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10-
1
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Flow Chart of Troubleshooting
10-1-1. Power ON
'Power On' does not work
Voltage >=3.3V
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Charge the Battery
Pin#2 D301 is high?
Check R322, D301, D300
Check the PMIC output
voltage
(C401,C402,C408,C415,
C417,C430,C432)
Check U400
Check Pin#3 of OSC401
is 26MHz?
Check the clock generation circuit
(related to OSC401)
Check the initial operation
END
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Check the current consumption
Check the VBATT Voltage
Current consumption
>= 100mA
Yes
10. Flow Chart of Troubleshooting