Pioneer HTZ-C7 User Manual

ORDER NO.

RRV2076

DVD SURROUND SYSTEM

HTZ-7

DVD CENTER UNIT

HTZ-C7

POWERED SUBWOOFER

HTZ-SW7

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

	Type	Model	Power Requirement	Remarks
		HTZ-7
	KU/CA		AC120V

This product is a system(s) component.

This product does not function properly when independent; to avoid malfunctions, be sure to connect it to the prescribed system component(s), otherwise damage may result.

	HTZ-7 is a combination of the following components.
	DVD SURROUND SYSTEM (HTZ-7)			DVD CENTER UNIT (HTZ-C7)
				POWERED SUBWOOFER (HTZ-SW7)
CONTENTS						AMP ASSY (A-SW7)
1.	SAFETY INFORMATION .......................................	2			7.2 DIAGNOSIS .................................................		106
2.	EXPLODED VIEWS AND PARTS LIST ...................	3				7.2.1 FAIL-SAFE ............................................	106
3.	SCHEMATIC DIAGRAM ......................................	19				7.2.2 SINGLE UNIT OPERATION METHODS ..	107
4.	PCB CONNECTION DIAGRAM ............................	54				7.2.3 DISASSEMBLY .....................................	109
5.	PCB PARTS LIST ................................................	79				7.2.4 TEST MODE .........................................	114
6.	ADJUSTMENT ....................................................	90			7.3 BLOCK DIAGRAM .......................................		118
7.	GENERAL INFORMATION ..................................	99			7.4 REMOTE CONTROL UNIT ...........................		120
	7.1 PARTS ..........................................................	99				7.4.1 EXPLODED VIEWS AND PARTS LIST ...	120
	7.1.1 IC ............................................................	99				7.4.2 SCHEMATIC DIAGRAM .........................	122
	7.1.2 DISPLAY ...............................................	105			8. PANEL FACILITIES AND SPECIFICATIONS ......		123

PIONEER ELECTRONIC 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

PIONEER ELECTRONIC CORPORATION 1999

T–DZY JAN. 1999 Printed in Japan

HTZ-7, HTZ-C7, HTZ-SW7

1. SAFETY INFORMATION

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 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.

IMPORTANT

THIS PIONEER APPARATUS CONTAINS LASER OF CLASS 1.

SERVICING OPERATION OF THE APPARATUS S H O U L D B E D O N E B Y A S P E C I A L L Y INSTRUCTED PERSON.

LASER DIODE CHARACTERISTICS

MAXIMUM OUTPUT POWER: 7 mw WAVELENGTH: 650 nm

(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 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.

	Reading should
	not be above
	Leakage 0.5 mA
Device	current
	tester
under
test
	Test all exposed
	metal surfaces

Also test with plug reversed

(Using AC adapter plug as required)

Earth ground

AC Leakage Test

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 on the schematics and on the parts list 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.

2

HTZ-7, HTZ-C7, HTZ-SW7

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

2.1 DVD CENTER UNIT (HTZ-C7)

2.1.1 PACKING

	11 Refer to “ 7.4 REMOTE	10
	CONTROL UNIT ”.
		17
	3
	19
		17

1

5

2

4

15

16

9

12

6

7

18

PACKING PARTS LIST

Mark		No.		Description		Part No.
		1		Protector A		AHA7242
		2		Protector B		AHA7257
		3		Protector C		AHA7244
		4		Packing Case		AHD7741
		5		Packing Sheet (750 × 600 × 0.5)		Z23–007
		6		Operating Instructions		ARB7174
				(Setting up the HTZ–7)
				(English/French)
		7		Operating Instructions		ARB7175
				(Basic/Detailed) (English/French)
		8		……………………
		9		FM Antenna		ADH7004
		10		AM Loop Antenna		ATB7009
		11		Remote Control (CU–HT004)		AXD7189
NSP		12		Alkaline Batteries (AA/LR6)		VEM1012
		13		……………………
		14		……………………
NSP		15		Warranty		ARY7023
NSP		16		Polyethylene Bag		Z21–010
			(100 × 230 × 0.018)
		17		Polyethylene Bag		Z21–038
			(0.03 × 230 × 340)
		18		Protector E		AHA7258
		19		Battery Cover		103RRC14701R

