Akai VS-X9EGN

AKAT
Service
manual
moan vs sven DX Abner
MULTI SYSTEM
TYE RECORDER
VIDEO CASSE
INTERACTIVE MONITOR SYSTEM
VIDEO CASSETTE RECORDER
MODEL VS-X9EGN
SPECIFICATIONS
ee arr ee ae VHS standard Audio
Video recording system ... Rotary, slant azimuth two-head Line input level... .... —8 dBm/50 K ohms, unbalanced
helical scan system Line output level ...... —6 dBm/ 1 K ohms, unbalanced
Rotary heads ......... DX4 video heads S/Nratio .......... more than 40 dB
RFinput ........... System B/G, D/K,I,M Frequency response .... 70 — 10,000 Hz (SP mode)
(Europe ch.) ........ VHF ch 2 — 4,S1 —S10,5 —12, | Recording/playback time
S11 — 820 NISC | 2 8 cece ee eter e tne 160 min. with T-160 cassette on
UHF ch 21 — 69 SP mode
(USA ch.) .......... VHF ch 2 — 6,7 — 13 NTSC! fuses ee ee 480 min. with T-160 cassette on
UHF ch 14 — 83 SLP mode
CABLE ch A-1,A-2,A—-I,J -W COIRG 6 ghs euro doy tisk 240 min. with E-240 cassette on
(Japanch.) ......... VHF ch 1 — 3,4 — 12 SP mode
UHF ch 13 — 62 Tape speed
RF output... ......... B/G, I, M, D/K type modulation NTSC SP mode..... 33.35 mm/sec. (1-5/16 i.p.s.)
(BAL): 6-058 ashe acse ten 8 UHF ch 30 — 39 SLP mode .... 11.12 mm/sec. (7/16 ip.s.)
adjustable (preset ch 36) CCIR SP mode(only) . 23.39 mm/sec.
(NTSC) ........... UHF ch 26 — 38 Quick finder
adjustable (preset ch 34) NTSC SP mode..... approx. 3 times normal speed
Recording (line input) . . . . PAL (System B, G, I) SLP mode .. . . approx. 9 times normal speed
SECAM (SECAM or CCIR SP mode(only) . approx. 3 times normal speed
MESECAM tape) FF,REWtime ........ approx. 5 min. with E-240
NTSC 3.58 MHz cassette
NTSC 4.43 MHz Timer
Playback (line output)... . PAL Program ........... 6 program/2 week and sleep timer
SECAM (SECAM or Clock reference....... Quartz crystal
MESECAM tape) Display ............ TV screen (Tape counter, Timer
NTSC 3.58 etc.)
NTSC 4.43 Power requirements ..... 110 — 250 V AC, 50/60 Hz
Video Power consumption ..... 27W
Line input level... .... 0.5 — 2.0 Vp-p/75 ohms, Operating temperature. . . . 5°C — 40°C
unbalanced Dimensions .......... 425 (W) x 95 (H) x 345(D) mm
Line output level... . .. 1.0 Vp-p/75 ohms, unbalanced (16.5 x 3.7 x 13.4 inches)
S/Nratio .......... more than 45 dB Weight ............-. 5.9 Kg (13.0 Ibs)
Horizontal resolution
PADS <-305. ween’ 4 more than 250 lines
SECAM(MESECAM) .. more than 220 lines
NTSC(SP MODE) .... more than 240 lines
* For improvement purposes, specifications and design are subject to change without notice.
rg te
’

Akai VS-X9EGN Specifications

General

Brand	Akai
Model	VS-X9EGN
Category	VCR
Language	English

Summary

SPECIFICATIONS

SAFETY INSTRUCTIONS

PRECAUTIONS DURING SERVICING

Guidelines for safe and proper repair procedures.

SAFETY CHECK AND LITHIUM BATTERY PRECAUTIONS

Procedures for safety confirmation and lithium battery handling.

DISASSEMBLY PROCEDURE

UNIT DISASSEMBLY STEPS

Step-by-step instructions for disassembling the VCR unit.

CONTROLS AND OPERATION

FRONT PANEL CONTROLS AND INDICATORS

Description of VCR front panel buttons, selectors, and indicators.

REMOTE CONTROL OPERATION AND SAFETY LOCK

Explanation of remote control functions and child lock feature.

PARTS IDENTIFICATION AND LISTING

PRINCIPAL PARTS LOCATION

Identification of key components from top and bottom views.

RECOMMENDED SPARE PARTS LIST

List of recommended parts for routine service.

MAJOR ASSEMBLY AND PCB PARTS LISTS

Parts lists for mechanical assemblies and printed circuit boards.

MECHANICAL ADJUSTMENTS

TAPE PATH AND HEAD ADJUSTMENTS

Adjustments for tape tension, loading leader, and head alignment.

LOADING AND CUEREVIEW ADJUSTMENTS

Adjustments for loading leader height, RF envelope, and cue review.

HEAD DRUM REPLACEMENT

REPLACEMENT AND POST-REPLACEMENT ADJUSTMENTS

Procedure for replacing the head drum and necessary subsequent adjustments.

ASSEMBLY PROCEDURES

LOADING MECHANISM ASSEMBLY STEPS

Instructions for assembling the VCR's loading mechanism components.

CIRCUIT EXPLANATIONS

POWER SUPPLY CIRCUIT EXPLANATION

Explanation of the VCR's power supply circuit operation.

ELECTRICAL ADJUSTMENT PROCEDURES

Detailed procedures for electrical adjustments on PCBs.

SCHEMATIC AND BLOCK DIAGRAMS

KEY CIRCUIT DIAGRAMS

Schematics for Y Signal Processing, CPU, Power, Operation, SYS-CON, Servo.

VIDEO AND CONNECTION DIAGRAMS

Schematics for Video, Connection, and PCB Layouts.

POWER AND PCB SCHEMATICS

Schematics for Power, SW Power, Operation, Main, Video, Pre-Amp PCBs.

REMOTE CONTROL UNIT SCHEMATIC

Schematic diagram for the RC-V240B remote control unit.