Pioneer VSX-1018-AHK, VSX-1018-AHS, VSXLX-51 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

2008

VSX-LX51

For details, refer to "Important Check Points for good servicing".

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-LX51

VSX-1018AH-K VSX-1018AH-S

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

Model Type Power Requirement Remarks

VSX-LX51 HYSXJ5 AC 220 V to 230 V

VSX-1018AH-K YSXJ5 AC 220 V to 230 V

VSX-1018AH-S

YSXJ5

AC 220 V to 230 V

ORDER NO.

RRV3765

T- Z Z V MAY

2008 Printed in Japan

1

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

2 3 4

SAFETY INFORMATION

A

B

C

D

E

F

2

1

2 3 4

VSX-LX51

5

[Important Check Points for Good Servicing]

In this manual, procedures that must be performed during repairs are marked with the below symbol. Please be sure to confirm and follow these procedures.

1. Product safety

Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual.

1 Use specified parts for repair.

Use genuine parts. Be sure to use important parts for safety.

2 Do not perform modifications without proper instructions.

Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise.

3 Make sure the soldering of repaired locations is properly performed.

When you solder while repairing, please be sure that there are no cold solder and other debris. Soldering should be finished with the proper quantity. (Refer to the example)

4 Make sure the screws are tightly fastened.

Please be sure that all screws are fastened, and that there are no loose screws.

5 Make sure each connectors are correctly inserted.

Please be sure that all connectors are inserted, and that there are no imperfect insertion.

6 Make sure the wiring cables are set to their original state.

Please replace the wiring and cables to the original state after repairs. In addition, be sure that there are no pinched wires, etc.

7 Make sure screws and soldering scraps do not remain inside the product.

Please check that neither solder debris nor screws remain inside the product.

8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.

Damaged power cords may lead to fire accidents, so please be sure that there are no damages. If you find a damaged power cord, please exchange it with a suitable one.

9 There should be no spark traces or similar marks on the power plug.

When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if necessary.

a Safe environment should be secured during servicing.

When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries. Please pay attention to your surroundings and repair safely.

2. Adjustments

To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification. Adjustments should be performed in accordance with the procedures/instructions described in this manual.

4. Cleaning

For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper cleaning should be performed to restore their performances.

3. Lubricants, Glues, and Replacement parts

Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied.

5. Shipping mode and Shipping screws

To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

6 7 8

A

B

C

D

5

VSX-LX51

6 7 8

E

F

3

1

2 3 4

• Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 °C. Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 °C in general, although the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron.

Do NOT use a soldering iron whose tip temperature cannot be controlled.

Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden).

The following lead-free solders are available as service parts:

• Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia.

• Before removing the Power Amp Assy, it is neccessary to discharge C5721 and C5722. For more detail, please refer to page 67.

2 3 4

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

A

B

C

1.2 CAUTION

D

E

F

6

1

2 3 4

VSX-LX51

2. SPECIFICATIONS

[1] Accessories

Remote Control Unit (AXD7518: VSX-LX51) (AXD7526: VSX-1018AH-K) (AXD7527: VSX-1018AH-S)

Setup Microphone (for Auto MCACC setup)

(APM7008)

AM Loop Antenna (ATB7013)

FM Wire Antenna (ADH7030)

AA/LR6 Dry Cell Batteries (VEM1031)

SR+ mini-plug cable (ADE7095)

SERVICE PARTS

2.1 ACCESSORIES

5

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

7

1

(LX51)

13.3 kg (1018AH)

2.2 SPECIFICATIONS

A

B

2 3 4

C

D

E

F

8

1

2 3 4

VSX-LX51

[1] Rear panel

VSX-LX51

5

2.3 PANEL FACILITIES

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

9

1

VSX-LX51

[2] Front panel

A

B

2 3 4

C

D

E

F

10

1

2 3 4

VSX-LX51

[3] Display

5

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

11

1

[4] Remote control

AXD7518

(VSX-LX51 Only)

A

B

2 3 4

C

D

E

F

12

1

2 3 4

VSX-LX51

5

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

13

1

To keep the product quality after servicing, confirm recommended check points shown below.

No.

Procedure Check points

1

Confirm whether the customer complain has been solved. If the customer complain occurs with the particular source, such as Dolby Digital, DTS, AAC, DVD-A and HDMI, input it for the operation check.

The customer complain must not be reappeared. Video, Audio and operations must be normal.

2

Check the analog audio playback. (Make the analog connections with a DVD player.)

Each channel audio and operations must be normal.

3

Check the digital audio playback. (Make the digital connections with a DVD player.)

Each channel audio and operations must be normal.

4

Check surround playback. (Select Surround mode and check the multichannel operations via the DSP circuit.)

Each channel audio and operations must be normal.

5

Check the video outputs. (Connect with a DVD player.)

Video and operations must be normal.

6

Check the sound from headphone output. Sound must be normal, without noise.

7

Check the appearance of the product. No scratches or dirt on its appearance after receiving

it for service.

See the table below for the items to be checked regarding video and audio:

Items to be checked regarding video Item to be checked regarding audio

Block noise Distortion Horizontal noise Noise Dot noise Volume too low Disturbed image (video jumpiness) Volume too high Too dark Volume fluctuating Too bright Sound interrupted Mottled color

2 3 4

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

A

B

C

D

E

F

14

1

2 3 4

VSX-LX51

AUDIO IN ASSY

A

FRONT IN ASSY

D

DISPLAY ASSY

M

POWER SW ASSY

O

MULTI JOG ASSY

N

HEADPHONE ASSY

Q

REGULATOR ASSY

U

DC/DC ASSY

V

BINDER ASSY

H

POSI1 ASSY

W

POSI3 ASSY

Y

POSI2 ASSY

X

BIND_L_BACK ASSY

J

BIND_L_FRONT ASSY

I

PRIMARY ASSY

T

PRE-STAGE AMP ASSY

S

BIND_R_BACK ASSY

L

BIND_R_FRONT ASSY

K

HDMI&DVC ASSY (VSX-LX51)

F

INTERFACE ASSY

E

DSP&USB ASSY

C

POWER AMP ASSY

R

DIODE ASSY

P

HDMI ASSY (VSX-1018AH-K, VSX-1018AH-S)

G

MAIN ASSY

B

5

3.2 PCB LOCATIONS

6 7 8

A

B

C

D

E

VSX-LX51

5

6 7 8

F

15

1

LIST OF ASSEMBLIES

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.

NOTES:

Mark Symbol and Description

VSX-LX51

/HYSXJ5

VSX-1018AH-K

/YSXJ5

VSX-1018AH-S

/YSXJ5

NSP

1..MAIN ASSY AWK8053 AWK8058 AWK8058

1..AUDIO IN ASSY AWK8051 AWK8051 AWK8051

1..COMPLEX ASSY AWK8047 AWK8064 AWK8064

2..DISPLAY ASSY AWX9117 AWX9214 AWX9214

2..POWER SW ASSY AWX9118 AWX9118 AWX9118

2..MULTI JOG ASSY AWX9119 AWX9119 AWX9119

2..BINDER ASSY AWX9120 AWX9120 AWX9120

2..FRONT IN ASSY A

WX9121 AWX9121 AWX9121

2..HEADPHONE ASSY AWX9122 AWX9122 AWX9122

2..PRIMARY ASSY AWX9124 AWX9124 AWX9124

NSP 1..LOCAL POWER ASSY AWK8041 AWK8041 AWK8041

2..DIODE ASSY AWX8985AWX8985AWX8985

2..REGULATOR ASSY AWX8986AWX8986AWX8986

2..DC/DC ASSY AWX8988 AWX8988 AWX8988

2..PRE-STAGE AMP ASSY AWX8989AWX8989AWX8989

2..INTERFACE ASSY AWX8990

A

WX8990 AWX8990

NSP 1..AMP ASSY AWK8038 AWK8038 AWK8038

2..POWER AMP ASSY AWX8984AWX8984AWX8984

2..POSI1 ASSY AWX9132 AWX9132 AWX9132

2..POSI2 ASSY AWX9133 AWX9133 AWX9133

2..BIND_L_FRONT ASSY AWX9217 AWX9217 AWX9217

2..BIND_L_BACK ASSY AWX9218 AWX9218 AWX9218

2..BIND_R_FRONT ASSY AWX9219 AWX9219 AWX9219

2..BIND_R_BACK ASSY A

WX9220 AWX9220 AWX9220

2..POSI3 ASSY AWX9223 AWX9223 AWX9223

1..HDMI&DVC ASSY AWX9170 Not used Not used FLASH ROM AYW7203

1..HDMI ASSY Not used AWX9131 AWX9131 FLASH ROM

1..DSP&USB ASSY FLASH ROM

AYW7203 AYW7203

AWX9176 AWX9176 AWX9176 AYW7213 AYW7213 AYW7213

1..FM/AM TUNER UNIT AXX7248 AXX7248 AXX7248

Not used Not used

Not used

A

2 3 4

B

C

D

E

F

16

1

2 3 4

VSX-LX51

5

Name Jig No. Remarks

11P board to board extension jig

cable GGD1576

Diagonosis

19P board to board extension jig cable GGD1577

GGD1492

Diagonosis Diagonosis

11P FFC

30P board to board extension jig cable

GGD1578

Diagonosis

RS-232C I/F jig GGF1348

Update the Flash ROMS

7-pin FFC VDA1681

Update the Flash ROMS

[1] Jigs list

3.3 JIGS LIST

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

17

1

VEF1040-A

VEF1040-A VEF1040-A

VEF1040-AVEF1040-A

VEF1040-A

JA3601

JA3631

JA3641

JA3651

VIDEO IN

AUDIO IN

OPT IN

USB

MIC IN

CN3601

CN3602

*CN3001 *CN3002

CN3003

JH3001JH3002

CN3401 CN3501

CN109

J51 ADD7635 33/610

for download

JP3001

D20PDD0305E

D20PDD0405E

JP3002

CN1001CN1002

CN801

CN4809

J0 ADX7619

9/470(Shielded Cable)

J52 ADD7636

11/390

CN702

CN101CN102

CN118

CN703

CN704

CN104CN103

CN601

JP113JP117JP116

CN1401

CN116

CN111CN119CN112

CN7001CN7003CN7002

PG02KA-E07

PG03KS-E07

PG02KA-E07

CN110

CN506

J54 ADD7637

11/100

CN501

J55 ADD7638

23/180

*CN117

for service

CN106 CN107 CN108

CN4803CN4802CN4801

CN502CN503

CN4806

CN4805

11/60

CN1

ADD7639

J56

CN507

*4

4/400

ADX7652

PF09PG-R35 9/350

PF07PG-R40 7/400

JP3710 D20PDY0620E

J**

JP****

CABLE WIRE

1.25mm FFC

2.0mm FLAT CABLE

1.25mm FFC CONNECTOR(L)

CN****

(*1.00mm FFC CONNECTOR)

1.25mm FFC CONNECTOR(I)

JH****

CN****

2.0mm CABLE HOLDER

2.0mm WIRE TRAP

KM200NA*

CN****

B*B-EH EH CONNECTOR

ANOTHER TYPE CODE SOCKET

1.25mm B to B

XKM****

XKP****

CN****

TUC-P**X-B1

1.25mm B to B

2.0mm B to B SOCKET

TUC-P**P-B1

2.0mm B to B CONNECTOR

!

HYS,YS

*1

T1501

ATT7419

AC CORD VDG1080

*2

HYS,YS

REK1061

(T5AL/250V)

FU1 FU2,3

-

FU4

AEK1060 (T4AL/250V)

FU5

(T3.15AL/250V)

AEK1059

FU6,7

AEK7072

(T800mAL/250V)

FU8,9

(T2.5AL/250V)

AEK1058

!

*3

CN**

BOARD IN WIRE

CN****

of identical designation.

be sure to use parts

The

the importance of the

Therefore, when replacing,

safety factor of the part.

component parts indicates

mark found on some

FRONT IN ASSY (AWX9121)

D

DISPLAY ASSY (VSX-LX51 : AWX9117) (VSX-1018AH-K, VSX-1018AH-S : AWX9214)

M

POWER SW ASSY (AWX9118)

O

MULTI JOG ASSY (AWX9119)

N

HDMI & DVC ASSY

(VSX-LX51 : AWX9170)

F

HDMI ASSY

(VSX-1018AH-K,

VSX-1018AH-S : AWX9131)

G

MAIN ASSY (VSX-LX51 : AWK8053) (VSX-1018AH-K, VSX-1018AH-S : AWK8058)

B

BIND_L_FRONT ASSY (AWX9217)

I

BIND_L_BACK ASSY (AWX9218)

J

DSP & USB ASSY (AWX9176)

C

BINDER ASSY (AWX9120)

H

BIND_R_FRONT ASSY (AWX9219)

K

BIND_R_BACK ASSY (AWX9220)

L

INTERFACE ASSY (AWX8990)

E

FM/AM TUNER UNIT (AWX7248)

POSI 1 ASSY (AWX9132)

W

POSI 3 ASSY (AWX9223)

Y

POSI 2 ASSY (AWX9133)

X

2 3 4

4. BLOCK DIAGRAM

4.1 OVERALL WIRING DIAGRAM

A

B

C

D

E

F

18

1

2 3 4

VSX-LX51

5

CN504

CN4804

J58

19/165

ADD7641

CN6603

ADD7640

J57

17/75

CN505

CN6410 CN6110 CN6310 CN6610 CN6010 CN6510 CN6210

CN5410

CN5310

CN5210

CN5610

CN5010

CN5110 CN5510

CN5802

CN4807 CN4808

CN5803

CN4251

CN4004CN4003

CN4252

!

FU4

FU5

*3

!

FU6

FU7

!

FU8

FU9

!

CN4001

CN4071

JH3701

JP5750

PF04PG-R50

*3

MAIN TRANS

*1

!

T1501

FU2

FU3

FU1 !

!

CN3706 3709

CN3704

*3

CN5701

!

*2

AC CORD

JA3701

JA3702

CN4701

JH5801

CN3451

JP5801

D20PDY0460E

JP5701

ANOTHER TYPE

CN****

B to B SOCKET

ANOTHER TYPE

B to B CONNECTOR

HYS,YS

TUNER MODULE

AXX7248

J56

ADD7637

FAN D-TERMINAL J59

--

-

*4 *5 *6

ADX7051

DC/DC ASSY (AWX8988)

V

REGULATOR ASSY (AWX8986)

U

PRIMARY ASSY (AWX9124)

T

PRE-STAGE AMP ASSY (AWX8989)

S

DIODE ASSY

(AWX8985)

P

HEADPHONE

ASSY

(AWX9122)

Q

POWER AMP ASSY (AWX8984)

R

AUDIO IN ASSY (AWK8051)

A

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

: The power supply is shown with the marked box.

