Luxman M-05 Service Manual

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Luxman M-05 Specifications

General

Type	Power Amplifier
Input Impedance	50 kOhms
Signal to Noise Ratio	120 dB
Output Power (4 ohms)	150W
Frequency Response	10Hz - 100kHz
Weight	18.0kg
Input Sensitivity	1V / 47k ohms

Summary

Block Diagram

Adjustment Locations

Adjustment Procedures

Alignment of Idling Current

Procedure to adjust the idling current for the amplifier channels.

Alignment of DC Offset

Steps to calibrate the DC offset voltage for speaker terminals.

Alignment of Regulator Voltage

Procedure to set the correct regulator voltage levels.

Alignment of BTL Amp Voltage

Adjustment steps for BTL amplifier voltage configuration.

Alignment of DC Offset on BTL Connection

Calibrating DC offset for BTL mode.

Alignment of Meters

Procedure to calibrate the front panel meters.

PCB Diagrams

BTL SW PCB Diagram

Schematic layout of the BTL Switch PCB.

Direct SW PCB Diagram

Schematic layout of the Direct Switch PCB.

Power PCB L/R Diagrams

Pre Heat SW PCB Diagram

Signal & Subsonic PCB Diagram

Meter Drive PCB L/R Diagrams

Peak Hold PCB L/R Diagrams

LED PCB L/R Diagrams

VR Control PCB L/R Diagrams

Fan Speed SW PCB Diagrams

Specifications

Schematic Diagram (1)

Schematic Diagram (2)