3

HTZ-7, HTZ-C7, HTZ-SW7

2.1.2 EXTERIOR (1/2)

18

26

			39	25	38
11			2	CN5502							26
			CN5506
			29				28
			17				a
			b	30
						CN5503
							CN5501
			EXTERIOR (2/2)
			c	27				CN5505
			EXTERIOR (2/2)
						31
					e
							CN5508	CN5504
					EXTERIOR (2/2)
		11			d
					EXTERIOR (2/2)
						25		CN6201
26										36
			B	8
			A					6
		26
				10			25	26
		26
	34	33	26				7	D	26	26
									32
							9				26
				9
										26	26
13			D
								26
								1			C 26
15		37
									CN7801
			CN101								26
		26	CN105		CN107					26
								B
		4
			26			CN201
							CN102
				CN106
							CN803
21	20		5			CN802
									33
		22	26
					CN801
			28	a
			23
			24		A					C
								14			26

35

26

3

16

19

Refer to “ 2.1.3 EXTERIOR (2/2) ”.

12

4

HTZ-7, HTZ-C7, HTZ-SW7

EXTERIOR (1/2) PARTS LIST

Mark		No.		Description		Part No.
		1		VIDEO ASSY		AWU7284
		2		MOTHER ASSY		AWU7285
		3		FRONT (1) ASSY		AWU7163
		4		FRONT (2) ASSY		AWU7164
		5		LAMP ASSY		AWU7165
		6		FM/AM TUNER MODULE		AXQ7065
		7		Rear Panel		ANC7814
		8		FCC Holder		ANG7231
		9		Radiation Sheet		VEB1285
		10		Heat Sink		VNE2134
		11		Screw		ABA7048
		12		Front Skirt		AMB7528
NSP		13		Side Panel L		AMB7615
NSP		14		Side Panel R		AMB7616
		15		Side Skirt L		AMB7532
		16		Side Skirt R		AMB7533
		17		Front Alumi		ANB7136
		18		Top Alumi		ANB7137
		19		Panel Base Assy		AXG7069
NSP		20		LED Lens		AAK7581
NSP		21		Panel Base		AMB7526
		22		Illumination Filter		VEC1950
		23		Illumination Holder		VNK4098
		24		Illumination Lens		VNK4168
		25		Screw		BBZ30P060FMC
		26		Screw		BBZ30P100FZK
		27		17P FFC/60V		ADD7108
				(CN5503 += CN7005)
		28		7P FFC/60V		ADD7115
				(CN5901 += CN5505)
		29		7P FFC/60V		ADD7137
				(CN106 += CN5506)
		30		14P FFC/60V		ADD7138
				(CN105 += CN5502)
		31		12P FFC/60V		ADD7139
				(CN301 += CN107,
				CN5501 += CN11)
		32		Screw (3 × 8)		ABA7050
NSP		33		Tape		AEB7143
		34		Side Panel L Assy		AXG7073
		35		Side Panel R Assy		AXG7074
		36		65 Label		ARW7050
		37		Fuse Caution Label		ARW7051
		38		Cushion E		AEB7140
		39		Cushion D		AEB7139

5

HTZ-7, HTZ-C7, HTZ-SW7

2.1.3 EXTERIOR (2/2)

44

24

25

47

46

37

43

26

39

41

		40		23
				45
		35
c				42
EXTERIOR (1/2)	42
		h	f
30				g
			33
		31
42		b		34
	CN101	EXTERIOR
CN105		(1/2)
		CN107
		29
		CN106	CN803
		CN802
		CN801	36	5

6

i

22

42

42

16

42

42

15

15

h

31

38

2

42

CN11		8
CN10
		4
42	31	7

e

EXTERIOR (1/2)

49

13

3

11

51

42

42

20

48

43

10

Refer to “ 2.1.4 LOADING

MECHANISM ASSY”.

50

d

EXTERIOR (1/2)

	19
	42	27
		42
			To VIDEO ASSY
			CN7801
			EXTERIOR (1/2)
	f
	i
		33
	36		32
			42
	CN7002	CN7005
		CN7004
	g	CN7501	1
	34
		CN7502	42

14

42

11

17

21

12

12

21

9

18

12

42

6

HTZ-7, HTZ-C7, HTZ-SW7

EXTERIOR (1/2) PARTS LIST

Mark

No.

Description

Part No.

Mark No.

Description

Part No.

