Nokia RM-849 Service Manual page 119

RM-849; (Nokia Lumia 610)
System Module
RF PA‐1(GSM & UMTS APT)
GSM_PA_BAND
GSM_PA_EN
TX_GSM_HB
TX_GSM_LB
PA_RAMP
TX_AGC_ADJ
APT_BUCK_ENABLE
VPH_PWR
R2919
1
Issue 1
R2901
0_0201_J
2 1
R2902
0_0201_J
2 1
R2903
27_0201_J
1 2
R2905 R2906
200_0201_J 200_0201_J
R2907
62_0201_J
1 2
R2908 R2909
100_0201_J 100_0201_J
VBATT
C2915
C2901
C2906 100nF_0402_16V 39PF_0402
NM_2.2uF_0402_6.3V
R2911
2.2K_0201_F
1 2
C2908
39PF_0402
R2912
1K_0201_J_1/20W C2909
4.7nF_0201_6.3V
R2922
1 2
C2912 NM_0_0201_J
10uF_0603_6.3V
U2902
6MHZ
C3 A1
VIN VCON
B3 C2
SW FB
B2
NC
A3 B1
PGND EN
A2 C1
SGND BPEN
FAN5903UCX
1 2
L2905
0.47uH_1.6A
NM_0_0402_J
2
COMPANY CONFIDENTIAL
Copyright © 2012 Nokia. All rights reserved.
U2901
SKY 77336-21
2
BS
3
TX_EN
1
DCS/PCS_IN DCS/PCS_OUT
8
GSM_IN GSM_OUT
4
VBATT
6
NC NC
5
VAPC
GND
17
GND_SLUG GND
18
GND_SLUG GND
19
GND_SLUG GND
20
GND_SLUG GND
21
GND_SLUG GND
22
GND_SLUG
23
GND_SLUG
24
GND_SLUG
25
GND_SLUG
26
GND_SLUG
27
GND_SLUG
28
GND_SLUG
R2914
1 2
0_0201_J
R2917
10K_0201_J
V_APT_SMPS
R2920
2 1
NM_0_0201_J
R2918
0_0201_J
C2902
2.7pF_0201
1 2
L2901
8.2nH_0201 L2902
6.8nH_0201
L2903
16
22pF_0201
9 1 2
C2904 C2905
13
NM_3.3pF_0201 NM_3.9pF_0201
15
14
12
11
10
7
TX_DCS1800_PCS1900
TX_GSM850_EGSM900
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