Pioneer VSXD-812 Service manual

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 2003

DVD/LD TV/SAT VCR/DVR VIDEO

CD-R/

CD

TAPE/MD

TUNER

STANDBY

STANDBY/ON

PHONES

AUX

PULL OPEN

VSX-D912-S

ENTER

MASTERVOLUME

DOWN UP

MULTIJOG

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-D912-S

VSX-D812-K VSX-D812-S

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

Model Type Power Requirement Remarks

ORDER NO.

RRV2745

VSX-D912-S MYXJIEW AC220-230V

VSX-D812-K MYXJIEW AC220-230V

VSX-D812-S MYXJIEW AC220-230V

VSX-D812-S MYXJIFG AC220-230V

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

T-ZZK APR. 2003 printed in Japan

1234

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 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

B

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)

C

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

D

E

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

0.5 mA

Earth ground

Device under test

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

Test all exposed metal surfaces

Leakage current tester

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 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.

on the schematics and

F

2

1234

VSX-D912-S

5678

[ 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

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.

A

B

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

56

VSX-D912-S

E

F

7

8

3

1234

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 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

A

B

C

PACKING parts List

No. Description Part No.

Mark

1 FM wire antenna ADH7030 NSP 2 Warranty Card ARY7065 3 AM loop antenna ATB7009 NSP 4 Dry cell batteries (AA/R6) VEM1031 5 Operating instructions See Contrast table(2) (English/Italian)

6 Remote Control Unit XXD3054 7 Battery Cover AZA7424 NSP 8 Literature Bag AHG1180 9 Packing Sheet AHG7069 10 Left Pad R6 XHA3134

Mark

11 Right Pad R6 XHA3135 12 Packing Case See Contrast table(2) 13 MIC Stand 45 See Contrast table(2) 14 Microphone Assy See Contrast table(2) NSP 15 Accessory Board R6 XHB3008

16 Operating instructions See Contrast table(2) (Dutch/Spanish) 17 Operating instructions XRC3082 (French/German)

(2) CONTRAST TABLE

VSX-D912-S/MYXJIEW, VSX-D812-K/MYXJIEW, VSX-D812-S/MYXJIEW and MYXJIFG are constructed the same except for the following:

Mark NO Symbol and Description

5 Operating Instructions (English/Italian) XRE3070 XRE3070 XRE3070 Not used 12 Packing Case XHD3334 XHD3332 XHD3333 XHD3333 13 MIC Stand 45 AEB7269 Not used Not used Not used 14 Microphone Assy APM7004 Not used Not used Not used 16 Operating Instructions (Dutch/Spanish) XRC3081 XRC3081 XRC3081 Not used

VSX-D912-S/

MYXJIEW

VSX-D812-K/

MYXJIEW

VSX-D812-S/

MYXJIEW

VSX-D812-S/

MYXJIFG

D

E

VSX-D912-S

56

F

7

8

7

1234

2.2 EXTERIOR SECTION

A

55

45

55

56

57

55

EXCEPT VSX-D812-K

55

50

22

21

62

55

W

17

J

55

55 55

27

58

55

K

J

28

I

29

30

B

31

A

I

49

55

48

15

T

33

55

H

B

2

H

55

B

L

56

18

52

55

3

C

53

52

55

7

O

C

G

E

P

D

5

E

Q

13

P

O

C

S

R

Q

F

8

S

H

P

D

E

26

20

46

55

54

61

55

M

I

M

23

Q

55

24

14

S

57

55

11

35

55

34

36

R

D

4

54

38

55

37

10

K

44

L

K

J

L

12

9

B

1

55

A

32

55

F

55

F

39

55

E

55

Refer to

C

B

51

A

55

40

55

60

42(2/2)

40

55

D

41

55

6

55

43

55

NON-CONTACT

SIDE

CONTACT

SIDE

47

55

"2.3 FRONT PANEL SECTION".

42(1/2)

F

8

VSX-D912-S

1234

>

5678

EXTERIOR SECTION parts List

Mark

No. Description Part No.

