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9. Flow Chart of Troubleshooting
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9-1
9-1. Power On
No
Not OK
Not OK
Not OK
Not OK
Check VCC_SYN_2.8V
and VDD3_1.8V of U102
Solder PMIC, U102, C126 and C127
again
END
OK
Check the pin 1 of
OSC100 produces clock
signal
Solder OSC100 again
OK
Check the pin 7 of
U102 produces 13M
pulse signal
Solder OSC100, U102 and C132
again
OK
Is Power On working?
OK
Repeat sequence
Yes
Change battery
Check battery voltage
is higher than 3.3V
Yes
'POWER ON' does not work
Summary of Contents for SGH SGH-M110
Page 28: ...Block Diagrams 7 2 7 2 RF Solution Block Diagram ...
Page 29: ...8 PCB Diagrams 8 1 Main top view ...
Page 30: ...PCB Diagrams 8 2 Main bottom biew ...
Page 75: ......