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Level 3 Repair
8-3. LOGIC
8-3-1. Power On
Power switch on
Check the current co
nsumption
>= 100mA?
Check the battery
voltage
>= 3.45V?
Check the clock at
OSC300 = 32KHz ?
Check the power
VAMP1_3.0V(C326)=3.0V?
VANLG1_3.0V(C335)=3.0V?
VDD_1.2V(CC327)=1.2V?
VUSB_3.3V_NVM(C323)=3.3V?
VDDORF2_2.5V(C321)=2.5V?
VCORE_1.2V(C312)=1.2V?
VBBD_2.9V(C319)=2.9V?
VRF_VDD_DIG_1.8V(C332)=1.8V?
VMEM_1.8V(C313)=1.8V?
VSIM_3.0V(C336)=3.0V?
VDDAUX1_2.9V(C333)=2.9V?
VANLG2_3.0V(C334)=3.0V?
VCXOPWR_2.8V(320)=2.8V?
Check the clock
C1032 = 26Mhz ?
Check the initial operation
NG
Yes
Yes
Yes
Yes
Yes
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
NO
NO
Change the battery
NO
Resolder OSC300
NO
NO
Check the clock generation circuit
8-6
Download
Check the U301
TCX100
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