Samsung Z140 Service Manual Trouble Shooting
7. Flow Chart of Troubleshooting
7-1. Power On
' Power On ' does not work
Yes
Check the Battery Voltage
is more than 3.3V
Yes
U500PIN57(PS_HOLD)
C536(VREG_MSMC) =
=2.6V?
Yes
Check the Clock at
OSC501=32KHZ
Yes
1.375V?
Yes
No
Change the Battery
No
Check the PMIC related to PS_HOLD
No
Resolder OSC501
No
Check the PMIC
C537(VREG_MSME) = 1.8V?
C522(VREG_MSMP) = 2.8V?
C523(VREG_MSMA) = 2.8V?
C515(VREG_TCXO) = 2.8V?
Yes
Check for the clock at
C422= 19.2MHz
Yes
Check the initial operation
Yes
END
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No
Check the PMIC
No
Check the clock generation circuit
(related to OSC200)
7-1
Flow Chart of Troubleshooting
Power On
3.3V
< USIM Socket >
C540
C539
C544
C538
3
2
ZD500
GND1IO
SIM
CLOCK
VCC
NC
6
5
4
VREG_USIM_3.0V
PMIC_SBCK
PMIC_SBST
PM_INT_N
PMIC_SBDT
R508
R509
1
6
6
1
2
5
5
2
4
3
4
3
G
G
G
G
0
1
9
7
8
CN500
PS_HOLD
JIG_ON
R510
1
2
D501
3
CBL_PWR_N
RESET_N
SIM_RST
SIM_CLK
SIM_IO
USB_OE_N
USB_SEO
USB_D_M
USB_DAT
USB_D_P
ON_SW
T
0
5
A
0
B
S
G
E
TCXO_OUT
C513
AMUX_OUT
TCXO_EN
REF_OUT
VF
P
N
O
2
1
R514
G501
C508
C574
C573
OSC501
SLEEP_XTAL_IN
VREG_ADC
R522
TCXO
VCHG
C578
R503
USB_VBUS
G502
G503
G504
2
7
5
C
< Power Management IC >
R505
R519
R507
TP507
TP505
TP506
1
C547
C546
C548
C549
C550 C552
C551
C553
C554
C562
C563
C541
C542
C543
VREG_BT
VREG_MSME
VREG_USIM
VREG_USB
VREG_MSMC
VREG_MSMP
1.375V
2.85V
2.6V
1.8V
3.0V
TP508
1
5
R
49
47
VREG_MSMA
2.6V
5
8
6
8
7
8
C545
VREG_YMU
2.85V
59
MSM_INT_N
D
N
G
C
N
C
N
VDD_MAIN
83
VREG_SYNT
VREG_RFTX
VREG_RFRX
2.85V
2.85V
2.85V
26
34
40
SBCK
VDD_WLAN
VDD_RF
71
65
VREG_TCXO
2.85V
9
SBDT51SBST
RUIM_CLK38RUIM_IO
RUIM_M_CLK30RUIM_M_IO
RUIM_M_RST43RUIM_RST
PON_RESET_N
VDD_MSMC
VDD_MSME
VDD_SPKR
VDD_RUIM
VDD_MSM
VDD_ANA
VDD_PA
33
54
52
35
29
41
77
C536
C517
C537
C518
C516
C520
C521
C522 C523
VBATT_PMIC
C526
C527
C514
C577
C528C524
C529
Power
C530
C531
C532
Voltage
C533
C515
TP503
TP502
TP501
TP504
17
20
19
24
57
68
66
USB_DAT
USB_D_M
USB_D_P18USB_ID11USB_OE_N13USB_SE0
KPDPWR_N
PS_HOLD
CBL0PWR_N
CBL1PWR_N
SPKR_OUT_M
SPKR_OUT_P
FLSH_DRV_N
KPD_DRV_N
LCD_DRV_N
GP1_DRV_N
SPKR_IN_M
VIB_DRV_N
SPKR_IN_P
SPKR_BYP
74
78
76
79
75
23
22
25
21
8
C509
55
53
45
80
70
72
44
1
TCXO_EN58TCXO_IN
TCXO_OUT
