Akai GX-F51 Service Manual

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STEREO CASSETTE DECK
MODEL GX-f 31
MODEL GX-F51
MODEL GX-F71

Akai GX-F51 Specifications

General

Type	Cassette Deck
Track System	4-track, 2-channel stereo
Tape Speed	4.76 cm/s
Total Harmonic Distortion	0.5 %
Output Level (LINE)	0.775 V
Tape Type	Type I, Type II
Frequency Response (Metal Tape)	20Hz to 20kHz
Frequency Response (Normal Tape)	20Hz to 17kHz
Signal-to-Noise Ratio (Dolby B ON)	74 dB
Input (line)	77.5mV
Input (mic)	0.25mV
Output (line)	0.775V

Summary

Safety Instructions

Safety Check After Servicing

Verifies insulation resistance after servicing for safety.

Precautions During Servicing

Guidelines for safe servicing procedures and component handling.

SECTION 1 CIRCUIT OPERATION DESCRIPTION

GX-F71 Auto Tuning Function Description

Detailed explanation of the auto tuning process and its stages.

GX-F71 Syscon Circuit Functions

Overview of system control circuit functions and their roles.

GX-F51 Circuit Description

SECTION 5 PARTS LIST

GX-F31 Recommended Spare Parts

List of recommended spare parts for the GX-F31 model.

Mecha Block Parts

Motor Block Parts

Pre Amp P.C Board Block Parts

Sys. Con. P.C Board Block Parts

II. MODEL GX-F51 RECOMMENDED SPARE PARTS

GX-F51 Mecha Block Parts

GX-F51 Motor Block Parts

GX-F51 Pre Amp P.C Board Block Parts

GX-F51 Sys. Con. P.C Board Block Parts

Ill. MODEL GX-F71 RECOMMENDED SPARE PARTS

GX-F71 Mecha Block Parts

GX-F71 Motor Block Parts

GX-F71 Pre Amp P.C Board Block Parts

GX-F71 Sys. Con. P.C Board Block Parts

SECTION 6 SCHEMATIC DIAGRAM

GX-F31 Power & Syscon Schematic Diagram

Schematic for GX-F31 power supply and system control circuits.

GX-F31 Amplifier Schematic Diagram

Schematic for GX-F31 amplifier circuits.

GX-F51 Power Supply & Syscon Schematic Diagram

Schematic for GX-F51 power supply and system control circuits.

GX-F51 Amplifier Schematic Diagram

Schematic for GX-F51 amplifier circuits.

GX-F51 Tuning Schematic Diagram

Schematic for GX-F51 tuning circuit.

GX-F71 Power Supply & Syscon Schematic Diagram

Schematic for GX-F71 power supply and system control circuits.

GX-F71 Amplifier Schematic Diagram

Schematic for GX-F71 amplifier circuits.

GX-F71 Tuning Schematic Diagram

Schematic for GX-F71 tuning circuit.