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JVC DR-E34BK

JVC DR-E34BK
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DR-E34BK
DR-E34LBK
JVC
SERVICE
MANUAL
STEREO
DOUBLE
CASSETTE
DECK
RECEIVER
DR-E34BK
MODEL
No. DR-E34LBK
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Contents
Page
Safety
Precautions
.......
.
..........
....
.
..
.
..................
1 - 2
Instruction
Book
........................
..
......................
1 - 3
Disassembly
Procedures
. . . . . . . . . . . . . . . .
..
. . . . . . . . . . . . . . . . . . . 1 -1 6
Explanation
of
System
Control
IC
....
.
...................
1-17
Description
of
Major
I
Cs
.....................................
1 -
18
Explanation
of
Other
I
Cs
.....
.
..............................
1-23
Internal
Connections
of
the
FL
Display
Tube
...
..
....
1-25
Adjustment
Procedures
(Cassette
Deck)
...............
1-
26
Page
Adjustment
Procedures
(Tuner
)
.....
..
.....
.
.....
..
.......
1-29
Connection
Diagrams
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.
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.
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.... 1
-30
Schematic
Diagrams
....
....
.
......
.. .
..
.
..........
.
...
.. In
sertio
n
Printed
Circuit
Boards
.....
..
......
.
......
..
....
.
..
.
....
.
Insert
i
on
Block
Diagrams
..
...
.
..
.
......
.
...........
..
......
...
.....
.
In
s
ertion
Parts
List
............
.
....
.
........
..
Separate-vo
l
ume
Insertion
No.
20162
Mar
.
1990
www.audiodna.sk
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JVC DR-E34BK Specifications

General IconGeneral
TypeCar Receiver
ModelDR-E34BK
BrandJVC
TunerAM/FM
Audio FormatsMP3, WMA
Output Power50W x 4
RMS Power Output22W x 4
Preamp Voltage2.5V
BluetoothNo
USB PortYes
Aux InputYes
DisplayLCD
DIN SizeSingle DIN
Detachable FaceYes
Number of Channels4
ID3 Tag DisplayYes
Number of AM Presets12
Number of FM Presets18
Remote ControlYes
Disc PlaybackCD

Summary

Safety Precautions

Important Safety Warnings

Critical safety instructions, warnings, and precautions for handling the equipment.

Schematic Diagrams

Tuner Section (1)

Circuit diagram for the tuner section, part one.

Tuner Section (2)

Cassette & Power Amplifier Section

SEA & System Control Section

Printed Circuit Boards

Tuner PC Board (ENA-094)

Layout diagram of the Tuner PC Board (ENA-094).

Cassette SW and Power Primary PC Board (ENB-101)

System Control and FL Display PC Board (ENC-073)

Cassette and AMP PC Board (ENJ-036)

Block Diagram

System Control & Audio Section

Block diagram illustrating system control and audio signal flow.

Tuner Section

Instruction Book Features

Connection Diagram

Diagram showing external connections for the receiver.

Antenna Setup and Connections

AM Antenna Setup

Instructions for installing AM loop and external antennas.

FM Antenna Setup

Instructions for connecting FM antennas, including coaxial and feeder types.

Antenna Setup and Connections

FM Connector Connection

Details for connecting 75-ohm and 300-ohm FM antennas.

Cord Connection and Beat Cut

Guidance on connecting cords and using the Beat Cut function.

Remote Control Operation

Using the 10 Keys

Instructions for using the 10-key pad for tuning and CD selection.

Remote Control Usage

Guidelines for operating the remote control with the main unit.

Description and Functions

Tuner Section Functions

Explanation of tuner section controls and indicators.

Amplifier Section Functions

Details on amplifier controls, indicators, and features.

Source Selectors and Indicators

Overview of input source selection and status indicators.

Remote Sensor and Indicators

Function of the remote sensor and status indicator lights.

