4-5
CCU-TX7 (E)/V1
4-2-6. Y CLAMP Adjustment
Equipment
:
Oscilloscope
To be extended :
ES-20 board
Preparation :
.
Select the BARS mode on the RCP-TX7 or COU-TX7.
Test point
:
TP507 (GND : E1)/ES-20 board
Adjusting point :
1
RV515 (Y CLAMP)/ES-20 board
Specification
:
A = 0
±
5 mV
4-2-5. INT SC Phase Adjustment
Note :
The SC-H phase measurement equipment (Tektronix :
Waveform monitor 1765 or equivalent) is used for
this adjustment. In case of using another measurement
equipment, read its instruction manual carefully and
then perform the following adjustment.
Equipment
:
SC-H phase measurement equipment
To be extended :
ES-20 board
Preparation :
.
Set the mode of Textronix 1765 to "SC-H" mode.
.
Make sure that the video signal is not inputted to the GEN
LOCK connector on the CCU-TX7/TX7P rear panel.
Test point
:
VBS 1 OUT/CCU rear panel
Adjustment Procedure :
.
Adujst
1
RV5 (SC-H PHASE)/ES-20 board so that the
luminance line of BURST (SC) is the same as following
figure.
Note :
After this adjustment is completed, set the mode of
Tektronix Waveform monitor 1765 to "WFM" mode.
A
[For NTSC]
[For PAL]
A
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)
[For NTSC]
[For PAL]
Cy
mg
U
B
b
M
G
cy
V
75%
100%
R
R
g
Y
L
yl
G
B
Y
L
G
Cy
g
M
G
r
