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JVC MX-J950R User Manual

JVC MX-J950R
132 pages
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Table of Contents

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JVC MX-J950R Specifications

General IconGeneral
BrandJVC
ModelMX-J950R
CategoryStereo System
LanguageEnglish

Summary

Safety Precautions

General Safety Instructions

General safety instructions for handling the product and replacement parts.

Design Alteration Warning

Warning against unauthorized design alterations and their consequences.

Safety Characteristics Notes

Notes on safety-related characteristics and replacement parts.

Handling Leads Precautions

Precautions for handling leads, tubing, and barriers.

Leakage Current Check Procedure

Procedure for checking leakage current after reassembly.

Important Warning on Repair

Warning about proper repair and safety standards.

Important for Laser Products

Class 1 Laser Product Identification

Identifies the product as a Class 1 Laser Product.

Laser Radiation Danger Warning

Warning about laser radiation from open/defeated light-lock.

No Serviceable Parts Caution

Caution regarding no serviceable parts inside and not disassembling.

Laser Safety Switch Caution

Caution about compact player and safety switches.

Laser Radiation Prevention Caution

Caution regarding laser radiation prevention.

Controls and Adjustments Caution

Caution on controls, adjustments, and performance.

Warning Labels Display

Displays warning labels related to laser products.

Preventing Static Electricity

Grounding for ESD Protection

ESD precautions to prevent damage from static electricity.

Earth Processing for Laser Diode

Earth processing for laser diode, optical pick-up.

Workbench Grounding

Grounding the workbench for static discharge.

Personal Grounding

Using an anti-static wrist strap for grounding.

Optical Pickup Handling

Handling precautions for the optical pickup during installation.

Traverse Unit Handling

Precautions for handling the traverse unit due to shock sensitivity.

Traverse Unit Decomposition Notes

Special notes when the traverse unit is decomposed.

Precautions for Disassembly and Parts Replacement

Disassembly Steps: Metal Cover and Capacitor Discharge

Steps for removing metal cover and discharging capacitors.

Electrical Resistance Setting for Discharge

Setting electrical resistance for discharging capacitors.

Instructions for CA-MXJ950R

General Warnings and Cautions

General warnings, cautions, and notes for the user.

Product Registration and Support Information

Information regarding product registration and support contact.

Introduction to the Manual

Manual Purpose and Usage

Information about the manual's purpose and usage.

General User Precautions

General precautions to be taken by the user.

Operational Topics Overview

List of operational topics covered in the manual.

Location of Buttons and Controls

Front Panel Controls Identification

Identification of controls on the front panel.

Powered Front Panel Controls

Identification of controls on the powered front panel.

Display Window Indicators

Description of the display window indicators.

Remote Control Functions

Identification of controls on the remote control.

Getting Started with Operations

Unpacking Instructions

Instructions for unpacking the unit.

Connecting External Equipment

Steps for connecting external equipment.

Audio Connection for English Display

Guide for connecting audio devices for English display.

Remote Control Battery Installation

Instructions for installing batteries in the remote control.

FM Antenna Attachment

How to attach the FM antenna.

Clock Setting Procedures

Procedures for setting the clock.

Volume Adjustment Guide

How to adjust the volume.

Tone Control Adjustment

How to adjust the tone controls.

Source Selection Method

How to select the audio source.

Common Operations Guide

Power On/Off Steps

Steps to turn the unit on and off.

Detailed Clock Setting

Detailed steps for setting the clock.

FM/AM Radio Reception

How to tune into FM and AM radio stations.

Radio Station Tuning

Procedures for tuning into radio stations.

Preset Station Storage and Recall

How to store and recall preset stations.

FM Reception Mode Change

How to change FM reception mode.

RDS FM Station Reception

How to receive FM stations with RDS data.

Temporary Program Type Switching

Temporarily switching to program type.

PTY Code Changing for FM

How to change PTY codes for FM stations.

Playing Back CDs and Tapes

Basic CD Playback

Basic instructions for playing back CDs.

Selecting CD Tracks

How to select specific tracks on a CD.

Continuous CD Playback

Playing the entire disc continuously.

CD Loading Procedure

Steps to load CDs into the player.

Placing Additional CDs

Instructions for placing additional CDs.

Programming CD Playback Order

How to program the playback order of CDs.

Cassette Tape Playback

Instructions for playing back cassette tapes.

Basic Tape Playback

Steps to play back a cassette tape.

Modifying Programmed Playback

How to modify programmed playback.

Repeating Tracks or CDs

How to repeat tracks or entire CDs.

Song Music Search

Searching for the beginning of a song.

Recording Operations

Tape Recording on Deck B

How to record a tape on Deck B.

CD Direct Recording

Recording to tape or direct CD recording.

Speaker Protection Measures

Safety measures to protect speakers.

Optimal Recording Quality Tips

Tips for optimal recording quality.

Tape Dubbing Instructions

Instructions for dubbing tapes.

Recording Start Procedure

How to start recording.

Two-Sided Recording (Reverse Mode)

Recording on both sides in reverse mode.

Auto Edit Recording Procedure

How to perform auto edit recording.

Unit-Specific Recording Operations

Recording operations specific to the unit.

Using the Timer Functions

Daily Timer Usage Guide

How to use the daily timer function.

Timer Setting Steps

Steps to set the timer.

Setting Timer On-Time

How to set the timer's on-time.

Setting Timer Off-Time

How to set the timer's off-time.

Timer Cancellation Procedure

How to cancel or turn off the timer.

Unit-Specific Timer Operations

Timer operations specific to the unit.

Troubleshooting Common Issues

Component Handling Precautions

Precautions for handling components.

Assembly Handling Precautions

Precautions for handling assemblies.

Troubleshooting Guide: Problems and Solutions

Common troubleshooting issues and solutions.

Product Specifications

Amplifier Section Specifications

Technical specifications for the amplifier section.

CD Player Section Specifications

Technical specifications for the CD player section.

Cassette Deck Section Specifications

Technical specifications for the cassette deck section.

General Unit Specifications

General specifications of the unit.

Included Accessories List

List of supplied accessories.

Additional Product Information

Description of PTY Codes

Explanation of PTY codes used for FM stations.

Classification of PTY Codes

Categorization of PTY codes for FM stations.

Disassembly Method: Metal Cover and CD Changer

Removing the Metal Cover

Steps to remove the main metal cover of the unit.

Removing the CD Changer Mechanism Assembly

Procedures for detaching the CD changer mechanism assembly.

Disassembly Method: Front and Rolling Panels

Removing the Front Panel Assembly

Steps to detach the front panel assembly from the main unit.

Removing the Microphone Terminal Board

Procedures for removing the microphone terminal board.

Removing the Rolling Panel Assembly

Steps to detach the rolling panel assembly.

Disassembly Method: Main and Cassette Boards

Removing the Main Board

Procedures for detaching the main board from the unit.

Removing the Cassette Mechanism Assembly

Steps to detach the cassette mechanism assembly.

Disassembly Method: Front Panel Boards

Removing Boards in Front Panel Assembly

Procedures for removing various boards within the front panel.

Disassembly Method: Power, Eject, and Relay Boards

Removing Power, Eject, and Remote Control Boards

Steps to detach power, eject, and remote control boards.

Removing the Relay and Fixing Boards

Procedures for detaching relay and fixing boards.

Disassembly Method: Rear, Tuner, and I/O Boards

Removing the Rear Panel Assembly

Steps to detach the rear panel assembly.

Removing the Tuner Board

Procedures for detaching the tuner board.

Removing the Input/Output Board

Steps to detach the input/output board.

Disassembly Method: Fan Motor Assembly

Removing the Fan Motor Assembly

Steps to remove the fan motor assembly.

Disassembly Method: Rolling Cover/Rear Panel

Removing the Rolling Cover/Rear Panel Assembly

Procedures for removing the rear cover/panel assembly.

Disassembly Method: Preamplifier Board/Heat Sink

Removing the Preamplifier Board and Heat Sink

Procedures for removing the preamplifier board and heat sink.

Disassembly Method: Power & Main Amplifier Board

Removing the Power and Main Amplifier Board

Procedures for removing the power and main amplifier board.

Disassembly Method: Multicontrol Assembly/Board

Removing the Multicontrol Assembly

Procedures for removing the multicontrol assembly.

Removing the Multicontrol Board

Steps to remove the multicontrol board.

Disassembly Method: Drive Motor Assembly

Removing the Drive Motor Assembly

Procedures for removing the drive motor assembly.

Disassembly Method: CD Servo and Tray Assemblies

Removing the CD Servo Control Board

Procedures for removing the CD servo control board.

Removing the CD Tray Assembly

Steps to remove the CD tray assembly.

Disassembly Method: CD Mechanism Components

Removing the CD Loading Mechanism Assembly

Procedures for removing the CD loading mechanism.

Removing the CD Traverse Mechanism

Steps to remove the CD traverse mechanism.

Removing the CD Pickup Unit

Procedures for removing the CD pickup unit.

Disassembly Method: Cam Unit

Removing the Cam Unit

Procedures for removing the cam unit.

