Y/R-Y/B-Y Clp Level Adjustment; Y/Sync/R-Y/B-Y Level Adjustment - Sony DSR-300 Service Manual

7-3-4. Y/R-Y/B-Y CLP Level Adjustment

Equipment:
Oscilloscope
To be extended: ES-21 board
Preparation: OUTPUT/DL/DCC+ switch/camera
side → BARS
. Solder SL401 on the ES-21 board.
. Measure the levels at TP193, TP195, and TP197 after
the termination with 75 Z resistor.
Trigger: HD (TP149/extension board)
Adjustment Procedure
1. Select "PAGE 13" of SERVICE menu. Make sure that
TEST is "OFF," and R-Y and B-Y modes are "ON."
2. SERVICE menu "PAGE 6"
→ Y
CLP:
R-Y CLP:
B-Y CLP:
3. Perform adjustment by turning the MENU dial, then
store the data by pushing the MENU dial.
Note: In case of Y CLP for NTSC model, perform
the following adjustments:
1 Select "PAGE 9" of SERVICE menu, and set the
"SETUP" to "OFF."
2 Select "PAGE 6" of SERVICE menu, and move the
cursor to Y CLP.
3 Adjustment: A = 0 ±5 mV
4 Select "PAGE 9" of SERVICE menu, and set the
"SETUP" to "ON."
5 And return to "PAGE 6."
Extension board (GND: TP194)/ES-21 board
Item Test Point
Y CLP TP193
(NTSC)
A
R-Y CLP TP195
B
B-Y CLP TP197
C
Note: After adjustment, remove the solder from SL-401.
7-6
Specification
A = 0 ±5 mV
(PAL)
A
B = 0 ±5 mV
C = 0 ±5 mV

7-3-5. Y/SYNC/R-Y/B-Y Level Adjustment

Equipment: Oscilloscope
To be extended: ES-21 board
Preparation:
OUTPUT/DL/DCC+ switch/camera
side → BARS
. Solder SL401 on the ES-21 board.
. Measure the levels at TP193, TP195, and TP197 after
the termination with 75 Z resistor.
Trigger:
HD (TP149/extension board)
Adjustment Procedure
1. Select "PAGE 13" of SERVICE menu. Make sure that
TEST is "OFF," and R-Y and B-Y modes are "ON."
2. SERVICE menu "PAGE 5"
→ Y
LEV:
R-Y LEV:
B-Y LEV:
SYNC LEV:
S-UP LEV:
3. Perform adjustment by turning the MENU dial, then
store the data by pushing the MENU dial.
Note: In case of Y LEV for NTSC model, perform
the following adjustments:
1 Move the cursor to Y LEV.
2 Adjust the "A" of Y LEV level.
3 Move the cursor to S-UP LEV, and adjust the "F"
of setup level.
4 Repeat steps 1 through 3 several times.
Extension board (GND: TP194)/ES-21 board
Item Test Point
Y LEV TP193
SYNC LEV TP193
(NTSC)
A
B
F
R-Y LEV TP195
B-Y LEV TP197
Note: After adjustment, remove the solder from SL-401.
Specification
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: 756 ± 20 mV
525 ± 20 mV
PAL:
C
NTSC: 756 ± 20 mV
525 ± 20 mV
PAL:
D
DSR-300/P(E)/V1