Samsung M7500 Troubleshooting
10. Flow Chart of Troubleshooting
10-1-1.
Power ON
Power On' does not work
'
Check the current consumption
Yes
Current consumption
Check the Vbat Voltage
Voltage
#3
Pin
mA
>= 100
Yes
>=3.3V
Yes
of D400 is high?
Yes
No
No
Download again
Charge the Battery
No
Check D400
Check the PMIC output
voltage
C421,C422,C423,C417,
(
C424,C427)
Yes
Check Pin#3 of TCX200
is
MHz?
19.2
Yes
Check the initial operation
END
No
No
Check PMIC400
Check the clock generation circuit
relatedtoTCX200
(
)
10-1
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Flow Chart of Troubleshooting
C
C
3
3
0
0
3
C350
R315
C351
R204
6
D
3
0
1
C235
C232
C237C245
T
C
X
2
0
0
D
3
0
0
C
2
3
4
C123
C101
C316
C
3
2
7
E
K
A
W
_
T
S
O
H
_
T
P
T
S
R
_
T
B
_
P
T
TP_BT_RTS
L
T
C
_
G
E
R
V
_
T
B
_
P
T
T
P
_
B
T
_
C
T
S
TP_PCM_SYNC
N
I
D
_
M
C
P
_
P
T
C124
C
C
C
D
4
0
0
4
2
3
3
3
0
C
4
1
3
R407
C
4
1
9
L
1
0
0
C
4
0
2
C104
C
4
2
2
2
2
9
C412
C423
0
0
C421
R400
C414
C416
R401
R
4
0
3
C
4
0
6
4
C
I
M
P
C
C
4
C
4
0
7
4
0
1
9
1
BOTHHOLE706
T
P
_
P
C
M
_
TP_BT_WAKE
0
0
1
D
O
U
T
TP_PCM_CLK
T
B
U
C115
L
F
B
2
1
C
4
1
0
C
TP_VREG_GP2
4
2
0
2
G
4
5
S
C
G
8
4
A
1
0
6
6
8
C
C
4
4
0
2
0
7
T
P
_
B
T
_
E
N
C108
C
1
1
9
R109
C127
C102
C100
C
1
F
1
3
1
0
4
C109
C
4
R
3
4
4
0
6
C428
C
C
4
4
0
0
5
4
C435
R408
BOTHHOLE701
R
1
0
3
MOT700
L
1
0
2
C
4
0
3
A
N
T
3
10-2
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PMIC Part>
<
PM IC
Flow Chart of Troubleshooting
VBATT
VBATT
3
4
0
0
4
4
C
C
1005
VBUS OVP
VBUS_OUT
4
3
4
C
C406
C407
C408
C405
A7
VF
B7
K3
VF_MSM
TP_AMUX_OUT
SIM_RST
SIM_CLK
R404
L3
L1
L2
D7
H7
D6
H6
D5
H5
SIM_IO
K2
JIG_ON
B4
D4
H8
C11
E10
D10
B5
B6
A5
A6
D8
E4
E11
H10
C430
B10
F11
G4
J1
J2
H2
F4
F2
H4
H1
C411
C410
C412
C409
C413
6
0
4
R
VBATT
TCXO_EN
BUFF_TCXO
BT_TCXO
(Separate from RF line)
USB_DAT_MSM
USB_D_M
USB_D_P
(Same line length & separate from RF line)
USB_OE_MSM
USB_SEO_MSM
(Separate from strong data line)
REF_OUT
BT_EN
TCXO
MSM_SIM_RST
MSM_SIM_CLK
MSM_SIM_IO
C414
R400
MPP1|AMUX_IN1
MPP2|AMUX_IN2
AMUX_OUT
MPP3|VIB_DRV_N
MPP4|LCD_DRV_N
KPD_DRV_N
MPP5|RUIM_M_RST
MPP6|RUIM_RST
MPP9|RUIM_M_CLK
MPP10|RUIM_CLK
MPP11|RUIM_M_IO
MPP12|RUIM_IO
MPP7|CBLPWR_N
MPP8|REF_OUT
OPT_1
OPT_2
REF_BYP
REF_GND
REF_ISET
SPKR_IN_M
SPKR_IN_P
SPKR_OUT_M
SPKR_OUT_P
TCXO_EN_1
TCXO_EN_2
TCXO_IN
TCXO_OUT_1
