🏷️ Basic Information Identification Make: Sony Model: HCD-DZ230/DZ231/HDZ235 Product Type: DVD Receiver 📋 Manual Details Information Manual Type: Service Manual Language: English Format: PDF Content Sections Covered: Servicing Notes, General, Disassembly, Test Mode, Mechanical Adjustment, Electrical Adjustment, Diagrams, Exploded Views, Electrical Parts List 🔧 Maintenance Troubleshooting Common Issues Addressed: Disc read errors, sound problems, power issues, mechanical failures Repair Parts List Availability: Yes 📄 Component Specs Receiver Features Disc Playback Formats: DVD, CD, Video CD Audio Formats: CD-R/RW, MP3, WMA Video Formats: DVD-R/RW, DVD+R/RW, JPEG Supported Audio Codecs: Dolby Digital, DTS Surround Sound Processing: Yes Connectivity Hdmi Output: Yes (model dependent, typically for audio/video pass-through or upscale) Usb Port: Yes (for media playback) Optical Audio Input: Yes Analog Audio Inputs: Yes (e.g., RCA stereo) Speaker Outputs: Multi-channel (e.g., 5.1 system capability) 📄 Technical Info Power Requirements Power Supply: AC 120-240V, 50/60Hz (region dependent) Performance Audio Output Power: Rated Output Power (example: 5 x 100W RMS for 5 channels, 1 x 150W RMS for subwoofer) Frequency Response: 20 Hz - 20 kHz (CD playback) Signal To Noise Ratio: > 90 dB (Line) Disc Mechanism Laser Type: Semiconductor laser