Pioneer DV-250 Service manual

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DV-353-K

3

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DVD PLAYER

DV-353-K

DV-353-S
DV-250
DV-251

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

Model Power Requirement

DV-353-K AC120V 1
DV-353-K AC120V 1
DV-353-S AC120V 1
DV-250
DV-250
DV-251

KUXJ
KCXJ
KUXU/CA
KUXU
KCXU
KUXQ

Type

AC120V 1
AC120V
AC120V

Regional restriction

codes (Region No.)

1
1

ORDER NO.

RRV2592

Remarks

For details, refer to "Important symbols for good services".

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

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

PIONEER CORPORATION 2002

T – ZZE APR. 2002 Printed in Japan

CONTENTS

1. SPECIFICATIONS .................................................................................................................................................5

2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................... 6

2.1 PACKING ........................................................................................................................................................6

2.2 EXTERIOR SECTION ..................................................................................................................................... 8

2.3 LOADING MECHANISM ASSY ................................................................................................................... 10

2.4 TRAVERSE MECHANISM ASSY-S ............................................................................................................ 14

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ............................................................................................ 16

3.1 BLOCK DIAGRAM ....................................................................................................................................... 16

3.1.1 SIGNAL ROUTE........................................................................................................................................ 16

3.1.2 POWER SUPPLY BLOCK ........................................................................................................................ 18

3.1.3 WAVEFORMS ........................................................................................................................................... 19

3.2 LOAB ASSY and OVERALL WIRING DIAGRAM ........................................................................................20

3.3 FJMB ASSY 1/5 [FRONT END BLOCK] ...................................................................................................... 22

3.4 FJMB ASSY 2/5 [BACK END BLOCK] ........................................................................................................ 24

3.5 FJMB ASSY 3/5 [AUDIO BLOCK] ............................................................................................................... 26

3.6 FJMB ASSY 4/5 [VIDEO BLOCK]................................................................................................................ 28

3.7 FJMB ASSY 5/5 [FL CONTROL BLOCK] .................................................................................................... 30

3.8 IRKY and PSWB ASSYS ............................................................................................................................. 32

3.9 POWER SUPPLY UNIT (VWR1351) ........................................................................................................... 34

3.10 POWER SUPPLY UNIT (VWR1353) ......................................................................................................... 35

4. PCB CONNECTION DIAGRAM ......................................................................................................................... 37

4.1 LOAB ASSY ................................................................................................................................................. 37

4.2 FJMB ASSY.................................................................................................................................................. 38

4.3 IRKY and PSWB ASSYS ............................................................................................................................. 42

4.4 POWER SUPPLY UNIT (VWR1351) ........................................................................................................... 43

4.5 POWER SUPPLY UNIT (VWR1353) ........................................................................................................... 44

5. PCB PARTS LIST ............................................................................................................................................... 45

6. ADJUSTMENT.................................................................................................................................................... 48

6.1 ADJUSTMENT ITEMS AND LOCATION ..................................................................................................... 48

6.2 JIGS AND MEASURING INSTRUMENTS................................................................................................... 48

6.3 NECESSARY ADJUSTMENT POINTS ....................................................................................................... 49

6.4 TEST MODE................................................................................................................................................. 50

6.5 MECHANISM ADJUSTMENT ...................................................................................................................... 51

7. GENERAL INFORMATION ................................................................................................................................ 54

7.1 DIAGNOSIS.................................................................................................................................................. 54

7.1.1 TEST MODE.............................................................................................................................................. 54

7.1.2 DISPLAY OF THE MECHANISM ERROR HISTORY .............................................................................. 60

7.1.3 TEST POINTS LOCATION & WAVEFORMS ........................................................................................... 64

7.1.4 TROUBLE SHOOTING ............................................................................................................................. 68

7.1.5 SEQUENCE AFTER THE POWER ON .................................................................................................... 70

7.1.6 DISASSEMBLY ......................................................................................................................................... 71

7.2 IC .................................................................................................................................................................. 76

7.3 CLEANING ................................................................................................................................................... 94

8. PANEL FACILITIES............................................................................................................................................ 95

4

DV-353-K

1. SPECIFICATIONS

General

System............................DVD-Video, Video CD,

CD and MP3 files

Power requirements..................AC 120 V, 60 Hz

Power consumption.....................................13 W

Power consumption (standby)

Weight.........................................2.4 kg (5lb 5oz)

Dimensions

DV-353.............420 (W) x 55 (H) x 278 (D) mm

9

/16 (W) x 2 3/16 (H) x 10 15/16 (D) in.)

