Download 7. Flow Chart of Troubleshooting

7. Flow Chart of Troubleshooting
7-1. Power On
' Power On ' does not work
Yes
Check the Battery Voltage
No
Change the Battery
is more than 3.4V
Yes
No
C405(VINT) = 2.7V?
Check the PMU related to VINT
Yes
Check the Clock at
No
Resolder OSC400
R401=32KHZ
Yes
C424(+VDD_IO_LOW) &
C423(+VDD_IO_HIGH) = "H"?
No
Check the related circuit
Yes
C402(+VDD_GSM_CORE)
No
Check the +VDD_GSM_CORE circuit
= 1.8V?
Yes
Check for the clock at C303
No
Check the clock generation circuit
(related to U100)
= 26MHz
Yes
Check the initial operation
Yes
END
7-1
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Flow Chart of Troubleshooting
ONKEYN
C405
C406
OSC400
R402
CC7V-T1A
C407
C408
Typical 3.7V
VBAT
BU_RST
POS
V400
C410
C409
C426
C411
NEG
R403
+VDD_RX_TX
C412
2.9V
+VDD_SLEEP
R404
+VCC_SYN
33
24
RF2VDD
23
RF12VBAT
+VDD_IMAGE
34
35
CPVDD
VCHG
32
36
C413
CPVBAT
31
CHGDRV
30
CHGCUR/BATMAX
VINT
29
VBAT
28
VSAVE
OSCI
27
REFC
OSCO
C414
26
_ONKEY
25
SCP
SCN
D3VDD
RF1VDD
SIMVCC
21
D1VDD
SIMIOCD
20
LPD1VBAT
19
SIMCKCD
U400
LPVDD
_SIMRSCD
18
+AVDD
HCVBAT
SIMEN
17
HCVDD
GPO3
16
C416
D2VDD
GPO2
15
IOD2VBAT
GPO1
14
IOVDD
+AVDD_HFA
12
11
10
9
8
7
6
5
4
3
_REC1
SCL
SDA
CLK32K
PWREN1
_SIMRSHC
SIMCKHC
SIMIOHC
_IRQ
_RSTHC
MICBIAS
_REC2
PWREN2
13
C422
38
R405
1.8V
+VDD_IO_LOW
SIMD3VBAT 40
22
C415
37
39
2
GND
GND
GND
GND
NC
NC
1.8V
41
SIM_VCC
42
SIM_IO
43
SIM_CLK
44
SIM_RST
SIM400
1
2
3
6
5
4
G G G G
10 9 8 7
45
46
47
V401
C418
C421
48
C419
C420
C417
49
50
51
52
53
54
1
TP400
+VDD_IO_HIGH
AUX_ON
C423
SCL
SDA
C424
32KHz_DIGIT
PON_TX
+VDD_IO_LOW
REF_ON
SIMRST
C425
SIMCLK
R406
2.15V
MIC_BIAS
RSTON
IT_PMU
SIMIO
+VCC_SYN
+VCC_SYN
U302
C312
R313
1
2
26M_CLK
R315
3
NC
VCC
5
INA
GND
R314
OUTY
4
26M_DIGIT
C315
D_REF_CLK
7-2
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Flow Chart of Troubleshooting
7-2. Initial
Initial Failure
Yes
No
Q300 pin 4 (RSTON) ="H"
Check the circuit related to reset
Yes
No
Is U200 R214, R215
Check the U200
OK?
Yes
Check the 16bit data signal
& memory CE
Yes
END
7-3
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Flow Chart of Troubleshooting
+VDD_GSM_CORE
+VDD_IO_LOW
+VDD_IO_LOW
+VDD_IO_HIGH_C
+AVDD
+VDD_IO_HIGH
+VDD_GSM_CORE_C
C200
+AVDD
L200
+VDD_IO_LOW
+VDD_GSM_CORE_C
+VDD_IO_HIGH_C
+AVDD
+VDD_USB
C213
+AVDD_HFA
C214
C201
C202
C204
C203
C205
C206
C207
C208
R200
TP200
H15
VDDE3
H12
VDDE4
R10
VDDREF
V13
VDDVB
G18
VDDVBO
G5
BE3
N5
TXD1
N2
N4
T17
T18
U2
U11
VDDE2
VDDE2
VDDE2
VDDE2
VDDE2
VDDE2
C2
D6
E9
E14
G15
H2
H9
J12
M9
VDDE1
VDDE1
VDDE1
VDDE1
VDDE1
VDDE1
VDDE1
VDDE1
VDDE1
U6
B11
M4
M15
P12
R7
U10
VDDBB
VDDC
VDDC
VDDC
VDDC
VDDC
VDDCLK
E13
H17
BBPWR
CKI
MCLKSEL
XIN32K
CLK32O
GPIOB11
XOUT32K
RSTRTC
2
1
B10
D14
E10
E12
E18
J18