1

SVIDEO ASSY

AWU7283

41

Tray Label

VRW1628

2

POWER MAIN ASSY

AWU7286

42

Screw

BBZ30P060FMC

3

POWER SUB ASSY

AWU7287

43

Screw

BBZ30P100FZK

4

AC ASSY

AWU7288

44

Screw

BPZ26P080FZK

5

DVDM ASSY

VWS1364

45

Insulation Sheet B

AEC7186

6

FLASH ROM (IC6003)

VYW1570

46

Insulation Sheet

AEC7187

7

Power Transformer (T1)

ATS7238

47

Nylon Rivet (3 × 4.5)

RBM–003

8

Fuse (1A/125V, FU1)

REK1075

48

Label

ARW7048

9

Fan Motor

AXM1019

49

Cushion F

AEB7141

NSP

10

Loading Mechanism Assy

VWT1147

50

Cushion G

AEB7142

11

Leg

AEB7090

51

Spacer

AEB7151

12

Rubber Bush

AEB7134

NSP

13

PCB Spacer (3 × 12)

AEC1372

NSP

14

Chassis

ANA7075

15

PCB Holder (A)

ANG7202

16

PCB Holder (B)

ANG7206

17

Fan Cover

ANG7208

18

Fan Holder

ANG7230

19

Shield Case

ANK7046

20

Cover

ANK7047

21

Screw

BBZ30P300FZK

NSP

22

Edging Saddle (S)

DEC1761

23

Tray Spring

VBH1277

24

Clamper Plate

VNE2068

25

Bridge

VNE2069

26

Tray

VNL1731

27

17P FFC/60V

ADD7108

(CN5503 += CN7005)

28

……………………

29

7P FFC/60V

ADD7137

(CN106 += CN5506)

30

14P FFC/60V

ADD7138

(CN105 += CN5502)

31

12P FFC/60V

ADD7139

(CN301 += CN107,

CN5501 += CN11)

32

7P FFC/60V

ADD7109

(CN7801 += CN7501)

33

17P FFC/60V

ADD7111

(CN802 += CN7502)

34

14P FFC/60V

ADD7112

(CN803 += CN7004)

35

Housing Assy (14P)

AKP7033

(CN101 += CN10)

36

4P Connector

AKP7046

(CN801 += CN7002)

37

Clamper

VNL1738

38

Tray Stopper

VNL1739

39

Tray Panel

AMB7534

40

DVD Badge

VAM1076

7

HTZ-7, HTZ-C7, HTZ-SW7

2.1.4 LOADING MECHANISM ASSY

¶ Top View

Refer to “ 2.1.5 SERVO MECHANISM ASSY”.

1

3

4

5

2

20

¶ Bottom View

17 7

18

9

8

16

10
6	13	15
11		14
	12

LOADING MECHANISM ASSY PARTS LIST

Mark

No.

Description

Part No.

Mark No.

Description

Part No.

1

Servo Mechanism Assy-S

VXX2538

16

Screw

VBA1055

2

Screw

DBA1006

17

Screw

Z39–019

3

Drive Cam

VNL1736

18

Flexible Cable (8P)

VDA1649

4

Drive Gear

VNL1735

(LOSB CN302 += INSB CN202)

5

Lock Plate

VNL1820

19

……………………

20

Stopper

DNH2076

6

Loading Base

VNL1730

7

Rubber Belt

VEB1260

8

Gear Pulley

VNL1733

NSP

9

LOSB Assy

VWG1885

10

Loading Gear

VNL1734

11

Loading Motor Assy

VXX2505

12

DC Motor

PXM1027

13

Motor Pulley

PNW1634

NSP

14

LOMB Assy

VWG1886

15

Connector Assy (2P)

VKP2198

(LOMB CN401 += LOSB CN303)

8

HTZ-7, HTZ-C7, HTZ-SW7

2.1.5 SERVO MECHANISM ASSY

	¶ Top View		¶ Bottom View
	2	3	1
		4
		5	10
		6	20
		29	11
		7
	14	9	21
		30

	22
	12
	28
13	23

25

		32	27
			9
	8
	15		17
	16		18
			31
	18	26	18
			24
	18

19

SERVO MECHANISM ASSY PARTS LIST

Mark

No.

Description

Part No.

Mark

No.

Description

Part No.

