Carrier Balance Adjustment; Chroma (Vbs) Level Adjustment - Sony DSR-300 Service Manual

7-3-6. Carrier Balance Adjustment

Equipment:
Verctorscope (MAX GAIN)
Preparation: OUTPUT/DL/DCC+ switch/camera
side → BARS
Test point: VIDEO OUT connector/camera side
Adjustment Procedure
1. SERVICE menu "PAGE 7"
→ R-Y C/B: 
 Adjust alternately
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-300/P(E)/V1
[for PAL]
R
M
G
75 %
Y
L
B
G
C
Y

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

Note: Be sure to use the specified vectorscope which
is conformed to the SET UP 0 function.
Equipment: Verctorscope
To be extended: ES-21 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" is "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.
for PAL
. SERVICE menu "PAGE 7"
→ 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-21 board
1FL101 (PHASE)/ES-21 board
1RV101 (CHROMA VBS LEV)/ ES-21 board
3. Perform above step 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
7-7