06_Troubleshooting.pdf

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10. Flow Chart of Troubleshooting
10-1.Baseband
10-1-1. Power ON
'Power On' does not work
Check the current consumption
Yes
Current consumption
>= 100mA
No
Download again
Yes
Check the Vbat Voltage
Voltage >=3.3V
No
Charge the Battery
Yes
Check the pin of UCP300
Pin#A6 :1.8V
Pin#D6 :2.9V
No
Check UCP300
C332 and C331
Yes
Pin#M7 :2.9V
Pin#L8,#P4 :1.8V
No
Check UCP300
C300,C301,C303
Yes
Yes
Check the clock signal at Pin#12(C118) of RFT100
Freq =26MHz
Vrms >=300mV
Vpp ≒ 900mV
No
Check the clock generation circuit
(related to OSC100, Pin#9, Pin#10)
Yes
Check the initial operation
END
10-1
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This Document can not be used without Samsung's authorization
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Flow Chart of Troubleshooting
P13
L300
USB_CARKIT_D_N
P12
USB_CARKIT_D_P
C10
USB_CHRG
A6
VLDO_1
D6
VLDO_2
C332
UCP300
E14
VLDO_AUD
C331
F12
VLDO_AUX1
D14
VLDO_AUX2
C311
C15
VLDO_COREA
B15
VLDO_COREA_S
C313
TH300
R306
C12
VLDO_COREB
D13
VLDO_COREC
R331
R303
C308
C340
C305
C307
C306
C320
C323
C309
C346
C345
C315
C301
VCCD_2.9V
VCCA_2.8V
VCCD_1.8V
R413
C425
R410
R409
C402
C318
C317
R238
C300
C301
C302
C303
C302
VR200
R251
R267
C304
C303
A4
ADC_AUX1
B4
ADC_AUX2
B3
ADC_AUX3
A2
G
B1
ADC_AUX4
UCP300
ADC_AUX5
R331
C1
ADC_AUX6
C2
C309
C346
C345
C315
C340
C301
1
26
RTX_I_P
A
VDD4
2
25
RTX_I_N
AX
RX1X
3
24
RTX_Q_P
B
RX1
4
23
RTX_Q_N
BX
VDD1
RX2X
GSM_
GSM_
5
22
RFT100
RX2
6
21
FSYS3
GND
C112
7
20
CLK26M_BT
FSYS2
RX3X
DCS_L
8
19
VDD2
RX3
DCS_L
9
18
XO
RX4X
10
17
XOX
RX4
VRF_1.5V
C120
C101
C116
C115
C119
OSC100
C113
C118
CLK26M_DBB
SBCK
SBDT
C11 8
C119
SBLE
10-2
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Flow Chart of Troubleshooting
10-1-2. Initial
Initial Failure
Yes
The Pin#A6 of UCP300 =
1.8V and
the Pin#D6 of UCP300 =
2.9V ?
No
Check the UCP300
(if it has some problem, it is to be replaced.)
Yes
Is the RST Pin#P5 of
UCP300 "Low → High" ?
No
Check the UCP300
(if it has some problem, it is to be replaced.)
Yes
There is 32.768kHz wave -
forms at the C345 and C346
of OSC300
No
Check the UCP300
Yes
Is the SIM _ RST Pin #B5 of
UCP300 is "High" ?
No
Check the UCP300
Yes
The voltage is "High" at the
C300,C301,C302,C303
No
Check the UCP300
Yes
No
LCD display is O.K
Check the LCD part
Yes
No
Sound is O.K
Check the AUDIO part
Yes
END
10-3
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Flow Chart of Troubleshooting
VSYN_2.8V
VRF_2.9V
B6
SIM_CLK
SIM_CLK
E6
SIM_IO
SIM_RST
SIM_IO
SIM_RST
B5
N5
SIM1_CLK
SIM1_DATA
SIM1_RST
UP_CLK
L6
UP_IO
UP_RST
M6
E3
VRFLDO_1
F3
VRFLDO_2
F2
C307
VREF
C306
C308
P1
CNTL_DAT_CSP
CNTL_DAT_CSP
N9
CNTL_EN_CSP
CNTL_EN_CSP
D10
HV_CHRG
V_BATT
G5
AFC
N7
AINT
AINT
BATKELV
B11
F1
CREF
L9
DINT
DINT
C309
B12
FBSW
B13
LX
DCDC_OUT
L300
D3
NC1
PSW1_BUF
L10
PSW1_BUF
C310
RTC_CLK
R3
RTC_CLK
P3
SCUSTB
GND_SW
SCUSTB
C9
VACC
A12
VEXT
VRTC
F5
C5
VSIM
VSIM
SCAN
N4
K7
C311
SCANTST
C313
RING_DRV
E8
E9
MOTOR_EN
VIB_RNG_EN
VIB_DRV
L7
VIB_RNG_EN
N6
SYSCLK
CLK26M_ABB
CLK_REQ_ABB
SYSCLKEN
R6
RESETN
R4
FLASH_RST
RST
RESET_O
P5
G4
X1RTC
G3
X2RTC
VAMICREF
K13
VAMICREF
K10
VAMICRTN
K12
VAREF
J11
V_BATT
VAREFRTN
L14
C317
VAVCM
VAVCMLSH
F13
K11
VAVCMRTN
C318
C345
M10
UP_CS
UP_SCLK
UP_SDI
UP_SDO
C346
CSN_PSC
SCLK_PSC
P10
R10
V_BATT
SDI_PSC
M9
SDO_PSC
L301
B10
VBAT
C6
VBAT12
E13
OSC300
VBATAUD
E11
VBATAUX
E2
VBATRF
VBATSW
A14
NC
1
2
NC
C323
C324
C319
C320
C321
C322
GND_SW
L301
C310
C318
C3
C30
L300
C332
C331
C311
C313
TH300
R306
R331
R303
C308
C340
C305
C307
C306
C320
C323
C309
C346
C345
C315
C301
10-4
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345737920.089.png 345737920.090.png 345737920.091.png 345737920.092.png 345737920.093.png 345737920.094.png
Flow Chart of Troubleshooting
10-1-3. Sim Part
"Insert SIM is displayed on the LCD
Yes
Check the SIM connector's
(SIM600) connection to
SIM card
No
Resolder or change SIM600
Yes
Check the voltage at Pin#1
of SIM600 >= 2.9V ?
No
Check the UCP300
Yes
No
Is there any signals
Pin#13,#15,#16 of SIM600 ?
Check the UCP300
Yes
Check the SIM Card
END
C636
C635
C634
SIM600
VSIM
SIM_RST
SIM_CLK
11
6 6
2
33
5
5
SIM600
4 4
SIM_IO
7 7
8
12 12
8
99
11
11
C632
C633 C634
C635
G
G
15
G
10 10
C636
16
14
10-5
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This Document can not be used without Samsung's authorization
2
G
13
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