Read Harman Kardon ESQUIRE 2 Service Manual online
A
D
C
B
1
6
A
B
C
D
2
3
5
4
3.7V/3200mAh Li-lon
ILIM=45/R168=3A
ICHG=2400/(R152*R169)=1.76A
ICHG=2400/(R152*R169)=1.76A
Optional
C147
4.7uF
10V
C148
100nF
C143
NC
25V
C144
2.2uF
C145
2.2uF
R164
4.12K
1%
L19
1.5uH
FB
3
10
0603
1%
C141
4.7uF
C149
1uF
R157
453K
1%
R160
910K
1%
R163
910K
1%
1%
R167
390K
1%
1%
R1
51
120K
R1
50
100K
R149
NC
0402
TP49
TP50
D9
5.6V
R154
21.5K
1%
R158
5.1K
1%
1%
R161
1K
0402
1%
R162
1K
0402
1%
R168
15K
1%
R169
68.1K
1%
C146
10uF
25V
C151
330nF
R153
33
0402
5%
R156
33
0402
5%
R166
10K
1%
C150
47nF
R165
0
0402
1%
C172
100nF
C142
22uF
10V
R152
0.02
1206
1%
R1
93
51K
5%
R194
NC
0402
R195
NC
0402
R196
0
0402
1%
1
2
3
4
5
J4
1
N/C
2
CHG
3
BOOST
4
CSP
5
BATT
6
AGND
7
OLIM
8
ISET
9
NTC
10
FB
11
ACOK
12 REG
13
TMR
14 PWIN
15 ILIM
16 VCC
17
VB
18 EN
19 MODE
19 MODE
20 VIN
21
SYS
22
SW
23
PGND
24
PGND
U15
MP2637
C154
47nF
R177
NC
0402
R155
15K
1%
R159
5.1K
1%
L18
0.12
1%
R201
NC
0402
R202
NC
0402
1
+IN
2
-VS
3
-IN
4
OUT
5
+VS
U18
NC
C165
NC
0402
R203
NC
R208
NC
0402
R210
NC
R209
NC
0402
1
G
2
S
3
D
Q5
NC
C166
NC
0402
C170
NC
0402
R211
NC
0402
V_BATTERY
USB_5V_IN
V_BAT_ADC
VUSB_IN
V_BAT_ADC1
ACOK
VSYS_5V
USB-D-
USB-D+
D-
D+
VSYS_5V
CHARGE_EN
CHG
ACOK
VUSB_IN
D+
D-
SCHEMATICS DIAGRAM - MAIN BOARD_CHARGER PART
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