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Sony SLV-X50 User Manual

Sony SLV-X50
72 pages
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SLV-478/677HF/678HF/688HF/L47/L48/L57/
L58/L67HF/L68HF/L77HF/L78HF/X50/X60HF
RMT-V230/V231/V231A/V231B/V232
US Model
SLV-677HF/678HF/688HF
Canadian Model
SLV-478/677HF/678HF
Mexican Model
SLV-L47/L57/L67HF/L77HF/X50/X60HF
Panamanian Model
SLV-L47/L58/L67HF/L78HF
Venezueran Model
SLV-L48/L58/L68HF/L78HF
SERVICE MANUAL
VIDEO CASSETTE RECORDER
MICROFILM
S MECHANISM
HiFi model: SLV-677HF/678HF/688HF/L67HF/L68HF/L77HF/L78HF/X60HF
Mono model:SLV-478/L47/L48/L57/L58/X50
Refer to the SERVICE MANUAL of VHS MECHANICAL
ADJUSTMENT
for MECHANICAL ADJUSTMENTS. (9-
921-647-11)
G
j
Photo : SLV-478
SPECIFICATIONS
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Table of Contents

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Sony SLV-X50 Specifications

General IconGeneral
TypeVCR
BrandSony
ModelSLV-X50
Video FormatVHS
Number of Heads4
Audio SystemMono
Timer RecordingYes
Remote ControlYes
TunerYes
Recording SystemHelical scan
Playback SpeedSP, LP
InputsComposite video
OutputsComposite video
Dimensions360 x 100 x 320 mm

Summary

SPECIFICATIONS

System Specifications

Defines the VCR's format, recording system, head configuration, and tape speed.

Inputs and Outputs

Lists video and audio connectors, signal types, and impedance for inputs and outputs.

General Specifications

Covers power requirements, consumption, operating temperature, dimensions, and mass.

SAFETY CHECK-OUT

LEAKAGE TEST Procedure

Details procedures to check AC leakage from exposed metal parts to earth ground.

SERVICE NOTE

ERROR CODE INDICATION

Explains how error codes are displayed and lists common error codes.

HOW TO REPLACE A ROTARY UPPER DRUM

Provides instructions for removing and attaching the HiFi model's rotary upper drum.

SECTION 1 GENERAL

Unpacking and Initial Setup

Covers VCR unpacking, remote commander setup, and initial hookup options.

Language Selection, Clock Setup, and Cable Box Control

Guides on changing display language, setting clock, and configuring cable box control.

Channel Presetting and VCR Plus+ Setup

Details channel presetting and setting up the VCR Plus+ system for recording.

Basic Operations: Playing Tape and Recording

Covers basic VCR functions for playing tapes and recording TV programs.

Timer Setting and Additional Operations

Explains manual timer setting and advanced functions like searching.

Picture Adjustment, Editing, and General Setup

Covers picture adjustments, editing, external connector setup, and general information.

Troubleshooting and Index

Provides troubleshooting tips and an index to VCR parts and controls.

SECTION 2 DISASSEMBLY

Upper Case and Front Panel Assembly Removal

Details the procedure for removing the upper case and front panel assembly.

DS-79 and JK-161 Board Disassembly

Explains the disassembly steps for the DS-79 and JK-161 circuit boards.

Rear Panel Disassembly

Describes the process for removing the rear panel of the VCR.

MA-317 Board and S Mechanism Deck Assembly

Outlines the removal of the MA-317 board and S mechanism deck assembly.

S Mechanism Deck and MA-317 Board Disassembly

Details the disassembly of the S mechanism deck and MA-317 board components.

Internal Views of VCR Components

Provides top and bottom views illustrating the VCR's internal parts.

Circuit Boards Location Diagram

Illustrates the physical location of the main circuit boards within the VCR.

SECTION 3 BLOCK DIAGRAMS

Overall Block Diagram

Shows the interconnected blocks of the entire VCR system.

