Sony NW-A805 / NW-A806 / NW-A808 / NWZ-A815 / NWZ-A816 / NWZ-A818 Service Manual ▷ View online
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NW-A805/A806/A808/NWZ-A815/A816/A818
IC901 MAX8677AETG
IC903 MAX1557ETB
VOLTAGE REGULATOR
CURRENT-LIMITED
SETTING
CURRENT
CHARGER THERMAL
INPUT LIMITER &
REGULATION
VOLTAGE
INPUT
MONITOR
LOAD SWITCH
SYSTEM
CHARGER
LITHIUM BATTERY
2
DC
1
/DONE
3
DC
4
/CEN
5
PEN1
6
PEN2
7
PSET
8
VL
9
GND
10
CT
11
ISET
12
THM
24
/FL
T
25
GND
23
/UOK
22
/DOK
21
SYS
20
SYS
19
/CHG
18
BAT
17
BAT
16
USB
15
USB
14
TSET
13
USUSS
COMPARATOR
CURRENT-LIMIT
COMPARATOR
PWM
COMPARATOR
SLOPE
SENSE
CURRENT
AMPLIFIER
ERROR
PROTECTION
SHORT-CIRCUIT
DETECT
ZERO-CROSS
1.25V
REFERENCE
VOLTAGE
OUTPUT
SELECTOR
AUTO SKIP
PWM
CONTROL
ENTER SKIP/
SKIP-OVER
SR OFF
BIAS
CLOCK
1MHZ
0.675V
10
D1
9
INP
8
LX
7
PGND
6
D2
1
IN
2
GND
3
SS
4
OUT
5
XSHDN
11
PGND
DRIVER
30
NW-A805/A806/A808/NWZ-A815/A816/A818
•
IC Pin Function Description
MAIN BOARD IC302 CS42L51-CNZR (A/D CONVERTER, D/A CONVERTER)
Pin No.
Pin Name
I/O
Description
1
LRCK
I/O
L/R sampling clock signal input/output with the system controller
2
SDA/CDIN
I/O
I2C mode : Serial date input/output with the system controller
SPI mode : Serial date input from the system controller
SPI mode : Serial date input from the system controller
3
SCL/CCLK
I
Serial data transfer clock signal input from the system controller
4
AD0/nCS
I
I2C mode : Address signal input from the system controller
SPI mode : Chip select signal input from the system controller
SPI mode : Chip select signal input from the system controller
5
VA_HP
-
Power supply terminal (+1.8V)
6
FLYP
I
Connected to the external charge pump capacitor (positive node)
7
GND_HP
-
Ground terminal
8
FLYN
I
Connected to the external charge pump capacitor (negative node)
9
VSS_HP
-
Connected to the capacitor for the internal analog headphone section
10
AOUTB
O
R-ch analog audio signal output to the headphone and WM-port
11
AOUTA
O
L-ch analog audio signal output to the headphone and WM-port
12
VA
-
Power supply terminal (+1.8V)
13
AGND
-
Ground terminal
14
DAC_FILT+
-
Not used
15
VQ
-
Not used
16
ADC_FILT+
-
Not used
17
MICIN1/AIN3A
I
Analog audio signal input terminal Not used
18
MICIN2/AIN3B/
BIAS
I
Analog audio signal input terminal Not used
19
AIN2A
I
Analog audio signal input terminal Not used
20
AIN2B/BIAS
I
Analog audio signal input terminal Not used
21
AFILTA
-
Not used
22
AFILTB
-
Not used
23
AIN1A
I
L-ch analog audio signal input from the WM-port
24
AIN1B
I
R-ch analog audio signal input from the WM-port
25
nRESET
I
Reset signal input from the system controller
26
VL
-
Power supply terminal
27
VD
-
Power supply terminal (+1.8V)
28
DGND
-
Ground terminal
29
SDOUT
O
Serial audio date output to the system controller
30
MCLK
I
Master clock signal input from the system controller
31
SCLK
O
Serial clock signal output to the system controller
32
SDIN
I
Serial audio date input from the system controller
33
AGND
-
Ground terminal
31
NW-A805/A806/A808/NWZ-A815/A816/A818
MAIN BOARD IC601 MC-10051F1-FAE-A (SYSTEM CONTROLLER, POWER CONTROL, LCD DRIVER,
NAND FLASH INTERFACE, MS INTERFACE, SD-RAM INTERFACE)
Pin No.
