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8. CIRCUIT DIAGRAM
1
1
2
2
A
A
GSM850_EGSM TX
DCS_PCS TX
GSM850 RX
EGSM900 RX
DCS1800 RX
AP503
AP501
AP505
AP502
AP504
DNI
NA
PCS1900 RX
R525
R526
C?
R506
DNI
DNI
B
B
R508
6.8p
L501
DNI
4.7nH
L502
C
C
D
D
BLUETOOTH_CSR
E
E
R517
1.5nH
L509
NA
L510
1.8p
F
F
FM_SND_R
FM_SND_L
CLK32K
26M_BT
FM_ANT
FL501
LFB212G45BA1A220
G
G
VRF2_1V5_internal
L515
22nH
C543
1.5p
H
H
1
1
2
2
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3
3
4
4
5
5
R501
VC1
VC2
VC1
PIN 14
PIN 13
1
C501
H
L
33p
L
H
R502
L
VC2
L
1
L
L
0.01u
C502
L
L
L
L
U502
LMSP43NA-782
17
SW501 RF-600
G2
ANT
RF
G1
C504
DNI
C508
C509
C510
C511
C512
C513
C514
C515
2.7p
2.7p
5p
5p
5.6p
5.6p
8.2p
8.2p
C516
DNI
L507
L505
L506
L508
18nH
15nH
3.9nH
3.3nH
VIO_2V62
FB501
VRF2_1V5_internal
ANT501
C525
NC1
0.01u
FEED
NC2
C526
C527
C528
C529
C530
C531
15p
0.1u
0.068u
22n
27p
15p
C532
C533
15p
15p
47n
C534
AU_REF
I2C_DATA
A3
C8
SPKR_R
I2C_CLK
A4
C7
SPKR_L
A5
USB_DN
C536
C535 220n
R520
560
K6
FILT_EXT
USB_DP
1000p
B3
J7
CLK_32K
UART_CTS
C537
C9
H6
LO_REF
UART_RTS
C538
0.01u
K3
H5
XTAL_OUT
UART_RX
1000p
J2
K7
XTAL_IN
UART_TX
K2
J8
U503
L511 33nH
C539
L512
470nH
FM_P
BLUECORE5-FM
PCM2_CLK
820p
C540
B1
D9
C542
C541
15p
FM_N
PCM2_SYNC
820p
A1
D10
15p
PCM2_IN
E10
R521
AUX_DAC
PCM2_OUT
B5
D8
RX_N
D1
0
RX_P
PCM_CLK
E1
H9
UB
B1
L513
RF_P
PCM_SYNC
3
L514
F1
J10
5
NC_DC
G2
DNI
RF_N
PCM_IN
2
4.7nH
G1
K8
6
NC
B2
PCM_OUT
1
7
H7
R522
0
VAUX_2V9
DNI
FB502
C544
BT_INT
R523
2.2
TP507
BT_VCXO_EN
C545
C546
C547
2.2u
2.2u
0.01u
BT_RESET
DNI
C548
VIO_2V62
3
3
4
4
5
5
6
6
7
7
8
8
R503
100K
R504
10K
VBAT
R510
PGND
GSM850_900_IN
6.2nH
15
7
R511
GND3
TX_EN
8
6
GND2
1
11
C505
GND1
VRAMP
14
5
U501
2.2p
TQM7M5005
BY_CAP2
VBATT
9
4
BY_CAP1
BS
13
3
R515
GSM850_900_OUT
MODE_SELECT
1.2nH
10
2
DCS_PCS_OUT
DCS_PCS_IN
12
1
C518
C519
C517
DNI
0.01u
0.01u
C520
C506
C521
C522
C507
C523
C524
1000p
22u
27p
100p
100p
100p
820p
UART_BT_RTS
UART_BT_CTS
TP508
UART_BT_TX
TP509
UART_BT_RX
TP501
I2S1_CLK
TP502
I2S1_WA0
TP503
I2S1_TX
TP504
I2S1_RX
6
6
7
7
8
8
- 115 -
9
9
10
10
11
11
RF_TEMP
R509
TXLB
1
PA_EN
R512
TX_RAMP
1.2K
PA_BAND
R513
1
PA_MODE
R516
R514
1
TXHB
4.7nH
L504
L503
DNI
NA
9
9
10
10
11
11
LGMC
12
12
C
C
D
D
E
E
F
F
G
G
H
H
12
12
LGE Internal Use Only
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Troubleshooting
