Page 1
3. Flow Chart of Troubleshooting
3-1. Baseband
3-1-1. Power ON
'Power ON' Does not work
Check the current consumption
Current consumption
≥
100mA ?
YES
Check the V bat. voltage
Voltage≥3.3V ?
YES
Check the pins of UCP101
C232≥1.6V ?
YES
C213=2.9v, C214 = 2.9V?
NO
NO
NO
NO
Down load again
Charge the Battery
Check U205 and C232
YES
Checktheclocksignal
at pin #19 of UCD600
Freq.=13MHz,Vrms≥480mV
YES
Check the Initial operation
END
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HPEIO=1.8V?
YES
3-1
NO
NO
Check UCP201 and C217
Checktheclockgeneration
circuit (OSC600)
Page 2
Flow Chart of Troubleshooting
R217
VBAT
8
0
6
L
VBAT
C235
6
IN
5
GND
4
_SHDN
U205
LX
GND
OUT
VCCD_1.6VCORE_1.5
1
L201
D201
VCCD_1.8
2
3
C232
C236
GSM74137_OUT
DCS74137_OUT
TX_EN
VPC
RX_EN
TX_FB
VAPC
RTX_QP
RTX_QN
RTX_IN
RTX_IP
R601
9
0
1
3
4
4
B
B
D
L
H
N
X
X
G
T
A
N
E
X
R
2
3
1
1
T
UCD600
N
I
4
F
C
C
P
R
A
C
X
V
T
V
5
4
1
1
1
VCC1
2
TXENA
3
VPC
4
850LNA_N
5
850LNA_P
6
900LNA_N
7
900LNA_P
8
1800LNA_N
9
1800LNA_P
10
1900LNA_N
11
1900LNA_P
4
8
3
P
Q
_
X
T
|
P
Q
P
P
M
O
C
6
1
3
7
6
5
3
3
3
3
3
A
P
N
M
M
I
I
N
O
_
Q
_
E
_
X
M
X
T
X
G
T
|
O
I
|
T
L
|
P
D
I
M
I
V
M
Q
F
U
B
X
|
Z
H
M
6
2
_
J
N
E
Z
D
P
N
H
A
M
U
F
M
O
T
P
3
X
C
L
1
0
8
9
7
2
1
1
1
R605
2
3
3
C
C
V
CHIPENA
SXENA
LATCHENABLE
DATAIN
VCC2
XTAL
NC
NC
NC
NC
CLK
MOD_SEL
31
30
29
28
27
26
25
24
23
22
21
R604
C607
C610
C608
C605
SAT_DET
AFC
XOENA
SX_EN
SERCLK
SERLE
SERDAT
C606
VRF_2.9
R603
OSC600
2
4
D
N
G
T
3
O
H
T
1
O
H
1
2
D
N
G
R602
CLK13M_OUT
C617C616
R606
C615
C618
3-2
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Page 3
Flow Chart of Troubleshooting
DSP_DB(0:15)
DSP_AB(0:8)
DSP_IO
DSP_RWN
FLASH_RESET
BAND_SEL
MOD_SEL
TX_EN
XOENA
SX_EN
PAC_EN
RX_EN
SERLE
SERDAT
SERCLK
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)
DSP_DB(15)
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)
FLASH_RESET
RTX_IP
RTX_IN
RTX_QP
RTX_QN
3
1
P
V
D
N
G
P
G
E
R
V
3
1
M
VCCA_2.9
1
1
L
V
D
D
V
N
G
E
R
V
4
1
R
C226
VCCD_1.8
VCCD_2.9
C202
C237
0
1
1
5
5
1
2
6
6
4
6
4
N
J
N
A
P
R
K
M
G
F
2
4
3
2
1
B
B
D
D
S
S
S
S
O
D
D
D
D
I
S
S
S
S
N
D
_
D
N
V
V
V
V
V
V
D
G
G
D
V
4
X
K
Q
U
L
A
A
C
K
I
O
N
R
_
N
_
C
I
A
D
4
R
T
D
D
R
E
C
I
I
I
C
N
C
A
T
A
I
A
D
O
A
M
D
R
D
D
D
X
5
6
4
3
6
6
4
1
L
P
P
P
R
N
D
M
K
C
Q
2
A
M
3
_
N
K
E
M
L
3
O
C
1
X
K
L
C
0
3
5
5
1
3
1
6
1