4/500

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

19

1

S

A

F G

C

D

R Q

ER

IC101 HDMI RECEIVER SII9135CTU

OPT IN1

OPT IN2

OPT IN3

COAX

BD

HDMI IN1

HDMI IN2

IC1151 HDMI SELECTOR

VIDEO

USB

MIC

IC801 USB HOST LC87F1HC8A

IC101 DIR&DIT

AK4114VQ

OPT OUT

HDMI

IC202 USB SELECTOR

IC203 HDMI SELECTOR

IC401 1st DSP DSPA56720AG

RX3

2ch DAC 192kHz/24bit ×4

IC251 BASICAUDIO SELECTOR

IC301 HDMI TRANSMITTER SII9134CTU

IC591 2ch ADC 96kHz/24bit

IC681 DAC for 2nd ZONE 192kHz/24bit

TX0

I2S

CD

CD-R

TV/SAT

DVR1

DVR2

TUNER Module

DVD

MULTI IN L/R

MULTI IN SL/SR

MULTI IN SBL/SBR

MULTI IN C/SW

PREOUT L/R

PREOUT SW

PREOUT SL/SR

PREOUT SBL/SBR

CD-R REC

DVR1 REC

DVR2 REC

ZONE2 OUT

IC501 Selector / Volume / PRE Amp BD3473KS2

IC503 ZONE2 E-VOL M61545FP

SP L/R

SP C

SP SL/SR

SP SBL/SBR

HP

LPF

SW DownMix

IC601 IC621 IC641 IC661

JA1152

JA1151

JA1102

JA102

JA103

JA104

JA101

(1/2)

LX51 Only

JA301

JA105

(1018AH:HDMI IN1−>BD)

JA101

(2/2)

JA3601

JA3631

JA3651

JA3641

IC701 IC741 IC761 IC781

IC801

IC502,IC702

JA502

JA505

JA503

JA504

SW PRE Amp IC821

NJM4565MD

<<POWER AMP>>

JA502

JA505

JA503

JA504

JA3451

JA5801

JA5801 JA5802

JA5802

JA506

JA507

JA5803

JA5804

PREOUT C

JA506

2 3 4

4.2 BLOCK DIAGRAM FOR AUDIO BLOCK

A

B

C

D

E

F

20

1

2 3 4

VSX-LX51

DET

Sync

C

TC74HC4051AFT

IC1202

+

C

Y

C

Y

C

Y

C

CCYYY

TC74HC4051AFT

IC1201

CN102

11

CN3601

CN108

IC1006

17 22

13

PDC162A

+

IC1203

TC74HC4053AFT

LA7109

IC1205

+

C

Y

Y C

161420

18

CN102

24

+

TC74HC4053AFT

+

IC1003

+

TC74HC4051AFT

IC1001

+

TC74HC4051AFT

IC1002

+

LA7109

IC1004

13

4

5

2

3

15

14

1

12

2117

14 23

13

4

2

15

5

3

14

1

12

13

4

2

15

5

3

14

13

14 31

11 25

7

3

12

5

1

2

4

15

433

351

5

3

4

17

12

13

2

1

15

14

7

11

21

23

31

25

12

1

4

13

2

15

5

3

4

14

1

12

1

33

35

CVOUT

C Selector

DVR 2

6dB AMP

MUTE

OUT

DVR 2

DVR 1

Y Selector

TV/SAT

DVD

to DVC

VIDEO

from DVC

OSD IC

for Video

Selector

DVR 2

Selector

Input

DVR 1

TV/SAT

Selector

for DVC/Through

MUTE

C

Y MUTE

OUT

DVR 1

MONITOR OUT

from DVC

to DVC

for OSD/Through (VSX-1018AH)

Selector

for DVC/Through (VSX-LX51)

6dB AMP

MUTE

OUT

MONITOR

OUT

DVR 1

DVD

MUTE

Input Selector

for MR Video & OSD

OUT

DVR 2

ZONE 2 OUT

• COMPOSITE BLOCK

FRONT-IN ASSY

INTERFACE ASSY

D

E

MAIN ASSY

B

• S-VIDEO BLOCK

9

10

11

9

10

11

51C 51B 51A

9

10

11

51C

51B

51A

9

10

11

S53ABC

9

10

11

51C 51B 51A

M51C

M51B

9

10

V53C

V53B

M51A

20

13

30

3

20

13

30

3

Buffer

LX51 Only

1018AH Only

IC1271

MAIN

5

6 7 8

4.3 BLOCK DIAGRAM FOR VIDEO BLOCK

A

B

C

5

D

E

F

21

VSX-LX51

6 7 8

1

TC74LVX4052FT

IC1401

TC74LVX4053FT

IC1403

NJM2581M

IC1404

IC1402

TC74LVX4052FT

CN102

1

4

3

2

5

12

15

11

13

14

3

5

1

4

2

13

12

2

3

5

12

11

13

3

54

11

9

15

1

14

13

14

15

IN3

Cb

Cr

for DVC/Through

Y

Cr

IN2

Y

Cb

Cr

Cb

IN1

Selector

6dB AMP

Cr

Cb

COMPONENT OUT

Y

Input Selector

from DVC

• COMPONENT BLOCK

MAIN ASSY

B

12 810 2 64

Buffer

9

10

C52A

C52B

9

10

C52A

C52B

9

10

11

C53ABC

to DVC

LX51 Only

1018AH Only

COMPONENT

2 3 4

A

B

C

D

E

F

22

VSX-LX51

1

2 3 4

5

HDMI IN2

HDMI OUT

HDMI IN1

BD IN

JA1151

(19P)

JA1152

(19P)

IC1151

IC101

IC301

SD[1:3]

HDSPDIF

DCK

HSYNC

D[0:5,8:9, 12:15,24:27]

D[16:23]

D[28:35]

JA301

(21P)

IC1301

FLI2310-LF-CF

IP Convert/Scaler

IC1351

IS42S32200E-6TL

64M SDRAM

4

141612

20

CN1002

(30P)

IC401

ADV7800BSTZ-80

VIDEO DECODER

VCV IN

VCY

IC601

ADV7172KSTZ

VIDEO ENCODER

VCV OUT

VCC

VCCY OUT

VCCb OUT

VCCr

P[22:29]

HS

VS

IC1381

TC74LCX541FTS1

IC1383

TC74LCX541FTS1

IC1384

IC202

ICS571LMF

MCLKO,BCKO,LRCKO,SD[0:3]O,SPDIFO

CN1001

(30P)

IC501

PEG118A

HDMI CPU

IC502

AYW7243

4M Flash ROM

TC74VHC541FTS1

JA1102

(19P)

IC251

TC74LCX157FTS1

AUDIO SELECTOR

HDMI RECEIVER

HDMI TRANSMITTER

HDMI SELECTOR

HDMCLK

MCLK,SCK,WS,SD0

26-

BAMCK,BABCK,BALRCK,BADAT

IC203

TC7WH74FU

IC204

TC7WH157FU

IC205

TC7WH157FU

D[6:7,10:11

SCK,WS,SD0

F

6 7 8

4.4 BLOCK DIAGRAM FOR HDMI FOR VSX-LX51

A

B

C

D

E

F

VSX-LX51

5

6 7 8

23

1

HDMI IN

HDMI OUT

BD IN

JA1152

(19P)

IC101

IC301

SD[1:3]

HDSPDIF

DCK

VSYNCDEHSYNC

D[0:5,8:9,12:15,24:27

D[16:23]

D[28:35]

JA301

(21P)

8

10

12

18

20

24

CN1002

(30P)

IC401

ADV7800BSTZ-80

VIDEO DECODER

VCV IN

VCYINVCC IN

VCCY IN

VCCb IN

VCCr IN

P[22:29]

LLC

HS

VS

P[12:19]

IC1256

TC74LCX541FTS1

IC1257

TC74LCX541FTS1

IC1258

MCLKO,BCKO,LRCKO,SD[0:3]O,SPDIFO

6-15

CN1001

(30P)

IC501

PEG118A

HDMI CPU

IC502

AYW7243

4M Flash ROM

TC74VHC541FTS1

IC201

JA1102

(19P)

HDMCLK

MCLK,SCK,WS,SD0

26-

29

BAMCK,BABCK,BALRCK,BADAT

P[10:11,20:21]

D[6:7,10:11

SCK,WS,SD0

IC251

TC74LCX157FTS1

IC1259

TC7SZ125FU

G

HDMI RECEIVER

HDMI TRANSMITTER

AUDIO SELECTOR

2 3 4

4.5 BLOCK DIAGRAM FOR HDMI FOR VSX-1018AH

A

B

C

D

E

F

24

VSX-LX51

1

2 3 4

5

IC808

341S2154

IC851

TC74VHC157

IC802

AAT4618

CN801

D+

D-

SPI_SIMO

SPI_UCLK

SPI_nSS

CPRST

CPRDY

SPI_SOMI

UMCKIMCK

OSCU

ULR

UBCK

MSSS

ILRCK

IBCLK

MSCK

ISDAT

MSDA

UDT

to IC202

IPIF_SW

UASW

USBCTL

V5USB

D-

D+

GNDD

V5DU

XFLAG

CN701

CN702(KU model)

IPIF SW

USB AUDIO SW

USB CTRL

USB XFLAG

CN704

V+5D

(from IC503)

24.576MHz

from IC705Q871

Q872

USB POWER

USB RESET

USB DAI

USB DAO

IC801

PDC180A8

USB U-Com

(FLASH built-in)

5=>3

3=>5

IC701

IC702

12

11

218

V+3DU V3D

V+3DU

37

38

USBREQ

OSCU

(from IC401 83p)

Audio OUTPUT

28

3427332631

18

USBRST

USB DAI USB DAO

12

13

14

22

21

1

45

44

2

15

USBREQ

46

Digital Audio

Signal selector

SW

USB Power SW

iPod

authentication

IC

USB Bus Power

Control

(Over Current

detection)

USB Block DSP Block

Digital Audio Signal Output

C

6 7 8

4.6 BLOCK DIAGRAM FOR USB BLOCK

A

B

C

D

5

E

6 7 8

VSX-LX51

F

25

1

u-com

RENESUS

M32C/87

DPS Control

144pin

OSD IC

HDMI Control

u-com

RENESUS

M16C/62P

HDMI/DVC

VIDEO SW IC

DSP

Expantion

Port IC

TUNER

MODULE

RDS IC

VOLUME

FUNCTION

IC

FL

USB

(SANYO

USB)

EEPROM

64kbyte

PE5615A-K

FL Driver

u-com (100p, 5V)

•FL,LED

PDC158A8

Event u-com

(100p, 5V)

•KEY,REMOTE

MAIN

IC801

IC401

IC601

(LX51 only)

IC1005

IC3001

V3001

IC3004

IC1006

IC261

IC501

IC1405

IC501

IC202

IC101

IC1001,IC1002,IC1003

IC1201,IC1202,IC1203

IC1401,IC1402,IC1403

A

F G

C

M

B

2 3 4

4.7 BLOCK DIAGRAM FOR U-COM

A

B

C

D

E

F

26

1

2 3 4

VSX-LX51

5

MAIN ASSY

REGULATOR ASSY

PRIMARY ASSY

FU1

T3701

STBY

TRANSFORMER

ATT7040(HYS)

RY

IC3701

NJM78M56

+5.6V

AC

T1501

POWER

TRANSFORMER

ATS7419(HYS)

IC4004

NJM78M05

+5V

IC4005

NJM78M56

+5.6V

IC4006

NJM79M05

-5.6V

FL POWER

SUPPLY

BLOCK

IC5763

BA178M12

+12V

IC5751

NJM78M12

+12V

IC5752

NJM79M12

-12V

VL SELECTOR

+VH

SUPPLY

BLOCK

-VH

SUPPLY

BLOCK

POWER AMP ASSY

IC4251

PQ1CG3032

+5V

DC/DC ASSYHDMI ASSY

DSP ASSY

V+5AD

V+13UN

V+5D

VIDEO BLOCK

V-5.6V

V+5.6V

DISPLAY ASSY

IC3001

FL

u-com

IC3004

EVENT

u-com

LED BLOCK

KEY BLOCK

IC101

MAIN

u-com

MUTE Logic

232C Logic

RDS / Logic

3-5 / 5-3

V+5.6U

V+5.6ST

FL AC

V-VF

FL

DISPLAY

POWER AMP

BLOCK

±VL

PRESTAGE-AMP

ASSY

±VH

INTERFACE

ASSY

FRONT IN ASSY

AUDIO

ASSY

12V

TRG

232C

/ IR

V+12TRG

±7V

Rough

Lock

V+5OPT

V±7A

IC501

E-VOL

V±12A

LPF

PRE Amp

TUNER Module

V+9T

VSX model only

+9V

Rough

Lock

V+12T

+5V

Rough

Lock

+3V

Rough

Lock

-5V

Rough

Lock

-3V

Rough

Lock

V-3C

V+3C

V-5V

V+5V

IC1001

BD9011KV

+3.3/2.5V

IC1071

NJM78M05

+5V

IC1051

PQ200WNA1

+5V

IC704

BD9107FVM

+1V

IC705

PQ1LAX95M

+3.3V

A/D

comv.

R

U

S

E

A

V

F

G

C

D

M

B

T

6 7 8

4.8 BLOCK DIAGRAM FOR POWER SUPPLY BLOCK

A

B

C

D

5

6 7 8

VSX-LX51

E

F

27

1

Step 1: MUTE pin

Replace IC401.

Check the IC705.

Replace IC705.

To Step 2

To Step 4

Step 0: Preliminary confirmation

Confirm the following items before checking

Do screws

of COAX Jack

securely tighten

?

Tighten screws securely.

Note:

If this section is not fixed, the GND for DSP module may lifted from the chassis and cause instable potential and lead to product failures.

No

Ye s

To Step 1

IC401 (Pin 84)

Is the

voltage of output

signal 0 V

?

No

Ye s

DS0MUT3

Step 3: Regulator IC

Check the IC704 and REGULATOR Assy.

Check the Q601 and REGULATOR Assy.

IC704 (Pins 7,8)

Is the

voltage of around

5 V to 5.3 V

input?

No

Ye s

(to chassis)

IC705 (Pin 5)

Is the

voltage of 3.3 V

output?

No

(to chassis)

IC705 (Pin 4)

Is the

voltage of around

5 V to 5.3 V

output?

No

Ye s

Replace IC704.

L705, L704 (stby side)

Is the

voltage of 1 V

output?

No

Ye s

(to chassis)

Replace Q601 and Q561.

Q601 (Pins 1, 2, 5, 6)

Is the

voltage of 5 V

output?

No

Is the

voltage of 5 V

input?

Q601 (Pin 4)

No

Ye s

(to chassis)

Part shape and Pin arrangement of IC705

Step 2: BtoB connector and FFC

CN702, CN703, CN704, CN801

Are the

connectors securely

inserted?

Turn the power off and insert the connectors securely.

No

Ye s

CN601

Is the

FFC securely

inserted?

Turn the power off and insert the connectors securely.

No

Ye s

To Step 3

BtoB connector

FFC

Simplified diagnosis

Errors in DSP Assembly (Areas simply and roughly predictable by machine operation only)

• Sound abnormality in Delay If sound abnormality does not occur in the Delay OFF state but occurs in the Delay ON state, it is most likely that a failure has occurred in SDRAM (IC301) or LATCH (IC303, IC304) in the 1st DSP Block.

• No sound at analog signal input If sound abnormality does not occur with a digital signal input (COAX, OPT) but occurs only with an analog signal input, it is most likely that a failure has occurred in the AD converter (IC591).

