Pioneer DV-470-K, DV-470-S Service manual

ORDER NO.

RRV2959

DV-470-S

DVD PLAYER

DV-470-S

DV-470-K

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

										Serial No.
Model	Type					Power Requirement			Region No.	Confirm 3rd & 4th
										alphabetical letters.
DV-470-S	WYXCN					AC220-240V			2	&&TE######$$
DV-470-S	WYXCN/FG					AC220-240V			2	&&TE######$$
DV-470-S	WVXCN					AC220-240V			2	&&TE######$$
DV-470-K	WYXCN					AC220-240V			2	&&TE######$$
DV-470-K	WYXCN/FG					AC220-240V			2	&&TE######$$

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 2004

T-ZZE JUNE 2004 printed in Japan

1

2

3

4

SAFETY INFORMATION

A

This service manual is intended for qualified service technicians ; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trainedto 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 mayvoid the warranty. If you are not qualified to perform the repair of this product properly and safely, youshould not risk trying to do so and refer the repair to a qualified service technician.

WARNING !

BTHE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1.

A SPECIALLY INSTRUCTED PERSON SHOULD DO SERVICING OPERATION OF THE APPARATUS.

LASER DIODE CHARACTERISTICS

FOR DVD : MAXIMUM OUTPUT POWER : 5 mW

WAVELENGTH : 650 nm

FOR CD : MAXIMUM OUTPUT POWER : 5 mW

WAVELENGTH : 780 nm

C

LABEL CHECK

D

(Printed on the Rear Panel)

E

F

Additional Laser Caution

1.Laser Interlock Mechanism

•Loading switch (S101 on the LOAB Assy) is used for interlock mechanism of the laser.

When this switch turned ON in SW2 (CLOSE) side (OPEN signal is 0V and CLOSE signal is 3.5V), a laser becomes the status which can completely oscillation.

Furthermore, the laser completely oscillates in the disc judgment and disc playback.

When player is power ON state and laser diode is not completely oscillating, 780nm laser diode is always oscillating by half power.

•Laser diode is driving with Q7 (650nm LD) and Q8 (780nm LD)

on the DVDM Assy.

Therefore, when short-circuit between the emitter and collector of these transistors or the base voltage is supplied for transistors turn on, the laser oscillates. (failure mode)

• In the test mode , there is the mode that the laser oscillates except for the disc judgment and playback. LD ON mode in the test mode oscillates with the laser forcibly.

The interlock mechanism mentioned above becomes invalid in this mode.

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 47.

2

DV-470-S

1

2

3

4

5

6

7

8

[ Important symbols for good services ]

In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them:

1. Product safety

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.

2. Adjustments

To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.

In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning

For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances.

4. Shipping mode and shipping screws

A

B

To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary.

5. Lubricants, glues, and replacement parts

Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying

glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used.

