Panasonic SAVK-725-DGC Service manual

A

A

A

A

A

DVD Stereo System

SA-VK725DGC

Colour

(S) .... Silver Type

ORDER NO. MD0507287A3

Please use this manual together with the service manual for Model No. [SA-VK72DGCS/GS-S, Order No.
MD0506272C3].

Specifications

n AMPLIFIER SECTION

RMS Output Power: Dolby Digital Mode

Main

70 W per channel (6 Ω ), 1 kHz, 10% THD

Surround Ch

55 W per channel (6 Ω ), 1 kHz, 10% THD

Center Ch

70 W per channel (6 Ω ), 1 kHz, 10% THD

Total RMS Dolby Digital mode power

320 W

PMPO output power 4000 W

n FM/AM TUNER, TERMINALS SECTION

Preset station FM 15 stations

AM 15 stations

Frequency Modulation (FM)

Frequency range 87.50 - 108.00 MHz (50 kHz step)

Sensitivity 2.5 µV (IHF)

S/N 26dB 2.2 µV

ntenna terminals 75 Ω (unbalanced)

mplitude Modulation (AM)

Frequency range 522 - 1629 kHz (9 kHz step)

520 - 1630 kHz (10 kHz step)

M Sensitivity S/N 20dB at 999 kHz

560 µV/m

udio performance (Amplifier)

Input sensitivity/Input impedance

ux 250 mV, 20 kΩ

Phone jack

Terminal Stereo, 3.5 mm jack

Mic jack

Sensitivity 0.7 mV, 600 Ω

© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

A

A

SA-VK725DGC

Terminal Mono, 6.3 mm jack (2 system)

n CASSETTE DECK SECTION

Type Auto-Reverse

Track system 4-Track, 2 Channel

Head Record/Playback Solid permalloy head

Erasure Double gap ferrite head

Motor DC servo motor

Recording System AC Bias 100 kHz

Erasing System AC Erase 100 kHz

Tape Speed 4.8 cm/s

Overall frequency response (+3, -6 dB) at DECK OUT

Normal 35 Hz - 14 kHz

S/N Ratio 50 dB (A weighted)

Wow and Flutter 0.18 % (WRMS)

Fast Forward and Rewind Time Approx. 120 seconds with

C-60 cassette tape

n DISC SECTION

Disc played [8 cm or 12 cm]

*7

*4

*6

*6

*5

*7

*7

*7

*7

*6

*7

(1) DVD (DVD-Video, DVD-Audio, DivX , )

(2) DVD-RAM (DVD-VR, JPEG,, MPEG4,,DivX , )

(3) DVD-R (DVD-Video, DivX , )

*6

(4) DVD-RW (DVD-Video, DVD-VR, DivX , )

+ R/RW (Video)

(5) CD,CD-R/RW [CD-DA, Video CD, SVCD , MP3,, WMA

7

, JPEG

*4,*7

, MPEG4

* 5,*7

,DivX*6,*7, HighMAT Level 2 (Audio and

*1

*2

*7

*3

,

*

Image)]

*1

Conforming to IEC62107

*2

MPEG-1 Layer 3, MPEG-2 Layer 3

*3

Windows Media Audio Ver.9.0. L3

Not compatible with Multiple Bit Rate (MBR)

*4

Exif Ver 2.1 JPEG Baseline files

Picture resolution: between 160 x 120 and 6144 x 4096 pixels (Sub
sampling is 4:2:2 or 4:2:0)

*5

MPEG4 data recorded with Panasonic SD multi cameras or DVD

video recorders.

Conforming to SD VIDEO specifications (ASF standard)/ MPEG4
(Simple Profile) video system/G.7 26 audio system

*6

DivX 3.11, 4.x, 5.x

GMC (Global Motion Compensation) is not supported

*7

The total combined maximum number of recognizable audio,
picture and video contents and groups: 4000 audio ,picture and video
contents and 400 groups.