Troubleshooting

[1] DSP Troubleshooting

2 3 4

5. DIAGNOSIS

5.1 DIAGNOSIS FLOWCHART

A

B

C

D

E

F

28

1

VSX-LX51

2 3 4

5

Step 7-1: DIR

Step 7

A

To Step 6

Check the parts and patterns in the path.

Check the HDMI ASSY, and the parts and patterns in the path.

IC701

Do

convert 5 V into

3 V for input?

Replace IC701.

No

Ye s

Check the OPTICAL IN JACK, and parts and patterns in the path.

Check the pattern to pin 10 of IC851. Replace IC851.

Check the FRONT IN ASSY, and parts and patterns in the path.

IC101 (Pins 1, 3, 5 (VSX-LX51 only))

OPTICAL

Check that the S/PDIF signal is output. Check that changes by pulling out and inserting the digital input lines.

When the COAX or OPT is input, go to Step 7-1. When the USB is input, go to Step 7-2. When the HDMI (SPDIF line) is input, go to Step 7-1.

Used Source

[dts HD High Resolution Audio], [dts HD LBR], [Dolby Digital Plus], [2ch of 48kHz sampling rate or less], [Other compression stream]

When the HDMI (I2S line) is input, go to Step 7-3.

Used Source

[dts HD Master Audio], [Dolby True HD], [PCM or LPCM of 88.2kHz sampling rate or more], [LPCM Multi ch]

When the HDMI (SACD) is input, go to Step 7-5.

Used Source [SACD]

Can

observe the

digital signal

?

No

(0 V ⇔ 4 V)

Ye s

(0 V ⇔ 4 V)

IC101 (Pins 42, 44)

COAX

Can

observe the

digital signal

?

No

Ye s

Check that it changes in the Playback and Pause modes of the HDMI.

(0 V ⇔ 3.3 V)

IC101 (Pin 48)

From HDMI ASSY

Can

observe the

digital signal

?

No

(1.65 V center, amplitude more than 0.2 Vp-p)

IC101 (Pin 7)

FRONT OPTICAL

Can

observe the

digital signal

?

No

Ye s

Step 6: X'tal

To Step 7

Replace IC503 or X531.

Ye s

IC503 (Pin 6)

No

Is there

a 24.576 MHz

output?

Check the pattern to pin 30 of IC101. Replace IC101.

IC503 (Pin 12)

No

Is there

a 24.576 MHz

output?

Check the pattern to pin 80 of IC401. Replace IC401.

Ye s

IC503 (Pin 10)

No

Is there

a 24.576 MHz

output?

Ye s

IC503 (Pin 8)

No

Is there

a 24.576 MHz

output?

Step 5: 5 V to 3 V conversion

Step 4: 3 V to 5 V conversion

IC702

Do

convert 3 V into

5 V for input?

To Step 5

Replace IC702.

No

Ye s

6 7 8

A

B

C

D

5

VSX-LX51

6 7 8

E

F

29

1

Replace IC101.

Ye s

IC101 (Pin 26)

DIRB (Bit clock)

No

Is there

a bit clock

output?

(0 V ⇔ 3.3 V)

To Step 7-3

Ye s

IC202 (Pin 4)

S2DT (Data)

Is there

a data

output?

(0 V ⇔ 3.3 V)

Ye s

IC202 (Pin 7)

S2BC (Bit clock)

Is there

a bit clock

output?

(0 V ⇔ 3.3 V)

Ye s

IC202 (Pin 12)

S2LR (LR clock)

Is there

a LR clock

output?

(0 V ⇔ 3.3 V)

To Step 7-2

Ye s

IC202 (Pin 9)

S2MC (Master clock)

Is there

a master clock

output?

(0 V ⇔ 3.3 V)

Replace IC202.

At COAX, OPT, HDMI or SPDIF input

Check the path between Pin 1 of IC202 and microcomputer.

No

Is the

voltage Pin 1 of

IC202 at

0 V?

Ye s

Replace IC202.

At USB input

No

Is the

voltage pin 1

of IC202 at

5 V?

Ye s

Step 7-2: Switch

Check that the data and clock signals are output.

A

Replace IC101.

(0 V ⇔ 3.3 V)

Ye s

IC101 (Pin 24)

DIRL (LR clock)

No

Is there

a LR clock

output?

Replace IC101.

(0 V ⇔ 3.3 V)

Ye s

IC101 (Pin 25)

DIRD (Data)

No

Is there

a data

output?

Replace IC101.

(0 V ⇔ 3.3 V)

Check the other assy. (peripheral circuit of the microcomputer)

IC101 (Pin 23)

DIRM (Master clock)

No

Ye s

Is there

a master clock

output?

Is the

voltage Pin 31

(PDN input signal)

of IC101 at

5 V?

No

Check that the data and clock signals are output.

A

2 3 4

B

C

D

E

F

30

1

2 3 4

VSX-LX51

5

To Step 8

Ye s

IC205 (Pin 6)

SDTI (Data)

Is there

a data

output?

(0 V ⇔ 3.3 V)

Ye s

IC205 (Pin 8)

CDTI (Data)

Is there

a data

output?

(0 V ⇔ 3.3 V)

No

Replace IC205.

Is the

voltage Pin 4 /

Pin 10 of IC205

at 3.3V?

Ye s

Step 7-4: Switch

Check that the data is output. (Sch and Cch Signal having)

Ye s

IC203 (Pin 4)

FDTI (Data)

Is there

a data

output?

(0 V ⇔ 3.3 V)

Ye s

IC203 (Pin 7)

BCKI (Bit clock)

Is there

a bit clock

output?

(0 V ⇔ 3.3 V)

Ye s

IC203 (Pin 12)

LCKI (LR clock)

Is there

a LR clock

output?

(0 V ⇔ 3.3 V)

Ye s

IC203 (Pin 9)

MCLK (Master clock)

Is there

a master clock

output?

(0 V ⇔ 3.3 V)

Replace IC203.

At COAX, OPT, HDMI SPDIF or USB input

Check the path between Pin 1 of IC203 and microcomputer.

No

Is the

voltage Pin 1 of

IC203 at

0 V?

Ye s

Replace IC203.

At HDMI (I2S) input

Check the path between Pin 1 of IC203 and microcomputer.

No

Is the

voltage Pin 1 of

IC203 at

5 V?

Ye s

Step 7-3: Switch

Check that the data and clock signals are output.

To Step 7-4 (For I2S line in the HDMI input) To Step 8 (For other line)

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

31

1

Step 8: DSP output (digital)

Ye s

Digital output of each CH when inputting the digital signal with audio.

Replace IC401.

IC401 (Pin 124)

Surround L/R data

No

Is the output

0 V fixing?

B

Replace IC401.

Ye s

IC401 (Pin 123)

Center/LFE data

No

Is the output

0 V fixing?

Ye s

IC401 (Pin 123)

Center/LFE data

No

Is there

a data output?

Ye s

IC401 (Pin 124)

Surround L/R data

No

Is there

a data output?

Ye s

IC401 (Pin 125)

Front L/R data

No

Is there

a data output?

(0 V ⇔ 3.3 V)

Digital output of each CH when inputting the digital signal (-∞ dB (no audio)).

To Step 8

Ye s

IC203 (Pin 4)

DSDFL (DSD data)

Is there

a data

output?

(0 V ⇔ 3.3 V)

Ye s

IC203 (Pin 7)

BCKI (DSD clock)

IC205 (Pin 3)

DSDFR (DSD data)

Is there

a clock

output?

(0 V ⇔ 3.3 V)

No

Step 7-5: Switch (SACD only)

Check that the data and clock signals are output.

Check that the data signal is output.

Replace IC203.

Check the path between pin 1 of IC203 and microcomputer.

No

Is the

voltage Pin 1

of IC203 at

5 V?

Ye s

IC401 (Pin 122)

Surround Back L/R data

No

Is there

a data output?

(0 V ⇔ 3.3 V)

Replace IC401.

There is a possibility of the Boot error. (Identification of the defective part near DSP is extremely difficult.)

No

Ye s

Is there

a data

output?

(0 V ⇔ 3.3 V)

Ye s

IC205 (Pin 11)

DSDSL (DSD data)

Is there

a data

output?

No

Replace IC205.

Check the path between Pin 1 / Pin 13 of IC205 and microcomputer.

No

Is the

voltage of pin 1/

pin 13 of IC205

at 0 V?

Ye s

Is the

voltage of

DS0RST at 3.3 V?

(Does it drop to 0V

periodically?)

A

2 3 4

B

C

D

E

F

32

1

2 3 4

VSX-LX51

5

Replace IC621.

Ye s

IC621 (Sch) (Pin 8)

Surround R out

No

Is there

a data output?

Replace IC601.

Ye s

IC601 (Fch) (Pin 11)

Front L out

No

Is there

a data output?

Replace IC601.

Ye s

IC601 (Fch) (Pin 8)

Front R out

No

Is there

a data output?

Step 9: DAC output (analog)

Analog output of each CH when inputting the digital signal with audio.

Replace IC641.

Ye s

IC641 (Cch) (Pin 11)

Center out

No

Is there

a data output?

Replace IC641.

Ye s

IC641 (Cch) (Pin 8)

LFE out

IC401 (Pin 122)

Surround Back L/R data

No

Is there

a data output?

Replace IC661.

Ye s

IC661 (SBch) (Pin 11)

Surround Back L out

No

Is there

a data output?

Replace IC661.

Ye s

IC661 (SBch) (Pin 8)

Surround Back R out

No

Is there

a data output?

Replace IC621.

Ye s

IC621 (Sch) (Pin 11)

Surround L out

No

Is there

a data output?

Ye s

Replace IC401.

IC401 (Pin 125)

Front L/R data

No

Is the output

0 V fixing?

Ye s

Replace IC401.

No

Is the output

0 V fixing?

B

C

IC501 (Pin 3)

DAMC (Master clock)

Ye s

Replace IC501.

No

Is there

a master clock

output?

Check that the clock signal is output.

(0 V ⇔ 3.3 V)

IC501 (Pin 6)

DABC (Bit clock)

Ye s

Replace IC501.

No

Is there

a bit clock

output?

(0 V ⇔ 3.3 V)

IC501 (Pin 11)

DALR (LR clock)

Ye s

Replace IC501.

No

Is there

a LR clock

output?

To Step 9

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

33

1

Replace IC621.

Ye s

IC621 (Sch) (Pin 8)

Surround R out

No

Replace IC601.

Ye s

IC601 (Fch) (Pin 11)

Front L out

No

Replace IC601.

Ye s

IC601 (Fch) (Pin 8)

Front R out

No

Replace IC641.

Ye s

IC641 (Cch) (Pin 11)

Center out

No

Replace IC641.

Ye s

IC641 (Cch) (Pin 8)

LFE out

No

Replace IC661.

Ye s

IC661 (SBch) (Pin 11)

Surround Back L out

No

Replace IC661.

Ye s

IC661 (SBch) (Pin 8)

Surround Back R out

No

Replace IC621.

Ye s

IC621 (Sch) (Pin 11)

Surround L out

No

C

Analog output of each CH when inputting the digital signal (-∞ dB (no audio)).

End

Is the output

2.5 V fixing?

Is the output

2.5 V fixing?

Is the output

2.5 V fixing?

Is the output

2.5 V fixing?

Is the output

2.5 V fixing?

Is the output

2.5 V fixing?

Is the output

2.5 V fixing?

Is the output

2.5 V fixing?

A

2 3 4

B

C

D

E

F

34

1

VSX-LX51

2 3 4

5

DSP Block Diagram

I2S MCLK I2S DATA (2ch)

I2S DATA (Compression Include(dts HD High Resolution Audio, dts HD LBR, Dolby Digital Plus) or 2ch(under 48KHz for HDMI)) I2S or DSD DATA (from HDMI "dts HD Master Audio" "Dolby TrueHD" "SACD" "LPCM Multi" "PCM over 88.2KHz or LPCM")

I2S LRCK, BCK Control/Memory Bus Line,etc Analog Audio Signal SPDIF,Operation Clock,etc

V1D(1.0V)

IC704

V5A CN704

BD9107FVM

3

V5D

V3D(3.3V)

IC705

PQ1LAX95MSPQ

8,9

CN601

Analog in(L/R)

21,23

Analog 8ch OUT

SPDIF out(1)

OPT Jack on-board

JA105

COAX in(2) CN601

JA101

24.576MHz

JA102 SPDIF in

OPT Jack 3 on-board

JA103

IC503

74VHCU04

CN703

CN801

Control in

3

Control out

CN704

13

19,20

18 22

15-18

74VHC125 IC205

CN704

V5DU

CN703

10

30,28

29 26 IC401

747SH32FU

Pin No. SACD Signal Other Signal

IC751

85 Data(C) - 86 Data(SW)-

97 Data(FL) Data(FL,FR) 98 Data(FR) Data(SL,SR) 99 Data(SL) Data(C,SW)

Data(SR) Data(SBL,SBR)100

Buffer

IC501

74LCX08

SW

IC203

74LCX157

LR/BCKI SDI0_1 DSP MCLK IC401

DSPA56720AG

SDI1_1~SDI3_1 SDI0~SDI1

ADC

IC591

AK5358AET

FLASH

ROM

IC302

AYW7247

SDRAM

IC301

64Mbit

(4bank*1M

*16bit)

MCLK LR/BCKO DTO

HDMI in

HDMI out (Basic Audio)

DIR

IC101

AK4114VQ

USB

Block

(SANYO)

A2-BAF30405

(5/5)

SW

IC202

74VHC157

IC702

74VHCT541

IC701

74VHC08

DAC

WM8728

×4

DAC

WM8728

×4

DAC

WM8728

×4

2ch DAC

IC601-IC661

WM8728×4

CN601 for 2nd zone

USB Analog 2ch OUT

DAC

IC681

AK4388ET

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

35

1

DSP Power Block and GND MAP

CN703

GNDD

5V

1.0V

Logic ICs

5V

3.3V DSP

3.3V & 1.2V

GNDD

Flash ROM SDRAM Logic ICs

3.3V

GNDD

DSP OSC Logic ICs

3.3V

GNDD

DIR

5V & 3.3V

GNDD

2ch ADC 2ch DAC x4

5V

COAX

GDAC GDAC GNDD

CN601 CN704 GCH

uGRTN

DGRTN

GNDA(DAG)

V+5A

V+5D

V+5D(USB)

GNDD

REG

GNDA(DAG)

DC-DC

GNDD

GNDA(DAG)

V+5D

DGRTN

GNDD

Zone2 DAC

A5V

A

2 3 4

B

C

D

E

F

36

1

2 3 4

VSX-LX51

5

Conditions for selecting SPDIF or I2S output

pcm fs(kHz) I2S(3 lines)SPDIFLayout Compression DVD-V 48 Compression *.WAV 44

48 dts-CD 44 PCM 44

48

DVD-V

96 2ch LPCM 44

Multi

48 2ch

Multi

88 2ch

Multi

DVD-A

96 2ch

Multi

176

Multi

192 2ch ×

2ch ×

×

2ch ×

×

2ch

Multi - -

--

SACD 2ch

(DSD)

Multi

× × (DSD)

dts HD Master Audio dts HD High Resolution Audio × dts HD LBR

×

Dolby TrueHD

×

Dolby Digital Plus

×

Indistinguishable

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

37

1

1. Causes for noncompletion of HDMI authentication between the source equipment and this unit (the HDMI indicator is unlit or flashes)

[2] HDMI Simple Diagnosis

Replace the HDMI cable.