TCXO_OUT_2
TCXO_OUT_RF
USB_DAT
USB_D_M
USB_D_P
USB_ID
USB_OE_N
USB_OVP_G
USB_SE0
USB_VBUS
D
N
G
5
E
0
1
1
1
3
2
9
4
1
5
7
1
1
1
1
L
E
L
F
B
B
B
A
G
K
H
A
3
F
V
P
C
R
N
N
T
A
B
V
D
N
G
6
E
V
M
M
I
I
2
5
5
R
K
A
G
S
M
A
S
_
U
_
_
L
_
P
S
M
_
R
M
G
D
D
W
S
_
W
M
D
_
_
E
_
D
S
D
_
_
D
VREG_GP1
D
D
D
R
D
V
V
V
D
D
D
V
D
D
V
D
D
V
VREG_GP2
D
V
V
V
V
V
VREG_GP3
VREG_MMC
VREG_MSMA
VREG_MSME
VREG_MSMP
VREG_MSMC
VSW_MSMC
VREG_RFRX1
VREG_RFRX2
VREG_RFTX
VREG_RFUBM
VREG_RUIM
VREG_S2
PMIC400
VREG_S3
VSW_S2
VSW_S3
VREG_TCXO
VREG_USB
VREG_WLAN
XTAL_IN
XTAL_OUT
SBDT|SSBI
BAT_FET_N
CHG_CTL_N
HSET_BIAS
KPD_PWR_N
MSM_INT_N
PON_RESET_N
PS_HOLD
SLEEP_CLK
D
D
D
D
D
D
D
C
N
N
N
N
N
N
N
N
C
C
G
G
G
G
D
N
N
G
G
G
1
7
5
6
7
7
6
5
1
1
2
F
F
F
E
G
G
G
D
V_RF_S2_2.1V
VDD_EAR_2.9V
R402
VREG_MSMP_2.6V
TP_1.8V
C422
S
O
1
P
G
E
2
N
TP_2.6V
C423
BAT400
VREG_MSMC_1.2V
TP_1.2V
C417
VREG_USIM_3.0V
C418
PS_HOLD
BOOT_SW
VREG_SD_2.8V
C433
VREG_MSMA_2.6V
C420
VREG_MSME_1.8V
C421
C432
0
0
4
C402
A3
A2
TP_VREG_GP2
B1
L9
G11
K8
J11
K4
K5
L400
A9
A10
A8
B8
L10
L8
L6
K7
L401
L402
K6
A1
G2
B11
VREG_MSMP_2.6V
VBATT
D1
ISNS_M
D2
ISNS_P
L11
K11
F8
R401
SBCK
G8
E8
R403
SBST
J10
VCOIN
VCHG
VBUS_OUT
E2
C2
C1
K1
L4
C10
G10
F10
K9
C435
R407
C
C415
OSC400
PMIC_SBDT
R408
ON_SW
PM_INT_N
PON_RESET_N
SLEEP_CLK
C431
D400
2
3
1
C419
V_RF_S2_2.1V
V_RF_S3_2.7V
C425
C424
VREG_BT_2.6V
VREG_TCXO_2.8V
C427
C429
C416
C426
C428
10-3
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
10-1-2.
Charging Part
Initial Failure
5.0V @
U400 pin4=High?
Check the Battery&TA
Yes
C601
Yes
Yes
Yes
?
No
if it has some problem, it is to be replaced.)
(
No
Check the CN600
Replace U400
No
Check the U400
JTAG_301
T
P
_
2
.
6
V
END
T
P
_
G
N
W
E
_
_
TP_SDRAM_RAS_N
TP309
M
TP_SDRAM_A[0]
P
I
O
0
4
C447
T
P
_
1
.
8
V
R316
R415
R416
C352
R421 R422
CLIP307
C807
C808
C809
C810
ZD806
C811
C812
A
D
R
S
C650
T
S
P
C
_
M
_
P
T
A
R
D
S
_
P
T
T
P
_
P
S
_
H
O
L
D
TP_RP
U400
C642
3
1
6
U
_
R
D
Y
C745
0
E
_
W
P
T
T
_
D
R
0
3
P
T
P
K
L
C
_
A
M
R
S
D
_
P
T
R420
R
R424
6
0
1
C
6
4
6
C
6
4
4
UME300
U
C
R
R
1
6
8
L
3
0
3
R604
R
6
0
5
L
3
0
0
C342
C341
4
1
8
L301
8
7
1
1
0
5
6
TP_BOOT_SW
TP_JIG_ON
U1411
U605
C
6
0
1
TP_INTB
C600
U805
L710
1
0
8
U
C313C314
C354
C353
U1409
10-4
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Flow Chart of Troubleshooting
10-1-3.
