NWZ-A826/A826K/A828/A828K/A829
NWZ-A826/A826K/A828/A828K/A829
28
28
5-11. SCHEMATIC DIAGRAM - MAIN Board (7/7) -
• See page 32 for IC Block Diagrams.
Note 1:
When the MAIN board is replaced, format it according
to the “NOTE OF MAIN BOARD REPLACING” (refer
to page 4) of the servicing notes.
Note 2:
IC901 and IC902 on the MAIN board cannot exchange
with single. When IC901 and IC902 on the MAIN board
are damaged, exchange the entire mounted board.
IC B/D
4
MAIN
(1/7)
BOARD
BOARD
2
MAIN
(5/7)
BOARD
MAIN
(4/7)
1
BOARD
(1/7)
MAIN
3
BOARD
(5/7)
MAIN
5
BOARD
9
MAIN
(4/7)
BOARD
11
MAIN
(6/7)
IC B/D
0
0
3.7
3.3
3.7
0
0
0
0
3.7
2
3.7
2.9
2
2.9
1.8
2
0
3.3
3.7
0
2.7
2.7
3.7
3.7
0
0
3.7
2.9
0
TOTAL CURRENT
PLAY: 150mA
JL907
CN901
1
BATT +
2
BATT -
VCC_DCIN
VCC_VBUS
4.7uH
L902
4.7uH
L901
3300
R923
SSM3K15FV(TL3SONYZ)
Q901
S
TH901
150k
R922
0.1
C922
220k
R908
VDD_GP1_FB_J
USB_SUSPEND
CHG_XCHGEN
VCC_VBAT
VDD_UNREG_J
VDD_DDC3_J
VDD_DDC2_J
CHG_PEN2
CHG_XFLT
XCHG_DET
JL908
DGND
AGND
CHG_ICTL
10k
R920
22k
R919
C909
22
22
C910
220k
R910
470k
R911
10
C908
4.7
C902
4.7
C903
10
C904
10
C905
10k
R909
470k
R913
470k
R914
470k
R916
8200
R918
22
C912
0.1
C918
4.7
C919
10
C920
10
C921
10k
R926
68k
R927
0.01
C913
2.2
C914
1
C916
XC61GN3102HR
IC902
1
SS
2
OUT
3
IN
0.1
C917
CL910
CL911
CL912
CL913
CL915
CL916
0.001
C924
10
C925
0
R935
MAX8TG069
IC901
1
USUS
2
DC
3
USB
4
FB5
5
PV5
6
OUT5
7
PG2
8
LX2
11
FB2
12
/DOK
13
REG3L
14
BP
15
OUT4
16
PV4
21
SSKP
22
PV1
23
LX1
24
PG1
31
CISET
32
CT
41
EP
33
THM
34
BA
T
35
SYS
36
PEN1
37
CST2
38
/UOK
39
CST1
40
PEN2
9
PV2
10
/CEN
17
BVSET
18
GND
19
FB1
20
EN
25
PG3
26
LX3
27
PV3
28
VL
29
FB3
30
DISET
0
R931
0
R930
0
R928
R912
0
0
R901
0
R906
0
R907
R904
0
0
R929
FB852 0
VDR851
470p
C855
LINE_OUT_R
USB_DP
R855 47k
DBG_UART_TXD
CRD_DET
USB_DM
D851
RB060M-30TR
FB857
0
R853
1k
R851
1k
CRD_AD
LF851
DBG_UART_RXD
R857
470k
0.01
C854
LINE_OUT_L
0.47
C856
C853
100p
R858 10k
FB854
0
VDD_GP1_J
FB851 0
FB855
0
R859 1k
FB858
R862 10k
TXD_PUCTL
VDR852
CN851
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
VDD_UNREG_J
VCC_VBUS
(CHASSIS)
TB901
LITHIUM ION
STORAGE
3.7V 610mAh
BATTERY
IC901
POWER CONTROL
CHARGE CONTROL
IC902
VOLTAGE DETECT
2P
(7/7)
MAIN BOARD
D+
CRD_AD
GND
DCIN
VIDEO-IN/OUT/OPEN
AU_L_OUT
VIDEO-GND/GND
VIN
UNREG_OUT
(WM-PORT)
RXD/WAKE
D-
GND
RESERVE
USB_DET
DIGITAL_OUT/OPEN
22P
AU_COM
AU_R_OUT
AU_R_IN
GND
TXD/SLEEP
RESERVE(OTG)
AU_L_IN
12
2
B
3
10
E
4
9
5
6
D
C
A
7
F
G
H
8
1
11
TB851
1
C923
CL914
BT_PWRCTL
SSM3J15FV(TL3SONYZ)
Q903
470k
R932
100k
R933
TK63118BCB-G
IC903
A1 GND
A2
VCONT
B1
VOUT
B2
VIN
+1.8V REGULATOR
IC903
POWER ON/OFF CONTROL
S
VDD_UNREG_J
VDD_BT1.8_
(Page 22)
(Page 25)
(Page 26)
(Page 27)
(Page 25)
(Page 22)
(Page 26)