NG

OK

Replace the Receiver.

Replace the Player.

Replace the HDMI cable.

Repare the Receiver.

Repare the Player.

NG

2. Causes for noncompletion of HDMI authentication between the monitor and this unit (no display or sound from the monitor)

Replace the HDMI cable.

NG

OK

Replace the Receiver.

Replace the TV monitor.

Replace the HDMI cable.

Repare the Receiver.

Repare the TV monitor.

NG

A

2 3 4

B

C

D

E

F

38

1

VSX-LX51

2 3 4

5

[3] Preparations for HDMI diagnosis

Note : Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures

described here are common.

Jig cable

• Extension jig cable (GGD1492) x2

• 11P board to board extension jig cable (GGD1576)

• 19P board to board extension jig cable (GGD1577) x2

• 11P FFC (GGD1578)

Position of Wire Styling (The above angle is different.)

Position of Wire Styling

[Procedures]

1

Remove the Rear Panel.

3

Remove the two screws that fix the HDMI Shield V5S.

2

Remove the screw that fix the MAIN Assy and the Wire Styling of the PCB Binder.

4

Connect the four extension jig cables (two 19P board to board extension jig cable, one 11P board to board extension jig cable and 11P FFC).

5

Raise the MAIN Assy with the HDMI&DVC Assy and DSP&USB Assy attached and place it on the Heat Sink V5S. Fix the lower part of the HDMI&DVC Assy with the PCB Binder.

6

Connect the earth point.

CN110

CN108

CN506

19P board to board extension jig cable (GGD1577)

4

11P board to board extension jig cable (GGD1576)

11P FFC (GGD1578)

4

CN506

CN110

CN4801

CN4802

CN4803

CN107

CN106

11P FFC (GGD1578)

4

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

39

1

7

8

9

8

7

Remove the two Nylon Rivets fixing the HDMI Shield V5S on MAIN Assy.

9

Remove the HDMI&DVC Assy and HDMI Shield V5S together from the MAIN Assy.

8

Remove the two screws from the HDMI Shield V5S.

Pull

A

2 3 4

B

C

D

E

F

40

1

VSX-LX51

2 3 4

5

10

11

13

1212

10

Remove the Nylon Rivet fixing the HDMI&DVC Assy and the HDMI Shield V5S.

11

Remove the HDMI&DVC Assy while holding the Locking Card Spacer with a Cutting Pliers. * Caution is required not to lose the Radiation Sheet between IC1301 and the HDMI Shield V5S.

12

HDMI&DVC Assy MAIN Assy CN1001 - CN101 CN1002 - CN102 Connect each combination above with an extension jig cable (GGD1492).

13

Connect one of the HDMI connectors and a chassis (connect GND).

To MAIN Assy

CN102

GGD1492

To MAIN Assy

CN101

Connect to a chassis.

GGD1492

Cutting Pliers

Locking Card Spacer (for fixing the Assy)

11

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

41

1

Step 2-1: Power supply, CLK

Are the

connectors

securely inserted?

Insert the connectors securely.

No

Ye s

C1001

R1031

Is the voltage

11 V?

Step 2-2: Reset

No

Unreg INPUT

1.8 V

Ye s

Is the voltage

1.8 V?

No

Ye s

IC501 (Pin 13)

Is oscillation

of 15.7 MHz?

No

XOUT

Ye s

CN501 (Pin 12)

Is the voltage

"H" (3.3 V)?

No

HDRST

Check the parts and patterns in the path.

Ye s

No

R1008

3.3 V

Is the voltage

3.3 V?

No

Ye s

V+3R3_1

R1009

3.3 V

Is the voltage

3.3 V?

No

Ye s

V+3R3_2

V+1R8H

HDMI (HDMI input) diagnosis : To Step 3-1

Scaler diagnosis : To Step 5-1

Video converter (Analog input) diagnosis : To Step 4-1

Scaler diagnosis : To Step 5-1

CN1001, CN1002

Check the MAIN Assy or DC/DC ASSY.

Check the MAIN Assy.

• The parts marked like in the following chart are located in "HDMI & DVC Assy Check Points".

Step 1: Connections

CN1001, CN1002

Common section

[4] HDMI Troubleshooting (VSX-LX51)

A1

Check the soldering of IC1001 and the peripheries of IC1001. If soldering has not been done correctly, replace IC1001.

C1073

5 V

Is the voltage

5 V?

No

Ye s

Check the soldering of IC1071 and the peripheries of IC1071. If soldering has not been done correctly, replace IC1071.

Check the soldering of X501 or IC501. If soldering has not been done correctly, replace X501 or IC501.

A1

C

A2

B1

B2

A

2 3 4

B

C

D

E

F

42

1

VSX-LX51

2 3 4

Step 3-1: Power supply, CLK

C1056

Is the voltage

5 V?

No

5 V(HDMI OUT)

Step 3-2 : Reset

IC501 (Pin 22)

RXRST

Ye s

Is the voltage

4.4 V?

No

Check the D1152.

Replace D1152.

V+5HD

IC1254 (Pin 16)

5 V(BD IN)

IC1252 (Pin 16)

5V(HDMI IN1)

IC151 (Pin 9)

V+5R3

IC1204 (Pin 16)

5V(HDMI IN2)

Ye s

Is the voltage

4.4 V?

No

Check the D1151.

Replace D1151.

Ye s

Is the voltage

4.4 V?

No

Check the D1102.

Replace D1102.

Ye s

No

Replace IC501 or IC502.

IC1151 (Pin 48)

Is the voltage

3.3 V?

(BD or HDMI1

is selected)

No

3.3 V(Cable EQ 2)

No

Check the L1151,Q1153 and the peripheries.

Replace L1151,Q1153 or the peripheries.

Check the parts and patterns in the path.

No

IC501 (Pin 25)

TXRST

Ye s

X101

X'TAL(HDMI Rx)

No

Check the soldering of IC101. Check the peripheries of X101.

Replace.

Is oscillation

of 27 MHz?

No

Is the voltage

"H" (3.3 V)?

HDMI section

Check the soldering of IC1051 and the peripheries of IC1051. If soldering has not been done correctly, replace IC1051.

No

Replace IC501 or IC502.

Ye s

Check the parts and patterns in the path.

No

Is the voltage

"H" (3.3 V)?

A

Ye s

IC151 (Pin 5)

V+5R1

G1

C

D1

D2

D3

E

F

Is the voltage

5 V?

No

Step 3-3: Source 5V

* When connected the source equipment to BD IN.

G1

IC151 (Pin 12)

V+5R2

G1

Is the voltage

5 V?

Ye s

No

Replace JA1152.

Check the JA1152.

No

* When connected the source equipment to IN1.

* When connected the source equipment to IN2.

Is the voltage

5 V?

Ye s

R109

R1PWR5V

G2

No

Replace JA1151.

No

Replace JA1102.

Check the JA1151.

Check the JA1102.

No

Ye s

Is the voltage

"H" (3.3 V)?

No

* When connected the source equipment to BD IN/IN1.

No

Replace IC151, Q152 or R156.

Check the parts and patterns in the path.

5

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

43

1

A

JA1151 (Pin 19)

HPD(HDMI1)

H2

Is the voltage

"H" (5 V)?

Ye s

Check the patterns in the path. Check the Q1151 and R1151.

No

Replace Q1151 or R1151.

Check the patterns in the path. Check the Q1102 and R1102.

No

Replace Q1102 or R1102.

IC501 (Pin 93)

HPDET1

* When connected the source equipment to IN2.

C

Is the voltage

"L" (0 V)?

Ye s

No

Replace IC501.

Check the patterns in the path.

JA1102 (Pin 19)

HPD(HDMI2)

H3

Is the voltage

"H" (5 V)?

Ye s

No

Check the patterns in the path. Check the D301 and R313.

No

Replace D301 or R313.

Check the patterns in the path. Check the JA301.

No

Replace JA301.

JA301 (Pin 18)

HPD(HDMI OUT)

H4

IIs the voltage

"H" (5 V)?

Ye s

No

IC301 (Pin 51)

HPD(HDMI Tx)

H5

Is the voltage

"H" (5 V)?

No

Step 3-4: Hot Plug Detect

IC501 (Pin 34)

HPDET3

* When connected the source equipment to BD IN.

C

Is the voltage

"L" (0 V)?

Ye s

JA1152 (Pin 19)

HPD(BD)

H1

Is the voltage

"H" (5 V)?

Check the patterns in the path. Check the Q1152 and R1152.

Ye s

* When connected the source equipment to IN1.

No

Replace IC501.

No

Replace Q1152 or R1152.

Check the patterns in the path.

No

IC501 (Pin 91)

HPDET2

C

Is the voltage

"L" (0 V)?

Ye s

No

Replace IC501.

Check the patterns in the path.

No

Ye s

Is the voltage

"H" (3.3 V)?

R111

R0PWR5V

G3

* When connected the source equipment to IN2.

No

Replace IC151, Q151 or R155.

Check the parts and patterns in the path.

To Step 4-1

A

2 3 4

B

C

D

E

F

44

1

VSX-LX51

2 3 4

Step 4-1: Power supply

Step 4-2: VIDEO INPUT

Is the voltage

1.8V?

No

Check the patterns in the path. Check the L403.

No

Replace L403.

3.3V(VIDEO DEC)

Is the voltage

3.3V?

No

Check the patterns in the path. Check the L401.

No

Replace L401.

Is the voltage

3.3V?

No

Check the patterns in the path. Check the L404.

No

Replace L404.

3.3V(IC402)

I3

I4

I5

I6

I7

Is the voltage

3.3V?

No

Check the patterns in the path. Check the L405.

No

Replace L405.

Is the voltage

3.3V?

No

Check the patterns in the path. Check the L406.

No

Replace L406.

Is the voltage

3.3V?

No

Check the patterns in the path. Check the L601.

No

Replace L601.

Is the voltage

3.3V?

No

Check the patterns in the path. Check the L602.

No

Replace L602.

Ye s

Is the voltage

1.8V?

No

Check the patterns in the path. Check the L402.

No

Replace L402.

CN102 (Pin 24)

VCV IN

C401

Is there a

composite

signal?

No

Diagnose the MAIN Assy.

Ye s

CN102 (Pin 20)

VCY IN

Ye s

C434

3.3V(VIDEO DEC)

Ye s

IC402 (Pin 8)

3.3V(VIDEO DEC)

Ye s

C419

3.3V(VIDEO ENC)

Ye s

C601

3.3V(VIDEO ENC)

Ye s

C611

1.8V(VIDEO DEC)

Ye s

1.8V(VIDEO DEC)

C417

C402

Is there a

Y signal?

No

Ye s

CN102 (Pin 18)

VCC IN

Is there a

C signal?

No

Ye s

CN102 (Pin 12)

VCCY IN

Is there a

Y signal?

No

Ye s

CN102 (Pin 10)

VCCb IN

Is there a Pb signal?

No

Ye s

CN102 (Pin 8)

VCCr IN

Is there a Pr signal?

No

Ye s

B

Video converter section

I1

I8

I2

5

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

45

1

Step 4-4: I2C

IC501 (Pin 30)

VCSDA

C

No

Check the parts and patterns in the path(IC501 - IC401,601).

No

Replace IC501, IC401 or IC601.

Ye s

IC501 (Pin 29)

VCSCL

C

No

Check the parts and patterns in the path(IC501 - IC401,601).

No

Replace IC501, IC401 or IC601.

Ye s

Step 4-5: VIDEO CLK, DATA

IC601 (Pin 48)

LLC

K

Is there a

CLK?

No

Check the parts and patterns in the path(IC401 - IC1601).

No

Replace IC401.

Ye s

IC601 (Pins 2-9)

P22-P29

K

Is there a

DATA ?

No

Check the parts and patterns in the path(IC401 - IC601).

No

Replace IC401.

Ye s

B

Ye s

Does

a clock output in

constant period

(0 - 3.3 V)

?

Does

a signal output in

constant period

(0 - 3.3 V)

?

Check the X401 or IC402.

No

Replace X401 or IC402.

IC402 (Pin 7)

XTAL

J

No

Is there a CLK

(28.63636 MHz)

?

Check the parts and patterns in the path(IC601 - CN1002).

No

Step 4-6: VIDEO OUTPUT

IC601 (Pin 35)

DAC A

K

No

Check the IC601.

No

Replace IC601.

Ye s

Q631 (E)

CVBS OUT

L1

No

Ye s

Diagnose the MAIN Assy.

Replace L631, Q631 or the peripheries of L631 or Q631.

Is there a

composite

signal?

Is there a

composite

signal?

Step 4-3: Reset, X'tal

IC501 (Pin 3)

XVCRST

C

Is the voltage

"H"(3.3V)?

No

Check the parts and patterns in the path(IC501 - IC401).

No

Replace IC501.

Ye s

*Only 480i/576i input.

A

2 3 4

B

C

D

E

F

46

1

VSX-LX51

2 3 4

5

Check the parts and patterns in the path(IC601 - CN1002).

No

Ye s

Check the IC601.

No

Replace IC601.

IC601 (Pin 33)

DAC B

K

Is there a

Y signal?

No

Ye s

Q641 (E)

SY OUT

L2

Is there a

Y signal?

No

Check the parts and patterns in the path(IC601 - CN1002).

No

Replace L651, Q651 or the peripheries of L651 or Q651.

Replace L641, Q641 or the peripheries of L641 or Q641.

Ye s

Check the IC601.

No

Replace IC601.

IC601(Pin 29)

DAC C

K

Is there a

C signal?

No

Ye s

Q651 (E)

SC OUT

L3

Is there a

C signal?

No

Check the parts and patterns in the path(IC601 - CN1002).

No

Replace L661,Q661 or the peripheries of L661 or Q661.

Ye s

Check the IC601.

No

Replace IC601.

IC601 (Pin 28)

DAC D

K

Is there a

Y signal?

No

Ye s

Q661 (E)

Y OUT

L4

Is there a

Y signal?

No

Check the parts and patterns in the path(IC601 - CN1002).

Ye s

Check the IC601.

No

Replace IC601.

IC601 (Pin 24)

DAC F

K

Is there a Pr signal?

No

Ye s

Q681 (E)

Pr OUT

L6

Is there a Pr signal?

No

Check the parts and patterns in the path(IC601 - CN1002).

No

Replace L671,Q671 or the peripheries of L671 or Q671.

No

Replace L681,Q681 or the peripheries of L681 or Q681.

Ye s

Check the IC601.

No

Replace IC601.

IC601 (Pin 25)

DAC E

K

Is there a

Pb signal?

No

Ye s

Q671 (E)

Pb OUT

L5

Is there a

Pb signal?

No

Diagnose the MAIN Assy.

6 7 8

A

B

C

D

5

VSX-LX51

6 7 8

E

F

47

A

Step 5-1: Power supply

Is the voltage

3.3V?

No

Check the L1302.

No

Replace L1302.

Check the L1301.

No

Replace L1301.

Is the voltage

1.8V?

No

Check the L1305.

No

Replace L1305.

Is the voltage

1.8V?

No

Check the L1351.

No

Replace L1351.

