Page 1
9. Flow Chart of Troubleshooting
9-1.Baseband
9-1-1. Power ON
'Power On' does not work
Check the current consumption
Yes
Current consumption
>= 100mA
Yes
Check the Vbat Voltage
Voltage >=3.3V
Yes
Check the pin of U100
Pin#J12 >= 2.8V
Yes
Pin#A13 and
pin#A14 =2.8V
Yes
No
No
No
No
Download again
Charge the Battery
Check U100 and C110
pin#G11 =
1.5V
Yes
No
Check U100, U105 and U106
ChecktheclocksignalatC601
Freq = 26MHz
Vrms >=300mV
Vpp≒900mV
Yes
Check the initial operation
END
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No
Check the clock generation circuit
(related to 3pin of OSC600, C602, R601)
9-1
Page 2
Flow Chart of Troubleshooting
T
A
B
V
3
0
V
1
9
.
C
2
_
D
C
C
V
V
8
.
1
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2
D
0
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1
C
C
V
V
1
9
.
0
2
1
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C
A
C
C
V
V
9
.
2
_
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0
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1
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C
V
5
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1
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T
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5
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1
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1
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2
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9
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8
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1
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7
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D
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9
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2
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B
C
C
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1
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_
Y
E
K
A
T
4
0
1
C
1
C
0
3
1
B
8
E
5
1
B
1
K
5
F
1
1
3
J
3
M
6
N
5
N
J
4
5
G
4
K
2
R
6
P
1
N
1
0
1
M
6
A
F
6
L
1
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1
P
3
4
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4
B
3
1
D
F
7
F
8
F
9
F
0
1
7
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8
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9
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1
G
0
6
H
7
H
8
H
9
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7
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9
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0
1
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1
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5
1
:
0
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D
_
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D
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T
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K
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M
T
6
