Samsung SGH-P730 User manual

GSM TELEPHONE
SGH-P730
GSM TELEPHONE CONTENTS
1. Specification
2. Flow Chart of Troubleshooting
3. Exploded Views and Parts List
4. Electrical Parts List
5. Block Diagrams
6. PCB Diagrams

1. SGH-P730 Specification
1-1
1. GSM General Specification
GSM900
Phase 1 EGSM 900 Phase 2 DCS 1800 Phase 1
Freq. Band [MHz]
Uplink/Downlink 890~915 935~960 880~915 925~960 1710~1785 1805~1880
ARFCN range 1~124 0~124 & 975~1023 512~885
Tx/Rx spacing 45MHz 45MHz 95MHz
Mod. Bit rate /
Bit Period 270.833kbps 3.692us 270.833kbps 3.692us 270.833kbps 3.692us
Time Slot Period /
Frame Period 576.9us 4.615ms 576.9us 4.615ms 576.9us 4.615ms
Modulation 0.3GMSK 0.3GMSK 0.3GMSK
MS Power 33dBm~5dBm 33dBm~5dBm 30dBm~0dBm
Power Class 5pcl ~ 19pcl 5pcl ~ 19pcl 0pcl ~ 15pcl
Sensitivity -102dBm -102dBm -100dBm
TDMA Mux 8 8 8
Cell Radius 35Km 35Km 35Km

SGH-P730 Specification
1-2
2. GSM Tx Power Class
Tx Power
control level DCS1800
030±3dBm
128±3dBm
226±3dBm
324±3dBm
422±3dBm
520±3dBm
618±3dBm
716±3dBm
814±3dBm
912±4dBm
10 10±4dBm
11 8±4dBm
12 6±4dBm
13 4±4dBm
14 2±5dBm
15 0±5dBm
Tx Power
control level GSM900
533±3dBm
631±3dBm
729±3dBm
827±3dBm
925±3dBm
10 23±3dBm
11 21±3dBm
12 19±3dBm
13 17±3dBm
14 15±3dBm
15 13±3dBm
16 11±3dBm
17 9±3dBm
18 7±3dBm
19 5±3dBm

2. SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-1
1. Power On
check the current
consumption more
than 100mA Download again
'Power ON' does not work
No
Yes
Yes
END
Yes
Check the Initial Operation
Check U101 and C116
Yes
Yes
Check U101
pin 39 =
2.8V
No U101 pin9
=1.8V No
Yes
Charge the battery
No
Check the Voltage
of the Battery more
than 3.5V
check keypad
No
Check the pin11 of
U101 is more than
2.8V
Check
"Power On"
key?
No
check U101 and C117
Yes

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-2
(2.5/1.8)
I/F CON
JT A G CON
P SC 2106A
(2.8/3.3)
IRDA
(2.8/3.3)
RS_MMC
W24PI
N
R 150
MMC_2.5
1K
C 115
VCCB
R107
1IN OUT 5
4
REF_BYP
C 137
U 107
EN
3
2GND
C 120
D101
0
R 164
R 123
R160
V_LED
C 128
C 145
9
VO UT 2
R 151
GND
1415
GND
GND
16
5N/C
N/C8
7
N/C
1VIN VOUT1 10
CBYP
4
EN1
2
3EN2
GND 6
11
GND
GND
12 13
GND
VBAT
U 105
C 134
ZD105
C 105
C 100
6
6
77
8
8
99
25 NC
NC
26
VBAT
2
20 20
21
21
22 22
23
23
24
24
33
4
4
55
13
13
14 14
15
15
16 16
17
17
18 18
19
19
2
C N 100
1
1
10
10
11
11
12 12
C 109
CAM_2.5
R 147
C 110
R 118
R 122
R 134
NC
VBAT
USB_5
R110 1K
C 129
VCCD
W M _2.8D
C 122
8
C 124
ZD 104
1
2
34
5
6
7
C 631
GND
7
1LEDA
LEDC
2
RXD
4
5SD
3TXD
VCC
6
LE D 101
C 106
R 125
R161
R 133
16
GND
5N/C
N/C8
7
N/C
VIN
11 0
VO UT 1
VO UT 2 9 EN1
2
3EN2
GND
6
GND
1112
GND
GND
1314
GND
GND
15
1
3
2
U 102
CBYP
4
R129
Q 102
R102
R157
VLDO _4
33
VLDO _5
VLDO _6
42
VLDO_7 40
30
VREF
12
VRTC
48
VSI
M
4
VI
B_DRV
VL4S_A
36
35
VL4S_B
VL5S_A
32
31
VL5S_B
9
VLDO _1
11
VLDO _2
VLDO _3
39
37
54 UP_RST
3
VACC
2
VBAT
VDD12
10
38
VDD34
34
VDD5
VDD67
41
VEXT
1
17
15
SDI
16
SDO
50
SI
M_CLK
SI
M_I
O
51
SI
M_RST
49
53 UP_CLK
52 UP_IO
20
PSW 1_B UF
21
PW R_KEEP
46
PW R_SW 1N
47
PW R _SW 2
19
RESETN
RI
NG_DRV
5
55
RING _PW M
RTC_ALMN
13
SCLK
66GND
GNDD
60
6
GNDD1
28
GNDQ
INTRQ
14
LED1_DRV
7
LED2_DRV
8
68GND
GND
58
59 GND
61GND
GND
62
63GND
GND
64
GND
65
EN_3
22
EN _4[0]
23
EN _4[1]
24
25
EN_5
EN _5A
26
27
EN _5B
GND
57
GND
67
U 101
44
ADC_AUX1
ADC_AUX2
45
ADC_TRIG
56
43
BTEM P
CREF
29
CSN
18
34
5
6
7
8
ZD 102
1
2
R 105
R 126
VBA T
R 104
C 119
NC
10
11 NC
12 NC
NC
13
14 NC
VCCD
3
3
44
5
5
66
7
7
NC
8
9NC
VBAT
C N 102
1
1
22
R 106 1K
CN103
1
1
22
3
3
NC
4
5NC
100K
U 607
GND
GND
16
N/C
5
8N/C
N/C7
1VIN VOUT1 10
9VO UT 2
CBYP
2EN1
EN23
6
GND
11
GND
GND
12 13
GND
GND
1415
VBAT
U 106
4
C113
VCCD
CAM_1.8
C 140
U 103
BYP 4
3EN
GND
2
IN
1OUT 5
C 114
C 104
C 101
VCCD
1K
R112
R128
R117
C 138
NC
VBAT
C 123
VCCA
VCC B
W M _3.3A
R 130
R 140
VBAT
C 118
USB_5
VC 01_2.5
C 111
R 103
VBAT
D102
0R 121
1KR 162
VIN5 VO UT
VR F
R 163 1K
U 602
5
BYP 4 CTL
3
2
GND
1
C 142
C147
R 120
C 130
C 144
C 116
Q 101
13
2
1
2
34
5
6
7
8
R 142
ZD 101
0
NC
R 141
C 121
R 115 1K
C 132
VCCDVCCD
R 132
C 107
4
4
5
566
778
8
9
9
C N 101
1
1
10 10
11 11 12
12
22
33
C 108
C 103
VC C _1.8A
MMC_2.5
C 127
C 117
VCCD
R 119
R158
1K
C 143
C 131
C 141
1KR113
R 153
C 102
R 144
R 155 1K
1KR114
VRTC
R159
VC 01_2.5
VC 01_2.5
VCCD
1KR116
R 131
R127
5
6
7
8
USB_3.3
VCC D
ZD 103
1
2
34
BA TT1
2
NEG
1
PO S
C 126
R 156
44
5
5
66
G
78
GG
910
G
C N104
11
22
33
C112
C 125
MMC_INS
RST
US B _D _M INUS
US B _D _P LU S
DEBUG_TXD
DEBUG_DC D
DEBUG_RTS
DEBUG_CTS
M O T_3.3
DLC_DETECT
SDS_RXD
SDS_TXD
DEBUG_RXD
VC 01_TM SCP_TMS
VC 01_TD I
VC 01_TD O
RST
CP_TDI
CP_TDO
CP_TCK
W M 97_O N
DEBUG_RI
JIG_O N
EN _VC 01_2.5
MM C_CS
MMC_DI
MMC_SCLK
MMC_DO
CAM_ON
SIM DATA
VC 01_TC K
PW R_ON
VC _M _C O N
EN_MM C USB_DETEC T
SIM CLK
SIMRST
IRDA_RX
IRDA_EN
IRDA_TX
DEBUG_DSR
BP_VF
DEBUG_DTR
XOEN A
BACKLIGHT1
PW R_KEEP RTCALAR M
UP_SDI
VRE F
UP_SCLK
UP_CS
KEY_ROW (0)
KEY_COL(2)
JIG_O N

