samsung sgh-f300 service manual
TRANSCRIPT
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3. Flow Chart of Troubleshooting
3-1
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3-1.Baseband3-1-1. Power ON
'Power ON' Does not work
Check the current consumption
Current consumption
≥100mA ?
Check the battery voltage
Down load again
Voltage ≥ 3.3V ?
Check the pins of U838
C215 ≥ 1.8V ?
Check the Initial operation
END
C217 and C218 = 2.8V?
Charge the Battery
Check the clock generation circuitTCX100
Check the clock signalat pin #3 of TCX100
Freq.=26MHz,Vrms ≥300mV
Check U838 and C219
Check U838 and C215
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
C219=1.5V?
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Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
3-2
K12
1SS
V5
G2S
SV
4K
3SS
V2
R6
P4S
SV
MC
VXV
31R
QA
NEOX
1D
VLDO_2 J12A13VLDO_3
VLDO_4 B12
VLDO_5 B10
VLDO_6 A14VLDO_7 C12
VREF A10
NG
ERV
41R
PG
ERV
31M
VRTC H11VSIM
5N
2OI_
DD
V4J
LTC
O_D
DV
4C
VEXT E14
VIB_DRV F15
9LNE_
GN
R_BIV
VL4S_A A12VL4S_B B11
VL5S_A D10C9VL5S_B
VLDO_1 G11
E13
1D
DV
3J
VDD12 J13
2D
DV
3M
3D
DV
6N
C11VDD34
5D
DV
01C
76D
DV31
B
BD
DV
6A
DD
DV
11N
VD
DV11L
1OI_
DD
V
B1 SERLE1SERLE2A2
SIM_CLK K14
SIM_IO J11SIM_RST K11
PXT7E
UP_CLK N9
UP_IO P10UP_RST R10
VACC F14
VBAT
KLC_
CTR
4N
RWNL2
NIXTXR
6D
PIXTXR
7D
NQXTX
R6
CP
QXTXR
7C
SCLK_PSC L8
M7SDI_PSCSDO_PSC N7
SERCKC2C1 SERDA
OCTL7
FU
B_1W
SP7L
PEE
K_R
WP9
M
N1W
S_R
WP51
C2
WS_
RWP
41C
1FER
AR
6B
2FER
AR
5B
R3 RESETN_CSP
O_TE
SER
9K
RING_DRV F13
RTC_ALMNH10
ED
OM
01N
15
CN
6C
N2
OCTL0E6C5 OCTL1F5 OCTL2E5 OCTL3
OCTL4A4G6 OCTL5
OCTL6B3A3
51B
2CS
P_D
NG
51K
QRT
NI01L
L3 I|O
LED1_DRV G13LED2_DRV G12
CM
6R
41M
NNI
CIM
PNI
CIM
41N
NTU
OCI
M51
PPT
UO
CIM
51N
3S
DN
G9F
4S
DN
G01F
5S
DN
G7
G6
SD
NG
8G
7S
DN
G9
G8
SD
NG
01G
9S
DN
G6
H
VD
NG
31P
RU
CH_
DN
G11F
LTC
O_D
NG
4B
1CS
P_D
NG
QD
NG
8E
1S
DN
G7F
01S
DN
G7
H11
SD
NG
8H
9H
21S
DN
G31
SD
NG
7J41
SD
NG
8J51
SD
NG
9J01J
61S
DN
G71
SD
NG
01K
2S
DN
G8F
K3J5 DB3
DB4J6DB5H5DB6G3DB7G4DB8F4
F1 DB9
3PRT
NID
BD
NG
6F
01M
DD
NG
6L
ODI
AD
6M
NRI
AD
4P
DB0K1K2 DB1
DB10F2DB11F3