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M
M
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D
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D
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6
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7
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6
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3
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5
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6
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5
5
6
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6
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3
1
1
C
0
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1
1
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A
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1
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C
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A
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P
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M
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B
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T
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T
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T
Q
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T
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N
X
X
T
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P
X
X
R
F
E
1
R
A
R
F
E
2
R
A
R
P
X
T
2
1
C
A
F
A
K
E
E
L
L
D
C
R
R
R
R
E
E
E
E
S
S
S
S
1
2
2
1
A
B
C
C
T
E
K
L
L
A
R
C
D
E
R
R
S
E
E
S
S
V
T
A
B
V
L
9
1
0
L
9
M
1
0
N
K
9
L
7
1
5
C
1
4
C
P
3
5
P
R
6
D
1
N
4
6
M
L
6
P
4
R
4
1
4
R
1
3
M
1
3
R
1
3
L
1
3
K
1
4
L
1
5
M
1
5
P
1
5
N
1
4
M
1
4
N
1
2
P
1
2
R
1
2
N
1
1
P
C
6
C
7
D
6
D
7
B
6
B
5
E
7
D
9
F
_
U
S
B
1
P
W
_
N
R
O
W
P
N
O
J
_
I
G
T
I
N
S
_
D
P
C
M
K
3
_
M
L
1
C
Q
E
A
X
N
O
K
L
3
C
K
2
T
U
X
N
U
O
A
T
O
U
X
P
U
A
6
1
N
N
I
X
U
A
1
C
I
N
X
P
U
A
T
U
N
O
I
C
M
T
O
U
P
C
I
M
N
N
I
I
C
M
I
I
N
C
P
M
T
N
O
U
B
A
U
B
T
P
O
A
T
N
O
U
A
A
U
A
T
P
O
A
R
N
X
T
Q
T
R
P
X
Q
X
T
I
N
R
P
I
X
T
R
7
1
1
C
R
X
T
_
W
P
F
A
C
0
0
1
T
A
0
9-2
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Page 3
VCCD_2.9V
Flow Chart of Troubleshooting
VRF_2.9V
CLK13M_TR
CLK13M_MC
CLK13M_YMU
C600
C601
VBAT
2
C604
R600
R601
C602
C603
R602
1
1
0
1
F
RF_EN
RTXIP
RTXIN
RTXQP
RTXQN
SERDAT
SERLE
SERCLK
XOENA
9
XOUT
8
BIP
7
BIN
6
BQP
5
BQN
4
SDIO
3
_SEN
2
SCLK
1
C
C
N
N
3435
33
3
2
OSC600
10
11
12
13
T
N
D
P
_
D
O
I
E
D
V
S
V
E
R
_
U600
2
1
L
L
A
N
A
D
N
G
T
E
T
X
X
X
30
29
31
4
1
16
15
14
L
28
C606
H
D
O
N
O
F
F
G
R
R
RFIPP
17
RFIPN
18
RFIDP
19
RFIDN
20
RFIEP
21
RFIEN
22
RFIAP
23
RFIAN
E
24
V
D
I
D
C
O
D
D
F
X
V
27
M
A
X
2632
25
C608
C607
D
D
V
D
D
V
C605
R603
C609
GSM_PAM_IN
DPCS_PAM_IN
PCS_LNA_IN_P
PCS_LNA_IN_N
DCS_LNA_IN_P
DCS_LNA_IN_N
GSM_LNA_IN_P
GSM_LNA_IN_N
AFC
3
TA103
VLDO7_1.8V
R108
U105
1
VIN
2
GND
3
EN4FB
SW
VCCD_1.8V HP_CORE_1.57V
L100
5
C132
C131
VIN
2
GND
3
EN4FB
U106
SW
51
9-3
VLDO1_1.5V
L101
D100
C130
