🏷️ Basic Information Identification Make: Samsung Model: HT-DS400 / HT-DS420 Type: DVD Receiver 📋 Manual Details Content Manual Type: Service Manual Language: English Format: PDF Download Major Sections Covered: Alignment and Adjustments, Exploded Views and Parts List, Electrical Parts List, Block Diagrams, Wiring Diagram, Schematic Diagrams, IC Block Diagrams, Troubleshooting 🔧 Maintenance Cleaning Cleaning Instructions: Refer to manual for cleaning lens and exterior Calibration Adjustment Procedures: Alignment and adjustments section 📄 Technical Specs Audio Supported Audio Formats: Various (typical for DVD receivers, e.g., Dolby Digital, DTS, MP3, WMA) Video Supported Video Formats: Various (typical for DVD receivers, e.g., DVD-Video, CD-R/RW, VCD) Connectivity Output Terminals: Speaker Outputs, Optical Audio Out, Composite Video Out, Component Video Out, S-Video Out, Audio L/R Out Input Terminals: Optical Audio In, Coaxial Audio In, Audio L/R In, Composite Video In, S-Video In Power Power Output Per Channel: Varies (e.g., 100W per channel for surround sound configuration - specific RMS values would be in manual) Power Supply: AC 100-240V, 50/60Hz (typical universal power supply) Display Front Panel Display: VFD (Vacuum Fluorescent Display) or similar Disc Formats Disc Compatibility: DVD, DVD-R/RW, CD, CD-R/RW, VCD Surround Sound Surround Sound Decoding: Dolby Digital, DTS, Dolby Pro Logic II (likely) 📄 Troubleshooting Common Issues Common Problems Addressed: No power, no sound, disc read errors, video output issues, connection problems Diagnostic Tools Diagnostic Information: Block diagrams, schematic diagrams, troubleshooting flowcharts 📄 Parts Info Identification Parts List Availability: Exploded views and parts list, Electrical parts list