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Sansui AU-777 User Manual

Sansui AU-777
26 pages
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Sansui AU-777 Specifications

General IconGeneral
Total Harmonic Distortion0.8%
Signal to Noise Ratio85dB
Weight12kg
Speaker Load Impedance4Ω to 16Ω
Frequency Response20Hz to 20kHz
Input Sensitivity2.5mV (MM)
Channel Separation50dB
TypeSolid State
Power Output25W per channel into 8Ω (stereo)

Summary

AMPLIFIER TROUBLESHOOTING CHART

OVER ALL PROGRAM SOURCES

Troubleshooting symptoms and causes applicable to all audio sources.

FOR USE WITH A RECORD PLAYER (MAGNETIC) OR A TAPE DECK

Specific troubleshooting guidance for record players and tape decks.

OTHER PROGRAM SOURCES

Troubleshooting for various input sources like Tuner, AUX.

PRINTED CIRCUIT SHEETS

HEAD AMPLIFIER (TRHA-6B)

Component layout and identification for the Head Amplifier circuit.

PRE-AMPLIFIER (TR-70A)

Component layout and identification for the Pre-Amplifier circuit.

SELECTOR CHART

FUNCTION

Details on selector switch positions for various audio functions.

SPEAKERS SWITCH

Details on selector switch positions for speaker output selection.

ALIGNMENT

MAIN-AMP SECTION OUTPUT ADJUSTMENT

Step-by-step procedure for adjusting main amplifier output levels.

MAIN-AMP SECTION CURRENT ADJUSTMENT

Step-by-step procedure for adjusting main amplifier current.

PARTS LAYOUT

TOP VIEW OF UPPER CHASSIS

Visual diagram of component placement on the upper chassis.

TOP VIEW OF BACK PANEL

Visual diagram of component placement on the back panel.

TOP VIEW OF LOWER CHASSIS

Visual diagram of component placement on the lower chassis.

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