K8
NC
NC
NC
NC
NC
NC
NC
NC
NC
A14
L15
B16
V16
L14
B15
A13
VDDA2
A15
VDDRTC
BT_RST
TXD1
R201
M8
GPIOA11
M7
GPIOA1
P10
GPIOA2
L10
GPIOA10
TP203
G12
RSTBB
U16
RSTEXT
A10
A11
B8
D9
E7
D10
B7
E8
G8
G7
A8
D8
A7
B9
A6
B6
J7
J8
A9
A3
A2
D1
A1
B2
A4
B5
D4
D5
B4
C1
E4
E5
B3
E6
A5
B1
F1
E1
F4
F5
G4
E2
K4
H5
G2
J5
H4
H7
L7
J11
R1
P1
P5
MCLK
R205
CLKBURST
RF_CLK
RF_DATA
RF_EN
H1
RSTEXTn
V10
D_REF_CLK
TP209
EDGE1_PA
AFC
RAMP
R206
C217
RX_TX_QN
MIC_BIAS_BB
V8
V7
U8
U7
J1
K1
K2
L1
L2
RX_TX_QP
RX_TX_IN
C220
MES_BATT
VF
TEMP_PRODUCT
EAR_ADC
J17
HFR1
H18
HFR2
K15
EAR1
J15
EAR2
R209
R208
R210
R211
MIC_N
MIC_P
AUXMICN
AUXMICP
TP213
TP215
C222
ANL
ANR
C223
D13
FSC
E11
DCL
B13
DD
B14
DU
FSC
DCL R213
DD
NC
DAI & Bluetooth data Interface
R214
U17
SCL
M14
SDA
END_OF_CHG
FLASH_EN
G17
SIMCLK
D15
SIMIO
N14
SIMPWR
F17
SIMRST
V2
GPIOA17
V3
GPIOA29
V4
GPIOA31
SIMCLK
SIMIO
TP224
SIMRST
EXT1
LCD_BL_ON
CHG_ON
F14
USBCN
G14
USBDM
H11
USBDP
USB Interface
VSSBB
VSSVB
VSSA4
VSSA5
VSSVBO
VSSCLK
VSSREF
USBCN
USBDM
USBDP
V6
H14
V9
P13
K17
U9
U13
GNDC
GNDC
GNDC
GNDC
GNDC
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
GNDE
B12
K14
M2
R12
U5
A12
D2
D7
D11
D12
E15
F15
G9
H10
J2
M10
P2
P4
P17
R18
U3
U12
HDP0
HDP1
HDP2
HDP3
HDP4
HDP5
HDP6
HDP7
HDP8
HDP9
HDP10
HDP11
HDP12
TMS
TCK
TDI
TDO
TRST
RTCK
JSEL
R215
SCL
SDA
TP221
P8
GPIOA30
P6
GPIOA27
R6
GPIOA28
U15
P15
V17
N17
L12
P18
J14
R14
R15
P14
V15
V14
N15
K5
L4
G10
L5
G11
F18
K12
+VDD_IO_HIGH
+VDD_IO_LOW
DU
R_CONTROL
MELODY_SEL
JACK_EN
N1
GPIOA24
T1
GPIOA25
L9
GPIOA26
TP225
RTCK
+VDD_IO_LOW
R218
TP226
J_SEL
TP227
TP228
TP229
TP230
TP231
TP232
TP233
RX_TX_IP
HFR_P
HFR_N
EAR1
EAR2
M18
MICN
N18
MICP
L17
AUXMICN
M17
AUXMICP
K18
ANL
L18
ANR
PIPESTAT(0)
PIPESTAT(1)
PIPESTAT(2)
TRCPKT(0)
TRCPKT(1)
TRCPKT(2)
TRCPKT(3)
TRCPKT(4)
TRCPKT(5)
TRCPKT(6)
TRCPKT(7)
KEY_COL(3)
KEY_COL(4)
EXT2
DCS
KEY_LED_ON
TP206
TP207
TP208
C219
QN
QP
IN
IP
AUXADC1
AUXADC2
AUXADC3
AUXADC4
AUXADC5
GPIOA18
GPIOA12
GPIOB5
GPIOA16
GPIOA19
KROW0
KROW1
KROW2
KROW3
KROW4
KCOL0
KCOL1
KCOL2
KCOL3
KCOL4
IT_PMU
M_INT
U14
VREF
V12
MICBIAS
U200
F2
GPIOB2
J4
GPIOA7
U4
GPIOA6
A16
A18
C17
B17
A17
D18
C18
D17
E17
B18
TP205
BT_INT
PON_TX
R9
AUXDAC1
R8
AUXDAC2
V11
AUXDAC3
M5
GPIOA0
U1
GPIOA13
K7
GPIOA14
L8
GPIOA15
K11
GPIOA20
TP222
TP223
R203
U18
RFCLK1
R17
RFDO1
G1
GPIOA9
V18
RFEN0
RESET
STROBE
R202
REF_ON
R13
RFSIG0
M12
RFSIG1
M11
RFSIG2
V5
GPIOA3
P9
GPIOA4
L11
GPIOA5
R11
RFSIG6
P11
RFSIG7
T2
GPIOA21
R2
GPIOA22
R5
GPIOA23
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
IO8
IO9
IO10
IO11
IO12
IO13
IO14
IO15
ADD0_BE0
ADD1_BE2
IO16
IO17
IO18
IO19
IO20
IO21
IO22
IO23
IO24
IO25
IO26
IO27
IO28
IO29
IO30
IO31
ADD18
ADD19
ADD20
ADD21
ADD21
ADD23
WE_E
OE_R_W
CS3
CS1
CS0
BE1
GPIOA8
ADV
P7
GPIOB8
