Panasonic WV-CL270 / WV-CL274E Simplified Service Manual ▷ View 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.
– 7 –
cy
g
M
G
Y
L
yl
B
b
G
C
Y
dG
10
°
0
°
10
°
dø
100%
75%
R
V
U
mg
r
20%
20%
dG
cy
g
M
G
Y
L
yl
B
b
G
C
Y
dG
10
°
0
°
10
°
dø
100%
75%
R
V
U
mg
r
20%
20%
dG
135
°
±
1
°
(90
°
±
2
°
)
(135
°
±
1
°
)
90
°
±
2
°
PAL mode
NTSC mode
Fig. 4-7
(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 Burst level
becomes 300 mV ± 10 mV as shown in Fig. 4-8.
becomes 300 mV ± 10 mV as shown in Fig. 4-8.
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. 4-9.
phase becomes 135° ± 1° as shown in Fig. 4-9.
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.4-9.
phase becomes 90° ± 2° as shown in Fig.4-9.
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.
8
Adjust data with the ARROW keys so that the Burst level
becomes 300 mV ± 10 mV as shown in Fig. 4-8.
becomes 300 mV ± 10 mV as shown in Fig. 4-8.
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. 4-9.
phase becomes 135° ± 1° as shown in Fig. 4-9.
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.4-9.
phase becomes 90° ± 2° as shown in Fig.4-9.
8
Press the ENTER key.
8
Select the item "6.1. BURST LEVEL" with the ROLL
DOWN key and press the ENTER key.
DOWN key and press the ENTER key.
8
Repeat adjustment steps (6.1) to (6.4) until Burst level
and phase are adjusted to proper position as shown in
Fig. 4-6 to Fig.4-9.
and phase are adjusted to proper position as shown in
Fig. 4-6 to Fig.4-9.
8
Press the ENTER key for next adjustment.
300 mV
±
10 mV
Fig. 4-8
cy
g
M
G
Y
L
yl
B
b
G
C
Y
dG
10
°
0
°
10
°
dø
100%
75%
R
V
U
mg
r
20%
20%
dG
cy
g
M
G
Y
L
yl
B
b
G
C
Y
dG
10
°
0
°
10
°
dø
100%
75%
R
V
U
mg
r
20%
20%
dG
135
°
±
1
°
(135
°
±
1
°
)
(90
°
±
2
°
)
90
°
±
2
°
NTSC mode
PAL mode
Fig. 4-9
(7.1). 3 200ºK R Gain Adjustment
Test Point:
CN5 (Video Output Connector)Video Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Colour Chip Chart.
8
Adjust data with the ARROW keys so that the Red gain
becomes 220 % ± 5 %.
becomes 220 % ± 5 %.
8
Press the ENTER key for next adjustment.
Note: Chrominance phase and gain are adjusted to proper
position as shown in Fig. 4-10 and Table 4-2.
– 8 –
(7.2). 3 200ºK B 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 Colour Chip Chart.
8
Adjust data with the ARROW keys so that the Yellow gain
becomes 100 % ± 5 %.
becomes 100 % ± 5 %.
8
Press the ENTER key for next adjustment.
Note: Chrominance phase and gain are adjusted to proper
position as shown in Fig. 4-10 and Table 4-2.
(7.3). 3 200ºK Phase Adjustment
Test Point:
CN5 (Video Output Connector)Video Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Colour Chip Chart.
8
Adjust data with the ARROW keys so that the Red vector
phase becomes 108° ± 2°.
phase becomes 108° ± 2°.
8
Repeat adjustment steps (7.1) to (7.3) until both chromi-
nance phase and gain are adjusted to proper position as
shown in Fig. 4-10 and Table 4-2.
nance phase and gain are adjusted to proper position as
shown in Fig. 4-10 and Table 4-2.
Table 4-2
8
Press the ENTER key for next adjustment.
Red
±
2˚
220 %
±
5 %
Phase
Gain
Yellow
Not specified
100 %
±
5 %
108˚
cy
g
M
G
Y
L
yl
B
b
G
C
Y
dG
10
°
0
°
10
°
dø
100%
75%
R
V
U
mg
r
20%
20%
dG
Fig. 4-10
(7.5). Colour Center Point Adjustment
(Don't Change Data)
8
Press the ENTER key for next adjustment.
(8). High Light Chroma Clip Adjustment
Test Point:
CN5 (Video Output Connector)Video Board
Adjust:
RAM (038)
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the White Chart or White Paper.
8
Connect the terminated Oscilloscope with 75
Ω
to CN5.
8
Adjust data with the ARROW keys so that the false
chrominance level becomes minimum as shown in Fig. 4-
11.
chrominance level becomes minimum as shown in Fig. 4-
11.
Note: The Data of 038 should be adjusted from FF, the first
minimum point of the false chrominance signal is
adjusting point.
adjusting point.
Fig. 4-11
Minimize
Chrominance
Level
Chrominance
Level
8
After completing of the adjustment, press the QUIT (F3)
key, then the menu as shown in "<SAVE CAMERA
DATA TO FILE :
key, then the menu as shown in "<SAVE CAMERA
DATA TO FILE :
∗∗∗
. EVR? Y/N>" will be displayed.
8
Press the N key, and then press the ENTER key to finish
of this adjustment procedure.
of this adjustment procedure.
– 9 –
LOCATION OF TEST POINTS AND ADJUSTING CONTROLS
CN3
SW1
Lens Drive Signal
Selector
Selector
Automatic Light Control/
Electronic Light Control
Selector
Detail/Aperture Level
Selector
Back Light Compensation
Mode Selector
Synchronization Mode
Selector
Electronic Light Control
Selector
Detail/Aperture Level
Selector
Back Light Compensation
Mode Selector
Synchronization Mode
Selector
VIDEO/DC
ALC/ELC
SHARP/SOFT
BLC ON/OFF
INT/LL
Video Output
Connector
[VIDEO OUT]
Connector
[VIDEO OUT]
CN5
(Pattern
Side)
(Pattern
Side)
Main
Chassis
Chassis
CN1
CN1
CN2
To
E.V.R.
Adjustment
Kit
E.V.R.
Adjustment
Kit
To
Power Board
Power Board
Auto Iris Lens
Connector
Connector
CN4
(CDS OUT)
(14MHz)
CN2
(Pattern
Side)
(Pattern
Side)
(AGC OUT)
(CCD OUT)
Front
Escutcheon
Escutcheon
4
6
6
1
3
5
3
5
2
VR1
VR2
TP1
(LL VCO)
(LL VCO)
L1
(LL VCO)
(Compon-
ent Side)
(LL VCO)
(Compon-
ent Side)
Sensor Board
<Bottom View>
Video Board (Component Side)
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