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-3
2. Initial
END
Yes
Check the signal at
the pin 21 of U101 is
"High" when the phone
is boot on
Initial Failure
Check pin4 of OSC402
Voltage is 2.8V ?
Check U401
Check pull_up R603,pin39 of U101,
OSC600, C613
No
Yes
Yes
No
No
Check pin5 of U103
Voltage is 2.5V?
Check or Change U300
Yes
Yes
No
Check pin3 of OSC600,
Frequency is 13MHz? Check or change OSC600
Check OSC300 is
working? No
Check the soldered status of U103,
U401

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-4
USB
MEMORY
TRIDENT
BOARD_HOLE
JTA G
G6
JI
G_ON
VCCD
R 614
C 418
R43
R 400
C 403
C 404
C 412
)
O S C 402
2
34
1
R 409
G7
VSSX7 G8
H2
VSSX8 H5
VSSX9
B7 WRN
B1 XTAL1
XTAL2
C1
R 418
G3
H6
VSS1
VSS10 H7
VSS11 H8
VSS2 B4
E1
VSST
B8
VSSX1
VSSX2 C7
F7
VSSX3
VSSX4 G4
G6
VSSX5
VSSX6
F8 PW UPN
RDN
A8
RESET
D8
D7 SOFN
E7 SUSPN
USBR
G5
VDD0
H4
B2 VDD1
VDDA
C2
D2 VDDT
VSS0
D5
D6 B6
A7
D7
DMINUS
D1
E2 DPLUS
A1 DPPU
H3 DSA
IOCSN
C8
IRQN
E8
1
NC1
NC2 2
A0
F2
F1 A1
A2
G2
A3
H1
A4
G1
D0 A3
B3
D1
D2 A4
A5
D3
D4 B5
A6
U 404
TP3
C 421
VCC D
C 401
TDI
TX
VBAT
47K
R 403
F_WE
C 402
ANT
VC C _1.8A VCCD
C 400
C 423
C 422
C 411
R 408
L1
G7 WAIT
F5 WE#
WP#
E4
R 404
VPP/VPEN
VSS
B4
C4
VSS
VSS L2
L5
VSS
VSS L6
L7
VSS L8
VSS
VSS
S-VCC
VCC1
B5
L4 VCC2
VCC2
B6
K6 VCC2
J8 VCCQ
VCCQ
K7
VCCQ
L3
D4
H1
F3 R-UB#
D5 R-WE#
K2
RFU K3
RFU
F4 RST#
J1
S-CS1 C5
S-CS2 K4
NC 1
NC 2
OE#1
J2
H8 OE#2
D6
P-CS#
K8 P-MODE
P-VCC
K5
C2 R-LB #
R-OE# DU
DU A2
A7
DU A8
DU
DU M1
M2
DU
DU M7
M8
DU
D2
D3 H4
J5
D4
D5 G5
D6 J6
H7
D7 G2
D8
D9 J3
A1
D0
D1 H3
G4
D10
D11 J4
D12 H5
G6
D13 H6
D14
D15 J7
G3
A6
A7
E2
F6 A8
A9
D7
ADV#
E5
K1 CE#1
CE2
G8
CLK
C6
H2
A18
A19
B3
E1 A2
E6 A20
B7 A21
D1 A3
B1 A4
A5
C1
F2
A10
A11
B8
C8 A12
A13
D8
A14
F7
E8 A15
F8 A16
A17
D2
B2
C7
128M B
1G B E3
256M B C3
D3
512M B
G1 A0
A1
F1
E7
R 415
U 400
VCCB
RX
C 415
C 409
VRTC
R 401
R 407
C 419
R419
R 405
C 414
C 405
2SCK
SCN
3
SDI
1
11
VDD
G7
PPI
0
56
PPI
1
PPI
2
78
PPI
3
9
PPI4
PPI510
PPI612
4RSTB
16
CS_I
N
15
CS_OUT0
CS_OUT1
14
CS_OUT2
1317
GND
21
NC
22
NC
U 406
VCCD
C 410
VCCB
VCC D
C 417
XTIC_MODE
XVREFF10
TP1
C 427
T15
M9 XPA7/IRQ1
XPA8/IRQ2
T5
P2 XPA9/IRQ3
R5XPWM1
E8
XRTCALARM _N
N10XSM0_CLK
U12XSM0_DAT
A
D12
H14
XPA33_T_REQA
N17
M17XPA34_T_REQB
L13
XPA35_A22
XPA36_A23_CS5
NN15
N14 XPA3/CS4N
P16 XPA4/OEN
P15 XPA5/WAITN
XPA6/BE1N
M3XPA25_OM0
G2XPA26_OM1
XPA27_SM1_CLK
G4
G5XPA28_I
OM0
F1XPA29_I
OM1
XPA2/CS3N
M11
XPA30_I
M0
F3
XPA31_I
M1
E1
XPA32_CS0
N
P13
L2XPA19/
CP_MOSI
XPA1/CS2N
M14
XPA20/
CP_MI
SO
L1
XPA21/
CP_SCK
K4
J6XPA22/
SSN
XPA23/
PWM2
H6
H5XPA24/
PWM3
N2
K5XPA11/
I
RDARX
XPA12/
I
RDAT
X
N1
G6XPA13_TX1
XPA14_RX1
G3
H4XPA15/
TX0
XPA16/
RX0
L3
XPA17_DRQ0
E4
XPA18_T_ACK
D7
D13XCP_TDO
G8XCP_TMS
XCP_TRSTN
F9
XCP_W EN
C13
XFRSTB
F4
XOSC32OUT C6
M15 XPA0/CS1N
XPA10/IRQ4
M4XCP_KB2/
SI
N
2
XCP_KB3/
SI
N
3
T1
XCP_KB4/
SI
N
4
R2
T3XCP_KB5/
SOUT0
XCP_KB6/
SOUT1
U3
P3XCP_KB7/
SOUT2
T4XCP_KB8/
SOUT3
N3XCP_KB9/
SOUT4
XCP_TCK
D6 XCP_D5
E7 XCP_D6
XCP_D7
D5
XCP_D8
C4
B4 XCP_D9
XCP_TDI
C7
L4XCP_KB0/
SI
N
0
L5XCP_KB1/
SI
N
1
C1
C2 XCP_D12
XCP_D13
D2
XCP_D14
D3
E3 XCP_D15
XCP_D2
F8
F7 XCP_D3
XCP_D4
C5
A15 XCP_A7
B17 XC P_A8
XCP_A9
C17
XCP_CSRAM EN
A13
A12 XCP_CSROMEN
A6 XCP_D0
XCP_D1
B5
B3 XCP_D10
XCP_D11
L14 XCP_A19
E14 XCP_A2
L15 XCP_A20
XCP_A21
L16
XCP_A3
D15