Is the voltage

3.3V?

No

Ye s

C

Scaler section

IC1301 (Pins 21-28)

P12-19

*Skip at analog 480i/576i input.

O

Is there a

DATA?

No

Ye s

No

Replace IC401.

Check the parts and patterns in the path (IC401 - IC1301).

Step 5-3: INPUT

IC1301 (Pin 4)

LLC

O

C1302

3.3V (Scaler)

Is there a

CLK?

No

Replace IC401.

Check the parts and patterns in the path (IC401 - IC1301).

No

Replace IC401.

Check the parts and patterns in the path (IC401 - IC1301).

No

Ye s

IC1301 (Pins 29,

32-35,38-40)

P22-29

O

Is there a

DATA?

No

Ye s

1.8V (Scaler)

C1301

Ye s

1.8V (Scaler)

C1305

3.3V (SDRAM)

Ye s

C1351

IC1301 (Pin 1)

HS

O

Is there a HSYNC?

No

Ye s

No

Replace IC401.

Check the parts and patterns in the path (IC401 - IC1301).

M1

M2

M3

M4

Check the X1301.

No

Replace X1301 or IC1301.

Step 5-2: X'tal

X1301

X'tal

N

No

Ye s

Is oscillation

of 13.5 MHz?

Ye s

IC1301 (Pin 2)

VS

O

Is there a

VSYNC?

No

Replace IC401.

Check the parts and patterns in the path (IC401 - IC1301).

1

2 3 4

B

C

D

E

F

48

1

2 3 4

VSX-LX51

End

Check the IC1301 and IC1351.

No

Replace IC1301 or IC1351.

VCCK

Is there a

CLK?

No

Step 5-4: OUTPUT

Ye s

C

IC1301 (Pin 125)

Check the IC1301 and IC1351.

No

Replace IC1301 or IC1351.

D16-23

Is there a

DATA ?

No

IC1301 (Pins 148-155)

Check the IC1301 and IC1351.

No

Replace IC1301 or IC1351.

Ye s

TD28-35

Is there a

DATA ?

No

IC1301 (Pins 130-137)

Check the IC1301 and IC1351.

No

Replace IC1301 or IC1351.

HSYNC

Is there a HSYNC?

No

IC1301 (Pin 118)

Check the IC1301 and IC1351.

Replace IC1301 or IC1351.

VSYNC

Is there a VSYNC?

No

Ye s

IC1301(Pin 119)

O

5

6 7 8

A

B

C

D

5

VSX-LX51

6 7 8

E

F

49

1

SIDE A

HDMI & DVC ASSY

HDMI section

I2

I4

I1

A1

B1

B2

A2

I7

I6

I5

O

C

M1

M3

G1

M4

M2

K

Video converter section Common section

HDMI & DVC Assy Check Points

F

I3

D3

D2

F

E

H5

H4

BD IN

OUT

IN1

IN2

H1

H2

H3

D1

J

I8

L1 L6

L5L3

L2 L4

N

V+3R3_2

V+3R3_1

V+1R8H

V+5HD

G2

G3

A

2 3 4

B

C

D

E

F

50

1

2 3 4

VSX-LX51

5

Step 2-1: Power supply, CLK

Insert the connectors securely

No

Ye s

C1001

R1306

Is the voltage

11 V?

Step 2-2: Reset

No

Unreg INPUT

1.8 V

Ye s

Is the voltage

1.8 V?

No

Ye s

IC501 (Pin 13)

Is oscillation

of 15.7 MHz?

No

XOUT

Ye s

IC501 (Pin 12)

Is the voltage

"H" (3.3 V)?

No

HDRST

Check the parts and patterns in the path.

Ye s

No

R1304

3.3 V

Is the voltage

3.3 V?

No

Ye s

V+3R3

R1305

3.3 V

Is the voltage

3.3 V?

No

V+3R3VC

V+1R8

HDMI (HDMI input) diagnosis : To Step 3-1

Video converter (Analog input) diagnosis : To Step 4-1

CN1001, CN1002

Check the MAIN Assy or DC/DC ASSY.

Check the MAIN Assy.

• The parts marked like in the following chart are located in "HDMI Assy Check Points".

Step 1: Connections

CN1001, CN1002

Common section

[5] HDMI Troubleshooting(VSX-1018AH-K, VSX-1018AH-S)

A1

Check the soldering of IC1001 and the peripheries of IC1001. If soldering has not been done correctly, replace IC1001.

R1307

1.8 V

Is the voltage

1.8 V?

No

Ye s

V+1R8VC

Check the soldering of IC1001 and the peripheries of IC1001. If soldering has not been done correctly, replace IC1001.

C1073

5 V

Is the voltage

5 V?

No

Ye s

Check the soldering of IC1071 and the peripheries of IC1071. If soldering has not been done correctly, replace IC1071.

Check the soldering of X501 or IC501. If soldering has not been done correctly, replace X501 or IC501.

Are the

connectors

securely inserted?

A1 A2

B1

B2

C

6 7 8

A

B

C

D

E

5

VSX-LX51

6 7 8

F

51

A

Step 3-1: Power supply, CLK

IC1051 (Pin 3)

Is the voltage

5 V?

No

5 V(HDMI OUT)

Step 3-2 : Reset

IC501 (Pin 22)

RXRST

Ye s

V+5HD

IC1252 (Pin 16)

5 V(BD IN)

R1151

V+5R2

IC1204 (Pin 16)

5V(HDMI IN)

Is the voltage

4.4 V?

No

Check the D1151.

Replace D1151.

Ye s

Is the voltage

4.4 V?

No

Check the D1102.

Replace D1102.

Ye s

No

Replace IC501 or IC502.

Check the parts and patterns in the path.

No

IC501 (Pin 25)

TXRST

Ye s

X101

X'TAL(HDMI Rx)

No

Check the soldering of IC101. Check the peripheries of X101.

Replace.

Is oscillation

of 27 MHz?

No

Is the voltage

"H" (3.3 V)?

HDMI section

Check the soldering of IC1051 and the peripheries of IC1051. If soldering has not been done correctly, replace IC1051.

No

Replace IC501 or IC502.

Ye s

Check the parts and patterns in the path.

No

Is the voltage

"H" (3.3 V)?

A

Step 3-3: Source 5V

* When connected the source equipment to BD IN.

G1

R1104

V+5R1

G2

Is the voltage

5 V?

Ye s

No

Replace JA1152.

Check the JA1152.

No

* When connected the source equipment to HDMI IN.

Is the voltage

5 V?

Ye s

R109

R1PWR5V

G3

No

Replace JA1151.

Check the JA1151.

No

Ye s

Is the voltage

"H" (3.3 V)?

No

* When connected the source equipment to BD IN.

No

Replace Q103 or Q104.

Replace Q101 or Q102.

Check the parts and patterns in the path.

Step 3-4: Hot Plug Detect

IC501 (Pin 34)

HPDET3

* When connected the source equipment to BD IN.

C

Is the voltage

"L" (0 V)?

Ye s

No

Replace IC501.

Check the patterns in the path.

No

Ye s

Is the voltage

"H" (3.3 V)?

R111

R0PWR5V

G4

* When connected the source equipment to HDMI IN.

No

Check the parts and patterns in the path.

D1

D2

F

C

1

2 3 4

B

C

D

E

F

52

VSX-LX51

1

2 3 4

5

A

JA1102 (Pin 19)

HPD(HDMI)

H2

Is the voltage

"H" (5 V)?

Ye s

Check the patterns in the path. Check the Q1102 and R1104.

No

Replace Q1102 or R1104.

Check the patterns in the path. Check the D301 and R313.

No

Replace D301 or R313.

Check the patterns in the path. Check the JA301.

No

Replace JA301.

JA301 (Pin 18)

HPD(HDMI OUT)

H3

IIs the voltage

"H" (5 V)?

No

IC301 (Pin 51)

HPD(HDMI Tx)

H4

Is the voltage

"H" (5 V)?

No

JA1152 (Pin 19)

HPD(BD)

H1

Is the voltage

"H" (5 V)?

Check the patterns in the path. Check the Q1151 and R1151.

Ye s

* When connected the source equipment to HDMI IN.

No

Replace Q1151 or R1151.

IC501 (Pin 91)

HPDET2

C

Is the voltage

"L" (0 V)?

Ye s

No

Replace IC501.

Check the patterns in the path.

To Step 4-1

Step 4-1: Power supply

3.3V(VIDEO DEC)

Is the voltage

3.3V?

No

Check the patterns in the path. Check the L401.

No

Replace L401.

Is the voltage

3.3V?

No

Check the patterns in the path. Check the L404.

No

Replace L404.

3.3V(IC402)

I3

Is the voltage

3.3V?

No

Check the patterns in the path. Check the L405.

No

Replace L405.

Is the voltage

1.8V?

No

Check the patterns in the path. Check the L402.

No

Replace L402.

C401

Ye s

C434

3.3V(VIDEO DEC)

Ye s

IC402 (Pin 8)

Ye s

1.8V(VIDEO DEC)

C402

B

Video converter section

Step 4-2: VIDEO INPUT

Is the voltage

1.8V?

No

Check the patterns in the path. Check the L403.

No

Replace L403.

Ye s

CN102 (Pin 24)

VCV IN

Is there a

composite

signal?

No

Diagnose the MAIN Assy.

Ye s

CN102 (Pin 20)

VCY IN

1.8V(VIDEO DEC)

C415

Is there a

Y signal?

No

Ye s

I1

I2

I4

I5

6 7 8

A

B

C

D

E

VSX-LX51

5

6 7 8

F

53

1

Diagnose the MAIN Assy.

CN102 (Pin 18)

VCC IN

Is there a

C signal?

No

Ye s

CN102 (Pin 12)

VCCY IN

Is there a

Y signal?

No

Ye s

CN102 (Pin 10)

VCCb IN

Is there a

Pb signal?

No

Ye s

CN102 (Pin 8)

VCCr IN

Is there a Pr signal?

No

Ye s

C

B

Ye s

Check the X401 or IC402.

No

Replace X401 or IC402.

IC402 (Pin 7)

XTAL

J

No

Is there a CLK

(28.63636 MHz)

?

Step 4-3: Reset, X'tal

IC501 (Pin 3)

XVCRST

C

Is the voltage

"H"(3.3 V)?

No

Check the parts and patterns in the path(IC501 - IC401).

No

Replace IC501.

Ye s

Step 4-4: I2C

IC501 (Pin 30)

VCSDA

C

No

Check the parts and patterns in the path(IC501 - IC401,601).

No

Replace IC501, IC401 or IC601.

Ye s

IC501 (Pin 29)

VCSCL

C

No

Check the parts and patterns in the path(IC501 - IC401,601).

No

Replace IC501, IC401 or IC601.

Ye s

Step 4-5: VIDEO CLK, DATA

IC501 (Pin 4)

XVCOE

C

Is the voltage

"L"(0 V)?

No

Check the parts and patterns in the path(IC501 - (IC1256 - IC1259)).

No

Replace IC501.

Ye s

IC1259 (Pin 2)

LLC

K

Is there a

CLK?

No

Check the parts and patterns in the path(IC401 - IC1259).

No

Replace IC401.

Ye s

R428

P26-P29

L2

R429

P22-P25

L1

Is there a

DATA?

No

Check the parts and patterns in the path(IC401 - IC1257).

No

Replace IC401.

Is there a

DATA?

No

Check the parts and patterns in the path(IC401 - IC1257).

No

Replace IC401.

Ye s

Does

a clock output in

constant period

(0 - 3.3 V)

?

Does

a signal output in

constant period

(0 - 3.3 V)

?

A

2 3 4

B

C

D

E

F

54

1

VSX-LX51

2 3 4

5

C

R433

P12-P15

L3

Is there a

DATA?

No

Check the parts and patterns in the path(IC401 - IC1258).

No

Replace IC401.

Ye s

* I/P ON or 480p/576p/720p/ 1080i input only

R434

P16-P19

L4

Is there a

DATA?

No

Check the parts and patterns in the path(IC401 - IC1258).

No

Replace IC401.

Ye s

* I/P ON or 480p/576p/720p/ 1080i input only

R402

HS

L5

Does a

HSYNC output in

constant period

?

No

Check the parts and patterns in the path(IC401 - IC1256).

No

Replace IC401.

Ye s

* I/P ON or 480p/576p/720p/ 1080i input only

R405

VS

L6

Does a

VSYNC output in

constant period

?

No

Check the parts and patterns in the path(IC401 - IC1256).

No

Replace IC401.

Ye s

* I/P ON or 480p/576p/720p/ 1080i input only

End

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

55

1

HDMI ASSY

SIDE A

A1A2

B2

B1

H4

I4

C

I2

I1

Video converter sectionCommon section

G

I3

BD IN

OUT

HDMI IN

H3

H1

H2

L6 L5

L4

L3

L2

L1

K

V+1R8

V+3R3

V+1R8VC V+3R3VC

I5

J

F

G2

G3

V+5HD

G4

D2

D1

G1

HDMI section

Video converter section Common section

HDMI Assy Check Points

A

2 3 4

B

C

D

E

F

56

1

2 3 4

VSX-LX51

5

Step 1: Check of power supply

* Turn ON the power of product and check the power supply by USB iPod function.

Connect the CN704.

NoYe s

In sent the

CN704 connector

securely

?

Check the voltage on CN103 side of MAIN Assy.

Ye s

CN704 (Pins 8,9)

CN704 (Pin 10)

Is

the voltage

5 V ?

No

5V input (for DSP&USB)

IC801 (Pins 19,39)

USB u-COM (V3US)

5V input (for USB bus power)

1

2

NoYe s

In sent the

CN704 connector

securely

?

Check the voltage on CN103 side of MAIN Assy.

Ye s

Is

the voltage

5 V ?

No

IC705 (Pin 5)

3.3V regulator output (V3D)

3

Ye s

Is

the voltage

3.3 V ?

No

Ye s

Replace of IC705.

The output and GND maybe short-circuited. Check the peripheral circuit.

No

Check the pattern between Q871 and IC801.

5

Is

the voltage

3.3 V ?

No

IC808 (Pins 1,40)

iPod activation IC (V3UI)

Check the pattern between Q871 and IC808.

6

Is

the voltage

3.3 V ?

No

Ye s

IC851 (Pin 16)

Logic IC (V3UL)

Check the pattern between Q871 and IC851.

7

Is

the voltage

3.3 V ?

No

Ye s

[6] USB/iPod Troubleshooting

Is IC705

abnormally hot

?

Q871 (collector)

Local power supply for 3.3V USB (V+3DU)

4

Ye s

Is

the voltage

3.3 V ?

No

Ye s

Check the voltage Pin 7 (USB POWER) of CN701 (CN702) at 5V.

Check the voltage Pin 4 (USB CTL) of CN701 (CN702) at 5V.

Check the peripheral circuit of Q871 and Q872. Replace of Q871 and Q872.

No

Is base (USB PWR)

of Q872 high?

IC802 (Pin 1)

Power supply is OK

To step 2

USB bus power (V5USB)

8

Ye s

Is

the voltage

5 V ?

No

Ye s

Check the peripheral circuit of IC802, and is not XFALG LOW? Replace of IC802.

No

Is Pin 4

(USBCTRL) of IC802

high?

