Marantz SA11S1 Service Manual

The Marantz SA11S1 is a high-end SACD/CD player featuring advanced digital-to-analog conversion technology, premium audio components, and sophisticated circuitry design. This service manual provides comprehensive technical information for qualified service personnel, including schematics, alignment procedures, parts lists, and troubleshooting guidelines for proper maintenance and repair.

1. Technical Specifications 2. Block Diagrams 3. Circuit Descriptions 4. Disassembly Procedures 5. Alignment and Adjustment 6. Parts List 7. PCB Layouts 8. Wiring Diagrams 9. Troubleshooting Guide 10. Safety Precautions

Technical Specifications

Detailed technical specifications and performance characteristics of the Marantz SA11S1 SACD/CD player.

Parameter	Specification
Disc Compatibility	SACD, CD, CD-R/RW
Frequency Response	2Hz - 20kHz (SACD), 2Hz - 20kHz (CD)
Signal-to-Noise Ratio	115dB (SACD), 110dB (CD)
Dynamic Range	105dB (SACD), 100dB (CD)
Total Harmonic Distortion	0.0008% (1kHz)
Output Voltage	2.5V RMS
Digital Output	Coaxial, Optical
Power Consumption	25W
Dimensions	440 x 385 x 125mm (WxDxH)
Weight	13.5kg

Block Diagrams

System block diagrams showing signal flow and functional relationships between major components.

Main System Block Diagram: Shows overall signal path from disc pickup to audio outputs.
Digital Processing Block: Detailed diagram of DSP and DAC sections.
Power Supply Block: Power distribution and regulation circuits.
Control System Block: Microprocessor and user interface circuitry.
Analog Output Block: Analog stage and output circuitry.

WARNING! Service should only be performed by qualified technicians with proper training and equipment.

Circuit Descriptions

Detailed descriptions of major circuit sections and their operation.

Laser Pickup System: SACD/CD compatible optical pickup mechanism.
Digital Signal Processor: Advanced DSP for signal processing and error correction.
D/A Converter: High-precision digital-to-analog conversion circuitry.
Analog Output Stage: Discrete component analog amplification.
Power Supply Unit: Multiple regulated voltage supplies.
Control Circuit: Microprocessor-based system control.

CAUTION! Always disconnect power before servicing and use proper ESD protection.

Disassembly Procedures

Top Cover Removal: Remove 6 screws from rear and sides.
Front Panel Removal: Disconnect ribbon cables and remove mounting screws.
Main PCB Access: Remove shield and disconnect all cables.
Transport Mechanism: Remove mounting screws and disconnect flex cables.
Power Supply Board: Disconnect AC input and output connectors.
Analog Board: Remove mounting screws and interconnecting cables.

Alignment and Adjustment

Required test equipment and adjustment procedures for optimal performance.

Test Equipment: Digital oscilloscope, audio analyzer, test discs, multimeter.

RF Signal Level: Adjust for optimal eye pattern. Focus/Tracking: Optimize for minimum jitter. Output Level: Calibrate to 2.5V RMS. Digital Filter: Verify proper operation. Clock Timing: Adjust for minimum phase error.

Parts List

Complete list of replacement parts with manufacturer part numbers.

Laser Pickup Unit: KSS-213C or equivalent
Main Microprocessor: Marantz custom IC
DAC Chipset: Advanced multi-bit Delta-Sigma
Power Transistors: 2SC5200/2SA1943 pairs
Electrolytic Capacitors: Various values and voltages
Connectors and Cables: Specific part numbers

Tip: Always use genuine Marantz replacement parts for optimal performance and reliability.

PCB Layouts

Printed circuit board layouts for all major boards.

Main PCB: Component placement and trace routing.
Power Supply PCB: High-voltage section isolation.
Analog Output PCB: Critical audio path layout.
Front Panel PCB: Display and control circuits.
Transport Control PCB: Mechanism interface.

WARNING! High voltage present in power supply section - discharge capacitors before servicing.

Wiring Diagrams

Complete wiring diagrams and cable interconnection details.

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
No power	Power supply failure	Check fuse, power transistors, rectifiers
No disc reading	Laser pickup failure	Check laser diode, replace pickup assembly
No audio output	DAC or analog stage	Verify DAC operation, check output transistors
Display issues	Front panel circuit	Check display driver, ribbon cables
Transport problems	Mechanism failure	Check loading motor, position switches

Reset Procedure: Power cycle unit and check for error codes.

Service Contact: Authorized Marantz service centers only.