Volume and Balance Controls

Explanation of volume and balance adjustment controls.

S.E.A. Graphic Equalizer

Description of the Sound Effect Amplifier graphic equalizer.

Cassette Deck Functions

Overview of cassette deck controls, indicators, and features.

Basic Operations

AM Channel Spacing

Selecting AM channel spacing based on regional requirements.

Basic Operation Steps

Step-by-step guide for powering on, selecting sources, and adjusting audio.

Operations: Listening to Broadcasts

Tuning Broadcasts

Methods for tuning AM/FM broadcasts: manual, auto, preset, and scan.

Preset Station Programming

Procedure for storing and recalling preset radio stations.

Tape Operations: Listening, Recording, Dubbing

Listening to Tapes

Instructions for loading and playing cassette tapes, including Dolby NR.

Tape Playback Controls

Controls for tape playback: pause, stop, continuous play, auto-reverse.

Recording Operations (Deck B)

Recording Procedures

Steps for recording audio onto cassette tape, including pause and stop.

S.E.A. Recording

Using the S.E.A. graphic equalizer for recording operations.

Dubbing Procedures (Deck A to Deck B)

Dubbing Methods

Instructions for normal and high-speed dubbing tapes between decks.

CD Direct Recording

Procedure for directly recording a CD onto cassette tape.

Edit Recording and Erasing

Edit Recording Features

Edit recording, mute intervals, and erasing cassette tapes.

Cassette Tape and Record Listening

Tape types, safety features, and instructions for playing records.

Maintenance Procedures

Head Cleaning

Procedure for cleaning cassette heads for optimal performance.

Pinch Roller, Capstan Cleaning, and Demagnetizing

Cleaning pinch rollers, capstans, and demagnetizing tape heads.

Specifications

Amplifier Section Specifications

Technical details for the amplifier section.

Tuner Section Specifications

Technical details for FM and AM tuner sections.

Cassette Section Specifications

Technical details for the cassette deck section.

Power and General Specifications

Power consumption, dimensions, weight, and general specs.

Disassembly Procedures

Removing Top Cover and Front Panel

Steps for removing the top cover and front panel assembly.

Removing Cassette Mechanism and Door

Procedures for removing the cassette mechanism and door.

Removing PC Boards and Controls

Steps for removing PC boards and controls like master volume.

System Control IC Explanation

HD614081 SB47 (IC501) Details

Detailed explanation of the system control IC, HD614081SB47.

Major IC Descriptions

LC6514 B-4245 (IC401): Tuner Controller

Description of the LC6514B-4245 tuner controller IC.

IC Terminal Layout, Key Matrix, and Pin Functions

IC terminal layout, key matrix, and detailed pin functions.

Deck System Controller IC (IC501)

HD614081 SB47 Terminal Layout & Key Matrix

Terminal layout and key matrix for the deck system controller IC.

Pin Function Description

Detailed description of each pin's function for the deck controller IC.

IC105: LA3401 FM MPX Detector

Main Function Descriptions

Key functions of the LA3401 FM MPX detector IC.

Top View & Block Diagram

Visual representation of the IC's top view and internal block diagram.

Pin Function Description

Detailed explanation of each pin's function for the LA3401 IC.

LA1266 A (IC104) FM AM IF AMP & Detector

Main Function Descriptions

Key functions of the LA1266A FM AM IF amplifier and detector IC.

Top View and Block Diagram

Visual representation of the IC's top view and its block diagram.

Pin Function Description

Detailed explanation of each pin's function for the LA1266A IC.

IC102: LC7218 PLL Synthesizer

Main Function Descriptions

Key functions of the LC7218 PLL synthesizer IC.

Terminal Layout, Block Diagram, and Pin Functions

IC terminal layout, block diagram, and detailed pin function descriptions.

Explanation of Other ICs

TC9163 N (IC581): Analog Switch IC

Description of the TC9163N analog switch IC.