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Page 4
Flow Chart of Troubleshooting
9-1-2. Initial
Initial Failure
Yes
The pin #C12 of U100 =
1.8V and
the pin #J12 of U100 =
2.8V ?
Yes
Is the pin #K9 of U100
"Low→High" ?
Yes
There is 32.768kHz wave
forms at the C209 and
C210
Yes
Is the pin #3 of U105 &
U106 "High"?
No
No
No
No
(if it has some problem, it is to be replaced.)
(if it has some problem, it is to be replaced.)
Check the U105 & U106
Check the U100
Check the U100
Check the U200
Yes
The voltage is "High" at
the C111,C106
Yes
LCD display is O.K?
Yes
Sound is O.K?
Yes
END
No
Check the U100
No
Check the LCD part
No
Check the Audio part
9-4
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Page 5
D(0:15)
CP_WEN
CP_OEN
FLASH_RESET
ROM1_CS
ONENAND_CS
RAM_CS
LCDC_CS
YMU_CS
LOWER_BYTE
UPPER_BYTE
A(0:24)
Flow Chart of Troubleshooting
HP_CORE_1.57V
VLDO1_1.5V
R209R210
C200
C218
C217
2
1
0
1
8
7
1
2
1
1
1
8
9
1
8
8
1
1
2
F
1
2
U
C
C
_
N
N
A
S
A(0)
A(1)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
A(14)
A(15)
A(16)
A(17)
A(18)
A(19)
A(20)
A(21)
A(22)
A(23)
A(24)
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)
SIMCLK
SIMDATA
SIMRST
USB_SUSP
USB_DET
USB_VPO
USB_VMO
USB_OEN
USB_DATA
UP_SCLK
UP_SDO
UP_SDI
UP_CS
BT_CTS
BT_RXD
BT_TXD
BT_RTS
HOST_WAKE
SDS_TXD
SDS_RXD
KEY_COL(0:4)
PSW1_BUF
KEY_ROW(0:5)
B7
A_A0
C8
A_A1
D8
A_A2
A6
A_A3
C6
A_A4
C5
A_A5
D7
A_A6
E7
A_A7
C4
A_A8
C2
A_A9
A3
A_A10
B3
A_A11
B1
A_A12
D6
A_A13
D5
A_A14
D3
A_A15
E8
A_A16
F8
A_A17
E6
A_A18
D2
A_A19
E4
A_A20
E3
A_A21
F5
A_A22
F4
A_A23
F3
A_A24
F2
PIO35_A_A25_BOOTSEL
A8
A_D0
E9
A_D1
F9
A_D2
G10
A_D3
G11
A_D4
F11
A_D5
E11
A_D6
G12
A_D7
D11
A_D8
E12
A_D9
C12
A_D10
A12
A_D11
F12
A_D12
D12
A_D13
E13
A_D14
D13
A_D15
D14
A_WEN
B14
A_OEN
E14
PIO30_WAITN
H14
FLASHRSTN
A14
A_CS0N
C15
A_CS1N
G14
A_CS2N
J14
A_CS3N
D15
A_CS4N
C16
A_CS5N
F15
A_CS6N
B17
A_CS7N
H16
A_BE0N
A17
A_BE1N
T
S
R
M
I
S
K
_
L
4
O
I
C
1
O
M
M
I
I
I
P
S
S
5
4
2
T
P
P
KEY_COL(0)
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
KEY_COL(4)
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
KEY_ROW(4)
KEY_ROW(5)
S
V
P
S
I
P
U
V
S
_
_
B
B
S
S
U
U
_
_
9
7
0
0
O
O
I
I
P
P
9
9
1
1
C
B
7
1
1
1
M
M
L
M
M
L
M
R
F
D
U
_
_
A
A
S
D
S
D
V
V
I
O
P
M
V
V
_
_
B
B
S
S
U
U
_
_
2
1
1
1
O
O
I
I
P
P
7
8
1
1
D
C
J
K
T
7
8
5
4
3
6
2
0
1
D
1
1
1
1
1
1
1
1
1
_
S
S
S
S
S
S
S
S
S
A
S
S
S
S
S
S
S
S
S
D
V
V
V
V
V
V
V
V
V
D
V
A
O
T
N
E
A
M
V
D
O
D
_
_
_
2
3
S
0
0
B
B
B
2
1
I
O
S
S
S
O
0
_
I
I
0
U
U
U
0
0
O
P
P
I
_
_
_
D
_
K
D
0
_
P
3
7
6
0
X
0
L
X
S
_
3
3
1
R
T
F
R
R
C
O
O
O
O
S
T
I
P
P
I
I
I
P
P
S
S
P
P
P
S
D
D
R
S
6
3
6
7
4
2
4
2
3
3
1
1
1
T
P
P
R
U
N
R
F
E
E
HP_CORE_1.57V
C201 C206C204
C203C202
8
1
2
0
8
3
2
9
8
8
1
1
1
1
9
2
1
1
7
G
A
H
G
A
V
H
H
H
H
M
N
V
5
6
4
2
3
9
8
7
1
5
6
7
8
S
S
S
S
S
S
S
S
S
E
E
E
E
S
S
S
S
S
S
S
S
S
R
R
R
R
V
V
V
V
V
V
V
V
V
O
O
O
O
C
C
C
C
_
_
_
_
D
D
D
D
D
D
D
D
V
V
V
V
UCP200
X
X
T
R
4
9
4
A
A
4
2
8
8
0
D
D
2
2
2
3
O
0
1
O
O
I
I
I
R
R
D
D
Q
Q
D
D
I
I
P
P
P
_
_
R
R
R
R
R
R
_
_
_
I
I
1
2
0
B
B
B
B
0
0
