Diagrams; Block Diagram - Main Section - Sony Walkman NWZ-A726 Service Manual

5-1.

BLOCK DIAGRAM - MAIN Section -

CN851 (1/3)
USB CONTROLLER
(WM-PORT)
IC501
3
D+ A3 DP CD0 – CD15
4
USB ADDRESS1 – USB ADDRESS8
D– A4 DM
CA1 – CA8
XINT E3
XCS H2
XRD G3
XWRH F3
XWRL H3
XDACK F4
XDREQ G4
XRESET D1
B8 C8
X501
12MHz
SDR_D0O – SDR_D31
DQ0 – DQ31
SDR_A00 – SDR_A12
A0 – A12
BA0 J7
BA1 H8
CLK J1
CS J8
SD-RAM
IC701
CKE J2
WE K8
CAS K7
RAS J9
DQM0 K9
DQM1 K1
DQM2 F8
DQM3 F2
NAND_D0O – NAND_D07
I/O1 – I/O8
ALE 17
CLE 16
XCE1 9
NAND FLASH
MEMORY XRE 8
IC751
XWE 18
R/B1 7
XCE2 10
R/B2 6
(NWZ-A729)
(NWZ-A728/A728B/A729)
I/O1 – I/O8
ALE 17
CLE 16
XRE 8
NAND FLASH
XWE 18
MEMORY
IC752
XCE1 9
R/B1 7
XCE2 10
R/B2 6
SIGNAL PATH
: AUDIO
NWZ-A726/A726B/A728/A728B/A729
SECTION 5

DIAGRAMS

SYSTEM CONTROLLER
IC601 (1/2)
USB DATA0 – USB DATA15
AB0_D0 – AB0_D15
AB0_A1 – AB0_A8
IC508
LEVEL SHIFT
AC5 USB_INT1
IC509
AB14 USB_INT2
F22 AB0_CSZ2
J19 AB0_RDZ
H16 AB0_WRZ
F23 AB0_XDACK
E24 AB0_XDMARQ
PM0_SO AC22
SPIO_SO AC8
P10 RESETZ
RESET SWITCH
SPIO_SK AC7
IC502 AB13 USB_XRST
SPIO_SCZ2 AD7
REFCLKO U18
PM0_SI AD22
PM0_CLK AC21
PM0_SEN AB22
ADA_XRST AC20
SDR_DATA0 –
SDR_DATA31
SDR_A0 – SDR_A12
SPIO_XCS0 AC6
AB5 SDR_BA0
T4 SDR_BA1
AA5 SDR_CLK
T3 SDR_CSZ0
T1 SDR_CKE0
R5 SDR_WEZ
U8 SDR_CASZ
CRD_LINEOUT AA1
T5 SDR_RASZ
P5 SDR_DQM0
R4 SDR_DQM1
R3 SDR_DQM2
R2 SDR_DQM3
HP_XMUTE Y3
NAND_DA0 –
NAND_DA7
D3 NAND_ALE
E9 NAND_CLE
M9 NAND_CEZ0
E3 NAND_REZ
A4 NAND_WEZ
D2 NAND_RBZ0
C2 NAND_CEZ1
H8 NAND_RBZ1
(NWZ-A728/A728B/A729)
(NWZ-A729)
B3 NAND_CEZ2
J8 NAND_RBZ2
C3 NAND_CEZ3
K8 NAND_RBZ3
(NWZ-A728/A728B/A729)
A/D CONVERTER,
D/A CONVERTER,
HEADPHONE AMP
IC302
32 SDIN AOUTA 11
2 SDA/CDIN
AOUTB 10
3 SCL/CCLK
4 AD0/nCS
30 MCLK
29 SDOUT
31 SCLK
1 LRCK
25 nRESET
SPIO_SO
SPIO_SO,
SPIO_SK,
SPIO_SK
SPIO_LCD_XCS
SPIO_LCD_XCS
A
17 17
NWZ-A726/A726B/A728/A728B/A729
HEADPHONE/WM-PORT
SELECTOR
IC305
HP_L
10 COM1 NO2 4
6 COM2
HP_R
NO1 2
NC2 7
NC1 9
MUTING MUTING
1 5
Q302 Q303
MUTING MUTING
CONTROL CONTROL
Q301 Q304
J301
CN851 (2/3)
(WM-PORT)
14
AU_L_OUT
17
AU_R_OUT