User Guide

SAMSUNG Proprietary-Contents may change without notice
SGH-E316 Flow Chart of Troubleshooting and Circuit Diagrams
5-5
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4. Charging Part
(Picture 1)
The pin #17, #18 of CN200 is
TA_VEXT 뵃 5V?
Abnormal charging operation
The pin #2 of U104 is "low"?
Replace TA or Check CN200
Check the U104
Check the U105
END
No
Yes
Yes
Yes
No
No
The pin #3 of U105 is "low"?
The pin #5 of U104 is 3.2~4.2V"?
Check the U104
No
Yes
The ICHRG = 1V(during charging)
and 뵃 180mV(full charging)?
No
Solder again or change R168
Yes
CHARGING
R170
10K,1%
VBAT
R169
3K,1%
3
1
2
5
6
4
Q101
10V
10UF
C149
1
0
0
K
,
1
%
R
1
7
3
1
ISENSE
PROG
43
VCC
5
VSENSE
U104
DRIVE
6
GND
2
10K,1%
R168
C150
6.3V
10UF
Q102
1
3
2
10K,1%
R175
VBAT
1
4
U105
2
5
6
3
U106
47K
R167
1
0
0
K
,
1
%
R
1
7
4
TA_VEXT
CHG_ON
ICHRG
CHG_DET
JIG_ON
TA_VEXT
TA_VEXT
JIG_ON_IF