Troubleshooting For Video Input; Signals Block Diagram & Power Assign & Schematic Diagram - Hisense MT5659AUHT Service Manual

5.6 Troubleshooting for Video input

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