6 7 8

A

B

C

D

5

VSX-LX51

6 7 8

E

F

57

1

Step 2: Check of oscillation

* Turn ON the power of product and check the power supply by USB iPod function.

* Make a confirmation with USB memory or iPod* connected. * The iPod that can be used for this product is iPod 5G, iPod nano, iPod classic and iPod touch (as of April 1, 2008).

IC801 (Pins 6,7)

X801(CF1/CF2)

9

Check the Pin 8 (USB XRST) of CN701 (CN702).

Note : USBRST3 is set to high during the operation.

Fig. 1

IC801

IC701 (5 V → 3 V)

CN701

(CN702)

USBDAI Pin 44 Pin 11 Pins 12,13 Pin 6

IC801

IC702 (3 V → 5 V)

CN701

(CN702)

USBDAO Pin 45 Pin 2 Pin 18 Pin 5

Check the peripheral circuit of X801. Replace of X801.

Ye sYe s

Is

USBRST3

(Pin 2) high

(3.3V)?

No

Does the

oscillation waveform

at 12MHz

?

No

IC808 (Pins 2,3)

X881(XIN/XOUT)

10

Recheck the power supply (3.3V) of IC808.

Note : X801 oscillates when the power supply of IC808 is turned ON.

Ye s

No

Does the

oscillation waveform

32.768MHz ?

Check of oscillation is OK

To step 3

Step 3: Check of operation of USB u-COM

IC801 (Pins 44,45)

Main u-COM communication (USBDAI, USBDAO)

11

USBDAO and USBDAI should be set to High during the operation. Replace of IC801 or main u-COM.

Ye s

No

Check the power supply voltage of IC801. Check the oscillation of X801. Check the USBRST. Replace of IC801.

Note :

When the usable USB memory or iPod is connected, the waveform shown on right side can be observed in D-/D+.

No

CN801 (Pins 7,8)

D+/D-

12

Ye s

Can the

waveform shown in

Fig be observed

?

IC801 is OK.

To step 4.

Do the USBDAO and USBDA perform communication with

main u-COM?

Fig.

D+

D-

As it is USB2.0 (FS), the P-P value is approximately 3 to 3.5V.

X: 1 μsec/div, Y: 2 V/div

A

2 3 4

B

C

D

E

F

58

VSX-LX51

1

2 3 4

5

Step 4: iPod authentication process

When the USB playback is available and only the iPod cannot be played * Connect the iPod and make a confirmation.

IC808 (Pins 18,19,20,21)

SPI SIMO, SPI SOMI, SPI_UCLK, SPI_nSS (SPI communication with IC801)

13

When the power supply is turned ON or function is switched to USB iPod, check whether the communication waveform can be observed on these lines.

Ye s

No

Check the pattern from IC801.

Ye s

Is the CPRST

(38Pin) reset? After the

reset, is it set to

High (3.3V)

?

No

Replace of IC808 and X881.

Replace of IC808.

Ye s

Does the

X881 oscillate

at 32.576kHz

?

No

Ye s

Operation of IC808 is OK

To step 5

To CPRDY

IC808 (Pin 11)

The CPRDY performs communication once immediately after the iPod is connected (when the authentication is started), and performs the communication again when the authentication operation is completed (approximately 70 seconds later).

CPRDY (Co-Processor Ready Signal)

14

No

Does the

CPRDY operate

?

Do the SPI_SIMO

and SPI_SOMI etc.

perform communication

?

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

59

1

Step 5: Digital audio output switching

With this product, the digital audio signal output route from IC801 (USB host) varies depending the USB reproduction and iPod reproduction. It is controlled and switched by USAW (USB Audio Switch) using the IC851 (logic IC).

IMCK, ISDAT, IBCK, ILRCK (when iPod reproduces)

15

Ye s

No

Meaning and details

IC801

output Pin

Signal

name

USB

playback

- OSCU Master clock (24.576MHz) from IC503 of DSP block is used.

Check each audio output terminal of IC801.

Check the peripheral circuit of IC503.

To diagnosis

flow of DSP

IC801 (Pins 18,26,27,28)

For the output of IC851, each digital audio signal should be output at each reproduction.

Is there

each output?

33,36 MSCK Mass Strage Clock.

31 MSDA Mass Strage Data.

34 MSSS Mass Strage SS.

iPod

playback

18 IMCK iPod Master Clock.

26 ISDAT iPod Serial Data.

27 IBCK iPod Bit Clock.

28 ILRCK iPod LR Clock.

MSDA, MSCK, MSSS (when USB reproduces)

16

Ye s

No

Check each audio output terminal of IC801.

IC801 (Pins 31,33,34)

Is there

each output?

IC503 (Pin 12)

OSCU (24.576 MHz : when USB reproduces)

17

Is there

output of

24.576 MHz ?

No

Ye s

Check the UASW (Pin 2) of CN701 (CN702). Check the pattern between CN701 (CN702) and IC851. Check the MAIN ASSY.

Ye s

IC851 (Pin 1)

UASW (USB Audio Switch)

18

No

When USB reproduces

: High and when iPod

reproduces

: Low?

A

2 3 4

B

C

D

E

F

60

VSX-LX51

1

2 3 4

5

[1] Protection Circuit Process List

DC Detection Circuit

Item Purpose Detection Method Process Warning Indication Remarks

DC detection

To detect amplifier damage (defect status) A process to protect speakers (for protection of connected external devices)

Detects when the DC_PROTECT port becomes "L". (Pin 103 of IC101)

Turns muting on and speaker relay off, then turns off the power after 3 seconds. Then flashes MCACC indicator.

Flashing "AMP ERR" for 3 seconds.

Once detected and turned the power off, input a key never again. If the DC_DET port becomes "H" within 3 seconds, the unit returns to normal condition automatically.

AMP overload

To detect overloading (abnormal status) With low-load driving or a short circuit of the speaker terminals (for protection of the amplifier)

Detects when the OL_DET port becomes "L" (checks by interrupt). (Pin 26 of IC101)

Turns muting on and speaker relay off, and immediately turns off the power. Then flashes PHASE CONTROL indicator.

None

Overheat detection

Self reset type protection feature by temperature-rise of heat sink

Detects when the TEMP2 port becomes "H" . (Pin 24 of IC3004)

Turns muting on and speaker relay off, then turns off the power after 3 seconds.

Flashing "OVERHEAT" for 3 seconds.

If the TEMP2 port becomes "L" within 3 seconds, the unit returns to normal condition automatically.

12V trigger failure detection

To detect the shortcircuit of 12V trigger output (load more than 50mA) (for protection of the amplifier)

Detects when the 12VDET port decoms "H". (Pin 122 of IC101)

Turns 12V trigger output to off.

Flashing "12V TRG ERR"

Continue showing warning. Release the FL indication by switching the INPUT SEL or the turns the power off.

R5744

R5742

Q5742

GAMP

GNDU

Q5741

Q5301

Q5302

R5341

OUTPUT

DC DETECTOR

R ch

C ch

SR ch

SBR ch

SL ch SBL ch

+VL

V+5UM

Normal: High (5V)

DC det: Low (0V)

+DC detection: Q5741 base is "H". –> Collector of Q5741 and Q5742 are "L".

-DC detection: Q5742 emitter is minus to the base. –> Collector of Q5741 and Q5742 are "L".

-VL

R5342

R5441

R5442

R5541

R5542

R5325

R5327

R5326

R5741

R5641

R5642

C5741

R291

C291

D291

D292

UCOM

IC101

103

CN5803

-11

CN4808

-11

CN4803

-11

L ch

R5041

R5042

R5141

R5142

R5241

R5242

CN108

-11

POWER AMP ASSY MAIN ASSY

B

R

INTERFACE ASSY

E

6 7 8

5.2 CIRCUIT DESCRIPTION

A

B

C

D

E

F

VSX-LX51

5

6 7 8

61

1

OL (Over Load) Detection Circuit

Q5731

GAMP

GNDU

Q5041

D5043

D5143

D5243

Q5001

Q5002

R5043

R5732

R5044

OUTPUT

OL DETECTOR

L ch

R ch

C ch

SL ch

SBL ch

SR ch

SBR ch

+VL

V+5UM

Normal: High (5V)

OL det: Low (0V)

-VL

R5025

R5027

R5026

R5045

R5047

R5733

R5736 R5735

D5041D5042

R5046

C5041

NP

C5731

C292

D292D291

UCOM

IC101

26

Normal: Low (0V) OL det: 0.6V

CN5803

-12

CN108

-10

POWER AMP ASSY

MAIN ASSY

B

D5443

D5543

D5343

D5143

CN4808

-12

CN4803

-10

INTERFACE ASSY

E

R292

R

A

2 3 4

B

C

D

E

F

62

VSX-LX51

1

2 3 4

5

[2] Protection Circuit Process List (XPROTECT)

XPROTECT Circuit

Item Purpose Detection Method Process Warning Indication Remarks

XPROTECT

AMP power supply circuit and Transformer short circuit detect. (defect status)

Observe CN5701 pin3 or pin5 voltage, VL+ and VL-.

Detects when the XPROTECT port becomes "L". (Pin 102 of IC101)

Turns muting on and speaker relay off, and immediately turns off the power. Then flashes DIGITAL PRECISION PROCESSING indicator.

None

Once detected and turned the power off, input a key never again.

INTERFACE ASSY

E

POWER AMP ASSY

R

MAIN ASSY

B

UCOM IC101

102

R5723

47k

R5725

47k

R5726

47k

R5727

220k

R5728

220k

D5721

1SS352

D5722

1SS352

10u/63

C5723

TS

GAMP

D5782

UDZS7R5(B)

DTC124EUA

Q5781

DTC124EUA

Q5782

DTA124EUA

Q5783

DTA124EUA

Q5784

D5783

1SS352

D5784

1SS352

D5781

UDZS5R1(B)

C5781

0.01u/50

GNDU

R5781

1k

V+5UM

Short circuit detect: AMP power supply circuit (VL)

Short circuit detect: Transformer

R5782

10k

R5783

10k

VL+

VL-

GNDU

V+5UM

R5784

47k

DTC124EUA

Q5785

GNDU

R5785

100k

R5724

47k

C5782

1u/10

CN5701

-3

CN5803

-9

CN4808

-9

CN4803

-15

CN108

-15

CN5701

-5

GNDU

R422

1M

C421

0.047u/25

R421

47k

V+5US

6 7 8

A

B

C

D

5

VSX-LX51

6 7 8

E

F

63

1

[1] Version indication

[Purpose]

[Basic operations]

FL Display

POWER OFF

Mx.xxx : Main microcomputer Ex.xxx : EVENT microcomputer

Hx.xxx : HDMI microcomputer

fx.xxx : DSP Firm version

5

Main microcomputer and EVENT microcomputer

HDMI microcomputer

DSP firmware

model/destination

Description of Version Indications

Duration (sec.)

Devices that can be considered generally normal, with the corresponding indications

The versions for various microcomputers and DSP firmware are displayed.

1. If the version indication becomes "**," a failure in communications between the corresponding microcomputers or a failure in the corresponding microcomputers is likely.

2. In this submode, the user settings will not be cleared.

[How to enter/exit]

This mode is automatically exited when the indications of all versions have finished.

to enter this mode.

During Standby mode, simultaneously press and hold the “STANDBY/ON” and “MULTI CH IN” keys for 5 seconds

[Notes]

Normal display

M0.501 E0.501

H0.503

f0.515

LX51/HY

2 3 4

6. SERVICE MODE

6.1 TEST MODE

A

B

C

D

E

F

64

1

2 3 4

VSX-LX51

5

[2] Detected protection history

[Purpose]

[Basic operations]

FL Display

POWER OFF

Number of detections of cord

disconnection (DC and OL DET line) (simultaneous detections of DC and OVERLOAD)

Number of detections of fan abnormalities

Number of overload detections

Number of DC detections

Number of detections of abnormal

temperature

3

Normal display

(*) ”FAN : 000” is

always displayed. (This model has no FAN)

Description of Indications

Duration (sec.)

The numbers of detections for various protection processes are displayed.

When the keys are pressed, the numbers of DC detections, overload detections, detections of connectors disconnection inside unit (It is detected by both DC and OVERLOAD detections.), detections of fan abnormalities, and detections of abnormal temperature are displayed for 3 seconds each, in that order. The maximum value of each detections is 255.

[How to enter/exit]

During Standby mode, simultaneously press and hold “STANDBY/ON” and “BD” keys for 5 seconds to enter this mode.

[Description]

3

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

65

1

[3] Error indications when an abnormality in the amplifier system is detected

[Purpose]

[Error Messages]

FL Display

When a thermal shutdown (abnormal temperature), etc. is detected

When AMP DC is detected Flashes 3 times.

Flashes 3 times.

Status

Duration (sec.)

An error message is displayed when an abnormality in the amplifier system is detected.

After a failure is detected, the shutdown process starts, then the power will be off. The power can be turned on again in Normal mode.

AMP ERROR : After a failure in the amplifier block or high DC output is detected, the shutdown process starts, then the power will be shut off. Then the MCACC LED will flash. The power cannot be turned on again. If you wish to turn on the unit after a shutdown activated by DC detection, enter DC detection cancellation mode, by proceeding with the steps described in "How to enter release mode" below.

AMP OVERHEAT : The temperature of the amplifier is abnormally high.

12V TRG ERR : The 12V trigger output is short-circuited.

HDMI NG : There is no communication response from the HDMI u-com.

HDCP ERR : The monitor is non-HDCP type or the monitor is standby state.

NOT SUPPORT : The output resolution is not correspond to the monitor at analog. –>HDMI(scaler exist)

USB ERROR1 : The connected USB device is overload

[Description]

[How to enter release mode]

Press and hold "STANDBY/ON" and "AUTO SURR" keys

on the front panel simultaneously for 2 seconds in standby mode.

When the 12V trigger circuit is short-circuited

Flashes

When an error is detected during communication with the HDMI microcomputer

Flashes

When an HDCP ERR is detected. Flashes 5 seconds.

When the monitor outputs a non

supported video format.

When the overload USB device(over 500mA) is connected

Flashes

A

2 3 4

B

C

D

E

F

66

1

2 3 4

VSX-LX51

5

1. Before the Power Amp Assy is removed

Note 1: Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures

described here are common. Note 2: For performing the diagnosis shown below, the following jigs for service is required:

• 11P board to board extension jig cable (GGD1576)

• 19P board to board extension jig cable (GGD1577x2)

• 11P FFC (GGD1578)

2

Discharge C5721 and C5722 on the POWER AMP Assy by discharging Pin 1 and Pin 4 of D4701on the DIODE Assy to the earth point of POWER AMP Assy. Note: For discharging, use a load of 100Ω, 3W or more, to protect the IC protectors. Do NOT discharge instantly by short-circuiting.

3

Check that the voltage between the electrodes of each C5721 and C5722 is 1V or less.

1

Unplug the AC Power Cord.

Before the Power Amp Assy is removed, discharge C5721 and C5722 on the POWER AMP Assy, as indicated below. If you don't, the protectors (P5001 and P5002) on the POWER AMP Assy may be open, and DC voltage may be generated at the power amplifier output, which will result in "AMP ERR." The discharge operation indicated below is performed when the MAIN Assy and the AUDIO IN Assy are removed temporarily to remove the screws of the Regulators attached to the Chassis for a diagnosis of the POWER AMP Assy B side.