(16

DV-250/251......420 (W) x 55 (H) x 276 (D) mm

9

/16 (W) x 2 3/16 (H) x 10 14/16 (D) in.)

(16

Operating temperature.................+5°C to +35°C

Operating humidity.............................5% to 85%

S-Video output

Y (luminance) - Output level...........1 Vp-p (75 Ω)

C (color) - Output level............286 mVp-p (75 Ω)

Jack.................................................S-Video jack

Video output

Output level....................................1 Vp-p (75 Ω)

Jack......................................................RCA jack

........................0.3 W

(+36°F to +96°F)

(no condensation)

Audio output (1 stereo pair)

Output level..........................During audio output

200 mVrms (1 kHz, –20 dB)

Number of channels...........................................2

Jacks.....................................................RCA jack

Digital audio characteristics

Frequency response....................4 Hz to 44 kHz

(DVD fs: 96 kHz)

S/N ratio...................................................118 dB

Dynamic range.........................................101 dB

Total harmonic distortion......................0.0016 %

Wow and flutter.................Limit of measurement

(0.001% W. PEAK) or lower

Digital output

Optical digital output...............Optical digital jack

Coaxial digital output............................RCA jack

Accessories

Audio/video cable...............................................1

Power cable.......................................................

Remote control...................................................1

AA/R6P dry cell batteries...................................2

Operating Instructions........................................1

Warranty card.................................................... 1

1

B

Component Video output (Y, P

, PR)

Output level..............................Y: 1.0Vp-p (75 Ω)

B, PR: 0.7 Vp-p (75 Ω)

P

Jacks...................................................RCA jacks

Accessories

Remote Control : VXX2800

OPEN/CLOSE

STANDBY/ON

0

ANGLEAUDIO

SUBTITLE

CLEAR

23

1

ENTER

56

4

0

789

TOP MENU

MENU

ENTER

SETUP

RETURN

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PLAY MODE SURROUND ZOOM DISPLAY

Audio/Video Cable (L=1.5m): XDE3049 AA/R6P Dry Cell Batteries

White

Yellow

Power Cable : ADG7022

Red

• The specifications and design of this
product are subject to change without
notice, due to improvement.

• Manufactured under license from Dolby
Laboratories. “Dolby” and the double-D
symbol are trademarks of Dolby Laboratories.

• “DTS” is a registered trademark of Digital
Theater Systems, Inc.

• TruSurround and the
trademarks of SRS Labs, Inc. TruSurround
technology is incorporated under license from
SRS Labs, Inc.

® symbol are

DV-353-K

5

(1) PACKING PARTS LIST

(2) CONTRAST TABLE

Mark No. RemarksSymbol and Description

Part No.

DV-353-K DV-250 DV-251DV-353-S

KUXJ KCXJ KUXU/CA KUXU KCXU KUXQ

NSP
NSP23

6
9

10

11
12

Warranty Card
Dry Cell Battery (R6P, AA)
Operating Instructions (French)
Pad L
Pad R

Paper Board
Packing Case

ARY7057
VEM1031

Not used
VHA1295
VHA1296

VHC1088
VHG2237

ARY7045
VEM1031
VRC1147
VHA1295
VHA1296

VHC1088
VHG2187

ARY7057
VEM1010

Not used
VHA1297
VHA1298

VHC1089
VHG2169

ARY7057
VEM1030

Not used
VHA1297
VHA1298

VHC1089
VHG2158

ARY7045
VEM1030
VRC1147
VHA1297
VHA1298

VHC1089
VHG2160

ARY7057

VEM1030

Not used
VHA1297
VHA1298

VHC1089
VHG2197

DV-353-K/KUXJ, KCXJ, DV-353-S/KUXU/CA, DV-250/KUXU, KCXU and DV-251/KUXQ are constructed the same except for
the following :

Mark No. Description Part No.