Sim Part
Insert SIM is displayed on the LCD
"
Yes
Check the SIM connector's
SIM
(
connection to
600)
SIM card
Yes
Check the voltage at pin#1
of SIM
600 >= 3.0V ?
Yes
Is there any signals
pin#2,#3,#4 of SIM
600 ?
No
No
No
Resolder or change SIM
Check the PMIC400
Check the PMIC400
600
Yes
Check the SIM Card
END
VREG_USIM_3.0V
R405
1
VCC
SIM_RST
SIM_CLK
SIM_IO
2
6
1
7
3
4
3
4
1
4
C
U
C
R414
C445
R410
R411
C446
V
C
C
C
R
R
7
7
7
7
7
0
0
0
0
0
6
5
4
3
8
U
C
R
C
1
4
4
4
4
0
1
3
3
5
2
6
7
C438
2
VCC
3
CLK
4
GND
5
0
VPP
6
0
I/O
6
7
NC
8
M
NC
I
9
9
0
8
NC
3
4
3
4
C
SIM CON
5
A
E
H
C
C
C
7
7
7
0
0
0
7
3
2
C
4
4
0
S
10
4
4
C
C
NC
ZD606
C444
U1405
C442C443
ZD605
R413
R412
R817
C441
R409
R
R
R
8
8
8
1
1
1
4
3
2
C
4
3
9
SIM600
10-5
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Flow Chart of Troubleshooting
10-1-4.
Microphone Part
Microphone does not work
Is the soldering status of
microphone O.K?
Check the reference voltage on MAIN-MIC path
1.8V @
Is microphone ok?
END
Yes
Yes
Yes
R500
Yes
Yes
No
Resoldamicrophone
?
No
No
Check UCP300
Check the path
or replaceamicrophone
around MIC_BIAS circuit
10-1-5.
Receiver Part
There is no sound from the Receiver
Yes
Is the terminal of Receiver
Is there any signals at R713
Check HEA701
RECEIVER/SPEAKER/ear jack FPCB.
O.K
?
and R714
#7, #9
END
Yes
Yes
?
No
Replace the Receiver
No
Check UCP300
Pin and
10-6
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This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
O
S
C
4
0
C
R
6
6
0
0
6
6
L400 L401L402
CLIP311
Z
D
C516
7
0
1
R505
Z
D
7
R504
0
2
MIC400
MIC_BIAS
R500
C508
R502
MIC1_P
MIC1_N
C509
C511
C515
C517
C502
C503
R506
C
0
4
3
1
C
C
R402
4
4
3
3
C
5
1
3
C502
C513
C516
2
3
R504
MIC1P_F
R505
MIC1N_F
C
6
4
1
2
C
2
4
0
C
6
4
3
1
6
ZD800
C
8
2
6
C
8
2
7
C
8
2
0
C
8
2
1
C819
V2
C
2
3
9
MIC_MAIN
F
7
0
3
A
V
R
L602
C
F
1
4
S
7
0
3
0
Q
0
2
3
0
1
0
0
R
F
7
C746
0
4
C
6
3
3
C
8
U
3
3
C825
Z
D
8
0
1
C
C
C
8
8
8
2
3
2
9
0
8
C
C
C
8
8
8
2
2
2
2
3
4
Z
D
8
0
3
ZD802
C
C
C
R
2
2
2
2
4
2
2
1
2
6
5
1
ZD300
C
R
T
-
4
6
D
1
8
1
3
2
K
R311
0
2
6
0
1
P
R
U
R310
C
6
2
C628
R312
9
C
3
1
8
C
C
3
3
2
2
3
2
C305
C302
C307
C301
C348
R313
R308
C355
C345
R732
C356
C343
C329
T
C
P
_
C331
A
M
3
U
X
4
_
O
U
6
T
R734R736
C333
C
C
C
C
C
R
2
2
2
2
2
2
2
2
4
3
4
1
8
7
8
1
4
0
P
0
0
3
C
U
T
P
R
R
R
R
R
R
R
_
M
3
O
0
D
E
2
3
0
0
R
3
3
5
3
3
3
5
C319
0
0
2
0
0
0
2
3
6
1
1
5
0
0
R314
C320
C
3
0
C316
6
D
D
3
3
C
0
0
3
0
1
2
7
C350
C
3
0
3
TP_1.2V
C
C
C
C
3
3
3
2
1
2
3
4
1
7
2
5
C304
C309
C300
C308
R304
C344
C330
C328
C332
R404
C312
C311
C310
L
3
0
2
BOTHHOLE706
10-7
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