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Sansui AU-X711 Service Manual

Sansui AU-X711
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Sansui AU-X711 Specifications

General IconGeneral
Power Output90 watts per channel into 8Ω (stereo)
Frequency ResponseDC to 300kHz (±3 dB)
Damping Factor100
Input Sensitivity (Line)150 mV
Signal-to-Noise Ratio100 dB
Dimensions430 x 152 x 403mm
Weight13.2kg
Channel separation70 dB
Input sensitivity2.5mV (MM), 250mV (line)
Signal to noise ratio85dB (MM), 110dB (line)
Speaker load impedance4Ω - 16Ω

Summary

Service Manual CAUTION

Technical Specifications

Power Output and Impedance

Details RMS and DIN power output into different impedances.

Frequency Response and Input Sensitivity

Lists frequency response and input levels/impedances.

Signal-to-Noise Ratio and Controls

Details SNR for inputs and control frequency responses.

Power Requirements, Dimensions, and Weight

Specifies power consumption, physical dimensions, and unit weight.

Block Diagram Overview

Signal Flow and Components

Illustrates signal paths for EQ, Tone Control, Amplifier, and Power Amp sections.

Adjustment Procedures

F-6160 Driver AMP Adjustment

Adjusts HOT/GND and HOT/COLD balance on the driver amplifier board.

F-6154 Flat AMP Adjustment

Adjusts HOT/COLD balance on the flat amplifier board.

F-6169 Power AMP Balance Current Adjustment

Adjusts bias current for HOT and COLD amplifier sections.

Parts List by Board

Parts List by Board (Continued)

Schematic Diagrams

EQ & Control Amp Section Schematic

Provides the schematic for the EQ and Control Amplifier sections.

Power Amp & Power Supply Section Schematic

Details the schematic for the Power Amplifier and Power Supply sections.

Internal Block Diagram and Parts Replacement

Main Parts Replacement Procedures

Provides instructions for replacing major components like the driver amp board and front panel.

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