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4.17.2 Checking RF Tx Level
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
DCS(1805-1880 MHz)
DCS(1805-1880 MHz)
GSM(869-894 MHz)
GSM(869-894 MHz)
PCS(1930-1990 MHz)
PCS(1930-1990 MHz)
GSM(925-960 MHz)
GSM(925-960 MHz)
C148C
1
4
8
33p3
3
p
C152
C152
4.7u
4.7u
C157
C157
1.5nH
1.5nH
6.8nH
6.8nH
L113
L113
1000p
1000p
C154
C154
33p3
3
p
C147C
1
4
7
C156
C156
15p
15p
33p3
3
p
C150C
1
5
0
3.3nH
3.3nH
L111
L111
C131
C131
3p
3p
2.2p
2.2p
C102
C102
15nH
15nH
L108
L108
15p
15p
C159
C159
C149C
1
4
9
33p3
3
p
NA
NA
L112
L112
ANT
ANT
G1
G1
G2
G2
RF
RF
NA
NA
L105
L105
SW101
SW101
KMS-507
KMS-507
18nH
18nH
L104
L104
18nH
18nH
L106
L106
3p
3p
C128
C128
3.9nH
3.9nH
L109
L109
NA
NA
L110
L110
C126
C126
1.8p
1.8p
VREG_RF_2.85V
VREG_RF_2.85V
WCDMA_2100
WCDMA_2100
21
21
WCDMA_850
WCDMA_850
C105
C105
56p
56p
15
15
GND1
GND1
1
GND2
GND2
8
GND3
GND3
10
10
GND4
GND4
23
23
24
24
GND5
GND5
11
11
GSM850_EGSM_TX
GSM850_EGSM_TX
GSM850_RX1
GSM850_RX1
12
12
GSM850_RX2
GSM850_RX2
13
13
PCN_PCS_TX
PCN_PCS_TX
9
16
16
PCN_RX1
PCN_RX1
17
17
PCN_RX2
PCN_RX2
18
18
PCS_RX1
PCS_RX1
PCS_RX2
PCS_RX2
19
19
7
VDDV
D
D
WCDMA_1900
WCDMA_1900
22
22
20
20
FL101
FL101
ANT
ANT
2
3
CTRL1C
T
R
L
1
4
CTRL2C
T
R
L
2
CTRL3C
T
R
L
3
5
CTRL4C
T
R
L
4
6
14
14
EGSM_RX1
EGSM_RX1
EGSM_RX2
EGSM_RX2
D5015
D5015
C160
C160
39p
39p
3
VBATT
VBATT
4
VRAMP
VRAMP
5
BAND_SELECT
BAND_SELECT
2
DCS_PCS_IN
DCS_PCS_IN
1
11
11
DCS_PCS_OUT
DCS_PCS_OUT
GND1
GND1
7
GND2
GND2
12
12
8
GSM_IN
GSM_IN
9
GSM_OUT
GSM_OUT
6
NC1
NC1
NC2
NC2
10
10
TX_EN
TX_EN
TQM7M5012
TQM7M5012
U102
U102
2.2p
2.2p
C107
C107
33p
33p
C129
C129
C123
C123
1.8p
1.8p
C115
C115
1.5p
1.5p
C110
C110
1.5p
1.5p
NA
NA
L101
L101
C153
C153
15p
15p
+VPWR
+VPWR
RX_PCS_M
RX_PCS_M
RX_PCS_P
RX_PCS_P
RX_GSM_850_M
RX_GSM_850_M
RX_GSM_850_P
RX_GSM_850_P
RX_GSM_900_M
RX_GSM_900_M
RX_GSM_900_P
RX_GSM_900_P
RX_DCS_P
RX_DCS_P
RX_DCS_M
RX_DCS_M
ANT_SEL0
ANT_SEL0
ANT_SEL1
ANT_SEL1
ANT_SEL2
ANT_SEL2
ANT_SEL3
ANT_SEL3
WCDMA_2100
WCDMA_2100
WCDMA_850
WCDMA_850
[Fig. 4.22] Schematic of the GSM Tx Block
[Fig. 4.23] Test Point of GSM Tx Block
TP1
TP2
TP3
TP2
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