Pioneer DVD-V7400, DVD-V7300D User Manual 2

STANDBY
ON

DISPLAY

SCAN/SKIP

14¡

DVD PLAYER DVD-V7300D

PROGRAM

KEY LOCKNTSC / PAL

STILL/STEP

PLAY/PAUSE

eE

¢

^

DVD / CD

DOLBY

D I G I T A L

STOP

OPEN/CLOSE

§

Î

EXT CONT

PHONES

LEVEL

MIN MAX

MOUSE

/KEY BOARD

DVD PLAYER

DVD-V7400

DVD-V7300D

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Type

Model

DVD-V7400 DVD-V7300D

KU/CA O - AC120V 1

WYV/RB - O AC-220 - 240V Automatic select 2

Power Requirement

The voltage can be converted
by the following method.

Regional restriction
codes(Region N0.)

ORDER NO.

RRV2257

CONTENTS

1. SAFETY INFORMATION

2. EXPLODED VIEWS AND PARTS LIST

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM..10

4. PCB CONNECTION DIAGRAM

5. PCB PARTS LIST

6. ADJUSTMENT

................................................

.....................................................

7. GENERAL INFORMATION

7.1 DIAGNOSIS

...................................................

7.1.1 TEST MODE SCREEN DISPLAY

7.1.2 DISPLAY OF THE ERROR HISTORY

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

c

PIONEER CORPORATION 2000

.......................................

.................

...........................

..................................

.............

......

34
45
50
52
52
52
54

2
4

7.1.3 ERROR CODE TABLE

7.1.4 TRAOUBLE SHOOTING

7.1.5 SERIAL CONTROL

7.1.6 PARALLEL CONTROL

7.1.7 DISASSEMBLY

7.2 PARTS

7.2.1 IC

...........................................................

.............................................................

8. PANEL FACILITIES AND SPECIFICATIONS

...........................

..........................

..................................

.............................

........................................

55
58
59
64
67
69
69

....

78

T – ZZY JAN. 2000 Printed in Japan

DVD-V7400, DVD-V7300D

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians ; it is not meant for the casual do-it­yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.

WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause
cancer, birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 – Proposition 65

NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must
be of identical designation.

REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces
de remplacement doivent avoir la même désignation.

(FOR USA MODEL ONLY)

1. SAFETY PRECAUTIONS

The following check should be performed for the
continued protection of the customer and service
technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known earth ground (water
pipe, conduit, etc.) by connecting a leakage current tester
such as Simpson Model 229-2 or equivalent between the
earth ground and all exposed metal parts of the appliance
(input/output terminals, screwheads, metal overlays, control
shaft, etc.). Plug the AC line cord of the appliance directly
into a 120V AC 60Hz outlet and turn the AC power switch
on. Any current measured must not exceed 0.5mA.

Reading should
not be above

0.5mA

Earth
ground

Device
under
test

Also test with
plug reversed
(Using AC adapter
plug as required)

Leakage
current
tester

Test all
exposed metal
surfaces

ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE APPLIANCE TO THE CUSTOMER.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are
often not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical components having such features are identified
by marking with a
in this Service Manual.
The use of a substitute replacement component which does
not have the same safety characteristics as the PIONEER
recommended replacement one, shown in the parts list in
this Service Manual, may create shock, fire, or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current PIONEER Service
Manual. A subscription to, or additional copies of, PIONEER
Service Manual may be obtained at a nominal charge from
PIONEER.

on the schematics and on the parts list

AC Leakage Test

2

IMPORTANT
THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS 1.
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.

LASER DIODE CHARACTERISTICS
FOR DVD : MAXIMUM OUTPUT POWER : 5 mW

WAVELENGTH : 655 nm

FOR CD : MAXIMUM OUTPUT POWER : 5mW

WAVELENGTH : 785 nm

LABEL CHECK

DVD-V7400, DVD-V7300D

DVD-V7300D/WYV/RB only DVD-V7400/KU/CA only

DRW1995-A

Additional Laser Caution

1. Inside detection switch (S201 on the SMEB assy) and loading­status detection switch (S301 on the LOSB assy) are detected
by the microprocessor (IC11 in the DVDM assy).

• To permit the laser diode to oscillate, it is required to set the
inside detection switch for the inside position (S201 : ON) and to
set the loading-status detection switch for the clamp position (the
center terminal of S301 is shorted to +5V). The 655 nm laser
diode for DVD oscillation will continue if pin 19 of IC1 is shorted
to +5V (fault condition) in the DVDM assy.
The 785 nm laser diode for CD oscillates if pin 20 of IC1 is shorted
to +5V in the DVDM assy.
In the test mode ∗ , the laser diode oscillates when microproces­sor detects a PLAY signal, or when the PLAY key is pressed
(S159 ON in the KEYB assy), with the above requirements satis­fied.