> 1 Power Cable ADG7022
NSP 2 Warranty Card See Contrast table (2)
NSP 3 AA/R6P Dry Cell Battery See Contrast table (2)

4 Polyethylene Bag VHL1051
5 Operating Instructions VRB1285

(English)

6 Operating Instructions See Contrast table (2)

(French)
7 Remote Control VXX2800
8 Audio/Video Cable (L=1.5m) XDE3049
9 Pad L See Contrast table (2)

10 Pad R See Contrast table (2)

11 Paper Board See Contrast table (2)
12 Packing Case See Contrast table (2)
13 Seat Z23-007
14 Battery Cover VNK4997

DV-353-K

7

2.2 EXTERIOR SECTION

25

26

23

Refer to
"2.3 LOADING MECHANISM ASSY".

NON-CONTACT

SIDE

CONTACT

SIDE

12

23

8

23

23

23

22

B

E

D

C

25

22

23

23

B

A

22

F

E

D

C

13

22

E

11

22

7

10

B

5

22

14

22

F

6

3

24

D

24

24

21

24

24

C

24

24

16

1

24

17

24

24

A

4

DV-353-K

9

19

20

15

2

16

18

8

(1) EXTERIOR PARTS LIST

Mark No. Description Part No.

NSP 1 IRKY Assy VWG2344
NSP 2 PWSB Assy VWG2345

3 FJMB Assy VWS1515
4 Connector Assy PF05PP-Q12
5 Connector Assy PF13PP-D25

6 Connector Assy PG05KK-E37

> 7 POWER SUPPLY Unit VWR1351

(or VWR1353)

NSP 8 Loading Mechanism Assy See Cotrast table (2)

9 Leg Assy SX AEC7113

10 Cord Clamper RNH-184

11 Pcb Support VEC2184

NSP 12 Base Chassis See Cotrast table (2)

13 Rear Panel See Cotrast table (2)
14 PCB Base See Cotrast table (2)
15 DVD V Plate VAM1121

16 Rubber Foot VEB1325
17 FP Angle See Cotrast table (2)
18 Tray Panel See Cotrast table (2)
19 Front Panel Assy See Cotrast table (2)
20 Pioneer Badge See Cotrast table (2)

NSP 21 Energy Star Label AAX7876

22 Screw BBZ30P060FMC
23 Screw BBZ30P080FZK
24 Screw BBZ30P100FZK
25 Screw See Cotrast table (2)

26 Bonnet Case S See Cotrast table (2)

(2) CONTRAST TABLE

DV-353-K/KUXJ, KCXJ, DV-353-S/KUXU/CA, DV-250/KUXU, KCXU and DV-251/KUXQ are constructed the same except for
the following :

Part No.

Mark No. RemarksSymbol and Description

NSP
NSP812

Loading Mechanism Assy
Base Chassis

13

Rear Panel

14

PCB Base

17

FP Angle

18

Tray Panel

19

Front Panel Assy

20

Pioneer Badge

25

Screw

26

Bonnet Case S

DV-353-K DV-250 DV-251DV-353-S

KUXU/CA

VWT1196
VNA2409
VNA2421
VNE2277
VNE2267

VNK4952
VXA2486
XAM3006

BCZ40P060FZK

VXX2821

VWT1197

VNA2410
VNA2437
VNE2278
VNE2270

VNK4973
VXA2496

VAM1129

BCZ40P060FNI

VXX2823

KUXU KCXUKUXJ KCXJ

VWT1197
VNA2410
VNA2435
VNE2278
VNE2270

VNK4959

VXA2490

VAM1129

BCZ40P060FZK

VXX2830

KUXQ

VWT1188
VNA2410
VNA2436
VNE2278
VNE2270

VNK4962

VXA2491

VAM1130

BCZ40P060FZK

VXX2831

DV-353-K

9

2.3 LOADING MECHANISM ASSY

Note :

Refer to
" Application of Lubricant".

