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Sony SLV-779HF User Manual

Sony SLV-779HF
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US Model
SLV-779HF
Canadian Model
SLV-772HF/779HF
SERVICE MANUAL
VIDEO CASSETTE RECORDER
MICROFILM
S MECHANISM
SLV-772HF/ 779HF
RMT-V266
Refer to the SERVICE MANUAL of VHS
MECHANICAL ADJUSTMENT
for
MECHANICAL ADJUSTMENTS. (9-921-647-11)
SPECIFICATIONS
Photo: SLV-779HF
RMT-V266
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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-779HF Specifications

General IconGeneral
BrandSony
ModelSLV-779HF
CategoryVCR
LanguageEnglish

Summary

Service Manual

Specifications

Technical specifications for the SLV-772HF/779HF VCR, covering system, tuner, inputs/outputs, timer, and general details.

Safety Check-out Procedures

Leakage Test Procedures

Procedure to test AC leakage from exposed metal parts to earth ground and other parts.

Service Notes

Error Code Interpretation

Explanation of how error codes are displayed and listed for troubleshooting.

Error Code Interpretation

Mode Code Indications

Lists and explains mode codes indicating VCR operation status or errors.

General Information and Setup

Unpacking the VCR

Check the received items with the VCR: remote, cables, batteries.

Hookup Options and Procedures

Selecting the Best Hookup Option

Table to help select the best hookup option based on TV and cable box capabilities.

Hookup Procedures (Continued)

Hookup 1: VCR Setup

Steps for setting up the VCR for Hookup 1, including RF unit switch and easy setup.

Hookup Procedures (Continued)

Hookup 2: VCR Setup

Steps for setting up the VCR for Hookup 2, including RF unit switch and easy setup.

Hookup Procedures (Continued)

Hookup 3: VCR Setup

Steps for setting up the VCR for Hookup 3, including RF unit switch and easy setup.

Hookup Procedures (Continued)

Hookup 4: VCR Setup

Steps for setting up the VCR for Hookup 4, including RF unit switch and easy setup.

Hookup Procedures (Continued)

Hookup 5: VCR Setup

Steps for setting up the VCR for Hookup 5 with DIRECTV digital satellite receiver.

Hookup Procedures (Continued)

Hookup 6: VCR Setup

Steps for setting up the VCR for Hookup 6, including RF unit switch and A/B switch setting.

Setting the Clock

Using the Auto Clock Set Feature

Instructions for using the Auto Clock Set feature to automatically set the VCR's clock.

Setting the Clock (Continued)

Using Manual Clock Set

Step-by-step guide for manually setting the year, month, day, hour, and minutes for the clock.

Setting Up Cable Box Control (Continued)

Checking Cable Box Control Settings

Procedure to check if the VCR correctly controls the cable box or DIRECTV receiver.

Presetting Channels

Presetting All Receivable Channels Automatically

Procedure for automatically presetting all receivable channels in sequence.

Presetting Channels (Continued)

Manually Presetting/Disabling Channels

Steps to manually preset or disable individual channels using the VCR's tuning function.

Setting Up the VCR Plus+ System

How the VCR Plus+ System Works

Explanation of how the VCR Plus+ system uses PlusCode numbers for automatic recording.

Recording TV Programs

Basic Operations: Playing a Tape

Instructions on how to play a tape using the VCR's basic functions.

Recording TV Programs (Continued)

Checking Remaining Tape Length

How to display the remaining tape length and time counter on the TV screen.

Recording TV Programs using the VCR Plus+ system (Continued)

Setting the Timer Manually

Steps for manually setting the VCR timer for recording programs when VCR Plus+ is unavailable.

Setting the timer manually (continued)

Daily/Weekly Recording Settings

Explanation of daily/weekly recording patterns and how to select them.

Setting the timer manually (continued)

Automatic Skip-Searching

Instructions for automatically skipping portions of the tape while searching forward or backward.

Checking/changing/canceling timer settings

Recording Stereo and Bilingual Programs

Information on recording stereo and bilingual audio programs and selecting sound during playback.

Recording stereo and bilingual programs (continued)

Adjusting the Picture

Instructions for adjusting tracking and using the Adaptive Picture Control (APC) function.

Changing menu options

Advanced Menu Option Details

Details on options like Auto Ant Select, Tuner Audio, Tape Select, Auto Tape Speed, and Sharpness.

Additional Information

General Setup Information

Setting the RF unit and attaching external antenna connectors or UHF/VHF mixers.

Additional Information: Parts Index

Parts and Controls Index (Continued)

Index for rear panel components and remote commander buttons with page references.

SECTION 2 DISASSEMBLY

Disassembly: Case and Front Panel

Instructions for removing the case and front panel block assembly.

Disassembly (Continued)

Disassembly: Rear Panel

Instructions for removing the rear panel.

Disassembly (Continued)

Disassembly: Mechanism Deck Section

Instructions for removing the mechanism deck and related parts.

2-6. INTERNAL VIEWS

Internal Views: Top View

Diagram showing internal components viewed from the top, including drum and FE head assemblies.

2-7. CIRCUIT BOARDS LOCATION

Circuit Boards Location

Diagram showing the location of the main circuit boards: MA-341, MF-316, and DM-84.

