Sony Ericsson NWZ-A828K NANDCEZ0, LCDB0, LCDG4, LCDG5, LCDR0, LCDR1, Vmicin, SDRDQM0, Resetz, Cko

Page 38

NWZ-A826/A826K/A828/A828K/A829

Pin No.

Pin Name

I/O

Description

M9

NAND_CEZ0

O

Chip enable signal output to the NAND flash memory

M10

GND

-

Ground terminal

M17, M18

GND

-

Ground terminal

M19

LCD_B0

O

RGB video (blue) signal output to the liquid crystal display

M22 to

LCD_G0 to LCD_G3

O

RGB video (green) signal output to the liquid crystal display

M25

 

 

 

M26

NC

-

Not used

N1 to N5

SDR_DATA12 to

I/O

Two-way data bus with the SD-RAM

SDR_DATA8

 

 

 

N8

SDR_DATA7

I/O

Two-way data bus with the SD-RAM

N9, N10

GND

-

Ground terminal

N17 to

GND

-

Ground terminal

N19

 

 

 

N22, N23

LCD_G4, LCD_G5

O

RGB video (green) signal output to the liquid crystal display

N24, N25

LCD_R0, LCD_R1

O

RGB video (red) signal output to the liquid crystal display

N26

VMICIN

I

Power supply input terminal (+2.9 - 4.2V)

P1 to P4

SDR_DATA5 to

I/O

Two-way data bus with the SD-RAM

SDR_DATA2

 

 

 

P5

SDR_DQM0

O

Write mask signal output to the SD-RAM

P8

SDR_DATA6

I/O

Two-way data bus with the SD-RAM

P9

GND

-

Ground terminal

P10

RESETZ

O

Reset signal output to the USB controller

P17 to P19

GND

-

Ground terminal

P22

LCD_R3

O

RGB video (red) signal output to the liquid crystal display

P23

LCD_PXCLK

O

Pixel clock signal output to the liquid crystal display

P24

NC

-

Not used

P25, P26

IO_A

-

Not used

R1

SDR_DATA0

I/O

Two-way data bus with the SD-RAM

R2 to R4

SDR_DQM3 to

O

Write mask signal output to the SD-RAM

SDR_DQM1

 

 

 

R5

SDR_WEZ

O

Write enable signal output to the SD-RAM

R8

SDR_DATA1

I/O

Two-way data bus with the SD-RAM

R9

GND

-

Ground terminal

R10

NC

-

Not used

R17

U70_CTSZ

O

CTS signal output to the bluetooth controller

R18

U70_RTSZ

I

RTS signal input from the bluetooth controller

R19

GND

-

Ground terminal

R22, R23

LCD_R2, LCD_R4

O

RGB video (red) signal output to the liquid crystal display

R24

GNDSINK

-

Ground terminal

R25

VDD_L0

I

Power supply input terminal (+1.2V)

R26

NC

-

Not used

T1

SDR_CKE0

O

Clock enable signal output to the SD-RAM

T2

NC

-

Not used

T3

SDR_CSZ0

O

Chip select signal output to the SD-RAM

T4

SDR_BA1

O

Bank address signal output to the SD-RAM

T5

SDR_RASZ

O

Row address strobe signal output to the SD-RAM

T8

NC

-

Not used

T9

GND

-

Ground terminal

T10

NC

-

Not used

T17

U70_SOUT

O

Serial data output to the WM-PORT connector and bluetooth controller

T18

U70_SRIN

I

Serial data input from the WM-PORT connector and bluetooth controller

T19

GND

-

Ground terminal

T22

LCD_R5

O

RGB video (red) signal output to the liquid crystal display

T23

NC

-

Not used

T24

C_TMS

I

Mode selection signal input terminal for JTAG

T25

VLOG

O

Power supply output terminal (+1.8V)

T26

CKO

O

Main system clock output terminal (11.2896 MHz)

38

Image 38
Contents NWZ-A826/A826K/A828/A828K/A829 889-048-01NWZ-A826/A826K/A828/A828K/A829 Flexible Circuit Board Repairing DisassemblyDiagrams Section Servicing NotesNWZ-A828K AEP, UKNWZ-A826K Section GeneralCover REAR, Rear Assy Section DisassemblyDisassembly Flow Battery Main BoardLCD Assy Operation of the Test Mode 4-1. Power Section Test ModePower supply voltage check Charge current check Battery voltage detection checkStandby current check AudioOutput check Frequency characteristic 1 checkFrequency characteristic 2 check 2. S/N checkMaximum output check CH separation L-ch checkCH separation R-ch check Normalizer checkLCD display check Liquid crystal display is checked Sound pressure regulation level checkVideo OtherKey check Destination settingSound pressure regulation setting Frequency check that presses keyBASS-Gain/Fc setting Clear stereo setting With cableClear stereo setting No cable TREBLE-Gain/Fc settingShutdown Bluetooth address setting Bluetooth address is setBluetooth connection check Section Diagrams Block Diagram PANEL, Power Supply Section Side a For Printed Wiring BoardsFor Schematic Diagrams Side BPrinted Wiring Board Main Board Side a Uses unleaded solder Semiconductor LocationPrinted Wiring Board Main Board Side B Uses unleaded solder 123 Main Board 1/7 IC701 123 Main Board 3/7 See page 32 for IC Block Diagrams BoardMain Board Main Board 6/7 Main Board 7/7 SW Board Side a SW Board Side B Uses unleaded solder123 SW Board 1/2 SW Board 2/2 IC Block Diagrams Main Board IC301 XC6401FF58DRMAX8671CETL+TG069 SW BoardIC Pin Function Description GND NandwezIOB VccvbusNANDDA2 NANDRBZ0Nandale VDDL1NANDRBZ1 LcdenableUsbsuspd BtxrstLCDB0 ResetzNANDCEZ0 LCDG4, LCDG5Wakeup VloginSdrcasz PsmlodetSdrclk TustoSDRA0 TM2AD6 AD4 XholdkeyAD5 Keywake AD7 SPI0CSZ2DD1GNDA DD1INB1, DD1INB2DD1VFBK2 VGP1Section Exploded Views Cover Rear SectionRear Assy Section 106 1-756-702-11 BATTERY, Lithium ION Storage Main Board SectionFront Section Section Electrical Parts List MainLED SMLA13BDTT86ST Bluetooth CONNECTOR, FFC/FPC ZIF 11PMULTIPLE, Connector Ceramic Chip 5PFTransistor InductorCOIL,COMMONMODECHOKE SMD1210 Transistor EMX18SWITCH, Slide Hold Terminal Short Chip SwitchSWITCH, Tactil Reset TERMINAL, ContactBattery Assy US, CND, AEP, UK, FR, EE CONNECTOR, FFC/FPC ZIF 39PINBATTERY, Lithium ION Storage VaristorNWZ-A828K AEP AccessoriesMANUAL, Instruction English NWZ-A826K AEP/NWZ-A828K AEPMemo Revision History Ver Date Description of Revision