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Sony HCD-VX8 Service Manual

Sony HCD-VX8
84 pages
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HCD-VX8/VX8J
E Model
SPECIFICATIONS
Photo: HCD-VX8 (SILVER)
COMPACT DISC DECK RECEIVER
— Continued on next page —
Model Name Using Similar Mechanism HCD-GRX80/RXD8/RXD8S
CD Mechanism Type CDM38L-5BD34L
Base Unit Type BU-5BD34L
Optical Pick-up Type KSS-213D/Q-NP
Model Name Using Similar Mechanism HCD-GRX80/RXD8/RXD8S
Tape Transport Mechanism Type TCM-230AWR2/230PWR2
CD
SECTION
TAPE DECK
SECTION
MICROFILM
SERVICE MANUAL
HCD-VX8/VX8J is the tuner, deck, CD and
amplifier section in MHC-VX8/VX8J.

Table of Contents

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Sony HCD-VX8 Specifications

General IconGeneral
CD PlayerYes
TunerYes
Cassette DeckYes
Cassette Deck TypeDual
USB PortNo
FunctionsCD, Tuner, Cassette
Speaker Type2-way
SpeakersIncluded

Summary

SPECIFICATIONS

Amplifier Section

Details of power output, inputs, and outputs for the amplifier circuit.

CD/CD Player Section

Specifications for the CD player, including laser, wavelength, response, and noise ratio.

Tuner Section

FM/AM superheterodyne tuner specifications, tuning ranges, and antenna details.

SECTION 1 SERVICING NOTE

How to Open Disc Tray

Procedure for opening the disc tray when the power switch is off.

CD-TEXT Function

Information about the CD-TEXT display function and its limitations.

SECTION 2 GENERAL

Location of Parts and Controls

Identifies all buttons, knobs, jacks, and indicators on the front panel.

SECTION 3 DISASSEMBLY

Front Panel and Video Board Disassembly

Steps to detach the front panel and access the video board.

Cassette Lid and Tape Mechanism Disassembly

Instructions for removing the cassette lid and tape mechanism assembly.

Disc Tray Disassembly

Procedure for removing the disc tray from the unit.

SECTION 4 SERVICE MODE

MC Cold Reset / CD Delivery Mode

Service modes for resetting memory and preparing for delivery.

Sled Servo Mode / AM Tuner Step Change

Service modes for CD sled motor control and AM tuner step adjustment.

LED and Fluorescent Indicator Tube All Lit Mode

Mode to test all LEDs and the fluorescent indicator tube.

SECTION 5 TEST MODE

Video CD Color-Bars Mode

Test mode for outputting color bars and audio for video signal check.

SECTION 6 MECHANICAL ADJUSTMENTS

Torque Measurement

Specifies torque values for various mechanical parts during adjustment.

SECTION 7 ELECTRICAL ADJUSTMENTS

Record/Playback Head Azimuth Adjustment

Procedure for adjusting the head azimuth for optimal audio playback and recording.

Tape Speed Adjustment

Steps to adjust tape speed for both normal and double speed modes.

Record Bias Adjustment (Deck B)

Process for adjusting recording bias levels on the tape deck.

SECTION 8 DIAGRAMS

Circuit Boards Location

Illustrates the physical placement of all circuit boards within the unit.

Block Diagrams (CD, Video, Deck Sections)

High-level diagrams showing functional blocks of CD, Video, and Deck sections.

Schematic Diagrams (Main Sections)

Detailed circuit schematics for the Main section of the unit.

Printed Wiring Boards (CD, Deck, Video Sections)

Layout diagrams showing component placement on CD, Deck, and Video PCBs.

SECTION 9 EXPLODED VIEWS

Case Section Exploded View

Exploded diagram showing the main external casing components.

Front Panel Section Exploded View

Exploded diagram detailing the front panel parts and their assembly.

CD Mechanism Deck Section Exploded Views

Exploded views of the CD mechanism deck components.

SECTION 10 ELECTRICAL PARTS LIST

Audio Board Parts List

List of electrical components for the audio board.

Main Board Parts List

Comprehensive list of components for the Main board, including diodes and connectors.

Video Board Parts List

Parts list for components on the Trans and Video boards.

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