Sony DSR-570WS Service Manual page 212

9-3-4. Y/SYNC/R-Y/B-Y Level Adjustment
Equipment: Oscilloscope
To be extended: ES-26/26P board
Preparation:
. OUTPUT/DL/DCC+switch (side panel) → BARS
. S401/ES-26/26P setting : → CCZ ON
. Measure the levels at TP393, TP395, and TP397 after
the termination with 75 Z resistor.
Trigger:
HD (TP349/extension board)
Adjustment Procedure
1. Select "PAGE 9" of Advanced menu, set
"16:9/4:3" to "16:9".
2. Select "PAGE 12" of SERVICE menu, make sure that
TEST is "OFF", and R-Y and B-Y mode are all "ON".
3. SERVICE menu "PAGE 5"
→ W Y
LEV :
W R-Y LEV :
W B-Y LEV :
SYNC LEV :
4. Perform adjustment by turning the MENU dial, then
store the data by pushing the MENU dial.
5. Select "PAGE 9" of Advanced menu, and set "16:9/
4:3" to "4:3".
6. SERVICE menu "PAGE 5"
→ Y
LEV :
R-Y LEV :
B-Y LEV :
SYNC LEV :
SET UP LEV :
7. Adjust the following items by UP
switch.
n
In case of Y LEV for NTSC model, perform the
adjustment as follows.
1 Move the cursor to Y LEV.
2 Adjust the "A" of Y LEV level.
3 Move the cursor to SETUP LEV,
and adjust it so that F is 54 ± 5 mV.
4 Repeat the steps 1 through 3 several times.
8. Perform adjustment by turning the MENU dial, then
store the data by pushing the MENU dial.
9-8
Item
W Y LEV
Y LEV
SYNC LEV
W R-Y LEV
R-Y LEV
W B-Y LEV
B-Y LEV
switch or DOWN
n
After adjustment, set the S401 switch to NORM.
Extension board (GND : TP394/ES-26/26P board)
Test Point
TP393
TP393
TP393
(NTSC)
A
B
F
TP395
TP395
TP397
TP397
Specification
NTSC : A = 714 ±10 mV
F = 54 ±5 mV
: A = 700 ±10 mV
PAL
NTSC : A = 714 ±10 mV
F = 54 ±5 mV
: A = 700 ±10 mV
PAL
NTSC : B = 286 ±5 mV
: B = 300 ±5 mV
PAL
(PAL)
A
B
NTSC : 700 ±20 mV
: 525 ±20 mV
PAL
NTSC : 700 ±20 mV
: 525 ±20 mV
PAL
C
NTSC : 700 ±20 mV
: 525 ±20 mV
PAL
NTSC : 700 ±20 mV
: 525 ±20 mV
PAL
D
DSR-570WS/570WSP V1