1

Spindle Motor Assy

VXX2563

17

Pickup Assy

VWY1046

2

Magnet Holder Assy

VXX2507

18

Floating Rubber

DEB1315

NSP

3

Magnet

VYM1024

19

Float Base

VNL1732

NSP

4

Magnet Holder

VNE2070

20

Gear D

VNL1766

5

Centering Ring

VNL1746

21

Gear Spring

VBH1306

22

Gear E

VNL1767

6

Centering Spring

VBH1278

NSP

7

Disc Table

VNL1747

23

Gear F

VNL1768

NSP

8

Motor

VXM1071

24

Motor

VXM1062

9

Screw

JGZ17P028FMC

NSP

25

INSB Assy

VWG1883

10

Sub Guide Bar

VLL1489

26

Screw

PBZ20P050FMC

27

Flexible Cable (20P)

VDA1680

11

Guide Bar

VLL1488

(DVDM CN102 += Pickup Assy)

12

Mechanism Base

VNL1748

13

Hook

VNL1770

28

Connector Assy (3P)

VKP2150

14

Hook Spring

VBH1291

(INSB CN201 += FGSB CN101)

15

Slider

VNL1745

29

Table Sheet

DEC2040

30

Screw

PBA1048

16

Hold Spring

VNC1011

NSP

31

FGSB Assy

VWG1884

NSP

32

Sheet

VEC1959

9

HTZ-7, HTZ-C7, HTZ-SW7

2.2 POWERED SUBWOOFER (HTZ-SW7)

2.2.1 PACKING

	33
17	12		11
	13
15
16		12	9
	8		10
14

34			19	25	24
5		6	1 (2/2)
	7
					23
1 (1/2)			20		22
				21
3
					27

26

3

30

32

31

2 (1/2)	2(2/2)	18	30
			28
			29

4

10

HTZ-7, HTZ-C7, HTZ-SW7

PACKING PARTS LIST

Mark		No.		Description		Part No.
		1		Protector (L)		SHA2138
		2		Protector (R)		SHA2139
		3		Packing Sheet		SHC1723
		4		Packing Case		SHG2197
NSP		5		Cushion Set		SEA1528
NSP		6		Polyethylene Bag		SHL–051
		7		Leg		SXK1046
		8		Display Cable (L= 3m)		ADE7027
		9		Digital Audio Cable (L= 3m)		ADE7028
		10		Control Cable (L= 3m)		ADE7031
		11		Video Cable (L= 3m)		ADE7036
		12		AC Power Cord		ADG7021
		13		Polyethylene Bag		Z21–038
			(0.03 × 230 × 340)
		14		Packing Case (for Accessories)		AHD7650
		15		Packing Case (for Display Unit)		AHD7651
		16		Spacer		AHD7652
		17		Packing Sheet		RHC1052
NSP		18		Accessory Kit		SEA1534
		19		Speaker Cords (5m × 3)		SDS1065
NSP		20		Speaker Cords (10m × 2)		SDS1066
NSP		21		Screw Package		SEA1530
		22		Installation Screws		BMZ40P120FMC
		23		Non Skid Pads		SEP1189
NSP		24		Polyethylene Bag S1		SHL1225
		25		Cord Labels		SRW1066
NSP		26		Polyethylene Bag S2		SHL1223
		27		Top Protector		SHA2134
		28		Bottom Protector		SHA2135
		29		Packing Case		SHG2198
NSP		30		Polyethylene Bag S2		SHL1224
NSP		31		Polyethylene Bag S1		SHL1225
NSP		32		Satellite Speakers		HTZ–ST7
NSP		33		Display Unit		DU–HT7
		34		Caution Card		ARB7190

11

HTZ-7, HTZ-C7, HTZ-SW7

2.2.2 EXTERIOR

23

23

14

		20
25		20
	18
	9
24		4
12	9
13
7		22
17		10
22
15	21
		Refer to “ 2.2.3 AMP ASSY ”.
		8
22
		16
		11
2
		3
		22
22		6
		16

