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Technics RS-M225

Technics RS-M225
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Technics RS-M225 Specifications

General IconGeneral
BrandTechnics
ModelRS-M225
CategoryCassette Player
LanguageEnglish

Summary

Specifications

Location of Controls and Components

Disassembly Instructions

Explanation of Auto Tape Selector

Mechanical Section

Explains the physical mechanism for automatic tape type detection.

Electrical Section

Details the circuitry involved in auto tape selection.

Measurement and Adjustment Methods

Tape Selector Mode Switching

Describes how to manually set tape modes for testing without detection holes.

Head Azimuth Adjustment

Procedure for aligning the playback/record head for optimal sound.

L-chR-ch Output Balance Adjustment

Steps to ensure equal audio levels between left and right channels.

L-chR-ch Phase Adjustment

Method to align the phase between left and right audio channels.

Tape Speed Accuracy

How to measure and verify the tape playback speed.

Tape Speed Fluctuation

Procedure to measure and assess variations in tape speed.

Playback Frequency Response

How to measure the audio frequency range during playback.

Playback Gain

Method for checking and adjusting the playback signal level.

Erase Current

Procedure to measure and adjust the erase head current.

Overall Frequency Response

How to measure the frequency response across all modes.

Recording Bias Current Adjustment

Adjusting bias current to optimize recording frequency response.

Overall Gain Measurement

How to measure the overall signal gain in different modes.

Fluorescent Meter Calibration

Procedure for adjusting the FL meter display levels.

Dolby NR Circuit Verification

How to check the performance of the Dolby Noise Reduction circuit.

How to Repair Printed Resistors

Electrical Parts Location

Replacement Parts List

Schematic Diagram

Mechanical Parts Location

Cabinet Parts Location

Block Diagram

Circuit Boards and Wiring Connection Diagram

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