User Guide

2. SGH-E620
Flow Chart of Troubleshooting
2-1
2-1. Power On
check the current
consumption more
than 100mA
Download again
'Power ON' does not work
No
Yes
Yes
END
Yes
Check the Initial Operation
Check U100
Yes
Yes
Check U100
pin A13 =
2.8V
No
U100 pin
C12 = 1.8V
No
Yes
Charge the battery
No
Check the Voltage
of the Battery more
than 3.5V
check keypad
No
Check the pin J12
of U100 is more
than 2.8V
Check
"Power On"
key?
No
check U100 and C103
Yes
1
2
1
1
2