Read Panasonic WV-CP240EX Service Manual Simplified online
5
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. 5-4.
level becomes 50 mV ± 10 mV as shown in Fig. 5-4.
Fig. 5-4
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 3 200° 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 Video sig-
nal level becomes 700 mV ± 50 mV as shown in Fig. 5-5.
nal level becomes 700 mV ± 50 mV as shown in Fig. 5-5.
700 mV
±
50 mV
50 mV
±
10 mV
Fig. 5-5
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. Burst Level Adjustment
8
Repeat adjustment from steps 6.1 to 6.4 until Burst level,
phase and Red vector phase are adjusted to proper posi-
tion as shown in Fig.5-6, 5-7, 5-8 and Table 5-2.
phase and Red vector phase are adjusted to proper posi-
tion as shown in Fig.5-6, 5-7, 5-8 and Table 5-2.
8
First, adjust the Burst Level and Phase according to fol-
lowing formula.
lowing formula.
DATA of 6.1 = DATA of 6.3
DATA of 6.2 = DATA of 6.4
DATA of 6.2 = DATA of 6.4
Note the DATA at each adjustment step.
8
Then adjust the Burst Level according to following formu-
la.
la.
DATA of 6.1
/
Current DATA –
α
DATA of 6.2
/
Current DATA +
α
DATA of 6.3
/
Current DATA –
α
DATA of 6.4
/
Current DATA +
α
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
Set the Mode Switch of the Vectorscope to NTSC mode.
8
Adjust data with the ARROW keys so that the Burst level
and phase are adjusted to proper position as shown in
Fig. 5-6 and Fig. 5-7.
and phase are adjusted to proper position as shown in
Fig. 5-6 and Fig. 5-7.
8
Note the DATA for step 6.3.
8
Press the ENTER key for next adjustment
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
and phase are adjusted to proper position as shown in
Fig. 5-6 and Fig. 5-7.
and phase are adjusted to proper position as shown in
Fig. 5-6 and Fig. 5-7.
8
Note the DATA for step 6.4.
8
Press the ENTER key for next adjustment.
6.3. 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 data
becomes same value of adjustment step 6.1.
becomes same value of adjustment step 6.1.
8
Press the ENTER key for next adjustment.
6.4. 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.
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