Panasonic WV-BP140 Service Manual ▷ View online
– 2 –
3. CCD Image Sensor
Replacement Procedure
8
Disassemble the Camera while referring to the item 2.
Disassembling Procedure for Adjustment.
Disassembling Procedure for Adjustment.
8
Referring to Fig. 3-1, disconnect the connector CN3 on
the Video Board and remove the Flexible Board.
the Video Board and remove the Flexible Board.
8
Referring to Fig. 3-1, remove two screws (Left x 1,Rigit x
1) that secure the Front Unit and remove the Front Unit.
1) that secure the Front Unit and remove the Front Unit.
Fig. 3-1
Remove one screw
Front Unit
8
Referring to Fig. 3-2, remove two screws that secure the
Front Shield Plate and remove the Front Shield Plate from
the Front Unit.
Front Shield Plate and remove the Front Shield Plate from
the Front Unit.
Fig. 3-2
ADJUSTMENT PROCEDURE
Fig. 2-3
8
Referring to Fig. 2-3, remove two screws that secure
the Upper Cover and remove the Upper Cover.
the Upper Cover and remove the Upper Cover.
1. Test Equipment Required
The following Test Equipments are required for Adjust-
ment of the CCTV Cameras.
ment of the CCTV Cameras.
8
Oscilloscope
8
Digital Voltmeter
8
Underscanned Black and White Video Monitor
8
12 V DC/24 V AC Power Supply Unit
8
Lighting (1 050 nt ± 50 nt (2 750 lx ± 150 lx))
8
Lux Meter
8
Manual Iris Lens (Fujinon HF16A or equivalent)
8
Galvano ALC Lens (WV-LA9C3 or equivalent)
8
ND8 Filter (1 pc.)
8
ND2 Filter (1 pc.)
8
Radiation Chart
8
Logarithmic Gray Scale Chart
2. Disassembling Procedure for
Adjustment
8
Referring to Fig. 2-1, remove two screws that secure the
Mount Adapter and remove the Mount Adapter.
Mount Adapter and remove the Mount Adapter.
8
Referring to Fig. 2-2, remove three screws that secure
the Bottom Cover and remove the Bottom Cover.
the Bottom Cover and remove the Bottom Cover.
Remove two screws
Mount Adapter
Fig. 2-1
Fig. 2-2
Remove three screws
Bottom
Cover
Cover
Remove two screws
Upper Cover
Remove one screw
Video Board
Flexible
Board
Board
CN3
Front Shield
Plate
Plate
Front Unit
Remove two screws
– 3 –
4. Connection and Setting Up for
Adjustment
4.1. Connection
8
The Fig. 4-1 shows the connecting diagram for the Adjus-
tment Procedure.
tment Procedure.
Test Chart
Lens
12 V DC (for WV-BP142E)
24 V AC (for WV-BP144E)
24 V AC (for WV-BP144E)
220-240 V AC (for WV-BP140)
Underscanned
Black and White
Video Monitor
Black and White
Video Monitor
75
Ω
CAMERA
12 V DC or 24 V AC
Power Supply Unit
Power Supply Unit
8
Referring to Fig. 3-3, remove two screws that secure the
Sensor Board and remove the Sensor Board from the
Front Unit.
Sensor Board and remove the Sensor Board from the
Front Unit.
Fig. 3-3
8
Remove the CCD Image sensor (IC1) from the Sensor
Board.
Board.
Fig. 4-1
Sensor
Board
Board
Remove two screws
Front Unit
8
Connect the probe of the Digital Voltmeter or Oscill-
oscope at the desired Test Point in each adjustment
step.
oscope at the desired Test Point in each adjustment
step.
4.2. Setting Up
<Initial Position of the Switches for Adjustment>
8
An initial setting of the Switches on the Rear Panel (Video
Board SW1) as follows:
Automatic Light Control/Electronic Light Control Selector
(ALC,ELC) ...................................................................ALC
Back Light Compensation Mode Selector
[BNC ON (ALC),OFF]..................................................OFF
[BNC ON (ELC),OFF]..................................................OFF
Lens Drive Signal Selector (VIDEO, DC) ......................DC
Board SW1) as follows:
Automatic Light Control/Electronic Light Control Selector
(ALC,ELC) ...................................................................ALC
Back Light Compensation Mode Selector
[BNC ON (ALC),OFF]..................................................OFF
[BNC ON (ELC),OFF]..................................................OFF
Lens Drive Signal Selector (VIDEO, DC) ......................DC
8
The adjustments should be done with this initial setting,
unless otherwise specified.
unless otherwise specified.
8
The adjustments should be done after 10 minutes warm
up.
up.
<Setting Up for Standard Picture>
8
Mount the Manual Iris Lens (HF16A) on the Camera.
8
Set the Logarithmic Gray Scale Chart.
8
Incident light of 1 050 nt ± 50 nt (2 750 lx ± 150 lx) on the
Logarithmic Gray Scale Chart.
Logarithmic Gray Scale Chart.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Mount the ND8 Filter (1 pc.) on the Lens.
8
Set the Camera so that the Camera at the Logarithmic
Gray Scale Chart becomes full picture on the Under-
scanned Black and White Video Monitor.
Gray Scale Chart becomes full picture on the Under-
scanned Black and White Video Monitor.
8
Connect the Oscilloscope to TP4 (IRIS SIG) on the Video
Board.
Board.
8
Set the Lens Iris so that the signal level at TP4 becomes
500 mV ± 10 mV as shown in Fig. 4-2.
500 mV ± 10 mV as shown in Fig. 4-2.
