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Marantz cp430 Service Manual

Marantz cp430
19 pages
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Marantz cp430 Specifications

General IconGeneral
MotorDC Servo Motor
MicrophoneBuilt-in
Tape Speed4.75 cm/s
Wow and Flutter0.08% (WRMS)
InputsLine In
OutputsLine Out

Summary

INTRODUCTION

SHOCK, FIRE HAZARD SERVICE TEST

P.W. BOARDS

TEST EQUIPMENT REQUIRED FOR SERVICING

MECHANISM AND CIRCUIT DESCRIPTION

Muting System

Details on the muting circuit for reducing pops noise during power on/off.

Auto PLAY and Automatic Rewind Stop

Explanation of auto play and auto rewind stop functions based on tape movement.

Auto Stop

Description of the auto stop function that detects the end of the tape.

Pitch Control

Function of the pitch control for adjusting tape speed during playback.

ELECTRICAL ADJUSTMENTS

Head Azimuth Adjustment

Procedure to adjust head azimuth for maximum VTVM reading and channel alignment.

Tape Speed Adjustment

Method to adjust tape speed using a test tape and frequency counter.

Playback Equalizer Measurement

Procedure for measuring playback equalizer response with different tape types.

Playback Level Adjustment

Steps to adjust playback level for left and right channels to specified voltage.

Level Meter Adjustment

Procedure to adjust the level meter reading using a test tape.

Playback Noise Measurement

Method for measuring playback noise volume on blank tape.

MPX Filter Adjustment

Steps to adjust the MPX filter for signal processing.

Record/Playback Frequency Response and Recording Level Adjustment

Adjusting frequency response and recording levels for Normal, CrO2, and Metal tapes.

Alignment Points

Indicates specific alignment points on the printed circuit boards.

DIAGRAMS

Wiring Diagrams

Detailed wiring diagrams illustrating the electrical connections of the unit.

Chip Parts Component Locations

Diagrams showing the physical location of chip components on various PCBs.

Block/Level Diagrams

Block and level diagrams illustrating the signal flow and functional blocks.

EXPLODED VIEW AND PARTS LIST

FRONT PANEL AND GENERAL PARTS

Exploded view and parts list for front panel and general external components.

MAIN CASE AND GENERAL PARTS

Exploded view and parts list for the main case and general internal components.

ELECTRICAL PARTS LIST

PK01 Board Components (Capacitors, Resistors)

List of capacitors and resistors for the PK01 audio/main circuit board.

PK01 Resistors and Semiconductors

List of resistors and semiconductors for the PK01 circuit board.

Resistors and Semiconductors (RG, RK, RL, RU)

List of various resistors and semiconductors used in the unit.

PM02, PK02, PK03, PS01, PX01, PX02 Board Components

List of components for various circuit boards like PM02, PK02, PK03, PS01, PX01, PX02.

PJO1 and PM01 Board Components

List of components for the PJO1 tape EQ and PM01 boards.

Wiring and Adjustment Information

Details on wiring, assembly, and adjustment procedures for the unit.

TECHNICAL SPECIFICATIONS

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