E2 DB12DB13E3DB14D3
D2 DB15
DB2
PNIX
UA
51M
NTU
OXU
A31L
PTU
OXU
A31
K3
CD
A_XU
A31
D
CH_BDRV E11CH_ISEN F12CH_RES D14
E9CREF
CSN_PSC K8
KCI
AD
4R
IDI
AD
AB7AB8K5
ADC_AUX1 E10
ADC_AUX2 D15
5P
4XU
A_C
DA
CFA
9D
NAT
UO
A21
NP
ATU
OA
11P
NBT
UO
A21
PP
BTU
OA
21R
NNIX
UA
41L
U838
AB0K6P1 AB1
AB2L5N1 AB3
AB4N2AB5M2AB6M1
K7
C209
VCCB_2.9V
TP_CSN_PSC
R214
C202
VCCB_2.9V
R211
TP_VACCT_DSP_IO
R205
VCCD_2.8V
VCCA_2.8V
BAT200
12
R204
C220
VCCA_2.8V
VBAT
R210
VBAT
VRF_2.8V
C215
132C
C218
VRF_2.8V
VRTC_1.5V
302C
VLDO_1.5V
HPEIO_1.8V
VCCD_2.8V
232C
C221
VLDO_1.8V
332C
C216 C217
322C
C201
212R
SUB_BATT
C228
VBAT
C214
TH200
C219
C230
C200
FLASH_RESET
ICHRG
EAR_ADC
FU
B_1W
SP
QA
NE
OX
RX_ENPAC_EN
DSP_IODSP_RWN
SX_EN
NNI
XU
A
NTU
OXU
A
BAND_SELMOD_SEL
XOENATX_EN
PNI
CIM
NNI
CIM
PTU
OCI
MNT
UO
CIM
PNI
XU
A
PTU
OX
UA
UP_SDOUP_SCLKUP_CS
GSM_TX_ENDCS_TX_EN
PI_XTR
NI_XTR
PQ_
XTR
NQ _
XTR
PAT
UO
AN
ATU
OA
PBT
UO
AN
BTU
OA
K23KL
C
PS
C_M31
KLC
NO_
RW
PN
O_GIJ
SIM_RSTSIM_IO
VSIM
SIM_CLK
DSP_DB(14)DSP_DB(13)DSP_DB(12)DSP_DB(11)DSP_DB(10)DSP_DB(9)DSP_DB(8)DSP_DB(7)DSP_DB(6)DSP_DB(5)DSP_DB(4)DSP_DB(3)DSP_DB(2)DSP_DB(1)DSP_DB(0)
DSP_AB(0:8)
DSP_AB(8)DSP_AB(7)DSP_AB(6)DSP_AB(5)DSP_AB(4)DSP_AB(3)DSP_AB(2)DSP_AB(1)DSP_AB(0)
TNI_
PS
D
SERLESERDATSERCLK
CPAV
CFA
DSP_DB(15)
INTRQPWR_KEEPRST
RTCALARM
UP_SDI
SIMCLK
SIMDATASIMRST
DSP_DB(0:15)
VRF_2.8V
C125
R112
C126
C129
R113
R111
AFC
CLK26M
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Flow Chart of Troubleshooting
3-3
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Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
3-4
3-1-2. Initial
The voltage at the C215=1.8V?The voltage at the C218=2.8V?
Initial Failure
The voltage at the VR301" Low --> High" ?
There is 32.768KHz waveform at the C317, C318 ?
The voltage is 2.8Vat the C216,C217,C218 ?
LCD Display OK ?
Sound operation OK ?
END
Check the UCP300
Check the U838
Check the LCD part
Check the Audio part
YES
NO
NO
NO
YES
YES
YES
YES
NO
NO
NO
YES
Check the U838(If it has some problem,
it has to be replaced.)
Check the U838(If it has some problem,
it has to be replaced.)