C

D

E

F

						3
			DV-470-S		7
5	6					8

	1	2	3	4
	CONTENTS
	SAFETY INFORMATION .....................................................................................................................................			2
	1. SPECIFICATIONS ............................................................................................................................................			5
A	2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................			6
	2.1 PACKING			6
	2.2 EXTERIOR SECTION................................................................................................................................			8
	2.3 FRONT PANEL SECTION .......................................................................................................................			10
	2.4 04 LOADER ASSY...................................................................................................................................			12
	3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................			14
	3.1 BLOCK DIAGRAM ...................................................................................................................................			14
	3.1.1 SIGNAL ROUTE BLOCK DIAGRAM .................................................................................................			14
	3.1.2 POWER SUPPLY BLOCK DIAGRAM................................................................................................			16
	3.2 WAVEFORMS ..........................................................................................................................................			18
	3.3 LOAB ASSY and OVERALL WIRING DIAGRAM.....................................................................................			20
	3.4 DVDM ASSY (1/3)....................................................................................................................................			22
B	3.5 DVDM ASSY (2/3)....................................................................................................................................			24
	3.6 DVDM ASSY (3/3)....................................................................................................................................			26
	3.7 JCKB ASSY .............................................................................................................................................			28
	3.8 FLKY and PWSB ASSYS ........................................................................................................................			30
	3.9 POWER SUPPLY UNIT............................................................................................................................			32
	4. PCB CONNECTION DIAGRAM .....................................................................................................................			33
	4.1 LOAB ASSY .............................................................................................................................................			33
	4.2 DVDM ASSY ............................................................................................................................................			34
	4.3 FLKY and PWSB ASSYS ........................................................................................................................			38
	4.4 POWER SUPPLY UNIT............................................................................................................................			40
	4.5 JCKB ASSY .............................................................................................................................................			42
C	5. PCB PARTS LIST ...........................................................................................................................................			43
	6. ADJUSTMENT ...............................................................................................................................................			45
	6.1 ADJUSTMENT ITEMS AND LOCATION .................................................................................................			45
	6.2 JIGS AND MEASURING INSTRUMENTS...............................................................................................			45
	6.3 NECESSARY ADJUSTMENT POINTS ...................................................................................................			46
	6.4 TEST MODE ............................................................................................................................................			47
	6.5 MECHANISM ADJUSTMENT ..................................................................................................................			48
	7. GENERAL INFORMATION .............................................................................................................................			50
	7.1 DIAGNOSIS .............................................................................................................................................			50
	7.1.1 TEST MODE ......................................................................................................................................			50
	7.1.2 DISPLAY SPECIFICATION OF THE TEST MODE............................................................................			51
	7.1.3 FUNCTIONAL SPECIFICATION OF THE SHORTCUT KEY ............................................................			52
D	7.1.4 SPECIFICATION OF MODEL INFORMATION DISPLAY ..................................................................			53
	7.1.5 FUNCTIONAL SPECIFICATION OF THE SERVICE MODE			54
	7.1.6 METHOD FOR DIAGNOSING DEGRADATION OF THE LDS ON THE PICKUP ASSY			.................. 55
	7.1.7 TROUBLE SHOOTING ......................................................................................................................			56
	7.1.8 ID NUMBER AND ID DATA SETTING ...............................................................................................			59
	7.1.9 SEQUENCE AFTER POWER ON.....................................................................................................			62
	7.1.10 DISASSEMBLY................................................................................................................................			63
	7.2 IC .............................................................................................................................................................			71
	7.3 DISC / CONTENT FORMAT PLAYBACK COMPATIBILITY .....................................................................			82
	7.4 CLEANING...............................................................................................................................................			84
	8. PANEL FACILITIES ........................................................................................................................................			85

E

F

4

DV-470-S

1

2

3

4

5

6

7

8

1. SPECIFICATIONS

A

B

C

D

E

F

						5
			DV-470-S		7
5	6					8

	1		2	3	4
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.
A	Therefore, when replacing, be sure to use parts of identical designation.
	Screws adjacent to		mark on product are used for disassembly.
	For the applying amount of lubricants or glue, follow the instructions in this manual.
	(In the case of no amount instructions, apply as you think it appropriate.)
2.1 PACKING
					For WVXCN type
					5
				3
B				4	2
				12
				1

		18
C
6		For WYXCN and WYXCN/FG types
		5
		2
7-10		12
"Operating Instructions"	12	3
D		4
		1
	15
14		16

E

17

F

6

DV-470-S

1

2

3

4

	5	6
PACKING parts List
Mark No.	Description	Part No.
> 1	Power Cable	See Contrast table(2)
2	Audio/Video Cable	VDE1078
3	Remote Control	VXX2913
4	Battery Cover	VNK4997
NSP 5	Dry Cell Battery (AA,R6P)	VEM1010
NSP 6	Warranty Card	ARY7065
7	Operating Instructions (English) See Contrast table(2)
8	Operating Instructions	See Contrast table(2)
	(English/Italian)
9	Operating Instructions	See Contrast table(2)
	(French/German)

		7	8
	Mark No.	Description	Part No.
	10	Operating Instructions	See Contrast table(2)
		(Spanish/Dutch)	A
	11	• • • • •
	12	Polyethylene bag B5	VHL1051
	13	• • • • •
	14	Polyethylene Bag	VHL1076
	15	Pad L	VHA1358
	16	Pad R	VHA1359
	17	Packing Case	See Contrast table(2)
	18	Accessory Box	See Contrast table(2)

B

(2) CONTRAST TABLE

DV-470-S/WYXCN, WYXCN/FG, WVXCN, DV-470-K/WYXCN and WYXCN/FG are constructed the same except for the following:

	Mark	No.	Symbol and Description	DV-470-S/	DV-470-S/	DV-470-S/	DV-470-K/	DV-470-K/
				WYXCN	WYXCN/FG	WVXCN	WYXCN	WYXCN/FG
	>	1	Power cable	ADG1154	ADG1154	ADG1156	ADG1154	ADG1154
		7	Operating Instructions (English)	Not used	Not used	VRB1346	Not used	Not used
		8	Operating Instructions	VRD1195	Not used	Not used	VRD1195	Not used
			(English/Italian)
		9	Operating Instructions	VRD1196	VRD1196	Not used	VRD1196	VRD1196
			(French/German)
		10	Operating Instructions	VRD1197	Not used	Not used	VRD1197	Not used
			(Spanish/Dutch)
		17	Packing Case	VHG2540	VHG2542	VHG2541	VHG2543	VHG2544
		18	Accessory Box	Not used	Not used	VHC1114	Not used	Not used

C

D

E

F

						7
			DV-470-S		7
5	6					8

	1	2	3	4
	2.2 EXTERIOR SECTION
				19
A	NON-CONTACT
	SIDE			20
				21
	CONTACT SIDE

18

25

21

Refer to

"2.4 04 LOADER ASSY". 4

	24
B	24
	21

7

			E
		C	D
		B
								25
	9
C			9
9
						F
			22
		9		G
					6
						E	G
						C		21
	5
		F				D
						B
						21
22	3
					2		B
				C				21
		F
			23
D
			21			A
								1
			16			8
						22
						22
							22
			10					22
						21
E

		A
	12	14
		13
	11
	F	Refer to "2.3 FRONT PANEL SECTION".

8

DV-470-S

1

2

3

4

	5	6		7	8
EXTERIOR SECTION parts List
Mark No.	Description	Part No.	Mark No.	Description	Part No.
1	DVDM Assy	VWS1585	14	Rubber Foot	VEB1349
2	JCKB Assy	VWV1995	15	• • • • •		A
> 3	POWER SUPPLY Unit	VWR1377
NSP 4	04 LOADER Assy	VWT1210	16	Rear Sheet	See Contrast table(2)
5	Connector Assy (13P)	VKP2320	17	• • • • •
			18	Bonnet	See Contrast table(2)
6	Flexible Cable (17P)	VDA1994	19	WY label	VRW2138
7	Connector Assy (5P)	VKP2324	20	Caution Label	VRW1872
8	Flexible Cable (15P)	VDA1991
9	Adapter 2	VNL1967	21	Screw	BBZ30P060FNI
10	Binder	VEC2414	22	Screw	BBZ30P080FNI
			23	Screw	PPZ30P080FNI
11	Tray Panel	See Contrast table(2)	24	Screw	BBZ30P100FNI	B
12	DVD A/V Badge	See Contrast table(2)	25	Screw	See Contrast table(2)
NSP 13	Base Chassis	VNA2693

(2) CONTRAST TABLE

DV-470-S/WYXCN, WYXCN/FG, WVXCN, DV-470-K/WYXCN and WYXCN/FG are constructed the same except for the following:

	Mark	No.	Symbol and Description	DV-470-S/	DV-470-S/	DV-470-S/	DV-470-K/	DV-470-K/
				WYXCN	WYXCN/FG	WVXCN	WYXCN	WYXCN/FG
		11	Tray Panel	VNK5411	VNK5411	VNK5411	VNK5413	VNK5413
		12	DVD A/V Badge	VAM1135	VAM1135	VAM1135	VAM1120	VAM1120
		16	Rear Sheet	VRW2135	VRW2135	VRW2135	VRW2136	VRW2136
		18	Bonnet	VNA2677	VNA2677	VNA2677	VNA2678	VNA2678
		25	Screw	BBZ30P060FNI	BBZ30P060FNI	BBZ30P060FNI	BBZ30P060FBN	BBZ30P060FBN

C

D

E

F

						9
			DV-470-S		7
5	6					8

1

2

2.3 FRONT PANEL SECTION

11

2

A

E

8-1/3

7

B

6

4

C

5

D

E

3

4

11

10

11

11

11

1	10
D	11

11

11

11

8-3/3

8-2/3

7

NON-CONTACT SIDE

CONTACT SIDE

3

4

F

10

DV-470-S

1

2

3

4

	5	6		7	8
FRONT PANEL SECTION parts List
Mark No.	Description	Part No.	Mark No.	Description	Part No.
1	FLKY Assy	VWG2511	7	Key Top	See Contrast table(2)
2	PWSB Assy	VWG2482	8	Main Key	See Contrast table(2)	A
3	Front Panel	See Contrast table(2)	9	• • • • •
4	Rubber Foot	VEB1349	10	FP Angle	VNE2332
5	FL Lens	VNK5414
			11	Screw	PPZ30P080FNI
6	Pioneer Name Plate	See Contrast table(2)

(2) CONTRAST TABLE

DV-470-S/WYXCN, WYXCN/FG, WVXCN, DV-470-K/WYXCN and WYXCN/FG are constructed the same except for the following:

	Mark	No.	Symbol and Description	DV-470-S/	DV-470-S/	DV-470-S/	DV-470-K/	DV-470-K/
				WYXCN	WYXCN/FG	WVXCN	WYXCN	WYXCN/FG
		3	Front Panel	VNK5610	VNK5610	VNK5610	VNK5611	VNK5611
		6	Pioneer Name Plate	VAM1129	VAM1129	VAM1129	VAM1130	VAM1130
		7	Key Top	VNK5410	VNK5410	VNK5410	VNK5409	VNK5409
		8	Main Key	VNK5404	VNK5404	VNK5404	VNK5406	VNK5406

B

C

D

E

F

						11
			DV-470-S		7
5	6					8

1

2

3

4

2.4 04 LOADER ASSY

		Note :	8
	A	Refer to
		" Application of Lubricant".	25

8

Daifree

GEM1036

8

B
12
Lubricating Oil
GYA1001
13
23
	17
16	4
22
C
	21
15

To	7	A
DVDM CN103
14		11
D
9		A 1
22

2

6

8

To DVDM CN101 (Pickup)

To DVDM CN104 (Stepping Motor)

To DVDM CN102 (Spindle Motor)

		18
3	24	20
A		22
5
	19

22

10

Lubricating Oil

GYA1001

04 LOADER ASSY parts List

	Mark No.	Description	Part No.	Mark No.	Description	Part No.
	NSP 1	LOAB Assy	VWG2346	16	Drive Gear	VNL1923
	2	Traverse Mecha. Assy-S	DXX2536	17	SW Lever	VNL1925
	3	Loading Motor Assy	VXX2912	18	Clamper Plate 04	VNE2342
	4	Motor Pulley	PNW1634	19	Bridge 04	VNE2343
E	NSP 5	Motor	VXM1107	20	Clamper 04	VNL1969
	6	Flexible Cable (24P)	VDA1990	21	Screw	JGZ17P028FNI
	7	Connector Assy 2P	VKP2325	22	Screw	VBA1093
	8	Floating Rubber	VEB1351	23	Tray	VNL1920
	9	Belt	VEB1358	24	Clamp Magnet	VMG1029
	10	Stabilizer	VNE2253	25	03 SD Pickup Assy-S	OXX8005
	11	Loading Base	VNL1917
	12	Float Base 04	VNL1968
	13	Drive Cam	VNL1919
F	14	Gear Pulley	VNL1921
	15	Loading Gear	VNL1922

12

DV-470-S

1

2

3

4

	5	6	7	8
	Application of Lubricant
					A
			Lubricating Oil
			GYA1001
			Around the shaft
		No. 11
		Loading Base
					B
			Lubricating Oil
			GYA1001
			Lubricating Oil	Lubricating Oil
	Lubricating Oil	No. 13	GYA1001	GYA1001	C
			Inner side of a ditch	Inner side of a ditch
	GYA1001	Drive Cam
	Lubricating Oil	Lubricating Oil		No. 13
				Drive Cam
	GYA1001	GYA1001
	Front View		Rear View
					D
	No. 23	Daifree	No. 23	Daifree
				GEM1036
		GEM1036
	Tray		Tray	Concave of unevenness
		Concave of unevenness
					E
			Inner side of a ditch
			Daifree
			GEM1036
	Top View		Bottom View	Side of the rib
		Concave of unevenness
		Daifree		Daifree
				GEM1036
		GEM1036			F
			DV-470-S		13
	5	6	7	8

