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Bang-Olufsen BeoCord V8000 User Manual

Bang-Olufsen BeoCord V8000
213 pages
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BeoCord
V8000
Type
4601,
4605,
4606,
4609
Service
Manual
English,
German,
French
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Bang-Olufsen BeoCord V8000 Specifications

General IconGeneral
Remote controlYes
Record/Playback Heads4
Timer recordingYes
TypeVHS VCR
TV systemPAL, SECAM
Sound systemStereo
Tape speedSP, LP

Summary

BeoCord V8000 Service Manual Overview

Module Identification

Mother Board Module

Details for Mother Board module with diagram references.

Input/Output Module

Details for Input/Output module with diagram references.

AV Sockets Module

Details for AV Sockets module with diagram references.

Teletext Module

Details for Teletext module with diagram references.

Transcoder Module

Details for Transcoder module with diagram references.

Power Supply Module

Details for Power Supply module with diagram references.

Interface Module

Details for Interface module with diagram references.

Front Processor Module

Details for Front Processor module with diagram references.

Display and Control Module

Details for Display and Control module with diagram references.

Front End B/G Module

Details for Front End B/G module with diagram references.

Front End Multi Module

Details for Front End Multi module with diagram references.

Service Specification Guidelines

Cassette and System Specifications

Details on cassette format, CTV system, cabinet finish, and remote control.

Tuner and Picture Function Specifications

Specifications for tuner range, programs, picture functions, and playback.

Sound Tape and Power Specifications

Details on sound compatibility, stereo decoder, frequency, and power supply.

Dimensions, Weight, and Various Features

Specifications for device dimensions, weight, and features like quickloading.

TV System Compatibility Survey

Modifications for different TV transmission systems.

Basic VTR Operation and Customization

Playback Operation Guide

Instructions for VTR playback functions like play, stop, cue, and slow motion.

Menu Operation Guide

Instructions for navigating and using V.Tape menu operations.

Customizing the Beo4 Remote

Guide to pre-programming the Beo4 remote for specific functions.

Diagram Explanation and Symbols

Explanation of Diagram Components

Explains component numbering, notes, connections, measuring conditions, and safety symbols.

Lithium Battery Safety

Safety warnings and guidelines for handling lithium batteries.

Circuit Diagram Symbols

Defines symbols used in circuit diagrams for video, chroma, and status signals.

Circuit Diagram Symbols Explained

Circuit Diagram Symbols for Video Signals

Detailed explanation of symbols for video signals, chroma, and status.

Circuit Diagram Symbols for Various Signals

Definitions for various signal symbols used in circuit diagrams.

Circuit Diagram Symbols for Audio and Voltages

Circuit Diagram Symbols for Audio Signals

Explanation of symbols related to audio signals and their processing.

Voltage Abbreviations and Definitions

List and explanation of voltage abbreviations used in diagrams.

Wiring Diagrams and Module Connections

Wiring Diagram Overview

Shows connections between major modules like AV sockets, front end, and interface.

Module Wiring Diagrams

Module Connectivity in Wiring Diagram

Illustrates connections for V sockets, transcoder, interface, display, mother board, teletext, and power supply.

Analog Block Diagram Explained

Analog Block Diagram Components

Identifies key analog blocks like AV board, I/O board, mother board, and front end.

Digital Block Diagram Components

Digital Block Diagram Overview

Illustrates digital components like capstan motor, deck controller, and interface.

Power Supply Schematic

DIAGRAM A Power Supply Circuit

Detailed schematic of the power supply unit.

Front End B/G Schematic

DIAGRAM B Front End B/G Circuit

Schematic diagram for the Front End B/G module.

Front End Multistandard PCB Layouts

PCB 74 Front End Multistandard Components

Component layout for the Front End Multistandard PCB.

PCB 74 Front End Multistandard Solder Side

Solder side view of the Front End Multistandard PCB.

Front End Multistandard Block Diagram

DIAGRAM B Front End Multistandard Circuit

Schematic diagram for the Front End Multistandard module.

Mother Board PCB Layouts

PCB 64 Mother Board Components

Component layout for the Mother Board PCB.

PCB 64 Mother Board Solder Side

Solder side view of the Mother Board PCB.

Tuner/Modulator Schematic

DIAGRAM C Mother Board Tuner/Modulator

Schematic diagram for the Mother Board Tuner/Modulator.

SECAM Processing Schematic

DIAGRAM D Mother Board SECAM Processing

Schematic diagram for the Mother Board SECAM Processing.

Head Amplifier Schematic

DIAGRAM E Mother Board Head Amplifier

Schematic diagram for the Mother Board Head Amplifier.

