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Akai 1722W Service Manual

Akai 1722W
46 pages
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Akai 1722W Specifications

General IconGeneral
Reel SizeUp to 7 inch reel
Signal-to-Noise Ratio50dB
Total Harmonic Distortion1.5%
InputsMicrophone, Line
TypeReel to Reel
Track System4-track, 2-channel stereo/monaural system
Tape Speed3.75 & 7.5 ips
Wow and Flutter0.08% (7.5 ips)
Semiconductors6 Diodes
Power SupplyAC 110-120V, 220-240V, 50/60Hz
OutputsLine

Summary

Service Manual

Specifications

Detailed technical parameters and performance characteristics of the tape recorder.

Measuring Method

Procedures for testing tape speed, wow, flutter, frequency response, and signal-to-noise ratio.

Dismantling of Unit

Step-by-step instructions for safely disassembling the tape recorder unit.

Mechanism Adjustment

Guidelines for adjusting critical mechanical components like pinch wheels and reel tensions.

Head Height Adjustment

Procedures for aligning and setting the height of the erase and playback heads for optimal performance.

Amplifier

Checks and adjustments for the audio amplifier section, including bias and voltage levels.

D.C. Resistance of Various Coils

Table listing the DC resistance values for various coils used in the unit.

Composite Views of Components

Visual references showing the arrangement and identification of components.

Parts List

Table of Contents for Parts

Index of component blocks and their corresponding page numbers within the Parts List section.

Schematic Diagram

1722W Schematic Diagram

Detailed circuit diagram for the 1722W model, illustrating electronic connections.

1722L Schematic Diagram

Detailed circuit diagram for the 1722L model, illustrating electronic connections.

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