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Akai VS-2EGN

Akai VS-2EGN
193 pages
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Akai VS-2EGN Specifications

General IconGeneral
Recording FormatsVHS
TunerYes
Stereo SoundYes
Hi-Fi AudioYes
NTSC/PALNTSC
Remote ControlYes
TypeVCR
Playback FormatsVHS
InputsComposite
OutputsComposite

Summary

Service Manual

SECTION 1 SERVICE MANUAL

Main section introducing the service manual's content and structure.

SECTION 2 PARTS LIST

List of all parts required for servicing the equipment.

SECTION 3 SCHEMATIC DIAGRAM

Detailed circuit diagrams for troubleshooting and repair.

SAFETY INSTRUCTIONS

SAFETY CHECK AFTER SERVICING

Procedures for ensuring safety after servicing the unit.

PRECAUTIONS DURING SERVICING

Essential safety precautions to be followed during service operations.

SECTION 1

SPECIFICATIONS

Detailed technical specifications of the VS-2EGN video cassette recorder.

OPERATING PROCEDURE

Instructions for operating the VCR, including recording functions.

DISMANTLING OF UNIT

Step-by-step guide for disassembling the video cassette recorder.

CONTROLS

Identification and description of all front and rear panel controls.

PRINCIPAL PARTS LOCATION

Visual guide to the location of major components on the unit.

VOLTAGE CONVERSION

Instructions for converting the unit's voltage settings for different regions.

CIRCUIT DESCRIPTION

Explanation of the unit's circuit functions and TV system compatibility.

MECHANICAL ADJUSTMENTS

Procedures for adjusting mechanical parts like tape guides and rollers.

TAPE TRANSPORT ADJUSTMENT

Adjustments related to tape transport mechanisms for optimal performance.

ELECTRICAL ADJUSTMENT

Procedures for calibrating electrical circuits and settings.

VARIOUS WAVEFORMS AT EACH TEST POINT

Illustrations of expected waveforms at various test points for diagnostics.

P.C BOARD TITLES AND IDENTIFICATION NUMBERS

List of PC Board titles and their corresponding part numbers.

COMPOSITION OF VARIOUS P.C BOARDS

Component layouts and diagrams for various PC boards.

SECTION 2

PARTS LIST

Comprehensive list of parts for the VS-2EGN model.

HOW TO USE THIS PARTS LIST

Instructions on how to read and use the provided parts list effectively.

RECOMMENDED SPARE PARTS

List of critical spare parts recommended for stocking and immediate repair.

HEAD DRUM BLOCK

Parts breakdown and exploded view of the head drum assembly.

MECHA FRAME BLOCK (1)

Exploded view and parts list for the mecha frame block.

EJECTOR BLOCK

Parts list and diagram for the ejector block assembly.

VIDEO (EGN) P.C BOARD BLOCK

Component layout and parts list for the Video (EGN) PC Board.

SERVO (EGN) P.C BOARD BLOCK

Component layout and parts list for the Servo (EGN) PC Board.

AUDIOPRE P.C BOARD BLOCK

Component layout and parts list for the Audio/Pre PC Board.

DEMODULATOR P.C BOARD BLOCK

Component layout and parts list for the Demodulator PC Board.

POWER & SYS. CON. P.C BOARD BLOCK

Component layout and parts list for the Power & Sys. Con. PC Board.

FINAL ASSEMBLY BLOCK

Parts list and diagram for the final assembly components.

II. REMOTE CONTROL UNIT RC-V202

TRANSMITTER RC-T2

Component list and diagram for the RC-T2 transmitter unit.

RECEIVER RC-R2

Component list and diagram for the RC-R2 receiver unit.

SECTION 3

SCHEMATIC DIAGRAM OF ICs

Schematic diagrams for various integrated circuits used in the unit.

AN6341 N

Schematic diagram for the AN6341N IC.

AN6342 N

Schematic diagram for the AN6342N IC.

AN6350

Schematic diagram for the AN6350 IC.

AN6362

Schematic diagram for the AN6362 IC.

AN6363

Schematic diagram for the AN6363 IC.

AN6371

Schematic diagram for the AN6371 IC.

BA222

Schematic diagram for the BA222 IC.

BA236

Schematic diagram for the BA236 IC.

BA5102

Schematic diagram for the BA5102 IC.

BA6109

Schematic diagram for the BA6109 IC.

HD14011 BBP

Schematic diagram for the HD14011B/BP IC.