1

2

3

4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

3.1.1 SIGNAL ROUTE BLOCK DIAGRAM

A
						B DVDM ASSY						ı1/3	IC204
													BR24L16FV-W
													EEPROM
													6	5
													SCL	SDA
													102	103	225	ASPDIF
		CN1013									ı1/3
					CN101
	SPINDLE	OEIC		(24P)		(24P)
					B3		D
	MOTOR			22		3			5
					B4		A
				21		4			4		IC201
							E
				19	C	6			18		MT1389EE-L1
				17	A	8	F		19		DVD IC
B							B
				16	B1	9			3
					B2		C
				15		10			2
							Q8
					LD(780)
				9		16	LD2		22
				7	LD(650)	18	LD1		23
		03 SD
							Q7									ASDAT0
	PICKUP														217
					T DRV		T+
	ASSY-S			4		21		31	ı1/3	2
				3	T RTN	22	T-	30			4
				2	F DRV	23	F+	34		1	PWMOUT1	40
					F RTN		F-
				1		24		35		2	FMSO	38
					CN102					24	FG	47			196	S_C
						(12P)			IC101
							HU+			26	DMSO	37				CVBS
					U+	2		21	M63018FP						198
							HU-
					U-	3		20	FTS DRIVER	27	FOSO	42
							HV+		• Focus							S_Y
C					V+	4		19			TRSO				194
							HV-		• Tracking	28		41
						5		18
					V-				• Stepper		TROPEN				200	G/Y
					W+	6	HW+	17	• Spindle	40		39
							HW-		• Loading Drive
																B/Cb
					W-	7		16	• FG Detection						202
											3
							U
					U	9		14								R/Cr
							V								203
						10		13
					V
							W
					W	11		12
					CN104		5
	STEPPING		M		ST2-	1	ST2-	6
	MOTOR				ST2+	2	ST2+	5
											TRIN
					ST1+	3	ST1+	9				49
					ST1-	4	ST1-	10			TROUT
												48
D	CN602	CN601			CN103
	2		1		LOAD-	1	LOAD-	36
–	M + 1		2	LOAD+		2	LOAD+	37
LOADING		S101	3		SW2	3	TRIN					IC203
				V+3D			V+3D
MOTOR			4			4						FLASH ROM
ASSY
			5		SW1	5	TROUT
												ı1/3
A LOAB ASSY
E

E POWERUNIT SUPPLY

CN2	CN301
(13P)	(13P)
CN1
LIVE
AC IN
F
NEUTRAL

14

DV-470-S

1

2

3

4

5

6

7

8

					JA901				Refer to "3.2 WAVEFORMS".
									DVDM Assy : 2 – @
						OPTICAL		DIGITAL
	Q901							AUDIO	JCKB Assy : 1 – 2
						COAXIAL		OUT

AUDIO LPF & AMP

IC501 PCM1742KE

10 AUDIO DAC (L, R)

IC502-1/2

JA501

16

7

VOUTL

2

8 BA4560F

11 14

1

ı3/3

3

1

L

ı3/3

AUDIO

ASDAT0

2

VOUTR

6

8

7

5

OUT (2 ch)

15

3

IC502-2/2

R

IC401

L

12 13

AUDIO

MM1623BF

OUT (2 ch)

VIDEO DRIVE AMP

R

S_C

2 C IN ı2/3 C OUT 26

JA401

6

CVBS

4 V IN

V OUT

23

COMPOSITE

VIDEO

S_Y

6 Y IN

Y OUT

21

OUTPUT

7

G/Y

10CY IN

CY OUT

20

Y

8

B/Cb

12 Cb IN

Cb OUT

18

COMPONENT

9

PB

VIDEO

R/Cr

14 Cr IN

Cr OUT

16

PR

OUTPUT

CN451

CN901

JA902

(17P)

FRONT L

13

AUD.L

(17P)

(21P)

L OUT

ı2/3

5

3

FRONT R

15

AUD.R

3

1

R OUT

2 C IN

C OUT 15

11

B/Pb

7

7

B

AV CONNECTOR

4 V IN

V OUT 13

9

G/Py

9

11

G

IC471 MM1505XN

(RGB)-TV/AV

RECEIVER

Y OUT

6 Y IN

10

4

H

R/C/Pr

2

7

11

15

R/C

IC451

6

L

19

V/Y

C

1

17

IC472 MM1507XN

4

H

2

5

V/Y

13

6

L

1

Y

CN941

3

Y

15

S VIDEO

C

OUT

2

					C
					JCKB ASSY
			Remote
			Sensor
			Unit
	17	SEL IR	CN102	CN103
IC101 PE5374B
		KEY0		KEY0
FL CONTROL	22
MICROCOMPUTER	20,21	KEY1, KEY2
V101	D FLKY ASSY			E	PWSB ASSY
FL TUBE
			DV-470-S			15
					7
5		6				8

A

B

C

D

E

F

1			2	3			4
3.1.2 POWER SUPPLY BLOCK DIAGRAM
A
			B DVDM ASSY		ı1/3	IC204		V+3
							8
						EEPROM
						BR24L16FV-W	V+3D
							V+3D
CN1013				ı1/3			46,65,73,80,
(24P)	CN101						108,127,141,
		(24P)	V+5S				155,167,182,
SPINDLE OEIC							204,212
MOTOR	VCC
2		2		IC201
				MT1389EE-L1			189,195,	V+3V
				DVD IC			199
B								V+3RF
							24,234,239,
							244,256