Daifree
GEM1036

2
Refer to
"2.4 TRAVERSE MECHANISM

6

To FJMB

CN251

8

8

ASSY-S".

8

23

15

14

12

Lubricating Oil
GYA1001

13

22

9

22 22

16

8

20

3

17

21

7

A

11

1

A

A

4

5

22

10

Lubricating Oil
GYA1001

18

22

19

10

DV-353-K

(1) LOADING MECHANISM ASSY PARTS LIST

Mark No. Symbol and Description

Part No.

Remarks

VWT1196 VWT1197 VWT1188

NSP 16LOAB Assy

Flexible Cable (26P)

VWG2346

VDA1864

VWG2279

VDA1865

(2) CONTRAST TABLE

VWT1196, VWT1197 and VWT1188 are constructed the same except for the following :

Mark No. Description Part No.

NSP 1 LOAB Assy See Contrast table (2)

2 Traverse Mechanism Assy-S VXX2782
3 Loading Motor Assy VXX2505
4 Motor Pulley PNW1634
5 Carriage DC Motor / 0.3W PXM1027

6 Flexible Cable (26P) See Contrast table (2)
7 Connector Assy 2P VKP2253
8 Float Rubber VEB1327
9 Belt VEB1330

10 Stabilizer VNE2253

11 Loading Base VNL1917
12 Float Base DVD VNL1918
13 Drive Cam VNL1919
14 Gear Pulley VNL1921
15 Loading Gear VNL1922

16 Drive Gear VNL1923
17 SW Lever VNL1925
18 Clamper Plate VNE2251
19 Bridge VNE2252
20 Clamper VNL1924

21 Screw JGZ17P028FMC
22 Screw Z39-019
23 Tray VNL1920

DV-353-K

11

Application of Lubricant

No. 11
Loading Base

No. 13
Drive Cam

Lubricating Oil
GYA1001

Around the shaft

Lubricating Oil
GYA1001

Lubricating Oil
GYA1001

Lubricating Oil
GYA1001

Rear View

No. 23
Tray

Top View

Inner side of a ditch

Lubricating Oil
GYA1001

Inner side of a ditch

Lubricating Oil
GYA1001

Daifree
GEM1036

Concave of unevenness

Concave of unevenness

Daifree
GEM1036

Top View

No. 23
Tray

Bottom View

No. 13
Drive Cam

Daifree
GEM1036

Concave of unevenness

Inner side of a ditch

Daifree
GEM1036

Side of the rib

Daifree
GEM1036

12

DV-353-K

2.4 TRAVERSE MECHANISM ASSY-S

18

17 (Torque : 0.12 ± 0.01 N•m)

Silicone Adhesive

12

8

GEM1037

3

13

18

10

1

16

18

10

7

14

6

19

4 (Adjustment Screw)

5

Screw Tight

5

GYL1001

17 (Torque : 0.12 ± 0.01 N•m)

17
(Torque : 0.12 ± 0.01 N•m)

15

Silicone Adhesive
GEM1037

9

Silicone Adhesive
GEM1037

14

16

2

NON-CONTACT

SIDE

11

CONTACT SIDE

DV-353-K

TRAVERSE MECHANISM ASSY-S PARTS LIST

•

Mark No. Description Part No.

