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NWZ-A826/A826K/A828/A828K/A829
NWZ-A826/A826K/A828/A828K/A829
2727
5-10. SCHEMATIC DIAGRAM - MAIN Board (6/7) -
• 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: IC453 on the MAIN board cannot exchange with single. When IC453
on the MAIN board is damaged, exchange the entire mounted board.
IC B/D
IC B/D IC B/D
11
MAIN
BOARD
(7/7)
12
MAIN
BOARD
(1/7)
RB520S-30FJTE61
D451
IC454
TC7S14FU(TE85R)
1
NC
2
3
GND
4
5
VCC
47k
R460
0.1
C456
0.01
C455
0
R456
150
R463
ANT451
C453
1.8p
470k
R462
SSM3K15FV(TL3SONYZ)
Q451
S
SSM3K15FV(TL3SONYZ)
Q452
S
150
R464
470k
R465
UGNZ4-GA5A
IC453
(Chip Size Package)
CSP
A3
X_IN
A4
UART_RTS
A5
PIO7
A6
GND
B1
UART_TXD
B2
UART_RXD
B3
UART_CTS
B4
PIO8
B5
VCC_IO
B6
VCC
C1
PCM_OUT
C2
PCM_SYNC
C3
GND
C4
AIO0
C5
RESETB
C6
VCC_18V
D2
PCM_IN
D3
PIO5
D4
PIO0
D5
PIO3
D6
GND
E1
USB_DN
E2
USB_DP
E3
PIO4
D1
PCM_CLK
E4
PIO1
E6
RF_IO
F4
PIO2
F1
GND
F2
PIO6
F3
NC
F5
GND
E5
GND
TC7PA53FU(TE85L.F)
IC452
1
CH1
2
GND
3
CH0
4
COMON
5
VCC
6
A
TC7PA53FU(TE85L.F)
IC451
1
CH1
2
GND
3
CH0
4
COMON
5
VCC
6
A
UART_TXD
VDD_UNREG_J
BT_LEDCTL1
BT_LEDCTL2
VDD_GP5
VDD_BT1.8_
BT_XRST
UART_RXD
UART_XCTS
UART_XRTS
DGND
VDD_GP1_FB_J
0.1
C451
DBG_UART_RXD
DBG_UART_TXD
UART_SEL
0
R457
2.2M
R459
2.2C457
100p
C459
10kR461
BT_DET
0
R467
470k
R468
0
R469
0
R470
2.2
C458
470kR471
SSM3J15FV(TL3SONYZ)
Q454
S
1k
R474
JL001
JL002
JL003
JL004
JL005
0
FB451
JL006
JL007
SMLA13BDTT86ST
(BLUETOOTH)
D452
4.7nH
L451
MULTIPLEXER
IC451
MULTIPLEXER
IC452
(6/7)MAIN BOARD
IC453
BLUETOOTH CONTROLLER
IC454
LED DRIVE
TB451
Q451, 452
LED DRIVE
Q454
B+ SWITCH
(CHASSIS)
A
795
E
426
F
13
D
C
8
B
(Page 28)
(Page 22)