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4-12
Samsung Electronics
Troubleshooting
C
C
30
2
10
00
0n
F
6.
3V
C
30
1
10
00
0n
F
6.
3V
C
30
5
10
00
0n
F
6.
3V
C
31
1
10
0n
F
C
31
0
22
nF
C
31
4
47
00
nF
C
31
6
10
00
0n
F
C
31
8
47
00
nF
C
31
3
47
00
nF
C
31
5
47
00
nF
C
30
3
10
0n
F
C
30
7
10
0n
F
C
30
6
10
0n
F
C
30
8
10
0n
F
C
30
0
10
00
nF
6.
3V
C
31
2
10
0n
F
C
32
0
10
00
0n
F
C
30
4
10
0n
F
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
INT_BATT
P3.0V
INT_BATT
P1.8V
P3.0V
P1.1V
INT_BATT
P3.0V
P5V
INT_BATT
V_DDCON
P3.0V
V_DDCON
V_DDCON
V_DDCON
P5V
INT_BATT
INT_BATT
INT_BATT
P3.0V
P5V
CON300
2P,SMD-A
1
2
HOLD
PWR_IN_CPU
PWR_IN_DDCON
FULLCHG_DET
CPU_RST
LED_A+
LED_C-
DCDC_EN
EXT_PWR
BATT_LEV
Q303
KRC408V
Q305
KRC408V
R321
1K
R
30
7
20
0K
R
30
8
10
0K
R
30
2
10
K
R
31
1
12
0K
R
32
4
47
K
R
30
1
47
K
R
31
9
10
K
R
32
2
47
K
R
31
4
47
K
R
31
8
47
K
R
30
0
47
K
R
30
5
4.
3K
O
H
M
R
30
4
3.
6K
R
32
6
47
K
R
31
7
47
K
R
31
0
24
0K
R
30
9
10
0K
R
30
6
20
K
oh
m
R
32
5
24
oh
m
R
31
2
15
0K
R
30
3
12
0K
R
31
6
47
K
R313
47K
R
32
0
47
K
R315
10Kohm
L302
4.7uH
L300
4.7uH
L301
4.7uH
CHG_DLIM1
CHG_DLIM2
CHARGE_SUSP
LED_CTL
DCDC_EN
COREV_CTRL
PWR_OFF
RTC_INT
PWR_IN_DDCON
D
30
1
R
B
55
1V
-3
0
S/W300
4V
1
2
3
4
S
/W
30
1
12
V
D
C
1
2
D300
KDS121V
D302
KDS121V
IC300
MAX8819
1
COMP4
2
FB4
3
OVP4
4
PG4
5
LX4
6
GND
7
EN4
15
CHG
16
PG1
17
LX1
18
PV13
19
LX3
20
PG3
21
DLIM1
22
F
B
2
23
F
B
3
24
E
N
12
3
25
P
V
2
26
LX
2
27
P
G
2
28
D
LI
M
2
12
C
E
N
10
S
Y
S
8
R
S
T
1
13
F
B
1
11
D
C
9
B
A
T
14
C
IS
E
T
L303
10uH
IC301
7WH74
1 CK
2 D
3 Q
4 GND
5
Q
6
CLR
7
PR
8
VCC
R323
9.1Kohm
Q302
EMD2
1
2
3
4
5
6
Q300
KRC857E
1
2
3
4
5
6
TP300
?
TP301
?
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
POWER Page, 7-3
CON800
IC400
IC600
IC301
IC300
IC602
IC701
CON300
IC800
MAIN PCB Bottom Page, 6-4
<Fig. 4-5>
1
3
1
3
1
2
2
3
2
Summary of Contents for YEPP YP-Q1
Page 13: ...3 4 Samsung Electronics MEMO ...
Page 45: ...6 6 Samsung Electronics MEMO ...