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Flow Chart of Troubleshooting
3-5
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C307
TDI
C318
TP_ROM1_CS
HP_CORE_1.57V
C310
TDOTP_OEN
R325
R327
C305
CTR2
X
2S
SV
3S
SV
8G
9G
4S
SV
5S
SV
8H
9H
6S
SV
7S
SV
01H
11H
8S
SV
9S
SV
21H
D_A
SSV
11R
81FU_
AS
SV
CTR1
X91
H91F
1S
SV
2A
21J01
SSV
11SS
V8
K7L21
SS
V31
SS
V8L8
M41
SS
V51
SS
V9
M01
M61
SS
V71
SS
V11
M21
M81
SS
V
81A
8W
81W
81_8P1_
OI_D
DV
6B
2_8P1_
OI_D
DV
3_8P1_
OI_D
DV
21B
61B
4_8P1_
OI_D
DV
5_8P1_
OI_D
DV
1C
41C
6_8P1_
OI_D
DV
7_8P1_
OI_D
DV
9D
81D
8_8P1_
OI_D
DV
1F9_8
P1_OI_
DD
V
81G
CTR
V
6E
RO
C_D
DV
7E
RO
C_D
DV
7V
31V
8E
RO
C_D
DV
1_8P1_
OI_D
DV
4B4L
01_8P1_
OI_D
DV
11_8P1_
OI_D
DV
61L1
P21_8
P1_OI_
DD
V31_8
P1_OI_
DD
V81T
1U
41_8P1_
OI_D
DV
5U
51_8P1_
OI_D
DV
21U
61_8P1_
OI_D
DV
71_8P1_
OI_D
DV
21R
NTS
RT
0XT
3M
1XT
7K
11TD_
AD
DV
71FU_
AD
DV
1E
RO
C_D
DV
8B
31B
2E
RO
C_D
DV
3E
RO
C_D
DV
2G
81H
4E
RO
C_D
DV
5E
RO
C_D
DV
2M
81N
4R
SPRXD1_PIO17 M17
DS2I_0
DXT
PS
2U
SPTXD1_I2SD_PIO16 N16
TCK U14V14TDI
TDO T12
TEST1 U15T14TEST2
TEST3 V16
SMT
41W
71H
2N
40OI
P_0ST
R
V6RWN
82Q
RI_0X
R1
M
6L82
QRI_1
XR
KLC
MIS
4P
2TOI
MIS
3R
0KL
CP
SM18SPCLK1_PIO18
3T0
SFP
S
SPFS1_PIO15 N15
0D
XR
PS
51JKL
C_IC
M_83OI
P
41LN
E_D
MC_I
CM_93
OIP
NE_TA
D_IC
M_04OI
P41
M
XTA
DRI_14
OIP
61R
XR
AD
RI_24OI
P71
R
41N
NE_0TA
D_ IC
M_34OI
P
J16PIO475
G64
OIP_1
MW
PNTS
ER
51G
10OI
P_OI
R3
P
NM
RAL
ACT
R
61U
72OI
P91
U71
W82
OIP
E14 PIO30_WAITN
PIO31_IRQ6 P12
23OI
P31
R
U18PIO33PIO34 R14
PIO35_A_A25_BOOTSELF2
61FN
EO_B
SU_63
OIP
ATAD_B
SU_73
OIP
71E
81C
71D
OP
V_BS
U_21OI
PO
MV_B
SU_31
OIP
61E
5P
TS
RMI
S_41OI
P
51P
PE
EK
RW
P_91OI
PQ
ER
KLC
SY
S_02OI
P91
P
0TAD_I
CM_12
OIP
31K
1TAD_I
CM_22
OIP
21L31L
2TAD_I
CM_32
OIP
3TAD_I
CM_42
OIP
51L
91V
52OI
P62
OIP
3H
8D
RBY
EK
9D
RB
YE
K6
G
11
CN
2C
N2
61G
TU
O23C
SO
PIO00_IRQ5 P16
91B
PS
US_B
SU_70
OIP
DM
C_IC
M_80OI
P31J
91C
IP
V_BS
U_90OI
P
01OI
P71
V
IM
V_BS
U_11OI
P
IRQ4
7J0
DRB
YE
K1
DR
BY
EK
6J 4G
01D
RBY
EK
11D
RBY
EK
2H
5J2
DRB
YE
K4J
3D
RBY
EK
8J4
DR
BY
EK
FU
B_1W
SP_5
DRB
YE
K6
H4
H6
DRB
YE
K7
DRB
YE
K1
H
T8T9D_D8
D_D9 R9
FLASHRSTNH14
T15INT0IO W6
V12IOBIT0_PIO05IOBIT1_PIO06 N11
M16IRQ1M19IRQ2
IRQ3 P17P18
D_D11 P9N8D_D12
D_D13 N9N10D_D14
D_D15 P11
R7D_D2D_D3 T7
R8D_D4D_D5 V8
U8D_D6D_D7
W2W3D_A2
D_A3 V3U4D_A4
D_A5 T5V4D_A6
