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Flow Chart of Troubleshooting
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9-15
9-9. Key Back Light
Main Key LED does not work
Yes
No
Check the U707 related to "KEYLED_ON"
signal
U707 pin 6 = H ?
Yes
U707 pin 3 = H ?
Replace U707
No
Yes
END
Содержание SGH-D900
Страница 28: ...8 PCB Diagrams 8 1 8 1 Main PCB Diagram Top ...
Страница 29: ...PCB Diagrams 8 2 Bottom ...