XCP_A4
B15
C14 XC P_A5
XCP_A6
A16
F14 XCP_A11
G14 XCP_A12
XCP_A13
G13
G17 XCP_A14
XCP_A15
J12
XCP_A16
K12
K13 XC P_A17
XCP_A18
K14
A11
XAG1
E11
XAG2
XAG3 D11
B7
XBSW N
M12
XCPTSTSTOP_CK O
XCP_A0_BEON
B13
XCP_A1
F11
XCP_A10
D16
H11
VSS
VSSJ7
VSSK6
VSSAE10
VSS_DPLLE15
A7
X1RTC
X2RTC D10
XAG0 B11
L8
VSSJ11
L9
VSS
VSSA3
VSSF6
G9
VSS
VSSG10
H7
VSS
E17
G16
VDD_DPLL
D8
VRTC
A2
VSS
K7
VSS
L6
VSS
VSSL10
M7
VSS
VSS
B14
VDDE
M1
VDDE
VDDEU2
P8
VDDE
VDDEU15
U16
VDDE
VDDEN16
E16
VDDE
VDDE
R4
T13
VDD
VDDR16
R17
VDD
VDDA5
C16
VDD
C11
VDDA
VDDEB1
H12
TDI
TDO F12
TM S G12
F15
TRST
E2
VDD
VDDL17
VDDG1
R1
VDD
VDD
R12
K11
IOBIT#1
L12
IOBIT#2
1
NC
NC2
C12
RSTB
U5
RWN
TCK H13
P6
DB#3
DB#4 U7
DB#5 T7
R7
DB#6
DB#7 M6
DB#8 P7
N7
DB#9
INT#0 N4
IO7
U6
N8
D B #10
D B #11 M8
U11
D B #12
D B #13 T11
D B #14 R11
P10
D B #15
DB#2 R6
P11
AB#4
AB#5 P12
R14
AB#6
T14
AB#7
AB#8 T17
CKIF17
CKO G15
P5
DB#0
DB#1
U 401
AB#0 U13
M10
AB#1
AB#2 R13
AB#3 N11
R430
R 411
47K
VCC D
TP4
VCCD
C 408
VC C _1.8A
D4
D6
GND
2VBUS 5
R 406
U405
D
1
3D
TCK
C 424
GND
VC C _1.8A
C 406
VCCD
VC C _1.8A
TRST
VC C _1.8A
R 402
VC C _1.8AVCCD
VBA T
C 425
C 413
TP2
C 416
R 417
1
B
3
GND
5
VCC 4
Y
TMS
U 403
2A
U402
GND
3
2VO VS 1
VCCD
USB_3.3
C 407
C 420
R 410
TDO
TP5
C428
G5 G2
C 426
G4G1 G3
LED_BLUE1
LED_BLUE2
VC 01_R ESET
HOLE_SW 3
MAIN_BL_ON
VBAT
KEY_COL(3)
KEY_COL(4)
KEY_COL(0:4)
BP_VF
RCV_SW _EN
USB_NRW UP
JTA G _A N T
IRDA_TX
EAR_AUDIO_SW
PW R_KEEP
HOLE_SW 4
TR_RST
DLC_DETECT
EN _VC 01_2.5
A(22)
RST
TR_RST
HOLE_SW 2
US B _D _M INUS
US B _D _P LU S
VC 01_W R
DSP_DB(15:0)
KEY_ROW (4)
KEY_ROW (0)
KEY_ROW (1)
KEY_ROW (2)
KEY_ROW (3)
KEY_ROW (0:4)
KEY_COL(0)
KEY_COL(1)
KEY_COL(2)
D(12)
D(13)
D(14)
D(15)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
D(8)
D(9)
FLASH_RESET
A(1:22)
CP_CSROMEN
C P_C S R O M 2E N
A(0)
CP_O EN
CP_CSRAM E N
UPPER_BYTE
D(0:15)
CP_W EN
A(23)
A(1)
A(2)
A(11)
A(12)
A(13)
A(14)
A(15)
A(16)
A(17)
A(18)
A(19)
A(20)
A(3)
A(21)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
D(0)
D(1)
D(10)
D(11)
CP_W EN
CS_VC01
A(0)
A(1)
A(2)
A(3)
A(4)
D(0)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
CS_USB
USB_IRQ N
USB_NRW U P
CP_O EN
USB_RESET
CP_W EN
A(0)
A(22)
ADC_JACK
XLATCH_C E
IRDA_EN
USB_RESET
UP_SDI
RST
UP_SCLK
XLATCH_C E
CS_USB
CS_VC01
A(4)
A(3)
A(21)
A(20)
A(2)
A(19)
A(18)
A(17)
A(16)
A(15)
A(14)
A(13)
A(12)
A(11)
A(10)
A(1)
D(3)
D(2)
D(15)
D(14)
D(13)
D(12)
D(11)
D(10)
D(1)
D(0)
CP_CSROM E N
CP_CSRAM EN
A(9)
A(8)
A(7)
A(6)
A(5)
VRE F
HOLE_SW 1
VC 01_INT
CP_INT
UPPER_BYTE
DEBUG_DCD
CP_O EN
C P_C S R O M 2E N
CP_W EN
D(9)
D(8)
D(7)
D(6)
D(5)
D(4)
UP_SCLK
UP_CS
VC 01_R ESET
USB_IRQN
DEBUG_RI
SIMRST
DEBUG_CTS
DEBUG_DTR
DEBUG_RTS
USB_DETECT
DEBUG_DS R
A(23)
RTCALARM
SIMCLK
SIM DATA
TR_R ST
CP_TDI
CP_TCK
CP_TDO
CP_TM S
TR_RST
FLASH_RESET
CLK32K
IRDA_R X
SDS_TXD
SDS_RXD
DEBUG_TXD
DEBUG_RXD
JACK_IN
EAR_SW ITC H
UP_SDI
DSP_DB(3)
DSP_DB(4)
DSP_DB(5)
DSP_DB(6)
DSP_DB(7)
DSP_DB(8)
DSP_DB(9)
DSP_INT
DSP_IO
DSP_RW N
DSP_TCK
DSP_TDI
DSP_TDO
DSP_TM S
TR_RST
DSP_AB(3)
DSP_AB(4)
DSP_AB(5)
DSP_AB(6)
DSP_AB(7)
DSP_AB(8)
C LK 13M _TR
DSP_DB(0)
DSP_DB(1)
DSP_DB(10)
DSP_DB(11)
DSP_DB(12)
DSP_DB(13)
DSP_DB(14)
DSP_DB(15)
DSP_DB(2)
D(0:15)
A(0:20) DSP_AB(8:0)
RST
CP_TDO
CP_TDI
CP_TM S
CP_TCK
CP_W EN
JIG_O N
SDS_RXD
SDS_TXD
DSP_AB(0)
DSP_AB(1)
DSP_AB(2)