1 Spindle Motor VXM1088

(or VXM1089)

2 Stepping Motor VXM1090

(or VXM1091)
3 Pickup Assy-S OXX8003
4 Skew Screw VBA1080
5 Skew Spring VBH1335

6 Guide Bar VLL1514
7 Sub Guide Bar VLL1515
8 Hold Spring VNC1017
9 Joint Spring VNC1019

10 Support Spring VNC1020

NSP 11 Mechanism Chassis VNE2248

12 Slider VNL1811
13 Spacer VNL1913
14 Joint VNL1914
15 FFC Holder VNL1915

16 Screw BBZ20P050FZK
17 Tapping Screw OBA8009
18 Screw PMA26P100FMC
19 Damper Sheet VEB1335

DV-353-K

15

1

23

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

3.1.1 SIGNAL ROUTE

Spindle

Motor

B

C

PICKUP

ASSY

20
21
15
16
19
17

24
25
26
23

Stepping

Motor

(Carriage)

M

(26P)

B1

B2

B3
B4

A
C

T_RTN
T_DRV

F_RTN
F_DRV

ST1­ST1+
ST2+

ST2-

Work RAM for Error Correction

IC302

K6T1008V2E-TB70

1M SRAM

1

RF(TP)

CN151

7

6
12
11

8
10

3

2

1

4

CN3

4

3

2

1

(26P)

(4P)

3

RFSACD

L6315ATXXT

A

10

FRONT END IC

B

12
18
16
25
24

13
12
10

• RF Demodulation

C

• Servo Control

D

• Servo Decode

E

• Error Correction

F

FACT

123

3 20

IN3-

IC351

M56788AFP

FTS Driver
Focus, Tracking,
Stepper and
Loading Drive

VM1-35VM2-31VM2+32VM5-15VM5+

34

9

VM4­VM4+
VM3+
VM3-

VM1+

IC301

FDO

X301

20MHz

131

TACT

124

IN4-

132

OUT_DATA(0) S_DATA

TDO

IN5-

17

14

FREOUT FREIN

PC(2) PC(6)

4238

FG

Work RAM for MPEG Decode

K4S641632F-TC75

64M SDRAM

FE_DATA

84

SPDL

PDM

LOAD_DRV

16

16

116

15

IC604

120

PIXCLK

HSYNC
_PWM0

IC601

STI5519AVB-B0C

BACK END IC

• System Control

• MPEG Video Decode

• Video Encode

• Video DAC

• Audio Decode
(MP3, Dolby)

• Sub-picture Decode

4

X601

27MHz

3562

IC605 TC7WU04FU

B_OUT

25

G_OUT

26

R_OUT

27

Y_OUT

32

C_OUT

33

CV_OUT

34

PIO381

PIO382

SPDIF

57

SQUEEZ

7

LETTER

8

DOUT

LOD-

-28V

GND

GND

GND

GND

LOD+

H1+

1
2

CN52

CN251

9
8
7
6
5

4
10
11
12

CN401

1

2

3

4

5

6

7

8

9
10
11
12
13

(5P)

(12P)

(13P)

17

H1+

9

H1-H1-

10

H2+H2+

11

H2-H2-

12

H3+H3+

13

H3-H3-

14

A1A1

7

A2A2

4

A3A3

2

IC251

BA6664FM

Spindle

Driver

• Spindle Drive

• FG Detection

2

24

FG

EC

22

5MHz

REMOTE
RECEIVER
UNIT

FG

SPDL PDM

X11

SPS-444L-H

C

IC11 PE5314A

3

4

IC301

FL CONTROL

X1

MICROCOMPUTER

• Main Unit Key Input

X2

• Remote Control Receive

• FL Display Control

KEY1

IR
17

21

5 2 1

IR

KEY1

5 2 1

IRKY ASSY

KEY0

22

CN11

KEY0

(5P)

CN301

(5P)

DAC_SCLK

PCMDATA0

PCKCLK

LRCLK

IC603

VYW1890

8M FLASH ROM

V11

FL TUBE

KEY3

1 1

J301

(3P)

D

PSWB ASSY

A_BCK

51

A_DATA0

52

A_MCLK

55

A_LRCK

56

1

+–

2

M

Loading

CN602

Motor

(2P)

Assy

LOAB ASSY

A

1
2

CN601

(5P)

