🏷️ Basic Information Identification Make: Sony Model: STR-DE575, STR-K502, STR-K502P Year: Not specified (service manual) Generation: Not applicable (service manual) 📋 Manual Details Publication Info Manual Type: Service Manual Language: English Format: PDF Download Content Overview Topics Covered: General, Test Mode, Circuit Boards Location, Block Diagrams, Printed Wiring Boards, Schematic Diagrams, IC Block Diagrams, IC Pin Function Description, Exploded Views, Troubleshooting Target Audience Intended User: Service Technicians, Repair Professionals 🔧 Maintenance Troubleshooting Common Faults Addressed: Power issues, audio distortion, no sound, connectivity problems Repair Procedures Component Replacement Guidelines: Detailed instructions for replacing specific parts Test Points Diagnostic Test Modes: Internal test modes for diagnostics 📄 Technical Data Electrical Systems Power Supply Requirements: 120V AC, 60Hz (typical for North American models) Audio Processing Digital Signal Processing: Yes Surround Sound Formats Supported: DTS, Dolby Digital, Dolby Pro Logic (likely, based on era) Connectivity Audio Inputs: Analog RCA, Digital Optical, Digital Coaxial (likely) Video Inputs: Composite, S-Video (likely) Speaker Outputs: Binding posts for multiple channels (e.g., 5.1 or 7.1) Internal Components Main Processor Ic: Specific IC part numbers detailed in manual Power Amplifier Ic: Specific IC part numbers detailed in manual Display Driver Ic: Specific IC part numbers detailed in manual Performance Output Power Per Channel: Varies by model and configuration (detailed in manual) Frequency Response: Typically 20Hz-20kHz (detailed in manual) Signal To Noise Ratio: High SNR expected (detailed in manual)