R4
GPIOB9
V1
GPIOB10
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
KEY_ROW(4)
KEY_COL(0)
KEY_COL(1)
KEY_COL(2)
TXD2
RXD2
IMAGE_INT
IMAGE_RESET
TP202
H8
GPON0
M1
GPON1
JTAG
TRSTn
TDO
TDI
TCK
TMS
RSTON
R220
+VDD_IO_LOW
+VDD_IO_LOW
+VDD_IMAGE
+VDD_IO_HIGH
R307
R309
Q300
LCD_RESET
S_RST
3 D2
S2
2 G1
G2
1 S1
D1
4
RSTON
5
6
S_RST_IMAGE
7-4
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C209
C210
Flow Chart of Troubleshooting
7-5
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Flow Chart of Troubleshooting
7-3. Charging Part
Abnormal charging part
Yes
No
Check the U505 pin 1
> 4.9V
Check the circuit related to
V_EXT_CHARGE
Yes
No
U505 pin 5 = "L"?
Resolder or replace U505
Yes
No
Check the circuit related to
U505 pin 3 = "L"?
AUX_ON signal
Yes
Check the U505 pin 10
No
Resolder or replace U505
≒ 4.2V
Yes
END
7-6
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Flow Chart of Troubleshooting
Typical 3.7V
VBAT
V_EXT_CHARGE
+VDD_IO_HIGH
R510
Typical 1.4V
MES_BATT
C503
C504
ZD500
ZD501
R511
U502
1
5.0V
+VBUS
R512
BAT 10
CRDL
2 USB
AUX_ON
END_OF_CHG
ICDL 9
3 _PPR
GND 8
4 _CHG
USBON 7
5 _EN
CHG_ON
C505
USB_CHG_ON
IMIN 6
GND
11
C506
R515
R514
BATTERY CHARGING
7-7
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Flow Chart of Troubleshooting
7-4. Sim Part
Phone can't access SIM Card
Yes
No
SIM400 pin 1,5 = "H"?
Check the sim charge pump
Yes
After Power ON,
No
Check SIMCLK Signal on
Check the Clock
pin3 of SIM400 in a few second
Yes
No
After SIM card insert,
Replace PBA
SIM400 pin 2 = "H(SIM_RST)"?
Yes
Check the SIM Card
Yes
END
7-8
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Flow Chart of Troubleshooting
C406
C408
BU_RST
POS
C409
C426
NEG
2.9V
+VDD_SLEEP
RF2VDD
23
RF12VBAT
34
35
CPVDD
33
36
C413
CPVBAT
32
CHGCUR/BATMAX
31
VBAT
30
VCHG
29
CHGDRV
REFC
OSCI
28
VINT
27
VSAVE
26
_ONKEY
OSCO
25
24
SCP
SCN
37
38
R405
1.8V
D3VDD 39
+VDD_IO_LOW
SIMD3VBAT 40
22
RF1VDD
SIMVCC
21
D1VDD
SIMIOCD
20
LPD1VBAT
19
SIMCKCD
U400
LPVDD
_SIMRSCD
18
HCVBAT
SIMEN
17
HCVDD
GPO3
16
D2VDD
GPO2
15
IOD2VBAT
GPO1
14
IOVDD
13
12
11
10
9
8
7
6
5
4
3
_REC1
SCL
SDA
CLK32K
PWREN2
PWREN1
_SIMRSHC
SIMCKHC
SIMIOHC
_IRQ
_RSTHC
MICBIAS
_REC2
2
GND
GND
GND
GND
NC
NC
1.8V
41
SIM_VCC
42
SIM_IO
43
SIM_CLK
44
SIM_RST
SIM400
1
2
3
6
5
4
G G G G
10 9 8 7
45
46
47
V401
C421
48
C418
C419
C420
C417
49
50
51
52
53
54
1
TP400
C423
AUX_ON
SCL
SDA
32KHz_DIGIT
PON_TX
REF_ON
SIMRST
SIMCLK
7-9
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Flow Chart of Troubleshooting
7-5. Microphone Part
Microphone does not work
Yes
No
Check the connection
Resolder MIC
from MIC
Yes
Check the circuit
No
Resolder the C603, C607, R601, R604
R630, R631
from U200 to MIC
Yes
Check U601, U602 PIN 1
= ' H' ?