D

VWR1351: CN101
VWR1353: CN2

E

E

POWER
SUPPLY
UNIT

F1

CN1

(2P)

1 2

LIVE

NEUTRAL

(13P)

1
2
3
4
5
6
7
8

9
10
11
12
13

EV+6V(B)
EV+6V(A)

FLDC+
FLDC-

P-CONT

SW+12V

EV+4V

SW+3.3V

F

AC IN

16

1234

DV-353-K

5

678

A

Q607

Q606

Q605

Q604

Q603

Q602

B/CB

R/CR

Q807,Q808

Q805,Q806

R721

R722

R723

G/Y

S_Y

S_C

V

4 7

8

3

5 6

FJMB ASSY

B

Cb IN

14

CY IN

12

16

6

2

4

Cr IN

Y IN

C IN

V IN

1

2

16

3

BCKIN

DATA

MCLK

LRCKIN

MM1567AJ

6 IN • 6 OUT

VIDEO AMP

• VIDEO

• LPF

• AMP

• Driver

YOUT b

IC801

Audio 2ch DAC

YOUT a

COUT

VOUT b
VOUT a

CYOUT b
CYOUT a

CrOUT b
CrOUT a

CbOUT b
CbOUT a

IC711

PCM1742KE

28
27

33

31
30

25
24

19
18

22
21

Vout L

Vout R

Y

C

V

G/Y

R/Cr

B/Cr

7

8

LOUT

ROUT

1– $: Refer to "3.1.3 WAVEFORMS".

13

C832

14

C822

9

C812

10

C842

12

C862

11

C852

AUDIO LPF

BA4560F
IC731-1/2

2

3

IC731-2/2

5
6

1

7

Q941

Y

C

JA950

S VIDEO

COMPOSITE
VIDEO OUT

Y

COMPONENT

Cr

VIDEO OUT

Cb

OPTICAL

COAXIAL

L

AUDIO
OUT

R

DIGITAL
OUT

B

C

D

E

F

DV-353-K

5

6

7

8

17

1

3.1.2 POWER SUPPLY BLOCK

23

4

A

AC IN

B

POWER SUPPLY
ASSY

E

LIVE

NEUTRAL

F1

VWR1351: CN101
VWR1353: CN2

(13P)

1
2
3
4
5
6
7
8

9
10
11
12
13

EV+6V (B)
EV+6V (A)

-28V

FLDC+

FLDC-

GND

P-CONT

GND

SW+12V

GND

EV+4V

GND

SW+3.3V

CN401

1
2
3
4
5
6
7
8

9
10
11
12
13

(13P)

V+6B

V+6A

-28V

V+12M V+5AV+12D

IC421

MM1565AF

+5V Reg.

V+5S V+5V

IC901

NJM78L05A

+5V Reg.

31

2

IC431

PQ025EZ01ZP

V+3D V+2R5

+2.5V Reg.

IN OUT

FJMB ASSY

B

IC451

MM1385EN

V+4E

C

+3V Reg.

IN OUT

V+3E

IC303

BA18BC0FP

+1.8V Reg.

13

2

LOAB ASSY

A

V+3D

CN601

(5P)

4 4

CN52

(5P)

V+3R5D

IC441

PQ070XZ02ZP

+3.5V Reg.

VIN VOUT

V+3R5D V+3R5A V+1RBD V+1RBA1 V+1RBA2

D

IRKY ASSY

C

V+3E

CN301

(5P)

3 3

CN11

(5P)

V+3E

E

F

18

DV-353-K

1234

5

678

3.1.3 WAVEFORMS

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

FJMB ASSY

B

Measurement condition
No. 3 to 8 : reference A1 (DVD), T2-chp 1

IC301 - pin 3 [RF]

1

V: 200mV/div. H: 0.1µsec/div.

: No. 1 to 2 and 9 to 14 : reference A1 (DVD), T2-chp 19, Color-bar

IC251 - pin 24 [FG]

2

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

IC711 - pin 16 [AUDIO DAC -MCK]

34

V: 1V/div. H: 20nsec/div.

