Sony Digital Betacam DVW-790WSP Maintenance Manual
Sony Digital Betacam DVW-790WSP Maintenance Manual

Sony Digital Betacam DVW-790WSP Maintenance Manual

Digital betacam camcorder
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DIGITAL BETACAM CAMCORDER
DVW-707/707P
DVW-709WS/709WSP
DVW-790WS/790WSP
SDI OUTPUT BOARD
BKDW-702
PICTURE CACHE BOARD
BKDW-703
IMAGE INVERTER BOARD
BKDW-704
MAINTENANCE MANUAL
1st Edition (Revised 1)
Part 1

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Summarization of Contents

Service Overview
Operating Conditions
Details the environmental conditions for operating the unit, including temperature and humidity.
Supplied Accessories
Lists all accessories provided with the unit, including part numbers and quantities.
Main Part Locations and Circuit Functions
Identifies the locations of main parts and describes the functions of various circuit boards.
Matching Connectors
Lists external cables and connectors required for maintenance and their specifications.
Signal Inputs and Outputs
Details the specifications for all signal inputs and outputs, including connector pin assignments.
Removing/Reinstalling Outside Panel
Provides step-by-step instructions for removing and reinstalling the unit's outside panel.
Opening/Closing Inside Panel
Describes the procedure for opening and closing the inside panel of the unit.
Removing/Reinstalling Cassette Compartment
Details the steps for removing and reinstalling the cassette compartment.
Removing/Reinstalling Plug-in Boards
Explains how to remove and reinstall plug-in boards like DCP/DVP and SV-210.
Switch/Slit Land Settings and LED Functions on the Boards
Details switch and slit land settings and LED functions for various boards.
Ejecting the Cassette Tape Manually
Provides instructions on how to manually eject a cassette tape from the unit.
Inserting the Cassette Tape With Outside Panel Removed
Describes how to insert a cassette tape when the outside panel is removed.
Cleaning When the Heads are Clogged
Guides on cleaning video heads when they become clogged, using cleaning tape or cloth.
Fixtures and Adjustment Equipment
Lists the necessary fixtures and adjustment equipment for maintenance.
Battery for Memory Backup
Provides information on the battery used for memory backup and its replacement.
Replacing the DC-DC Converter
Details the procedure for replacing the DC-DC converter.
Diagnostics
Error Code
Explains warning indicators and error codes displayed on the unit for fault diagnosis.
Error Messages
Details error messages superimposed on the viewfinder screen during operation.
Display Panel and Lamp Operation Check
Describes how to check the display panel and all lamps using the VTR (DIAG) menu.
Displaying the Servo Adjustment Data
Explains how to display servo adjustment data using the VTR menu.
Displaying the Slack Information in the Past
Guides on displaying past slack information and trouble codes using the VTR (DIAG) menu.
Setup Menu
Engineer Mode (Setup Menu)
Details the engineer mode of the setup menu for adjustments and settings.
VTR (DIAG) Menu
Explains the VTR (DIAG) menu for maintenance settings and diagnostics.
Camera System Electrical Alignment
General Information for Electrical Adjustment
Provides general information and notes for performing electrical adjustments.
ENC Level Adjustment
Details the procedure for adjusting ENC level in 16:9 and 4:3 modes.
TEST OUT Level Adjustment
Guides on adjusting TEST OUT levels for RGB signals in 16:9 and 4:3 modes.
VA Gain Adjustment
Explains the procedure for VA gain adjustment using a grayscale chart.
White Shading Adjustment
Provides steps for white shading adjustment for G, R, and B channels.
Gamma Correction Adjustment
Details the procedure for gamma correction adjustment.
Black Set Adjustment
Guides on performing the black set adjustment.
Flare Adjustment
Explains the procedure for flare adjustment.
Manual Knee and White Clip Adjustments
Details manual adjustments for knee and white clip settings.
Crispening Adjustment (16:9)
Provides instructions for crispening adjustment in 16:9 mode.
Level Depandent Adjustment (16:9)
Guides on level dependent adjustment in 16:9 mode.
H/V Ratio Adjustment (16:9)
Explains H/V ratio adjustment for 16:9 mode.
Detail Level Adjustment (16:9)
Details detail level adjustment for 16:9 mode.
Crispening Adjustment (4:3)
Provides instructions for crispening adjustment in 4:3 mode.
Level Depandent Adjustment (4:3)
Guides on level dependent adjustment in 4:3 mode.
H/V Ratio Adjustment (4:3)
Explains H/V ratio adjustment for 4:3 mode.
Detail Level Adjustment (4:3)
Details detail level adjustment for 4:3 mode.
Skin Tone Adjustment
Guides on adjusting skin tone settings.
Zebra Adjustment
Explains the procedure for zebra pattern adjustment.
Automatic Iris Adjustment
Details the automatic iris adjustment procedure.
Camera System Electrical Alignment
General Information for Electrical Adjustment
Provides general information and notes for performing electrical adjustments.
ENC Level Adjustment
Details the procedure for adjusting ENC level for the DVW-707/707P.
TEST OUT Adjustment
Guides on adjusting TEST OUT levels for RGB signals for the DVW-707/707P.
VA Gain Adjustment
Explains the procedure for VA gain adjustment for the DVW-707/707P.
White Shading Adjustment
Provides steps for white shading adjustment for G, R, and B channels.
Gamma Correction Adjustment
Details the procedure for gamma correction adjustment.
Black Set Adjustment
Guides on performing the black set adjustment.
Flare Adjustment
Explains the procedure for flare adjustment.
Manual Knee and White Clip Adjustments
Details manual adjustments for knee and white clip settings.
Crispening Adjustment
Provides instructions for crispening adjustment.
Level Depandent Adjustment
Guides on level dependent adjustment.
H/V Ratio Adjustment
Explains H/V ratio adjustment.
Detail Level Adjustment
Details detail level adjustment.
Skin Tone Adjustment
Guides on adjusting skin tone settings.
Zebra Adjustment
Explains the procedure for zebra pattern adjustment.
Automatic Iris Adjustment
Details the automatic iris adjustment procedure.
Block Diagrams and Circuit Description
Circuit Description
Describes the function of camera processing blocks, RF processing, and digital processing.
Camera Overall Block Diagram
Presents a block diagram illustrating the overall camera system.
VTR Overall Block Diagrams
Shows block diagrams for the VTR overall system (1/2 and 2/2).
Periodic Maintenance and Inspection
Cleaning
Provides general information and methods for cleaning various parts of the unit.
Periodic Check
Outlines periodic checks, including using the hours meter for maintenance reference.
Spare Parts
Notes on Repair Parts
Provides warnings and notes regarding safety-related components and part standardization.
Recommended Replacement Parts
Lists recommended replacement parts for mechanical blocks 1 and 2.
Optional Boards Installation
BKDW-702 (DIF-75 board)
Details the installation procedure for the BKDW-702 (DIF-75) optional board.
BKDW-703 (MY-93 board)
Explains the installation procedure for the BKDW-703 (MY-93) optional board.
BKDW-704 (FM-65 board)
Guides on installing the BKDW-704 (FM-65) optional board.

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