No
Check the JACK_EN signal
Yes
Check the MIC
No
Replace the MIC
Yes
END
7-10
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Flow Chart of Troubleshooting
MIC_BIAS
MIC_BIAS
MIC_BIAS_BB
Close to microphone
Close to MCP
U600
R600
7
C601
MICROPHONE
GND
1B1
MIC_CP
0B1
C602
C603
L600
4
VCC
A1
10
MIC_P
3
S0
C605
R601
5
9
MIC600
C600
6
S1
8
GND
11
C606
2
1B0
0B0
VCC
A0
12
R602
C604
L601
1
MIC_N
R603
6
5
4
C607
C608
R604
78
1
2
R605
3
JACK_EN
ZD600
R606
C609
7-11
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Flow Chart of Troubleshooting
7-6. Speaker Part(Melody)
Speaker does not work
Yes
No
Check the U602
Pin 3, 15
Check the U300
Yes
No
Check the U604 Pin 5
(EAR1)
Check the U604 Pin 1 (LOUD_EN),
Resolder U604
Yes
No
U300 pin 17,18 ≒ 1.8V?
Resolder U300
(When U300 operate)
Yes
No
Check the R714, R715
Resolder U602
Yes
No
Check LCD MODULE
SPK+, SPK= Operate
Check the board to board
Connector
Yes
No
Change the Speaker
Is Speaker working?
Yes
END
7-12
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Flow Chart of Troubleshooting
CN700
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
2 2
4 4
6 6
88
10 10
12 12
14 14
16 16
18 18
20 20
22 22
24 24
26 26
28 28
30 30
32 32
34 34
36 36
38 38
40 40
42 42
44 44
46 46
48 48
50 50
52 52
54 54
56 56
Y(0)
Y(1)
Y(2)
Y(3)
Y(4)
Y(5)
Y(6)
Y(7)
FLASH_EN
STROBE
S_RST_IMAGE
M_CLK
M_SCL
M_SDA
PCLK
VSYNC
HREF
+VDD_IO_HIGH 2.9V
OLED_EN
+VDD_IMAGE 1.9V
LCD_BL_ON
DIM_EN
R714
SPK_N
SPK_P
R715
60
59
58
57
60
59
58
57
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
C707
C708
C709
C710
C711
C712
C713
C714
C715
C716
R716
OEn
+VDD_IO_LOW
TP301
+VDD_IO_HIGH
HA(1)
CS5n_MELODY
WEn
TP302
HD(0)
33
G
D6
PLLC
D7
HD(6)
HD(7)
13
15
G
SPVSS
SPVDD
EQ3
14
16
SPK_P
AMP_P
VBAT
HFR_P
MELODY_SEL
R302
C304
C307
R303
C305
AMP_N
C306
SPK_N
HPL
R304
16
17
21
22
1
2
3
4
15 14 13
D1
12
GND
11
C300
NC
NC
D4
U602
1S2
4S1
1-2IN
3-4IN
3S2
D2
R305
5
6
7
8
HPR
EARP_HF
MELODY IC
7-13
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ANL
HPL
C311
HFR_N
R306
12
11
10
9
2S1
2S2
10
Typical 3.7V
VBAT
AMP_N
17
SPOUT1
36
C301
35
G
VREF
18
SPOUT2
EQ2
VSS
9
EQ1
8
VIB
MTR
HPOUT-R
VDD
HPOUT-L/MONO
19
7
C302
HD(5)
21
20
6
C303
U300
NC
AFR
5
HD(4)
22
4S2
D5
4
RSTON
D3
/RST
HD(3)
AMP_P
D4
V+
/IRQ
23
M_INT
R300
HD(2)
24
3
D3
3S1
D1
25
D2
LED
1S1
28
26
D0
/CS
27
/WR
31
A0
29
GND
CLKI
2
/RD
G
1
26M_DIGIT
30
IOVDD
34
HD(1)
32
ANR
LOUD_EN
HPR
R_CONTROL
AFL
Flow Chart of Troubleshooting
7-14
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Flow Chart of Troubleshooting
7-7. Key Data Input
Check Initial Operation
Yes
When one of the keys is
pushed,
No
Check the Dome sheet & Key Pad
No
Resolder V702, 703, 704, 705, 706
& Replace the PBA
Isn't it displayed on LCD?
Yes
When one of the keys is
pushed,
KEY_ROW(0,4),
KEY_COL(0,4)
signal is OK?
