Samsung SGH-M150 TSHOO
9. Flow Chart of Troubleshooting
Power On
9-1.
OWER ON' does not work
'P
Yes
Check battery voltage
is higher than
Check VCC_SYN_2.8V
and VDD3_1.8V of U101
Check the pin1of
OSC100 produces clock
Check the pin7of U101
produces
signal
26M
3.3V
OK
OK
OK
pulse signal
Not OK
NotOK
Not OK
Not OK
Change battery
older PMIC, U101, C133 and C134
S
older OSC100, U101 and C127 again
S
again
older OSC100 again
S
OK
No
Is Power On working?
Yes
END
Repeat sequence
9-1
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Flow Chart of Troubleshooting
Power On
REF_ON_PMU
RF_CLK
RF_DATA
RX_TX_QN
RX_TX_QP
RX_TX_IN
RX_TX_IP
D_REF_CLK
CAMERA_26MHz
BT_CLK
PON_3587_SYNTH
RFIC_RESET
+VDD_IO_LOW_1.8V
+VDD_SYN_2.8V
RF_EN
R105
R109
R110
R115
R117
C127
R118 C131
C132
R121
C112
C133
RFIC_RESET
C122
C125
OSC100
4 3
2
1
21
24
25
2728
29
26
D
C
C
C
N
K
N
N
N
L
G
C
_SEN
SDIO
BQN
BQP
BIN
BIP
XOUT
8 9
S
T
E
S
N
E
D
O
I
P
R
_
_
V
11
1
2
3
4
5
6
7
C134
20
19
22
23
2
1
L
N
A
E
T
X
X
U101
D
D
D
D
V
V
1210
13
E
D
L
V
D
D
I
A
O
V
D
T
X
M
X
X
18
RFILN
17
RFILP
16
RFIHN
15
RFIHP
H
L
O
O
F
F
R
R
14
R122
C121
L107
C123
C124
L109
C126
R120
R123
R126
R128R127
+VDD_RX_TX_2.8V
C114
10
35
L106
NC
L108
DCS_TX
EGSM_TX
2
GG
GG
OUT2
6
IN2
B9308
F100
4
IN1
1
BAL2
7
OUT1
8
BAL1
9
EGSM_RX
DCS_RX
0
1
3
3
1
C
U
C127
5
2
1
C
2
2
1
C
1
1
7
R
1
1
5
R
0
1
1
R
1
0
9
R
R126
R120
3
2
1
R
C126
8
F
1
0
0
0
1
L
C124
C123
2
2
1
R
L
1
0
9
L
1
0
7
1
C121
C112
R105
4
1
1
C
0
0
1
C
S
O
9-2
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9-2.
Flow Chart of Troubleshooting
Initial
Initial Failure
Yes
Check VDD1, VDD3=1.8V,
VDD2=2.9V and AVDD=2.6V
of UCP
200
OK
Check D_REF_13M of
UCP
200
OK
END
MES_BATT
+VDD_IO_HIGH_2.9V
+AVDD_2.6V
+VDD_SLEEP_2.9V
+VDD_USB_3.3V
C310
C314
C316
C318
C303
R300
R301
+VDD_PLL_1.2V
V_BATT
Not OK
Not OK
Check U301
Check U101 and POWER ON Sequence
C300
C308
C311
C315
C317
R316
+VDD_IO_LOW_1.8V
+AVDD_HFA_2.6V
+SIM_VCC_3.0V
+VDD_RX_TX_2.8V
+VDD_SYN_2.8V
PMU_INT
C325
C332
POS
1
NEG
2
BAT300
R304
C333
OSC300
C321
8
0
9
1
2
6
5
5
5
5
5
5
N
C
C
D
D
I
N
N
D
D
1
2
3
OSCI
OSCO
_IRQ
V
V
V
1
C
C
D
L
L
5
9
5
6
8
7
5
4
4
4
4
4
D
D
V
1
D
A
D
D
A
D
D
T
T
D
D
D
D
A
A
V
V
V
V
3
2
B
B
P
O
I
D
D
L
V
V
0
1
2
3
4
4
4
4
4
4
E
D
D
D
C
V
D
C
D
D
39
A
V
V
V
V
VSS
1
2
S
C
M
I
F
F
V
H
S
R
R
38
VCHG
37
VUSB
9-3
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C322
V_EXT_OVP_5.0V
VBUS_5V
C330
Flow Chart of Troubleshooting
U
3
0
2
D
L
5
0
4
1
0
5
5
0
4
R
8
3
1
C
R
1
1
2
2
8
7
C
1
3
9
1
1
3
C
5
3
3
C
3
0
0
R
3
0
3
C
3
0
1
R
C
3
1
7
C315
C308
C300
C310
C314
C316
C318
3
0
2
A
T
C
3
6
6
3
2
1
C
4
3
4
C
4
3
9
C
6
1
3
C
L505
0
3
3
C
TP_PMU_INT
3
2
5
C
C332
C
C
5
3
0
3
3
6
R
1
0
3
U
3
0
6
R
D
5
0
0
6
0
5
C
3
0
7
R
C
C
3
3
6
3
5
7
0
3
0
C
L503
9
0
3
R
1
0
0
D
S
O
2
3
C334
1
5
4
6
VR300
4
2
4
0
3
C
4
0
5
C
3
R
C356
3
C
3
C
3
C
4
R507R508
6
2
3
C
C360
0
C
3
4
3
L302
L303
R314
3
L
9-4
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Flow Chart of Troubleshooting
9-3. S
IM Part
Insert SIM" is displayed on the LCD
"
The voltage is
at the pin#1 IFC3
Yes
Is there any signal pin
Check the SIM Card
#2,3,4
of IFC3
Yes
3.0V
00?