SLEEP_CLK
REF_OUT
AMUX_IN282AMUX_OUT
REF_ISET
REF_GND
REF_BYP
63
62
61
C511
R506
ADC_BYP
AMUX_IN1
XTAL_IN46XTAL_OUT
VREG_RFRX167VREG_RFRX2
VREG_MSMA
VREG_WLAN
VREG_TCXO
VREG_SYNT
VREG_RFTX
73
81
84
64
56
69
R504
C506
C505
15
48
60
5
7
4
USB_CTL_N
VBACKUP6VBAT2VCHG
VCOIN
ISNS_M
BAT_FET_N
CHG_CTL_N
VREG_MSMC
VREG_MSME50VREG_MSMP
VREG_RUIM
VSW_MSMC
VSW_MSME
VREG_MMC
VREG_USB
VREG_PA
42
10
31
37
32
36
28
39
L501
L502
C502
VBATT_PMIC
16
3
USB_VBUS
ISNS_P
PM6650
U500
VREG_5V
VSW_PA
VSW_5V
14
12
27
R500
R501
C500
C501
5
R
5
1
6
1
5
R
VREG_USIM_3.0V
7
1
5
R
VREG_YMU_2.85V
VREG_RFRX_2.85V
VREG_TCXO_2.85V
VREG_MSMC_1.375V
VREG_MSME_1.8V
VREG_USB_3.3V
VREG_MSMP_2.6V
VREG_MSMA_2.6V
VREG_BT_2.85V
VREG_RFTX_2.85V
VREG_SYNT_2.85V
R518
7-2
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
D2(0:15)
D2(10)
D2(11)
D2(12)
D2(13)
D2(14)
D2(15)
F700
OUT
IN
D2(0)
D2(1)
D2(2)
3
D2(3)
4
D2(4)
D2(5)
D2(6)
D2(7)
4
D2(8)
D2(9)
3
4
3
4
5
1
OUT
IN
6
2
OUT
IN
7
IN
OUT
8
G
G
91 0
F701
OUT
IN
5
1
OUT
IN
6
2
OUT
IN
7
3
IN
OUT
8
G
G
91 0
F702
OUT
IN
5
1
OUT
IN
6
2
OUT
IN
7
IN
OUT
8
GG
9
10
F705
OUT
IN
5
1
OUT
IN
6
2
OUT
IN
7
IN
OUT
8
G9G
10
VBATT_LCD
1
0
7
L
3
2
0
0
7
7
C
C
< LCD Connector >
VREG_MSMP_2.6V
2
0
7
L
7
2
7
C701
C
CN701
1
1
3
3
5
56
7
7
9
9
10
11
11
12
13
13 14
15
15
16
17
17 18
19
20
19
21
22
21
23 24
23
24
25
25 26
27 28
27
28
29
30
29
31 32
31
32
33
33 34
35 36
35
36
37
37 38
39
39
40
VREG_MOTOR
2
2
4
4
6
8
8
10
12
14
16
18
20
22
26
30
34
38
40
3
2
1
D700
3
0
7
L
4
0
7
C
U615
2
IN 3
OUT
1
OUT
16
OUT
15
IN 6
OUT
14
IN 7
OUT
13
IN 8
OUT
OUT
12
IN
OUT
IN
D
11
C
N
C
N
N
G
21
22
17
MLCD_DIM
4IN
MLCD_CS_N
5IN
SLCD_RESET
SLCD_CS_N
WE2_N
A2(1)
9
MLCD_RESET
10
C610
C611
C617 C616
C620
SPK_N
SPK_P
C621
7-3
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
VREG_MSMP_2.6V
VPD
RESET_N
SLCD_RESET
W_DOG
MODE1
R307
R308
R309
TCXO_OUT
R302
R303
TP301
W_DOG
MODE0
MODE1
MODE2
7-4
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
7-2. Initial
Flow Chart of Troubleshooting
Initial Failure
Yes
U500 (PON_RESET_N) ="H"?
Yes
Is CN701 pin 14, 28
(LCD RESET) OK?
Yes
END
No
Check the PMIC
No
Check the LCD RESET Circuit
7-5
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
7-3. Sim Part
Phone can't ac cess SIM Card
CN500 pin 1 = "H"?