Pin Name
I/O
Description
A1 to A3
NC
-
Not used
A4
NAND_WEZ
O
Write enable signal output to the NAND flash memory
A5
IO_B
-
Not used
A6 to A10
NC
-
Not used
A11 to
A13
GND
-
Ground terminal
A14 to
A16
NC
-
Not used
A17
VCCVBUS
-
Power supply terminal (USB power supply)
A18
NC
-
Not used
A19
IO_A
-
Not used
A20
VDD_L0
-
Power supply terminal
A21
AB0_A8
O
Address signal output to the USB controller
A22 to
A26, B1,
B2
NC
-
Not used
B3
NAND_CEZ2
O
Chip enable signal output to the NAND flash memory
B4
NAND_DA0
I/O
Serial date input/output with the NAND flash memory
B5
IO_B
-
Not used
B6
KEY_AD1
I
Key input terminal (A/D input)
B7, B8
ADIN6, ADIN8
-
Not used
B9
ADVCC
-
Power supply terminal
B10
CPEN
-
Not used
B11, B12
GND
-
Ground terminal
B13
SWGND
-
Ground terminal
B14
NC
-
Not used
B15
SWADP2
-
Not used
B16
GND
-
Ground terminal
B17
VCCADP
-
Power supply terminal
B18
NC
-
Not used
B19
IO_A
-
Not used
B20
VDD_L0
-
Power supply terminal
B21 to
B26, C1
NC
-
Not used
C2, C3
NAND_CEZ1,
NAND_CEZ3
O
Chip enable signal output to the NAND flash memory
C4
NAND_DA1
I/O
Serial date input/output with the NAND flash memory
C5
IO_B
-
Not used
C6
KEY_AD0
I
Key input terminal (A/D input)
C7
ADIN5
-
Not used
C8
CRD_AD
I
Terminal for peropherals distinction of WM-port
C9
ADGND
-
Ground terminal
C10
NC
-
Not used
C11
GND
-
Ground terminal
C12
NC
-
Not used
C13
GND
-
Ground terminal
32
NW-A805/A806/A808/NWZ-A815/A816/A818
Pin No.
Pin Name
I/O
Description
C14
NC
-
Not used
C15
SWADP
-
Not used
C16
CAPVBDL
-
Not used
C17
VCCVBAT
-
Power supply terminal (battery power supply)
C18
NC
-
Not used
C19
IO_A
-
Not used
C20
AB0_A5
O
Address signal output to the USB controller
C21 to C24
NC
-
Not used
C25
AB0_D1
I/O
Serial date input/output with the USB controller
C26
NC
-
Not used
D1
IDPULLUP
-
Not used
D2
NAND_RBZ0
O
Read/busy signal output to the NAND flash memory
D3
NAND_ALE
O
Address latch enable signal output to the NAND flash memory
D4
NAND_DA2
I/O
Serial date input/output with the NAND flash memory
D5
IO_B
-
Not used
D6, D7
VDD_L1
-
Power supply terminal
D8
GND
-
Ground terminal
D9
NC
-
Not used
D10
GND
-
Ground terminal
D11 to
D14
NC
-
Not used
D15
SWVBUS2
-
Not used
D16
CAPVBSW
-
Not used
D17
VCCVBAT
-
Power supply terminal (battery power supply)
D18
AB0_A3
O
Address signal output to the USB controller
D19
IO_A
-
Not used
D20
AB0_A6
O
Address signal output to the USB controller
D21 to
D23
NC
-
Not used
D24, D25
AB0_D0, AB0_D2
I/O
Serial date input/output with the USB controller
D26
NC
-
Not used
E1
DISCHGVBUS
-
Not used
E2
NC
-
Not used
E3
NAND_REZ
O
Read enable signal output to the NAND flash memory
E4
NAND_DA3
I/O
Serial date input/output with the NAND flash memory
E5
IO_B
-
Not used
E6
NAND_DA5
I/O
Serial date input/output with the NAND flash memory
E7
NC
-
Not used
E8
NAND_DA7
I/O
Serial date input/output with the NAND flash memory
E9
NAND_CLE
O
Command latch enable signal output to the NAND flash memory
E10
BATSEL
-
Not used
E11
SWBAT
-
Not used
E12
CAPBTDL
-
Not used
E13
CAPADDL
-
Not used
E14
NC
-
Not used
E15
SWVBUS
-
Not used
E16, E17
NC
-
Not used
E18
AB0_A4
O
Address signal output to the USB controller
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