Chroma (Vbs) Level Adjustment; Y (Vbs) Level Adjustment - Sony DXC-D30WSP Service Manual

3-3-6. Chroma (VBS) Level Adjustment

Equipment: Verctorscope
To be extended: ES-22 board
Preparation:
• GAIN switch/Verctorscope → 75 % CAL
• Adjust the PHASE control on the vectorscope so that
the burst spot is overlapped to the 75 % axis.
• OUTPUT/DL/DCC+ switch/camera side → BARS
Test point: VIDEO OUT connector/camera side
Adjustment Procedure:
1. [for NTSC]
• SERVICE menu "PAGE 7"
→ B-Y
BST :
Note: In case of NTSC, make sure that "R-Y BST"
must be "0".
• Adjust the UP 4 switch or DOWN $ switch so that
burst spot is located at 75 % scale mark on the
vectorscope screen.
[for PAL]
• SERVICE menu "PAGE 7"
→ R-Y
BST :
B-Y BST :
• Adjust "R-Y BST" and "B-Y BST" alternately by UP
4 switch or DOWN $ switch so that burst spot is
located at 75 % scale mark on the vectorscope
screen.
2. Adjust the following controls alternately so that each
beam spot stays inside the reference frame "4".
1RV503 (B-Y LEV)/ES-22 board
1FL502 (PHASE)/ES-22 board
1RV504 (CHROMA VBS LEV)/ ES-22 board
3. Then, perform above procedure item 1 again.
[for NTSC]
M
G
R
Y
L
B
G
C
Y
DXC-D30WS/P(E)/V1
[for PAL]
R
M
G
75%
100%
Y
L
B
G
C
Y

3-3-7. Y (VBS) Level Adjustment

Equipment: Waveform monitor
To be extended: ES-22 board
Preparation: OUTPUT/DL/DCC+ switch/camera side
Test point: VIDEO OUT connector/camera side
Adjustment Procedure
1. [for NTSC]
• SERVICE menu "PAGE 9"
→ SET UP
: ON
MAT DEST : SMPTE
• SERVICE menu "PAGE 5"
→ S-UP LVL :
Adjust the UP 4 switch or DOWN $ switch.
: A = 7.5 ±0.5 IRE (See below
Specification
waveform) ---- NTSC only
[for PAL]
• SERVICE menu "PAGE 9"
→ COMP LVL : 525 (not 700)
2. Adjusting point: 1RV501 (Y LEVEL)/ES-22 board
[for NTSC] B = 100 ±2 IRE
Specification:
[for PAL]
[for NTSC]
FL501
CN501
DL501
DL502
ES-22 BOARD -A SIDE-
→ BARS
B = 700 ±10 mV
[for PAL]
DL503
FL502
DL504
FL503
RV503 RV505 RV501
B-Y LEV C (Y-C) Y (VBS)
TP1 E1
RV502
RV504
C (VBS) Y (Y-C)
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