Yes
No
Check t h e SIM POWER
Yes
After Power ON,
Check SIM_CLK Signal on
TP506 in a few second
Yes
After S IM card insert,
TP507 = "H(SIM_ RS T)" ?
Yes
Check t h e SIM Card
Yes
END
No
Check the 32KHz OSC
No
Replace PBA
7-6
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
SIM
Flow Chart of Troubleshooting
VREG_USIM_3.0V
R508
C540
R509
C539
USB_OE_N
USB_DAT
3
CBL_PWR_N
USB_SEO
USB_D_P
USB_D_M
ON_SW
RESET_N
SIM_IO
SIM_CLK
SIM_RST
PMIC_SBDT
PMIC_SBCK
PMIC_SBST
PM_INT_N
6
5
4
D501
2
1
VREG_USIM_3.0V
CN500
C538
PS_HOLD
JIG_ON
R510
1
2
3
ZD500
IO
GND
SIM
CLOCK
NC
VCC
5
4
6
5
6
4
7
G
8
G
9
G
0
1
G
1
2
3
2
1
3
C544
TP501
TP502
TP503
TP504
TP505
TP506
TP507
TP508
1
1
5
R
13
USB_OE_N
17
USB_DAT
19
USB_SE0
11
USB_ID
18
USB_D_P
20
USB_D_M
24
KPDPWR_N
57
PS_HOLD
66
CBL1PWR_N
68
CBL0PWR_N
9
PON_RESET_N
30
RUIM_M_IO
26
RUIM_IO
34
RUIM_M_CLK
38
RUIM_CLK
40
RUIM_M_RST
43
RUIM_RST
47
SBDT
49
SBCK
51
SBST
59
MSM_INT_N
D
N
C
C
G
N
N
7
6
5
8
8
8
7-7
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
7-4. Speaker Part(Melody)
Speaker does not wor k
U607 p in7,32 = 2.8V?
Yes
No
Resolder or replace U500
Yes
Check the Clock signal
at Pin 1 of U607
(13.5MHz)
Yes
U607 p in 4 ≒ 2.8V?
(When U302 operate)
Yes
U607 p in 15
≒ Battery Volt ?
Yes
Is Speaker working?
No
No
No
No
Check the clock generation circuit
(related to U500 and U607)
Resolder U 301
Check the circuit related to
"SPOUT1/SPOUT2" signal
Change the S p eaker
Yes
END
7-8
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
Speaker
YMU_RESET
YMU_CLK
YMU_IRQ
R634
3
3
6
R
2
7
6
C
MEL_L
MEL_R
3
7
6
C
VREG_YMU_2.85V
1
3
6
R
4
7
6
C
< Melody IC >
7
8
5
5
6
6
C
C
5
7
6
C
1
2
3
4
5
6
7
8
9
4
3
G
CLKI
LED
/IRQ
/RST
NC
PLLC
VDD
VSS
VREF
G
5
3
OE2_N
A2(1)
YMU_CS_N
WE2_N
D2(0)
3
9
6
C
D2(1)
D2(2)
D2(3)
D2(4)
D2(5)
D2(6)
D2(7)
SPOUT2
SPOUT1
8
2
3
3
D
D
R
D
/
V
O
I
2
2
3
0
S
R
A
C
/
W
/
9
1
0
U607
O
N
O
M
/
L
R
-
-
T
T
U
U
O
O
P
P
H
H
0
1
3
1
2
Q
Q
Q
E
E
E
3
4
2
1
1
1
1
1
3
4
6
2
R
9
6
C
4
4
6
R
5
4
6
R
7
2
1
0
D
D
MTR
SPOUT2
D
S
S
D
SPOUT1
V
V
P
P
S
S
5
1
5
9
6
C
3
6
3
2
G
5
2
D2
4
2
D3
3
2
D4
2
2
D5
1
2
D6
0
2
D7
9
1
8
1
7
1
4
9
6
C
VBATT_4.2V
2
4
6
R
G
6
6
1
3
7-9
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
7-5. Microphone Part
Microphone does not work
Check the connection
from MIC
Check t h e circuit
from U301 to MIC
Yes
No
Resolder MIC
Yes
No
Resolder the R 603, R605, R610, R615, C643,
C644,
and C641
Yes
Check the MIC
Yes
END
Replace the MIC
7-10
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Loading...