03 SD

PICKUP

ASSY-S

ı1/3

CN102

V+5S

(12P)

IC101

V+1R8

V+5S

1

M63018FP

FTS DRIVER

52,97,122,

• Focus

152,173,221

C

• Tracking

228

• Stepper

X201

• Spindle

27MHz

• Loading Drive

229

• FG Detection

CN104

STEPPING

M

ST2-

1

V+6

MOTOR

ST2+

2

3,22,

ST1+

3

ST1-

32,39

4

D

CN602

CN601

CN103

2

1

LOAD-

1

–

M + 1

2

LOAD+

2

V+3D

S101

SW2

IC203

IC202

3

3

LOADING

V+3D

K4S641632H-TC75-K

MOTOR

4

4

FLASH ROM

64M SDRAM

ASSY

5

SW1

5

12

37

1,3,9,14,

ı1/3

ı1/3

27,43,49

V+3

A LOAB ASSY

V+3D

V+3D

V+3 V+6

V+12

IC801

V+5A V+5S V+5V

V+1R8

NJM78M05FA

5V REG.

E

IC311

PQ1M505M2ZPQ

5V REG.

	E UNITPOWER SUPPLY			V+6B		CN201
				IC321		(15P)
				BA00BC0WT
		CN2		1.8V REG.
			CN301
		(13P)	(13P)
		-28V	13			4	-28V
		13
	CN1	FL DC+	12			6	FL DC+
		12
	LIVE	FL DC-	11			2	FL DC-
		11			V+3E
		EV+4V	8			5	V+3E
	AC IN	8
		SW+3.3V	7	IC341	IC205	8	RESET
	F	7		S-L2980A33MC-C6S	PST3228
		EV+6V(A)	5
	NEUTRAL	5		3V REG.	RESET
		EV+6V(B)	4
		4		V+4E
		SW+12V	2
		2
	16		DV-470-S

1

2

3

4

5

6

7

8

JA901

V+3

V+5A

										AUDIO LPF & AMP
	IC501 PCM1742KE												IC502-1/2
	AUDIO DAC (L, R)
										2			8 BA4560F
		5				ı3/3	6			3			1
													ı3/3
										6
												7
										5
													IC502-2/2
							IC401
						MM1623BF
					VIDEO DRIVE AMP
V+5V							ı2/3
					1,3,
					5,28

ı2/3

V+5V

1,5, 14,16

IC451

MM1566AJ

VIDEO DRIVE AMP

V+12	OPTICAL	DIGITAL
		AUDIO
	COAXIAL	OUT

JA501

L		AUDIO
R		OUT (2 ch)
L		AUDIO
R		OUT (2 ch)

JA401

COMPOSITE

VIDEO

OUTPUT

Y

COMPONENT

PB VIDEO

OUTPUT

PR

CN451		CN901
(17P)
		(17P)
V+5V		V+5
16	V+5	2

IC471 MM1505XN

H	3
4	2

6 L

IC472 MM1507XN

H 3

4

2

6 L

JA902

(21P)

L OUT

R OUT

B

AV CONNECTOR

G(RGB)-TV/AV RECEIVER

R/C

V/Y

CN941

S VIDEO

OUT

A

B

C

D

								C
								JCKB ASSY	E
					V+3E
	CN101	V+3E
	(15P)
		1	24	25	59	CN102	CN103
		IC101 PE5374B				3
						X101
-28V		-28V	FL CONTROL
	12					5MHz
FL DC+		60 MICROCOMPUTER				4
	10
FL DC-			6
	14
+3.3V			RESET
	11
RESET
	8
		1,2			34,35		E		F
						D FLKY ASSY		PWSB ASSY
				V101
			FL TUBE
						DV-470-S			17
								7
	5					6			8

1

2

3

4

3.2 WAVEFORMS

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

A	B DVDM ASSY
	Measurement condition ;
	No. 2 to 9		: reference A1 (DVD), T2-chp 19, Color-bar
	No. 10 to 15 : reference A1 (DVD), T2-chp 1
			2	IC101-pin 24 [FG]
				V: 1V/div. H: 5msec/div.
				GND
B
	3	IC201-pin 39 [TROPENPWM]
		V: 1V/div. H: 5 sec/div.
			[Tray stops]	[Tray is opening]	[Tray is closing]
			GND	GND	GND
C
	4	Foot of R201 (IC201-pin 37) [DMSO]
		V: 1V/div. H: 10 sec/div.		V: 1V/div. H: 10 sec/div.	V: 1V/div. H: 2sec/div.
			[DMSO_OPEN]	[DMSO_PLAY]	[DMS~3]
					Tray :
					opening
			GND	GND	GND
					PLAY