_
_
4
4
D
Y
Y
1
0
Y
Y
S
S
1
0
O
O
E
E
T
X
C
X
E
E
T
I
I
X
X
P
K
K
P
C
R
D
R
K
K
R
T
T
6
4
5
7
6
5
1
7
6
2
7
6
3
1
J
J
1
J
J
L
N
N
K
M
M
M
R
R
VCCD_1.8V
C205
8
2
3
8
8
1
8
2
1
1
5
8
1
1
1
T
W
W
U
U
U
B
G
B
H
4
3
8
7
5
6
1
2
3
4
1
1
1
1
1
1
E
E
E
E
_
_
_
_
_
_
R
R
R
R
8
8
8
8
8
8
O
O
O
O
P
P
P
P
P
P
1
1
1
1
1
1
C
C
C
C
_
_
_
_
_
_
_
_
_
_
D
D
D
D
O
O
O
O
O
O
I
I
I
I
I
I
D
D
D
D
_
_
_
_
_
_
V
V
V
V
D
D
D
D
D
D
D
D
D
D
D
D
V
V
V
V
V
V
F
U
B
_
1
D
K
W
M
L
S
C
C
P
_
_
I
I
1
_
0
1
4
C
C
5
6
7
8
9
1
D
D
D
D
D
D
D
D
M
M
_
_
R
R
R
R
R
R
R
R
8
8
B
B
B
B
B
B
B
B
0
3
Y
Y
Y
Y
Y
Y
Y
Y
O
O
E
E
E
E
E
E
E
E
I
I
K
P
P
K
K
K
K
K
K
K
3
5
6
8
1
4
3
6
2
4
1
1
J
H
H
H
H
H
G
G
J
J
VRTC_1.5V
C208
C207
CLK13M_TR
TR_RST
2
4
5
8
8
4
6
2
6
1
9
1
1
4
1
F
D
L
D
P
L
9
8
7
0
2
1
_
_
_
1
1
1
8
8
8
_
_
_
8
8
8
P
P
P
1
1
1
P
P
P
_
_
_
1
1
1
_
_
_
O
O
O
I
I
I
O
O
O
_
_
I
I
I
_
_
_
_
D
D
D
D
D
D
D
D
D
D
D
D
V
V
V
V
V
V
N
N
E
E
_
_
0
3
2
1
D
T
T
T
T
T
M
A
A
A
A
A
D
C
D
D
D
D
_
_
_
_
_
_
I
I
I
I
I
I
C
C
C
C
C
C
M
M
M
M
M
M
_
_
_
_
_
_
0
9
3
1
2
4
4
3
2
2
2
2
O
O
O
O
O
O
I
I
I
I
I
I
P
P
P
P
P
P
4
4
4
3
5
3
2
1
1
1
1
1
1
1
L
L
L
L
N
K
M
F
C
2
1
1
1
1
1
1
1
6
1
4
1
G
C
B
W
C
B
B
B
G
W
R
I
6
5
4
3
2
1
S
N
C
N
K
_
_
_
_
_
_
T
T
T
M
8
8
8
8
8
8
C
S
S
R
T
P
P
P
P
P
P
E
V
R
1
1
1
1
1
1
T
R
_
_
_
_
_
_
O
O
O
O
O
O
I
I
I
I
I
I
_
_
_
_
_
_
D
D
D
D
D
D
D
D
D
D
V
V
V
V
V
N
E
_
0
T
A
D
N
_
I
M
T
C
R
U
M
A
O
_
L
2
C
C
3
3
A
T
T
4
C
C
R
R
O
S
T
I
2
1
P
O
X
R
X
6
7
9
9
1
1
1
1
F
H
H
G
L
E
S
_
T
U
O
_
O
I
D
U
A
OSC200
C210
D
D
V
Q
E
P
R
E
K
E
L
K
C
R
S
W
Y
P
S
_
_
9
0
1
2
O
O
I
I
P
P
9
5
1
1
P
P
SPTXD1_I2SD_PIO16
CPTSTSTOP_CKO
6
4
O
I
P
_
1
0
5
6
1
2
2
M
O
O
O
I
I
I
W
P
P
P
P
7
6
9
5
1
1
1
G
V
V
U
CKO_IACK
IOBIT1_PIO06
IOBIT0_PIO05
SPFS1_PIO15
SPRXD1_PIO17
SPCLK1_PIO18
ATDO_PWM2
ATDI_RTS1
ATCK_CTS1
ATMS_PIO45
PIO31_IRQ6
PIO00_IRQ5
8
7
2
2
2
3
O
O
O
I
I
I
P
P
P
7
9
3
1
1
1
U
R
W
C209
TDO
TCK
INT0
RWN
D_D15
D_D14
D_D13
D_D12
D_D11
D_D10
D_D9
D_D8
D_D7
D_D6
D_D5
D_D4
D_D3
D_D2
D_D1
D_D0
D_A8
D_A7
D_A6
D_A5
D_A4
D_A3
D_A2
D_A1
D_A0
TEST3
TEST2
TEST1
IRQ4
IRQ3
IRQ2
IRQ1
PIO47
PIO34
PIO33
TP213
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)
DSP_TMS
DSP_TDO
DSP_TDI
DSP_TCK
FLASH_EN1
SPK_SEL
PCM_SYNC
PCM_IN
PCM_OUT
PCM_CLK
DSP_INT
DSP_IO
DSP_RWN
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)
TP209
TP210
TP211
TP212
NAND_INT
HALL_SENSOR
LCDC_INT
YMU_IRQ
JACK_IN
INTRQ
M_HOLD
USB_CON
LED_DATA
DSP_DB(0:15)
DSP_AB(0:8)
R204
T12
V14
TDI
U14
N12
N11
V12
N15
N16
M17
M18
T15
W6
IO
V6
P11
N10
N9
N8
P9
P8
R9
T9
T8
U8
V8
R8
T7
R7
T6
U6
R6
N6
V4
T5
U4
V3
W3
W2
V1
V16
T14
U15
T17
T13
CP_TDO
CP_TDI
L5
M4
CP_TCK
CP_TMS
K12
P12
P16
P18
P17
M19
M16
J16
R14
U18
CHG_OFF
EAR_SWITCH
CHG_DET
EAR_SEL
AMP_EN
BT_WAKE
BRIGHTNESS
XOENAQ
PWR_KEEP
CLK32K
RTCALARM
9-5
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Page 6
Flow Chart of Troubleshooting
9-1-3. Sim Part
"Insert SIM is displayed on the LCD
Yes
Check the SIM
connector's (SIM111)
connection to SIM card
Yes
Check the voltage at
pin#1 of CN111 >=
2.8V ?
