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Panasonic WV-BM90 Service Manual

Panasonic wv-bm90 video monitor.
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Service
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ADJUSTMENT PROCEDURE
APPEARANCE OF IC, TRANSISTER AND DIODE
LOCATION OF TEST POINTS AND
A D J U S T I N G C O N T R O L S __........_______._......_..
Panasonic
CONTENTS
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Manual
CHIP COMPONENTS
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WIRINGDIAGRAM
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BLOCK DIAGRAM
MAIN BOARD/SWITCH BOARDNOLUME BOARD
CONTROL BOARD/CONTROL SUB BOARD
CONDUCTOR VIEW
SCHEMATIC DIAGRAM
CONTROL BOARD/CONTROL SUB BOARD
EXPLODED VIEW OF WV-BM90
REPLACEMENT PARTS LIST
Matsushita Electric Industrial Co., Ltd,. -I,-
Central P.O. Box 288, Osaka 530-91, Japan
ORDER NO.AVS8903175C8
Video Monitor
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   Summary of Contents for Panasonic WV-BM90

  • Page 1: Table Of Contents

    LOCATION OF TEST POINTS AND CONTROL BOARD/CONTROL SUB BOARD A D J U S T I N G C O N T R O L S __.._______._.._.. EXPLODED VIEW OF WV-BM90 REPLACEMENT PARTS LIST Panasonic Matsushita Electric Industrial Co., Ltd,. -I,-...

  • Page 2: Specifications

    RESET OUT x 1 10 pin connector Camera Extension Input Adjustable: 2 to 30 sec. Alarm Time 230 (W) x 240 (H) x 270 (D) m m Dimensions Weight OPTIONAL ACCESSORIES o Optional Accessory for WV-BM90 WV-83 o Camera Extension Unit...

  • Page 3: Major Operating Controls And Theirfunctions

    MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS VIDEO MONITOR WV-BM90 1 Power Switch (POWER) Contrast Control (CONTRAST) This is a push type switch which turns the monitor ON and Turn this control clockwise to increase the picture OFF. contrast. Push once and the switch remains down...

  • Page 4

    Camera Input Connectors (CAMERA INPUT) External Timing Input Connector (EXT IN) The BNC type connectors are used to accept the coaxial This is an input connector for the external cables from the specified cameras. These connectors supply the DC power and vertical drive Camera Extension Input Connector (CAMERA EXTENSION IN) the cameras.

  • Page 5

    The power rate of the alarm should be up to DC 24V, max. 22 External Control Connection Terminal (SPOT MONITOR CONTROL IN/RECOVER IN/ALARM If the power capacity of the remote is less than CONTROL OUT/REMOTE OUT) DC 24V, the remote load can be connected at the terminal SPOT MONITOR CONTROL IN of Remote directly.

  • Page 6: Operating Procedure

    OPERATING PROCEDURE Note: SELECTION OF CAMERA The sequential switching features the automatic by- Set the Power Switch (POWER) on the front panel to the pass circuit by detecting the presence of the DC power ON position by pushing once. for the camera so that the input connector with no The switch remains down keeping the monitor and camera connection is automatically skipped.

  • Page 7

    Time Lapse VTR PRIORITY OF SPOT MONITOR CONTROL IN The selection of the camera by Spot Monitor Control In is When the Time Lapse VTR is connected with Mini CCN System, the selection of the camera by alarm sen- set as first come, first served. The Camera Selection Switch has a first priority against any selectional signal.

  • Page 8: Circuit Description

    CIRCUIT DESCRIPTION amplifier ICl (a) to base of impedance converter 471 for Main Board controlling the camera DC power to steady state. The variation of load current due to coaxial cable length is detected by R6 and R7 as a voltage change and the changed l - l voltage is supplied to operation amplifier ICl (a) which compensates the voltage differences between pins 2 and 3 of...

  • Page 9

    IC6. When the input selection switch 5~3 on the VR board is 2-2 Video Processing Circuit set to CAMERA posltlon, pin 53 of IC6 sends low level to 427 a n d Q29 for turning ON 427 and t u r n i n g O F F Q2R. 2-2-l Camera Detection Circuit Therefore camera video signal is selected and supplied to Main board.

  • Page 10

    Reset Circuit 2-4 External Spot Control Circuit Control When the recover terminal is grounded externally, 433 is turned ON and key matrix for sequence control of IC6 is The external spot control circuit contains camera1 -4 select achieved and the system is changed from spot monitoring circuits, busy control circuit and reset control circuit.

  • Page 11

    Pin Identification Description Pin No. Name IN/OUT v s s Ground Camera-l Select/LED/Remote Control IN/OUT Camera-2 Select/LED/Remote Control Camera-3 Select/LED/Remote Control IN/OUT Camera-4 Select/LED/Remote Control IN/OUT Sequence LED Output IN/OUT Camera-l Power Select/Detection IN/OUT Camera-2 Power Select/Detection Camera-3 Power Select/Detection IN/OUT Camera-4 Power Select/Detection IN/OUT...

  • Page 12

    ADJUSTMENT PROCEDURE 3 CRT REPLACEMENT 1 TEST EQUIPMENT REQUIRED Remove the cover as previously described in section 2. Remove two screws holding the front chassis and slide The following equipment is required for adjustment of WV- back the chassis wrth PCB unit. Disconnect the anode cap.

  • Page 13

    Confirm that the DC current of CAMERA INPUT Connect the coaxial cable between the VIDEO OUTPUT connectors 2,3 and 4. terminal of BNV Camera WV-BL90 and CAMERA INPUT connector 1,2,3 or 4 of Video Monitor WV-BM90. H hold, V hold coarse adjustment Video Monitor Adjusts...

  • Page 14

    Focus fine adjustment (4) Picture tilt adjustment Deflection coil Adjust Adjust VR6 (FOCUS) Main board Adjust VR6 (FOCUS) for best focus in the monitor. Loosen the deflection coil holding screw. Turn the deflection coil until the raster on the monitor screen is straight.

  • Page 15

    APPEARANCE OF IC, TRANSISTOR AND DIODE MN1 554CCLl UN2217 MA1 51 K MA1 53Tw 2 : Anode Cathode XN4501 XN4601 XN4401 MA165 CTV- 12s MA1 62TA MA185...

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