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Sansui BA-3000 Service Manual

Sansui BA-3000
16 pages
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SERVICE
MANUAL
POWER
AMPLIFIER
SANSUI
BA-3000
SANSUI
ELECTRIC
CO.,
LTD.
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Sansui BA-3000 Specifications

General IconGeneral
TypeStereo Power Amplifier
Speaker Load Impedance4Ω to 16Ω
Power Output150 watts per channel into 8Ω (stereo)
Frequency Response10Hz to 30kHz
Total Harmonic Distortion0.1%
Signal to Noise Ratio100dB

Summary

Specifications

Block Diagram

Adjustments

Driver Circuit Board Adjustments

Details adjustments for the driver circuit board, including DC OV and bias current.

Power Meter Adjustment

Details the procedure for adjusting the power meter for accurate readings.

Troubleshooting Chart

Operation Block Diagram

Illustrates the operational flow of the unit's various sections for troubleshooting.

Main Troubleshooting on Each Section

Provides a systematic guide for diagnosing and resolving common issues by section.

Parts Locations and Parts Lists

F-2507 Driver Circuit Board

Lists parts and their locations for the F-2507 driver circuit board.

F-2511 SP Protector Circuit Board

Lists parts and their locations for the F-2511 speaker protector circuit board.

F-2510 Circuit Board for installing emitter

Lists parts for the F-2510 circuit board for emitter installation.

F-2514 Meter Lamp Circuit Board

Lists parts for the F-2514 meter lamp circuit board.

F-2506 Input Terminal Circuit Board

Lists parts for the F-2506 input terminal circuit board.

F-2512 Connector Circuit Board

Lists parts for the F-2512 connector circuit board.

F-2513 Filter Circuit Board

Lists parts and their locations for the F-2513 filter circuit board.

F-2508 Power Supply Voltage Circuit Board

Lists parts and their locations for the F-2508 power supply voltage circuit board.

F-2515 Meter Amplifier Circuit Board

Lists parts and their locations for the F-2515 meter amplifier circuit board.

F-2509 Circuit Board for installing connector

Lists parts for the F-2509 circuit board for installing the connector.

Figures

Visual representations of semiconductors and connectors used in the unit.

Power Supply Voltage changeover

Instructions on how to change AC line voltage connections.

Other Parts (Top, Bottom Side)

Identifies various internal and external components by location.

Other Parts (Front Side)

Illustrates the location of front panel components and hardware.

Schematic Diagram

Packing List

Accessory Parts List

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