Yes
Is there any signals
pin#2,#3,#6 of CN111 ?
Yes
Check the SIM Card
END
No
No
No
Resolder or change SIM111
Check the U100
Check the UCP200
9-6
SAMSUNG Proprietary-Contents may change without notice
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Page 7
9-1-4. Microphone Part
Microphone does not work
Flow Chart of Troubleshooting
Yes
Is the assembled status
of microphone O.K?
Yes
Check the reference voltage on mic path
Yes
C101≒2.8V ?
Yes
Is microphone ok?
Yes
END
VCCA_2.9V
R411
No
No
No
Reassembled the microphone
Resolder or change
R411,R413,R414,R415,R416,R417,
C414,C415
Check U100
MICINP
MICOUTP
MICINN
MICOUTN
C414
C419
V400
R414
R416
TA404
R415
R417
C415
C420
C413
R412
R413
C416
C421
C417
VR402
9-7
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
C418
AK_MIC+
VR401
MAIN_MIC_P
MAIN_MIC_N
VR403
AK_MIC-
C422
VR404
Page 8
Flow Chart of Troubleshooting
9-1-5. Speaker Part_1(MP3, SPEAKER PHONE)
There is no sound from the Speaker
Check
UCD302
Are there any signals at
the terminal of Speaker?
No
Are there any signals at
the L300, L301
Are there any signals at
the R321, R322
MP3
Is there any
signals at the
C432, C433?
Yes
No
Whatisthetypeof
sound from the
Is there any
signals at the
C434, C435?
Yes
Yes
Yes
Speaker
MELODY
Yes
Replace the Speaker
The pin#10 of
U401 is "High"?
Check U303
No
Check
UCD301
Yes
SPEAKER PHONE
Is there any
signals at the
C436, C437?
No
Yes
Check UCP200
Check U401
NoNo
Check U100
The pin #2 of
U401 is
"High"?
No
Yes
Check U401
END
Check UCP200
9-8
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Page 9
YMU+
MP3_SPK+
AMP_IN+
C432
C434
R431
C406
Flow Chart of Troubleshooting
VBAT
C407
YMU-
MP3_SPK-
AMP_IN+
AMP_IN-
AMP_EN
C433
R319
C435
TA304
R328
R329
VBAT
R321
R322
C343
AOUTBP
SPK_SEL
AMP_IN-
AOUTBN
L302
C410
C436
C411
C437
R410
17
21
NC
22
NC
1
1S2
2
1-2IN
3
2S1
4
D2
14
1316
15
D
1
N
D
G
2
1
+
S
S
V
4
1
D4
U401
4S1
3-4IN
3S2
D
2
1
N
S
2
6
5
3
S
D
3
G
7
8
C408
12
11
10
9
R409
C409
AOUTAN
SPK-
MELODY-
AUDIO_OUT_SEL
AOUTAP
SPK+
MELODY+
C342
U303
A2
B1
VSS
VDD
A1
VIP
VIMC1
R331R330
TA305
VOM A3
B3PVSS
D
VOP
D
C3
V
P
N
C
C
E
N
N
2
1
2
2
C
B
R320
L300
L301
C335
MELODY-
MELODY+
C334
9-9
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Page 10
Flow Chart of Troubleshooting
9-1-6. Speaker Part_2(RECEIVER)
There is no sound from the Speaker
Is the terminal of Speaker
Are there any signals at
the PIN#8, #12 of U401
Are there any signals at
the PIN#9, #13 of U401
O.K ?
