Samsung SGH-C140 Service Manual page 29

26M_OUT
AFC
C306
VBAT
C313
C314
C359
DPCS_PAM_IN
R304
GSM_PAM_IN
R305
C300
R301
C307
VCCD_2.9V
C318
C321
C323
C324
C325 C326
SERLE
SERCLK
SERDAT
RTXIN
RTXIP
VRF_2.9V
3 4
C301
HOT GND2
OSC400
GND1 HOT
2 1
VLDO2
VLDO1
VBAT
VDD
U400
VCC_TXVCO
TXOP_HI
TXOP_LO
VLDO3
3-17
Flow Chart of Troubleshooting
RTXQN
RTXQP
C308
RX1900B
RX1900
RX1800B
DCS_LNA_IN_P
RX1800
DCS_LNA_IN_N
RX900B
GSM_LNA_IN_P
RX900
GSM_LNA_IN_N
RX850B
RX850
GND