D_A7 N6R6D_A8U6D_D0T6D_D1
P8D_D10
E12
A_OENB14D14 A_WEN
21W
IK
C
N12CKO_IACK
T17CPTSTSTOP_CKO
92OI
P_0ST
C6
M5
N44
OIP_0
DC
D
2P
20OI
P_0R
SD
30OI
P_0RT
D4
N
V1D_A0D_A1
A_D13D12E13 A_D14
A_D15D13
F9 A_D2A_D3G10
G11 A_D4A_D5F11
E11 A_D6A_D7G12A_D8D11A_D9
A_CS2NA_CS3NJ14
D15 A_CS4NA_CS5NC16
F15 A_CS6NA_CS7NB17
A8 A_D0A_D1E9
C12 A_D10A_D11A12
F12 A_D12
A6C6 A_A4
A_A5C5D7 A_A6
A_A7E7C4 A_A8
A_A9C2
H16 A_BE0NA_BE1NA17
A14 A_CS0NA_CS1NC15
G14
E8 A_A16A_A17F8
E6 A_A18A_A19D2
A_A2D8
E4 A_A20A_A21E3
F5 A_A22A_A23F4
F3 A_A24
A_A3
L5T13ATDO_PWM2
K12ATMS_PIO45
B7 A_A0A_A1C8
A3 A_A10A_A11B3
B1 A_A12A_A13D6
D5 A_A14A_A15D3
HP_CORE_1.57V
UCP300
M4ATCK_CTS1ATDI_RTS1
C309
C317
R304
OSC300
HPEIO_1.8V
C308
TP_RAM1_CS
R324
TMS
C302
TCK
R323
C306
GND
VRTC_1.5V
C311
HPEIO_1.8V
C304C303
TP_MV_CS
R326
TP_WEN
MIC_AMP_EN
CARD_INS
SUB_BATT_SW
D_SDA_HPE
RADIO_SEL
MP3_ENABLE
MP3_SDAMP3_SCL
HOLDKEY_EL_ON
MODE_SELECT
LCD_CON
D_SCL_HPE
USB_ON
BT_RTSBT_RXDBT_TXD
BT_EN
D_SDA
PCM_SYNCPCM_INPCM_OUTPCM_CLK
ROM2_CS
A(0)
RAM1_CS
CHG_DET
R_RW
MV_INTJACK_ININTRQ
CP_TMS
TR_RSTCLK13M_HPE
DSP_INTDSP_IODSP_RWN
VIB_EN
AMP_EN
DAC_RESET
MV_RSTVBUS_GPIO
CF
FLIPPER_USB
D_SCL
BT_CTS
SDS_RXD
KEY_COL(0:4)
KEY_COL(4)KEY_COL(3)KEY_COL(2)KEY_COL(1)KEY_COL(0)
KEY_ROW(0:4)
KEY_ROW(3)KEY_ROW(2)KEY_ROW(1)KEY_ROW(0)
KEY_ROW(4)
PSW1_BUF
RTCALARM
MVCORE_ONEAR_SWITCHCHG_OFF
CLK32K
XOENAQPWR_KEEP
USB_CON
CP_TDOCP_TDICP_TCK
DSP_DB(2)DSP_DB(3)DSP_DB(4)DSP_DB(5)DSP_DB(6)DSP_DB(7)DSP_DB(8)DSP_DB(9)
USB_DET
USB_VMO
USB_DATA
USB_VPO
USB_OEN
UP_SCLK
USB_SUSP
UP_SDO
UP_CSUP_SDI
SDS_TXD
DSP_AB(5)DSP_AB(4)DSP_AB(3)DSP_AB(2)DSP_AB(1)DSP_AB(0)
DSP_AB(8)
DSP_DB(0:15)
DSP_DB(0)DSP_DB(1)
DSP_DB(10)DSP_DB(11)DSP_DB(12)DSP_DB(13)DSP_DB(14)DSP_DB(15)
D(14)D(13)D(12)D(11)D(10)D(9)D(8)D(7)D(6)D(5)D(4)D(3)D(2)D(1)D(0)
CP_WENCP_OEN
FLASH_RESET
MV_CS
ROM1_CS
UPPER_BYTELOWER_BYTE
SIMDATASIMCLK
SIMRST
DSP_AB(0:8)
DSP_AB(7)DSP_AB(6)
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)
A(22)A(23)A(24)
A(0:25)
D(0:15)
D(15)
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Flow Chart of Troubleshooting
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3-6
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Flow Chart of Troubleshooting
3-7
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3-1-3. Charging
Abnormal charging part
The pin #19,20of IFC 502VEXT ≥ 5V?
