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Akai AC-M2 User Manual

Akai AC-M2
34 pages
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STEREO
DECK
RECEIV
ER
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a
BAND.
FMMUTE
MODE
SPEAKER
PHONES
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TAGE
METAL
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REM
AUTO
ON:
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MONO
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OFF
move.
AC-M2
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Akai AC-M2 Specifications

General IconGeneral
TypeStereo Receiver
Tuning rangeFM, MW
Frequency response20Hz to 20kHz
Input sensitivity2.5mV (MM), 150mV (line)
Signal to noise ratio70dB (MM)

Summary

SECTION 1 SERVICE MANUAL

I. SPECIFICATIONS

Detailed technical specifications for FM, AM, Deck, Power Amplifier, and Pre-Amplifier sections.

II. DISMANTLING OF UNIT

Step-by-step visual guide for disassembling the stereo deck receiver unit.

III. CONTROLS

Identification and description of all front and rear panel controls and their functions.

IV. PRINCIPAL PARTS LOCATION

Diagrams showing the location of key internal components and PCBs within the unit.

V. MECHANICAL ADJUSTMENT

Procedures for measuring and adjusting pinch roller pressure, winding torque, and tape speed.

VI. ELECTRICAL ADJUSTMENT

Adjustment points and procedures for AM, FM, and Cassette Deck sections.

VII. CLASSIFICATION OF VARIOUS P.C BOARDS

Lists and identifies various printed circuit boards used in the unit with their numbers.

SAFETY INSTRUCTIONS

SAFETY CHECK AFTER SERVICING

Guidelines for confirming insulation resistance and electrical safety after service.

PRECAUTIONS DURING SERVICING

Critical safety precautions and part replacement guidelines for technicians.

SECTION 2 PARTS LIST

ATTENTION AND USAGE GUIDE

Important notes on part ordering, usage of the parts list, and warnings.

RECOMMENDED SPARE PARTS

A curated list of essential spare parts recommended for stock.

MECHA BLOCK (1/2) PARTS

Parts breakdown for the first half of the mechanical cassette deck section.

MECHA BLOCK (2/2) PARTS

Parts breakdown for the second half of the mechanical cassette deck section.

MAIN P.C BOARD BLOCK PARTS

Parts list for the main printed circuit board.

CIRCUIT BOARD PARTS

Parts lists for Phono, VR, Speaker, Beat, and LED circuit boards.

ASSEMBLY BLOCK PARTS

Parts list for assembly-related items and connectors.

FINAL ASSEMBLY BLOCK PARTS

List of parts related to the final assembly and external controls.

SECTION 3 SCHEMATIC DIAGRAM

SCHEMATIC DIAGRAM OF ICs

Internal block diagrams and pinouts for integrated circuits used in the receiver.

AC-M2 MAIN SCHEMATIC DIAGRAM

Comprehensive circuit diagram for the AKAI AC-M2 stereo deck receiver.

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