9. 故障排除流程图
故障排除流程图
故障排除流程图故障排除流程图
9-1.基带
基带
基带基带
故障排除流程图
9-1-1.开机
开机
开机开机
“开机”不起作用
检查电流消耗是否超过 80m
检查 VBAT 超过 3.45V
检查INIT_PWR是否从低电
压至高电压
VCOREAP_1.2V = 1.2V
VFMEM_1.8V = 1.8V
VPLLAP_1.8V = 1.8V
CLK32K_PM = 32K 方波
MAXTALI = 19.2M
检查初始操作
重新下载
电池充电
检查初始操作
故障#1
检查U403
故障#2
检查OSC401和 OSC801
9-1
三星所有—内容可能有变动,恕不另行通知。
未经三星允许,不得使用本文件。
Flow Chart of Troubleshooting and Circuit Diagrams
Power On Problem
CLK32K_PM
VCOREAP_1.2V
C440
VBAT
VFMEM_1.8V VBAT
C429
VBAT
C442
VFUSE_2.5V
#1
AP_PM_SDA
AP_USB_IT
CLK32K_BT_RADIO
C432
VPLLAP_1.8V
C435
VAUX_2.8V
L402
L404
VBAT
K6
GPO2
H7
SDA
D2
MASTER_CLK
H8
USBINTN
A1
CLK32K_IN
K3
CLK32K
A4
VBAT_VIO_VMEM1
B4
VBAT_VIO_VMEM2
A2
B3
A3
VLX_VIO_VMEM1
C4
VLX_VIO_VMEM2
A5
VIO_VMEM_FB
D9
VBAT_VCORE1
D10
VBAT_VCORE2
B10
VMINUS_VCORE1
C9
VMINUS_VCORE2
C10
VLX_VCORE1
D8
VLX_VCORE2
A10
VCORE_FB
C7
VBAT_VPLL_ANA
A7
VANA
A8
VPLL
A6
VAUX
B6
VBAT_VAUX
C444
C
4
0
5
C445
C
4
0
6
1
3
4
C
C432
L402
R
4
8
2
2
8
3
R
C
4
2
9
R
2
4
4
4
1
C
4
C450
1
1
8
C
6
4
4
C
C
4
5
1
0
1
4
R
U403
9-2
C430
C812
C
4
4
4
U
8
0
1
C446
n
R
T
T
_
S
P
A
T
9
C440
L
4
0
4
9
0
4
C
4
1
2
0
8
U
C
C
4
3
5
D
8
0
1
C
C
4
4
1
4
0
5
7
6
1
1
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Flow Chart of Troubleshooting and Circuit Diagrams
Power On Problem
VFMEM_1.8V
R415
C443
#2
CLK32K_OSC_OUT
OSC401
SG-3040LC(32.768KHZ)
1
VIO
C
C
C
N
N
N
23
4
58
VFMEM_1.8V
U401
2
3
1
NC
A
GND
VCC
NC
6
5
4
Y
CLK32K_PM
NC7SV17L6X
R418
12
VCC
7
OUT
C
C
C
C
C
G
N
N
N
N
N
11
910
6
CLK32K_OSC_OUT
0
4
3
R
4
2
7
R
1
4
0
C
R
1
4
1
0
0
R
R
8
1
3
1
2
4
1
C
4
1
8
R
8
3
1
R433
U
S
R314
S
3
7
O
R
4
1
5
2
0
3
2
O
U409
4
R
6
3
4
R
4
4
3
C
C
4
3
4
1
C
4
R
4
3
8
R
C
4
0
7
D402
3
8
3
9
R
4
0
4
L
4
C
4
0
3
4
C
3
3
R425
8
R
R423
4
3
1
R
4
5
1
C
R426
4
2
8
R
R413
1
2
4
R
T
R
4
0
1
C452
U406
4
3
8
R
T
P
3
1
0
9-3
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故障排除流程图
9-1-2.系统初始化
系统初始化
系统初始化系统初始化
检查 INIT_PWR是否由低电
CLK32K_PM = 32K 方波
初始化故障
压至高电压
VCOREAP_1.2V = 1.2V
VFMEM_1.8V = 1.8V
VPLLAP_1.8V = 1.8V
MAXTALI = 19.2M
检查 CP_ON_EN上是否由
高电压至低电压
VSD2_1.8V = 1.8V,
VSD1_1.35V = 1.35V
VPLL_1.35V = 1.35V,
VIO_2.62V = 2.62V
OSC301 = 32KHz
CLK26M_RF = 26MHz
液晶显示屏是否正常?