00
No
No
Check UCP200,C311
Check UCP
200,
U301
END
+SIM_VCC_3.0V
R312
+SIM_VCC_3.0V
G
SIM_IO
SIM_RST
SIM_CLK
C359
C362 C363
VSIM
SIM_IO
SIM_RST
SIM_CLK
C364
IFC300
1
1
2
2
3
3
10
6
6
5
5
4
4
GG
7GG89
9-5
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Flow Chart of Troubleshooting
9-4.
Microphone Part-Phone MIC
Phone MIC does not work
Yes
Check the connection
of MIC
OK
Check MIC_BIAS_2.15V
When UCP200 operates
(
and call is connected
Check thecomponents
which are connected to
MIC_BIAS_2.15V
)
OK
Not OK
Not OK
Not OK
older MIC again
S
older C321 again and check U301
S
Solder TA300, R302 again
OK
Check the circuit
of MIC PART
OK
Is Phone MIC working?
Yes
END
Not OK
No
older C304,C305, C309, L300, L301,
S
and C305 again
Replace MIC
9-6
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This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
MIC300
0
0
3
D
Z
1
0
3
D
Z
C301
C305
C312
Close to microphone
L300
L301
+MIC_BIAS_2.15V
TA300
R302
R308
Close to MCP
C304
C309
C306
C302
MIC_P
C307
MIC_N
C313
9-7
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Flow Chart of Troubleshooting
9-5.
Microphone Part-Earphone MIC
Earphone MIC does not work
Yes
Check the connection
of IFC600
OK
Check JACK IN is low
when ear jack is inserted.
OK
Not OK
NotOK
older pin
S
older IFC600, R608 again
S
of IFC600 again
3, 4
Check MIC_BIAS_2.15V
When UCP200 operates
(
and call is connected
Check the circuit
of EAR MIC
Is Earphone MIC working?
END
)
OK
OK
Yes
Not OK
Not OK
No
older C332 again and check U301
S
older C307, R303, R319 and C327
S
Repeat the sequence
again
9-8
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TA300
Flow Chart of Troubleshooting
IFC600
EARMIC_P
EARMIC_N
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
NC
26
NC
27
NC
V_BATT
R606
V_EXT_CHARGE_5.0V
VBUS_5V
C323
C326
C334
L302
L303
R303
USB_D+
USB_D-
C319
C324
C329
PCM ot esolCFI ot esolC
C320
AUXMIC_P
C327
C328
AUXMIC_N
C331
R600
R603
R601
R602
C600
L600
FM_ANT
EARMIC_P
EARMIC_N
EAR_SWITCH
EAR_ADC
R605
F600
GND
GND
OUT1
OUT2
OUT3
OUT4
5
6
7
8
JACK_IN
TXD1
RXD1
AUX_ON
1
IN1
2
IN2
3
IN3
4
IN4
910
L603
L604
6
1
4
5
ZD600
2
3
A
ZD601
ZD602
L605
T
T
T
J
J
J
_
_
_
1
1
N
D
D
O
X
X
_
T
R
X
U
9-9
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
C605
C606
R607
R608
C607
EARSPK_R
EARSPK_COM
EARSPK_L
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