Akai SR-425 User Manual

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DIGITAL AUDIO
MINI STEREO COMPONENT SYSTEM
MODEL
AC-220/SR-225
MODEL AC-320/SR-425

Akai SR-425 Specifications

General

Tuning range	FM, MW
Total Harmonic Distortion	0.5%
Frequency Response	20Hz to 20kHz
Input Sensitivity	2.5mV (MM)
Speaker load impedance	4Ω to 16Ω
Semiconductors	Transistors: 22

Summary

SAFETY INSTRUCTIONS

PRECAUTIONS DURING SERVICING

Safety guidelines for servicing, including wiring and insulation.

PRECAUTIONS IN REPAIRING

Precautions for repair and adjustment, including laser safety and handling.

SPECIFICATIONS

TUNER SECTION SPECIFICATIONS

Technical specifications for the tuner section.

AMPLIFIER SECTION SPECIFICATIONS

Technical specifications for the amplifier section.

DECK SECTION SPECIFICATIONS

Technical specifications for the tape deck section.

CD SECTION SPECIFICATIONS

SPEAKER SECTION SPECIFICATIONS

CONTROLS

MAIN UNIT CONTROLS

Identification and description of controls on the main unit.

DISASSEMBLY

REMOVING THE MAIN COVER

REMOVING CD MECHA AND FRONT PANEL

CD PLAYER BLOCK

CD PLAYER DISASSEMBLY

REMOVAL OF TRAVERSE MECHA

REPLACEMENT OF SLED MOTOR

REPLACEMENT OF PICK UP BLOCK

REPLACEMENT OF LOADING MOTOR

REMOVAL OF TRAY BLOCK

REPLACEMENT OF TABLE MOTOR

ELECTRICAL ADJUSTMENT

CASSETTE DECK ADJUSTMENT

Procedures for electrical adjustments on the cassette deck.

HEAD AZIMUTH ALIGNMENT

CD ELECTRICAL ADJUSTMENT

Procedures for electrical adjustments on the CD player.

FOCUS BIAS ADJUSTMENT

PARTS LIST

CD MECHANISM PARTS

SPEAKER SYSTEM SR-425

SPEAKER SYSTEM SR-225

BLOCK DIAGRAM

WIRING DIAGRAM

SCHEMATIC DIAGRAM

REMOTE HANDSET MANUAL