1

19

22

12

HTZ-7, HTZ-C7, HTZ-SW7

EXTERIOR PARTS LIST

Mark		No.		Description		Part No.
NSP		1		Cabinet		SMM1817
		2		Grille		SMG1623
NSP		3		Amp Assy		A–SW7
		4		Top Guard		AAK7646
		5		……………………
		6		Connection Cord		SDF1073
		7		Packing		SEC1423
NSP		8		Packing		SEC1429
NSP		9		Damper		SEC1430
		10		Damper		SEC1431
NSP		11		Bush		SEP–150
NSP		12		Acoustic Absorbent		SMV1942
		13		Damper		SER1236
NSP		14		Damper Plate		SLX1141
NSP		15		Duct		SMR1302
NSP		16		Acoustic Absorbent		SMV1936
NSP		17		Duct Ring		SNK2348
NSP		18		Top Cover		SNK2354
		19		Speaker		Q20EU82–53F
		20		Screw (for Top Guard)		BBZ30P080FZK
		21		Screw (for HP Assy)		BPZ30P080FMC
		22		Screw (for Speaker, Duct		BYC40P200FZB
				and Amp Assy)
		23		Screw (For Top Cover)		SBA1095
		24		Duct Assy		SXB1370
		25		Top Cover Assy		SXB1368

13

HTZ-7, HTZ-C7, HTZ-SW7

2.2.3 AMP ASSY (A-SW7)

Exterior (1/2)	6	16
	16		16
				16
		16
	19		16	7
3
19		19
	19
				16
	19		4
				9
		17
		10		16
17	20		13	16
10		13
				17
				21
				17

16

Refer to “7 EXTERIOR (2/2) ”.	18
	17
	2
	11
	1
	14
16	5
	17
	17
18	15
16
9

8

12

17

14

HTZ-7, HTZ-C7, HTZ-SW7

EXTERIOR (1/2) PARTS LIST

Mark		No.		Description		Part No.
		1		POWER SUPPLY ASSY		AWU7289
		2		SWF ASSY		AWU7292
		3		IF ASSY		AWU7293
		4		MAIN ASSY		AWU7362
		5		Fuse (4A, FU8001)		REK1082
		6		Screw (3 × 8)		ABA7050
		7		Rear Panel		ANC7809
		8		Bottom Panel		ANC7706
		9		Side Panel		ANC7707
		10		Bridge		ANG7200
		11		PCB Holder		ANG7203
		12		Leg Assy		AEC7165
		13		PCB Fixing Jig		DEC1231
NSP		14		Cord Clamper S		DEC1574
NSP		15		PCB Holder		PNW2029
		16		Screw		BBT30P080FZK
		17		Screw		BBZ30P080FMC
		18		Cushion C		AEB7138
		19		Screw		IBZ30P100FCC
		20		Cushion D		AEB7148
		21		65 Label		ARW7050

15

HTZ-7, HTZ-C7, HTZ-SW7

Exterior (2/2)

26

18

To IF ASSY

CN3025

8

26

31

20

19

		17
	26		1	24
			25	26
26				26
		6		25
		9	25		26
			27
30		27			26
	26
26		14		13
	27	27		23
			27
				27	26
5

3	16
	15
	26
26	26
11	26
15	15
26	26
	26
	12

26

	22
	21
	21
	2
4	10

28

28

7

16

HTZ-7, HTZ-C7, HTZ-SW7

EXTERIOR (2/2) PARTS LIST

Mark		No.		Description		Part No.
		1		AMP ASSY		AWU7290
		2		PRIMARY ASSY		AWU7291
		3		HP ASSY		AWU7295
		4		SECONDARY ASSY		AWU7175
		5		REG (1) ASSY		AWU7176
		6		DOLBY DIG 9624 ASSY		AWX7271
		7		Power Transformer (T8001)		ATS7222
		8		Cord with Plug		ADE7030
		9		Jumper Wire		D15A10–150–2651
NSP		10		Chassis		ANA7074
		11		Top Panel		ANC7808
		12		Fan Holder		ANG7199
		13		PCB Holder		ANG7201
		14		IF Holder		ANG7204
		15		HS Holder		ANG7207
NSP		16		Heat Sink		ANH7091
		17		Shield Case (A)		ANK7044
NSP		18		Shield Case (B) Assy		AXA7074
NSP		19		Earth Sleeve		ALA7010
NSP		20		Shield Case (B)		ANK7045
NSP		21		PCB Support		AEC1006
		22		Insulation Sheet		AEC7148
		23		Mica Sheet		AEE7028
NSP		24		Locking Wire Saddle		DEC1305
		25		Screw (3 × 16)		ABA1056
		26		Screw		BBZ30P080FMC
		27		Screw		BBZ30P100FCC
		28		Screw		BCZ40P060FMC
		30		Cushion A		AEB7136
		31		Cushion B		AEB7137

