Sony Ericsson NWZ-A826K, NWZ-A829, NWZ-A828K service manual Main Board

Page 26

NWZ-A826/A826K/A828/A828K/A829

5-9.

SCHEMATIC DIAGRAM - MAIN Board (5/7) -

• See page 32 for IC Block Diagrams.

• See page 34 for IC Pin Function Description.

1

2

3

4

5

6

7

8

9

10

11

12

13

A

5

MAIN BOARD

(5/7)

VDD_DDC2_J

MAIN

R302

BOARD

(7/7)

0

(Page 28)

VDD_HP_F

R304

IC B/D

IC305

150k

1

6

R120

470

CL201

EN2

IC301

VOUT2

HEADPHONE/WM-PORT

LINE_OUT_R

2

2

VIN

XC6401FF58DR VOUT1

5

SELECTOR

R220

470

CL101

LINE_OUT_L

B

3

EN1

GND

VSS

4

IC B/D

MAIN

7

C307

C316

R310

R312

BOARD

R305

C305

10

22

0

0

(7/7)

220k

10

6.3V

(Page 28)

IC301

Q301, 304

10

9

8

7

6

MUTING CONTROL

COM1

NC1

VCC

NC2

COM2

+1.8V REGULATOR

SWITCH

HP_XMUTE

Q304 UNR31A600LS0

C

XCRD_LINEOUT

24

23

22

21

20

19

18

17

CB1

NO1

GND

NO2

CB2

C312

22

1

2

3

4

5

10

ADA_XRST

25

nRESET

AIN1B

AIN1A

AFILTB

AFILTA

AIN2B/BIAS

AIN2A

MICIN2/AIN3B/BIAS

MICIN1/AIN3A

ADC_FILT+

16

C313

0.1

Q301 UNR31A600LS0

IC305 MAX4745ELB+TG069

C303

0.1

C314

1

D

26

VL

VQ

15

MAIN

C301

C315

1

C116

C216

BOARD

0.001

C302

0.1

28 27

VD

IC302

DAC_FILT+

13 14

(1/7)

DGND

AGND

0.0047

0.0047

(Page 22)

C310

0.1

PCM0_ADDT

29

SDOUT

A/D CONVERTER,

VA

12

CN301

C208

CPU_REFCLKO

30

D/A CONVERTER,

11

R314

0

R315

220

MCLK

HEADPHONE AMP

AOUTA

R223

R123

0.1

11P

PCM0_BCK

31

10

SCLK

IC302

AOUTB

0

0

∗ R106, 206

1

MIC_RIN

PCM0_DADT

32

SDIN

CS43L21-CNZR

VSS_HP

9

5.6 (EXCEPT NWZ-A826: FR/A828: FR/A829: FR)

2

MIC_RIN

C311

R307

R313

R206

R106

43 (NWZ-A826: FR/A828: FR/A829: FR)

3

HP_R

33

AGND

1

C107

C207

1k

1k

∗

∗

FB201

CL202

4

HP_R

E

0.068

0.068

FB101

CL102

5

COM

2.2

2.2

J301

6

COM

SCL/CCLK3

RSB6.8STE61

J

SDA/CDIN2

AD0/nCS4

GNDHP7

R210

LRCK1

VAHP5

FLYP6

FLYN8

7

COM

R108

R208

R109

R209

8

MIC_L

470

470

470

470

D201

9

MIC_L

HP FLEXIBLE

R110

PRINT BOARD

-1

-2

-1

-2

D101

RSB6.8STE61

10 HP_L

PCM0_LRCK

C308

R105

R205

C319

C321

C110

11

HP_L

F

1

47

47

4.7

0.022

0.22

FB301

SPI0_MOSI

Q302

Q303

C210

SPI0_CLK

EMX18

EMX18

0.22

D301

SPI0_XCS2

C306

MUTING

MUTING

VMZ6.8NT2L

AGND

0.1

C326

C327

C328

C329

C330

0.47

0

0

0

0

DGND

G

TB301

(CHASSIS)

Note 1: When the MAIN board is replaced, format it according to the “NOTE OF MAIN BOARD REPLACING” (refer to page 4) of the servicing notes.

Note 2: IC301, IC302 and IC305 on the MAIN board cannot exchange with single. When IC301, IC302 and IC305 on the MAIN board are damaged, exchange the entire mounted board.

NWZ-A826/A826K/A828/A828K/A829

26 26

Image 26

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