Marantz SR8001 Service Manual

The Marantz SR8001 is a high-performance 7.1 channel AV receiver featuring 110W per channel, Dolby Digital, DTS, Dolby Pro Logic IIx decoding, HDMI switching, multi-room capability, advanced audio calibration, and extensive connectivity options. This service manual provides technical specifications, installation guidelines, operational procedures, troubleshooting, and maintenance information for qualified service technicians.

Technical Specifications

Key technical parameters and performance characteristics of the Marantz SR8001 AV receiver.

Parameter	Specification
Power Output	110W x 7 channels (8Ω, 20Hz-20kHz, 0.08% THD)
Frequency Response	10Hz - 100kHz (+1/-3dB)
Signal-to-Noise Ratio	100dB (IHF-A)
Total Harmonic Distortion	0.08% (20Hz-20kHz)
Input Sensitivity	200mV
HDMI Inputs	3 inputs, 1 output (v1.2a)
Component Video	3 inputs, 1 output
Digital Audio Inputs	Coaxial: 4, Optical: 3
Analog Audio Inputs	7 channels
Power Consumption	650W maximum
Dimensions (WxHxD)	440 x 181 x 463mm
Weight	17.5kg

Front Panel Controls

Description and function of all front panel controls and indicators.

1. Power Button: Main power on/standby control
2. Input Selector: Rotating dial for source selection
3. Volume Knob: Master volume control with push mute function
4. Headphone Jack: 6.3mm stereo headphone output
5. Display: Multi-function fluorescent display
6. Setup Button: Access to system configuration menu
7. Test Tone Button: Speaker level calibration
8. Remote Sensor: IR receiver for remote control
9. Pure Direct Button: Bypass video circuits for audio purity
10. Multi-room Controls: Zone 2 operation controls

WARNING! Service personnel should disconnect power before accessing internal components.

Rear Panel Connections

Complete overview of all rear panel input/output connections and their specifications.

• HDMI Section: 3 HDMI inputs (v1.2a), 1 HDMI output with audio return
• Component Video: 3 component video inputs, 1 component monitor output
• Composite Video: 4 composite video inputs, 2 composite monitor outputs
• Digital Audio: 4 coaxial inputs, 3 optical inputs, 1 optical output
• Analog Audio: 7.1 channel pre-out, phono input, CD, DVD, etc.
• Speaker Terminals: 7 channels gold-plated binding posts
• Multi-room: Zone 2 speaker outputs and line outputs
• Control Ports: RS-232C, IR in/out, trigger outputs
• Antenna: AM/FM antenna terminals
• AC Power: IEC power connector with voltage selector

Installation Procedures

Step-by-step installation guidelines for proper setup and operation.

1. Unpack and inspect unit for shipping damage
2. Place on stable, well-ventilated surface with minimum 10cm clearance
3. Connect speakers using appropriate gauge wire (16AWG recommended)
4. Connect source components following input labeling
5. Connect HDMI devices for digital audio/video transmission
6. Connect antennas for AM/FM reception
7. Plug into AC power source (check voltage setting)
8. Power on and run initial setup wizard

CAUTION! Ensure proper ventilation to prevent overheating. Do not block ventilation slots.

System Configuration

Detailed setup menu structure and configuration options.

Speaker Setup: Size (Large/Small), Distance, Level, Crossover (40Hz-200Hz)

Audio Settings: Bass/Treble, Loudness, Dynamic Range, Dialog Enhancement

Video Settings: Resolution, Aspect Ratio, HDMI Control (RIHD)

Input Setup: Input rename, Digital input assignment, Source level

Multi-room Setup: Zone 2 source selection, volume limits

System Options: OSD language, Auto standby, Trigger settings

Operation Modes

Explanation of various audio processing and operation modes.

Mode	Description	Applications
Stereo	Direct 2-channel playback	Music listening
Direct	Bypass all processing	Audiophile music
Dolby Digital	5.1/6.1/7.1 channel decoding	DVD/Blu-ray movies
DTS	Digital Theater Systems decoding	Movie soundtracks
Dolby Pro Logic IIx	Matrix surround decoding	Stereo to 7.1 upmix
Multi-channel Stereo	Same audio all channels	Background music
Pure Direct	Video circuits disabled	Critical music listening

Remote Control Functions

Complete remote control button layout and programming instructions.

1. Power On/Off: System power control
2. Input Selectors: Direct access to sources
3. Volume Controls: Master volume up/down
4. Transport Controls: Play, pause, stop, etc.
5. Numeric Keypad: Direct channel/input selection
6. Sound Mode: Audio processing mode selection
7. Setup: Access configuration menus
8. Zone 2: Multi-room operation controls
9. Learning Function: Programmable for other devices
10. Macro Buttons: Custom command sequences

Tip: Remote can control up to 8 different devices with proper programming.

Firmware Updates

Procedures for checking and updating receiver firmware.

1. Check current firmware version in System Information menu
2. Download latest firmware from Marantz support website
3. Copy to USB flash drive (FAT32 format)
4. Insert USB drive into front panel USB port
5. Access Firmware Update in Setup menu
6. Follow on-screen instructions for update process
7. Do not power off during update (approx. 10-15 minutes)
8. Verify successful update in System Information

WARNING! Interrupting firmware update may render unit inoperable.

Diagnostic Procedures

Service mode access and diagnostic testing procedures.

• Service Mode Access: Press TONE + STATUS + ENTER simultaneously
• Test Tone Generator: Internal signal for level calibration
• Protection Circuit Check: DC offset, overcurrent protection
• Temperature Monitoring: Heat sink temperature display
• Input Signal Test: Verify all input signal paths
• HDMI EDID Read: Display connected device capabilities
• Factory Reset: Restore all settings to factory defaults

Circuit Diagrams

Reference to included schematic diagrams and block diagrams.

Complete set of schematics includes:

1. Main Power Supply Circuit
2. Audio Amplifier Section (7 channels)
3. Digital Processing Board
4. HDMI Switching Circuit
5. Video Processing Section
6. Control Microprocessor
7. Front Panel Display
8. Multi-room Amplifier
9. Protection Circuits
10. Power Management

Note: Full schematics available in separate PDF documents.

Troubleshooting Guide

Common issues and recommended solutions for service technicians.

Symptom	Possible Cause	Corrective Action
No power	Power supply, fuse, standby circuit	Check AC input, replace fuse, verify standby voltage
No sound	Protection circuit, amplifier failure	Check speaker shorts, measure amplifier outputs
HDMI no signal	HDMI board, EDID issues	Reset HDMI handshake, update firmware
Overheating	Ventilation, bias current	Clean ventilation, check bias settings
Remote not working	Batteries, IR sensor, remote	Replace batteries, check sensor voltage
Distorted audio	Amplifier stage, power supply	Check rail voltages, replace output devices
No video	Video processor, output circuits	Verify video signal path, check processor

Service Contacts: Marantz Technical Support: 1-800-288-2284

Website: www.marantz.com