17

HTZ-7, HTZ-C7, HTZ-SW7

2.2.4 SATELLITE SPEAKER (HTZ-ST7)

15
				9
		8
				14
		7
		11
		3
				14
13	12
4		8
				1
10		13
6		SATELLITE SPEAKER PARTS LIST
		Mark	No.	Description	Part No.
			1	Cabinet	SNK2305
			2	Grille	SMG1618
			3	Speaker Wire	SDD1269
			4	Packing (for Grille)	SEC1398
4			5	……………………
		6	6	Packing (for Grille)	SEC1401
			7	Packing	SEE1066
			8	Damper	SES1021
			9	Input Terminal	SKX1056
2			10	Acoustic Absorben	SMV1919
				(for Grille rib)
2.2.5 DISPLAY UNIT (DU-HT7)		NSP	11	Acoustic Absorbent	SMV1940
			12	Speaker	B70AC45–57F
		8	13	Screw	BPZ40P060FMC
		9	14	Screw	BPZ40P120FMC
		3	15	Mini Stand	SNK2312
	1
			9
4
		DISPLAY UNIT PARTS LIST
		Mark	No.	Description	Part No.
		5	1	FLDP ASSY	AWU7294
			2	CNB ASSY	AWU7172
			3	Screw (3 × 8)	ABA7050
		2	4	Window	AAK7582
			5	Leg	AEB7090
7			6	FL Filter	AEC7150
			7	Display Panel	AMB7531
6			8	Rear Cover	AMC7030
			9	Screw	BPZ30P080FMC

18

	1		2		3		4

HTZ-7, HTZ-C7, HTZ-SW7

3. SCHEMATIC DIAGRAM

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

3.1 DVD CENTER UNIT (HTZ-C7)							A
3.1.1 OVERALL CONNECTION DIAGRAM (1/2), LOMB, LOSB, INSB and
FGSB ASSEMBLIES
LOADING MECHANISM ASSY
	SERVO
	MECHANISM		(T)		(T)
	ASSY-S		(F)		(F)
			(T)		(T)
	(VXX2538)
			(F)		(F)
					(T)
					(F)
					(F)		B
					(T)
					(F)
					(F)
		PICKUP ASSY
		(VWY1046)				ASSYDVDM (VWS1364)
	: RF SIGNAL ROUTE
(F)	: FOCUS SERVO LOOP LINE
(T)
	: TRACKING SERVO LOOP LINE
(S)
	: SLIDER SERVO LOOP LINE			A	LOADING MOTOR
					ASSY :VXX2505	)
	FGSB ASSY			LOMB ASSY		3/3
	D (VWG1884)			(VWG1886)		E
					CN401	to
	PC101					E1/3
				B	B2B-PH-K-S
	GP2S27(B)				CN303
		CN101		LOSB ASSY	B2B-PH-K-S	(	C
		B3B-PH-K-S				E
	CN201			(VWG1885)
	B3B-PH-K-S			S301
				VSK1011	CN301
	INSB ASSY	CN202		CN302
					VKN1272
		DSG1017 VKN1239	VKN1268
	C (VWG1883)	S201
		(S)
		(S)
					(S)	(S)
					(S)	(S)
	SLDR MOTOR	SPINDLE MOTOR				ADD7139
	VXM1062	ASSY : VXX2563
							D
					A B C D 19
	1	2			3	4

	1		2		3		4

HTZ-7, HTZ-C7, HTZ-SW7

3.1.2 OVERALL CONNECTION DIAGRAM (2/2)

A

( ) DVDM ASSY E E 1/3 to E 3/3 (VWS1364)

B

F

FM/AM TUNER MODULE (AXQ7065)

C

AKP7046 4P

ADD7112 14P

ADD7111 17P

D

ADD7138

14P

ADD7137

7P

MOTHER ASSY

I (AWU7285)

G

VIDEO ASSY (AWU7284)

H	(	H	1/2,	H	2/2)	SVIDEO ASSY
						(AWU7283)

20

ADD7109

14P

	1		2		3		4

	5		6

AKP7033 14P

O	LAMP ASSY	N	FRONT (2) ASSY
	(AWU7165)		(AWU7164)

M FRONT (1) ASSY (AWU7163)

ADD7115 7P

ADD7139 12P

MOTHER ASSY

I (AWU7285)