Pick up

Wavelength

CD 785 nm

DVD 662 nm

udio output (Disc)

Number of channels 5.1 ch (FL,FR,C,SL,SR,SW)

udio performance (measurement at: Line out terminal)

Frequency response

CD-Audio 4Hzto20kHz(+1dB,-2dB)

n VIDEO SECTION

Video system

Signal system PAL625/50, PAL525/60, NTSC

Composite video output

Output level 1Vp-p(75Ω)

Terminal Pin jack (1 system)

S-video output

Y output level 1Vp-p(75Ω)

C output level 0.3 Vp-p (75 Ω )(PAL)

0.286 Vp-p (75 Ω )(NTSC)

Terminal S terminal (1 system)

Component video output

[NTSC: 525 (480)p/525 (480)i, PAL: 625 (576)p/625 (576)i]

Y output level 1Vp-p(75Ω)

PBoutput level 0.7 Vp-p (75 Ω )

PRoutput level 0.7 Vp-p (75 Ω )

Terminal

Pin jack (Y: green, PB:blue,PR:red)(1system)

n GENERAL

Power supply

AC 110 to 127V/220 to 240 V, 50/60Hz

Power consumption 300 W

Power consumption in standby mode:

0.8 W (approximate)

Dimensions (W x H x D) 250 x 330 x 348 mm

Mass 8.8 kg

Operating temperatur e range +5°C to +35°C

Operating humidity range 5% to 90% RH (no condensation)

n SYSTEM

SC-VK725D (GC) Music System: SA-VK725D (GC)

Front Speaker: SB-VK72 (GC)

Satelite Speakers: SB-PT72 (GC)

2

Notes:

1. Specifications are subject to change without notice. Mass and
dimensions are approximate.

2. Total harmonic distortion is measured by the digital spectrum
analyzer.

SA-VK725DGC

CONTENTS

Page Page

1 Operating Procedures 4

2 Disc information

3 Schematic Diagram (Updating)

3.1. (A) DVD Module Circuit

3.2. (B) Main Circuit

3.3. (I) Transformer Circuit

4 Printed Circuit Board (Updating)

4.1. (A) DVD Module P.C.B. (Side: A & B)

14

23

24

24

6

7

7

4.2. (B) Main P.C.B.

4.3. (I) Transformer P.C.B.

5 Illustration of IC's, Transistors and Diodes (Updating)

6 Parts Location and Replacement Parts List (Updating)

6.1. Cabinet

6.2. Electrical Parts List (Updating)

6.3. Packing Materials & Accessories Parts List (Updating)

3

26

28

29

30

31

33

34

SA-VK725DGC

1 Operating Procedures

4

SA-VK725DGC

5

SA-VK725DGC

2 Disc information

6

SA-VK725DGC

3 Schematic Diagram (Updating)

Note: With reference to page 81~87, 89~97 & 104 (section 22) of the original service manual for SA-VK72DGCS/GS-S.
Below are the updates.

3.1. (A) DVD Module Circuit

SCHEMATIC DIAGRAM - 2

TO
SPINDLE
MOTOR

FP8251

DVD MODULE CIRCUIT

TRV_INNER_SW

1

DGND

2

TRVM+

3

TRVM-

4

SPM+

5

SPM-

6

6.3V220

C8252

0.1

C8251

R8261

82k

R8263

82k

R8264

15K

LB8260 ERJ3GEY0R00V

LB8259 ERJ3GEY0R00V

LB8258 ERJ3GEY0R00V

LB8257 ERJ3GEY0R00V

C8261

0.1

R8262

IC8251

C0GBG0000048

DRIVE IC

C8253

0.1

: +B SIGNAL LINE : CD-DA SIGNAL LINE

C8262

0.1

IC8251

VCC(CH3.4)

GND(CH3.4)

LDCNT

MUTE3

TRIN

BIAS2

LDIN

VIN3

PREVCC

MUTE4

VO3-

VO3+

VO4-

VO4+

28

CL8262

27

CL8252 CL8231

26

25

CL8251 CL8232

24

23

22

FIN

3029

21

20

19

18

17

16

15

C8256

0.1

C8231

C8232

BIAS1

1

VIN1

2

VIN2

3

15K

4

OPIN+

OPIN-

5

OPOUT

6

GND(PRE)

7

FIN

VCC(CH1.2)

8

MUTE12

9

GND(CH1.2)

10

VO2-

11

VO2+

12

VO1-

13

14

VO1+

TRV-I-SW

D+5V

FODRV

TRDRV

AD1

TL8201

R8230

2.2K

R8231

22K

0.1
R8232

7.5K

0.1

R8251

6.8

C8255
16V22

C8257

C8258

16V47

0.1

VHALF

SPMUTE

DRV0

DRV1

M+9V

TRVFTMUTE

TO
OPTICAL
PICKUP
UNIT
CIRCUIT
ON
SCHEMATIC
DIAGRAM-1

FP8531

T+

26

F+

25

F-

24

T-

23

HFM

22

TA(DVD)

