Akai GX-225D

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PART SUSTEY

Akai GX-225D Specifications

General

Brand	Akai
Model	GX-225D
Category	Tape Deck
Language	English

Summary

SECTION 1 SERVICE MANUAL

I. SPECIFICATIONS

Details technical specifications including track system, tape speed, frequency response, and output levels.

II. MEASURING METHOD

Provides procedures for measuring tape speed deviation, wow/flutter, frequency response, and signal-to-noise ratio.

III. DISMANTLING OF UNIT

Visual guide showing steps for disassembling the tape deck unit.

IV. TRANSPORT MECHANISM

Explains the operation of the tape transport system in different modes.

V. MECHANISM ADJUSTMENTS

Details procedures for adjusting reel table height, pinch wheel pressure, and brake tension.

VI. HEAD ADJUSTMENTS

Provides instructions for adjusting head height and azimuth alignment.

VII. AMPLIFIER ADJUSTMENTS

Details adjustments for playback level, VU meter sensitivity, and recording bias.

VIII. AUTOMATIC NOISE REDUCTION AMPLIFIER ADJUSTMENTS (Model GX-225 D only)

Covers adjustments and operation for the Automatic Noise Reduction amplifier.

IX. COMPOSITE VIEWS OF COMPONENTS

Shows composite views of various P.C. boards and components.

SECTION 2 PARTS LIST

How to Use This Parts List

Guide on how to interpret and use the parts list effectively for ordering.

ELECTRICAL PARTS TABLE

Displays images and types of various electrical components like resistors and capacitors.

MS HEAD BLOCK

Detailed list of parts for the MS Head Block assembly.

MAIN MOTOR BLOCK

Detailed list of parts for the Main Motor Block assembly.

SWITCH BLOCK

Detailed list of parts for the Switch Block assembly.

SYS. CON. P.C. BOARD (MR-504) BLOCK

Detailed list of parts for the System Control P.C. Board.

TONE CONTROL P.C. BOARD (MS-5028) BLOCK

Detailed list of parts for the Tone Control P.C. Board.

OSC. P.C. BOARD (MS-5025) BLOCK

Detailed list of parts for the Oscillator P.C. Board.

EQUALIZER P.C. BOARD (MS-5027) BLOCK

Detailed list of parts for the Equalizer P.C. Board.

SRT P.C. BOARD (MS-5029) BLOCK

Detailed list of parts for the SRT P.C. Board.

TRACK SELECTOR P.C. BOARD (MS-5055) BLOCK

Detailed list of parts for the Track Selector P.C. Board.

POWER SUPPLY P.C. BOARD (MS-5030) BLOCK

Detailed list of parts for the Power Supply P.C. Board.

AMPLIFIER ASSEMBLY BLOCK

Detailed list of parts for the Amplifier Assembly Block.

INDEX

Alphabetical index of all parts numbers and their references.

SECTION 3 SCHEMATIC DIAGRAM

GX-225 D SCHEMATIC DIAGRAM

Schematic diagram for the GX-225D model.

GX-221 SCHEMATIC DIAGRAM

Schematic diagram for the GX-221 model.

GX-221 D SCHEMATIC DIAGRAM

Schematic diagram for the GX-221D model.