ADD7108 17P

	7		8

HTZ-7, HTZ-C7, HTZ-SW7

A

K

POWER SUB ASSY (AWU7287)

J

POWER MAIN ASSY (AWU7286)

B

L

AC ASSY (AWU7288)

AC POWER CORD

ADG7021

C

P CN3023 (HTZ-SW7)

P JA3026 (HTZ-SW7)

D

21

	5		6		7		8

	1		2		3		4

HTZ-7, HTZ-C7, HTZ-SW7

3.1.3 DVDM ASSY (1/3)
DVDM ASSY(1/3)		VTL1074	VTL1074
E 1/3 (VWS1364)		L335	L342
		(5/6)
A
VTL1074			(6/6)
L340			VKF1001
E 2/3
	(2/6)	(1/6)	TP300
			1/2
	(3/6)

VCO Offset ADJ.

								(4/6)
										2/2
					VKF1001
					TP400
		!	!
								VKF1001
								TP100
										(ROM)
B			E 2/3							(ROM)
		S14B-PH-SM3	(F)							E 2/3
		CN101
			(F)
			(F)
			(F)
			(T)
			(T)
	CN10
	J							(F)
										CN201
										VKN1324
			(F)
			(F)
			(T)				(T)	(F)
			(F)
C	ASSY		(F)
			(T)	E 3/3
	PICKUP				(T)	(S)
			(T)	(T)		(S)	(S)
			(F)						R177
			(T)
									33k
			(F)						R178	2/2
			(T)						33k
		CN102								IC171
		VKN1445
										BA10393F
			(S)							1/2
			(S)							IC171
		VKN1416								BA10393F
		CN107
D		CN301			(F)
			(S)
		B	(S)
			(F)	(F)
					(F)
	22	E 1/3
		1	2					3		4

	5		6		7		8

HTZ-7, HTZ-C7, HTZ-SW7

: RF SIGNAL ROUTE

(ROM)

: ROM DATA SIGNAL ROUTE

			(F)
			: FOCUS SERVO LOOP LINE
			(T)
			: TRACKING SERVO LOOP LINE
IC506			(S)
TC74VHCT245AFT			: SLIDER SERVO LOOP LINE	A
		HD74HC573FP
			SRM2B256SLMX70
		IC504
AGCOFF		TC74VHC20FT
	IC501
	PD4889A
		IC505(1/2)
		TC74VHC139FT
	E 3/3	IC505(2/2)
		TC74VHC139FT
			E 2/3	B
VKF1001
TP200
			E 2/3
			XRESET,DOUT,SBSY,
			PW,SFSY,SBCK,LRSY,
			ROMCK,ROMXA,MON,
		(ROM)	C2F,FG
(T)	(T)
	(T)
	(F)
(F)	(F)
	IC201
	LC78650NE
(S)	(S)			C
(F)	(F)
(T)	(T)
LD-ON
		C271 4700p	R271 150k
		R277
		100k	R273 220k

LEVEL SHIFT

2/2

R275

33k

R276

150k

1/2

E 2/3

D

E 2/3

E 1/3 23

	5		6		7		8

	1		2		3		4

HTZ-7, HTZ-C7, HTZ-SW7

3.1.4 DVDM ASSY (2/3)

A				E 2/3	DVDM ASSY(2/3)
					(VWS1364)
				E 1/3
				C2F,XRESET
					E 3/3
				XCSDOLV,DOLV-CD,XWRL,XWRH,
				XRD,XLT3,XAMUTE,XDREQ1,
				HCPUCK,IR,SEL-IR,XDVRST1,
				XAVIRQ0,48/X44,HIBSEL,XCS6,
				XDACK1,NAP SW
		VYW1570-
B					I
					CN5506
					CN106
					VKN1411
					E 3/3
					ADDRESS
					A2-A10
					E 3/3
					DATA
C
	IC605(1/2)				E 1/3
	TC74VHC139FT
D
			X602
			VSS1114	Q771,Q772:
			20MHz
				PDTC114TK
	IC605(2/2)
	TC74VHC139FT
24	E 2/3
	1	2		3	4

	5		6		7		8

HTZ-7, HTZ-C7, HTZ-SW7

: AUDIO SIGNAL ROUTE

(ROM)