1
8
1
1
3
B
C
K
E
B
J
F
N
M
1
7
2
1
2
1
3
R
Q
6
C
D
D
C
D
O
U
D
I
D
S
S
D
D
D
_
C
N
D
P
P
V
V
V
D
H
G
_
_
V
_
D
D
D
D
V
N
N
N
G
G
G
LED2_DRV
LED1_DRV
RING_DRV
CSN_PSC
SCLK_PSC
SDO_PSC
CH_BDRV
ADC_AUX2
ADC_AUX1
N
N
E
P
F
2
1
_
E
U
RTC_ALMN
O
G
W
W
E
B
_
S
S
K
N
_
T
_
_
_
E
Q
1
R
E
R
R
R
_
D
R
S
W
T
B
O
E
W
W
W
S
I
N
P
P
P
P
V
R
M
I
4
5
9
7
9
9
0
0
1
1
L
L
1
1
K
M
L
C
C
N
T
F
N
N
N
U
O
O
I
B
_
_
_
_
R
G
P
I
1
S
J
W
W
D
VR201
P
S
P
C203
5
D
D
VDD34
V
VDD12
UP_CLK
UP_RST
UP_IO
SIM_IO
SIM_RST
SIM_CLK
VIB_DRV
VLDO_7
VLDO_6
VL5S_B
VL5S_A
VLDO_5
VL4S_B
VL4S_A
VLDO_4
VLDO_3
VLDO_2
VLDO_1
SDI_PSC
CH_ISEN
CH_RES
VBAT
C238
C11
J13
N9
R10
P10
J11
K11
K14
K12
VSIM
H11
VRTC
G12
G13
F13
F15
C12
A14
C9
D10
B10
B11
A12
B12
A13
J12
G11
F14
VACC
K8
L8
N7
M7
E14
VEXT
E13
VBAT
E11
F12
D14
D15
E10
A10
VREF
E9
CREF
H10
R210
9
0
2
C
SIMCLK
SIMRST
SIMDATA
C239
KEY_BL
DCS_TX_EN
GSM_TX_EN
UP_CS
UP_SCLK
UP_SDO
UP_SDI
VBAT
ICHRG
R209
C224
4.7K
22nF
6.3V
INTRQ
PWR_KEEP
RST
RTCALARM
SIM_IO
SIM_RST
SIM_CLK
VSIM
VCCB_2.9
VCCD_1.8
VCCA_2.9
VCCD_2.9
VRF_2.9
C212
C215
VBAT
C217
C216
C220
R207
C213
VCCB_2.9
TH201
R208
VRTC_1.5
R202
VCORE_1.5
C214
C218
C221
S
O
1
P
BAT201
G
E
N
2
TS414R IV02E
C211
VCCD_2.9
C201
0
0
0
9
8
7
1
1
9
7
8
J
J
K
1
2
H
H
H
J
J
6
7
5
6
2
1
3
4
0
5
1
1
1
1
1
1
1
1
C
C
S
S
S
S
S
S
S
S
N
N
D
D
D
D
D
D
D
D
N
N
N
N
N
N
N
N
G
G
G
G
G
G
G
E3
E2
F3
F2
F1
F4
J6
J5
K3
K2
K1
K5
K7
L5
P1
K6
L3
L2
E6
F5
E5
A4
B3
A3
B1
A2
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
AB8
AB7
AB6
AB5
AB4
AB3
AB2
AB1
AB0
I|O
RWN
RESETN_CSP
OCTL0
OCTL1
OCTL2
OCTL3
OCTL4
OCTL5
OCTL6
OCTL7
SERLE1
SERLE2
SERDA
SERCK
G
N
P
1
2
P
N
F
F
I
I
Q
Q
E
E
X
X
X
X
R
R
T
T
T
T
C
P
A
A
X
X
X
X
F
X
R
R
A
T
R
R
R
R
6
5
9
6
7
7
6
7
B
B
E
D
D
D
C
C
C225
D2
D3
G4
G3
H5
M1
M2
N2
N1
R3
C5
G6
C1
C2
AFC
VAPC
3
0
9
8
7
1
1
6
H
G
G
G
8
7
9
S
S
S
D
D
D
N
N
N
G
G
G
4
4
1
8
9
7
D
C
F
G
F
F
F
B
3
6
S
D
N
G
L
5
4
2
3
1
L
T
T
S
S
S
S
S
C
C
C
D
D
D
D
D
D
A
O
N
N
N
N
N
O
_
_
_
G
G
G
G
G
X
D
D
U
D
N
A
V
G
UCP201
P
N
N
P
T
P
N
P
A
B
A
T
T
T
U
U
U
O
O
O
A
A
A
1
2
2
1
1
1
P
N
R
P
N
A
A
T
T
U
U
O
O
A
A
T
N
T
T
N
P
U
U
P
N
B
T
U
O
A
2
1
P
P
B
T
U
O
A
M
U
U
N
N
N
N
O
O
I
I
C
I
I
O
O
X
X
X
X
V
C
C
C
C
I
I
I
I
U
U
U
U
X
A
A
A
A
M
M
M
M
V
3
3
5
4
4
4
5
5
3
1
1
1
1
1
1
1
1
1
L
L
K
P
N
N
R
M
M
P
P
P
P
N
N
N
N
N
T
T
T
T
B
N
N
N
N
I
I
I
I
T
U
U
U
U
X
X
C
C
I
I
U
