
Flow Chart of Troubleshooting
9-2
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Flow Chart of Troubleshooting
9-3
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This Document can not be used without Samsung's authorization

故障排除流程图
9-1-2 手机部分
手机电源开启但不运作
检查电池电压是否大于 3.5V?
检查如下电压:
C404 是 2.7V
C416 是 1.2V
C426 是 1.8V
检查 C419 是否为 2.6V
检查 U302 的管脚 1 是否为高电平?
更换电池
检查 U401 及相关电路
检查 U401
检查 U302 及相关电路
检查 C420 是否为 2.6V
检查 TP_TCXO_EN 是否为高电平及
C423 为 2.85V
检查 R408 是否为高电平
检查初始化操作
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。
检查 U401
检查 U401 及相关电路
检查 UCP300 及相关电路
9-4

Flow Chart of Troubleshooting
9-5
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Flow Chart of Troubleshooting
9-6
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This Document can not be used without Samsung's authorization

9-2. 初始化
XTAL_12MHZ_IN / OUT 是否正常?
初始化失败
AP_JTAG_nRST_IN = “高电平”?
检查 R815 的 CLK
好
检查 32 字节数据信号及存储器
(UCP800)
结束
好
故障排除流程图
检查相关电路到复位
坏
更换 UCP301
坏
更换主板
9-7
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
9-8
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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting
9-10
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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting
9-12
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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting
3
4
S
S
S
S
V
V
7
H
BICKB
CSN|CAD0
CCLK|SCL
CDTI|SDA
CDTO
LIN1||IN1+
LIN2|IN2+
LIN3|IN3+
LIN4|IN4+
LOUT1|RCP
LOUT2
LOUT3|LOP
RIN1|IN1RIN2|IN2RIN4|IN3RIN4|IN4-
ROUT1|RCN
ROUT2
ROUT3|LON
2
1
S
S
S
S
V
V
1
8
9
F
E
B
J6
H6
H8
J2
A2
A3
A4
B5
A7
B9
B6
B2
B3
B4
A5
B7
C9
A6
C521
C522
C523
C524
C526
C527
C528
C529
C530
C533
FM_SCL
FM_SDA
MAIN_MIC_P
RADIO_L
SUB_MIC_P
MSM_SPK_P
RCV_P
MSM_MIC_P
RADIO_R
SUB_MIC_N
MSM_SPK_N
RCV_N
CODEC_OUT_
MSM_MIC_N
KEY_MIC_N
I2C
H4
MCKI
J4
MCKO
A1
MDT
B1
MPWR
C8
MUTET
H1
I2S_SDO
BT_PCM_DO
I2S_SDI
BT_PCM_DI CODEC_OUT_L
BT_PCM_SYNC
I2S_SYNC
AUDIO_EN
2
3
5
C
SDTI
J8
SDTIA
G1
SDTIB
H2
SDTO
G9
SDTOA
F2
SDTOB
H9
SYNCA
F1
SYNCB
J3
LRCK
H3
PDN
A9
TEST
C
C
C
N
N
N
3
2
1
C
9-14
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Flow Chart of Troubleshooting
9-15
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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting
9-17
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization