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Sony DNW-A220 User Manual

Sony DNW-A220
190 pages
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DIGITAL VIDEOCASSETTE RECORDER
DNW-A220
DNW-A220P
MAINTENANCE MANUAL Part 1
2nd Edition (Revised 4)
Serial No. 31001 and Higher
Serial No. 51001 and Higher

Table of Contents

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Sony DNW-A220 Specifications

General IconGeneral
BrandSony
ModelDNW-A220
CategoryVCR
LanguageEnglish

Summary

Service Overview

Power Supply

Details the AC and battery power options for the unit, including voltage and consumption.

Connection Connectors and Cables

Lists and describes connection panel indicators, connectors, and corresponding Sony part numbers.

Connector Input and Output Signals

Provides detailed information on all input and output connectors and their signal types.

Location of Main Parts and Circuit Function

Identifies main parts and explains circuit functions, including player/recorder differences.

System of Cassette

Explains the plugs and tabs on the back of Betacam SX and Betacam/Betacam SP cassettes.

Removing and Installing the Cabinet

Details procedures for separating, coupling, and removing/installing the unit's cabinet.

Disconnecting and Connecting Circuit Boards

Explains procedures for disconnecting and connecting plug-in and other circuit boards.

Settings for Internal Switches and Slit Lands

Details settings for internal switches and slit lands on various boards like AU-249 and DM-114/114P.

Description on Internal Indicators

Lists and describes the function and normal state of internal indicators on various boards.

Cleaning Clogged Video Heads

Provides procedures for cleaning video heads using a cleaning tape or cloth.

Power Protection

Explains power protection features, including breaker reset and IC link information.

Battery for Memory Backup

Details the battery replacement procedure and its importance for memory backup.

Fixtures and Adjustment Equipment List

Lists fixtures and adjustment equipment used for maintenance and repair.

Settings for External Editors

Covers time code settings and VTR constant settings for external editors.

Setup Menu

Explains the F-series items on the setup menu for adjustment or maintenance.

Memory Card Operations

Details the use of memory cards for saving/reading setup menus and updating software.

Error Message

Overview of Error Message

Introduces the unit's self-diagnostics function and error message display methods.

Details of Error Messages

Provides detailed explanations for various error codes, their detection conditions, and causes.

Maintenance Mode

Overview of Maintenance Mode

Describes the four main maintenance modes (TAPE, ERROR LOGGER, OTHERS, SETUP).

TAPE Maintenance Mode (M0)

Details the TAPE maintenance mode and its submodes for VTR checks and adjustments.

Error Logger Display Mode (M2)

Explains the error log function for recording and displaying errors.

OTHERS CHECK Mode (M3)

Covers various check menus including ROM version, serial number, and memory card utility.

Setup Maintenance Mode (M4)

Details the setup maintenance mode, including extended menu selection and reset functions.

Periodic Maintenance and Inspection

Periodic Maintenance

Recommends periodic checks and parts replacements for optimal performance and longevity.

Cleaning Procedures

Provides instructions for cleaning video heads, tape running surfaces, and stationary heads.

Cares After Outdoor Use

Recommends cleaning procedures after using the unit in dusty or outdoor environments.

Video Head Tip Protrusion Check

Details the procedure for measuring video head tip protrusion using a specialized gauge.

Spare Parts

Notes on Repair Parts

Provides warnings on safety-related components and notes on part standardization and stock.

Exploded Views

Illustrates exploded views of the unit's components with part numbers and descriptions.

Pulg-in Boards

Lists plug-in boards, their part numbers, and whether setting/adjustment is required after replacement.

Optional Accessories List

Lists optional accessories available for the unit, including part numbers and descriptions.

Fixtures List

Lists fixtures and tools required for maintenance and adjustment procedures.

Overall Block Diagram and Circuit Description

Video Signal Processing Block

Describes the recording and playback signal paths for video processing blocks.

Audio Signal Processing Block

Details the audio signal processing, switching, and output paths.

Digital Signal Processing and RF Blocks

Explains signal processing for DPR-87, EQ-72, and drum assembly during recording/playback.

Analog Betacam Playback Block

Describes the processing of analog Betacam playback video and audio signals.

System Control and Servo Blocks

Covers the function of system control CPUs and the servo CPU.

Power Supply Block

Explains the power supply system, including DC input, switching regulators, and voltage generation.

Appendix A Setting Check Sheet

Connector Panel Switches

Details factory and user settings for connector panel switches for audio and video.

Control Panel Switches

Lists factory and user settings for control panel switches like REC/INHIBIT and TC GENERATOR.

Internal Slit-lands Settings

Shows factory and user settings for internal slit-lands on AU-249 and RE-150 boards.

Internal Switches Settings

Provides factory and user settings for internal switches on various boards.

Sub LCD Menu Settings (525/60 System)

Lists settings for the sub LCD menu (HOME, Audio, Video, General) for the 525/60 system.

Setup Menu Settings (525/60 System)

Details operational and menu bank parameters for the 525/60 system setup menu.

Extended Menu Settings (525/60 System)

Lists operational, remote interface, and editing parameters for the 525/60 system.

Sub LCD Menu Settings (625/50 System)

Lists settings for the sub LCD menu (HOME, Audio, Video, General) for the 625/50 system.

Setup Menu Settings (625/50 System)

Details operational and menu bank parameters for the 625/50 system setup menu.

Extended Menu Settings (625/50 System)

Lists operational, remote interface, and editing parameters for the 625/50 system.

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