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5-23
Flow Chart of Troubleshooting and Circuit Diagrams
SGH-T508_REV2.0
Title
Size
Date:
Model & VER.
Sheet
5
of 6
RF Part1
A3
300
R510
27K
R520
33PF
C511
R515
2.2K
20K
R504
R521
2
GND
OUT
3
4
VCC
1
VT
390
10K
R505
RF-TCO9141
U504
D111
RB520S-30
18
R507
R502
10
C510
22NF
C505
1.8PF
L502
10nH
C503
1.2PF
C506
5
G
1
IN
3
OUT
4
OUT
1.8PF
B7821
U500
2
G
22NF
C512
C513
100PF
B7820
U501
2
G
G
5
1
IN
3
OUT
OUT
4
R511
22NF
C509
0
10NF
C518
C515
22NF
10K
R514
10NF
C517
100PF
C504
L501
27NH
300
R509
C514
C516
10NF
22NF
C519
100PF
SCLK
SDI
18
15
SDO
SENB
16
VDDA
20
6
VDDC
7
XIN
19
XOUT
ION
12
11
IOP
PDNB
14
5
RXIN
4
RXIP
3
RXQN
RXQP
2
17
CKN
CKP
9
1
GND
8
GND
13
GND
21
GND
GND
22
GND
23
GND
24
SI4201-BM
U503
10
28
25
VDDR
XIN
7
R519
1K
16
23
RFLON
RFLOP
24
SCLK
12
SDI
13
SDO
10
11
SENB
5
VDDD
VDDI
26
27
IFLOP
NC
8
NC
14
PDNB
9
20
RFLA
RFLB
19
RFLC
17
RFLD
GND
18
GND
21
GND
GND
22
GND
29
GND
30
3
IFLA
IFLB
2
IFLON
SI4133T-BM
U505
1
GND
GND
31
GND
32
GND
4
GND
6
15
2SC4617
2
3
1
C508
22NF
Q500
L504
1.0nH
C501
22NF
R516
1K,1%
TXIP
TXQN
8
7
TXQP
23
VDD1
VDD2
14
VDD3
32
VDD4
26
RFIGP
RFIPN
18
17
RFIPP
RFLON
13
RFLOP
12
RFOD
24
25
RFOG
6
TXIN
5
2
IOP
29
L1
L2
28
31
PDNB
RFIDN
20
19
RFIDP
RFIGN
22
21
GND
GND
30
33
GND
GND
34
GND
35
GND
36
10
IFLON
IFLOP
9
ION
1
U502
SI4200-BM
CKN
3
CKP
4
DIAG1
16
15
DIAG2
11
GND
27
100
R518
R517
5
1
51
R522
C507
33PF
1.2PF
C502
22NF
C500
R503 390
R513
91K
NC
R530
7.5NH
L500
R523
51
SYNEN1
SENB
3.9nH
L503
GSMRX
XIN
MC_PDN
_BANDSEL
MEL13M
DCSRX
3VRF
3VRF
IRXN
IRXP
QRXN
QRXP
SCLK_O
SDATA_O
SENB
XIN
DCSTX
GSMTX
SDATA
SCLK
BANDSEL
IFLON
IFLOP
PDNB_O
RFLON
RFLOP
ITXN
ITXP
QTXN
QTXP
XVCC
AFC
CLK13M
XIN
PDNB
RFLON
RFLOP
IFLON
SDATA_O
SCLK_O
PDNB_O
IFLOP
3VRF