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-5
3. Sim Part
*TestwithSim
Check the pin 1 of
CN104. voltage 3V?
Phone can't access SIM card
Check the SIM
connector's (CN104)
connection to SIM
card
Check the circuit related to U101
Resolder or change CN104
END
No
Yes
Yes
Yes
No
Check the circuit
around CN104 input
circuitry Check the related circuit of CN104
Yes
No
Check the circuit
around U401 output
and voltage supply
circuitty
Check the related circuit of U401 and
U101
Yes
No

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-6
KEY_CO N
LCD_CON CAM _CON
JOG_CON
VDD_CO RE
R 315
R 397
100K
R31
2
R 383
R 379
R 340
L400
ZD308
R 323
4
8
OUT
OUT7
OUT6
OUT5
F306
9
GND
1IN
2IN
IN
3
IN
C 310
334
4
556 6
778
8
99
13
13 14
14
15 15 16 16
17
17 18
18
19 19
22
20 20
C N 303
1
1
10
10
11 11 12
12
VC 01_2.5
R 332
R 320
R 325
C 300
0R 617
C316
B
1
GND
3
VCC
5
Y
4
VC 01_2.5
U603
A2
OUT
5
OUT
VC 01_2.5
9
GND
1IN
2IN
IN
3
IN
4
8
OUT
OUT7
6
F305
R 384
C313
IN1
16 IN2
5
VC C
Y4
U302
GND
2
3IN0
AB4
XO U T _32K
Y8
D3 VID_IN5
VID_IN6
D2
E3 VID_IN7
VID_IN8
E2
D1 VID_IN9
Y7 VO U T_PC
VSYNC
B4
WE_N
M19
AA5 XIN
XIN _32K
AB8 XOU T
U3 VDD_PC 5
AA9 VDD_PC 6
VDD_PC 7
AA1 7
L4 VDD_PC 8
VDD_PC 9
W5
VDD_SMPS
Y5
B3 VID_IN0
A3 VID_IN1
VID_IN2
C3
C2 VID_IN3
VID_IN4
C1
P22
T1
VDD_CO RE4 Y9
VDD_CO RE5 J20
VDD_CO RE6
VDD_CO RE7 K2
AB17
VDD_CO RE8
AB6 VDD_LINREG
VDD_PC 1
A16
B6 VDD_PC 2
VDD_PC 3
H22
N19 VDD_PC 4 AB 7
VDDIO26
D12
VDDIO3
VDDIO4 D14
VDDIO5 D16
E4
VDDIO6
VDDIO7 E19
VDDIO8 G4
VDDIO9 G19
VDD_CO RE1 A6
B16
VDD_CO RE2
VDD_CO RE3
VDDIO16 AA 7
VDDIO17 D5
J4
VDDIO18
VDDIO19 J19
D9
VDDIO2
V4
VDDIO20 W7
VDDIO21 W9
VDDIO22
VDDIO23 W12
W14
VDDIO24
VDDIO25 W16
TM S
D13 TXD1
TXD2
B12
A4 VCLK
VDDIO1 D7
P4
VDDIO10
VDDIO11 P19
T4
VDDIO12
VDDIO13 T19
W18
VDDIO14
VDDIO15 AA 3
SLV_SC L K
B7
SLV_SD AO
C7
C6 SLV_SD I
SM PS_FB
AB5
SM PS_GATE
AA6
Y6 SM PS_ISENSE
V3 SM PS_RUN
M1
TCK
N2
TDI
TDO N1
N3
Y2
RDY
J21
AB3 RESET_N
C14 RXD1
RXD2
C12
SCL
B5
A5 SDA
SDCKE
K22
L19 SDCLK
K21 SDCS_N
A7 SLV_CE _N
T3
T2 MDO4
MDO5
R1
U2 MDO6
MDO7
U1
M SEO _N0
N4
M SEO _N1
P3
1NC1
2NC2
M21 OE_N
Y4 POR ESET_N
PWR_CORE
E1 LCD_R1
LCD_R2
F2
G3 LCD_R3
LCD_R4
G2
F1 LCD_R5
P2 MCKO
C5 MCLK
P1 MDO0
MDO1
R3
R2 MDO2
MDO3
M3
H3 LCD_G 0
LCD_G 1
H2
G1 LCD_G 2
LCD_G 3
J3
J2 LCD_G 4
LCD_G 5
H1
LCD_LCLK
L1
M2 LCD_O E
M4 LCD_PCLK
LCD_R0
F3
HD9
HRDY
A15
C16 HRD_N
HSYNC
C4
HWR_N
C15
K4 LCD_B0
LCD_B1
K3
J1 LCD_B2
LCD_B3
K1
LCD_B4
L3
L2 LCD_B5
LCD_FCLK
HD13
B18
A18 HD14
HD15
C17
C22 HD2
HD3
D20
C21 HD4
HD5
C20
C19 HD6
HD7
B20
A19 HD8
A20
B11
GPIO8 C11
A12
GPIO9
B17 HA0
HA1
A17
B15 HCE_N
E20 HD0
HD1
D21
B19 HD10
HD11
D18
HD12
C18
GPIO26 D10
A10
GPIO27
GPIO28 B10
C10
GPIO29
C8
GPIO3
GPIO30 D22
E21
GPIO31
GPIO4 A8
B9
GPIO5
GPIO6 A1 1
GPIO7
GPIO16 F20
F21
GPIO17
GPIO18 F22
G20
GPIO19
GPIO2 B8
GPIO20 G21
G22
GPIO21
GPIO22 H20
H21
GPIO23
GPIO24 C9
A9
GPIO25
B21
GND7
GND8 B22
D8
GND9
GPIO0 Y3
Y1
GPIO1
