Product: Service Manual. For Marantz 4400 Stereo 2+ Quadradial 4 Receiver. Service Manual only, not a receiver. Approximately 62 pages.
Table of contents:
Introduction
Service Notes
AM Tuner
FM Tuner
Phono & Preamplifier
Dolby Unit
400hz Tone
Dolby NR Switch
Record Level L/R
Play Cal. L/B
Dolby FM Preset Level Controls
400hz Tone Switch
FM De-Emphasis Switch
Hi-Low Filter Amplifier
Power Amplifier
BTL (Balanced Transformer-Less) Connection
Power Supply Circuit
Audio Trouble Analysis
Scope Display Circuit
Scope Circuit Description
Trouble Shooting of Oscilloscope Circuit
Test Equipment Required for Servicing
Scope Display Alignment
AM Tuning Display Alignment
FM Tuning Display Alignment
AM Alignment Procedures
FM Alignment Procedures
Audio Adjustment
Automatic Voltage Regulator Adjustment
Dolby Alignment Procedure
Alignment Procedures of Dolby FM Preset Level controls
Explanation of the Dolby Processing Chart
Parts List
Technical Specifications
List of Illustration
Block Diagram of the HA1156
Dial Stringing
Dolby Alignment Implement simplified schematic
Front Panel Adjustment and component locations
Main Chassis component locations (bottom view)
Rear Panel Adjustment and component locations
Main Chassis component locations (top view)
FM Front End Assembly P100 component locations
AM Tuner assembly P150 component locations
FM IF Amplifier Assembly P200 component locations
MPX Stereo Decoder, Noise & DC Amplifier Assy P300 comp locations
Phono Amplifier Assembly P400 component locations
Vari-Matrix assembly P500 component locations
Dolby Unit Assembly P600 component locations
Power Amplifier Assembly P700 component locations & schematic diagram
Power Supply Assembly P800 component locations
Scope Display Amplifier Assembly P900 component locations
FM Cal. Assembly PC01 component locations
Tone Amplifier Assembly PD01 component locations
Buffer and Pre-Amplifier Assembly PE01 component locations
Tone Control Unit and Diode Matrix Assembly PF01 component locations
Balance Control Unit Assembly PG01 component locations
Filter Amplifier Assembly PH01 component locations
400Hz Oscillator and Meter Driver Assy PL01 component locations
Phase Converter Assy PM01 component locations
Speaker Protector Assembly PN01 component locations
Fuse unit assembly PP01 component locations
Switch unit assembly PS01 component locations
Switch unit assembly PT01 component locations
FM De-emphasis Assembly PU01 component locations
Dolby terminal assembly PV01 component locations
Headphone assembly PW01 component locations
Meter lamp assembly PX01 component locations
Selector lamp assembly PY01 component locations
Dial lamps assembly PZ01 component locations
Exploded Mechanical Diagram
Schematic Diagram
Table
Test Equipment required for servicing
Dolby Processing Chart
Service Bulletins
M-4400-1
M-4400-2
M-4400-3
M-4400-4
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