Yes
Yes
END
No
Replace the Speaker
No
Check U401
No
Check U100
9-10
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This Document can not be used without Samsung's authorization
Page 11
9-1-7. Charging Part
Abnormal charging part
What is the type
of Charging
TA Charging
Flow Chart of Troubleshooting
No
Check
IFC503
No
Check
UCP200
No
Check U102
The pin #1 of
U102 is
TA_VEXT뵃5V?
Yes
The pin #5 of
U102 is
"LOW"?
Yes
Charging Current
is 350mA~650mA?
Yes
Check The Battery
END
9-11
SAMSUNG Proprietary-Contents may change without notice
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Page 12
Flow Chart of Troubleshooting
EAR_MIC_P
EAR_MIC_N
IF_EAR_R
IF_EAR_L
EAR_SWITCH
JACK_IN
SDS_TXD
SDS_RXD
JIG_ON_IF
USB_D+
USB_D-
TA_VEXT
ICHRG
C136
TA100
R104
VCCD_1.8V
R500
C124
VBAT
USB_5V
TA_VEXT
IFC503
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
ZD504
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
25
NC
NC
22
26
NC
NC
27
23
NC
NC
28
24
NC
NC
R501
R502
R503
5
6
6
4
5
0
0
5
D
Z
2
3
1
7
8
4
1
0
5
D
Z
2
1
3
8
7
C542
VR514
R526
2
0
5
D
Z
TA501
3
0
5
D
Z
C543
VBAT
U102
1
VL
2
IN
3
GND
4
ISET
GG
10 11GG12
9
_CHG
BATT
_ACOK
_EN
8
7
6
5
CHG_OFF
R105
9-12
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Page 13
Flow Chart of Troubleshooting
9-2. RF
9-2-1. EGSM RX
NORMAL CONDITION
catch the channel?
Yes
PAM601 Check
Pin12≥-65dBm ?
Yes
PAM601 Check
Pin16≥-65dBm ?
Yes
U600 Check
Pin21,22≥-65dBm ?
Yes
U600 Check
Pin11,12,13,28,29 : 2.9V ?
No
No
No
No
No
ANT600, R604 contact?
RFS600,L603,L604,C619
C610, C611, C619, F600
U100 pin #A13, C109,#C4 ,C100
CHECK
resolder or change
PAM601
resolder or change
resolder or change
resolder or change
Yes
U600 Check
Pin30,31 : 26Mhz?
Vp-p : 950mV?
Yes
U600 Check
Pin4,5,6,7
Vp-p : 120mV?
Yes
U100 CHECK!!
No
No
OSC600
resolder or change
U600
resolder or change
9-13
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Page 14
Flow Chart of Troubleshooting
GSM_LNA_IN_N
GSM_LNA_IN_P
DCS_LNA_IN_N
DCS_LNA_IN_P
PCS_LNA_IN_N
PCS_LNA_IN_P
27NH
L601
8.2NH
C610
L600
C611
F600
3
OUT
1
4
OUT
IN
G2G
5
C616
L603
C612
C613
C614
L602
C615
F601
3
OUT
1
4
OUT
IN
G2G
5
F602
3
OUT
1
IN
4
OUT
G25G
C617
C618
0
2
1
X
R
GND5
21
GND4
19
GND3
17
GND2
15
GND1
13
N
I
S
C
T
T
P
|
A
S
B
C
V
D
1
8
1
2
X
R
PAM601
P
M
A
R
V
8
7
C619
4
6
2
1
1
1
4
3
T
X
X
N
R
R
A
VCC2
3
L605
VCC1
0
1
N
I
X
T
0
V1
2
0
N
9
|
E
0
_
5
D
2
1
8
O
S
S
X
M
T
B
B
M
S
V
V
V
V
G
6
5
4
9
1
1
C622
RFS600
A23C1GND
GND
4
L604
C620
L607
R604
C621
C623
ANT600
ANT
L606
ANT601
TP
U604
TP
DPCS_PAM_IN
VBAT
TX_PWR
TX_EN
TA600
R605
C625
C630
C629
C626
C627
C628
GSM_PAM_IN
VMOD_EN
BAND_SEL2
BAND_SEL1
9-14
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Page 15
Flow Chart of Troubleshooting
9-2-2. DCS RX
NORMAL CONDITION
catch the channel?
Yes
PAM601 Check
Pin1≥-65dBm ?
Yes
PAM601 Check
Pin16≥-65dBm ?