O
O
O
O
U
U
X
M
O
X
C
M
C
A
A
I
I
U
A
U
M
M
A
A
3-3
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Page 4
Flow Chart of Troubleshooting
3-4
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Page 5
3-1-2. Initial
Flow Chart of Troubleshooting
Initial Failure
The voltage at the C217=1.8V?
YES
ThevoltageattheR121
(the pin #k9 of UCP201)
"Low -> High" ?
YES
There is 32.768KHz wave
form at the C126, C128 ?
YES
The voltage at the
C214=2.9V?
NO
NO
NO
NO
Check the UCP201
(If it has some problem,
it has to be replaced.)
Check the UCP201,R121
(If it has some problem,
it has to be replaced.)
Check the OSC101
Check the UCP201
YES
LCD Display OK ?
YES
Sound operation OK ?
YES
END
3-5
NO
NO
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This Document can not be used without Samsung's authorization
Check the LCD part
Check the Audio part
Page 6
Flow Chart of Troubleshooting
0
1
2
D
K
M
L
C
C
_
_
I
I
0
1
C
C
1
1
8
9
D
D
D
D
R
R
B
B
Y
Y
E
E
K
K
3
6
H
G
M
M
_
_
R
R
8
8
B
B
0
3
Y
Y
O
O
E
E
I
I
K
K
P
P
2
3
4
5
1
1
H
G
J
J
3
T
T
T
T
A
A
A
A
D
D
D
D
_
_
_
_
I
I
I
I
C
C
C
C
M
M
M
M
_
_
_
_
1
2
3
4
2
2
2
2
O
O
O
O
I
I
I
I
P
P
P
P
2
3
1
K
4
3
5
1
1
1
1
L
L
L
L
UCP101
N
N
N
E
E
E
_
_
_
0
D
T
T
M
A
A
C
D
D
_
_
I
I
C
C
M
M
_
_
9
0
3
4
O
O
I
I
P
P
4
1
M
N
_
I
C
M
_
3
4
O
I
P
4
1
N
T
M
U
R
A
O
L
2
C
C
3
A
T
T
C
C
R
R
S
T
2
1
X
R
X
O
9
9
7
6
1
1
1
1
F
H
H
G
W2
D_A1
V1
D_A0
V16
TEST3
T14
TEST2
U15
TEST1
IRQ4
IRQ3
IRQ2
IRQ1
PIO47
PIO34
PIO33
T17
T13
L5
M4
K12
P12
P16
P18
P17
M19
M16
J16
R14
U18
CHG_OFF
EAR_SWITCH
CHG_DET
VBT_EN
EAR_SEL
AMP_EN
LCD_DIM
CPTSTSTOP_CKO
ATDO_PWM2
ATDI_RTS1
ATCK_CTS1
ATMS_PIO45
PIO31_IRQ6
PIO00_IRQ5
Q
E
P
R
E
K
E
L
6
K
C
4
R
S
O
I
W
Y
P
P
S
_
_
_
1
9
1
O
I
P
5
1
P
5
0
0
2
1
2
M
O
O
O
I
I
W
I
P
P
P
P
9
7
5
9
1
1
1
G
V
V
P
2
6
7
8
3
2
2
2
O
O
O
O
I
I
I
I
P
P
P
P
3
6
9
7
1
1
1
1
R
U
U
W
OSC101
C128
XOENAQ
PWR_KEEP
CLK32K
RTCALARM
C126
MCI_DAT0_EN
MCI_DAT_EN
MCI_CMD_EN
MCI_DAT0
MCI_CMD
MCI_CLK
R121
TR_RSTRST
3-6
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
VR101
Page 7
Flow Chart of Troubleshooting
3-7
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This Document can not be used without Samsung's authorization
Page 8
Flow Chart of Troubleshooting
3-1-3. Sim Part
"Insert SIM" is displayed on the LCD
Check the SIM connector's
(CD201)connection to SIM card?
