Sony NW-A806 Flashclk, Chgvbus, AB0CSZ2, AB0XACK, Dvdd, Extrst, Etherxint, Usbsuspd, SDRDATA25

Page 33

NW-A805/A806/A808/NWZ-A815/A816/A818

Pin No.

Pin Name

I/O

Description

 

 

 

 

E19

FLASHCLK

O

Flash clock output to the D flip-flop

 

 

 

 

E20

AB0_A7

O

Address signal output to the USB controller

 

 

 

 

E21 to E23

NC

-

Not used

 

 

 

 

E24

AB0_XDRQ

I

DMA request signal input from the USB controller

E25

AB0_D4

I/O

Serial date input/output with the USB controller

E26

NC

-

Not used

 

 

 

 

F1

DGND

-

Ground terminal

 

 

 

 

F2

CHGVBUS

-

Not used

 

 

 

 

F3, F4

NC

-

Not used

 

 

 

 

F5

IO_B

-

Not used

F22

AB0_CSZ2

O

Chip select signal output to the USB controller

F23

AB0_XACK

O

DMA acknowledge signal output to the USB controller

F24, F25

AB0_D3, AB0_D5

I/O

Serial date input/output with the USB controller

 

 

 

 

F26

NC

-

Not used

 

 

 

 

G1

DVDD

-

Power supply terminal

 

 

 

 

G2, G3

NC

-

Not used

G4

EXTRST

I

Reset signal input from the reset switch

G5

NC

-

Not used

G22

ETHER_XINT

-

Not used

 

 

 

 

G23 to

AB0_D15 to

I/O

Serial date input/output with the USB controller

G25

AB0_D13

 

 

 

 

 

 

G26

NC

-

Not used

 

 

 

 

H1

USBSUSPD

-

Not used

H2

NC

-

Not used

 

SDR_DATA25,

 

 

H3 to H5

SDR_DATA27,

I/O

Serial data input/output with the 256Mbit SD-RAM

 

SDR_DATA31

 

 

 

 

 

 

H8

NAND_RBZ1

O

Read/busy signal outoput to the NAND flash memory

H9 to H15

NC

-

Not used

H16

AB0_WRZ

O

Write strobe signal output to the USB controller

 

 

 

 

H17

NC

-

Not used

 

 

 

 

H18, H19

AB0_A1, AB0_A2

O

Address signal output to the USB controller

 

 

 

 

H22 to

AB0_D8, AB0_D9,

I/O

Serial date input/output with the USB controller

H25

AB0_D7, AB0_D6

 

 

 

 

 

 

H26

NC

-

Not used

J1 to J3

IO_A

-

Not used

 

 

 

 

J4, J5

SDR_DATA29,

I/O

Serial data input/output with the 256Mbit SD-RAM

SDR_DATA30

 

 

 

 

 

 

 

J8

NAND_RBZ2

O

Read/busy signal outoput to the NAND flash memory

 

 

 

 

J9, J10

NC

-

Not used

 

 

 

 

J11 to J17

GND

-

Ground terminal

J18

NC

-

Not used

J19

AB0_RDZ

O

Read strobe signal output to the USB controller

 

 

 

 

J22 to

AB0_D10 to

I/O

Serial date input/output with the USB controller

J24

AB0_D12

 

 

 

 

 

 

J25

CHGGND1

-

Ground terminal

 

 

 

 

J26

NC

-

Not used

 

 

 

 

K1 to K3

VDD_L1

-

Power supply terminal

33

Image 33 Contents
NW-A805/A806/A808 SpecificationsNW-A805/A806/A808/NWZ-A815/A816/A818 Disassembly Table of ContentsDiagrams Flexible Circuit Board RepairingFormatting Memory Format Color Variation Parts and Controls Whenusing the headphone extension cordRear Cabinet Assy Disassembly FlowMain Board Holder ConnectorAbout Holding the bent part Nand BOARD, SVX Switch Flexible PWB AssyFront Button SVX LCD Assy LCD801, Battery AssyFront Cabinet Assy Power supply voltage check Operation of the Test Mode 4-1. PowerConsumption current audio playback check Standby current check Battery voltage checkCharge current check AudioFrequency characteristic 2 check Frequency characteristic 1 checkOutput check 2. S/N checkCH separation R-ch check CH separation L-ch checkMaximum output check Normalizer checkVideo Sound pressure regulation level checkLCD display check OtherSound pressure regulation setting Destination settingKey check FormatBlock Diagram Section DiagramsAudio Video Semiconductor Uses unleaded solderLocation Uses unleaded solder Semiconductor Location Main Board Side BMain Board 1/6 Schematic Diagram Main /6 See page 28 for IC Block Diagrams IIC IC701 IC803 Main Board 6/6 IC301 XC6401FF58DR IC303 MAX4764ETB+TG069 IC Block Diagrams Main BoardMAX8677AETG Pin No Pin Name Description IC Pin Function DescriptionVccvbus IOBVDDL0 NANDCEZ2Capvbdl SwadpVccvbat IdpullupChgvbus FlashclkAB0CSZ2 AB0XACKSDRDATA28 ResetzSDRDATA26 LcdhsyncLcdpxclk VloginSDRDQM1 SdrwezCKI VpllDspdet LcdbltctlVana VanainAB1 VDDL0 AB2 XusbokXholdkey OscoutKeywake SPI0CSZ2DD2VFB2 VGP45INDD2LX3 DD2LX1 DD2LX2VCCIO2 B5OUTVaux B1OUTRear Cabinet Section NW-A805/A806/A808 Exploded ViewsBLACK, SILVER, VIOLET, Blue models only Rear Cabinet Section NWZ-A815/A816/A818109 Main BOARD, Nand Board Section NW-A805/A806/A808159 Main BOARD, Nand Board Section NWZ-A815/A816/A818208 207 Front Cabinet SectionMain Electrical Parts ListCeramic Chip 5PF CS42L51-CNZR Switch NW-A805 E, MX, AUS, JE NandCD-ROM Assy Russia Help Revision History