Disassembly Method: Actuator Motor and Belt

Removing the Actuator Motor and Belt

Procedures for removing the actuator motor and belt.

Disassembly Method: Cams and CG Base Assembly

Removing Cams R1/R2 Assembly and Cam Gear q

Procedures for removing cams and cam gear.

Removing the C.G. Base Assembly

Procedures for removing the C.G. base assembly.

Disassembly Method: Playback, Recording, Eraser Heads

Removing Playback, Recording, and Eraser Heads

Procedures for removing playback, recording, and eraser heads.

Disassembly Method: Head Amp. and Capstan Motor

Removing Head Amp. and Mechanism Control P.C. Board

Procedures for removing head amp and mechanism control P.C. board.

Removing the Capstan Motor Assembly

Steps to remove the capstan motor assembly.

Disassembly Method: Capstan Motor, Flywheel, Reel Pulse Board

Removing the Capstan Motor

Procedures for removing the capstan motor.

Removing the Flywheel

Steps to remove the flywheel.

Removing Reel Pulse P.C. Board and Solenoid

Procedures for removing reel pulse board and solenoid.

Adjustment Method and Requirements

Measurement Instruments for Adjustment

List of instruments needed for adjustment procedures.

Radio Input Signal Specifications

Specifications for radio input signal.

Frequency Range for AM and FM

Frequency ranges for AM and FM.

Standard Volume and Switch Positions

Standard settings for volume and switches.

Measurement Precautions

Important precautions during measurement.

Measurement Conditions Defined

Conditions for various measurements.

Arrangement of Adjusting Positions

Cassette Mechanism A Section Adjustments

Diagram showing adjustment positions for cassette mechanism A.

Cassette Mechanism Back Side Adjustments

Diagram showing adjustment positions on the back of cassette mechanism.

Cassette Mechanism Unit Adjustment Points

Diagram showing adjustment points within the cassette mechanism unit.

Tape Recorder Section Procedures

Head Angle Confirmation

Procedure to confirm head angle.

Tape Speed Confirmation

Procedure to confirm tape speed.

Reference Values for Confirmation Items

Double Tape Speed Reference Values

Reference values for double tape speed confirmation.

Forward/Reverse Speed Difference Reference

Reference values for speed difference.

Wow & Flutter Reference Values

Reference values for wow and flutter.

Electrical Items and Adjustments

Recording Bias Current Adjustment

Adjustment procedure for recording bias current.

Recording/Playback Frequency Characteristics Adjustment

Adjustment procedure for frequency characteristics.

Electrical Function Confirmation Reference Values

Reference values for electrical function confirmations.

Recording Bias and Playback Side Confirmation

Confirmation of recording bias and playback side.

Eraser Current Reference Value

Reference value for eraser current.

Diagnosis Using Extension Wire Method

System Control P.C. Board Diagnosis

Diagnosis procedure for the system control P.C. board.

Extension Wire Part Numbers

Part numbers for extension wires.

Functional Operation Flow Until TOC Read

Operational Flowchart to TOC Read

Flowchart detailing operational steps until TOC read.

Laser Pickup Maintenance

Laser Lens Cleaning Instructions

Instructions for cleaning the laser lens.

Laser Diode Life Symptoms

Symptoms related to laser diode life.

RF Output (Eye Pattern) Check

Checking RF output level for eye pattern.

Laser Pickup Replacement Procedure

Procedure for replacing the laser pickup.

Description of Major ICs

AN8806SB (IC601): RF & Servo AMP

Pin layout, block diagram, and pin functions for AN8806SB.

IC Descriptions: BA15218, BU4094BC, GP1U281X

Pin layouts and diagrams for BA15218, BU4094BC, GP1U281X ICs.

BA6897FP-W (IC801): 4channel Driver

Pin layout and functions for BA6897FP-W IC.

LA1838 (IC1): FM IF AMP & Detector

Block diagram and pin functions for LA1838 IC.

LC72136N (IC2): PLL Frequency Synthesizer

Pin layout, block diagram, and pin functions for LC72136N.

TDA7439 (IC436): Control Volume

Pin layout and block diagram for TDA7439 IC.

MN101CP35DEA (IC810): System Controller

Pin functions for MN101CP35DEA IC.

MN35510 (IC651): Digital Servo & Signal Processor

Terminal layout and block diagram for MN35510 IC.

BU4094BC (IC811): Serial to Parallel Port Extension

Pin layout and block diagram for BU4094BC IC.

LA72723 (IC3): RDS Demodulation

Pin layout and block diagram for LA72723 IC.

Block Diagrams

MAIN/CASSETTE/CD Section Block Diagram

Block diagram of the main, cassette, and CD sections.

