Panasonic WV-CW370 Service Manual page 13

Fig. 5-3
8 Press the ENTER key for next adjustment.
8 Adjust data with the ARROW keys so that the Video sig-
nal level becomes 700 mV ± 50 mV as shown in Fig. 5-3.
8 Press the ENTER key for next adjustment.
(5). Pedestal Adjustment
Test Point: Video Output Cable
8 Connect the terminated Oscilloscope with 75 Ω to the
Video Output Cable.
8 Adjust data with the ARROW keys so that the Pedestal
level becomes 50 mV ± 5 mV as shown in Fig. 5-4.
Fig. 5-4
8 Press the ENTER key for next adjustment.
(6.1). Burst Level Adjustment
Test Point: Video Output Cable
8 Keep the Colour Temperature at 3 200°K.
8 Aim the Camera at the Logarithmic Gray Scale Chart.
8 Connect the terminated Oscilloscope with 75 Ω to the
Video Output Cable.
8 Adjust data with the ARROW keys so that the Burst level
becomes 300 mV ± 10 mV as shown in Fig. 5-5.
8 Set the Mode Switch of the Vectorscope to NTSC mode.
8 Adjust data with the ARROW Keys so that the Burst
phase becomes 135° ± 1° as shown in Fig. 5-6.
8 Change the Mode Switch of the Vectorscope from the
NTSC mode to the PAL mode.
8 Adjust data with the ARROW Keys so that the Burst
phase becomes 90° ± 2° as shown in Fig.5-6.
8 Press the ENTER key for next adjustment.
700 mV ± 50 mV
50 mV ± 5 mV
dø
10°
0°
10°
2-7
(6.2). Burst Level Adjustment
Test Point: Video Output Cable
8 Keep the Colour Temperature at 3 200°K.
8 Aim the Camera at the Logarithmic Gray Scale Chart.
8 Connect the terminated Oscilloscope with 75 Ω to the
Video Output Cable.
8 Adjust data with the ARROW keys so that the Burst level
becomes 300 mV ± 10 mV as shown in Fig. 5-5.
8 Set the Mode Switch of the Vectorscope to NTSC mode.
8 Adjust data with the ARROW Keys so that the Burst
phase becomes 135° ± 1° as shown in Fig. 5-6.
8 Change the Mode Switch of the Vectorscope from the
NTSC mode to the PAL mode.
8 Adjust data with the ARROW Keys so that the Burst
phase becomes 90° ± 2° as shown in Fig.5-6.
8 Press the ENTER key for next adjustment.
Fig. 5-5
NTSC mode
cy
g R
M
G
V
135° ± 1°
20%
75%
Y
L
100%
dG
b
(90° ± 2°)
B
yl
20%
dG
C
G Y mg
r
Fig. 5-6
(6.3). Burst Level Adjustment
Test Point: Video Output Cable
8 Keep the Colour Temperature at 3 200°K.
8 Aim the Camera at the Logarithmic Gray Scale Chart.
8 Connect the terminated Oscilloscope with 75 Ω to the
Video Output Cable.
8 Adjust data with the ARROW keys so that the Burst level
becomes 300 mV ± 10 mV as shown in Fig. 5-7.
8 Set the Mode Switch of the Vectorscope to NTSC mode.
8 Adjust data with the ARROW Keys so that the Burst
phase becomes 135° ± 1° as shown in Fig. 5-8.
8 Change the Mode Switch of the Vectorscope from the
NTSC mode to the PAL mode.
8 Adjust data with the ARROW Keys so that the Burst
phase becomes 90° ± 2° as shown in Fig.5-8.
8 Press the ENTER key for next adjustment.
300 mV ± 10 mV
PAL mode
cy
g R
V
dø
20%
75%
Y
(135° ± 1°)
L
100%
dG
10°
U
0°
90° ± 2°
10°
yl
20%
dG
C
G Y mg
r
M
G
b
U
B