Chroma (Vbs) Level Adjustment - Sony DXC-D35 Service Manual

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

n
Use the vectorscope conforming to setup "7.5 IRE". (for
NTSC)
Equipment: Verctorscope
To be extended: ES-32 board (for DXC-D35/D35P)
ES-33 board (for DXC-D35WS/D35WSP)
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: BARS
Test point:
VIDEO OUT connector
Adjustment Procedure
1. [for NTSC]
SERVICE menu "PAGE 7"
B-Y BST
Adjust by the UP switch or DOWN
burst spot is located at 75 % scale mark on the vector-
scope screen.
(In case of NTSC, make sure that "R-Y BST" must be
"0".)
[for PAL]
SERVICE menu "PAGE 7"
R-Y BST
B-Y BST
Adjust "R-Y BST" and "B-Y BST" alternately by UP
switch or DOWN
located at 75 % scale mark on the vectorscope screen.
DXC-D35/D35WS(UC)
DXC-D35P/D35WSP(CE) V1
switch so that
switch so that burst spot is
2. Adjust the adjusting volume controls below to enter
the beam spot of each color within the area "4"
specified for each color on the vectorscope screen.
1 RV503 (B-Y LEV)
/ES-32 board (DXC-D35/D35P)
/ES-33 board (DXC-D35WS/D35WSP)
1 FL502 (PHASE)
/ES-32 board (DXC-D35/D35P)
/ES-33 board (DXC-D35WS/D35WSP)
1 RV504 (CHROAMA VBS LEV)
/ES-32 board (DXC-D35/D35P)
/ES-33 board (DXC-D35WS/D35WSP)
3. Then, perform above procedure item 1 again
[for NTSC]
M
G
R
Y
L
B
G
C
Y
B
A
1
FL502
2
3
4
CN501
5
6
ES-32 board (A side) (DXC-D35/D35P)
ES-33 board (A side) (DXC-D35WS/D35WSP)
3-3. Camera Adjustment
[for PAL]
R
M
G
75%
100%
Y
L
B
G
C
Y
C
D
RV501
RV502
RV505
RV504
RV503
TP501
E501
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