
CHROMA LEVEL
RV810
SYNC WIDTH
RV4
SC FREQUENCY
RV5
SC-H PHASE
SYNC PHASE
OUT PUT 1
SC
H
OUT PUT 2
R/G/B
Y/R-Y/B-Y
Y/C
0
180
°
R/G/B
Y/R-Y/B-Y
Y/C
RV3
RV2
RV508
PHASE
TP503
TP502
TP507
TP506
TP505
TP15
TP17
TP501
TP1
TP7
TP5
TP4
TP2
TP3
E16
E3
E1
ADJ
POSITION
SYNC LEVEL(COMP)