1 MAIN Assy See Contrast table(2) 2 DSP Assy AWX1082 3 AMP&PRIMARY Assy XWZ3670 4 TRANS2 Assy XWZ3684 5 TRANS3 Assy XWZ3687

6 REGULATOR Assy XWZ3676 7 AMP INPUT Assy XWZ3679 8 TRANS1 Assy XWZ3681 9 VIDEO Assy XWZ3647 10 6CH IN Assy XWZ3650

11 BOARD TO BOARD Assy XWZ3665 12 S. VIDEO Assy XWZ3660 13 TRANS4 Assy XWZ3662 14 PRE-OUT Assy XWZ3663 15 DIGITAL IN Assy See Contrast table(2)

16 • • • • • • 17 FM/AM TUNER MODULE AXQ7232

18 FU1 Fuse (T3.15A) REK1027 19 • • • • • • 20 T1 Power Transformer XTS3063

21 AC Power Cord VDG1080 22 Cord Stopper CM-22B 23 J36 23P F.F.C/30V XDD3102 24 J46 7P F.F.C/30V XDD3105 25 • • • • • •

26 J22 3P F.F.C/30V XDD3107 27 J33 11P F.F.C/30V XDD3123 28 J48 9P F.F.C/30V XDD3124 29 J34 13P F.F.C/30V XDD3122 30 J43 19P F.F.C/30V XDD3126

31 J31 17P F.F.C/30V XDD3118 32 J35 19P F.F.C/30V XDD3101

Mark

No. Description Part No.

33 J37 10P F.F.C/30V XDD3127 NSP 34 Heatsink R6A CORR XNH3026 35 H/S Angle Rear XNG3095

36 H/S Angle Front XNG3094 37 PCB Angle R5 XNG3073 38 PCB Mold AMR2533 NSP 39 Under Base R6 XNA3012 40 Insulator PNW2766

41 DC Fan Motor XXM3006 42 Fan Holder R6 XMR3066 43 REG Support R6 XNG3093 44 Rear Panel 812K XNC3196 45 Bonnet See Contrast table(2)

NSP 46 HOLDER Assy XWZ3693 47 FFC Holder R6 XMR3072 48 Shield A R6 XNG3068 49 FFC Cover R6 XMR3060 NSP 50 N Label See Contrast table(2)

NSP 51 Spacer AEB7092 52 Screw BBZ30P200FMC 53 Screw 3x23 ABA7043 54 Screw FBT40P080FZK 55 Screw BBZ30P080FZK

56 Screw See Contrast table(2) 57 Screw See Contrast table(2) 58 Vjack Spacer R6 XEC3038 NSP 59 BINDER Assy XWZ3691 60 Screw BPZ30P120FMC

61 Fuse Card AAX7493 62 Screw BBT30P100FCC

A

B

C

D

(2) CONTRAST TABLE

VSX-D912-S/MYXJIEW, VSX-D812-K/MYXJIEW, VSX-D812-S/MYXJIEW and MYXJIFG are constructed the same except for the following:

Mark NO Symbol and Description

1 MAIN Assy XWK3101 XWK3096 XWK3096 XWK3096 15 DIGITAL IN Assy XWZ3659 XWZ3658 XWZ3658 XWZ3658 45 Bonnet D912S XZN3127 Not used XZN3127 XZN3127 45 Bonnet D912K Not used XZN3126 Not used Not used

NSP 50 N Label 912S/MY XAL3173 Not used Not used Not used

NSP 50 N Label 812S/MY Not used Not used XAL3152 XAL3152

56 Screw BPZ30P080FNI BPZ30P080FZK BPZ30P080FNI BPZ30P080FNI 57 Screw FBT40P080FNI FBT40P080FZK FBT40P080FNI FBT40P080FNI

VSX-D912-S/

MYXJIEW

VSX-D912-S

56

VSX-D812-K/

MYXJIEW

7

VSX-D812-S/

MYXJIEW

VSX-D812-S/

MYXJIFG

8

E

F

9

1234

2.3 FRONT PANEL SECTION

A

31

R

5

17

16

34

VSX-D812-K, VSX-D812-S ONLY

25

15

10

8

13

14

12

11

B

7

C

Lubricating Oil GYA1001

O

34

18

34

30

19

Q

4

14

VSX-D912-S ONLY

34

29

34

28

34

22

24

27

31

V

6

3

34

26

34

M

34

20

1

34

N

2

23

21

10

9

D

E

F

10

1234

VSX-D912-S

5678

FRONT PANEL SECTION parts List

Mark

No. Description Part No.