Replace TA, Check IFC502NO
The pin #5of U200 is"low"?
check the U200,R255NO
YES
YES
The pin #10 of U2003.5 ~ 4.2V? check the U200
NO
YES
The pin #4 of U839is
"High"?check the U839
NO
YES
END
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Flow Chart of Troubleshooting
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3-8
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Flow Chart of Troubleshooting
3-9
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Flow Chart of Troubleshooting
3-10
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3-1-4. Sim Part
The voltage is 2.8Vat the pin #6 of SIM200?
Check the U838
"Insert SIM" is displayed on the LCD
END
Check the SIM Card
YES
NO
NO
YES
Is there any signalpin #1,2,4 of SIM200 ?
Check the U838 & UCP300
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Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
3-11
C207
NC
1 122
3 344
5 56 6
NC78
SIM200
C208 C206C204 C205
SIM_CLK
VSIM
SIM_IO
SIM_RST
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Flow Chart of Troubleshooting
3-12
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3-1-5. Speaker Part
Is the terminal of speaker O.K?NO
Replace the speaker
Are there any signalat the pin #1, 3 of CN400?
YES
Check the CN400
There is no sound from speaker
YES
NO
Are there any signal at thepin #J4,J5 of UCD400?
NOYES
the voltage of L400 is 3.3V? check R414, R415?
Check U202
NO
the voltage ofC247 is 1.8V?
NO
YES
YES
END
Are there any signal at the pin#G8,F9,G9 of UCD400? Check UCP400
NO
YES
Check U838
Check U208
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Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
3-13
C451
R442
B1
VIMC1
A1 VIP
VOM A3
C3VOP
A2
VSS
U403
NE
2C
CN
1
CN
2
DD
VP2
B
B3PVSS
VDD
C453
C450
R448
R447
R443
L402
VBAT
L401
C458
R446
L403
TA400
C452AMP_EN
SAPA_P
SAPA_N
DAC_SPKP
DAC_SPKM
8 89 9
11NC NC
12
11
10 10
2 23 3 44
55 667 7
CN400
MOT_3.3V
SPK_PSPK_N
GND
IN14
IN2 8
NC15
NC2 7
NO12
NO2 10V+1
U401
3 COM1
9COM2
6GND
11R445
C448 C449
R444
C455
VBAT
C454
AMP_EN
SAPA_N
SAPA_P
AOUTAP
AOUTAN
SPK_P
SPK_N
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Flow Chart of Troubleshooting
3-14
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Flow Chart of Troubleshooting
3-15
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3-1-6. Camera Part
Camera function does not work
Check the connect CN503?NO
Connect the CN503
Pin #5 of U208= 1.8V?NO
NO
Pin#3 of OSC400 is 24MHz?NO
Pin #4 of U205 = 2.8V?
END
YES
YES
YES
YES
Is that clock signal at thepin #3 of CN503?
NO
Pin #1 of U205 = High?
YES
Check the U208&L201
CheckUCP300
NO
NO
Pin#13 of CN503 is High? CheckUCP400
Replace OSC400and check UCP300
YES
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3-16
C247TA205
L201
4
2 GND
SW 5VIN1
U208
EN3 FB
VBAT
002F
2
13
VLDO_1.5V HPEIO_1.8V
C514
245R
V
C518 C520
545RV
445RV
VCAM_1.5V
C513
015C
C515
VCAM_2.8V
C527
045R
V
D1NS201
GA51
MLB
345RVL501
C517
L500
C516
745RV
C519
645RV
Y(0)Y(1)
Y(3)
Y(5)Y(4)
Y(6)Y(7)
CAM_SDA
CAM_MCLKCAM_SCL
VSYNC
HSYNCCAM_RESET
CAM_PCLKY(2)
C243C245
VCAM_2.8VVBAT
2 GND
6GND
5NCSTBY1
3 VIN4VOUT
U205
VCAM_EN
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3-17
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3-18
CheckU202
CheckUCD400
3-1-7. Mp3 Part
NO
Replace the Earphone
Are there any signalat the pin #5,7 of CN502?