D

OPEN KEY ON :

OPEN KEY ON

PLAY KEY ON :

The condition which braking is worn in a turn of disc.

starting a turn of disc

Braking a turn of disc

5

CN102-pin 11, 10, 9 (IC101-pin 14, 13, 12)

7

JA401 [Component Video Out-Y]

[SPINDLE (WVU)]

V: 1V/div. H: 10 sec/div.

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

8

JA401 [Component Video Out-PB]

V: 2V/div. H: 10 sec/div.

7

9

JA401 [Component Video Out-PR]

V: 2V/div. H: 10 sec/div.

GND

GND

8

E

9

GND

GND

6

JA401 [Composite Video Out]

10

IC501-pin 16 [PCMCK]

11

IC501-pin 1 [PCMBCK]

V: 1V/div. H: 10 sec/div.

V: 100mV/div. H: 20nsec/div. fs=48kHz

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

GND		GND

F

GND

18

DV-470-S

1

2

3

4

	5				6	7
12	IC501-pin 3 [PCMLRCK]			13	IC501-pin 3	[PCMLRCK]
	V: 2V/div. H: 5 sec/div.				V: 2V/div. H: 500nsec/div.
				14	IC501-pin 1	[PCMBCK]
					V: 2V/div. H: 500nsec/div.
						13
				15	IC501-pin 2	[PCMDATA]
					V: 2V/div. H: 500sec/div.
			GND			14
						15

C JCKB ASSY

Measurement condition :

reference A1 (DVD), T2-chp 19, Color-bar

1	CN941 [S Video Out-Y]
	V: 1V/div. H: 10 sec/div.
2	CN941 [S Video Out-C]
	V: 1V/div. H: 10 sec/div.

1

GND2

2

GND1

DV-470-S

5

6

7

8

A

GND

GND

GND

B

C

D

E

F

19

8

1

2

3

4

3.3 LOAB ASSY and OVERALL WIRING DIAGRAM

A
C	JCKB ASSY
	(VWV1995)
B
F

AC IN

C

D

E

	POWER SUPPLY UNIT
	(VWR1377)
			STEPPING
			MOTOR
			03 SD PICKUP ASSY-S (OXX8005)
				(RF)
				(RF)
				(RF)
				(RF)
				(RF)
				(RF)
		ASSY-S
		MECHA.		(T)
				(T)
			INNER	(F)
				(F)
			SPINDLE
		TRAVERSE	MOTOR
ASSY	(VWT1210)		(DXX2536)
LOADER04			LOAB ASSY
		A (VWG2346)		S101
				VSK1011
		LOADING MOTOR
			ASSY
			(VXX2912)

						PWSB ASSY
					E
F						(VWG2482)
	A
20
						DV-470-S

1

2

3

4

5 6 7 8

÷ When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or
"PCB PARTS LIST".	A

÷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.

÷: The power supply is shown with the marked box.

(RF)

: RF SIGNAL ROUTE

(F) : FOCUS SERVO LOOP LINE

(T) : TRACKING SERVO LOOP LINE

			B
			C
	DVDM ASSY
	B (VWS1585)
	B 1/3 : DVD IC BLOCK
	B 2/3 : POWER and VIDEO BLOCK		D
	B 3/3 : AUDIO BLOCK
			E
	FLKY ASSY
	D (VWG2511)		F
	DV-470-S		21
		7
5	6		8

1

2

3

3.4 DVDM ASSY (1/3)

B 1/3 DVDM ASSY (VWS1585)

A

		CN1013
	B	ASSY-S
		03 SD PICKUP
	C	MOTORSPINDLE
	D	CN601
		A
		STEPPING MOTOR
	E

F

B 1/3

22

(RF) (RF)

(RF)

(RF)

(RF)

(RF)

(T)

(T)(F)

(F)

5

Focus, Tracking,

Stepping, Spindle

and Loading Driver

LD Driver for CD

LD Driver for DVD

(F)

(F)

(T)

(T)

2

DV-470-S

4

(RF)

(RF)

(RF)

(RF)

(RF) (RF)