1 FRONT ASSY XWZ3648 2 R. ENCODER Assy XWZ3653 3 POWER SW Assy XWZ3651 4 FRONT VIDEO Assy XWZ3655 5 H.P. Assy XWZ3654

6 FRONT OPTICAL & MIC Assy See Contrast table(2) 7 Pioneer Badge B See Contrast table(2) 8 Select Knob See Contrast table(2) 9 Volume Knob See Contrast table(2) NSP 10 C Ring DIM 8.1 XBH3016

11 FRT Panel See Contrast table(2) 12 BN Cover See Contrast table(2) 13 D Panel R6 W XAK3348 14 Cushion See Contrast table(2) 15 LED Lens PNW2019

16 Panel Stay See Contrast table(2) 17 Earth Plate R5 HP XNG3066 18 Door Spring R6 XBK3002

Mark

No. Description Part No.

19 J29 8P Shield Cable XDX3012 20 B Lens R6 XAK3352

21 Door See Contrast table(2) 22 Door Cover See Contrast table(2) 23 Holder L R6 XMR3059 24 Damper Assy XXA3025 25 Push Rivet See Contrast table(2)

26 Earth Plate FI R6 XNG3091 27 J30 5P Shield Cable See Contrast table(2) 28 J32 5P F.F.C/30V See Contrast table(2) 29 Earth Plate D R6 See Contrast table(2) 30 Screw XBA3010

31 Screw BBZ30P080FZK 32 • • • • • 33 • • • • • 34 Screw PPZ30P100FMC

A

B

(2) CONTRAST TABLE

VSX-D912-S/MYXJIEW, VSX-D812-K/MYXJIEW, VSX-D812-S/MYXJIEW and MYXJIFG are constructed the same except for the following:

Mark NO Symbol and Description

6 FRONT OPTICAL & MIC Assy XWZ3656 Not used Not used Not used 7 Pioneer Badge B VAM1124 XAM3006 VAM1129 VAM1129 8 SEL Plat Knob R6S XAB3037 Not used XAB3037 XAB3037 8 Select Knob R5BH Not used XAB3023 Not used Not used 9 VOL Plat Knob R6S XAB3036 Not used XAB3036 XAB3036

9 Volume Knob R5BH Not used XAB3025 Not used Not used 11 FRT Panel 912S/MY XNB3001 Not used Not used Not used 11 FRT Panel 812K/MY Not used XMB3106 Not used Not used 11 FRT Panel 812S/MY Not used Not used XMB3107 XMB3107 12 BN Cover 912S/MY XAK3353 Not used Not used Not used

12 BN Cover 712K/MY Not used XAK3378 Not used Not used 12 BN Cover 712S/MY Not used Not used XAK3380 XAK3380 14 Cushion R4G XED3002 Not used XED3002 XED3002 14 Cushion R4B Not used XED3001 Not used Not used 16 Panel Stay 912S/MY XMB3108 Not used Not used Not used

16 Panel Stay 812K/MY Not used XMB3098 Not used Not used 16 Panel Stay 812S/MY Not used Not used XMB3104 XMB3104 21 Door R6S XAK3357 Not used XAK3357 XAK3357 21 Door R6K Not used XAK3356 Not used Not used 22 Door Cover R6S XAK3359 Not used XAK3359 XAK3359

VSX-D912-S/

MYXJIEW

VSX-D812-K/

MYXJIEW

VSX-D812-S/

MYXJIEW

VSX-D812-S/

MYXJIFG

C

D

E

22 Door Cover R6K Not used XAK3358 Not used Not used 25 Push Rivet Not used AEC7025 AEC7025 AEC7025 27 J30 5P Shield Cable XDX3019 Not used Not used Not used 28 J32 5P F.F.C/30V XDD3125 Not used Not used Not used 29 Earth Plate D R6 XNG3092 Not used Not used Not used

56

VSX-D912-S

7

F

11

8

1234

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

B

C

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

W

CN952

V

VSX-D912 Only

CN201

7

2

Q

V

CN103

7

4

CN108

1

CN9013CN107

CN951

1

CN1902

T

1

IC8401

AK4529VQ

27 25 23 24 21

IC8501

IC8601

IS61LV6416

-12T(S-RAM) IC8602

IS63LV1024

-12T(S-RAM)

IC8603 PD8116A (ROM)

A

3

IC102

CN8007

NJM2100M

11

15

19

13

IC101

4

6

8

10

12

16

24

10

7

1

BD3841FS (FUNCTION SEL)

218

10

7

1

CN8017CN1901

19

17

CN109

3

CN8007

(CODEC)

31

(ADC)

(DIR)