Tuner Section Block Diagram

Block diagram of the tuner section.

Standard Schematic Diagrams

Power Transformer Section Schematic

Schematic diagram of the power transformer section.

Supply Block Schematics

AC230V ~50Hz Supply Block

Schematic for the AC230V supply block.

Overall Schema Explanation

Explanation of the overall schematic diagram.

Power Amplifier and Regulator Section

Schematic of Power Amplifier and Regulator

Schematic diagram of the power amplifier and regulator section.

Function and Amplifier Section

Schematic of Function and Amplifier

Schematic diagram of the function and amplifier section.

FL Display and System Controller Section

Schematic of FL Display and System Controller

Schematic diagram of the FL display and system controller section.

Microphone Amplifier Section

Schematic of Microphone Amplifier

Schematic diagram of the microphone amplifier section.

CD Servo and Mechanism Control Section

Schematic of CD Servo and Mechanism Control

Schematic diagram of the CD servo and mechanism control section.

Head Amplifier and Mechanism Control Section

Schematic of Head Amplifier and Mechanism Control

Schematic diagram of the head amplifier and mechanism control section.

Cassette Mecha Control Circuit

Schematic of Cassette Mecha Control Circuit

Schematic diagram of the cassette mecha control circuit.

Tuner Section Schematics

Tuner Section (Ver. B, E, EN)

Schematic diagram for the tuner section, specific versions.

Tuner Section (Ver. J, C, U)

Schematic diagram for the tuner section, specific versions.

Printed Circuit Boards Layouts

Main & Preampfifier Board Layout

Printed circuit board layout for main and preamplifier boards.

Input/Output & Power Board Layout

Printed circuit board layout for input/output and power boards.

CD Tray and Can Switch Boards Layout

PCB layouts for CD tray section and can switch boards.

CD Servo Control Board Layout

Printed circuit board layout for the CD servo control board.

Cassette Mechanism Board Layout

Printed circuit board layout for the cassette mechanism board.

Tuner Board Layout

Printed circuit board layout for the tuner board.

Parts List Overview

Parts List for MX-J900/MX-J950R

List of parts for the MX-J900 and MX-J950R models.

Parts List Contents

Table of contents for the parts list section.

Exploded Views and Parts Lists

General Assembly Exploded View

Exploded view of the general assembly with part identification.

Component Board Exploded Views

Exploded views for system, pre-amp, power amp, and tuner boards.

General Assembly Parts List

Parts for General Assembly

Detailed list of parts for the general assembly.

CD Changer Mechanism Parts

Exploded View and Parts List for CD Changer

Exploded view and parts list for the CD changer mechanism.

CD Mechanism Parts List

Parts for CD Mechanism Assembly

Parts list for the CD mechanism assembly.

Cassette Mechanism Parts

Exploded View and Parts List for Cassette Mechanism

Exploded view and parts list for the cassette mechanism.

Grease Points

Locations for Grease Application

Identification of points requiring grease during assembly.

Electrical Parts List: Power Amp and Source Select Board

Parts for Block 01

Electrical parts list for the power amp and source select board.

Electrical Parts List: System Control Board

Parts for Block 08

Electrical parts list for the system control board.

Electrical Parts List: CD Servo Board

Parts for Block 02

Electrical parts list for the CD servo board.

Electrical Parts List: Tuner Board

Parts for Tuner Board (Ver. J/C, Block 03)

Electrical parts list for the tuner board, Ver. J/C, Block 03.

Parts for Tuner Board (Ver. J/C, Block 04)

Electrical parts list for the tuner board, Ver. J/C, Block 04.

Electrical Parts List: Parts System Control Board

Parts for Block 05

Electrical parts list for the parts system control board.

Electrical Parts List: CD Servo Board (Block 06)

Parts for Block 06

Electrical parts list for the CD servo board, Block 06.

Electrical Parts List: CD Select Switch Board

Parts for Block 07

Electrical parts list for the CD select switch board.

Electrical Parts List: Head Amplifier Mechanism Control Board

Parts for Block 08

Electrical parts list for the head amplifier mechanism control board.

Electrical Parts List: Cassette Switch Board

Parts for Block 09

Electrical parts list for the cassette switch board.

Packing and Accessories Lists

Packing/Accessories for MX-J900

Packing materials and accessories for the MX-J900 model.

Packing/Accessories for CA/SP Models

Packing materials and accessories for other model variants.

Packing Parts List: MX-J900

Parts for MX-J900 Packing

List of packing parts for the MX-J900.

Packing Parts List: Other Models

Parts for CA/SP Models Packing

List of packing parts for CA and SP models.

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