Fig.4-2
8
The adjustment should be done with this Standard condi-
tion, unless otherwise specified.
tion, unless otherwise specified.
500 mV
±
10 mV
– 4 –
5. Adjustment Procedure
8
Refer to the Location of Test Points and Adjusting Con-
trols on the page 6.
trols on the page 6.
(1) +10V Confirmation
Test Point:
Pin 5 of CN1 (+10V)
Video Board
8
Connect the Digital Voltmeter to Pin 5 of CN1.
8
Confirm that the Voltage at pin 5 of CN1 should be within
10.0 V ± 0.5 V.
10.0 V ± 0.5 V.
(2) +5V Confirmation
Test Point:
+Polarity of C9 (+5V)
Video Board
8
Connect the Digital Voltmeter to + polarity of C9.
8
Confirm that the Voltage at + polarity of C9 should be
within 5.0 V ± 0.5 V.
within 5.0 V ± 0.5 V.
(3) V
SUB
Adjustment
Test Point:
TP4 (IRIS SIG)
Video Board
Adjust:
VR1 (V
SUB
)
Video Board
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the Oscilloscope to TP4.
8
Set the Lens Iris so that the signal level at TP4 becomes
approximately 1 750 mV as shown in Fig.5-1.
approximately 1 750 mV as shown in Fig.5-1.
1 750 mV
1 500 mV
±
100 mV
(4) Pedestal and Video Output Adjustment
Test Point:
CN4 (Video Output Connector)Video Board
Adjusts:
VR3 (PEDESTAL)
Video Board
VR4 (VIDEO OUTPUT)
Video Board
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the Oscilloscope terminated with 75
Ω
to CN4.
8
Cap on the Lens.
8
Adjust VR3 so that the Pedestal signal level becomes
50 mV ± 10 mV as shown in Fig.5-3.
50 mV ± 10 mV as shown in Fig.5-3.
50 mV
±
10 mV
Fig. 5-3
8
Remove the Cap from the Lens.
8
Adjust VR4 so that the Video signal level becomes
700 mV ± 30 mV as shown in Fig. 5-4.
700 mV ± 30 mV as shown in Fig. 5-4.
(5) ELC Level Adjustment
Test Point:
TP4 (IRIS SIG)
Video Board
Adjust:
VR5 (ELC LEVEL)
Video Board
8
Set the Automatic Light Control/Electronic Light Control
Selector (on the Video Board SW1) to ELC position.
Selector (on the Video Board SW1) to ELC position.
8
Aim the Camera at the Logarithmic Gray Scale Chart .
8
Connect the Oscilloscope to TP4.
8
While closing slowly the Lens Iris from Iris open (F1.4),
adjust VR5 so that the signal level at TP4 changes
between Ground level and 500 mV DC alternately.
adjust VR5 so that the signal level at TP4 changes
between Ground level and 500 mV DC alternately.
700 mV
±
30 mV
Fig. 5-4
8
Confirm that the ELC Function activates smoothly when
putting on and taking off the Lens Cap.
putting on and taking off the Lens Cap.
Fig. 5-2
8
Set the Lens Iris to standard specified level.
Fig. 5-1
8
Adjust VR1 so that the maximum luminance section (11th
portion of the Gray Scale Chart) of the signal at TP4 sat-
urates at 1 500 mV ± 100 mV as shown in Fig.5-2.
If can not reach to the specified level, while changing
(opening) the Lens Iris, adjust VR1 to the point where
only the 11th portion saturates.
portion of the Gray Scale Chart) of the signal at TP4 sat-
urates at 1 500 mV ± 100 mV as shown in Fig.5-2.
If can not reach to the specified level, while changing
(opening) the Lens Iris, adjust VR1 to the point where
only the 11th portion saturates.
– 5 –
8
Adjust VR2 so that the Video signal level becomes
700 mV ± 30 mV as shown in Fig. 5-5.
700 mV ± 30 mV as shown in Fig. 5-5.
(6) ALC Level Adjustment
Test Point:
CN4 (Video Output Connector)Video Board
Adjust:
VR2 (ALC LEVEL)
Video Board
8
Mount the ALC Lens (WV-LA9C3) on the Camera.
8
Set the Automatic Light Control/Electronic Light Control
Selector (on the Video Board SW1) to ALC position.
Selector (on the Video Board SW1) to ALC position.
8
Aim the Camera at the Logarithmic Gray Scale Chart .
8
Connect the Oscilloscope to CN4.
Fig. 5-5
700 mV
±
30 mV
8
Confirm that the ALC Function activates smoothly when
putting on and taking off the Lens Cap.
putting on and taking off the Lens Cap.
Fig. 5-6
(7) Flange-back Adjustment
Test Point:
CN4 (Video Output Connector)Video Board
Adjust:
Flange-back Adjusting Ring
8
Set the Radiation Chart.
8
Incident light of 500 lx on the Radiation Chart.
8
Aim the Camera at the Radiation Chart distance of 10m.
8
Mount ND8 Filter(1 pc.) and ND2 Filter(1 pc.) on the
Lens.
Lens.
8
Referring to Fig. 5-6, loosen the Focus Fixing screw
(LOCK) that secure the Flange-back Adjusting Ring.
(LOCK) that secure the Flange-back Adjusting Ring.
Flange-back
Adjusting Ring
Adjusting Ring
Focus Fixing
Screw (LOCK)
Screw (LOCK)
LOCK
8
Adjust the Flange-back Adjusting Ring to obtain best focal
point.
point.
8
Tighten the Focus fixing screw (LOCK) that secure the
Flange-back Adjusting Ring carefully.
Flange-back Adjusting Ring carefully.