21

TB(DVD)

20

TD(DVD)

19

TC(DVD)

18

FE2(DVD/CD)

17

FE1(DVD/CD)

16

GND

15

RF

14

VREF2(RF-)

13

PIN(DVD)

12

LDCD

11

LDGND

10

LDDVD

9

GND(OEIC)

8

VREF1

7

VCC

6

SUB2

5

SUB1

4

PIN(CD)

3

SUBSEL

2

GND(VRCD)

1

C8533 0.1

RX8532
(56 x 4)

RX8531
(56 x 2)

LB8561

LB8551 J0JBC0000042

LB8531 ERJ2GE0R00X

R8531 1.5K

R8532 2.2K

R8533 0

RX8534
(56 x 2)

J0JBC0000042

RX8533
(56 x 2)

C8511 1

C8512 1

C8532

220P

C8531 100P

VIN1

VIN2

VIN4

VIN3

VIN8

VIN7

RFINP

RFINN

LPC1

VREFH

VIN6

VIN5

LPC2

RAM_CD

7

SA-VK725DGC

SCHEMATIC DIAGRAM - 3

DVD MODULE CIRCUIT

QR8571

UNR511V00L

SUPPLY CONTROL SWITCH

C8112

1

CL8571

C8113

470P

TL8111

IC8111

C0CBCBD00018

3.3 REGULATOR IC

1

VO

2

NC

IC8111

3

GND

4

CN

: +B SIGNAL LINE

8

VIN

7

NC

6

NC

5

Cont

C8111

0.1

QR8111

XP0621400L

SWITCH

D+3.3V

D+5V

RX8111

(22K x 2)