SECTION 3 BLOCK DIAGRAMS

Overall Block Diagram

High-level block diagram showing the main functional blocks of the VCR system.

3-2. VIDEO BLOCK DIAGRAM

Video Block: Tuner Block Connection

Shows the connection from the tuner block to the video processing section.

3-3. SERVO/SYSTEM CONTROL/TUNER BLOCK DIAGRAM

Servo/System/Tuner Block: Video Block Connection

Shows the connection from the video block to the servo/system control/tuner.

3-4. AUDIO BLOCK DIAGRAM

Audio Block: Connection to Tuner Block

Shows the connection from the tuner block to the audio processing section.

3-5. POWER BLOCK DIAGRAM

MA-341 Board Diagram Reference

Cross-reference to the MA-341 board power supply schematic diagram.

SECTION 4 PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Notes for Diagrams

Common notes for interpreting printed wiring boards and schematic diagrams, including symbols and abbreviations.

Schematic Diagrams and Printed Wiring Boards (Continued)

MA-341 Board: Video Block (IC260) Schematic

Schematic diagram for the video block, focusing on IC260 functions and connections.

Schematic Diagrams and Printed Wiring Boards (Continued)

Frame Schematic Diagram

Overall schematic diagram showing interconnections between major boards and components.

MA-341 (1/7) (VIDEO) SCHEMATIC DIAGRAM

Signal Path Details

Diagrams showing the signal path for video and audio signals within the board.

MA-341 (4/7) (AUDIO PROCESS) SCHEMATIC DIAGRAM

Signal Path Details

Diagrams showing the signal path for audio signals within the board.

MA-341 (5/7) (TUNER) SCHEMATIC DIAGRAM

Signal Path Details

Diagrams showing the signal path for video, audio, and tuner signals.

MA-341 (6/7) (MODE CONTROL) SCHEMATIC DIAGRAM

Signal Path Details

Diagrams showing the signal path for remote control signals.

MA-341 (7/7) (POWER SUPPLY) SCHEMATIC DIAGRAM

MA-341 Board (7/7) Designation

Designation of the MA-341 board section relevant to the power supply schematic.

MA-341 BOARD (AUDIO BLOCK (IC201))

DM-84 Board Schematic Diagram

Schematic diagram for the DM-84 board, detailing tape operation circuitry.

MF-316 (POWER/EJECT SWITCH) SCHEMATIC DIAGRAM

MF-316 Board Designation

Designation of the MF-316 board.

Interface and IC Pin Function Descriptions

System Control: Mechanism Block Interface (MA-341 IC160)

Pin functions for IC160 in the system control mechanism block interface.

Interface and IC Pin Function Descriptions (Continued)

System Control: Peripheral Circuit Interface (MA-341 IC160)

Pin functions for IC160 in the system control peripheral circuit interface.

Servo/System Control Microprocessor Pin Functions (MA-341 Board IC160)

Pin Function Details

Detailed description of each pin's function, I/O level, and related controls for IC160.

Interface and IC Pin Function Descriptions (Continued)

Pin Function Details (Continued)

Continued details of IC pin functions, including signal inputs, outputs, and special functions.

Adjustments

Mechanical Adjustments

Reference to VHS Mechanical Adjustment Manual for mechanical adjustments.

Input/Output Levels and Impedance

Adjustment Sequence

The recommended sequence for performing VCR adjustments: Power Supply, Servo/Video, and Audio.

Servo System Check

RF Switching Position Adjustment (MA-341 Board)

Procedure to adjust tape playback output links for unit compatibility and screen integrity.

HiFi Switching Position Adjustment (MA-341 Board)

ACE Head Adjustment

Refer to VHS mechanical adjustment manual for ACE head adjustment.

2-8. ADJUSTING PARTS LOCATION DIAGRAM

Adjusting Parts Location Diagram

Diagram showing the location of adjustable parts on the MA-341 board (conductor side).

SECTION 7 REPAIR PARTS LIST

Exploded Views of Parts

Exploded views showing VCR components and their part numbers for identification.

7-1-2. CHASSIS SECTION

Chassis Section Parts List

List of parts and their references for the chassis section.

7-1-3. MECHANISM DECK SECTION-1

Mechanism Deck Section-1 Parts List

List of parts and references for the first section of the mechanism deck.

7-1-4. MECHANISM DECK SECTION-2

Mechanism Deck Section-2 Parts List

List of parts and references for the second section of the mechanism deck.

7-1-5. MECHANISM DECK SECTION-3

Mechanism Deck Section-3 Parts List

List of parts and references for the third section of the mechanism deck.

7-2. ELECTRICAL PARTS LIST

Notes on Electrical Parts

Notes on standardization, stocking, and critical safety components for parts list.

MA-341

Capacitors List

List of capacitors with part numbers, descriptions, and specifications.

MA-341

Coils List

List of coils (inductors) with part numbers, descriptions, and specifications.

MA-341

ICs List

List of integrated circuits with part numbers, descriptions, and key functions.

MA-341

Resistors List (Continued)

List of resistors with part numbers, descriptions, and specifications.

MA-341 MF-316

Switches List

List of switches with part numbers and descriptions.

MA-341 MF-316

Connectors List (MF-316)

List of connectors for the MF-316 board with part numbers and pin configurations.

MF-316

Hardware List (MF-316)

List of hardware items like screws used in assembly.

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