Sony Walkman NWZ-A726 Service Manual page 18

NWZ-A726/A726B/A728/A728B/A729
5-2. BLOCK DIAGRAM - PANEL, POWER SUPPLY Section -
SPIO_SO, SPIO_SK, SPIO_LCD_XCS
A
SHEET KEY
&
S890 - 896
S601
RESET
OFF
S602
HOLD
ON
NWZ-A726/A726B/A728/A728B/A729
LCD_PON W3
6
LCD_R0 – LCD_R5
6
LCD_G0 – LCD_G5
6
LCD_B0 – LCD_B5
LCD_PXCLK P23
LCD_HSYNC K22
LCD_VSYNC K24
LCD_ENABLE K23
LCD_BLTCTL V17
C6 KEY_AD0
B6 KEY_AD1
Q801
WAKE UP SWITCH
LCD_PWM1 AD23
AD5 KEY_WAKE
Q603
VCC_DCIN
G4 EXTRST
VCC_VBUS
VCC_VBAT
AD4 XHOLD_KEY
VDD_UNREG_J
VDD_DDC3_J
BKBAT AD17
PSM_LODET U14
AC26 OSCOUT
X602
32.768kHz
AB26 OSCIN
CKO
T26
X603
11.2896MHz
U26
CKI
SDI
SPIO_SO SPIO_SO
SCL
SPIO_SK
SIGNAL PATH
SPIO_LCD_XCS CS
RESET
R0 – R5
G0 – G5
LCD
B0 – B5
ASSY
DOTCLK
HSYNC
VSYNC
DEN
ANODE
CATHODE (1)
LED
CONTROL
CATHODE (2)
IC801
CATHODE (3)
VDD_DDC2_J
+3.1V +1.8V
REGULATOR USB +1.8V REGULATOR
IC602 IC504
+3.1V
USB +3.1V
REGULATOR VDD_ANA_F
IC503
VDD_ECO_J
VDD_GP1_J
VDD_GP1_FB_J
VDD_GP3
VDD_GP5
+1.8V
VDD_LO_F
HP/WM-PORT +1.8V
REGULATOR
VDD_LOG_F
IC301
VDD_PLL_S
VDD_HP_F
SYSTEM CONTROLLER,
POWER CONTROL
IC601 (2/2)
18 18
: VIDEO
POWER CONTROL
IC901
35 SYS
DC
VOLTAGE
DETECT 20 EN
IC902
USB
23 LX1
BAT
8 LX2
CHARGE
CHG_ICTL Y2 CONTROL 31 CISET
Q901
12 /DOK
CHG_XCHGEN V10 10 /CEN
CHG_PEN2 W8 40 PEN2
USB_SUSPEND AB8 1 USUS
XCHG_DET AC4 39 CST1
CHG_XFLT AB4 37 CST2
U70_SOUT T17
TXD_PUCTL AB2
U70_SRIN T18
CRD_DET AB3
CRD_AD C8
CN851 (3/3)
(WM-PORT)
20
DCIN
11
USB_DET
12
UNREG_OUT
2
3
34
CHARGE
LITHIUM ION
STORAGE
BATTERY
3.7V 610mAh
10
TXD/SLEEP
8
RXD/WAKE
9
CRD_AD