SAMSUNG Proprietary-Contents may change without notice
9. Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-1
9-1. Power On
Yes
Yes
Check the initial operation
Yes
No
Check the clock generation circuit
(related to
U102
)
Check for the clock at
CLK
= 26MHz
Yes
No
Check the +VDD_GSM_CORE circuit
C332
(+VDD_GSM_CORE_1.2
V) = 1.3V?
Yes
No
Check the related circuit
C161
(+VDD_IO_LOW) &
C160(
+VDD_IO_HIGH) = "H"?
Yes
No
Resolder
OSC300
Check the Clock at
C317
=32KHZ
Yes
No
Check the PMU related to VINT
C324
(VISA) = 2.6V?
Yes
No
END
Change the Battery
' Power On ' does not work
Check the Battery Voltage
is more than 3.4V