Read JBL CHARGE 2 (serv.man2) Service Manual online
A
A
B
B
C
C
D
D
E
E
1
1
2
2
3
3
4
4
3V-4.2V
Vref=1.2V
Vout=1.2V*(1+R419/R418)=5.16V
20mA
SYS_PWR_SHUTDOWN
LM_ISENB
LM_ISENB
SHUTDOWN_BOOST
AUX_SAVE
BOOST_FBB
Vout_12V
BAT_3V7
AMP_12V
VDD_5V
OPVCC
Vout_12V
Vout_12V
VDD_3V3
VDD_BAT_VCC
A
SYS_PWR_SHUTDOWN
SHUTDOWN_BOOST
AUX_SAVE
R85
10K/1%
R85
10K/1%
R96
1K
R96
1K
C53
1000pF/50V/X7R
C53
1000pF/50V/X7R
R61
36K
R61
36K
R72
330K/1%
R72
330K/1%
U5
LM3481
U5
LM3481
ISEN
1
UVLO
2
COMP
3
FB
4
AGND
5
FA/SYNC/SD
6
FGND
7
DR
8
VCC
9
VIN
10
R66
100K
R66
100K
C64
47nF/
25V/
KBX
C64
47nF/
25V/
KBX
R73
39K/1%
R73
39K/1%
C214
10uF/
16V/
X5R
C214
10uF/
16V/
X5R
C59
0.
1uF/
25V/
X7R
C59
0.
1uF/
25V/
X7R
C63
2200pF/
50V/
X7R
C63
2200pF/
50V/
X7R
R232
33
R232
33
C216
4.
7uF/
25V/
X7R
C216
4.
7uF/
25V/
X7R
R65
NC/56
NC/56
R65
NC/56
NC/56
R83
33K/1%
R83
33K/1%
R87
100K
R87
100K
C72
10U
F/
10V/
X7R
C72
10U
F/
10V/
X7R
C67
2200pF/
50V/
X7R
C67
2200pF/
50V/
X7R
D7
SVM1045V
D7
SVM1045V
1
2
3
R86
10K
R86
10K
R71
5.1K
R71
5.1K
R84
33K
R84
33K
C6
8
N
C
/30pF/
50V/
X7R
C6
8
N
C
/30pF/
50V/
X7R
R70
82K/1%
R70
82K/1%
R64
39K
R64
39K
R74
10K
R74
10K
C61
470nF/25V/X5R
C61
470nF/25V/X5R
C70
10uF/
16V/
X5R
C70
10uF/
16V/
X5R
R69
47K
R69
47K
Q29
N_2SK3018
Q29
N_2SK3018
G
D
S
C60
0.
1uF/
25V/
X5R
C60
0.
1uF/
25V/
X5R
C55
0.
1uF/
16V/
X7R
C55
0.
1uF/
16V/
X7R
C76
0.1uF/16V/X7R
C76
0.1uF/16V/X7R
U6
AS2910
U6
AS2910
VIN
1
GND
2
EN
3
ADJ
4
VOUT
5
C69
0.
1uF/
16V/
X7R
C69
0.
1uF/
16V/
X7R
C65
NC/5600pF/50V/X7R
C65
NC/5600pF/50V/X7R
R79
0.02ȍ/1%
R79
0.02ȍ/1%
R78
0.02ȍ/1%
R78
0.02ȍ/1%
C73
0.1uF/16V/X7R
C73
0.1uF/16V/X7R
C62
N
C
/330pF/
50V/
N
P0
C62
N
C
/330pF/
50V/
N
P0
C58
0.
1uF/
25V/
X5R
C58
0.
1uF/
25V/
X5R
C57
0.1uF/25V/X7R
C57
0.1uF/25V/X7R
R59
2.2
R59
2.2
Q17
NPN_3DG3904M
Q17
NPN_3DG3904M
Q16
AP92U03GM-HF
Q16
AP92U03GM-HF
G
4
D
7
S
2
S
1
S
3
D
8
D
6
5
D
R75
10K
R75
10K
R76
100K
R76
100K
R63
10
R63
10
C217
4.
7uF/
25V/
X7R
C217
4.
7uF/
25V/
X7R
C215
10uF/
16V/
X5R
C215
10uF/
16V/
X5R
R77
100
R77
100
C71
0.
1uF/
16V/
X7R
C71
0.
1uF/
16V/
X7R
C52
0.
1uF/
16V/
X7R
C52
0.
1uF/
16V/
X7R
L4
6.8uH/7A
L4
6.8uH/7A
+
CE4
220uF/35V
+
CE4
220uF/35V
R68
0
R68
0
R82
100K
R82
100K
+
CE3
220uF/
16V/
SM
D
D
+
CE3
220uF/
16V/
SM
D
D
R81
100
R81
100
D
S
G
Q15
AP2603
D
S
G
Q15
AP2603
2
3
4
1
5
6
C54
10uF/
16V/
X5R
C54
10uF/
16V/
X5R
R98
NC/100K
R98
NC/100K
Q18
NPN_3DG3904M
Q18
NPN_3DG3904M
C66
0.1uF/16V/X7R
C66
0.1uF/16V/X7R
7-4
7-4
Circuit Diagram - Main Board:Boost
Page 20 of 32
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