Yes
END
7-15
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Flow Chart of Troubleshooting
KEY_COL(0:4)
KEY_COL(4)
KEY_COL(3)
KEY_COL(2)
KEY_COL(1)
KEY_COL(0)
STAR1
KEY_ROW(0:4)
12
1
DIGIT0
12
SHARP1
12
DIGIT1
DIGIT4
DIGIT7
2
DIGIT2
12
12
1
DIGIT9
12
DIGIT6
12
DIGIT3
12
DIGIT5
12
2
DIGIT8
12
LEFT
12
RIGHT
12
1
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)_M
V_UP
CAMERA
KEY_ROW(3)
DOWN
12
12
SOFT1
12
12
INT
UP
2
SOFT2
12
CLR
SEND
1
2
V_DOWN
KEY_ROW(4)
KEY_MAP
VOL700
+VDD_IO_HIGH
1
U701
3
5
KEY_COL(1)
KEY_ROW(2)
V_COMMON
4
4
GND
KEY_ROW(2)_K
6
NC
V_DOWN
4
COM
GND
KEY_ROW(4)
KEY_ROW(2)_M
5
V+
V_UP
2
6
V704
V703
V702
SIDE_KEY
3
2
1
ZD701
VOL701
1
KEY_ROW(3)
IN
2
OUT
KEY_COL(0)
3
GND
6
5
4
V706
ONKEYN
CAMERA_KEY
12
END
END_KEY
1 78 23
ZD700
ZD701
C408 V705
7-16
V704V703
V702
3
NO
V706
2
KEY_ROW(3)
IN
ZD700
1
V705
FLIP
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Flow Chart of Troubleshooting
7-8. Receiver Part
Receiver does not work
Yes
No
Resolder U200 or change PBA
U602 pin 1,5 = 1.5V?
Yes
No
Resolder or replace U602
U602 pin 4,16 = 1.5V?
Yes
No
change U200
CN700 pin 52, 54= 1.5V?
Yes
No
LCD MODULE
SPK +,- PAD = 1.5V?
Change the Board to Board Connector
Yes
Yes
Check the soldering of the
No
Modify the speaker wire soldering
Replace the Speaker
spaeaker wire
No
Is Receiver working?
Yes
END
7-17
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V+
4S2
D1
GND
1-2IN
3-4IN
11
10
9
2S1
3S2
D2
6
HFR_N
5
7
ANR
LOUD_EN
HPR
R_CONTROL
AFL
D3
4
4S1
12
8
ANL
SPK_N
3
1S2
3S1
AMP_N
2
U602
HPL
MELODY_SEL
D4
GND
HFR_P
1
NC
NC
2S2
21
22
15 14 13
1S1
16
17
Typical 3.7V
VBAT
AFR
SPK_P
AMP_P
Flow Chart of Troubleshooting
7-18
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Flow Chart of Troubleshooting
7-9. Back Light (for Color Main LCD)
Backlight does not work
Yes
No
Is LCD Contrast set on high
level in the Menu?
Set LCD Contrast on high level
Yes
No
IC2 pin 3 = H ?
Change the board to board
Connector
Yes
No
Check the U601 & the related circuit
IC2 PIN 1 ≥ Vbat ?
Yes
Replace the LCD Module
Yes
END
7-19
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Flow Chart of Troubleshooting
C3
C2
VBAT
7-20
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Flow Chart of Troubleshooting
7-10. Key Back Light
Main Key LED does not work
Yes
No
Check the U200 related to "KEY_LED_ON"
U700 pin6 = "H"?
Yes
END
Typical 3.7V
VBAT
U700
KEY_LED_ON
6
5
4
CE
VDD
GND
GND
NC
1
2
VOUT
3
C700
R700
56
R701
56
R702
56
R703
56
R705
56
R706
56
R707
56
R704
56
R708
56
R709
56
R710
56
R711
56
LED705 LED706 LED702 LED703 LED700 LED707 LED708LED704 LED701 LED709 LED710 LED711
AOT-0603P-W03-X
KEY_LED
7-21
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Flow Chart of Troubleshooting
7-22
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Flow Chart of Troubleshooting
7-11. Camera part
"Camera" function does not work
Yes
No
Check the Camera
Reconnect the camera module
connector on Slide PCB
Yes
No
CN2 Pin 19, 22 = 2.8V?
Check the U400 ( or IC5)
Yes
No
C314 = 26MHz?
Check U302(pin2, pin4) related to
26Mhz
and R303
Yes
Is there another problem?
