Y Out (Comp) Level Adjustment; Y Out (Vbs) Level Adjustment - Sony CCU-TX7 Service Manual

4-2-7. Y OUT (COMP) Level Adjustment

Equipment : Waveform monitor
To be extended : ES-20 board
Preparation :
. Select the BARS mode on the RCP-TX7 or COU-TX7.
. S800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board
→ "Y/R-Y/B-Y" (Center position)
Test point : G/Y/Y 1 OUT connector /CCU rear panel
Adjustment Procedure :
ES-20 board [For NTSC]
Adjusting point
Y Level Adjustment 1RV802
1RV801
SYNC Level Adjustment
1RV800
SET-UP Level Adjustment
ES-20 board [For PAL]
Adjusting point
1RV802
Y Level Adjustment
SYNC Level Adjustment 1RV801
[For NTSC]
A
B
C
SYNC WIDTH
RV3
ES-20
PHASE RV2
RV7
H PHASE
H
SYNC PHASE
SC RV6
SC PHASE
TP1
RV4
0
SC FREQUENCY
180°
RV5
OUT PUT 1
SC-H PHASE
R/G/B
Y/R-Y/B-Y
E1
Y/C
OUT PUT 2
G MAT BAL2
R/G/B
S1
RV506
Y/R-Y/B-Y
Y/C
TP501
RV508
RV507
G MAT BAL1
G LEVEL
RV511
R DC BAL
RV510
R LEVEL
RV514
B DC BAL RV513
B LEVEL
4-6
Specifications
A = 100 ± 2 IRE
B = 40 ± 1 IRE
C = 7.5 ± 1 IRE
Specifications
A = 700 ± 10 mV
B = 300 ± 5 mV
[For PAL]
A
B
Y LEVEL (VBS)
SYNC LEVEL (VBS)
RV803
RV800 RV801
SYNC LEVEL(COMP)
Y SETUP LEVEL
(NTSC ONLY)
B-Y LEVEL
B WHT BAL R WHT BAL
RV505 RV500
TP502 R-Y BLK BAL
RV501
R MAT BAL
RV509
TP503 R-Y GAIN ADJ
RV502
B MAT BAL
RV512 RV1000
RV504 RV503
B-Y GAIN ADJ B-Y BLK BAL

4-2-8. Y OUT (VBS) Level Adjustment

Equipment
To be extended : ES-20 board
Preparation :
. Select the BARS mode on the RCP-TX7 or COU-TX7.
. S800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board → "Y/C"
Test point : G/Y/Y 1 OUT connector/CCU rear panel
Adjustment Procedure :
ES-20 board [For NTSC]
Y Level Adjustment
SYNC Level Adjustment
ES-20 board [For PAL]
Y Level Adjustment
SYNC Level Adjustment
[For NTSC]
A
B
RV804
CHROMA LEVEL
RV802
RV810
E3
Y LEVEL(COMP)
RV812
TP7
TP5
POSITION TP4
TP2
TP3
LEVEL
ES-20 Board
(A SIDE)
: Waveform monitor
Adjusting point Specifications
A = 100 ± 2 IRE
1RV804
B = 40 ± 1 IRE
1RV803
Adjusting point Specifications
A = 700 ± 10 mV
1RV804
B = 300 ± 5 mV
1RV803
[For PAL]
A
B
CCU-TX7 (E)/V1