Video Block Diagram

Illustrates the signal flow and components within the VCR's video section.

Servo/System Control Block Diagram

Depicts the servo and system control functions and their interconnections.

Audio Block Diagram

Maps out the audio signal path and processing blocks within the VCR.

Tuner Block Diagram

Shows the tuner module and its signal connections for receiving TV channels.

Power Supply Block Diagram

Illustrates the power supply circuit and voltage distribution within the VCR.

SECTION 4 PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Frame Schematic Diagram

Presents the overall schematic layout of the VCR's main boards.

Printed Wiring Boards and Schematic Diagrams

Refers to specific board diagrams, including MA-317 schematics.

MA-317 (Servo/System Control) Schematic Diagram

Detailed schematic for the servo and system control functions of the MA-317 board.

MA-317 (Audio) Schematic Diagram

Schematic diagram detailing the audio circuitry on the MA-317 board.

MA-317 (Mode Control) Schematic Diagram

Schematic illustrating the mode control functions on the MA-317 board.

MA-317 (Tuner) Schematic Diagram

Schematic diagram for the tuner section of the MA-317 board.

MA-317 (Power Supply) Schematic Diagram

Schematic detailing the power supply circuitry on the MA-317 board.

DS-79 (Operation Switches) Schematics

Schematics and wiring for the DS-79 board and operation switches.

JK-161 (Line In 2) Schematics

Schematics and wiring for the JK-161 board, specifically for Line In 2.

SECTION 5 INTERFACE, IC PIN FUNCTION DESCRIPTION

System Control: Mechanism Block Interface

Details IC160 pin functions for mechanism control signals.

System Control: Servo Peripheral Circuit Interface

Lists IC160 pin functions for servo peripheral interface signals.

System Control: System Control Peripheral Interface

Details IC160 pin functions for system control peripheral interface.

System Control: RF Modulator Input Selection Interface

Explains IC160 pin functions for RF modulator and input selection.

System Control: Video/RP Block Interface

Lists IC160 pin functions for video and RP block interface signals.

System Control: Audio Block Interface

Details IC160 pin functions for audio block interface signals.

Servo/System Control Microprocessor (IC160)

Provides a comprehensive pinout and function description for the MA-317 IC160 microprocessor.

SECTION 6 ADJUSTMENTS

6-1 Mechanical Adjustments

Refers to a separate manual for mechanical adjustments of the S mechanism.

2-1. Preparation Before Adjustment

Lists required equipment and connection diagrams for VCR adjustments.

2-2. Power Supply Check

Details how to check the output voltages of the VCR's power supply.

2-3. Servo System Check

Describes procedures for checking and adjusting servo system functions.

2-4. Video System Checks and Adjustment

Covers checks and adjustments for video signal levels, clipping, and frequency.

2-5. Audio System Adjustment

Details procedures for adjusting audio output levels, distortion, and noise.

2-6. Tuner System Adjustment (HiFi MODEL)

Explains how to adjust tuner separation for HiFi models.

2-7. Adjusting Parts Location Diagram

Shows the physical location of adjustment components on the MA-317 board.

SECTION 7 REPAIR PARTS LIST

7-1. Exploded Views

Provides visual breakdowns of VCR assemblies for parts identification.

7-1-1. Front Panel Assembly and Upper Case Section

Exploded view of the front panel and upper case components.

7-1-2. Chassis Section

Exploded view of the VCR's main chassis and related parts.

7-1-3. Mechanism Deck-1

Exploded view of the first part of the VCR's mechanism deck.

7-1-4. Mechanism Deck-2

Exploded view of the second part of the mechanism deck, including drum assemblies.

7-1-5. Mechanism Deck-3

Exploded view of the third part of the mechanism deck, showing gears and motors.

7-2. Electrical Parts List

Lists all electronic components, including resistors, capacitors, diodes, and ICs.

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