GPIO10 A1 3
B13
GPIO11
GPIO12 C13
A14
GPIO13
GPIO14 B14
E22
GPIO15
W8
W11
GND34
GND35 W15
AB 1
GND36
GND37 AB2
AB21
GND38
GND39 AB22
A22
GND4
W6
GND40
GND5 B1
B2
GND6
AA 1
GND24 AA2
GND25 AA4
GND26
GND27 AA8
AA21
GND28
GND29 AA22
GND3 A2 1
D4
GND30
GND31 D6
W4
GND32
GND33
GND14 F4
F19
GND15
GND16 H4
GND17 H19
R4
GND18
GND19 R19
A2
GND2
U4
GND20
GND21 U19
W17
GND22
GND23 W19
D8
D9 T22
M20
DQM 0
DQM 1 L22
L21
DQM 2
DQM 3 L20
GND1 A1
D11
GND10
GND11 D15
D17
GND12
GND13 D19
D27 Y19
AA19
D28 AB 19
D29
D3 N20
Y18
D30 AA18
D31
D4 P21
D5 P20
R22
D6
D7 R21
R20
V20
D17 W22
D18
D19 V19
N21
D2
W21
D20 W20
D21
D22 Y22
D23 Y21
Y20
D24
D25 AB 20
AA20
D26
J22 CS_N2
M22
D0
D1 N22
T21
D10
D11 T20
U22
D12
D13 U21
U20
D14
D15 V22
V21
D16
AA1 5 A6
A7
AB1 5
Y14 A8
A9
AA1 4
V2 BO O TSEL
W1
CORE_CLOCK
V1
CORE_VCTRL0 W3
CORE_VCTRL1
CORE_VCTRL2 W2
CS_N0
K20
K19 CS_N1
AA1 1
Y16 A2
Y11 A20
A21
Y10
AB1 0 A22
A23
AA1 0
W10 A24
A25
AB9
A3
AA1 6
A4
AB1 6
Y15 A5
AB1 8
A1
Y17
AB1 4 A10
A11
Y13
AB1 3 A12
A13
AA1 3
W13 A14
A15
AB1 2
AA1 2 A16
A17
Y12
AB1 1 A18
A19
U 300
A0
C 312
R 389
VC 01_2.5
R 387
R311100K
100K
R31
0
1
2
34
5
6
7
8
ZD 303
R 619
0
0R 618
IN
2
IN
3
IN
4
8
OUT
OUT 7
6
OUT
5
OUT
F301
9
GND
1IN
R 386
VDD_CO RE
R 327
100K
R 366
100K
R 368
R 335
Q305
1
3
2
R 381
OUT
R 360
GND
1IN
2IN
IN
3
IN
4
8
OUT
OUT 7
OUT 6
5
F304
9
R 352
C301
C303
1U F
V_LED
R 326 R 328
C 307
R 376
C 315
1
2
34
5
6
7
8
Q 307
1
3
2
ZD 304
R 361
6
5
OUT
D301
F303
9
GND
1IN
2IN
IN
3
IN
4
8
OUT
OUT7
OUT
0R 616
C 302
R 382
R 375
R 378
C314
R 365
R 356
V_LED
R 339
R319100K
R 391
VC 01_2.5
1MR 364
R 334
O S C 300
2
43
1
ZD301
R 349
ZD302
VDD_CO RE
Q304
1
3
2
R 322
B_LED
C306
1
2
34
5
6
7
8
10R363
ZD 305
R 362
R31
8
R317100K
100K
R395
VCCD
9
9
100K
R31
6
16
16
2
2
3
34
4
5
56
6
7
78
8
1
1
10
10
11
1112
12
13 1314 14
15 15
1
2
34
5
6
7
8
C N 305
ZD 306
VCC D
R 388
R 342
A5
A1
_W P
VC 01_2.5
A6
F6 VC C
VCCQ
G4 VSS A3
H1
VSS
VSS H6
_C E A4
_R E B2
_W E
16
NC
17
NC B1
C1
NC
NC C2
C3
NC
NC C4
C5
NC
R/B
NC
NC
10
B6
NC
NC
11
NC
12
NC
13
14 NC
NC
15
NC NC
NC 2
3NC
NC
4
5NC
NC
6
7NC
NC
8
9NC
NC D4
D5
NC
NC D6
E1
NC
NC E2
E3
NC
NC B5
1
I/O7
I/O8
F1
I/O9
G2 LOCKPRE E6
NC B4
NC C6
D1
NC
NC D2
D3
I/O13
F5 I/O14
I/O15
G6
H2 I/O2
G3 I/O3
H4 I/O4
I/O5
E4
I/O6
G5
E5
ALE A2
CLE B3
I/O0
G1
F2 I/O1
F3 I/O10
I/O11
H3
I/O12
F4
H5
R 324
U 301
ZD307
C 308
Q301
1
3
2
1
A
2
AD
56
D
G
4
7
KK
8S3
VBAT
Q 300
Q 306
1
3
2
8
9
9
19
2
2
20
20
3
344
5
566
7
78
11 12 12
13 13 14 14
15
15 16
16
17
17 18 18
19
C N 302
1
1
10 10
11
1
2
34
5
6
7
8
ZD 309
R 380
R 341
VCCD
R 373
100K
R 622
C 309
R 390
R 367
CAM_1.8
R313100K
Q303
1
3
2
R 314
4
4
556 6
7
78
8
99
24
24
25
25 26 26
27 27 28
28
29
29
3
3
30 30
17 17 18 18
19
19
22
20
20
21 21 22 22
23
23
11
10 10
11
11 12
12
13 13 14 14
15
15 16
16
CAM_2.5
C N 304
C 304
R 331
VCC D
C 305
R 329
R 344
R345
2
Q302
1
3
R 337
R 377
R 385
C 634
V_LED
VDD_PC
C 311
R396
R393
IN
