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Sansui AU-9900 Service Manual

Sansui AU-9900
24 pages
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Sansui AU-9900 Specifications

General IconGeneral
Power Output80 watts per channel into 8Ω (stereo)
Total Harmonic Distortion0.1%
Damping Factor80
Input Sensitivity2.5 mV (MM), 150 mV (line)
Channel Separation60 dB (line)
OutputPre out
Signal to Noise Ratio80 dB (MM), 100 dB (line)

Summary

Specifications

Adjustments

Driver Circuit Board Adjustments

Procedure for adjusting driver circuit boards for proper bias and DC offset.

Troubleshooting

Troubleshooting Chart

Step-by-step guide to diagnose and resolve common operational issues.

Operation Block Diagram

Visual representation of signal flow for troubleshooting the pre-amplifier section.

Parts Location and Parts List

F-2566 Power Supply Circuit Board Parts

Lists and locations of components on the F-2566 power supply board.

Schematic Diagram

AU-9900 Pre AMP. Section Schematic

Detailed circuit diagram for the pre-amplifier section of the AU-9900.

AU-9900 Power AMP. Section Schematic

Detailed circuit diagram for the power amplifier section of the AU-9900.

AU-11000 Pre AMP. Section Schematic

Detailed circuit diagram for the pre-amplifier section of the AU-11000.

AU-11000 Power AMP. Section Schematic

Detailed circuit diagram for the power amplifier section of the AU-11000.

F-2582, F-2583 Schematics

Schematics for the F-2582 and F-2583 circuit boards.

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