Samsung B2700 Service Manual page 66

C223
C235
L212
F201
2 5
G
G
OUT
4
IN
L214
1
OUT
3
RF_DAC2
VCC_TX_2.8V
C231
C230
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VCC_RX_2.8V
LNA_IN
C217
R208
C226
L218
VCCRX
NC6
NC5
R213
NC4
MIX1_A
R214
MIX1_B
NC3
RF_DAC1
RF_DAC2
VCCTX
41 GND1
NC2
42
NC1
43
10-29
Flow Chart of Troubleshooting
VDD_IO_LOW_1.8V
VCC_RX_2.8V
R209
C224
C225
RXQB
20
RXQA
19
RXIB
18
RXIA
17
U201
NC15
16
REFIN
15
EN
14
CLK
13
DATA
12
VGACTL
11
QRX_N
QRX_P
IRX_N
IRX_P
D_REF_CLK
RF_EN_3G
RF_CLK_3G
RF_DATA_3G
QTX_N
QTX_P
ITX_N
ITX_P
3G_TX