YES
Check the voltage at Pin
#11 of CN201 >=2.8V
YES
IS there any signals Pin
#13,#15,#16
NO
Resolder or change CD201
NO
Check the UCP 201
NO
Check the UCP 201
YES
Check the SIM Card
YES
END
3-8
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Page 9
SD_DAT3
SD_CMD
SD_CLK
SD_DAT0
Flow Chart of Troubleshooting
T_FLASH_2.8
CD201
1
SW-B
2
SW-A
3
1
4
2
5
3
6
4
7
5
8
6
9
7
10
8
11
VSIM
SIM_RST
SIM_CLK
SIM_IO
G
8
.
6
B
S
R
G
8
.
6
B
S
R
G
8
.
6
B
S
R
ZD202ZD201
ZD203
G
8
.
6
B
S
R
ZD204
C208C207
C205
C206
C204
C1
12
C5
13
C2
14
C6
15
C3
16
C7
17
NC
18
NC
19
NC
20
NC
21
NC
22
NC
23
NC
3-9
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Page 10
Flow Chart of Troubleshooting
3-1-4. Microphone Part
Micro-phone does not work
YES
Is the assembled status of
Microphone O.K?
YES
Check the DC bias voltage on
Mic path.
The voltage of
C212=2.9?
YES
Is microphone OK?
YES
NO
NO
NO
Reassemble the microphone
Solder again or Replace
R302,R303,R305,R307,R308,
R310,R311,R343,C304,C309
Check the UCP201
END
3-10
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Page 11
MICOUTP
R303
C304R305
VCCA_2.9
3
4
3
R
R302
Flow Chart of Troubleshooting
C302
MICINP
MICINN
MICOUTN
R310
R307 C309
C308
R311
C314
MIC301
C313
3-11
SAMSUNG Proprietary-Contents may change without notice
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Page 12
Flow Chart of Troubleshooting
3-1-5. Receiver Part
There is no sound from the Receiver
YES
Is the terminal of Receiver O.K?
IS there any signals at the
Pin #P11,#N12 of UCP201?
3-1-6. Speaker Part
There is no sound from the Speaker
YES
YES
END
Is the terminal
of Speaker O.K?
YES
NO
NO
NO
Replace the Receiver(same
Speaker)
Check UPC201,
R312,R313
Replace the Speaker
IS there any signals at the
Pin #P14#P15 of UCD301?
YES
IS there any signals at the
L301 , L302?
YES
IS there any signals at the
Pin #4, #16 of U301?
