The Marantz UD5005 is a universal Blu-ray disc player supporting Blu-ray, DVD, CD, SACD, and various audio formats. This service manual provides comprehensive technical information for qualified service technicians, including schematics, disassembly procedures, troubleshooting guides, and replacement parts information. Below are key sections covering specifications, block diagrams, service adjustments, troubleshooting, and parts lists.
The Marantz UD5005 universal Blu-ray player features advanced video processing, high-quality audio decoding, and network connectivity capabilities.
| Section | Description |
|---|---|
| Main Board | Central processing unit and primary circuitry |
| Power Supply | Switching power supply unit |
| Disc Transport | Blu-ray/DVD/CD loading mechanism |
| Audio Board | DAC and audio processing circuitry |
| Front Panel | Display and control interface |
| Rear Panel | Input/output connectors |
| Network Interface | Ethernet and wireless connectivity |
| HDMI Output | Digital audio/video interface |
| Analog Audio | RCA and XLR outputs |
| Remote Control | Infrared remote operation |
System block diagram showing signal flow and major components.
NOTE: Refer to schematic diagrams for detailed circuit information.
Step-by-step instructions for safe disassembly and reassembly.
WARNING! Disconnect power before disassembly. Handle boards with care to avoid ESD damage.
Detailed explanation of major circuit sections and their functions.
Power Supply: Switching regulator with multiple voltage outputs (+5V, +12V, +3.3V, -12V). Overcurrent and overvoltage protection circuits.
Main Processor: System-on-chip handling disc decoding, video processing, and system control. Includes embedded memory and peripheral interfaces.
Audio Section: High-quality DAC with analog output stage. Separate power regulation for analog circuits.
Video Section: HDMI transmitter with support for 1080p output. Video scaling and enhancement processing.
Factory adjustments and calibration procedures for qualified technicians.
CAUTION! Laser adjustments require specialized equipment and training.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No power | Power supply failure | Check fuse, measure output voltages, replace power supply board |
| No disc reading | Laser assembly, spindle motor | Clean lens, check laser power, replace optical block |
| No video output | HDMI circuit, main board | Check HDMI cable, test video outputs, replace main board |
| No audio output | Audio DAC, output circuits | Test different outputs, check audio board, replace DAC IC |
| Disc ejection issues | Loading mechanism | Check belt, gears, loading motor, replace mechanism |
Reset Procedure: Unplug unit for 30 seconds, then reconnect power.
Genuine Marantz replacement parts with manufacturer part numbers.
| Part Number | Description | Qty |
|---|---|---|
| UD5005-001 | Main Board Assembly | 1 |
| UD5005-002 | Power Supply Board | 1 |
| UD5005-003 | Optical Block Assembly | 1 |
| UD5005-004 | Front Panel Assembly | 1 |
| UD5005-005 | Disc Loading Mechanism | 1 |
| UD5005-006 | Remote Control | 1 |
| UD5005-007 | AC Power Cord | 1 |
| UD5005-008 | Rubber Feet Set | 4 |
Printed circuit board layouts for all major assemblies.
Note: All dimensions in millimeters. Component designators match schematic diagrams.
Interconnection diagrams showing cable routing and connector pinouts.
Tip: Use pinout diagrams for connector identification during reassembly.
Important safety information for service technicians.
WARNING! This equipment contains components that can retain dangerous voltages even when disconnected from AC power.