Foot of R721 (IC711 - pin 1)
[AUDIO DAC -BCK]

V: 2V/div. H: 200nsec/div.

A

Foot of R723 (IC711 - pin 3)

5

[AUDIO DAC -LRCK]

V: 2V/div. H: 5µsec/div.

Foot of C842 (IC801 - pin 24, 25)

10

[Component Video output -Y]

V: 1V/div. H: 10µsec/div.

Foot of C852 (IC801 - pin 18, 19)

11

[Component Video output -Pb]

V: 2V/div. H: 10µsec/div.

Foot of C862 (IC801 - pin 21, 22)

12

[Component Video output -Pr]

V: 2V/div. H: 10µsec/div.

IC601 - pin 116 [LOAD_DRV]

15

V: 1V/div. H: 5µsec/div.

GND

Foot of R723 (IC711 - pin 3)

6

[AUDIO DAC -LRCK]

V: 2V/div. H: 500nsec/div.

Foot of R721 (IC711 - pin 1)

7

[AUDIO DAC -BCK]

V: 2V/div. H: 500nsec/div.

Foot of R722 (IC711 - pin 2)

8

[AUDIO DAC -DATA]

V: 2V/div. H: 500nsec/div.

Foot of C832 (IC801 - pin 27, 28)

13

[S Video output -Y]

V: 1V/div. H: 10µsec/div.

10

11

12

[Tray stops] [Tray is opening] [Tray is closing]

Foot of C822 (IC801 - pin 33)

14

[S Video output -C]

V: 1V/div. H: 10µsec/div.

6

7

8

GND

Foot of C812 (IC801 - pin 30, 31)

9

[Composite Video output]

V: 1V/div. H: 10µsec/div.

B

C

13

14

D

IC301 - pin 42 [SPDL_PDM]

16

[STOP→PLAY→STOP] [STOP]

Accelertar

ON

STOP STOPPLAY

Brakes

ON

[PLAY]

V: 2V/div. H: 500nsec/div. V: 2V/div. H: 500nsec/div. V: 2V/div. H: 2msec/div.V: 2V/div. H: 1sec/div.

DV-353-K

5

6

CN251 - pin 12, 11, 10

17

(IC251 - pin 2, 4, 7)

[Spidle driver -A3, A2, A1]

[PLAY]

E

F

19

7

8

1

3.2 LOAB ASSY and OVERALL WIRING DIAGRAM

A

B

23

4

C

D

FJMB ASSY

B

(VWS1515)

E

PB

F

PR

ABCDE

20

1234

DV-353-K

5

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

678

A

IRKY ASSY

C

(VWG2344)

for ##XCN type

PSWB ASSY

D

(VWG2345)

H

POWER SUPPLY UNIT
(VWR1351 or VWR1353)

(F)

: FOCUS SERVO LOOP LINE

(T)

: TRACKING SERVO LOOP LINE

(S)

: SLIDER SERVO LOOP LINE

B

C

(F)

(F)

(T)

(F)

(F)

(F)

(S)

(S)

(S)

(F)

(T)

(F)

(F)

(T)

(T)

STEPPING MOTOR
: VXM1090

(S)

(F)

(F)

LOAB ASSY

A

(VWG2279)

PICKUP ASSY-S
(OXX8003)

SPINDLE
MOTOR
: VXX1088

LOADING
MOTOR ASSY
: VXX2505

D

E

F

CDAB A

DV-353-K

5

6

7

8

21

1

23

3.3 FJMB ASSY 1/5 [FRONT END BLOCK]

A

4

B 1/5

B

FJMB ASSY (VWS1515)

B

2/5

(S)

A

CN601

C

(F)
(F)

PICKUP ASSY

D

E

STEPPING

(T)

(T)
(F)
(F)

MOTOR

17

(S)
(S)
(S)
(S)

2

SPINDLE

MOTOR

F

1/5

B

22

1234

DV-353-K

5

B

2/5

678

A

B

1, 2, #, $: Refer to "3.1.3 WAVEFORMS".

