Panasonic WV-BM90

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Remove four screws holding CRT and remove CRT.
Remove four screws
Fig. 3-4
5
(1)
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l
(2)
4 CONNECTION AND SETTING UP FOR
ADJUSTMENT
l
l
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Connect the coaxial cable between the VIDEO OUTPUT
terminal of BNV Camera WV-BL90 and CAMERA INPUT
connector 1,2,3 or 4 of Video Monitor WV-BM90.
(3)
Video Monitor
WV-EM90
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7
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Approx. 1.7ft (0.5m)
l
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ADJUSTMENT
12V adjustment
Test Point : TP2 (12V)
Adjust : VRl (12V ADJ)
Main board : *
Main board
Disconnect all cameras from the Camera input connectors
1,2,3 and 4 on the rear panel.
Turn ON the power switch.
Connect the digital voltmeter to TP2.
Adjust VRl (12V ADJ) for 12V 2 O.lV.
DC current adjustment
Adjust : VRl (DC CURRENT)
Observe : DC current meter
Control board
Connect the DC current meter between the video camera
WV-BL90 and CAMERA INPUT 1 connector of Video
Monitor WV-BM90.
Turn ON the power switch.
Adjust VRl (DC CURRENTADJ) for 22OmA t 7mA.
Confirm that the DC current of CAMERA INPUT
connectors 2,3 and 4.
H hold, V hold coarse adjustment
Adjusts : VR2 (SUB BRIGHT)
Main board
VR5 (H. HOLD)
Main board
VRll (V. HOLD)
Control board
Set the controls and switches on the volume board and
Control board as follows.
Mode Selection switch :
Input Selection switch :
Contrast Control :
Bright Control :
Vertical hold control :
Horizontal hold control :
ON position
EXT position
Mechanical Center position
Mechanical Center position
Mechanical Center position
Mechanical Center position
Connect the completely aligned video camera WV-BL90
to CAMERA INPUT connector 1.2.3 or 4 of Video Monitor
WV-BM90.
Aim the camera atthe resolution chart (YWV1400RB99).
Turn ON the power switch.
Adjust the VR2 (SUB BRIGHT) so that the raster will just
appear.
Adjust VRl l(V.HOLD) and VR5(H.HOLD) so that the circle
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of the resolution chart on the Monitor screen becomes ‘. Ia
center position.
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