YES
END
3-12
NO
NO
NO
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Check UCD 301
Check U302
Check U301
Page 13
VBAT
Flow Chart of Troubleshooting
AMP_IN_N
AMP_IN_P
AMP_OUT_P
AOUTAP
AMP_OUT_N
C312
C310
SPK+
AMP_EN
SPK-
AOUTAN
R313
AMP_EN
R309
R308
C343
R312
R315
R316
C301
R314
1
2
3
4
1S2
1-2IN
2S1
D2
C344
19 NC
1
2
3
4
C315
8
1
2
C
N
NC18
VREF
VIM
VIP
EN
7
1
1
C
N
17
5
16
D
N
G
S
S
V
6
1
1
D
U301
2
S
2
5
U302
6
D
D
V
S
S
V
78
VBAT
5
1
1
S
1
D
N
G
6
13
1415
D
D
D
D
D
D
V
V
V
12
VOM
11
VSS
10
VSS
9
VOP
D
D
D
D
V
V
C316
L302
L301
C306
AMP_OUT_N
AMP_OUT_P
C311
C307
AOUTBN_SW
4
3
1
1
2
C
S
C
4
V
1
S
3
7
4S1
3-4IN
3S2
3
D
8
D4
2
1
1
1
0
1
9
C341
C340
EAR_L
EAR_IN_N
EAR_SEL
AOUTBP_SW
EAR_R
EAR_IN_P
3-13
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Page 14
Flow Chart of Troubleshooting
VCCD_1.8
P
P
N
_
_
N
N
I
I
_
_
R
R
A
A
E
E
N
_
_
N
N
I
I
_
_
P
P
M
M
A
A
CODEC_3.3V
WM_LRC
WM_DACDAT
WM_BCLK
CLK13M_WM
R329
R324
C342
WM_SCLK
WM_SDIN
WM_CSB
R342
R341
C330
7
6
5
4
3
2
1
29
DACLRC
DACDAT
BCLK
DGND
DBVDD
DCVDD
MCLK
NC
31
C324
L300
C325
C326
C327
C328
108
12
11
9
3
T
D
T
U
N
U
O
G
O
L
O
L
N
P
O
M
UCD301
K
N
L
I
C
D
C
C
S
S
N
N
28
27
30
26
14
13
1
1
D
T
U
O
R
B
S
C
2
T
T
N
U
U
G
O
P
O
L
25
LOUT2
H
R
15
HPVDD
16
AVDD
17
AGND
18
VREF
19
VMID
20
MONOIN-
21
+
L
N
R
I
N
N
I
O
I
E
E
E
D
O
M
24
N
N
N
O
I
I
L
L
M
22
23
AOUTBN_SW
AOUTBP_SW
AOUTBN
AOUTBP
R336
VCCD_1.8
R340
R334
R335
6.3V
6.3V
C331
C332
3-14
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Page 15
3-1-7. Camera Part
Camera function does not work
Flow Chart of Troubleshooting
Check the connect HDC401?
YES
C411 = 1.8V?
YES
C413 = 2.9V?
YES
Pin#1 of OSC401 is 24MHz?
YES
NO
NO
NO
NO
Connect the HDC401
Check the UCP201
Check the UCP201
Replace OSC401
Pin#2ofU411ishigh?
YES
Is there signal at the R404?
END
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NO
NO
Check or Replace
U402
3-15
Page 16
Flow Chart of Troubleshooting
VCCD_2.9
VCCD_1.8
LCD_DATA(0:15)
C410
C411
C409 C412
C413
D(0:15)
WALK_EN
C407
C408
LCD_DATA(0)
LCD_DATA(1)
LCD_DATA(2)
LCD_DATA(3)
LCD_DATA(4)
LCD_DATA(5)
LCD_DATA(6)
LCD_DATA(7)
LCD_DATA(8)
LCD_DATA(9)
LCD_DATA(10)
LCD_DATA(11)
LCD_DATA(12)
LCD_DATA(13)
LCD_DATA(14)
LCD_DATA(15)
D(0)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
D(8)
D(9)
D(10)
D(11)
D(12)
D(13)
D(14)
D(15)
0
1
4
R
C1
A6
C6
F4
J8
F3
A2
D6
H7
H4
J5
J6
J2
H3
J1
G2
E3
H2
H1
F2
G1
E2
D3
D2
F1
H6
G4
C9
D7
D8
D9
E7
E8
F6
F7
F5
F8
F9
G9
G8
G7
H9
G6
C7
B6
U402
AVDD
STROBE/GPIO2
CVDD
PWMA/GPIO4
CVDD
CVDD
CVDD
LVDD
SVDD
MVDD
RVDD
LD0
LD1
LD2
LD3
LD4
LD5
LD6
LD7
LD8
LD9
LD10
LD11
LD12
LD13
LD14
LD15
LD16
LD17
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
MD16[GPIO0]
MD17[GPIO1]
GPIO3
MA0
MA1
LCS1
LCS2
CLKI
CLKO
HREF
LRS
MCS
MINT
PCLK
RESET
SCL
SDA
SMCKO
VSYNC
MREN
MWEN
LWEN
LREN
DVSS
DVSS
DVSS
DVSS
AVSS
B7
A8
A7
A5
DI0
B5
DI1
A4
DI2
C5
DI3
D5
DI4
B4
DI5
A3
DI6
C4
DI7
B9
C8
H5
J3
D1
E1
C3
J7
E9
J9
B3
A9
B2
A1
B1
D4
H8
G5
J4
G3
B8
E4
E5
E6
C2
1
NC
2
NC
R404
A(2)
MV_CS
MV_INT
C404
CAM_D(0)
CAM_D(1)
CAM_D(2)
CAM_D(3)
CAM_D(4)
CAM_D(5)
CAM_D(6)
CAM_D(7)
R406
CAM_RESET_1.8
CAMPWR_EN
WALK_RESET
CAM_D(0:7)
A(1)
A(2)
MLCD_CS
SLCD_CS
CAM_HSYNC
LCD_RS
MV_CS
MV_INT
CAM_PCLK
TR_RST
CAM_SCL
CAM_SDA
CAM_MCLK
CAM_VSYNC
CP_OEN
CP_WEN
LCD_WR
C405
R407
C406
R405
OSC401
43
1
2
3-16
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Page 17
3-1-8. Mp3 Display Part
There is no MP3 sound from Earphone
Flow Chart of Troubleshooting
Are there any signal
at the pin #5,7 of IFC301?
