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Critical safety warnings, electrical hazards, and component handling advice.
Essential guidelines for safe servicing and LCD panel handling.
Lists Hisense TV models with their panel, main, and power boards.
Visual identification of main and power boards used in the TVs.
Step-by-step guide to access the hidden factory OSD menu via remote.
Details the adjustments and information available in the factory OSD menu.
Instructions for direct software upgrades via USB and troubleshooting failed attempts.
Guide on using FlashTool software for firmware updates.
Diagnosing and fixing problems with remote control and function keys.
Flowcharts for resolving TV power-on failures.
Troubleshooting for no sound, video inputs, and display problems.
Detailed circuit diagrams for the TV's power supply units.
Circuit diagrams covering core IC, memory, USB, and other interfaces.
Illustrates the overall signal flow and system architecture of the TV.
Details the main power supply circuits and voltage distribution.
Configuration and pin details for HDMI ports and MHL connectivity.
Wiring and pin assignments for USB 2.0 and USB 3.0 ports.
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General