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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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9-25
9-13. GSM Receiver
RX ON
Cell Power : -60dBm
F100 Pin13
-65dBm
Yes
Resolder CN100,C101,L104
No
Yes
No
Check F100
pin9,pin11 = L
F100 1,2
-68dBm
Check ANT Switch
control circuit
No
Yes
Resolder F100
Yes
U101
pin 24 -70dBm
pin 25 -70dBm
Resolder C105, C108, L106
No
Yes
U101pin 11,12,16,17,
29,32,33,36 ≥2.8V
pin10≥1.8V
No
U101 pin 4,5,6,7
≥0.2Vp_p
No
Check & Resolder
C121,C124,C126
And PMU Part
Yes
Yes
Resolder U101
Check U200
END