Carrier Balance Adjustment; Chroma (Vbs) Level Adjustment - Sony DSR-570WS Service Manual

9-3-5. Carrier Balance Adjustment

Equipment: Verctorscope (MAX GAIN)
Preparation:
. OUTPUT/DL/DCC+switch (side panel) → BARS
Test point: VIDEO OUT connector
Adjustment Procedure
1. SERVICE menu "PAGE 7"
→ R-Y
C/B :
B-Y C/B :
2. Move the cursor to R-Y C/B or B-Y C/B with
STATUS/MENU switch, and adjust the beam spot so
that it is in the center of the vectorscope by turning the
MENU dial, then store the data by pushing the MENU
dial.
[for NTSC]
M
G
R
Y
L
100 %
75 %
B
G
C
Y
DSR-570WS/570WSP V1
[for PAL]
R
M
G
75 %
Y
L
B
G
C
Y

9-3-6. Chroma (VBS) Level Adjustment

n
Be sure to use the specified vectorscope which is
conformed to the SET UP 0 function.
Equipment:
Verctorscope
To be extended: ES-26/26P board
Preparation:
. GAIN switch/Verctorscope → 75 % CAL
. Adjust the PHASE control on the vectorscope so that
the burst spot is overlapped with the 75 % axis.
. OUTPUT/DL/DCC+switch (side panel) → BARS
Test point:
VIDEO OUT connector
Adjustment Procedure
1. [for NTSC] • SERVICE menu "PAGE 7"
→ B-Y BST :
n
In case of NTSC, make sure that "R-Y BST" must be
"0".
. Adjust the burst spot so that it is located at 75 %
scale mark on the vectorscope screen by turning the
MENU dial, then store the data by pushing the
MENU dial.
. SERVICE menu "PAGE 7"
[for PAL]
→ R-Y BST :
B-Y BST :
. Adjust "R-Y BST" and "B-Y BST" alternately so
that burst spot is located at 75 % scale mark on the
vectorscope screen by turning the MENU dial, then
store the data by pushing the MENU dial.
2. Adjust the following controls alternately so that each
beam spot stays inside the reference frame "4".
1RV103 (B-Y LEV)/ES-26/26P board
1FL101 (PHASE)/ES-26/26P board
1RV101 (CHROMA VBS LEV)/ ES-26/26P board
3. Then, perform the above procedure item 1 again.
[for NTSC]
M
G
R
Y
L
B
G
C
Y
[for PAL]
R
M
G
75 %
100 %
Y
L
B
G
C
Y
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