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Flow Chart of Troubleshooting
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7-21
10. Key Back Light
U606 pin3 = H ?
Check the U200 related to "VDD_KEY"
END
No
Yes
Yes
Main Key LED does not work
KEY_LED
75
R614
C622
R607
LED600
SLSNNWH113TS
75
R613
LED605
R616
75
LED601
LED603
75
R618
LED607
C620
R619
75
4
U606
GND
2
6
GND
NC
5
1 STBY
VIN
3
VOUT
LED606
75
R612
VBAT
LED602
R611
75
75
R615
LED604
KEY_LED_ON