B

(DAC)

MOTOROLA DSP

(for DECODE)

14 26

42

44 46

1

13

16

IC8201

AK4114VQ

51

44

uPC4570G2 (LPF)

IC107

IC105

31

11

31

21

IC103 31

IC104 31

IC104 57

IC106

47

54

45

52

7

3

5

1

CN109

IC303

3

1

J

IC302

5

7

D

3

IC302

1

IC304

1

E

CN307

3

9

5

7 3

CN105

7

1

5

Q

CN901

6 8

L

CN354

48

55

49

56

NJM2595M

IC352

9

5

7

3

1

9

5

7

3

IC351

NJM2595M

11

(Y SEL)

11

(C SEL)

1

19

1

F

12

VSX-D912-S

1234

5678

A

1551

6

IC110 uPC4570G2 (PRE AMP)

30

31

CN106

14.1/24.1 14.2/27.3 19.3

4

CN601

3

CN702

Q1552

6

IC601

22

RY751

15

R

IC108

BD3813FS

IC111

23

31

27

IC112

31

21

Q603

G

87

Q653

11

Q632

12 11

Q601

Q651

Q631

C

IC602

24

26

S

RY754

RY753

B

S

C

IC601

24

RY752

26

S

IC602

18

RY752

14

D

Q

IC109 DB3812F

3

CN9015CN301

11

IC115

141

31

9

I

5

7

3

1

IC301

(COMPONENT SEL)

NJM2595M

Q362

T+12V

5

C

POWER AMP

IC601, IC602

CN401

M

IC805

CN101

A

CN101

A

Q682

IC112

Q681

+BVH

-BVH

NECK+B

NECK-B

+BVL

-BVL

FL AC

+12V

-12V

D+5V

A+5V

7

18

CN111

Q701

Q702

IC801

IC802

IC803

IC804

VSX-D912-S

56

F

CN302

D701

D702

D801–D804

D721–D724

7

S

3

Q303

A

U+5V

T1 POWER TRANSFORMER

CN101

IC51

RY51

I

D51-D54

T51

AC IN

C

8

E

F

13

1234

3.2 OVERALL WIRING CONNECTION DIAGRAM

A

R.ENCODER

FRONT OPTICAL & MIC ASSY (XWZ3656)

ASSY (XWZ3653)

FRONT VIDEO ASSY (XWZ3655)

N

FRONT ASSY

M

(XWZ3648)

V

B

Q

G

AMP INPUT ASSY (XWZ3679)

C

D

DSP ASSY (AWX1082)

B B 1/2, B 2/2

E

MAIN ASSY (VSX-D912 : XWK3101) (VSX-D812 : XWK3096)

A

A 1/3, A 2/3,

S. VIDEO ASSY (XWZ3660)

L

VIDEO ASSY (XWZ3647)

BOARD TO BOARD ASSY (XWZ3665)

K

W

A 3/3

I

F

REGULATOR

DIGITAL IN ASSY

T

(VSX-D912 : XWZ3659) (VSX-D812 : XWZ3658)

F

14

1234

FM/AM TUNER MODULE (AXQ7232)

VSX-D912-S

J

6CH IN ASSY (XWZ3650)

ASSY (XWZ3676)

5678

A

POWER SW ASSY

O

(XWZ3651)

VSX-D912 Only

R

H.P. ASSY (XWZ3654)

B

EP

TRANS4 ASSY (XWZ3662)

TRANS3 ASSY (XWZ3687)

J7J6

Y8

C

C 1/2,

C 2/2

AMP& PRIMARY ASSY (XWZ3670)

Y8

C

TRANS2 ASSY (XWZ3684)

TRANS1 ASSY (XWZ3681)

H

D

J1J2

J4

J5

D

S

PRE-OUT ASSY (XWZ3663)

VDG1080

VSX-D912-S

56

E

F

7

8

15

1234

3.3 MAIN ASSY (1/3)

A

B

A 3/3

C

VSX-D812, only

D

CN901

Q

E

VSX-D912 only

CN952

V

A 3/3

F

A

1/3

A

16

1234

A 3/3

VSX-D912-S

F

CN804

A 2/3

5678

A

A 2/3

B

A 2/3

A 3/3

C

A 2/3

D

A 2/3

A

MAIN ASSY

1/3

(VSX-D912 : XWK3101) (VSX-D812 : XWK3096)

: The power supply is shown with the marked box.