2. When the cover is open, close viewing through the objective lens
with the naked eye will cause exposure to the laser beam.

∗ : See page 50.

3

DVD-V7400D, DVD-V7300D

2. EXPLODED VIEWS AND PARTS LIST

NOTES:• Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.

The mark found on some component parts indicates the importance of the safety factor of the part.

•

Therefore, when replacing, be sure to use parts of identical designation.

Screws adjacent to mark on the product are used for disassembly.

•

2.1 PACKING

10

DVD-V7400/KU/CA only

1
2
7

8

3
4

6

19

21
5

22

11

11

15

16

9

18

12

13

23

14

22

20

DVD-V7300D/WYV/RB only

17

4

(1) PACKING PARTS LIST

DVD-V7400, DVD-V7300D

Mark No. Description Part No.

NSP 1 Warranty Card See Contrast table (2)

2 Bar Code Sheet VRY1116
3 Audio Cord VDE1033
4 Video Cord VDE1048
5 Nylon Clamp VEC1988

NSP 6 Dry Cell Battery (LR6, AA) VEM-013

7 Operating Instructions See Contrast table (2)

(Basic Operations) (English)

8 Operating Instructions See Contrast table (2)

(Applied Operations) (English)

9 Remote Control Unit DXX2448

NSP 10 Polyethylene Bag See Contrast table (2)

(50×70×0.03)

Mark No. Description Part No.

11 Polyethylene Bag Z21-038

(230×340×0.03)

12 Sheet RHX1006

NSP 13 Cord Bag See Contrast table (2)

14 Pad F VHA1212
15 Pad R VHA1213
16 Partition Plate VHB1062

17 Packing Case See Contrast table (2)

18 Battery Cover VNK4403
19 AC Power Cord See Contrast table (2)
20 AC Power Cord See Contrast table (2)

21 Screw See Contrast table (2)

22 Cord Bag See Contrast table (2)

23 Aircap VHL1048

(2) CONTRAST TABLE

DVD-V7400/KU/CA and DVD-V7300D/WYV/RB are constructed the same except for the following:

Mark

No.

Symbol and Description

DVD-V7400/

KU/CA

Part No.

Remarks

DVD-V7300D/

WYV/RB

NSP 1 Warranty Card ARY7031 Not used

5 Nylon Clamp VEC1988 Not used
7 Operating Instructions (English) DRB1264 Not used

(Basic Operations)

8 Operating Instructions (English) Not used DRB1268

(Applied Operations)

NSP 10 Polyethylene Bag Z21-002 Not used

NSP 13 Cord Bag VEG-012 Not used

19 AC Power Cord Not used ADG1127
20 AC Power Cord Not used ADG7004

(50×70×0.03)

17 Packing Case DHG1958 DHG1963

21 Screw AMZ30P060FZK Not used

22 Cord Bag Not used OHL1007

5

DVD-V7400D, DVD-V7300D

2.2 MAIN SECTION

25

47

65

76

53

76

67
(1/2)

76

78

41

56

52

64

34

66

82

57

63

55

61

74

79

54

33

57

59

67 (2/2)

76

73

69

78

70

72

33

44

45

77

76

68

43

A

26

68

72

76

33

A

76

12

76

3

76

62

58

21

60

6

4

76

76

18

76

49

Refer to
"2.3 LOADING
MECHANISM
ASSY".

16

17

5

76

76

35

42

32

30

19

76

31

46

76

2

37

76

76

49

50

78

15

23

75

22

DVD-V7300D/WYV/RB only

78

40

7

14

11

10

8

32

80

46

76

71

81

76

78

83

27

29

76

51

24

36

1

76

13

76

50

76

28

39

9

20

76

48

80

38

6

DVD-V7400, DVD-V7300D

MAIN SECTION PARTS LIST

•

Mark No. Description Part No. Mark No. Description Part No.

1 DVDM Assy See Contrast table (2)
2 SUBB Assy See Contrast table (2)
3 KEYB Assy DWG1529
4 HPIR Assy DWG1530
5 SPDB Assy DWG1532

6 PS2B Assy DWG1531
7 JACB Assy See Contrast table (2)
8 EXTB Assy DWV1185

9 SYPS Assy DWR1338

10 Flexible Cable (10P) VDA1673

(JACB CN653 – EXTB CN751)

11 Flexible Cable (26P) DDD1168

(SUBB CN102 – JACB CN602)

12 Flexible Cable (17P) DDD1169

(SUBB CN101 – KEYB CN151)

13 Flexible Cable (7P) DDD1174

(DVDM CN106 – SUBB CN201)

14 Flexible Cable (15P) DDD1167

(DVDM CN901 – JACB CN601)

15 Flexible Cable (26P) DDD1173

(DVDM CN110 – SYPS CN201)

16 Flexible Cable (24P) DDD1165

(DVDM CN120 – SPDB CN258)

17 Flexible Cable (12P) DDD1164

(DVDM CN1030 – SPDB CN252)

18 Flexible Cable (15P) DDD1162

(DVDM CN602 – SUBB CN103)

19 Flexible Cable (17P) DDD1166

(DVDM CN905 – SUBB CN302)

20 Flexible Cable (7P) DDD1163

(DVDM CN252 – SPDB CN251)

21 Flexible Cable (6P) VDA1670

(KEYB CN153 – PS2B CN801)
22 AC Power Cord (KU) See Contrast table (2)
23 AC Cord Stopper See Contrast table (2)

24 Housing Assy (2P) DKP3515

(DVDM CN180 – SUBB CN301)

25 DVD Door Assy-S DXX2466

NSP 26 Loading Mechanism Assy VWT1171

27 Bolt DBA1078
28 Fuse (F101: 2A) VEK1049
NSP 29 Nylon Rivet DEC1644

30 Card Spacer DEC1772
NSP 31 PCB Holder PNW2100

32 Foot Assy PXA1201

33 Tape (G) REH1010

34 Tray Stopper Spring VBH1277

35 Radiation Sheet VEB1279

NSP 42 Main Chassis VNB1037

NSP 70 Label VRW-348
71 AC Inlet AssY See Contrast table (2)

NSP 74 Label See Contrast table (2)

(2) CONTRAST TABLE

DVD-V7400/KU/CA and DVD-V7300D/WYV/RB are constructed the same except for the following:

Part No.

Mark

No.

Symbol and Description

DVD-V7400/

KU/CA

1 DVDM ASSY DWS1299 DWS1305
2 SUBB ASSY DWG1528 DWG1527

7 JACB ASSY DWV1184 DWV1189
22 AC Power Cord (KU) VDG1073 Not used
23 AC Cord Stopper VEC-201 Notu sed

36 Radiation Sheet (SILICON) DEB1444
37 Clamp DEC2383
38 Sheet VEC1999
39 Cushion DEB1199
40 Rear Panel See Contrast table (2)

41 Bonnet VNA1931
43 Sub Chassis VNB1038

44 Clamper Plate VNE2068
45 Bridge VNE2069

46 SYPS Stay See Contrast table (2)
47 Shield Stay F VNE2129
48 Shield Stay R VNE2130
49 Center Stay VNE2131
50 PCB Stay DNE1384

51 Heat Sink DNE1389
52 Cover VNE2147
53 Tray VNL1731
54 Clamper VNL1738
55 Tray Stopper VNL1739

56 Lens PNW1257
57 LED Lens PNW2019
58 Earth Spring VBH1301
59 Screen VEC1977
60 Earth Plate VNE2027

61 IR Window VNK2246
62 Volume Knob VNK3124
63 Illumination Holder VNK3917
64 Illumination Lens VNK4168
65 Front Panel See Contrast table (2)

66 DVD Door VNK4224
67 Operation Key Assy VXA2360
68 Loading Base Spacer DNK3755
69 65 Label See Contrast table (2)

72 Caution Label See Contrast table (2)
73 Caution Label See Contrast table (2)

75 Screw BCZ30P080FZK
76 Screw BBZ30P080FMC

77 Screw BBZ30P100FMC
78 Screw BCZ40P060FZK
79 Screw BPZ26P080FZK
80 Screw PMZ40P080FMC

81 Screw AMZ30P060FZK
82 Door Filter DEC2382
83 GND Terminal See Contrast table (2)

Remarks

DVD-V7300D/

WYV/RB

40 Rear Panel DNA1255 DNA1257
46 SYPS Stay DNE1386 DNE1385
65 Front Panel DNK3749 DNK3753
69 65 Label ARW7050 Not used
71 AC Inlet AssY Not used VKP2116

72 Caution Label Not used VRW1699
73 Caution Label Not used DRW1995

NSP 74 Label DRW1986 Not used

83 GND Termina Not used DKE-102

7

DVD-V7400D, DVD-V7300D

2.3 LOADING MECHANISM ASSY

• Top View • Bottom View

20

Refer to
"2.4 TRAVERSE MECHANISM ASSY-S".

4

5

1

19

3

1

*

23

1

*

1

*

1

*

21

2

22

24

18

10

6

9

17

11

13

7

8

16

15

14

12

1: Froil (PN-397)

*

LOADING MECHANISM ASSY PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

1 Traverse Mechanism Assy-S VXX2688
2 Screw DBA1006
3 Drive Cam VNL1736
4 Drive Gear VNL1735
5 Lock Plate VNL1820

6 Loading Base VNL1844
7 Belt VEB1260
8 Gear Pulley VNL1733

NSP 9 LOSB Assy VWG1885

10 Loading Gear VNL1734
11 Loading Motor Assy VXX2505

12 DC Motor / 0.3W PXM1027
13 Motor Pulley PNW1634

NSP 14 LOMB Assy VWG1886

15 Connector Assy VKP2198

(LOMB CN401 ↔ LOSB CN303)

8

16 Screw VBA1055
17 Screw Z39-019
18 Flexible Cable (08P) VDA1698

(LOSB CN302 ↔ SMEB CN202)

19 Float Base VNL1867
20 Floating Rubber VEB1286

21 Flexible Cable (24P) VDA1701

(Pickup Assy ↔ SPDB CN257)
22 Cushion VEB1312
23 Flexible Cable (11P) DDD1161

(SPINDLE MOTOR Assy ↔ SPDB CN255)
24 Flexible Cable (12P) DDD1172

(LOSB CN301 ↔ SPDB CN253)

2.4 TRAVERSE MECHANISM ASSY-S

• Top View

DVD-V7400, DVD-V7300D

37

37

17

31

30
16

35

33

28

5

22

33

23

10

15

10

10

14

1

*

7

7

34

19
8
6

20

12

37

4

10

1

*

13

37
18

32

1

18

26

11

25

27

1

*

7

29

36

3

1: Froil (PN-397)

*

TRAVERSE MECHANISM ASSY-S PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

NSP 1 SMEB Assy VWG2048

2 • • • • •
NSP 3 Motor VXM1079
NSP 4 Motor VXM1073

NSP 5 Pickup Assy VWY1055

6 Table Sheet DEC2040

7 Screw VBA1058

8 Centering Spring VBH1278

9 • • • • •

10 Skew Spring VBH1303
11 Gear Spring VBH1308

NSP 12 Reflected Sheet VEC1959

13 Guide Bar VLL1504
14 Sub-guide Bar VLL1505
15 Hold Spring VNC1017

NSP 16 Magnet Holder VNE2070
NSP 17 Motor Base VNE2218
NSP 18 Cover VNE2155

19 Centering Ring VNL1746

NSP 20 Disc Table VNL1747

NSP 30 Magnet VYM1024

NSP 37 Screw PBA1069

21 • • • • •
22 FFC Holder VNL1802
23 Mechanism Base VNL1806
24 • • • • •
25 Gear A VNL1808

26 Gear B VNL1809
27 Gear C VNL1810
28 Slider VNL1811
29 Gear D VNL1814

31 Screw JGZ20P030FMC
32 Screw JGZ17P028FMC
33 Screw VBA1051
34 Magnet Holder Assy VXX2507
35 Spindle Motor Assy VXX2580

36 Carriage Motor Assy VXX2650

9

1

23

DVD-V7400, DVD-V7300D

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

SPDL

MOTOR

FCS

OEIC

TRKG

PICKUP
ASSY

LOSB

(24P)

10

7,6,

3,2
21

24
22
23

CN255

U-, U+
V-, V+

W-, W+

WOUT
VOUT
UOUT

10

7,6,
3,2

21
24
22
23

4, 6
5, 8

9, 10

1
2
3

F_RTN
F_DRV
T_DRV

T_RTN

IC251

BA6849FP

9,10

22

11.12

24

13.14

21
2
4

7

VREF

SPDO

CN251

FG

ASSY

CN302

(8P)

2

7

1

8

M

MOTOR

5
3

CN202

(8P)

B

CARRIAGE

B

4
6

C

SMEB
ASSY

LOADING MOTOR

M

21

21

(12P)

CN301

6
4

7
9

CN303
CN401

(12P)

CN253

7
9

6
4

SPDB
ASSY

SLDR_R
SLDR_F

K

LOAD+
LOAD-

(12P)

CN252

7,6,

(24P)(24P)(24P)

CN120CN257 CN258

10

10

7,6,
3,2

3,2
21

21

24

24

22

22

23

23

CN252

1

1

2

2

4

4

(12P)

CN1030

7

7

9

9

6

6

4

4

VREF

D

B1-B4

13 12 10 9

14

SPDL & FTS

15
34

M56788FP

35

DVDM ASSY

RFRF

3 54

RF IC

6-9

IC101

LA9701M

3
20
17

DRIVER

IC352

37

LODDRV

46
56
57
42
35

FG

SPDO

FDO
TDO

SLDO

RFO

DSPRF

BH
PH
FE
TE

32 33 30 31 39

55
46

47
48

45

SERVO DSP

LC78652W

Q105

IC201

14

16M

16M

33M

107

4

170

DVD

DECODER

MY CHIP

IC701

PD4995A

SYSTEM

CONTROL CPU

SH1 BASE ASIC

IC601

PD3410A

42

87

72

4

SD0-SD7
57-60
63-66

SREQ

56

CDDATA

111

4M DRAM

IC702

MN414800CSJ-07

WORK SRAM

TC55V2001F-85L

149,150,
152-155,

158,159

162

48

(2M)

IC604

27M

36/16M

55 64

LOMB

A

ASSY

: RF Signal Route
: Audio Signal Route (L ch)

(HP)

: HEAD PHONE Signal Route (L ch)

(V)

: V Signal Route

(Y)

: Y Signal Route

C

D

(C)
(R)
(G)
(B)

JA751

VIDEO

R-Y

JA752

B-Y

NTSC
/PAL

S750

SYNC IN

JA753

: C Signal Route

: R Signal Route
: G Signal Route
: B Signal Route

J

Y

V+5D2

V+5D2

ON/OFF

EXTB
ASSY

75Ω

S901

Q901

CN751

10

9
7
5
3
2

(10P)

VIDEO
Pr
Pb
Y
NTSC/PAL
CSYNC

DOUT0

ADATA

16M

5

IC22
TC7WH74FU

1

27M

33M

36/16M

6

5

1

CLOCK GENERATOR

IC21

CY2081SL-655

1

13.824M

IC73

TC7SHU04F

(2P)

CN71

1 2

3-5 CONVERTER

IC807

TC74VHCT541ADT

4716

14

VIDEO ENCODER

IC806

MC44724A

39-46

VIDEO

FILTER

Q807

OUTV

1

Q809

OUTY

4

Q811

OUTC

7

F852

Q808

Q810

Q812

1
I
4

6

7

10

12

8

7

1

CN106

CN905

CN901

(7P)

TXD, RXD
DTR, CTS

(17P)

AODTIAAC3J

ADTA0ADA0

(15P)

(V)

V

(Y)

Y

(C)

C

NTSC/PAL

VSEL_SW

10

1234

5

678

DVD-V7400, DVD-V7300D

MPEG2

DECODER

MITUBISHI

AV-1

IC801

M65773AFP

16M SDRAM

IC802

MB811171622A

-100FN

FLASH

MEMORY

IC603

DYW1662

YCBR0-7

(Y0-Y7)

95-98,

100-103

DOUT0

74

AD0,ADD

71

EDO DRAM

IC803

M5M4V18165

DTP-6S

M + 6V

+12V
+12V

+5V

+3.3V

EV+5V

(26P)

CN110

(26P)

1,2

10
12

13
16

22

CN201

1,2

5

5

7

7

10

|

|

12

13

|

|

16

22

L

SYPS ASSY

F

KEYB ASSY

CN101

LIVE

1
2

NEUTRAL

(7P)

CN152

4
6
7

HP L

EVER +5

SEL IR

CHASSIS GND

(7P)

CN191

4
2
1

AC INLET

DVD-V7300D
WYV/RB only

G

HPIR ASSY

V+5R

AC Power Cord

DVD-V7400
KU/CA only

VR181

JA181
HP. OUT

A

JA191

(6P)

CN153

MCLK

KCLK
SW+5V
MDATA
KDATA

5
4
3
2
1

MCLK

KCLK
SW+5V
MDATA
KDATA

2
3
4
5
6

(6P)

CN801

V+5R

VOUT

VCC

EXT CONTROL

Q191

REM. RECIVER

JA801

MOUSE
and
KEY BOARD

B

4
I
7

12

11

2
1

10

12

8

7

1

CN601

(15P)

(7P)

CN201

TXD, RXD
DTR, CTS

(17P)

SUBB ASSY

CN302

AC3

ADTA0

DIN

(2P)

CN301

VCXO
X230

V

Y

C

NTSC/PAL

V+5D1

E

IC300

PCM1716E

S401

VIDEO OUT

SELECT

VOUT L

Mode

Control IC

IC101

PD4954

IC302

NJM4556AM

IC230

NJM2100M

(V)

(Y)

(C)

44

I

45

IC303

NJM4556AM

3

VIDEO

10

AMP

IC501

LA7135AM

6

H

MCLK

MCLK

MDATA

MDATA

CN102

21

(Y)

(17P)

SW+5V

CN151

(17P)

SW+5V

CN101

V+5DV+5E

(26P)

(C)

19

I

26

11

I

14

2

16

JAMMAJAMM A, B, C, D, E

TXD, RXD
DTR, CTS

LOUT

AC3

MONO

CSYNC

NTSC/PAL

(26P)

CN602

1
I
8

13

I

16

207

25
225
11

CSYNC

8

KCLK

KDATA

13 1454 12 15 16 17

HP L

SEL IR

KCLK

KDATA

EVER +5

(HP)

Q201

23
15
19

17
21
13

5 414 13 6 3 2 1

JAMM X, Y, Z

SYNC SEP

IC201

LM1881M

(V)

49

I

50
27

I

28
21

I

24
67

I

68
39

PS2B ASSY

I

JACB ASSY

JAA- E, JAX- Z

IC701

MAX202ESE

IC611 L611

Q505,
Q506

(V)

VIDEO

CB

Y1

CR
246 1

9

(V)

(Y)

(C)

CN653

(10P)

C

JA702

RS-232C

JA604

AUDIO OUT LCH

JA610

AC-3/PCM
DIGITAL
AUDIO
OUT

JA603

AUDIO OUT
(MONO)

COMPOSITE
VIDEO OUT

(Y)

(C)

JA602

S VIDEO
OUTPUT

D

11

5

6

7

8

1

23

4

DVD-V7400, DVD-V7300D

3.2 LOMB, LOSB, SMEB ASSYS and OVERALL WIRING DIAGRAM

A

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and P ARTS LIST" or "PCB PARTS LIST".

HPIR ASSY
(DWG1530)

CN191

CN152

CN602CN103CN101CN151

D

G

B

PS2B ASSY
(DWG1531)

CN153CN801

F

D 1/4- D 4/4

CN106CN201

KEYB ASSY
(DWG1529)

H

SUBB ASSY

(DVD-V7400/KU/CA: DWG1528)

(DVD-V7300D/WYV/RB: DWG1527)

CN602

CN102

CN302

CN905

DVDM ASSY

(DVD-V7400/KU/CA: DWS1299)

(DVD-V7300D/WYV/RB :DWS1305)

E

C

(MONO)

JACB ASSY

(DVD-V7400/KU/CA: DWV1184)

(DVD-V7300/WYV/RB: DWV1189)

CN601 CN901CN653CN751

E 1/2- E 2/2

CN71CN301

I

EXTB ASSY

D

(DWV1185)

J

12

1234

5

678

DVD-V7400, DVD-V7300D

CN252

SPINDLE

CN1030

LOADING
SLIDER

CN120 CN258

CN251

CN252

LOSB ASSY

B

CN253

CN255

Short Open

CN301

(S)

(S)

SPINDLE MOTOR
VXM1073

(VWG1885)

VSK1011

CN303

A

SPDB ASSY(DWG1532)

K

CN257 CN000

(T)
(F)
(F)

(F)
(F)

(T)

S301

CN302

CN401

LOMB ASSY
(VWG1886)

(T)

(F)
(F)

(T)

CN201

S201

DSG1016

CN202

C

SMEB ASSY
(VWG2048)

: RF SIGNAL ROUTE
: FOCUS SERVO LOOP LINE

(F)

: TRACKING SERVO LOOP LINE

(T)

: SLIDER SERVO LOOP LINE

(S)

A

B

CN110 CN201

5

(F)
(T)
(T)
(F)

L

SYPS ASSY
(DWR1338)

CN101

6

(F)
(T)
(T)
(F)

CHASSIS GND

AC INLET

VKP2116

AC Power Cord
DVD-V7400/KU/CA: VDG1073
AC120V 60Hz

DVD-V7300D
WYV/RB only

DVD-V7400
KU/CA only

7

C

D

CBA

8

13

1

DVD-V7400, DVD-V7300D

3.3 DVDM ASSY (1/4)

D 1/4

A

CN110

VKN1479

B

23

DVDM ASSY (DVD-V7400/KU/CA: DWS1299)

(DVD-V7300D/WYV/RB: DWS1305)

1

D

2/4

D

2/4

(DVD) (DVD)

D

2/4

(CD)

4

CN201

VKN1324

2

D

2/4

4

UMX1N

(CD)

(F)

D

2/4

UMX1N

D

2/4

UMX1N

D

2/4

CN201

D

L

CN120

VKN1484

C

CN258

K

2/4

(F)

(F)
(F)
(T)

(T)

(T)
(F)
(F)

D

(F)
(T)

(F)
(T)
(T)
(F)

2/4

HN1A01F

(T)

(T)

IMX1IMX1

HN1A01F

(DVD)

(CD)

(T) (T)

D

D

2/4

2/4

D

UMX1N

2/4

CN1030

VKN1471

D

CN252

K

14

1/4

D

1234

(S)

(S)

D

2/4

D

2/4

IC352 :

SPDL & FTS

DRIVER

(F)

(T)

(T)

(F)

(S)

(F)

(S)

(T)

(S)

5

678

DVD-V7400, DVD-V7300D

(DVD)

(DVD)

: The power supply is shown with the marked box.

: RF SIGNAL ROUTE
: ROM DATA SIGNAL ROUTE

(F)

: FOCUS SERVO LOOP LINE

(T)

: TRACKING SERVO LOOP LINE

(S)

: SLIDER SERVO LOOP LINE

V+5E

D

2/4

FOR CHECKER

D

3/4

6

10K

10K

A

B

D

2/4

D

2/4

(CD) (CD)

(S)

(F)

(T)

D

2/4

D

7

2/4

5

C

IC751

D

2/4

8

D

D

2/4

4/4

9

10

11

CN252

VKN1575

K

CN251

D

2/4

D

2/4

D

2/4

D

1/4

D

5

6

7

8

15

1

DVD-V7400, DVD-V7300D

3.4 DVDM ASSY (2/4)

23

4

D 2/4

A

B

DVDM ASSY (DVD-V7400/KU/CA: DWS1299)

(DVD-V7300D/WYV/RB: DWS1305)

DYW1662

TC55V2001F-85L

3 TO 5
CONVERTER

D

1/4

D

1/4

D

4/4

MC74VHCT541ADT

D

3/4

5 TO 3
CONVERTER

MC74VHCT541DT

CN106

CN201

E 1/2

CSYNC

D

4/4

D

3/4

D

3/4

D

4/4

(V_SEL)

X601
20MHz
DSS1110

C

D

3/4

D

D

D

1/4

D

1/4

D

D

D

1/4

D

1/4

1/4

D

D

D

1/4

D

1/4

3/4

D

1/4

4/4

1/4

1/4

D

1/4

RB521S-30

D

1/4

D

3/4

RB521S-30

16

2/4

D

1234

5

678

DVD-V7400, DVD-V7300D

: The power supply is shown with the marked box.

: AUDIO SIGNAL ROUTE
: ROM DATA SIGNAL ROUTE

A

MN414800CSJ-07

D

2/4

D

3/4

DVD ENCODER

D

4/4

D

3/4

D

4/4

B

D

1/4

D

1/4

D

1/4

D

1/4

3

D

3/4

D

3/4

D

1/4

D

1/4

D

1/4

CN103

D

3/4

D

D

1/4

1/4

C

D

E 1/2

CN602

2/4

D

5

6

7

8

17

1

DVD-V7400, DVD-V7300D

3.5 DVDM ASSY (3/4)

23

4

D 3/4

A

B

DVDM ASSY (DVD-V7400/KU/CA: DWS1299)

(DVD-V7300D/WYV/RB: DWS1305)

D

2/4

100/10

C

MPEG2 DECODER

MITSUBISHI AV1

3 - 5 CONVERTER

D

18

3/4

D

1234

100/10

D

2/4

D

D

2/4

2/4

TC74VHCT541ADT

5

678

DVD-V7400, DVD-V7300D

: AUDIO SIGNAL ROUTE
: ROM DATA SIGNAL ROUTE

(V)

: VIDEO SIGNAL ROUTE

(Y)

: Y SIGNAL ROUTE

(C)

: C SIGNAL ROUTE

(R)

: R SIGNAL ROUTE

(G)

: G SIGNAL ROUTE

(B)

: B SIGNAL ROUTE

D

2/4

D

2/4

CLOCK GENERATOR

PXCLK

27MVE

AV1_VENC

D

4/4

D

2/4

D

1/4

D

4/4

A

B

D

2/4

C

D

2/4

D

4/4

D

D

4/4

3/4

D

5

6

7

8

19

1

DVD-V7400, DVD-V7300D

3.6 DVDM ASSY (4/4)

DVDM ASSY

D 4/4

A

B

(DVD-V7400/KU/CA: DWS1299)
(DVD-V7300D/WYV/RB: DWS1305)

23

D

2/4

D

2/4

MC74VHCT541ADT

3 TO 5 CONVERTER

D

3/4

D

3/4

: AUDIO SIGNAL ROUTE

(V)

: VIDEO SIGNAL ROUTE

(Y)

: Y SIGNAL ROUTE

(C)

: C SIGNAL ROUTE

(R)

: R SIGNAL ROUTE

(G)

: G SIGNAL ROUTE

(B)

: B SIGNAL ROUTE

(L9390: QTL1015)
(L9400: QTL1015)

HIBSLA1

(L9430: QTL1015)
(L9440: QTL1015)
(L9450: QTL1015)
(L9460: QTL1015)
(L9470: QTL1015)

(L9480: QTL1015)

CN905

VKN1503

4

NC
NC
PD

NC

E 2/2

CN302

CN901

(Y)

(V)

D

2/4

(C)

I

CN601

D

2/4

D

2/4

C

D

2/4

(C)
(Y)

(V)

D

1/4

R891: DVD-V7400/KU/CA 360
DVD-V7300D/WYV/RB 560

(Y)

(Y)

(Y)

D

3/4

(V)

D

(C)

20

4/4

D

1234

(V)

(C)

(V)

(C)

(V)

(C)

WAVEFORMS

Note : The encircled numbers denote measuring point in the schematic diagram.

Measurement condition : No. 1 to 4 and 6 to 11 : Disc MA1, Title 1-chp 1

DVDM ASSY

Foot of R169 (RF)

1

V: 100mV/div. H: 0.2µsec/div.

No. 5 : CD, ABEX-784 Track 1
No. 12 to 14 : MJK1, Title 1-chp 4 or T2-1
No. 15 to 17 : MJK1, Title 1-chp 5 or T2-19
No. 18 to 20 : T2-19, Color-bar (WY and WV Types only)

Q281 - Collector (FG)

7

V: 1V/div. H: 5msec/div.

GND

GND

DVD-V7400, DVD-V7300D

CN201 - pin 5, 6 (RFO)

2

V: 500mV/div. H: 0.1µsec/div.

IC701 - pin 170 (MY CHIP input)

3

V: 1V/div. H: 0.2µsec/div.

CN201 - pin 9, 10 (Tracking Error)

4

(AI-Inner Tracking Off)

V: 500mV/div. H: 2msec/div.

GND

GND

Foot of R261 (FPWM)

8

V: 1V/div. H: 5msec/div.

Foot of R262 (VPWM)

9

V: 1V/div. H: 5msec/div.

Foot of R263 (PPWM)

10

V: 1V/div. H: 5msec/div.

GND

GND

GND

IC201 - pin 39 (EFM before slice)

5

V: 1V/div. H: 1µsec/div.

IC201 - pin 1 (EFM)

6

V: 1V/div. H: 0.2µsec/div.

GND

GND

Foot of R264 (RPWM)

11

V: 1V/div. H: 5msec/div.

GND

21

1

DVD-V7400, DVD-V7300D

3.7 SUBB ASSY (1/2)

A

E 1/2

SUBB ASSY
(DVD-V7400/KU/CA: DWG1528)
(DVD-V7300D/WYV/RB: DWG1527)

B

23

4

(DOWN)

(UP)

CN151

F

(HP)

CN101

E

2/2

(HP)

C

MODEL

DVD-V7400/KU/CA
DVD-V7300D/WYV/RB

***

No Parts

R1002

DCN1094

Dorein

R1003

DCN1094

CN602

I

CN106

E

2/2

D

E

2/2

CN102

22

1/2

E

1234

CN201

D 2/4

E

2/2

5

678

DVD-V7400, DVD-V7300D

A

: AUDIO SIGNAL ROUTE
: H.PHONE SIGNAL ROUTE

(HP)

CAUTION:FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
REPLACE ONLY WITH SAME TIME NO. ICP-N15, MFD BY
ROHM CO., LTD. FOR IC100.

DCN1094

E

2/2

SYSTEM RESET IC

B

CN602

D 2/4

CN103

C

D

1/2

E

5

6

7

8

23

1

DVD-V7400, DVD-V7300D

3.8 SUBB ASSY (2/2)

A

23

4

E 2/2

SUBB ASSY (DVD-V7400/KU/CA: DWG1528)
(DVD-V7300D/WYV/RB: DWG1527)

CN302

B

E

1/2

CN905

D 4/4

E

1/2

C

VCXO F0 ADJ

E

YB

D

1/2

24

2/2

E

1234

5

678

DVD-V7400, DVD-V7300D

A

: AUDIO SIGNAL ROUTE
: H.PHONE SIGNAL ROUTE

(HP)

(HP)

(HP)

B

CN301

CN71

D 3/4

(HP)

E

1/2

C

E

1/2

(HP)

D

2/2

E

5

6

7

8

25