[Procedure]

Earth point

D4701/DIODE Assy

Enlarged view of the GND.

Enlarged view of the D4701 terminal discharge point.

Diode lead Caution shall be exercised when touching the lead with a short-circuit jig so as not to touch the lead and the chassis simultaneously.

C5721C5722

+

-

6 7 8

7. DISASSEMBLY

A

B

C

D

E

5

6 7 8

VSX-LX51

F

67

1

Note : As mentioned below, detach the Rear Panel, re-fasten the screws at the corresponding points, and connect the Chassis to the ground.

Points to be connected to the Chassis. Either one.

Earth point

Points to be connected to the Chassis.

A

2 3 4

B

C

D

E

F

68

VSX-LX51

1

2 3 4

POWER AMP Assy

1

POWER AMP Assy

DIODE Assy

POWER AMP Assy

2. Diagnosis

9

Remove the Locking Card Spacer from the Chassis using Cutting Pliers.

10

Remove the four screws that fix the Heat Sink V5S.

11

Cut the Binder.

12

Remove the four screws that fix the Power Transformer. Place a high insulating material under the Power Transformer to raise it.

1

Remove the Rear Panel.

2

Remove the MAIN Assy (equipped with HDMI&DVC Assy and DSP&USB Assy) and the AUDIO IN Assy from the INTERFACE Assy.

3

Discharge C5721 and C5722. (See the "discharge procedures.")

13

Raise the block and diagnose the POWER AMP Assy B side.

7

8

Reassembling the Rear Panel. (Keep a space for earth and about six to seven screws fixing places. Do not attach screws with the Chassis.)

4

Remove the two screws that fix the Regulators attached to the Chassis.

5

Remove the two Push Rivets and the two screws that fix the POWER AMP Assy.

6

Remove the two screws that fix the diode of the DIODE Assy.

Reassembling the MAIN Assy (equipped with HDMI&DVC Assy and DSP&USB Assy) and the AUDIO IN Assy to the INTERFACE Assy.

Push Rivet

Regulator

DIODE Assy

Tape

Cutting Pliers

Locking Card Spacer (for fixing the Assy)

9

Caution:

Fix the DIODE Assy to the Rear Panel with Tape so that it will not come closer to other Assy.

Diagnosis

5

6

5

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

69

1

MAIN Assy, AUDIO IN Assy, INTERFACE Assy

2

1

Remove the Rear Panel.

2

Remove the screw that fix the MAIN Assy and the Wire Styling of the PCB Binder.

3

Remove the two screws that fix the HDMI Shield V5S.

5

Raise the MAIN Assy with the HDMI&DVC Assy and DSP&USB Assy attached and place it on the Heat Sink V5S. Fix the lower part of the HDMI&DVC Assy with the PCB Binder.

4

Connect the four extension jig cables (two 19P board to board extension jig cable, one 11P board to board extension jig cable and 11P FFC).

6

Connect the earth point.

Position of Wire Styling (The above angle is different.)

Position of Wire Styling

7

Diagnose the MAIN Assy A side or the AUDIO IN Assy B side, and the INTERFACE Assy.

Diagnosis

CN110

CN108

CN506

19P board to board extension jig cable (GGD1577)

4

11P board to board extension jig cable (GGD1576)

11P FFC (GGD1578)

4

CN506

CN110

CN4801

CN4802

CN4803

CN107

CN106

11P FFC (GGD1578)

4

A

2 3 4

B

C

D

E

F

70

1

2 3 4

VSX-LX51

5

Pin-out diagram of RS-232C cross cable

• RS-232C cable (9-pin to 9-pin, cross)

• PC with a serial port

• Program for updating (ufu.exe: ver. 1.08)

• Firmware ("mot" extension)

[Connections Except HDMI u-com for VSX-1018AH]

Connect as indicated in the figure right:

RS-232C

cross cable

(9-pin to 9-pin)

PC This unit

for VSX-1018AH

COAXIAL

ASSIGNABLE

21 -

HDMI

OUT

1

IN

(DVD)

2

IN

(CD)

[Connections for VSX-1018AH]

[Necessary Tools]

[Purpose]

Refer to this section when updating the firmware of each microcomputer is required by the service information, etc.

[1] MAIN, HDMI and EVENT microcomputer

PC GGF1348

This unit

RS-232C

Straight cable

FFC

(VDA1681)

Rear side

Slit for an HDMI for downloading

FFC CONTACT SIDE : RIGHTWARD

• RS-232C straight cable (9pin female <-> 25pin male)

• RS-232C Interface jig : GGF1348

• 7 pin FFC : VDA1681

(HDMI microcomputer)

(EVENT microcomputer)

(MAIN microcomputer)

(HDMI microcomputer)

Connect as shown in the figure below.

6 7 8

8. EACH SETTING AND ADJUSTMENT

8.1 HOW TO UPDATE FIRMWARE

A

B

C

D

E

5

VSX-LX51

6 7 8

F

71

1

[Note]

Do NOT disconnect the AC power cords of this unit nor the PC.

Check that "Full" is selected in Mode Select.

Select the communication speed.

• Base Speed: 19200

• Data Send Speed: 57600

1. Set the main volume level to "---dB" then turn off the unit (Standby mode).

2. Connect the PC and the unit as shown in "Connections".

3. MAIN ucom: Simultaneously press and hold the "STANDOBY/ON" and "iPod USB" keys for about 5seconds. The unit is turned on and "MAIN DOWNLOAD" is displayed.

HDMI ucom:

Simultaneously press and hold the "STANDOBY/ON" and "CD-R" keys for about 5seconds. The unit is turned on and "HDMI DOWNLOAD" is displayed.

EVENT ucom:

Simultaneously press and hold the "STANDOBY/ON" and "VIDEO" keys for about 5seconds. The unit is turned on and "EVENT DOWNLOAD" is displayed.

4. Double-click the "UFU.exe".

5. Check that "Full" is selected in Mode Select.

6. Select the firmware file (.mot file) for updating each ucom. Note: Do NOT download the firmware file for other ucom.

7. Select the communication speed.

• Basic speed: 19200

• Data transfer speed: 57600

8. Click the "START" button.

9. "Completed" is displayed in the "UFU.exe" window.

10. Disconnect then reconnect the AC power cord of the unit. If the unit is not reset, retry from step2.

11. Check the version. Please refer to 6.1 TEST MODE "Version indication" and check that the version has been changed to a new one.

[Procedures]

A

2 3 4

B

C

D

E

F

72

1

2 3 4

VSX-LX51

5

1. Check the version of the DSP flash ROM (1st DSP) and the DSP ucom. Please refer to 6.1 TEST MODE "Version indication".

2. Connect a CD or DVD player (1) Connect the CD or DVD player for updating to any digital input jack of this unit. (2) Select the input source to the connected source by pressing input source key. (During the default setting. COAX-1 belongs to DVD, OPT-1 belongs to TV SAT.)

[Procedures]

[Connections]

Connect as shown in the figure below.

[Preparations]

Burn the DSP flash ROM firmware (.wav file) to a CD-R disc using commercially available burning software. It is necessary to select the writing format to "For music player", not "For PC data".

Note:

Depending on a burning software, data on a CD-R may not be worked for updating the DSP flash ROM. If the HDMI indicator does not flash when playing back a update disc, the disc is not able to use for updating. Burn the DSP flash ROM firmware to a CD-R disc, using other burning software.

• DVD player

• Coaxial cable or Optical cable

• Update disc (CD-R disc)

Note:

Please use DVD player based on MTK system (DV-270, 370, 373, 575K, 280, 380, 383, etc.),Mitsubishi system (DV-59AVi, 868AVi, S969AVi, 668AVi, etc.) and Fujitsu system (DV-343, 444, 545, etc.).

DO NOT use DVD player based on ST system (DV-353, 454, 250, 400, 555K, 260, 363, 464, 466, 563, etc.). The factory confirmed that DVD players based on ST system cannot send the correct data to the receiver. You can check the base system of our DVD players on the firmware version list at PSN web (Niis).

[Necessary Tools]

[Purpose]

[Note]

• Do NOT disconnect the AC power cords of this unit and the CD/DVD player during a updating.

• "OK" is appeared on the FL display when updating is completed.

If the "OK" is not appeared, updating has not been completed correctly. Be sure to perform the updating procedures again.

Refer to this section when updating the DSP flash ROM firmware is required by the service information, etc. It is able to update the DSP flash ROM firmware by playing back a CD-R which is recorded a DSP firmware (.wav file) via digital connection.

This unit

CD or DVD player

Digital connection

[2] DSP FLASH ROM

3. Confirm that the digital input signal is locked on the AV receiver. (1) Play back the update disc on the CD/DVD player. (2) Set the signal select setting of the AV receiver to the "Auto" then confirm that the Signal Select indicator is Digital.

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

73

1

4. Enter the DSP flash ROM updating mode. (1) Skip to the beginning (time:0:00) of the first track of the update disc and set to Pause. (2) Set the main volume level of the AV receiver to "---dB" then turn off the unit (Standby mode). (3) Simultaneously press and hold the "STANDOBY/ON" and

"FM/AM" keys for about 5seconds.

The unit is turned on and "DSPF DOWNLOAD" is displayed.

5. Play back the first track of the update disc. (1) Release Pause mode of the CD/DVD player and start to play back the DSP update program stream. (2) After 5-10 seconds, the HDMI indicator starts flashing. Be sure to check it. Flashing of the HDMI indicator means that the unit is receiving a correct streem and the updating is in progress. Note: Do NOT turn off the unit while the HDMI indicator is flashing. If the unit is turned off, be sure to go back to Step 4. (As the Flash ROM goes into unusual status if the power is off during updating, the unit may not start properly.) Even in such a case, you can restore the unit by performing Steps 4 to 7.

6. Wait until "OK" is appeared on the FL display. (1) It takes about 2 minutes for updating. (2) After confirming the "OK", stop or pause the CD/DVD player and wait for 5 seconds then turn off the power of the AV receiver (Standby mode).

7. Check the version of the DSP flash ROM (1st DSP). Please refer to 6.1 TEST MODE "Version indication" and check that the version has been changed to a new one.

[Procedures]

[3] Troubleshooting of DSP FLASH ROM UPDATE

Symptoms Items to be checked

The HDMI indicator does not start flashing, and 10 seconds or more has elapsed after a updating stream is input.

Is DSP writing mode entered? (Simultaneously press and hold the "STANDOBY/ON" and "FM/AM" keys.)

Is DIR locked? −> You can check this on the Signal Select indicator if the input is set to Auto and Digital. If DIR is not locked, check the input function and digital connections between the player and this unit.

Is the stream (Track No., etc.) being played back correct?

Are compressed audio signals, such as WMA, being input when or after writing mode is entered ? –> As soon as the compressed audio signals are input, writing mode is exited. It is recommended that playback be paused at the beginning of the track of a updating stream then writing mode is entered by simultaneous pressing of the keys. Release Pause mode after entering of writing mode is confirmed.

Writing mode is not entered upon simultaneous pressing of the "STANDOBY/ON" and "FM/AM" keys.

Is the volume control of the receiver set to - dB? If not, set it to - dB (- - -).

Reset the receiver then enter writing mode. Note: All the user data stored in the receiver are cleared when the receiver is reset.

"OK" is not displayed.

Is the track played back from the beginning to the end? –> With the receiver in writing mode, be sure to play back the stream track twice.

If an error is generated because any scratches on the disc, "OK" is not displayed. –> In such a case, play back the same stream stored on another track as backup.

A

2 3 4

B

C

D

E

F

74

1

2 3 4

VSX-LX51

5

6 7 8

A

B

C

D

E

F

VSX-LX51

5

6 7 8

75

1

NOTES: - Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.

-

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

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

-

Screws adjacent to b 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.)

VSX-LX51/HYSXJ5 ONLY

2 3 4

9. EXPLODED VIEWS AND PARTS LIST

A

9.1 PACKING SECTION

B

C

D

E

F

76

1

2 3 4

VSX-LX51

5

6 7 8

PACKING SECTION PARTS LIST

Mark

Mark No. Description Part No.

1 LABEL (WEEE) ARW7322 2 FM Wire Antenna ADH7030

NSP 3 Polyethylene Bag AHG7132

4Setup Microphone APM7008

(for Auto MCACC setup)

5 Operating Instructions (English) See Contrast table(2) 6 Operating Instructions (French) See Contrast table(2) 7 Operating Instructions (German)See Contrast table(2) 8 Operating Instructions (Italian) See Contrast table(2) 9 Operating Instructions (Spanish)See Contrast table(2)

10 Operating Instructions (Dutch) See Contrast table(2) 11 Operating Instructions (Russian)See Contrast table(2) 12 Caution Sheet (Spanish/English)ARM7083

No. Description Part No.

13 AM Loop Antenna ATB7013 14 Remote Control Unit See Contrast table(2)

NSP 15 Dry Cell Battery AA/LR6 VEM1031

16 Protection Sheet LX See Contrast table(2) 17 Front Pad V5SEL AHA7472 18 Rear Pad V5SEL AHA7473 19 **** ****

20 Battery Cover VZN1025

NSP 21 Warranty Card EU ARY7111

22 Packing Case See Contrast table(2) 23 Packing Sheet RHC1023

(2) CONTRAST TABLE

VSX-LX51/HYSXJ5, VSX-1018AH-K/YSXJ5 and VSX-1018AH-S/YSXJ5 are constructed the same except for the following:

Mark No. Symbol and Description

5 Operating Instructions (English) ARB7397 ARB7401 ARB7401 6 Operating Instructions (French) ARC7814 ARC7823 ARC7823 7 Operating Instructions (German) ARC7815 ARC7824 ARC7824 8 Operating Instructions (Italian) ARC7816 ARC7825 ARC7825 9 Operating Instructions (Spanish) ARC7817 ARC7826 ARC7826

VSX-LX51/

HYSXJ5

VSX-1018AH-K/

YSXJ5

VSX-1018AH-S/

YSXJ5

A

B

C

10 Operating Instructions (Dutch) ARC7818 ARC7827 ARC7827 11 Operating Instructions (Russian) ARC7819 ARC7828 ARC7828 14 Remote Contro Unit AXD7518 AXD7526 AXD7527 16 Protection Sheet LX AEH7030 Not used Not used 22 Packing Case AHD8576 AHD8582 AHD8583

D

E

F

VSX-LX51

5

6 7 8

77

1

CONTACT SIDE

NON-CONTACT

SIDE

VSX-1018AH-K/YSXJ5, VSX-1018AH-S/YSXJ5 ONLY

INTER FACE

CN4809

DSP & USB

CN801

POWER AMP

JH5801

Refer to "9.3 CHASSIS SECTION".

Refer to "9.5 FRONT PANEL SECTION".

A

9.2 EXTERIOR SECTION

A

B

2 3 4

C

D

E

F

78

1

2 3 4

VSX-LX51

5

EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

1FM/AM Tuner Unit AXX7248 2 11P FFC/30V (J54) ADD7639 3 Cord Stopper CM-22B

> 4AC Power Cord VDG1080

5 Rear Panel See Contrast table(2)

6 Bonnet See Contrast table(2) 7 SP Sheet V5S AEC7605 8 Top Cushion AED7121 9Insulator See Contrast table(2)

10 Cushion Circle 14B AED7081

6 7 8

Mark

No. Description Part No.