NO
Check C422, C423and VR526, VR527
There is no MP3 sound from Earphone
YES
YES
The voltage of C237is 3.3
NO
YES
END
Check the UCD400
Are there any signalat the pin #9 of CN502?
Are there any signalat the pin #C8,D8 of UCD400?
NO
YESThe voltage of L400
is 3.3V?
YES
The voltage ofR213 is 1.8
NO
YES
END
NO
Check U838
Check the CN502
Check the UCP300
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3-19
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954C 124
C
C423
434C
HPEIO_1.8V
R417
334C
VCCA_2.8V
DAC_3.3V
914C
104AT
GPIO1 J9
2A
DDV
A1J
MONO_LOPJ2
MONO_LOMJ3
LEFT_LOPJ4
LEFT_LOMJ5
RIGHT_LOPJ6
RIGHT_LOMJ7
GPIO2J8
HPROUT G1
CA
D_SS
VA
2G
MCLKG8
BCLK G91
AD
DV1
H
CA
D_S S
VA
2H
/RESETH8
DD
VD
9H
HPLCOME1
SS
VR
D2E
SELECTE8
DINE9
HPRCOMF1
SS
VR
D2F
DOUT F8
WCLKF9
1A
DD
V1
C
CD
A_SS
VA
2C
SCLC8
DD
VOI
9C
HPLOUT D1
CD
A_SS
VA
2D
SDAD8
SSV
D9
D
MICDETB2
MIC3LB3
LINE2RPB4
LINE2LMB5
LINE1RMB6
LINE1RPB7
MFP0B8
MFP1B9
LINE2RMA3
LINE2LPA4
LINE1LMA5
LINE1LPA6
NC A7
MFP2A8
MFP3A9
1A
DDV
1B
TLV320AIC33IZQER
UCD400
NC 1
NC2
MIC3RA1
MICBIASA2
C422
C432
L400
R415
024C
C436
R416
C437
R414
424C
524C
C429
1UFC430
C4281UF
C431814
C
DAC_SPKMDAC_SPKP
AOUTBNAOUTBP
MICN
MICP
CSP_MICPCSP_MICN
FMA_RFMA_L
IF_EAR_L
IF_EAR_R
D_SCLD_SDA
D_SDOUTD_SDIN
D_LRCKD_MSCK
D_BCK
DAC_RESET
R506
100K
R511
825RV
025RV
R510
C529
VBAT
525RV
215R
180K
R504
725RV
225RV
HPEIO_1.8V
405DZ
425RV
325RV
R505
100K
505DZ
R508
035C
705R
ZD503
NC 28
135C
889 9
21NCNC22
NC2324 NC
NC 2526NC27NC
22
2020
3344
556
67 7
1212
1313
141415
1516
1617 17
181819 19
CN5021
1
101011
11
VCCD_2.8V
125RV
925RV
USB_5V
R509
625RV
C528
USB_D-
FM_ANT
EAR_SWITCH
TA_VEXT
EAR_ADC
EAR_MIC_PEAR_MIC_N
IF_EAR_R
IF_EAR_L
JACK_IN
T_OPTSDS_RXD
JIG_ON_IFUSB_D+
VBAT DAC_3.3V
C236
2 GND
6GND
NC 51 STBY
3 VINVOUT 4
U202R213
HPEIO_1.8V
C237
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3-20
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3-21
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3-1-8. External Battery
The SGH-F300 does not detectthe external battery
Check the state of the 3-pin connector between SGH-F300 and External battery, External battery voltage.
Check the state of 3-pin connectorIn external battery is OK?
Check the voltage ofExternal Battery
Vext > 3.2 ?
Check the voltage ofExternal Battery
Vext > 3.2 ?
