🏷️ Basic Information Identification Make: Samsung Model: LA26R71B, LA32R71B, LA40R71B Type: Television Category: Service Manual 📋 Manual Details Document Info Manual Type: Service Manual Language: English Format: PDF Availability: Downloadable 📄 Technical Specifications Display Display Technology: LCD Screen Sizes: 26-inch, 32-inch, 40-inch Resolution La26R71B: 1366 x 768 Resolution La32R71B: 1366 x 768 Resolution La40R71B: 1920 x 1080 (Full HD) Connectivity Hdmi Ports: Typically 2-3 Component Video Input: Yes Composite Video Input: Yes S Video Input: Yes (may vary by model variant) Usb Ports: No (typically for this generation) Audio Audio Output Power: 10W x 2 (typical) Power Power Consumption Standby: <1W (typical) Power Requirements: AC 100-240V, 50/60Hz 📄 Troubleshooting Common Issues Backlight Failure Symptoms: No picture, dim picture Power Supply Board Issues: No power, intermittent power Main Board Failure Symptoms: No sound, no signal, freezing