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Sansui AU-G99X Service Manual

Sansui AU-G99X
16 pages
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Sansui AU-G99X Specifications

General IconGeneral
BrandSansui
ModelAU-G99X
CategoryAmplifier
LanguageEnglish

Summary

Specifications

Key Performance Metrics

Details power output, distortion, frequency response, and signal-to-noise ratio.

Input/Output and Controls

Covers input sensitivity, output level, tone controls, and filters.

Physical and Power Details

Details physical dimensions, weight, and power requirements.

Safety and Service Notes

Cautionary Symbols Explained

Explains symbols used in parts lists and schematic diagrams for safety.

Service Manual Abbreviations

Lists common abbreviations used throughout the service manual.

Block Diagram

Adjustment Procedures

Power Amplifier Circuit Adjustment

Details the steps and settings for adjusting the power amplifier circuit.

Power Meter Adjustment

Details the steps for adjusting the power meter brightness and level.

Parts Lists and Locations

Protector and Speaker Boards

Lists parts and component locations for Protector (L-CH, R-CH) and Speaker Selector boards.

Control Amplifier Board

Lists parts and component locations for the Control Amplifier circuit board.

Power Amp Circuit Boards

F-4296 Power Amp. Circuit Board

Lists parts and component locations for the Power Amp (L-CH) circuit board.

F-4553 Protector Circuit Board

Lists parts and component locations for the Protector circuit board.

F-4630 Equalizer Amp. Circuit Board

Lists parts and component locations for the Equalizer Amplifier circuit board.

Input and Control Circuit Boards

F-4631 Input Terminal Circuit Board

Lists parts and component locations for the Input Terminal circuit board.

F-4632 Input Selector Circuit Board

Lists parts and component locations for the Input Selector circuit board.

F-4635 Volume Board

Lists parts and component locations for the Volume control board.

Indicator and Supply Circuit Boards

F-4634 Control Amp. Circuit Board

Lists parts and component locations for the Control Amplifier circuit board.

F-4633 Input Indicator Circuit Board

Lists parts and component locations for the Input Indicator circuit board.

F-4637 Head Phones Circuit Board

Lists parts and component locations for the Head Phones circuit board.

Meter and Filter Circuit Boards

F-4636 Power Supply Circuit Board

Lists parts and component locations for the Power Supply circuit board.

F-4638 Power Meter Circuit Board

Lists parts and component locations for the Power Meter circuit board.

F-4640 Power Supply Circuit Board

Lists parts and component locations for the Power Supply circuit board.

Various Circuit Boards

F-4641 PHONO (MM/MC) Indicator Board

Lists parts and component locations for the PHONO indicator board.

F-4642 Protector Indicator Board

Lists parts and component locations for the Protector indicator board.

F-4723 LOUDNESS, MUTING, FILTER & BALANCE Circuit Board

Lists parts and component locations for the LOUDNESS, MUTING, FILTER, BALANCE board.

Driver and Meter Circuit Boards

F-4724 METER RANGE & DISPLAY Circuit Board

Lists parts and component locations for the METER RANGE & DISPLAY board.

F-4725 Fuse Board

Lists parts and component locations for the Fuse board.

F-4726 Driver Amp. (L-ch) Circuit Board

Lists parts and component locations for the Driver Amplifier (L-ch) circuit board.

Internal Block Diagrams

BA6148 Block Diagram

Shows the internal block diagram of the BA6148 integrated circuit.

TA7317P Block Diagram

Shows the internal block diagram and functions of the TA7317P protector IC.

M5219L, M5220L Block Diagram

Shows the internal block diagram of M5219L and M5220L audio pre-amplifier ICs.

Front and Top Views

Front View Component Identification

Identifies external front panel components with part numbers and descriptions.

Top View Component Identification

Identifies internal top view components with part numbers and descriptions.

Power Supply Section Details

Power Supply (UL, CSA Model)

Details the power supply section for UL and CSA models.

Packing List

Lists items included in the product packaging.

Accessory List

Lists included accessories, such as the operating instruction manual.

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