Hisense MT5659AUHT - System Diagrams and Schematics; Signals Block Diagram and Power Assignment

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5.6 Troubleshooting for Video input
No picture on the screen
Check Source work or not
Check connect
Check Cable/ Wires
Replace main board
Check Signal Source
Reconnect
Replace Cable/Wires
NO
YES
YES
NO
YES
NO
6. Signals Block Diagram & power assign & schematic diagram :