(F)

: FOCUS SERVO LOOP LINE

(T)

: TRACKING SERVO LOOP LINE

(S)

: SLIDER SERVO LOOP LINE

VCC33DAC

C

D

1

VCC18MN

16

E

(F)

(F)

(F)

(F)

(T)

(T)

F

1/5

B

DV-353-K

5

6

7

8

23

1

23

3.4 FJMB ASSY 2/5 [BACK END BLOCK]

A

4

FJMB ASSY

(8M)

B 2/5

B

C

(VWS1515)

3/5

B

15

D

(B/Cb)
(G/Y)
(R/Cr)

(S_Y)
(S_C)
(V)

E

F

2/5

B

24

1234

B

2/5B5/5

B

1/5

DV-353-K

(D)

(D)

5

678

A

5/5

B

2/5

B

B

E

VWR1351: CN101
VWR1353: CN2

: The power supply is shown with the marked box.

(V)

(S_C)

(S_Y)

4/5

B

3/5

B

@: Refer to "3.1.3 WAVEFORMS".

(V)

: V SIGNAL ROUTE

(S_C)

: S-VIDEO OUT C SIGNAL ROUTE

(S_Y)

: S-VIDEO OUT Y SIGNAL ROUTE

(R/Cr)

: R/Cr SIGNAL ROUTE

(G/Y)

: G/Y SIGNAL ROUTE

(B/Cb)

: B/Cb SIGNAL ROUTE

: AUDIO SIGNAL ROUTE

(D)

: AUDIO(DIGITAL) SIGNAL ROUTE

C

D

(R/Cr)

(G/Y)

E

(B/Cb)

F

2/5

B

DV-353-K

5

6

7

8

25

1

23

3.5 FJMB ASSY 3/5 [AUDIO BLOCK]

4

A

B

2/5

B

C

4 87

5 6

B 3/5

FJMB ASSY (VWS1515)

3

D

E

F

26

B

3/5

DV-353-K

1234

5

678

A

3– 8: Refer to "3.1.3 WAVEFORMS".

: AUDIO SIGNAL ROUTE

B

4/5

B

C

D

E

: The power supply is shown with the marked box.

3/5

B

DV-353-K

5

6

7

8

27

F

1

23

3.6 FJMB ASSY 4/5 [VIDEO BLOCK]

A

4

B 4/5

FJMB ASSY (VWS1515)

(D)

2/5

B

B

C

(D) (D) (D)

(S_C)

D

E

F

(V)

(S_Y)

(G/Y)

(B/Cb)

(R/Cr)

(S_C)

(V)

(S_Y)

(G/Y)

(B/Cb)

(R/Cr)

28

B

4/5

DV-353-K

1234

5

678

(D)

(S_Y)

(S_C)

(V)

: V SIGNAL ROUTE

(S_C)

: S-VIDEO OUT C SIGNAL ROUTE

(S_Y)

: S-VIDEO OUT Y SIGNAL ROUTE

(R/Cr)

: R/Cr SIGNAL ROUTE

13

14

(G/Y)

: G/Y SIGNAL ROUTE

(B/Cb)

: B/Cb SIGNAL ROUTE

: AUDIO SIGNAL ROUTE

(D)

: AUDIO(DIGITAL) SIGNAL ROUTE

(D)

A

B

C

(S_C)

(S_Y)

(G/Y)

(B/Cb)

(R/Cr)

9

(V)

10

12

11

(V)

D

(G/Y)

(R/Cr)

(B/Cb)

E

3/5

B

9– !: Refer to "3.1.3 WAVEFORMS".

4/5

B

DV-353-K

5

6

7

8

29

F

1

23

3.7 FJMB ASSY 5/5 [FL CONTROL BLOCK]

A

4

B 5/5

B

C

FJMB ASSY (VWS1515)

D

E

F

30

B

5/5

DV-353-K

1234