END
Replace the external battery
Replace the external battery
Replace the 3-pin connector in SGH-F300
YES
YES
YES
NO
NO
NO
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3-22
G N D V extV f
Pin A rray of ex ternal battery
The 3-pin connector of ex ternal battery
The 3-pin connector of SG H -F300
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3-23
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3-1-9. BLUETOOTH
BT connection disable
check BT function ON Check the S/W
Is the Antenna of BT OK? Change BT Antenna
check the BT_EN R120R120 is High? replace UCP300
Is the voltage 1.8Vat C140 or at pin#3 of U103 Change BT Antenna
END
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3-24
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3-25
LayoutLayout
ㅠㅂ
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3-26
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3-2.RF
3-2-1. EGSM RX
Continuous RX ONRF Input : 62 CH
AMP : -50dBm
NORMAL CONDITIONCatch the channel ?
YES
NO
DUF100 CheckPin #13 ≥ -65dBm ?
DUF100 CheckPin #5,6 ≥ -65dBm ?
U100 CheckPin#6, 7 ≥ -65dBm ?
Check soldered status ofR121
RFS100, C103, L100Resolder or Change
DUF100 Resolder or Change
U100 CheckPin#34 =Clean 2.8V?
U100 CheckPin#35,36,37,38=100mV?
C106Check or resolder
Check U838
NO
NO
YES
YES
YES
NO
YES
U100 CheckPin #21 : 26MHz ?
Vpp : 1.1V?
R113 = 26MHz ?Vpp = 1.2V? R111 = 2.8V ?
U100Change or resolder
NO
NO NO
C125, C129resolder
TCX100Change or resolder
YES YES YES
NO
Check soldered status ofL102, L103, C112
YES
NO
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3-27
3-2-2. DCS RX
Continuous RX ONRF Input : 660 CH
AMP : -50dBm
NORMAL CONDITIONCatch the channel ?
YES
NO
DUF100 CheckPin #13 ≥ -65dBm ?
DUF100 CheckPin #3,4 ≥ -65dBm ?
U100 CheckPin#8,9 ≥ -65dBm ?
Check soldered status ofR121
RFS100, C103, L100Resolder or Change
DUF100 Resolder or Change
U100 CheckPin#34 =Clean 2.8V?
U100 CheckPin#35,36,37,38=100mV?
C106Check or resolder
Check U838
NO
NO
YES
YES
YES
YES
NO
YES
U100 CheckPin #21 : 26MHz ?
Vpp : 1.1V?R113 = 26MHz ?
Vpp : 1.2V? R111 = 2.8V ?
U100Change or resolder
NO
NO NO
C125, C129resolder
TCX100Change or resolder
YES YES YES
NO
Check soldered status ofL104, L105
NO
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3-28
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3-2-3. PCS RX
Continuous RX ONRF Input : 660 CH
AMP : -50dBm
NORMAL CONDITIONCatch the channel ?
YES
NO
DUF100 CheckPin #13 ≥ -65dBm ?
DUF100 CheckPin #8,9 ≥ -65dBm ?
UCP100 CheckPin#1,2 ≥ -65dBm ?
Check soldered status ofR121
RFS100, C103, L100Resolder or Change
DUF100 Resolder or Change
U100 CheckPin#34 =Clean 2.8V?
U100 CheckPin#35,36,37,38=100mV?
C106Check or resolder
Check U838
NO
NO
YES
YES
YES
YES
NO
YES
U100 CheckPin #21 : 26MHz ?
Vpp : 1.1V?R113 = 26MHz ?
Vpp : 1.2V? R111 = 2.8V ?
