Harman Kardon ONYX STUDIO 4 - Page 13

7-3
DC-DC 19V to 4.7V
U5
DC_IN_19V
D5
1N4148WS
CHR_4V7
FB3 600/1A
1
5
VIN
BOOST
C50
SW
6
FB
3
C47
0.01uF/50V/X7R
L3
D6
SS24/40V/2A
R46
4.7uH/2.35A
R47
100K/1%
FB
TP9
R45 100K
4
EN
C51 C52
NC
DC_DC LMR12010X
C61
R53
20K/1%
NC
CHARGE FOR BATTERY
CHR_4V7
U6
bq24090
1
IN OUT
10
2
ISET TS
9
BAT TP8
NTC
SYS_3V3
3
VSS /CHG
8 CHG_status
CHG_status 7
4 7 C56 C57 C58
R48
PRETERMISET2
5
/PG
NC
6
C55
680/1%
TP10
CHG_status
R49
0
R52
0
BATTERY
BAT
3.7V 5A
CN1
NTC
R44 1.1K/1%
3
3
2
2
C59 C60
1
1
3PIN/7.92mm
R54
130K/1%
Battery Testing
refer to charge3
DC Insert Test
DC_IN_19V
BAT
TP11
R56
220K
R55 0
R57
BAT_DET
BAT_DET 7
DC_DET
DC_DET
7,8
300K/1%
R58
C62
100K/1%
10uF/6.3V/X5R
R59
39K/1%
C63
100pf/16V/X7R
Circuit Diagram:Main board & CN board
A B C D E
1 1
2 2
3 3
4 4
A B C D E
0.1uF/16V/X7R
330pF/50V/X7R
1000pF/50V/X7R
0.1uF/16V/X7R
10UF/6.3V/X5R
0.1uF/16V/X7R
R51 1K/1%
C54 0..1uF/16V/X7R
C53 10UF/6.3V/X5R
0.1uF/16V/X7R
10UF/6.3V/X5R
1000pF/50V/X7R
C49 100nF/25V/X5R
C48 10uF/25V/X5R
2
GND
11
GND
10K R50