NO
Are there any signal
at the pin #7,11 of U301?
NO
C330 = 1.8V ?
YES
L300 = 3.3V ?
YES
Is there clock at the
R329 ?
YES
YES
YES
NO
NO
Replace the Earphone
Check or Replace U301,C340,C341
Check & Replace UCP201
NO
Check & Replace U604
Check & Replace UCP101
Check the UCD301
END
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3-17
Page 18
Flow Chart of Troubleshooting
EAR_MIC_P
EAR_MIC_N
EAR_R
EAR_L
EAR_SWITCH
JACK_INT
SDS_TXD
SDS_RXD
JIG_ON_IF
USB_D+
USB_D-
R337
R338
R339
USB_5V
C336
VBAT
3
0
3
D
Z
VCCD_1.8
R331
6
5
4
1
0
3
D
Z
2
1
3
7
8
6
5
4
2
0
3
D
Z
2
1
3
7
8
C335
VR301
C337
C339
C334
VEXT_5V
C333
IFC301
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
NC
22
NC
23
NC
24
NC
25
NC5
26
NC6
3-18
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Page 19
Flow Chart of Troubleshooting
3-19
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Page 20
Flow Chart of Troubleshooting
3-1-9. Pedometer Part
pedometer does not work
YES
The voltage at the C125=2.8V?
YES
IS there any pulse at the Pin
#P32 of U106?
YES
IS there any pulse at the
C129,C130,C131 ?
YES
pedometer count OK?
YES
END
NO
NO
NO
Resolder or change
U103.
Resolder or change
U106.
Resolder or change
U105.
3-20
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Page 21
WALK_2.8
V_SENSOR
R113
C123
MOSI
MISO
SCK
C124
Flow Chart of Troubleshooting
WALK_2.8
U106
4
VCC1
6
VCC2
18
AVCC
30
PD0
31
PD1
32
PD2
1
PD3
2
PD4
9
PD5
10
PD6
11
PD7
12
PB0
13
PB1
14
PB2
15
PB3
16
PB4
17
PB5
7
PB6
8
3
3
5
1
1
C
1
R
PB7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
AREF
ADC6
ADC7
GND1
GND2
GND3
GND4
23
24
25
26
27
28
29
WALK_RESET
20
19
22
3
5
21
33
X_OUT
Y_OUT
Z_OUT
WALK_SDATA
WALK_SCK
C132
R120
WALK_RST
V_SENSOR
X_OUT
Y_OUT
Z_OUT
C129
U105
S0
S1
ST
PS
14
13
12
11
10
9
8
C130 C131
1
DNC
2
DNC2
3
VDD
4
GND
5
XOUT
6
ZOUT
7
YOUT
DNC4
DNC3
VMUX
GND
15
3-21
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V_SENSOR
Page 22
Flow Chart of Troubleshooting
WALK_EN
6
5
4
U103
CE
GND
NC
VDD
GND
VOUT
1
2
3
C127
VBAT
WALK_2.8
C125
3-22
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Page 23
3-2.RF
3-2-1. EGSM RX
Continuous RX ON
RF Input : 62 CH
AMP : -50dBm
Flow Chart of Troubleshooting
NORMAL CONDITION
Catch the channel ?
YES
F600 Check
Pin #6≥-65dBm ?
YES
F600 Check
Pin #12,13≥-65dBm ?
YES
UCD600 Check
Pin#6, 7≥-65dBm ?
YES
UCD600 Check
Pin#34(C214) =2.9V?
YES
NO
NO
NO
NO
NO
Check soldered status of
Resoer or Change
F600 Resolder or Change
Check soldered status of
C602
C601 , L600
L602, L603, C609
UCP201
Change or resolder
UCD600 Check
Pin#21 :26MHz?
Vp_p 1.1 v ?
UCD600
Pin 35,36,37,38
Vp_p : 100mV ?
YES
UCD 600
Resolder or change
NO
OSC 600
Change or resolder
NO
Check UCP201
Cange or resolder
3-23
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Page 24
Flow Chart of Troubleshooting
3-2-2. DCS RX
Continuous RX ON
RF Input : 62 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
F600 Check
Pin #6≥-65dBm ?
YES
F600 Check
Pin #10,11≥-65dBm ?
YES
UCD600 Check
Pin#8,9≥-65dBm ?
YES
UCD600 Check
Pin#34(C214) =2.9V?
YES
NO
NO
NO
NO
NO
Check soldered status of
R618
Resoer or Change
C601 , L600
F600 Resolder or Change
Check soldered status of
L605 , U607
UCP201
Change or resolder
UCD600 Check
Pin#21 :26MHz?
Vp_p 1.1 v ?
UCD600
Pin 35,36,37,38
Vp_p : 100mV ?
YES
UCD 600
Resolder or change
NO
NO
OSC 600
Change or resolder
Check UCP201
Cange or resolder
3-24
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This Document can not be used without Samsung's authorization
Page 25
Flow Chart of Troubleshooting
3-25
SAMSUNG Proprietary-Contents may change without notice
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Page 26
Flow Chart of Troubleshooting
3-2-3. PCS RX
Continuous RX ON
RF Input : 62 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
F600 Check
Pin #6≥-65dBm ?
YES
F600 Check
Pin #12,13≥-65dBm ?
YES
UCD600 Check
Pin#10,11≥-65dBm?
YES
UCD600 check
Pin#34(C214)= 2.9V?
YES
NO
NO
NO
NO
NO
Check soldered status of
C602
Resoer or Change
C601 , L600
F600 Resolder or Change
Check soldered status of
L606 , L607
UCP201
Change or resolder
UCD600 Check
Pin#21 :26MHz?
Vp_p 1.1 v ?
UCD600
Pin 35,36,37,38
Vp_p : 100mV ?
YES
UCD 600
Resolder or change
NO
OSC 600
Change or resolder
NO
Check UCP201
Cange or resolder
3-26
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Page 27
Flow Chart of Troubleshooting
3-27
SAMSUNG Proprietary-Contents may change without notice
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Page 28
Flow Chart of Troubleshooting
3-2-4. EGSM TX
Continuous TX ON condition
TX Power DAC : 600 code Applied
CH : 62
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF. Level : 10dBm
ATT. : 20dB
PAM600 Pin 12
About 32 dBm?
YES
F600 ,RFS601
R613,c601,L600
Check & Change
NO
NO
F600
Pin#4 = 2.8V?
YES
PAM600
Pin#4,5:VBAT?
YES
PAM600 pin #7
about 5dBm ?
YES
PAM600
Pin #1 :2.9V ?
YES
PAM600
Check & Change
NO
UCP201
Check & Change
NO
BATTERY
Check & change
NO
UCP201
check
UCP201 Pin
A13,C213 Check &
BATTERY Check
SAMSUNG Proprietary-Contents may change without notice
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NO
UCD600
Pin 34 : 2.9V ?
Pin 1,13,22,32
:VBAT ?
YES
UCD600
Pin 21 : 26 MHz?
YES
UCD600
Pin 35,36,37,38
100mV ?
YES
UCD600
Check or change
3-28
NO
NO
Check OSC600
UCP201
Check or change
Page 29
3-2-5. DCS // PCS TX
Flow Chart of Troubleshooting
Continuous TX ON condition
TX Power DAC : 520 code Applied
CH : 698 ch(DCS) , 650 ch(PCS)
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF. Level : 10dBm
ATT. : 20dB
PAM600 Pin 14
about 29dBm ?
