🏷️ Basic Information Identification Make: Roland Model: XV-88 Year: Unknown Generation: Unknown 📋 Manual Details Document Information Manual Type: Service Notes Language: English Page Count: Unknown Format: Digital/Printable Document 📄 Product Features Sound Engine Polyphony: 128 Voices Expandability: Yes Keyboard Keys: 88 Keybed Type: Weighted Hammer Action 📄 Service Information Troubleshooting Error Messages: Covered Maintenance User Data Save Load: Supported Factory Reset: Supported Firmware Flash Rom Version Up: Supported Diagnostics Test Mode: Supported Disassembly Keyboard Disassembly: Covered 📄 Technical Diagrams Structural Exploded View: Provided Electrical Block Diagram: Provided Circuit Diagram: Provided Keyboard Circuit Diagram: Provided 📄 Parts Information Listing Parts List: Comprehensive Exploded View Parts List: Provided Keyboard Parts List: Provided 📄 Control Information Location Location Of Controls: Provided Parts List Location Of Controls Parts List: Provided