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NW-A805/A806/A808/NWZ-A815/A816/A818
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NW-A805/A806/A808/NWZ-A815/A816/A818
5-9. SCHEMATIC DIAGRAM – MAIN Section (6/6) –
• See page 28 for IC Block Diagrams.
(Page 25)
(Page 23)
(Page 24)
5
BOARD
MAIN
(2/6)
11
BOARD
MAIN
(3/6)
8
BOARD
MAIN
(4/6)
2
BOARD
MAIN
(1/6)
10
BOARD
MAIN
(5/6)
IC B/D
IC B/D
2.9
3.7
3.7
0
0
00
2.9
2.7
2.7
2.9
0
0 2.7
2.7
2.7
2.7
3.7
3.7
0
0
0
0
CL903
R911
470k
R906
3300
C905
0.068
IC901
MAX8677AETG
123456
789101112
13 14 15 16 17 18
19202122232425
R909 22k
R907
470k
C909
22
C904 0.1
IC903
MAX1557ETB
IN
1
GND
2
SS
3
OUT
4
XSHDN
5
D2
6
PGND
7
LX
8
INP
9
D1
10
11
PGND
C911
0.001
R915
33k
C903
0.1
VDD_DDCOUT20
R914
47k
VCC_DCIN
VDD_GP1
XCHG_DET
CHG_XFLT
C912
22
DGND
C906 0.1
C907
22
C902 0.1
C908
0.1
CHG_XCHGEN
CHG_PEN2
USB_SUSPEND
C913
22
R903
470k
R904
470k
R901
0
R912
8200
VCC_VBAT
TH901
CL904
CL905
CL906
VCC_VBUS
C901
10
C920
4.7
C910
0.1
R913
10k
VDD_UNREG
R902
0
CN901
2P
1BATT+
2BATT-
Q903
2SK3541T2L
R919
10k
CHG_ICTL
R921
220k
R922
220k
C917
22
C921
22
C915
22
R923
470k
L901
4.7
µH
R908
10k
CL901
CL902
XUSB_OK
CL907
CL908
CL909
CL910
1500
R905
33k
R910
VDD_UNREG
VDD_DDCOUT20
AGND
VCC_VBAT
DGND
AGND
DGND
DGND
VDD_UNREG
XCHG_DET
CHG_XFLT
CHG_XCHGEN
CHG_PEN2
USB_SUSPEND
CHG_ICTL
CHG_ICTL
CHG_XFLT
CHG_XCHGEN
XUSB_OK
XUSB_OK
CHG_PEN2
XCHG_DET
USB_SUSPEND
BAT
BAT
USB
USB
TSET
USUSS
/DONE
DC
DC
/CEN
PEN1
PEN2
GND
/FLT
/UOK
/DOK
SYS
/CHG
SYS
PSET
VL
GND
CT
ISET
THM
(6/6)MAIN BOARD
IC901
POWER CONTROL,
IC903
DC/DC CONVERTER
A
1012
B
11
C
78
F
9643
G
D
5
E
CHARGE CONTROL
LITHIUM ION
STRAGE BATTERY
3.7V 610mAh
S
CHARGE CONTROL
(Page 26)
(Page 22)
Note: When IC901 and IC903 cannot exchange with single. When IC901 and IC903 are
damaged, exchange the entire mounted board.