Marantz PM410 Service Manual

Marantz PM410 Service Manual

Stereo console amplifier

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MARANTZ
PM250/400/410
MODEL
SERVICE MANUAL

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Summarization of Contents

Marantz Design and Service
Ordering Parts
Details how to order Marantz replacement parts via phone or mail.
Overseas Parts Ordering
Lists international Marantz parts distribution centers.
Troubleshooting and Adjustments
Excessive Line Consumption
Diagnosing and resolving problems related to power consumption.
Bias Voltage and Power Issues
Troubleshooting steps for lack of power or zero bias voltage.
Hum and Noise Troubleshooting
Steps to identify and fix hum and noise problems in the audio signal.
Idling Current Adjustment
Procedure for setting the idling current in the power amplifier stage.
Power Meter Calibration
Steps to correctly adjust the power meter display.
Test Equipment and Setup
Required Test Equipment
A list of essential test equipment for servicing the unit.
Performance Verification Setup
Initial procedures and test setup for performance verification.
Audio Performance Testing
Hum and Noise Measurement
Method for measuring total hum and noise levels in the audio output.
Maximum Power Output Test
Procedure to determine the amplifier's maximum power output.
Harmonic Distortion Test
Steps to measure the total harmonic distortion of the audio signal.
Diagrams and Component Locations
LED Power Meter Assembly (PX00)
Schematic and component layout for the PX00 LED Power Meter assembly.
Main Assembly (P700)
Schematic and component layout for the P700 Main assembly.
LED Lamp Assembly (PYOO)
Schematic and component layout for the PYOO LED Lamp assembly.
Loudness Assembly (PS00)
Schematic and component layout for the PS00 Loudness assembly.
Microphone Amplifier (PJ00)
Schematic and component layout for the PJ00 Microphone Amplifier assembly.
Diagrams and Component Locations (Continued)
Tone Assembly (PFOO)
Schematic and component layout for the PFOO Tone assembly.
Volume Assembly (PGOO)
Schematic and component layout for the PGOO Volume assembly.

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