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Level 3 Repair
8-6
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8-3. LOGIC
8-1. Power On
Check the Battery Voltage
is more than 3.7V
' Power On ' does not work
Change the Battery
END
No
Yes
Check the Clock at
OSC300 (C312, C313,
32.768kHz, ±20ppm)
No
Yes
Check the voltage of
VDD_CORE_1V28(C320, 1.28V),
VDD_MEM_1V8(C300, 1.8V),
VDD_DIG_3V0(C328, 3.0V),
VDD_VCXO_1V3(C325, 1.3V)
No
Yes
Check the initial operation
Yes
Yes
replace the OSC300
resolder the PM300
Check the Clock at
OSC200(C150, 26MHz,
±10ppm)
Yes
No
resolder the OSC200