Video Signal Processing Schematic

DIAGRAM F Mother Board Video Signal Processing

Schematic diagram for the Mother Board Video Signal Processing.

Deck Electronics Schematic

DIAGRAM G Mother Board Deck Electronics

Schematic diagram for the Mother Board Deck Electronics.

Capstan Motor Unit Details

Diagrams and details for the Capstan Motor Unit.

Deck Controller and Reset Generator

Schematic details for the Deck Controller and Reset Generator.

Central Control Schematic

DIAGRAM H Mother Board Central Control

Schematic diagram for the Mother Board Central Control.

Input/Output Board Schematic

DIAGRAM I Input/Output Board In/Out

Schematic diagram for the Input/Output Board's In/Out functions.

Audio Input/Output Schematic

DIAGRAM J Input/Output Board Audio

Schematic diagram for the Input/Output Board's audio section.

Input/Output PCB Layouts

PCB 65 Input/Output Components

Component layout for the Input/Output PCB.

PCB 65 Input/Output Solder Side

Solder side view of the Input/Output PCB.

Teletext Schematic

DIAGRAM K Teletext Circuit

Schematic diagram for the Teletext module.

Teletext PCB Layouts

PCB 67 Teletext Components

Component layout for the Teletext PCB.

PCB 67 Teletext Solder Side

Solder side view of the Teletext PCB.

Transcoder Schematic

DIAGRAM L Transcoder Circuit

Schematic diagram for the Transcoder module.

Transcoder PCB Layouts

PCB 68 Transcoder Components

Component layout for the Transcoder PCB.

PCB 68 Transcoder Solder Side

Solder side view of the Transcoder PCB.

AV Sockets Schematic

DIAGRAM M AV Sockets Circuit

Schematic diagram for the AV Sockets.

AV Sockets PCB Layouts

PCB 66 AV Sockets Components

Component layout for the AV Sockets PCB.

PCB 66 AV Sockets Solder Side

Solder side view of the AV Sockets PCB.

Display and Control Schematic

DIAGRAM N Display and Control Circuit

Schematic diagram for the Display and Control unit.

Display and Control PCB Layout

PCB 73 Display and Control Components

Component layout for the Display and Control PCB.

Interface Schematic

DIAGRAM O Interface Circuit

Schematic diagram for the Interface module.

Interface PCB Layouts

PCB 70 Interface Components

Component layout for the Interface PCB.

PCB 70 Interface Solder Side

Solder side view of the Interface PCB.

List of Electrical Parts by PCB

Mother Board Electrical Parts

List of electrical components for the Mother Board (Types 4601, 4605, 4606, 4609).

Front End Electrical Parts

List of electrical components for the Front End (Types 4601, 4605, 4606, 4609).

Input/Output and AV Sockets Parts

List of electrical components for Input/Output and AV Sockets.

Electrical Parts Lists Continuation

Teletext, Transcoder, Power Supply Parts

List of electrical components for Teletext, Transcoder, and Power Supply.

Interface, Front Processor, Display Parts

List of electrical components for Interface, Front Processor, and Display.

Electrical Parts Lists by PCB (Continued)

Transcoder and Front End Parts

List of electrical components for Transcoder and Front End.

Input/Output, AV Sockets, Teletext Parts

List of electrical components for Input/Output, AV Sockets, and Teletext.

Electrical Parts Lists Continuation

Front End and Power Supply Parts

List of electrical components for Front End and Power Supply.

Electrical Parts Lists by PCB (Continued)

Transcoder and Front End Parts (Continued)

List of electrical components for Transcoder and Front End.

Electrical Parts Lists by PCB (Continued)

Front End and Power Supply Parts

List of electrical components for Front End and Power Supply.

Main Chassis Exploded View

Main Chassis Exploded View

Exploded view of the main chassis with numbered parts.

List of Mechanical Parts by Module

Mechanical Parts for Mother Board

List of mechanical components for Mother Board modules.

Mechanical Parts for Input/Output and AV

List of mechanical components for Input/Output and AV Sockets.

Mechanical Parts for Teletext, Transcoder

List of mechanical components for Teletext and Transcoder.

Mechanical Parts for Power Supply, Interface

List of mechanical components for Power Supply and Interface.

Mechanical Parts for Front Processor, Display

List of mechanical components for Front Processor and Display.

Mechanical Parts for Front End Modules

List of mechanical components for Front End modules.

Tape Deck Mechanical Parts

List of mechanical components for the Tape Deck.

Survey of Screws and Holders

List of various screws, holders, and small parts.

Top Side Mechanism Exploded View

Top Side Mechanism Exploded View

Exploded view of the top side mechanism with parts.