: ROM DATA SIGNAL ROUTE

				E 3/3			A
				E 1/3
E 3/3				IC817	E	1/3	E 3/3
SDATA				TC74VHCT541AFT
(ROM)
				E 3/3
(ROM)					E 1/3
					(ROM)		B
(ROM)				(ROM)
	MONITOR OUTPUT
					E 1/3
							C
	SERVO				E 3/3
H 1/3
					E 3/3
VKN1418
CN105
			(ROM)	E 3/3
E 3/3
I	E 3/3	E 3/3	(ROM)
CN5502					E 1/3
							D
		E 1/3
				7	E 2/3 25
5		6				8

	1		2		3		4

HTZ-7, HTZ-C7, HTZ-SW7

3.1.5 DVDM ASSY (3/3)

				(1/4)
					(2/4)
A			E 2/3
				(4/4)	(3/4)			E 2/3
				E 2/3
				E 2/3
							E 2/3
B
						(ROM)
						(ROM)	E 2/3
C
	E 2/3					E 2/3
						E 2/3
				(C)	(Y)	(COM)
		(2/3)					R845	0
			(1/4)
	S4B-PH-SM3		(3/4)
	CN801
	CN7002	(1/3)	IC813
D			CY2081SL-611		Video
2/2H			(4/4)	E 2/3	Output
					Level
						(COM)
			(3/4)		ADJ.
			(1/4)			(Y)
			(2/4)
					E 2/3
E	1/3		(4/4)			(C)
			(2/4)
		(3/3)			E 1/3

26 E 3/3

	1		2		3		4

	5		6		7		8

HTZ-7, HTZ-C7, HTZ-SW7

E	3/3	DVDM ASSY(3/3)	A
		(VWS1364)

	E 2/3
	HIBSEL,48/X44,XRESET,
	XLT3,XAMUTE
				E 2/3
	1/2				VKN1421
					CN802
	2/2			(C)	CN7502
		(COM)			1/2
	(COM)			(Y)
	(COM)				H
				(COM)
			(C)	E 2/3
	1/2	(Y)
	(Y)				VKN1418
	(Y)
					CN803
					CN7004
	2/2				2/2
		(C)			H
	(C)
: AUDIO SIGNAL ROUTE	(C)
(ROM)
: ROM DATA SIGNAL ROUTE
(COM)
: COMPOSITE VIDEO SIGNAL ROUTE
(Y)
: Y SIGNAL ROUTE
(C)
: C SIGNAL ROUTE

E 3/3 27

B

C

D

	5		6		7		8

	1		2		3		4

HTZ-7, HTZ-C7, HTZ-SW7

3.1.6 FM/AM TUNER MODULE

MIX AMP

RF AMP

A	(FM)
(FM)	(FM)
	1T378A

(FM)

OSC

(FM)

1T378A

(FM)

BUFFER

(FM)

(FM)

B

(FM)

(FM)

IF AMP

FM +B SW

(AM)

(AM)

(AM)

(AM)

(FM)

C

(AM)

MW RF TUNING BLOCK

AKX7041

F FM/AM TUNER MODULE (AXQ7065)

D

28 F

	1		2		3		4

	5		6

(FM)

(FM)

AF AMP

(AM)

(TX)

(TX)

(FM)

(AM)

PLL

7		8

HTZ-7, HTZ-C7, HTZ-SW7

A

(TX)

: TUNER AUDIO SIGNAL ROUTE

(FM)

: FM SIGNAL ROUTE

(AM)

: AM SIGNAL ROUTE

	CN5504	B
(TX)
	I

AF AMP

REGULATOR

C

D

F 29

	5		6		7		8

	1		2		3		4

HTZ-7, HTZ-C7, HTZ-SW7

3.1.7 VIDEO ASSY and SVIDEO ASSY (1/2)

H 1/2	SVIDEO ASSY (1/2)
	(AWU7283)	INPUT SELECT

A

		(Y)
	(Y)	(Y)
		(Y)	(Y)
		(Y)
		(Y)
	(C)	(C)
		(C)
	(Y)	(C)	(C)
		(C)
		(C)
	B

G VIDEO ASSY (AWU7284)

INPUT SELECT

(COM)

(COM)

C

(COM)

(DVD)

: DVD DIGITAL AUDIO SIGNAL ROUTE

(COM)

: COMPOSITE VIDEO SIGNAL ROUTE

(Y)

: Y SIGNAL ROUTE

(C)

: C SIGNAL ROUTE

(COM)

(COM)

(COM)

D

30 G H 1/2

	1		2		3		4