🏷️ Basic Information Identification Make: Sharp Model: LC-28HM2 Type: LCD AV Monitor 📋 Manual Details Document Info Manual Type: Service Manual Language: English Format: PDF 📄 Display Specs Panel Characteristics Screen Size Diagonal: 28 inches Resolution: HD (likely 1366x768 or similar for a 28-inch monitor of its era) Panel Type: LCD Aspect Ratio: 16:9 📄 Connectivity Input Ports Av Inputs: Multiple AV Inputs (details in manual) Hdmi Ports: Likely at least one HDMI port (details in manual) Output Ports Audio Outputs: Likely headphone jack or audio out (details in manual) 📄 Power Requirements Electrical Power Supply Voltage: AC 100-240V (typical for international use) Power Consumption: Varies (details in manual) 📄 Physical Characteristics Dimensions And Weight Approximate Dimensions: Varies (details in manual) Approximate Weight: Varies (details in manual) 📄 Internal Components Circuit Board Design Main Board Identifier: Specific part numbers provided in manual Power Supply Unit Psu Components: Capacitors, transformers, regulators (details in manual) Display Driver Board Tcon Board Function: Timing control for LCD panel 📄 Troubleshooting Common Issues No Power: Check power cord, outlet, fuse, PSU No Picture: Check input source, cables, panel connection Audio Problems: Check audio cables, speaker connections, audio settings 📄 Repair Procedures Disassembly Guide Case Removal: Step-by-step instructions in manual Component Replacement Backlight Replacement: Procedure for replacing CCFL or LED backlight (details in manual) Capacitor Replacement: Identification and replacement of faulty capacitors 📄 Schematics Electrical Diagrams Block Diagram: Overall system block diagram provided Schematic Diagrams: Detailed circuit diagrams for various sections