Yes
U600 Check
Pin19,20≥-65dBm ?
Yes
U600 Check
Pin11,12,13,28,29 : 2.9V ?
No
No
No
No
No
ANT600, R604contact?
RFS600,L603,L604,C619
C612, C613, C617, F601
U100 pin #A13, C109,#C4 ,C100
CHECK
resolder or change
PAM601
resolder or change
resolder or change
resolder or change
Yes
U600 Check
Pin30,31 : 26Mhz?
Vp-p : 950mV?
Yes
U600 Check
Pin4,5,6,7
Vp-p : 120mV?
Yes
U100 CHECK!!
No
No
OSC600
resolder or change
U600
resolder or change
9-15
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Page 16
9-2-3. PCS RX
Flow Chart of Troubleshooting
NORMAL CONDITION
catch the channel?
Yes
PAM601 Check
Pin1≥-65dBm ?
Yes
PAM601 Check
Pin20≥-65dBm ?
Yes
U600 Check
Pin17,18≥-65dBm ?
Yes
U600 Check
Pin11,12,13,28,29 : 2.9V ?
No
No
No
No
No
ANT600, R604contact?
RFS600,L603,L604,C619
C614, C615, C618, F602
U100 pin #A13, C109,#C4 ,C100
CHECK
resolder or change
PAM601
resolder or change
resolder or change
resolder or change
Yes
U600 Check
Pin30,31 : 26Mhz?
Vp-p : 950mV?
Yes
U600 Check
Pin4,5,6,7
Vp-p : 120mV?
Yes
U100 CHECK!!
No
No
OSC600
resolder or change
U600
resolder or change
9-16
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Page 17
Flow Chart of Troubleshooting
9-2-4. EGSM TX
PAM601 pin 12 :
about 32dBm?
Yes
ANT600,R604,C619
RFS600,L603,L604,
check & change
No
No
PAM601
pin 6 : 2.6V ?
Yes
PAM601
pin7: 3.7V?
Yes
PAM601 pin11
about 5dBm ?
Yes
PAM601
pin 8 : 2.8V ?
Yes
PAM601
check & change
No
No
No
U100
check
U100
check & change
BATTERY
check & change
U600
pin9,11.12,13,28,
29
:2.9V?
Yes
U600
pin30,31 :
26MHz ?
Vp-p : 950mV ?
Yes
U600
pin4,5,6,7
100mV ?
Yes
U600
check or resolder
No
check or resolder
OSC600
U100 pin
A13,J12,B3
check or resolder
U100
check or resolder
No
No
9-17
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Page 18
9-2-5. DCS TX
Flow Chart of Troubleshooting
PAM601 pin 12 :
about 30dBm?
Yes
ANT600,R604,C619
RFS600,L603,L604,
check & change
No
No
PAM601
pin 6 : 2.6V ?
Yes
PAM601
pin7: 3.7V?
Yes
PAM601 pin1
about 5dBm ?
Yes
PAM601
pin 8 : 2.8V ?
Yes
PAM601
check & change
No
No
No
U100
check
U100
check & change
BATTERY
check & change
U600
pin9,11.12,13,28,
29
:2.9V?
U600
pin30,31 :
26MHz ?
Vp-p : 950mV ?
Yes
U600
pin4,5,6,7
100mV ?
Yes
U600
check or resolder
No
check or resolder
OSC600
U100 pin
A13,J12,B3
check or resolder
U100
check or resolder
No
No
9-18
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Page 19
Flow Chart of Troubleshooting
9-2-6. PCS TX
PAM601 pin 12 :
about 30dBm?
Yes
ANT600,R604,C619
RFS600,L603,L604,
check & change
No
No
PAM601
pin 6 : 2.6V ?
Yes
PAM601
pin7: 3.7V?
Yes
PAM601 pin1
about 5dBm ?
Yes
PAM601
pin 8 : 2.8V ?
Yes
PAM601
check & change
No
No
No
U100
check
U100
check & change
BATTERY
check & change
U600
pin9,11.12,13,28,
29
:2.9V?
Yes
U600
pin30,31 :
26MHz ?
Vp-p : 950mV ?
Yes
U600
pin4,5,6,7
100mV ?
Yes
U600
check or resolder
No
check or resolder
OSC600
U100 pin
A13,J12,B3
check or resolder
U100
check or resolder
No
No
9-19
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