5

6

4

3

1

2

D+1.2V

HFMON

D8571

MA2J72800L

LB8571

J0JBC0000042

C8572

0.1

C8571

10

LB8530

J0JHC0000045

C8530

0.1

C8551

0.1

C8561

0.1

R8567

R8566

51

R8568

47K

R8559

15K

B1ADGB000008

C8563

6.3V47

56

R8565

2.2

Q8562

B1ADGB000008

SWITCH

R8557

51

R8558

R8556

47K

56

Q8552

SWITCH

R8563

R8564

22

TL8510

TL8511

1K

C8553

6.3V47

R8555

2.2

C8564

1

R8553

R8554

C8562
16V10

R8562

1K

C8554

1K

68

2SD1819A0L

C8550

6.3V33

2SD1819A0L

C8552
16V10

1

Q8551

SWITCH

R8552

Q8561

SWITCH

1K

R8561

L8550

G1C100KA0055

CL8561

0

CL8551

R8551

0

A+5V

LPC02

AD0

LPC01

8

SA-VK725DGC

SCHEMATIC DIAGRAM - 4

DVD MODULE CIRCUIT

Y/PY/G

CB/PB/B

CR/PR/R

Y

C

1

ZERO1

STBDAC

SBT3

SBO3

ADAC-CLK

DMIXOUT

CL8427

SRCK

CL8428

LRCK

CL8431

ADOUT0

CL8432

ADOUT1

CL8433

ADOUT2

C8428

0.1

C8421

6.3V100

AMUT

AUDIODIGITAL
A+5V

D+1.2V

M+9V

D+5V

CPU_CLK

CPU_CMD

MS

2

MC

3

4

MD

5

SCK

6

DATA1

BCK

7

IC8421

8

LRCK

9

VDD

10

DGND

11

DATA2

12

DATA3

13

DATA4

14

MSEL

IC8421

C0FBBK000050

8-CH DAC IC

CL8435

CL8491

IC8691

C0JBAA000346

AND GATE LOGIC IC

VCC

2

3

GND

IC8695

C0JBAA000346

AND GATE LOGIC IC

51

4

ZERO2

VOUT1

VOUT2

VCOM

AGND2

VCC2

VOUT3

VOUT4

VOUT5

VOUT6

AGND1

VCC1

VOUT7

VOUT8

28

27

26

25

24

23

22

21

20

19

18

17

16

15

C8423

6.3V33

C8424

0.1

LB8690

J0JBC0000044

C8691

0.1

R8420

2.2K

: MAIN SIGNAL LINE

: +B SIGNAL LINE

C8422

0.1

C8427

0.1

C8426

0.1

QR8420

UNR521100L

AUDIO MUTING SWITCH

LB8691

ERJ2GEJ101X

LB8692

ERJ2GEJ101X

LB8303

LB8304 J0JBC0000042

LB8305 J0JBC0000042

LB8301 J0JBC0000042

LB8302

K8421 ERJ3GEY0R00V

LB8421 ERJ2GE0R00X

LB8422 ERJ2GE0R00X

LB8425 ERJ2GE0R00X

LB8426 ERJ2GE0R00X

LB8427 ERJ2GE0R00X

LB8428 ERJ2GE0R00X

LB8429 ERJ2GE0R00X

TC8430

LB8430 ERJ2GE0R00X

LB8423 ERJ2GE0R00X

LB8424 ERJ2GE0R00X

LB8491

F1H0J1050022

F1H0J1050022

F1H0J1050022

F1J1E1040022

: DVD VIDEO SIGNAL LINE

J0JBC0000042

J0JBC0000042

ERJ2GE0R00X

FL8103

FL8102

FL8101

K8106

ERJ3GEY0R00V

FL8104

CL8012

K8004

ERJ2GE0R00X

K8001

ERJ2GE0R00X

CL8006

K8009

ERJ2GE0R00X

K8006

ERJ2GE0R00X

VGND

Y/PY/G

VGND

CB/PB/B

VGND

CR/PR/R

VGND

VGND

ADAC5V

MIX-L

ADAC5V

MIX-R

ADACGND

ADACGND

ADACGND

ADACGND

ADACGND

CNT

ADACGND

A-REF

ZFLAG&AMUTE

DGND

AUDIODIGITAL

DGND

D+5V

DGND

D+5V

DGND

A+5V

AGND

A+5V

AGND

D+1.2V

DGND

D+1.2V

DGND

M+9V

MGND

M+9V

MGND

OP_CPU-CLK

OP_CPU-CMD

OP_CPU-STAT

CL8004

CL8001

CL8010

CL8007

Y

C

FL

FR

SL

SR

SW

FP8101

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

TO

24

MAIN CIRCUIT

25

(CN2813) ON

26

SCHEMATIC

27

DIAGRAM - 11

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

CPU_STAT

51

VCC

2

3

GND

4

C8695

0.1
LB8693

ERJ2GEJ101X

9

SA-VK725DGC

SCHEMATIC DIAGRAM - 5

DVD MODULE CIRCUIT

IC8611

C3EBGC000044

16M EEPROM IC

(NOT SUPPLIED)

1

A0

2

A1

IC8611

3

A2

4

GND

VCC

SCL

SDA

8

7

WP

6

5

RX8611

(4.7K x 2)

R8611

100

CL8612

CL8611

RX8001

(10K x 2)

RX8691
(10K x 2)

RX8032

(4.7K x 2)

C8611

0.1

STBDAC

CPU_CLK

CPU_CMD

EXTRG0

: +B SIGNAL LINE

SCL

SDA

SBT3

G1C100K00019

A+5V

Y/PY/G

L8330

EXADR15

EXADR14

EXADR13

EXADR12

EXADR11

EXADR10

EXADR9

EXADR8

EXADR19

EXADR20

NEXWE

PNRST

EXADR18

EXADR17

EXADR7

EXADR6

EXADR5

EXADR4

EXADR3

EXADR2

EXADR1

: DVD VIDEO SIGNAL LINE

1

A15

A14

2

3

A13

A12

4

A11

5

6

A10

7

A9

8

A8

9

A19

10

C8330

6.3V47

C8331 0.1

11

12

13

14

15

16

17

18

19

20

21

22

23

24

A20

XWE

XRESET

NC

WP/ACC

RDY/XBSY

A18

A17

A7

A6

A5

A4

A3

A2

A1

RFKWMH90E160

16M FLASH ROM IC

CL8652

R8334 1K

IC8651

IC8651

Q8331

XBYTE

VSS

DQ15/A-1

DQ7

DQ14

DQ6

DQ13

DQ5

DQ12

DQ4

VDD

DQ11

DQ3

DQ10

DQ2

DQ9

DQ1

DQ8

DQ0

XOE

VSS

XCE

R8332

0

EXADR16

48

A16

47

46

EXDT15

45

EXDT7

44

EXDT14

43

EXDT6

42

EXDT13

41

EXDT5

40

EXDT12

39

EXDT4

38

37

EXDT11

C8651

36

EXDT3

35

EXDT10

34

EXDT2

33

EXDT9

32

EXDT1

31

EXDT8

30

EXDT0

29

NEXOE

28

27

NEXCE

26

EXADR0

25

A0

Q8321, Q8325, Q8331, Q8335, Q8341

R8333

33

R8331

100

C8652

0.1

0.1

2SB1218ARL

SWITCH

Y/PY/G_A

CB/PB/B

CR/PR/R

Y

C

10

R8337 1K

C8335 0.1

R8343 1K

C8341 0.1

R8324 1K

C8321 0.1

R8328 1K

C8325 0.1

Q8335

Q8341

Q8321

Q8325

R8322

0

R8326

0

R8336

33

R8335

100

R8342

33

R8341

100

R8323

33

R8327

33

R8321

100

R8325

100

CB/PB/B_A

CR/PR/R_A

Y_A

C_A

SCHEMATIC DIAGRAM - 6

SA-VK725DGC

DVD MODULE CIRCUIT

C8051

C8606

0.1

3

VSS

IC8606

NC

4

MDQ0

MDQ1

MDQ2

MDQ3

MDQ4

MDQ5

MDQ6

MDQ7

DQM0

NWE

NCAS

NRAS

NCSM

BA0

BA1

MA10

MA0

MA1

MA2

MA3

VDD

12

OUT

CD

5

1

C8052

0.1

C8053

0.1

C8054

220P

C8055

1

R8601

100K

C0EBE0000455

RESET IC

IC8606

1

VDD

2

DQ0

3

VDDQ

4

DQ1

5

DQ2

6

VSSQ

7

DQ3

8

DQ4

9

VDDQ

10

DQ5

11

DQ6

12

VSSQ

13

DQ7

14

VDD

15

LDQM

16

/WE

/CAS

17

18

/RAS

19

/CS

20

BA0

21

BA1

22

A10/AP

23

A0

24

A1

25

A2

26

A3

27

VDD

C3ABPG000145

IC8051

IC8051

64 SDRAM IC

VSS

DQ15

VSSQ

DQ14

DQ13

VDDQ

DQ12

DQ11

VSSQ

DQ10

DQ9

VDDQ

DQ8

VSS

UDQM

CLK

CKE

VSS

: +B SIGNAL LINE

54

C8057

1

C8056
2200P

C8601

0.1

IC8601

IC8601

RESET IC

MDQ15

MDQ14

MDQ11

MDQ10

DQM1

CLK

MA7

MA6

MA5

MA4

VDDNIC

OUT

2

1

MDQ3

MDQ2

MDQ7

MDQ6

MA10

PNRST

RX8012

(82 x 4)

RX8014
(82 x 4)

RX8015
(82 x 4)

MDQ3A

MDQ12

MDQ2A

MDQ13

MDQ7A

MDQ8

MDQ6A

MDQ9

MA10A

MA11

MA8

MA9

EXADR0

NEXCE

NEXOE

EXDT0

EXDT8

EXDT1

EXDT9

EXDT2

EXDT10

EXDT3

EXDT11

EXDT4

EXDT12

EXDT5

EXDT13

EXDT6

EXDT14

EXDT7

EXDT15

EXADR16

EXADR15

EXADR14

EXADR13

EXADR12

EXADR11

EXADR10

EXADR9

EXADR8

EXADR19

NEXWE

EXADR18

EXADR17

EXADR7

EXADR6

EXADR5

EXADR4

EXADR3

EXADR2

EXADR1

CL8651

CL8653

C8018 0.1

C8019 0.1

C8020 0.1

C8006 0.1

C8021 0.1

C8007 0.1

C8022 0.1

CL8053

CL8063

CL8054

CL8062

CL8055

CL8061

CL8056

CL8060

CL8057

CL8059

CL8058

C8008

0.1

53

52

51

50

49

48

47

46

45

44

43

42

41

40

NC

39

38

37

36

NC

35

A11

34

A9

33

A8

32

A7

31

A6

30

A5

29

A4

28

3

GND

4

C0EBA0000029

C8602

0.015

11