HD14049 BP

Schematic diagram for the HD14049BP IC.

HD14053 BP

Schematic diagram for the HD14053BP IC.

HD14024 BP

Schematic diagram for the HD14024BP IC.

HD14075 BP

Schematic diagram for the HD14075BP IC.

HD14093 BP

Schematic diagram for the HD14093BP IC.

M5144 P

Schematic diagram for the M5144P IC.

M5432 P

Schematic diagram for the M5432P IC.

MSL510 P

Schematic diagram for the MSL510P IC.

MB88301-P

Schematic diagram for the MB88301-P IC.

MB8841-679 J

Schematic diagram for the MB8841-679J IC.

MN1227 P

Schematic diagram for the MN1227P IC.

PC1373 H

Schematic diagram for the µPC1373H IC.

PC339 C

Schematic diagram for the µPC339C IC.

PC574 J

Schematic diagram for the µPC574J IC.

PC741 CTC

Schematic diagram for the µPC741C/TC IC.

PD1986 C

Schematic diagram for the µPD1986C IC.

STK-5315

Schematic diagram for the STK-5315 IC.

TA7060 AP

Schematic diagram for the TA7060AP IC.

TA7075 P

Schematic diagram for the TA7075P IC.

TA78 L005 APTA78 L012 AP

Schematic diagram for the TA78L005AP/TA78L012AP ICs.

TC4520 BP

Schematic diagram for the TC4520BP IC.

PC1004 C

Schematic diagram for the µPC1004C IC.

VS-2 EGN OVERALL BLOCK DIAGRAM NO.18-1 1641656 A

Overall block diagram of the VS-2EGN system.

VS-2 EGN SERVO (PALSECAM) BLOCK DIAGRAM NO.18-2 1641665 A

Block diagram of the Servo circuit for PAL/SECAM systems.

VS-2 EGN SERVO (NTSC) BLOCK DIAGRAM NO.18-3 1641666 A

Block diagram of the Servo circuit for NTSC systems.

VS-2 EGN MECHAOPERATION BLOCK DIAGRAM NO.18-4 1641667 A

Block diagram of the Mecha and Operation circuits.

VS-2 EGN POWERSYSCON BLOCK DIAGRAM NO.18-5 1641668 A

Block diagram of the Power and Syscon circuits.

VS-2 EGN VIDEOEGN BLOCK DIAGRAM NO.18-6 1641661 A

Block diagram of the Video (EGN) circuit.

VS-2 EGN AUDIOVIDEO PRE BLOCK DIAGRAM NO.18-7 1641658 A

Block diagram of the Audio/Video Pre-Amp circuits.

VS-2 EGN DEMODULATOR BLOCK DIAGRAM NO.18-8 1641659 A

Block diagram of the Demodulator circuit.

VS-2 EGN CONNECTION DIAGRAM NO.18-9 1641660 A

Diagram showing interconnections between PCBs.

VS-2 EGN VIDEO(EGN) SCHEMATIC DIAGRAM NO.18-10 1641661 A

Schematic diagram for the Video (EGN) PC Board.

VS-2 EGN EGN SCHEMATIC DIAGRAM NO.18-11 1641662 A

Schematic diagram for the EGN PC Board.

VS-2 EGEKEASEGN AUDIOPRE SCHEMATIC DIAGRAM NO.18-12 1641022 A

Schematic diagram for the Audio/Pre PC Board.

VS-2 EGN SERVO(EGN) SCHEMATIC DIAGRAM NO.18-13 1641663 A

Schematic diagram for the Servo (EGN) PC Board.

VS-2 EGN OPERATION SCHEMATIC DIAGRAM NO.18-14 1641664 A

Schematic diagram for the Operation PC Board.

VS-2 EGEKEAEGN POWER & SYSCON SCHEMATIC DIAGRAM NO.18-15 1641025 B

Schematic diagram for the Power & Syscon PC Board.

VS-2 EGEKEASEGN MECHA DRIVE SCHEMATIC DIAGRAM NO.18-16 1641026 B

Schematic diagram for the Mecha Drive PC Board.

VS-2 EGEGN DEMODULATOR SCHEMATIC DIAGRAM NO.18-17 1641027 B

Schematic diagram for the Demodulator PC Board.

RC-V202 REMOTE CONTROL UNIT SCHEMATIC DIAGRAM NO.18-18 1641030 B

Schematic diagram for the Remote Control Unit.

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