Yes
Replace the camera
module
END
7-23
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Flow Chart of Troubleshooting
U305
HD(0:15)
D2
E1
E2
E3
F1
F2
G1
G2
H1
H2
H3
J1
J2
J3
K1
K3
HD(0)
HD(1)
HD(2)
HD(3)
HD(4)
HD(5)
HD(6)
HD(7)
HD(8)
HD(9)
HD(10)
HD(11)
HD(12)
HD(13)
HD(14)
HD(15)
B1
B2
C2
C4
C5
C7
D8
D10
E9
TP309
S_RST
K5
K6
L6
M6
M7
Y(0)
Y(1)
Y(2)
Y(3)
Y(4)
Y(5)
Y(6)
Y(7)
A3
B4
A4
B5
A5
B6
A6
B7
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
GPIO8/MD16
GPIO7/MD17
GPIO6
GPIO5
GPIO4
STROBE/GPIO3
GPIO2
GPIO1
GPIO0
LRS
LCS1
LCS2
LREN
LWEN
DI0
DI1
DI2
DI3
DI4
DI5
DI6
DI7
M10
LD0
M9
LD1
L10
LD2
L9
LD3
L8
LD4 K10
LD5
K9
LD6
K8
LD7
K7
LD8
J9
LD9
J8
LD10
H8
LD11
G9
LD12
G8
LD13
F9
LD14
F8
LD15
M3
LD16
M4
LD17
MINT
MWEN
MREN
MCS
MA0
MA1
CLKI
CLKO
SMCLK
PCLK
HREF
VSYNC
SDA
SCL
RESET
MVDD
MVDD
RVDD
RVDD
LVDD
LVDD
SVDD
SVDD
CVDD
CVDD
CVDD
CVDD
LD(0)
LD(1)
LD(2)
LD(3)
LD(4)
LD(5)
LD(6)
LD(7)
LD(8)
LD(9)
LD(10)
LD(11)
LD(12)
LD(13)
LD(14)
LD(15)
+VDD_IMAGE
R310
R311
L2
M2
M1
L1
D1
C1
IMAGE_INT
WEn
OEn
CS3n_IMAGE
HA(1)
HA(2)
G10
H10
C10
A8
A9
B9
26M_DIGIT
M_CLK
PCLK
HREF
VSYNC
M_SDA
M_SCL
A10
B10
A1
IMAGE_RESET
+VDD_IO_LOW
L3
C3
G3
E8
K4
D9
B8
A2
L4
C6
L7
E10
NC
NC
+VDD_IO_HIGH
+VDD_IO_HIGH
R318
C318
+VDD_GSM_CORE
1
2
C319
C5
RS
LCD_MAIN_CS
LCD_SUB_CS
L_RD
L_WR
Y(0:7)
DVSS
DVSS
DVSS
DVSS
DVSS
DVSS
DVSS
DVSS
DVSS
DVSS2
DVSS
DVSS
DVSS
LD(0:15)
C6
M8
F10
L5
K2
J10
H9
F3
D3
C9
C8
B3
A7
M5
7-24
SAMSUNG Proprietary-Contents may change without notice
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R317
C316
Flow Chart of Troubleshooting
7-25
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Flow Chart of Troubleshooting
7-12. FM RADIO
"FM Radio" function does not work
Yes
No
Check the Insert
Earphone
Insert the Earphone or Change the
Earphone
Yes
No
R624 = 2.8V
Check the U603
Yes
No
U603 TP605 = 'H'
Check U200
Yes
Replace the U603
END
7-26
SAMSUNG Proprietary-Contents may change without notice
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Flow Chart of Troubleshooting
C620
C619
C618
R_ANT
2.9V
C621
L604
C623
+VDD_IO_HIGH
C624
R624
0
C622
U603
R617
SCL
R618
C625
C626
SDA
32KHz_OUT
TP603
TP604
R_INT
TP605
TP606
L605
A4
E7
D2
A7
B2
B7
F2
C7
D6
F7
C2
G1
F6
E6
G7
A2
A3
A1
G4
CD1
BUSENABLE
CD2
CAGC
CD3
RFIN1
CLOCK
RFIN2
SWPORT
CPOUT
DATA
TIFCENTER
AGND
TMUTE
DGND
VAFL
DGND
VAFR
DGND
VCC
VDD
RFGND
VREFDIG
FREQIN
INTCON1
XTAL
INTCON2
NC
INTX
NC
LO1
NC
LO2
NC
LOOPSW
MPXOUT
A6
B1
D1
C1
A5
G2
G6
F4
G5
E1
D7
B6
F1
B4
G3
1
2
BUSENABLE
TP600
TP601
TP602
R619
C627
R620
R621
7-27
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C628
SW_PORT
AFL
AFR
Flow Chart of Troubleshooting
7-13. BLUETOOTH
BLUETOOTH does not work
Yes
No
Check the U200
R316 = 'H'
Yes
No
Replace U301
Replace ANT300
Yes
END
7-28
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
+VDD_IO_LOW
L300
ANT300
C313
13
2
U301
R316
BT_INT
TXD2
RXD2
BT_RST
TP310
TP311
TP312
TP313
0
B6
B5
B3
A4
B2
B1
C5
A3
C4
E6
D4
E4
F4
D5
E3
D3
B4
VCC
VCC_IO
UART_CTS/USB+
UART_RTS/USBUART_RxD
UART_TxD
RESETB
X_IN
AIO0
RF_IO
PIO0
PIO1
PIO2
PIO3
PIO4
PIO5
PIO8
VDD18V
SPICLK
SPICSB
SPIMISO
SPIMOSI
PCMCLK
PCM_IN
PCM_OUT
PCM_SYNC
GND
GND
GND
GND
GND
GND
GND
NC
NC
NC
C6
C317
E2
F3
F2
E1
D1
D2
C1
C2
TP314
TP315
TP316
TP317
A5
A6
C3
D6
E5
F1
F5
1
2
A2
BLUE TOOTH
7-29
SAMSUNG Proprietary-Contents may change without notice
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DCL
DD
DU
FSC
C314
Flow Chart of Troubleshooting
7-14. GSM Receiver
RX ON
RF input : 62CH
Amp : -50dBm
Yes
No
Module1 pin8
>= -65dBm
Resolder CN100, C101
Yes
Module1 pin1, pin2
>= -65dBm
No
Check Module1
pin9,pin10,pin12 = L
No
Check ANT Switch
control circuit
Yes
Yes
Resolder Module1
U100
E1 >= -70dBm
F1 >= -70dBm
No
Resolder C106, C108, L107
Yes
U100 H7,H8,J7,J8
>= 1V
No
Check U100
J2,A6,B6,A9,E9
>=2.7V
No
Check & Resolder
U100, R114, R116
RF26MHz, RF PSU Part
Yes
Yes
Resolder U100
C219, C220
>= 1V
Yes
Check U200
END
7-30
SAMSUNG Proprietary-Contents may change without notice
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Flow Chart of Troubleshooting
7-15. GSM Transmitter
TX ON (5Level)
Yes
Module1 Pin8
>= 20dBm
Yes
Resolder CN100, C101
No
Module1 pin11
>= 18dBm
Yes
Check Module1
pin10 = H (2.68V),
pin9, pin12 = L
No
Check ANT Switch
control circuit
Yes
No
Yes
U101 pin8
>= 18dBm
Change or Resolder
Module1
Resolder R122
No
Yes
U101 7pin
>= -11dBm
Check U101
+VBAT, pin4, pin6
OK?
Yes
Resolder or Change U101
No
Check +VBAT or U101
control signal
No
No
U100 H7,H8,J7,J8
>= 1V
Check U100
J2,A6,B6,A9,E9
>=2.7V
No
Check & Resolder
U100, R114, R116
RF26MHz, RF PSU Part
Yes
Yes
Resolder U100
Check U200
END
7-31
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
7-16. DCS Receiver
RX ON
RF input : 698CH
Amp : -50dBm
Yes
Module1 Pin8
>= -65dBm
No
Resolder CN100, C101
Yes
Module1 pin3, pin4
>= -65dBm
No
Check Module1
pin9,pin10,pin12 = L
No
Check ANT Switch
control circuit
Yes
Yes
Resolder Module1
U100
D1 >= -70dBm
C1 >= -70dBm
No
Resolder C104, C105, L104, L105
Yes
U100 H7,H8,J7,J8
>= 1V
No
Check U100
J2,A6,B6,A9,E9
>=2.7V
No
Check & Resolder
U100, R114, R116
RF26MHz, RF PSU Part
Yes
Yes
Resolder U100
C219, C220
>= 1V
Yes
Check U200
END
7-32
SAMSUNG Proprietary-Contents may change without notice
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Flow Chart of Troubleshooting
7-17. DCS Transmitter
TX ON (0Level)
Yes
Yes
Module1 pin8
>= 20dBm
Resolder CN100, C101
No
Module1 pin13
>= 18dBm
Yes
No
Check Module1
pin12 = H (2.68V),
pin9, pin10 = L
No
Check ANT Switch
control circuit
Change or Resolder
Module1
Yes
Yes
U101 pin9
>= 18dBm
Resolder L110, C117, L112, C139
No
Yes
U101 pin1
>= -11dBm
Check U101
+VBAT, pin4, pin6
OK?
Yes
Resolder or Change U101
No
Check +VBAT or U101
control signal
No
U100 H7,H8,J7,J8
>= 1V
No
Check U100
J2,A6,B6,A9,E9
>=2.7V
OK?
No
Check & Resolder
U100, R114, R116
RF26MHz, RF PSU Part
Yes
Yes
Resolder U100
Check U200
END
7-33
SAMSUNG Proprietary-Contents may change without notice
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Flow Chart of Troubleshooting
7-18. PCS Receiver
RX ON
RF input : 661CH
Amp : -50dBm
Yes
No
Module1 pin8
>= -65dBm
Resolder CN100, C101
Yes
Module1 pin5, pin6
>= -65dBm
No
Check Module1
pin9= H
pin10, pin12 = L
No
Check ANT Switch
control circuit
Yes
Yes
Resolder Module1
U100
B1 >= -70dBm
A1 >= -70dBm
No
Resolder C115, C116, L108, L109
Yes
U100 H7,H8,J7,J8
>= 1V
No
Check U100
J2,A6,B6,A9,E9
>=2.7V
No
Check & Resolder
U100, R114, R116
RF26MHz, RF PSU Part
Yes
Yes
Resolder U100
C219, C220
>= 1V
Yes
Check U200
END
7-34
SAMSUNG Proprietary-Contents may change without notice
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Flow Chart of Troubleshooting
7-19. PCS Transmitter
TX ON (0Level)
Yes
Module1 Pin8
>= 20dBm
Yes
Resolder CN100, C101
No
Module1 pin13
>= 18dBm
Yes
No
Check Module1
pin12 = H (2.68V),
pin9, pin10 = L
Check ANT Switch
control circuit
Yes
No
Yes
U101 pin9
>= 18dBm
Change or Resolder
Module1
Resolder L101, C117, L112, C139
No
Yes
U101 pin1
>= -11dBm
Check U101
+VBAT, pin4, pin6
OK?