1
2IN
IN
3
IN
4
8
OUT
OUT 7
OUT 6
5
OUT
F302
9
GND
R 392
R 330
100K
R 374
R 321
100K
MAINM IC
MAIN_BL_O N
VC_SVC _G R E E N
SVC_BLUE
SVC_RED
LCD_nRESET
CAM_ON
KEY_ROW(1)K
KEY_ROW(2)K
KEY_ROW(3)K
KEY_ROW(4)K
KEY_COL(4)K
PW R_O N
BACKLIGHT1
VC _nW E
VC _nW P
VC_D(0)
VC_D(1)
VC_D(2)
VC_D(3)
VC_D(4)
VC_D(5)
VC_D(6)
VC_D(7)
VC_D(8)
VC_D(9)
VC_D(10)
VC_D(11)
VC_D(12)
VC_D(13)
VC_D(14)
VC_D(15)
VC_D(0:15)
CAM_MCLK
CAM_MCLK
VC 01_T M S
VC 01_T D O
CAM_ENB
LCD_nRESET_
VC 01_T C K
VC 01_T D I
LCD_nRESET _
SUB_BL_O N
VC_A(2)
VC_A(1)
VC _R nB
VC_CS_N1
VC _nR E
CAM_MCLK
CAM_PCLK
CAM_ENB
CVID_IN(0)
CVID_IN(1)
CVID_IN(2)
CVID_IN(3)
CVID_IN(7)
CVID_IN(6)
CVID_IN(5)
CVID_IN(4)
VC_nW E_LC D
VC_nW E
CVID_IN(6)
CVID_IN(7)
CAM_HREF
CAM_VREF
SDA
SCK
CAM_RESETB
VC_D(4)
Y4
Y7
Y5
CVID_IN(0)
CVID_IN(1)
CVID_IN(2)
CVID_IN(3)
CVID_IN(4)
CVID_IN(5)
Y0
Y1
Y2
Y3
VC_CS_N0
VC_D(1)
VC_D(7)
VC_D(6)
VC_A(2)
Y6
LED_BLUE2
VC_SVC_GREEN
CSP_SVC_GREEN
SVC_GREE N
SVC_G
SVC_GR EEN
O_LED
SVC_BLU E
SVC_B
SVC_G
VC_A(1)
KEY_COL(4)J
KEY_ROW(0)J
KEY_ROW(1)J
KEY_ROW(2)J
KEY_ROW(3)J
KEY_ROW(4)J
VC 01_INT
W M 97_O N
MMC_INS
W M 97_R E S ET B
W M 97_SD ATA_IN
VC _M _CO N
CAM_RESETB
VC_nW P
HOLE_SW 1
HOLE_SW 2 PW R_O N
HOLE_SW 4
HOLE_SW 3
O_LED
G_LED
R_LED
KEY_CO L(4)J
B_LED
KEY_ROW(0)K
KEY_CO L(3)
KEY_CO L(2)
KEY_CO L(1)
KEY_CO L(0)
HOLE_SW 2
HOLE_SW 4
KEY_RO W (0)J
KEY_RO W (1)J
KEY_RO W (2)J
KEY_RO W (3)J
KEY_RO W (4)J
LCD _R D _N
LCD _W R _N
LCD _VC _A(1)
O_LED
G_LED
R_LED
SVC_R
AM P_EN
KEY_RO W (2)K
KEY_RO W (1)K
KEY_RO W (3)K
KEY_RO W (4)K
KEY_RO W (0)K
KEY_CO L(0)K
KEY_CO L(1)K KEY_CO L(4)K
KEY_CO L(3)K
KEY_CO L(2)K
LCD_O N
LCD_W R_N
MAIN_BL_DIM
LCD_RD_N
SUB_BL_ON_
SUB_BL_DIM
LCD_D(0)
LCD_D(1)
LCD_D(2)
LCD_D(3)
LCD_D(4)
LCD_D(5)
LCD_D(6)
LCD_D(7)
SLCD_CS_N 0
M LCD_CS_N 2
LED_BLUE3
LED_BLUE4
KEY_CO L(4)
KEY_RO W (0)
KEY_RO W (4)
KEY_RO W (3)
KEY_RO W (1)
KEY_RO W (2)
VC_C S_N 0
EN_MMC
SVC_R
SVC_B
M SPK+
M SPK-
MMC_CS
R_LED
G_LED
B_LED
SVC_RE D
LED_BLUE1
VC_RnB
MAIN_BL_DIM
LCD _O N
CS_VC01
SUB_BL_DIM
MMC_DO
MMC_DI
MMC_SCLK
A(1)
CP_OEN
VC 01_W R
VC_C S_N 1
VC_nRE
VC 01_R ESET
LCD_nRESET
D(8)
D(7)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
A(1:2)
A(2)
D(0:15)
D(15)
D(14)
D(13)
D(12)
D(11)
D(10)
D(9)
VC _D (13)
VC _D (12)
VC _D (11)
VC _D (10)
VC_D(9)
VC_D(8)
VC_D(7)
VC_D(6)
VC_D(5)
VC_D(4)
VC_D(3)
VC_D(2)
VC_D(1)
VC_D(0)
CAM_HREF
W M 97_S Y N C
W M 97_SDATA_O U T
W M 97_B IT_CLK
VC_C S_N 2
V C _ D (0 :3 1 )
VC _D (15)
VC _D (14)
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
CAM _VREF
SCK
SDA
CAM_PCLK
VC_D(5)
VC_A(1)
SUB_BL_ON
LCD_D(1)
LCD_D(3)
LCD_D(5)
LCD_D(7)
M LCD_CS_N2
SLCD_CS_N0
KEY_RO W (0)
KEY_RO W (1)
KEY_RO W (2)
KEY_RO W (3)
KEY_RO W (4)
KEY_CO L(4)
KEY_COL(0)K
KEY_COL(3)K
KEY_COL(2)K
KEY_COL(1)K
HOLE_SW 1
HOLE_SW 3
VC_nRE
VC_D(3)
VC_D(2)
VC_D(0)
VC_nW E_LC D
VC_CS_N2
MAIN_BL_O N
MOT_3.3
LCD_D(0)
LCD_D(2)
LCD_D(4)
LCD_D(6)
LCD_VC_A(1)

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-7
4.Microphone Part
* Call with Sim before testing.
Check the soldered
status of microphone
MicroPhone does not work
Resolder microphone
END
No
Yes
Yes
Check the reference
voltage on mic path
C201 ≒2.0V
Yes
Resolder or change
R203, C209, R204, R201, R200,
C200
No
Is microphone OK?
Yes
Check U501
No

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-8
5.Directional MIC Part
Directional MIC does not work
*When you play MPEG file, if Audio is not active
Check MIC "+" terminal,
Bias Voltage = 2.6V?
Yes
Resolder R249
No
Check pin21 of U200,
Voltage = 1.76V?
Yes
Resolder C244
No
Change directional MIC
Yes

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-9
100U F
C 222
C 227
VCCD
1NC1
5
NC2
V+ 8
R 212
COM 1
2
COM 2 6
GND
4
7
IN1
3IN2
R 200
U 202
C 212C 211
C 635
1_SHUT
R 207
GND
GND
91 0
GND
GND
1112
GND
NC
2
VDD 6
5
VO+
VO- 8
U 201
B
3+IN
4-IN
7
C 234
R 227
C 200
R255
C 245
R 215
O S C 201
2
43
1
L203
C 217
C 241
R 224
R 222
C 220
R 225
W M _2.8D
C 233
VCCD
C 232
R 216
R 229
R232
R 211
R 209
C 230
R 204
R 234
C 219
C 243
22 NC
14
V+
C 235
4S 1
4S2
1316
D1
4D2
D3
8
D4 12
6
GND
17
GND
NC
21
1-2IN
1S1
15
11S 2
2S 1
3
5
2S2
3-4IN10
3S1
7
3S 2
9
11
U 204
2
R 219
R 210
1
2
34
5
6
7
8
C 215
ZD 200
C 214
C 229
R 235
R 250
R 203
VCCD
C 225
R 221
C 210
W M _3.3A
R 253
R 252
R 202
VBAT
R 217
R 206
C 202
C 224
C 244
VCCA
W M _3.3A
C 205
R 201
R 254
XTLOUT
VCCD
8
SDATAI
N
5
SDATAOUT
SPDIF
48
SPEN/I2S
44
10
SYNC
27
VREF
VREFOUT
28
XTLI
N
23
22
37 MONOOUT
NC 53
54
NC
12
PCBEEP
PHO NE 13
43 PW RUP/LR C
11
RESETB
39
HPOUTR
41
HSDET
46
23
LINEINL
24
LINEINR
35
LI
NEOUTL
LI
NEOUT
R
36
21
MIC1
MIC2
DVDD1
9
DVDD2
47 EAPD
49 GND
GND
50
51 GND
GND
52
HPGND
40
HPOUTL
15
DNC
DNC 16
17
DNC
25
DNC
DNC
2629
DNC
DNC
30
DNC
31
1
18
CDR 20
45 CID0
33
CX3D1
CX3D2
34
4
DGND1
7
DGND2
DNC 14
U 200
AGN D
42
38 AVDD2
6
BI
TCLKCAP2
32
19
CDGND
CDL
23
1
R 218
Q 201
R 249
R 214
C 209
R 240
C 207
C 223
R 251
W M _3.3A
C 231
L205
R 247
R 226
C 221
R 245
MIC
VCCA
C 204
C 237 C 238
VCCD
C 201
R 208
R 220
R 230
L201
L202
C 226
C 228
G
14
15 G
G
16
G17
18 G
R 233
66
77
88
99
11
GG
12
13
G
C N 201
11
10 10
22
33
44
55
C 203
R 228
VCCD
R 205 C 208 C 206
C 213
R 231
L204
EAR1P
EAR_SW ITC H
EARM IC
EAR_L
EAR_R
EARM IC
JACK_IN
HPGND
W M 97_B IT_CLK
HPOUTR
W M 97_SY N C
W M 97_SD A TA _O U T
W M 97_SD A TA _IN
HPOUTL
M SPK+
RCV_SW _EN
AOU TAN
AM P_EN
AM P_IN
DAC_M IC
EARM IC
HPOUTR
EAR1P
AOUTBP
EAR_R
AOUTBP
DAC_M ICAOUTBN
HPGND
EAR_L
MAINM IC
EAR_AUDIO_SW
AOU TAP
M SPK+
W M 97_R ESETB
AM P_IN
M SPK-
HPOUTL
MAINM IC
EAR_SW ITC H
MICIN
MICOUT
AUXIN
AUXO UT
M SPK-

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-10
6. Speaker Part
*Callbeforetesting.
Check the soldered
status of Speaker
Receiver does not work
Check the pin 7 of U202
"High"?
Resolder Speaker
Check U202 and the audio path of
U501
END
No
Yes
Yes
No
Is Speaker working?
Is Speaker working ?
Check the path from U501 to CN304
Change Speaker
No
Yes
Yes
No

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-11
7. Key Data Input
Check soldered status of
CN302 and connecting
status between KEY-FPCB
and PBA
Check the Initial Operation
END
Yes
When "#"pad pressed,
Pin 11 of
CN302=2.8V(high)?
Yes
ResolderCN302orchangeFPCB
No
Check U401
No
Yes
Check the Keypad &
Dome Sheet Replace or Adjust
the Keypad & Dome Sheet

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-12
DAIDI
5
6
3
1
4
U 503
2
R 507
VCCD
C 516
C505
C 504
DAIRN
R 504
C512
R 503
C 514
3
1
4
VCCA
C 507
U 502
2
5
6
C503
C 511
C 502
C 508
VCCD
R 502
VCCD
C 509
DAICK
DAIDO
R506
C501
R 505
R 501
XOENAQ
C506
2
5
6
3
1
4
C 513
U 504
VCCD
C 510
VCCD
N5
N12
XTALA N11
XTALB
C 515
VSS
VSS
E8
E10 VSS
G5 VSS
VSS
G10
H5 VSS
B11
VXVCM
N7
XOENA
XOENAQ
VDDD P13
D11
VREG
K5 VSS
VSS
H10
VSS
K8
K10 VSS
K6 VSS
VSS
E5
E7
B3
UC
UC A2
F1 VDD1
VDD2
P6
A1 VDD3
E13
VDDA
K13
VDDB
VDDC F14
TDI
N8 TDO
P10 TM S
H12
TXIN
J10
TXIP
TXP J14
TXQ N J13
H13
TXQ P
L11
RXQN P14
N14
RXQP
K9
SERCK
SERDA M8
SERLE1 P9
M7
SERLE2
N9 TCK
N10
OCTL9
RAREF1 K14
L13
RAREF2
REFC C13
A10 RESETN
RFOVL N6
RW N
K4
M13
RXIN
RXIP
OCTL11
OCTL2
B5
B6 OCTL3
OCTL4
B7
D5 OCTL5
OCTL6
A6
E6 OCTL7
OCTL8
C7
C8
K7
MC
A13
MICINB12
MICOUT
1
NC
NC 2
OCTL0B4
A5 OCTL1
OCTL10
A9
E9
DB8
F2
E2 DB9
DINTR
L4
GNDA E11
K11
GNDB
GNDC F10
L10
GNDD
IO
K2
DB14
C2
B1 DB15
DB2
J5
J1 DB3
DB4H3
G3 DB5
DB6
F5
DB7G2
DAIDO B8
DAIRN D10
DB0
J2
H2 DB1
DB10
D2
D4 DB11
DB12E1
DB13
E4
F13
AOUTBN E14
D13
AOUTBP
AUXINA14
AUXOUT B14
CINTR
L5
B10
DAICK
B9
DAIDI
P2
P1 AB4
AB5
N1
M2 AB6
AB7
L2
K1 AB8
AFC G12
G13
AOUTAN
AOUTAP
U 501
P5 AB0
AB1
N4
AB2
N3
AB3
TXIN
TXIP
TXQ N
TXQ P
CSP_SVC_GREEN
XOENA
LED_BLUE3
LED_BLUE4
TX_EN
PCS_RX_EN
SI_EN
RXIN
RXIP
RXQN
RXQP
C LK 13M _C SP
MICIN
XOENA
TX_BAND_SEL
TXPO W ER
GSM_TX_EN
DCS_TX_EN
SERDAT
SERLE
AOUTAP
AOUTAN
MICOUT
CLK32K
AOUTBN
RST
DSP_RW N
DSP_IO
DSP_AB(0:8)
DSP_DB(0:15) DSP_AB(8)
AFC
AUXIN
CP_INT
DSP_INT
DSP_AB(0)
DSP_AB(1)
DSP_AB(2)
DSP_AB(3)
DSP_AB(4)
DSP_AB(5)
DSP_AB(6)
DSP_AB(7)
DSP_DB(0)
DSP_DB(1)
DSP_DB(10)
DSP_DB(11)
DSP_DB(12)
DSP_DB(13)
DSP_DB(14)
DSP_DB(15)
DSP_DB(2)
DSP_DB(3)
DSP_DB(4)
DSP_DB(5)
DSP_DB(6)
DSP_DB(7)
DSP_DB(8)
DSP_DB(9)
SERCLK
AUXOUT
AOUTBP

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-13
8. LCD backlight
Backlight "ON" mode in
the menu?
Backlight does not work
Check conecting
between PBA and LCD
conector
Select backlight "ON" mode
Check FPCB
END
No
Yes
No
Check CN304 pin 28=
"high"? Check the LCD
Yes
Yes
No

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-14
9. GSM Receiver
Normal condition
catch the
channel ?
Check F601
pin 1 ≥-65 dbm
?
Check U600
pin 20,21 ≥
-65dBm ?
Yes
No
No
Check F601
pin 12,13 ≥-65
dbm ?
Yes
No
Yes
Check ANT1, C615
Resolder or change
C629
Resolder or change
F601
Resolder or change
C605, C606, L602
Resolder or change
U501
CONTINOUS RX ON
RF INPUT : 62CH
AMP : -50dbm
Check U600
pin 9, 26 = 2.8V
Yes
Resolder or change
U101 pin 39, C110,R600
Yes
No
No

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-15
TC X O (13M H z)
C 623
C 609
3VC1
VC2
5
9VC3
C 607
6DCS/
PCS_TX
EGSM_RX_
112
13
EGSM_RX_
2
EGSM_TX
4
2
G
7
G
14
G
8
PCS_RX
F601
ANT
1
DCS_RX_
110
11
DCS_RX_
2
C 617
L601
VRF
R 601
C 608
L603
L604
C615
L606
C 633
C 624 C 627
C 600
VCCOUT
20
VRAM P
45
R 607
43
VBATT
VCC1
39
VCC1GSM
46
35
VCC2DCS/
PCS
VCC2GSM
2
VCC3DCS/
PCS
2118
VCC3GSM
VCCOUT
19
9
NC
NC10
NC11
NC12
NC13
NC14
NC15
TXENABLE
41
VBATT
42
27
NC28
NC29
8
NC
NC33
NC36
NC38
NC44
NC
NC16
NC17
NC22
23
NC
NC24
NC25
NC26
NC
32
GND 34
49
GND
50
GND
GND 51
G SM 850/900IN
48 G SM 850/900O U T 6
GSMINTERGND
1
3
GND 52
GND 53
GND 54
GND1GSM
47
GND 5
7
GND
GND 30
GND
U 601
BANDSEL
40
DCS/PCSIN
37
DCS/PCSO U T 31
GND 4
R 610
C 601
R 612
C 632
1
G1G2
35
G3
IN 2
4OUT1
6OUT2
F602
C 606
C 605
L602
C 603
C 620
R 600
C 610
C 629
1
VT
C 613
O S C 600
GND
2OUT 3
4
VCC
C 616
C 611
C 626
4G
G
5
6G
C N 601
A
2
3C
1G
C 612
C 625
C 602
R 608
R 609
1
22
L607
ANT1
1
R 605
C 630
C 619
R 604
R 603
L600
L608
C 621
C 628
C 622
R 606
VBAT
VRF
R 602
32
VDD
XEN
26
XI
N
8
XOUT
27
10
_PDN
_SEN
12
R 611
SCLK
13
SDI
14
SDO
11
TXIN
5
4TXIP
TXQN
7
TXQP
6
VDD
9
RFIPN 17
RFIPP 16
RFOD
22
RFOG
23
RXIN
3
2RXIP
RXQN
1
RXQP
28
33
GND
34
GND
GND
35
36 GND
RFIDN 19
RFIDP 18
RFIGN 21
RFIGP 20
U 600
DI
AG1
24
DI
AG2
25
15
GND
GND
2930
GND
GND
31
D C S _TX _EN
PCS_RX_EN
GSM_TX_EN
RXQP
TXIP
TXIN
TXQP
TXQN
13M H Z _SIC LK 13M _TR
C LK 13M _C SP
C LK 13M _R F
AFC
13M H Z _SI
JT A G _A N T
TXPOW ER
SERLE
SI_E N
C LK 13M _R F
SERDAT
SERCLK
RXQN
RXIP
RXIN
GSM_PAM_IN
DPCS_PAM_IN
GSM_PAM_IN
DPCS_PAM_IN
TX_BAND_SEL
TX_EN

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-16
10. DCS Receiver
Normal condition
catch the
channel ?
Check F601
pin 1 ≥-65 dbm
?
Check U600
pin 18, 19 ≥
-65dBm ?
Yes
No
No
Check F601
pin 10,11 ≥-65
dbm ?
Yes
No
Yes
Check ANT1, C615
Resolder or change
C629
Resolder or change
F601
Resolder or change
C607, C608, L603
CONTINOUS RX ON
RF INPUT : 698CH
AMP : -50dbm
Check U600
pin 9, 26 = 2.8V
Yes
Resolder or change
U101 pin 39, C110, R600
Yes
No
No
Resolder or change
U501

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-17
11. PCS Receiver
Normal condition
catch the
channel ?
Check F601
pin 1 ≥-65 dbm
?
Check U600
pin 16,17 ≥
-65dBm ?
Yes
No
No
Check F601
pin 8 ≥-65 dbm
?
Yes
No
Yes
Check ANT1, C615
Resolder or change
C629
Resolder or change
F601
Resolder or change
C609, C610, L604, F602
CONTINOUS RX ON
RF INPUT : 660CH
AMP : -50dbm
Check U600
pin 9, 26 = 2.8V
Yes
Resolder or change
U101 pin 39, C110
Yes
No
No
Resolder or change
U501