Mechanical Parts Lists and Service Kits

Top Side Mechanism Parts List

Detailed list of mechanical parts for the top side mechanism.

Service Kits and Wire Bundles

List of available service kits and wire bundles.

Parts Not Shown

List of parts that are not depicted in the diagrams.

Bottom Side Mechanism Exploded View

Bottom Side Mechanism Exploded View

Exploded view of the bottom side mechanism with parts.

Mechanical Parts and Accessories

Servicing Jigs and Tools

List of specialized tools and jigs for servicing.

Setting-up Guides and User Manuals

List of setting-up guides and user manuals in various languages.

Electrical Adjustments Procedures

Electrical Adjustments Overview

General information on service modes and adjustments.

Adjustments After Component Replacement

Specific adjustments needed after replacing certain components.

Detailed Electrical Adjustments

Power Supply Adjustments

Procedure for adjusting the +5V supply.

Front-End Circuit Adjustments

Adjustments for Picture Demodulation, Delayed AGC, and Chroma Amplitude.

Crosstalk and RF Threshold Adjustments

Procedures for Stereo Decoder Crosstalk and RF Threshold adjustments.

Picture Demodulator (SECAM L) Adjustments

Adjustments for SECAM L Band Picture Demodulator circuit.

Mother Board and Teletext Adjustments

Mother Board SECAM Adjustments

Adjustments for Chroma Writing Current, Cloche Curve, and filters.

Mother Board VHS and Luminance Adjustments

Adjustments for VHS signal luminance writing current.

Further Electrical Adjustments

Chroma Recording and S-VHS Adjustments

Procedures for Chroma Recording Current and S-VHS Detection.

ATR and Teletext Adjustments

Adjustments for ATR Initialisation and Teletext Hi/2 Sync.

Audio and Transcoder Adjustments

In/Out Board Audio Adjustments

Adjustments for FM Envelope Voltage, Sound Envelope, and BIAS.

Transcoder Adjustments

Procedures for Chrominance Frequency and SECAM Luminance Delay.

Mechanical Adjustments Procedures

X Distance and Tape Path Adjustment

Procedures for adjusting X distance and tape path.

Head and Brake Band Adjustments

A/C Head Tilt and Azimuth Adjustments

Adjusting the tilt angle, head height, and azimuth of the A/C head.

Brake Band Adjustment

Procedure for adjusting the brake band.

Tape Tension and Clutch Adjustments

Tape Tension Adjustment

Procedure for adjusting tape tension.

Friction Clutch and Reverse Brake Control

Adjusting friction clutch and reverse brake controls.

Service Mode and Information Menus

Service Mode Overview

Introduction to service modes and their operation.

Service Mode Part One and Information Menu

Accessing and using service menus and information items.

Service Mode Features and Error Codes

Variant Setup Menu and Error Codes

Details on variant setup and interpretation of error codes.

Service Mode Menu Settings

Tuner System and Compatibility Setup

Configuration of tuner systems and compatibility settings.

Remote Control, Menu Colour, and PDC/VPS Settings

Settings for remote control, menu layout, and PDC/VPS.

System Decoder and Modulator Settings

Configuration for system decoders and modulator.

Timer Recording and Service Counters

Timer Recording Information Menu

Displaying status of executed timers and error causes.

Service Counters and Power-On Time

Details on service counters and power-on time tracking.

Electrical Adjustments and Reset Procedures

Electrical Adjustments Menu

Overview of available electrical adjustments.

Endless Play and After Service Reset

Explanation of endless play mode and after-service reset.

Total Reset and IRSS Service Mode

Total Reset Procedure

Instructions for performing a total reset after HCP EEPROM replacement.

IRSS Service Mode Part Two

Details on service functions using the built-in IR receiver.

VTR Operation and Service Codes

Basic VTR Operation and Deck Functions

Explains basic deck functions and remote control operations.

Service Mode Digit Commands

Describes digit commands for adjustment functions and different operational modes.

IRSS Service Command Tables

IRSS Command Table Overview

Lists IRSS service codes for various functions like adjustments and system setup.

Tuner and Playback System Settings

Tuner Sound Setting Options

Settings for tuner sound modes (NICAM Stereo, Language) and frequency.

Playback System Configuration

Options for selecting playback systems (PAL, MESECAM, SECAM).

IRSS Service Codes Explained

IRSS Codes for Playback and System Control

List of IRSS codes for playback systems, SECAM, Transcoder, and LEDs.

IRSS Service Codes for Signal and Control

IRSS Codes for Signal Processing

Codes for RGB, Modulator AGC, Linear Sound, RF Threshold, and drive position.

IRSS Codes for Deck Sensors and Modes

Codes for deck sensors, dummy mode, and menu navigation.