Yes
Resolder or Change U101
No
Check +VBAT or U101
control signal
No
U100 H7,H8,J7,J8
>= 1V
No
Check U100
J2,A6,B6,A9,E9
>=2.7V
OK?
No
Check & Resolder
U100, R114, R116
RF26MHz, RF PSU Part
Yes
Yes
Check U200
END
7-35
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Resolder U100
Flow Chart of Troubleshooting
GSM_TX
DCS_TX
DCS
TXON
VBAT
RAMP
R102
R106
R101
R105
C111
C118
C120
C123
C122
R103
R107
13
2
F100
2
3
4
5
6
U101
BAND
1
DCS/PCSIN
TXEN
7
GSMIN
VBATT
8
GSMOUT
GND
9
DCS/PCSOUT
VRAMP
GND
10
C109
L110
R122
0
C117
C110
L112
C139
R116
1
2
U102
GND OUT
VCON VCC
R118
VC1
VC2
VC3
R114
0
+VCC_SYN
4
3
C134
C112
L100
ANT101
L102
J_ANT
C114
C126
R100
0
C125
C129
C113
C128
C132
GSM_TX
DCS_TX
L101
2
A
3
C
4
G
CN100
KMS-512
G
L103
MODULE1
LMG003W-5108A
C101
1
8
R111
H6
J3
B6
A8
A6
J2
B3
G8
A3
E9
A9
A7
J5
J4
B9
C102
TXOUTG
TXOUTD
TCXOIN
VCCTXVCOG
VCCTXVCO
VCCRFVCO
VCCRFSYN
VCCRFLO
VCCOPLL
VCCMIX
VCCMASH
VCCLNA
VCCCLK
VCCBUF
VCCBB
+VDD_SLEEP
DCS_RX1 3
4
DCS_RX2
1
EGSM_RX1
EGSM_RX2 2
PCS_RX1 5
6
PCS_RX2
+VCC_SYN
7
G
11 EGSMTX ANT
9 VC3
12 VC2
10 VC1
13 DCS|PCSTX
+VDD_RX_TX
C124
C127
C133
R117
R119
SDATA
QOUTB/QINB
QOUT/QIN
PCSLNAIB
PCSLNAI
PCSGND
PCSDCSGND
LE
IOUTB/IINB
IOUT/IIN
C105
L107
15nH
L104
C106
L105
L108
C108
L109
NC
NC
GNDTXVCOG2
GNDTXVCOG1
GNDTXVCOD
GNDTXVCOB
GNDRFSYN
GNDOPLL
GNDMASH
GNDLNA
GNDCLK
GNDBUF2
GNDBUF1
GND
GND
GND
DIVON
DCSLNAIB
DCSLNAI
DCSGSM1GND
CLKOUT2
CLKOUT1
CLK2CONT
CLK
CAPQB
CAPQ
CAPIB
CAPI
C116
U100
GSM1GSM0GND
GSM1LNAIB
GSM0LNAIB
GSM1LNAI
GSM0LNAI
GSM0GND
D8
D1
C1
D2
D9
G9
C8
F8
B5
A5
B4
A4
1
2
J6
H5
H3
H4
B7
H2
J9
J1
E8
C9
B8
A2
C3
E2
R112
C104
C107
C115
2.8V
DCS_RX_P
DCS_RX_N
EGSM_RX_P
PCS_RX_P
EGSM_RX_N
R121
C131
PCS_RX_N
C130
+VCC_SYN
0
TP100
C137
C135
R120
R115
0
DCS_RX_P
DCS_RX_N
RF_CLK
26M_CLK
SAMSUNG Proprietary-Contents may change without notice
ANT100
R104
C136
RF_DATA
RX_TX_QN
RX_TX_QP
PCS_RX_P
PCS_RX_N
F9
H8
J8
B1
A1
B2
C2
H9
H7
J7
F2
F1
H1
E1
G1
G2
This Document can not be used without Samsung's authorization
C100
C103
R108
R109
C121
R110
AFC
C138
RF_EN
RX_TX_IN
RX_TX_IP
EGSM_RX_P
EGSM_RX_N
7-36
Flow Chart of Troubleshooting
7-37
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
7-38
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization