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Flow Chart of Troubleshooting
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9-19
9-10. Key Back Light
Main Key LED does not work
Yes
No
Check the UCP200 related to
"KEY_ON(GPIOA29)"
U600 pin 3(KEY_ON) = "H"?
Yes
Change the U600
U600 pin 1(VDD_KEY_3.3V)
= 3.3V ?
END
Yes
No
Содержание SGH-D780
Страница 31: ...7 Block Diagrams 7 1 7 1 Functional Block Diagram ...
Страница 32: ...Block Diagrams 7 2 7 2 RF Solution Block Diagram ...
Страница 33: ...8 PCB Diagrams 8 1 Main top view ...
Страница 34: ...PCB Diagrams 8 2 Main bottom view ...