GP1 U501 X (IC502): Remote Control Module IC

Description of the GP1U501X remote control module IC.

Key ICs and Components

HA12136 A (IC381): Noise Reduction Amplifier

Description of the HA12136A noise reduction amplifier IC.

PC1237 HA (IC002): Protector IC

Description of the μPC1237HA protector IC.

LB1639-CV (IC503): Motor Driver IC

Description of the LB1639-CV motor driver IC.

FL Display Tube Internal Connections

FL401 Display Tube Layout and Connections

Layout, pin connections, and anode table for the FL display tube.

Cassette Deck Adjustment Procedures

Measuring Instruments for Adjustment

List of necessary measuring instruments for cassette deck adjustments.

Mechanism Adjustment and Repair

Procedures for adjusting and repairing cassette deck mechanisms.

Cassette Deck Adjustments

Recording Level Adjustment

Procedure for setting the recording level for optimal audio quality.

Distortion and SN Ratio Checks

Methods for checking recording distortion and signal-to-noise ratio.

Erase Ratio and Auto-stop Checks

Procedures for checking erase ratio and auto-stop functionality.

Electrical Circuit Adjustments

Motor Speed Adjustments

Procedures for adjusting motor speed for normal and double speeds.

Playback and Recording Level Adjustments

Adjusting playback level and recording bias frequency.

Recording Frequency Response Adjustment

Procedure for adjusting the recording frequency response.

Tuner Alignment Procedures

Front-end Section Alignment

Alignment steps for the tuner's front-end section.

IF, Detection, and MPX Alignment

Alignment of the tuner's IF, detection, and multiplex sections.

LW Section Alignment

Alignment procedures for the LW tuner section, including antenna coil.

MW Section Alignment

Alignment procedures for the MW tuner section, including antenna coil.

Connection Diagram

Parts List Overview

General Exploded View and Parts List

Overall exploded view and comprehensive parts list.

Cassette Mechanism Parts List

List of parts for the cassette mechanism assembly.

Printed Circuit Board Parts Lists

Parts lists for various printed circuit boards (ENJ, ENC, ENA, ENB).

Accessories List

List of included accessories with the unit.

Packing Materials and Part Numbers

Details on packing materials and corresponding part numbers.

General Exploded View and Parts List

Main Parts List Details

Designated Areas Key

Key to understand regional designations for parts listed.

Cassette Mechanism Parts Lists

A Mechanism Parts List

Detailed parts list for the A mechanism of the cassette deck.

Cassette Mechanism Parts Lists

B Mechanism Parts List

Detailed parts list for the B mechanism of the cassette deck.

ENC-073 PC Board Parts List

Integrated Circuits (ICs)

List of integrated circuits used on the ENC-073 board.

Transistors

List of transistors used on the ENC-073 board.

Diodes

List of diodes used on the ENC-073 board.

Capacitors

List of capacitors used on the ENC-073 board.

ENA-099 Tuner PC Board Parts Lists

Integrated Circuits (ICs)

List of integrated circuits used on the ENA-099 board.

Transistors

List of transistors used on the ENA-099 board.

Diodes

List of diodes used on the ENA-099 board.

Capacitors

List of capacitors used on the ENA-099 board.

Resistors

List of resistors used on the ENA-099 board.

Others

List of other components used on the ENA-099 board.

ENA-094 Tuner PC Board Parts Lists

Integrated Circuits (ICs)

List of integrated circuits used on the ENA-094 board.

Transistors

List of transistors used on the ENA-094 board.

Diodes

List of diodes used on the ENA-094 board.

Capacitors

List of capacitors used on the ENA-094 board.

Resistors

List of resistors used on the ENA-094 board.

Others

List of other components used on the ENA-094 board.

ENB-101 PC Board Parts Lists

Diodes

List of diodes used on the ENB-101 board.

Others

List of other components used on the ENB-101 board.

Accessories List

Packing Materials and Part Numbers

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