IRSS Service Codes for Setup and Modes

IRSS Codes for Tuner, Colour, and Decoder Setup

Codes for tuner setup, menu colour, and system decoder.

IRSS Codes for Reset and Modulator/Text

Codes for total reset, service reset, modulator, and text modes.

Sec Box and Teletext Cor Functions

Sec Box On/Off Functionality

Explanation of Sec Box On/Off states and setup table.

Teletext Cor On/Off Functionality

Explanation of Teletext Cor On/Off states and setup table.

Deck Controller IC Pin Descriptions

Pin Description for Deck Controller IC 64IC 7085

Detailed pinout and function descriptions for the Deck Controller IC.

IC 7085 Tape Deck Control Functions

Tape Deck Position Detection and Motor Control

Explanation of tape deck position detection and motor control signals.

Tape Sensors and Speed Control

Details on tape sensors, speed selection, and head switching pulses.

Signal Processing and Control Functions

SECAM, Audio, and Chroma Signal Functions

Functions related to SECAM detection, audio record, and chroma phase.

Video Signal and Control Functions

Video Signal and Control Functions

Explanation of FFP, DROP OUT correction, and various signal controls.

EEPROM Functionality in Service Menu

EEPROM Role in Setup and Data Storage

Explains how UIP and HCP EEPROMs store setup values and synchronize data.

VTR Start-up Procedures and Measurements

VTR Start-up Sequence 1 and 2

Describes start-up sequences, visual observations, and measurements.

Tape Loading and Running Procedures

VTR Start-up Sequence 3 and Measurements

Details tape loading, visual observations, and running measurements.

Circuit Description - Power Supply and Video

Power Supply Circuit Description

Explains the blocking-oscillator power supply operation and control.

Chroma/Video Circuit Signal Paths

Describes signal paths for Chroma/Video circuits including AGC and deemphasis.

Circuit Description - SQPB and Chroma

SQPB Signal Path

Details the signal path for SQPB (Quasi SVHS) and its processing.

Chroma Recording Signal Path

Describes the chroma signal path during recording.

Circuit Description - SECAM Signals

Secam-L Signal Processing

Explanation of Secam-L signal processing, filters, and amplifiers.

Secam-L Recording Signal Path

Details the signal path for Secam-L recording.

Circuit Description - SECAM Modes

Secam-L Playback Signal Path

Describes the Secam-L playback signal path and processing.

Secam Ident and Transcoder Function

Explains Secam signal identification and Secam to PAL transcoding.

Disassembly Procedures - General

Removal of Cabinet Parts and Chassis

General steps for removing cabinet parts and chassis.

Side Panel Removal

Instructions for removing the side panels.

Top Cover Removal

Instructions for removing the top cover.

Disassembly Procedures - Front Panel and Chassis

Front Panel Removal

Steps for removing the front panel.

Main Chassis and Tape Deck Removal

Instructions for removing the main chassis with the tape deck.

Tape Deck Disassembly

Tape Deck Removal Steps

Detailed procedure for removing the tape deck.

Power Supply Servicing Procedure

Servicing the Power Supply Unit

Instructions for servicing the power supply module.

Deck Layout Diagrams and Repair Notes

Tape Deck Layout Diagrams

Diagrams illustrating the tape deck layout.

Important Repair Note

Critical note for post-repair operations.

Roller Unit Removal and Replacement

Right Roller Unit Removal

Instructions for removing the right roller unit.

Cassette Lift Removal and Installation

Cassette Lift Removal Procedure

Steps for removing the cassette lift mechanism.

Cassette Lift Installation Procedure

Instructions for installing the cassette lift mechanism.

Cylinder Removal Procedure

Cylinder Removal Steps

Detailed instructions for removing the cylinder.

Cylinder Installation Procedure

New Cylinder Installation

Instructions for installing a new cylinder.

A/C Head Replacement and Adjustments

A/C Head Replacement Procedure

Steps for replacing the A/C head.

A/C Head Adjustments Post-Replacement

Adjustments required after replacing the A/C head.

Motor Removal Procedures

Threading Motor Removal

Instructions for removing the threading motor.

Capstan Motor Removal

Instructions for removing the capstan motor.

Pressure Roller and Guide Removal

Pressure Roller and Guide Removal

Steps for removing the pressure roller and its guide.

Roller Unit Removal Procedures

Right Roller Unit Removal

Instructions for removing the right roller unit.

Left Roller Unit Removal Procedure

Left Roller Unit Removal

Instructions for removing the left roller unit.

Insulation Testing Procedure

Performing Insulation Test

Steps for performing insulation test after dismantling and reassembly.

Safety Precautions for Insulation Test

Important safety notes for insulation testing.