4

3

VYW2197

1

2

3

4

5	6		7			8
					B 2/3
		(R/CR)	(B/CB)	(G/Y)	(V)	(SC)	(SY)	A
	B 3/3
		(B/CB)	(G/Y)
	(D)	(R/CR)			(V)
					(SC)
						(SY)
	(AD)
	(D)
								B
						B 2/3
						B 3/3
								C
	DVD IC
						K4S641632H-7C75-K
								D
								E
			(RF)	: RF SIGNAL ROUTE
			(F)	: FOCUS SERVO LOOP LINE
			(T)	: TRACKING SERVO LOOP LINE
			(R/CR)	: VIDEO SIGNAL ROUTE (R/CR)
	B 2/3		(G/Y)	: VIDEO SIGNAL ROUTE (G/Y)
			(B/CB)
	B	2/3		: VIDEO SIGNAL ROUTE (B/CB)
			(SY)
				: S VIDEO SIGNAL ROUTE (Y)
			(SC)	: S VIDEO SIGNAL ROUTE (C)
			(V)	: VIDEO SIGNAL ROUTE (V)				F
			(D)	: AUDIO SIGNAL ROUTE (DIGITAL ch)
	D CN101						B 1/3
			(AD)	: AUDIO DATA SIGNAL ROUTE

						23
			DV-470-S		7
5	6					8

1

2

3.5 DVDM ASSY (2/3)

B 2/3 DVDM ASSY (VWS1585)

A

5V Regulator

B

R321 33K (F)	R323 33K (F)
BA00BC0WT	1.8V Regulator
R322	33K (F)

C	3V Regulator

F CN2

D

E

F

B 2/3

24

DV-470-S

3

4

DVD IC

DVD IC

(B/CB) (G/Y)

(R/CR)

B 1/3

B 1/3

(B/CB)	(R/CR)
	(G/Y)

(SC)

(V)

(SY)

B 1/3

(G/Y)

(B/CB) (R/CR)

B 1/3

1

2

3

4

5

6

7

8

Video Driver Amp.

Video Driver Amp.

(R/CR)

(G/Y)

(B/CB)

(SY)

(SC)

(V)

(B/CB) (G/Y)

(R/CR)

Video DAmp.

with SW

(SC)	(SY)
	(V)

: VIDEO SIGNAL ROUTE (R/CR)	(FL)
	: AUDIO SIGNAL ROUTE (Front L ch)

: VIDEO SIGNAL ROUTE (G/Y)	A
: VIDEO SIGNAL ROUTE (B/CB)
: S VIDEO SIGNAL ROUTE (Y)
: S VIDEO SIGNAL ROUTE (C)
: VIDEO SIGNAL ROUTE (V)

B

	B 3/3	C
	(FL)	CN901
(B/CB)
(G/Y)
	(SC)(R/CR)	C
(V)		(SY)(V)
(SY)		(SY)
		(SC)
(SY)
(V)		D

(SC)	6
(V)
(SY)
(G/Y)
(B/CB)	8	7
(R/CR)	9

DV-470-S

5

6

7

E

VIDEO OUT

	Y	COMPONENT VIDEOOUT
	PB
	PR

F

B 2/3

25

8

1

2

3.6 DVDM ASSY (3/3)

B 3/3 DVDM ASSY (VWS1585)

A

B 1/3

B

(D)

(D)

(D)	COAXIAL
	DIGITAL
	OPTICAL AUDIO OUT

(D)	(D)

C

D

E

B 1/3

(AD)

: AUDIO DATA SIGNAL ROUTE

(D)

: AUDIO SIGNAL ROUTE (DIGITAL ch)

(FL)

: AUDIO SIGNAL ROUTE (Front L ch)

(SL)

: AUDIO SIGNAL ROUTE (Surround L ch)

(C)

F

: AUDIO SIGNAL ROUTE (Center ch)

(SW)

: AUDIO SIGNAL ROUTE (Sub Woofer ch)

3

4

10

(FL)

		11 14
	(AD)
B 1/3	15	12 13

B 3/3

26

DV-470-S

1

2

3

4

5

6

7

8

A

B

C

D

SW for Mute Control

B 1/3

		(FL)
		(FL)
		(FL)
		Mute
		SW
		(FL)
		(FL)
	(FL)	Mute
		SW

Mute

SW

Mute

SW

Reference Voltage Gen.

for Audio Amp.

DV-470-S

5

6

7

B 2/3

L	AUDIO
	OUT 2
R	(2 ch)
	E

(FL)

L AUDIO

OUT 1

R (2 ch)

B 2/3

F

B 3/3

27

8