Read Panasonic WV-CL270 / WV-CL274E Service Manual Simplified online
– 6 –
(5.1). OB Level Adjustment
Test Point:
CN5 (Video Output Connector)Video Board
8
Connect the terminated Osilloscope with 75
Ω
to CN5.
8
Adjust data with the ARROW keys so that the Pedestal
level becomes 50 mV ± 10 mV as shown in Fig. 4-4.
level becomes 50 mV ± 10 mV as shown in Fig. 4-4.
Fig. 4-4
8
Press the ENTER key for next adjustment.
(5.2). Video Output Gain Adjustment
Test Point:
CN5 (Video Output Connector)Video Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to CN5.
8
Adjust data with the ARROW keys so that the Video sig-
nal level becomes 700 mV ± 50 mV as shown in Fig. 4-5.
nal level becomes 700 mV ± 50 mV as shown in Fig. 4-5.
700 mV
±
50 mV
50 mV
±
10 mV
Fig. 4-5
8
Press the ENTER key for next adjustment.
(5.3). OB Confirmation (Don't Change Data)
8
Press the ENTER key for next adjustment.
(6.1). Burst Level Adjustment
Test Point:
CN5 (Video Output Connector)Video Board
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 CN5.
8
Adjust data with the ARROW keys so that the Burst level
becomes 300 mV ± 10 mV as shown in Fig. 4-6
becomes 300 mV ± 10 mV as shown in Fig. 4-6
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. 4-7.
phase becomes 135° ± 1° as shown in Fig. 4-7.
8
Change the Mode Switch of the Vectorscope from the
NTSC mode to the PAL mode.
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.4-7.
phase becomes 90° ± 2° as shown in Fig.4-7.
8
Press the ENTER key for next adjustment.
300 mV
±
10 mV
Fig. 4-6
(6.2). Burst Level Adjustment
Test Point:
CN5 (Video Output Connector)Video Board
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 CN5.
8
Adjust data with the ARROW keys so that the Burst level
becomes 300 mV ± 10 mV as shown in Fig. 4-6.
becomes 300 mV ± 10 mV as shown in Fig. 4-6.
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. 4-7.
phase becomes 135° ± 1° as shown in Fig. 4-7.
8
Change the Mode Switch of the Vectorscope from the
NTSC mode to the PAL mode.
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.4-7.
phase becomes 90° ± 2° as shown in Fig.4-7.
8
Press the ENTER key for next adjustment.
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