U100Change or resolder
NO
NO NO
C125, C129resolder
TCX100Change or resolder
YES YES YES
NO
Check soldered status ofL106, L107
NO
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3-29
VRF_2.8V
C125
R112
C126
C129
R113
R111
AFC
CLK26M
R108
VRF_2.8V
L102
L103
421C
C101
221C
TP
L104
C123
C117
BHXT
14D
NG
5850LNA_P
6900LNA_N
7900LNA_P
81800LNA_N
91800LNA_P
NO
MOL
43A
NEGI
DV
PI_XT|PI
53 63MI_XT|
MI
73M
Q_XT|M
Q
83P
Q_XT|P
Q
93BLXT
4850LNA_N
04
SXENA
27CHIPENA
28NC
29NC
3VPC
30NC
31NC
233
CCV
33
FU
BX|ZH
M62_ZH
M31
2TXENA
02E
NUTX
21XTAL
22VCC2
23DATAIN
24LATCHENABLE
25CLK
26
1900LNA_P
21A
NEXR
314
CCV
41NIF
RXT
51C P
AV61
PPM
OC
71NP
MO
C81
JD
AFPL
91
U100
1VCC1
101900LNA_N
11
L105
R121
C102
C112
C114
VBAT
311C
C103
701R
C105
L106
C108C107C106
L100
L107
C121
511C
TP
ANT
DPCS_OUTGSM_OUT
GSM_TX_ENDCS_TX_EN
CLK26M
VAPC
XOENA
13M_BUF
VPC
MOD_SELRTX_IPRTX_IN
RTX_QNRTX_QP GSM74137_OUT
DCS74137_OUT
TX_EN
SX_ENSERCLK
SERLESERDAT
RX_ENTX_FB
SAT_DET
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3-30
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3-31
3-2-4. EGSM TX
Continuous TX ON conditionTX Power Code : 500 code Applied
CH : 62RBW : 100KHzVBW : 100KHzSPAN : 10MHz
REF. Level : 10dBmATT. : 20dB
C120>= 3.7V?
Change PAM100
NO
YES
DUF100 Pin#13About 2~3 dBm?
DUF100Pin#11 = High?
U838Check & Change
NO
DUF100, C103Check & Change
YES
DUF100Check & Change
YES
Check theBattery Block
Level of PAM100Pin #6 is
1.2V?
CheckU838 TXP OK ?
U838Check & Change
YES
YES
NO
NO NO
NO
PAM100 pin#12About -5 dBm?
PAM100 pin#7High ? Check U838
YES
NO
YES
C106 ≥ 2.8V ?
U100 CheckPin #21 : 26MHz ?
Vpp : 1.1V?R113 = 26MHz ?
Vpp : 1.2V?R111 = 2.8V ?
NO
YES
NO
NO NO
C125, C129resolder
TCX100Change or resolder
YES YES YES
NO
C105,107,108,U838Check or resolder
U100 Pin#34, = 2.8V?
YES
Change PAM100Check U838
NO
YES
Level ofDUF100 Pin#10 is
4~5dBm ?
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3-32
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3-2-5. DCS/PCS TX
NO U838Check & Change
DUF100Pin#9 = High?
DUF100 Pin#13About 2~3 dBm?
NO
YESYES
Level ofDUF100 Pin#8 is
4~5dBm ?NODUF100, C103
Check & Change Continuous TX ON conditionTX Power Code : 500 code Applied
CH : 698RBW : 100KHzVBW : 100KHzSPAN : 10MHz
REF. Level : 10dBmATT. : 20dB
YES
DUF100Check & Change
NO Check theBattery Block
C120>= 3.7V?
YES
NONO U838Check & Change
CheckU838 TXP OK ?
Level of PAM100Pin #6 is
1.2V?
YESYES
YES PAM100 pin#14About -5 dBm?
NO
NOCheck U838PAM100 pin#2
High ?
YES
Change PAM100
C105,107,108,U838Check or resolder
NOC106 ≥ 2.8V ?
YES
NONONOU100 CheckPin #21 : 26MHz ?
Vpp : 1.1V?R111 = 2.8V ?R113 = 26MHz ?
Vpp : 1.2V?
YESYESYES
TCX100Change or resolder
C125, C129resolderNO U100 Pin
#34, = 2.8V?
YES
Check U838 Change PAM100
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3-33
R101
R100
901R
021C
12
RSVD8
VBATT5
VPC6
4 VSUP
1
15GND
GND 9
GND 13
GND 11
10GND
GND17
7 GSMIN
GSM_OUT
PAM100
BS3
COUP_OUT 16
DCS|PCS_IN2
14DCS|PCS_OUT
ENA
811C
911C
VBAT
601R
011R
111C
611C
R102
R103 011C
L101
C109
501R
401R
C104TX_FB
BAND_SEL
SAT_DET
DPCS_OUT
PAC_EN
GSM_OUT
DCS74137_OUT
GSM74137_OUT
VPC