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

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