YES
F600 ,RFS601
R613,c601,L600
Check & Change
NO
NO
F600
Pin#2 = 2.8 ?
YES
PAM600
Pin#4,5:VBAT?
YES
PAM600 pin #2
about 5dBm ?
YES
PAM600
Pin #1 :2.9V ?
YES
PAM600
Check & Change
NO
NO
NO
UCP201
Check & Change
Check & change
UCP201
check
BATTERY
NO
UCP201 Pin
A13,C213 Check &
BATTERY Check
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UCD600
Pin 34 : 2.9V ?
Pin 1,13,22,32
:VBAT ?
YES
UCD600
Pin 21 : 26 MHz?
YES
UCD600
Pin 35,36,37,38
100mV ?
YES
UCD600
Check or change
3-29
NO
NO
Check OSC600
UCP201
Check or change
Page 30
Flow Chart of Troubleshooting
3-30
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Page 31
GSM_TX_EN
DCS_TX_EN
GSM_OUT
DPCS_OUT
Flow Chart of Troubleshooting
VBAT
8
0
6
RX_EN
L
RTX_QP
RTX_QN
RTX_IN
R601
8
1
0
9
3
4
4
3
B
P
B
D
L
H
N
Q
X
X
_
G
T
T
X
T
|
1
P
Q
VCC1
2
TXENA
VPC
TX_FB
VAPC
3
VPC
4
850LNA_N
5
850LNA_P
6
UCD600
900LNA_N
7
900LNA_P
8
1800LNA_N
9
1800LNA_P
10
1900LNA_N
11
1900LNA_P
P
N
A
I
P
4
N
F
C
M
C
E
P
R
O
X
C
A
X
T
R
C
V
V
3
5
4
2
6
1
1
1
1
1
R605
C617C616
C618
RTX_IP
MOD_SEL
7
6
5
4
3
2
3
3
3
3
3
3
3
P
A
N
M
M
I
I
C
N
_
O
Q
_
E
C
_
X
X
M
V
T
X
G
T
|
I
O
|
T
L
|
P
D
I
M
31
I
V
M
Q
F
U
B
X
|
Z
H
M
6
2
_
J
N
E
Z
D
P
N
H
A
M
U
F
M
O
T
P
3
X
L
C
1
9
7
8
0
1
1
2
1
R606
LATCHENABLE
C607
C608
NC
30
NC
29
NC
28
NC
27
CHIPENA
26
SXENA
25
CLK
24
23
DATAIN
22
VCC2
21
XTAL
C610
R604
C615
SAT_DET
AFC
CLK13M_OUT
VRF_2.9
C606
C605
XOENA
SX_EN
SERCLK
SERLE
SERDAT
OSC600
2
T
1
4
D
O
N
H
G
1
T
3
2
D
O
N
H
G
R603
R602
RFS601
A23C1GND
GND
4
C601
L600
C604
F600
6
ANT
9
PCS_RX1
5G7GG14
PCS_RX2
DCS_RX1
DCS_RX2
EGSM_RX1
EGSM_RX2
8
11
10
13
12
C609
C611
C614
4
VC1
2
VC2
3
EGSM_TX
1
DCS/PCS_TX
C612
C613
C602
L601
L602
L603
U607
L605
L606
L607
ANT601
1
1
2
2
3
3
4
4
5
5
6
6
ANT602
1
2
3
4
5
6
ANT
1
2
3
4
5
6
C603
ground
GSM74137_OUT
DCS74137_OUT
TX_EN
VBAT
PAC_EN
DCS74137_OUT
BAND_SEL
VPC
GSM74137_OUT
SAT_DET
C619
PAM600
R610
R607
R608
C621
R609
R612
C624
TX_FB
R613
C625
CLK13M_TR
DPCS_OUT
GSM_OUT
GND
GND
GND
GND
GND
16
15
14
13
12
11
10
9
C622
C620
R611
R616
1
ENA
2
DCS|PCS_IN
3
BS
4
VSUP
5
VBATT
6
VPC
7
GSMIN
8
RSVD
COUP_OUT
DCS|PCS_OUT
GSM_OUT
GND
17
R617
C628
C629
C630
C631
CLK13M_OUT
VRF_2.9
U600
1
NC
2
A
3
GND
VCC
NC
6
5
4
Y
C623
R614
C626
R615
C627
3-31
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CLK13M_MC
CLK13M_WM
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