声音正常?
结束
三星所有—内容可能有变动,恕不另行通知。
初始化故障#1
电源开通故障#1
电源开通 故障#2
初始化故障#2
初始化故障#3
初始化故障#4
检查液晶显示屏部分
检查音频部分
9-4
未经三星允许,不得使用本文件。
Flow Chart of Troubleshooting and Circuit Diagrams
INIT Problem
VBAT
TR401
FDN338P
R438
C451
S2
G1
D3
#1
1
2
VBAT
5
U410
3
TC7S08FUTE85L
VBAT
C452
4
4
1
0
0
4
V
INIT_PWR
U408
4
OUT
GND
3
NC
VDD
R3111Q271C-TR-F
1
2
C455
C
4
3
4
1
2
0
C
4
3
2
R
U409
U
4
0
8
C437
C433
R
3
0
1
6
D403
C
7
1
0
4
D
V
CAM_KE
3
4
C
3
0
7
1
1
8
U
C
C830
8
4
8
R
R847
R
3
D402
4
3
8
C
3
9
4
C
3
4
3
3
8
8
R
R
1
1
R426
8
R413
3
L
4
0
3
T
R
C452
1
2
4
R
U406
R425
R423
4
3
R
4
5
C
4
3
8
R
U410
L
4
0
1
V401
4
4
2
R
R
0
1
T
P
3
1
0
C
1
0
R
4
2
4
R
9
4
2
2
8
2
C
4
5
9-5
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This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting and Circuit Diagrams
INIT Problem
#2
1
Q401
DTC144EM
2
0
7
C
D
H
VBAT
R412
WDOG
3
2
RTC_OUT
CP_PM_INTCP_ON_EN
PM_RSTn
PM_VCXO_EN
3G_VDDCORE_HI
CP_PMU_RST
CP_RST
CP_BP_SCL
CP_BP_SDA
3
1
4
0
4
C
7
V
2
1
7
V
4
8
2
C
6
4
0
1
R
5
1
8
C
Q401
7
R
C520
U
5
1
0
1
5
R
1
0
1
5
0
5
R
3
2
8
8
1
0
4
8
R
R
9
5
0
3
8
8
R
R
R829
4
U
R
8
4
0
9-6
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Flow Chart of Troubleshooting and Circuit Diagrams
INIT Problem
#3
VPLL_1.35V
VAUX_2.9V
VSD2_1.8V
VIO_2.62V
R409
C416
C417
C419
C415 C427
C414
L401
VAUDIOB_2.5V
VAUDIOA_2.5V
C422 C423C418
C421
VSD1_1.35V
VEDGE_1.5V
C424
VRF_2.9V
C425
VSIM_2.9V
C426C420
C436
C433
C437
D401
C434
C438
R408
C
4
5
4
6
3
4
R
4
4
3
4
1
5
C
R419
2
4
2
C
4
2
3
C
R
4
C
0
4
4
0
7
C
D402
4
3
8
C
4
3
9
C
3
4
3
3
R425
8
8
R
R
R423
C439
4
0
1
2
0
4
C
C
C
C
4
1
6
7
0
4
R
8
4
1
4
1
R
4
4
0
C
9
C424
4
1
9
C
C420
6
2
4
C
C421
U402
L
4
0
3
L
4
0
1
C428
R406
R405
1
C425
4
0
C
4
1
4
4
0
8
C
D
2
0
6
C
S
C
4
2
7
4
0
3
R
1
0
7
V
C437
C452
1
2
4
R
U406
V401
C433
6
4
3
C
CAM_KE
9-7
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This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting and Circuit Diagrams
INIT Problem
#4
C104
CLK26M_CP
CLK32K_CP
CLK26M_AFC
5
6
7
8
R316
C320
CM315
OSC301
C322
