Table of Contents
Advertisement
10. Flow Chart of Troubleshooting
10-1.Baseband
10-1-1. Power ON
'Power On' does not work
Check the current consumption
Current consumption
>= 100mA
Check the Vbat Voltage
Voltage >=3.3V
Check the pin of UCP300
Pin#J12 >= 2.8V
Pin#A13 and
pin#A14 =2.8V
Yes
Check the clock signal at pin#21 of U103
Freq = 26MHz
Vpp >=400mV
Vpp ≒ 600mV
Check the clock signal at pin#5,#6 of U104
Freq = 13MHz
Yes
Check the initial operation
END
This Document can not be used without Samsung's authorization
Yes
No
Yes
No
Yes
No
Yes
No
No
Yes
No
SAMSUNG Proprietary-Contents may change without notice
Download again
Charge the Battery
Check UCP300 and C316
No
pin#G11 =
1.8V
Yes
Check the clock generation circuit
(related to OSC100)
Check U104
10-1
Check UCP300 and C317
Advertisement
Table of Contents