56

VSX-D912-S

A 2/3

7

E

F

A

1/3

8

17

1234

3.4 MAIN ASSY (2/3)

A

B

MAIN ASSY

2/3

(VSX-D912 : XWK3101) (VSX-D812 : XWK3096)

A 3/3

A 1/3

C

A 3/3

D

CN307

J

E

F

18

A

2/3

VSX-D912-S

1234

5678

A 3/3

A

B

C

CN254

G

A 3/3

D

E

F

56

VSX-D912-S

A

2/3

7

8

19

1234

3.5 MAIN ASSY (3/3)

A

CN201

W

B

A 1/3

C

VSX-D812, only

A 1/3

CN303

I

D

VSX-D812/MY VSX-D912/MY

E

A 2/3

: The power supply is shown with the marked box.

F

CN802

VSX-D912-S

20

A

3/3

1234

5678

CN401

M

A

MAIN ASSY

3/3

(VSX-D912 : XWK3101) (VSX-D812 : XWK3096)

B

C

A 2/3

D

A 1/3

E

A 1/3

F

A 2/3

56

VSX-D912-S

B 2/2

7

CN8012

A

3/3

8

21

1234

3.6 DSP ASSY (1/2)

A

B

CN1901

T

C

NO USE

D

NO USE

E

NO USE

F

NO USE

22

B

A

1/2

1234

NO USE

VSX-D912-S

5678

A

AWX1082 : NO USE

CN806

F

B

C

D

E

B

1/2

CN805

F

: The power supply is shown with the marked box.

56

VSX-D912-S

DSP ASSY (AWX1082)

7

F

B

1/2

8

23

1234

3.7 DSP ASSY (2/2)

A

B

C

D

E

F

CN112

A 3/3

24

B

A

2/2

VSX-D912-S

1234

5678

A

B

DSP ASSY

2/2

(AWX1082)

B

C

D

E

AWX1082 : NO USE

VSX-D912-S

56

F

B

2/2

7

8

25

1234

3.8 AMP & PRIMARY (1/2), TRANS2 and TRANS3 ASSYS

A

B

C

C 1/2

AMP&PRIMARY ASSY

(XWZ3670)

CN253

G

D

E

F

C

1/2

26

1234

VSX-D912-S

MYXJI

5678

MYXJI

CAUTION : FOR CONTINUED PROTECTION

AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. ICP-N10 FOR IC701 AND IC702 MFD, BY ROHM CO., LTD.

MYXJI

CAUTION : FOR CONTINUED PROTECTION

AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491003 FOR IC853 MFD, BY LITTELFUSE INC.

C 2/2

TRANS3 ASSY

(XWZ3687)

E

POWER TRANSFORMER

D

TRANS2 ASSY

(XWZ3684)

1551

R

A

B

C

C 2/2

CN1575

S

• NOTE FOR FUSE REPLACEMENT

CAUTION -

FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY.

56

VSX-D912-S

C 2/2

D

MYXJI

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491004 FOR IC851 AND IC852 MFD, BY LITTELFUSE INC.

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491001 FOR IC603 MFD, BY LITTELFUSE INC.

CAUTION : FOR CONTINUED PROTECTION

7

AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491010 FOR IC604, IC605, IC606, AND IC607 MFD, BY LITTELFUSE INC.

C

1/2

D E

8

E

F

27

1234

3.9 AMP & PRIMARY (2/2), REG. , AMP INPUT and TRANS1 ASSYS

A

CN109

B

A 1/3

F

REGULATOR

B 1/2

CN8007

C

B 1/2

CN8003

D

ASSY (XWZ3676)

E

A 3/3

C

CN111

I

CN302

2/2

F

1234

VSX-D912-S

C 1/2

F

28

Pioneer VSXD-812 Service manual

SAFETY INFORMATION

CONTENTS

1. SPECIFICATIONS

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

2.2 EXTERIOR SECTION

2.3 FRONT PANEL SECTION

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

3.2 OVERALL WIRING CONNECTION DIAGRAM

3.3 MAIN ASSY (1/3)

3.4 MAIN ASSY (2/3)

3.5 MAIN ASSY (3/3)

3.6 DSP ASSY (1/2)

3.7 DSP ASSY (2/2)

3.8 AMP & PRIMARY (1/2), TRANS2 and TRANS3 ASSYS

3.9 AMP & PRIMARY (2/2), REG. , AMP INPUT and TRANS1 ASSYS