VTCXO_2.8V
R101
4
1
T
C
N
C
V
O
C
NC
V
NC
NC
NC
T
D
TCS101
U
N
O
G
1XTV26000UCJ
2
3
C103 C105
CLK32K_OSC_OUT
C106
CLK26M_RF
C310
R319
C323
C317
1
7
R
3
1
C320
6
0
1
1
S
C
1
3
R
0
3
6
0
3
C
1
8
3
R
S
O
3
0
1
H
T
3
2
2
3
0
3
R
C
2
0
3
P
T
9-8
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This Document can not be used without Samsung's authorization
R208
S
2
0
1
T
R
4
0
1
C
C
1
0
5
C
1
1
0
0
1
6
R
C
C
8
1
1
0
2
3
C
故障排除流程图
9-1-3. SIM 卡部分
卡部分
卡部分卡部分
液晶显示屏显示“插入SIM卡”
拆卸SIM卡后,检查CN701的
在CN701的管脚# 13、 # 14、#
触点,是否受到损坏?
15、 # 16是否有信号存在?
检查SIM卡
结束
三星所有—内容可能有变动,恕不另行通知。
未经三星允许,不得使用本文件。
SIM卡故障#1
更换CN701
SIM卡故障#2
检查与SIM卡信号相关的部件
9-9
Flow Chart of Troubleshooting and Circuit Diagrams
SIM Problem
#2
CN701
NDTF-6S8M-311
SW-B
SW-A
1
2
3
4
5
6
7
8
C1
C5
C2
C6
C3
C7
NC
NC
NC
NC
NC
NC
NC
VSIM_2.9V
R717
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
C706
C707
C708
C705
SIM_RST
SIM_CLK
SIM_IO
8
1
3
C
4
1
1
C
8
1
8
R
R
8
1
7
R
7
2
3
U
8
0
2
2
2
7
R
C
7
0
4
R
7
2
1
9
1
7
R
0
2
7
R
8
1
7
R
R410
5
7
0
1
7
7
8
6
C
R
0
0
7
7
C
C
1
0
7
N
C
C707
RFS101
9-10
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This Document can not be used without Samsung's authorization
故障排除流程图
9-1-4.充电部分
充电部分
充电部分充电部分
异常充电部分
检查IFC501上的管脚# 19、
20上VEXT_5V = 5V?
检查U407上的管脚#6、#4、#5上
是否为低电压?
结束
充电故障#1
更换充电器或检查IFC601
充电故障#2
检查U407
9-11
三星所有—内容可能有变动,恕不另行通知。
未经三星允许,不得使用本文件。
Flow Chart of Troubleshooting and Circuit Diagrams
Charging Problem
VFMEM_1.8V
R429
TA_nDET
CHG_ING_N
#2
R430
C453
R434
R435
1
USBIN
2
IUSB
ITERM
4
PWR
5
CHRG
U407
BATDET
GND
11
10
DCIN
9
BAT
83
IDC
7
6
EN
LTC4078X
R436
VEXT_5.0VVBUS_5.0V
VBUS_5.0VVBAT
R427
BP_CF
R433
R437C454
TA_OFF
C453
R434
R435
2
9
0
5
8
3
0
R
U
4
2
2
4
C
0
7
3
4
2
C
4
R
4
R
2
7
4
R
R433
3
7
4
R
6
9-12
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This Document can not be used without Samsung's authorization
故障排除流程图
9-1-5.话筒部分
话筒部分
话筒部分话筒部分
话筒不起作用
检查话筒的焊接状态
检查话筒偏压
VMIC_BIAS_3.0V = 3V
话筒正常吗?
结束
话筒故障#1
更换或重新安装话筒板
话筒故障#2
重焊或更换R603、C604
话筒故障#3
检查U301、U502
9-13
三星所有—内容可能有变动,恕不另行通知。
未经三星允许,不得使用本文件。