NSP 11 LABEL VRW1629

12 Screw BBT30P100FCC 13 Screw BBZ30P080FCC 14 Screw BBZ30P080FTB 15 Screw See Contrast table(2)

16 Screw PMZ30P060FTB 17 Screw 2.85X7 ABA7078 18 Screw IBP30P090FCC

A

(2) CONTRAST TABLE

VSX-LX51/HYSXJ5, VSX-1018AH-K/YSXJ5 and VSX-1018AH-S/YSXJ5 are constructed the same except for the following:

Mark No. Symbol and Description

5 Rear Panel ANC8514 ANC8520 ANC8521 6 Bonnet AZN8034 AZN8034 AZN8035 9Insulator DXA1904 PNW2766 PNW2766

15 Screw BCZ40P060FTB BCZ40P060FTB BCZ40P060FNI

VSX-LX51/

HYSXJ5

VSX-1018AH-K/

YSXJ5

VSX-1018AH-S/

YSXJ5

B

C

D

E

F

VSX-LX51

5

6 7 8

79

1

CONTACT SIDE

NON-CONTACT

SIDE

VSX-1018AH-K/YSXJ5, VSX-1018AH-S/YSXJ5

ONLY

Refer to "9.4 POWER AMP SECTION".

FRONT IN

CN3601

FRONT IN

CN3602

DISPLAY

CN3003

HEADPHONE

CN3451

FM/AM Tuner Unit CN1

Refer to "9.5 FRONT PANEL SECTION" (∗b)

Refer to "9.5 FRONT PA NEL SECTION" (∗c)

A a

B a

Q a

R a

A b

B b

R b

Q b

A b

A a

B a

B b

C

D

E

G

F

H

I

J

K

L

S

M

N

O

P

J

K

I

C

D

E

G

H

L

M

N

O

R a

R b

A

B

E

T

U

V

H

P

C

F

G

S

9.3 CHASSIS SECTION

A

2 3 4

B

C

D

E

F

80

1

2 3 4

VSX-LX51

5

6 7 8

CHASSIS SECTION PARTS LIST

Mark No. Description Part No.

1 DIODE Assy AWX8985 2 REGULATOR Assy AWX8986 3 DC/DC Assy AWX8988 4 INTERFACE Assy AWX8990 5 BINDER Assy AWX9120

6 PRIMARY Assy AWX9124 NSP 7 AUDIO IN Assy AWK8051 NSP 8 MAIN Assy See Contrast table(2)

9 HDMI Assy&DVC See Contrast table(2)

HDMI Assy See Contrast table(2)

10 DSP Assy AWX9176

> 11 Power Transformer (T1501) ATS7419 > 12 Fuse (T2.5A) (FU8,FU9) AEK1058 > 13 Fuse (T3.15A) (FU5) AEK1059 > 14 Fuse (T4A) (FU4) AEK1060

> 15 Fuse (T5A) (FU1) AEK1061 > 16 Fuse (T800MA) (FU6,FU7) AEK7072

17 33P FFC/60V (J51) ADD7635 18 11P FFC/60V (J52) ADD7636 19 11P FFC/60V (J54) ADD7637

20 23P FFC/60V (J55) ADD7638 21 17P FFC/60V (J57) ADD7640 22 19P FFC/60V (J58) ADD7641 23 9P Housing Assy ADX7619

NSP 24 Chassis V5S ANA7209

NSP 25 Panel Stay V5SEL AND7086

Mark

No. Description Part No.

26 Primary Angle 56 ANG7526

NSP 27 Transistor Holder ANG7543

28 DSP Shield V5SEL ANG7614 29 HDMI Shield V5S ANG7616

30 PCB Stay V5S ANG7617

NSP 31 Trans Frame V5S ANG7629

32 Primary Barrier AEC7569 33 Main Barrier V5S AEC7602 34 PS Barrier V5S AEC7611

35 Shield Case AMR7526 36 Radiation Sheet See Contrast table(2) 37 Push Rivet AEC7370 38 Nylon Rivet AEC7406 39 Wire Saddle DEC1450

40 Card Spacer DNK2769

41 Locking Card Spacer PNW2917 NSP 42 Fuse Card AAX2367 NSP 43 Fuse Card AAX7098 NSP 44 Fuse Card AAX7099

NSP 45 Fuse Card AAX7277 NSP 46 Fuse Card AAX7493

47 Lisence Label V5S ARW7372

48 Screw 4X12 ABA7109

49 Screw BBZ30P080FCC

NSP 50 Binder (BK-1) ZCA-BK1

A

B

C

(2) CONTRAST TABLE

VSX-LX51/HYSXJ5, VSX-1018AH-K/YSXJ5 and VSX-1018AH-S/YSXJ5 are constructed the same except for the following:

Mark No. Symbol and Description

NSP 8 MAIN Assy AWK8053 AWK8058 AWK8058

9 HDMI Assy&DVC AWX9170 Not used Not used

HDMI Assy Not used AWX9131 AWX9131

36 Radiation Sheet PEB1306 Not used Not used

VSX-LX51/

HYSXJ5

VSX-1018AH-K/

YSXJ5

VSX-1018AH-S/

YSXJ5

D

E

F

VSX-LX51

5

6 7 8

81

1

S

L

K

R

I

W

Y

X

J

N

9.4 POWER AMP SECTION

A

B

2 3 4

C

D

E

F

82

VSX-LX51

1

2 3 4

5

POWER AMP SECTION PARTS LIST

6 7 8

Mark No. Description Part No.

1 POWER AMP Assy AWX8984 2 POSI1 Assy AWX9132 3 POSI2 Assy AWX9133 4 BIND_L_FRONT Assy AWX9217 5 BIND_L_BACK Assy AWX9218

6 BIND_R_FRONT Assy AWX9219 7 BIND_R_BACK Assy AWX9220 8 POSI3 Assy AWX9223 9 PRE-STAGE AMP Assy AWX8989

10 H.S.Angle V5S L ANG7611

11 H.S.Angle V5S R ANG7612

NSP 12 Heat Sink V5S ANH7199

13 Nylon Rivet AEC7406 14 Mica Sheet V5SEL AEE7068 15 Side Clamp DEC2007

16 SEMS Screw 3X19 ABA7085 17 Screw BBZ30P080FCC

A

B

C

D

E

F

VSX-LX51

5

6 7 8

83

1

CONTACT SIDE

NON-CONTACT

SIDE

Double Side Tape

10 X 40

Double Side Tape

10 X 20

INTER FACE

CN4801

DSP & USB

CN801

MAIN

CN109

POWER AMP

JH5801

M

Q

O

D

A

B

A

B

*a

*b *b *c

*d

*b

Cut Cut

Cut

VSX-LX51/HYSXJ5 ONLY

N

VSX-LX51 Only

VSX-1018AH Only

9.5 FRONT PANEL SECTION

A

B

2 3 4

C

D

E

F

84

1

VSX-LX51

2 3 4

5

6 7 8

FRONT PANEL SECTION PARTS LIST

Mark

Mark No. Description Part No.

1 DISPLAY Assy See Contrast table(2) 2 POWER SW Assy AWX9118 3 MULTI JOG Assy AWX9119 4 FRONT IN Assy AWX9121 5 HEADPHONE Assy AWX9122

6 VOL Ring 60 ABH7249 7 VOL.Knob See Contrast table(2) 8 Standby BTN Assy See Contrast table(2) 9 Standby BTN See Contrast table(2)

NSP 10 Standby Lens V2 XAK3477

11 Filter 60HY AAK8413 12 Power Ring See Contrast table(2)

No. Description Part No.

13 IB Lens V5SEL See Contrast table(2)

14 Input Cover See Contrast table(2)

15 Window LX51 AAK8433

16 Front Panel See Contrast table(2)

17 Panel Base Assy See Contrast table(2)

18 Func BTN See Contrast table(2)

19 Center Lens See Contrast table(2)

20 Panel Base See Contrast table(2)

21 Pioneer Badge See Contrast table(2)

22 Screw PPZ30P080FNI

23 Panel Assy See Contrast table(2)

(2) CONTRAST TABLE

VSX-LX51/HYSXJ5, VSX-1018AH-K/YSXJ5 and VSX-1018AH-S/YSXJ5 are constructed the same except for the following:

Mark No. Symbol and Description

1 DISPLAY Assy AWX9117 AWX9214 AWX9214 7VOL.Knob AAA7049 AAA7049 AAA7048 8 Standby BTN Assy AAD7773 XAD3216 XAD3217 9 Standby BTN AAD7772 XAD3200 XAD3201

12 Power Ring AAK8427 AAK8431 AAK8435

VSX-LX51/

HYSXJ5

VSX-1018AH-K/

YSXJ5

VSX-1018AH-S/

YSXJ5

A

B

C

13 IB Lens V5SEL AAK8430 Not used Not used 14 Input Cover AAK8432 XAK3596 XAK3597 16 Front Panel ANB7477 AMB7982 AMB7983 17 Panel Base Assy AXG7368 Not used Not used 18 Func BTN AAD7786 AAD7786 AAD7787

19 Center Lens AAK8428 AAK8429 AAK8429 20 Panel Base AMB7990 AMB7991 AMB7993 21 Pioneer Badge BAM1004 XAM3006 VAM1129 23 Panel Assy Not used AXG7372 AXG7373

D

E

F

VSX-LX51

5

6 7 8

85

1

A 1/2

AUDIO_IN

DSP_IN

CRECL

CRECR

VRECL

VRECR

DRECL

DRECR

TVR

TVL

VCRR

VCRL

CDR

CDL

CDRR

CDRL

DVRR

DVRL

TVL

TVR

DRECL

DRECR

CRECR

CRECL

CDRR

CDRL

DVRR

DVRL

VRECR

VRECL

VCRR

VCRL

ADR

ADL

INFR2

INFL2

INSR2

INSL2

INS W2

INC2

INSBR2

INSBL2

DVDR

DVDL

CDR

CDL

DVDR

DVDL

SIRIUSL

SIRIUSR

COUT

SBROUT

SBLOUT

CKS3384-A

CN504

GNDU

1

SBMUTE

2

AMUTE

3

GNDA

4

INSBL1

5

GNDA

6

INSBR1

7

GNDA

8

INC1

9

GNDA

10

INS W1

11

GNDA

12

INSL1

13

GNDA

14

INSR1

15

GNDA

16

INFL1

17

GNDA

18

INFR1

19

CO

15

GNDAC

16

SBRO

17

GNDAC

18

SBLO

19

GNDAC

20

XMR

21

GVCOMX

22

XML

23

10u/50

*C568

2.2u/50

*C561

2.2u/50

*C562

47u/25

C542

47u/25

C541

2.2u/50

*C802

2.2u/50

*C801

47u/25

*C601

47u/25

*C602

47u/25

C545

47u/25

C546

10u/50

C543

10u/50

C544

47u/25

C555

47u/25

C556

47u/25

C551

47u/25

C552

47u/25

C557

47u/25

C558

47u/25

C549

47u/25

C550

10u/50

C548

10u/50

C547

10u/50

C554

10u/50

C553

2.2u/50

*C560

2.2u/50

*C559

C531

150p/50

C528

NM

C505

100p/50

C526

150p/50

C506

100p/50

C525

150p/50

C523

NM

C515

100p/50

C524

NM

C534

NM

*C519

330p/50

*C520

330p/50

*C540

100p/50

*C539

100p/50

C639

0.1u/16

C521

150p/50

C522

150p/50

*C567

0.01u/50

*C565

100p/50

*C566

100p/50

C641

0.1u/16

C501

100p/50

C502

100p/50

C503

220p/50

C504

220p/50

C513

220p/50

C507

220p/50

C598

0.01u/50

C597

0.01u/50

C599

0.01u/50

C508

220p/50

C514

220p/50

*C803

330p/50

C517

100p/50

C536

150p/50

C538

150p/50

C537

150p/50

C518

100p/50

C527

NM

C529

150p/50

C512

100p/50

C510

100p/50

C511

100p/50

C530

150p/50

C509

100p/50

C532

150p/50

C535

150p/50

*C804

330p/50

C533

NM

C516

100p/50

*C569

0.1u/16

GN DU2

GN DA GN DCH

GNDA

GN DA

GND_SG

GN DA

GVCOMX

GN DA

GNDCH

GN DA

GNDA

GN DA

VCOMGA(AD)

GN DA

GNDCH

GN DCH

GNDCH

GN DA

GNDA

GN DA

GNDA

GN DA

GNDU

GN DU

GVCOMX

GN DA

*IC503

M61545FP

V_IN11NC12OUT_13NC2

4

5

GND

6

NC37DATA

8

CLK9NC410VCC

11

OUT_212V_IN2

13

NC5

14

CREF

JA505

AKB7048-A

7

5

6

4

3

2

1

JA502

AKB7048-A

7

5

6

4

3

2

1

AKB7050-A

JA503

3 WHT1

2

1

RED1

6 WHT2

5

4

RED2

9

WHT3

8

7

RED3

10

AKB7050-A

JA504

3 WHT1

2

1

RED1

6 WHT2

5

4

RED2

9

WHT3

8

7

RED3

10

*Q519 IMX25

*Q519

IMX25

R530

330

R525

330

*R544

10k

*R555

470

*R556

470

R510

470k

*R539

100

*R806

2.7k

R535

330

R512

470k

R503

470k

R501

470k

*R550

0

R524

2.2k

*R549

0

R502

470k

*R520

NM

*R801

47k

*R802

47k

R516

470k

R513

470k

*R803

2.7k

*R804

2.7k

R515

470k

*R805

2.7k

R527

2.2k

R528

2.2k

R526

330

*R546

100k

*R896NM*R895

NM

R521

330

*R545

100k

*R542

2k

R518

470k

R517

470k

R537

330

R538

330

*R540

100

R507

470k

*R547

NM

*R548

NM

*R551

NM

*R552

NM

R554

NM

R553

NM

R511

470k

R508

470k

R504

470k

*R558

47k

R509

470k

R505

470k

R533

2.2k

R534

2.2k

*R519

NM

*R541

2k

R820

NM

R819

NM

*R898NM*R897

NM

R514

470k

*R5601k*R559

1k

*R543

10k

*R557

470

R506

470k

R536

330

R532

330

R531

330

R522

330

R529

330

R523

2.2k

TP38

TP7

V-7A

V+7A

V+12A

FVR

MICOUT

MRMUTE

FVL

MRVLDT

TR

TL

VLCK

SL

SR

FL

AMUTE

SBMUTE

FR

C

SBL

SBR

SW

R910

0

C902

NM

C903

NM

C904

NM

GNDLP

GN DA

NM

C901

BD3473KS2

IC501

SBLOUT

1

SBROUT

2

COUT

3

SWOUT

4

SLOUT

5

SROUT

6

FLOUT

7

FROUT

8

VEE

9

CLOCK

10

DATA

11

DGND

12

VCC

13

TNF1

14

BNF1

15

BOUT1

16

BOUT2

17

BNF2

18

TNF2

19

AGND1

20

AGND2

21

SBLIN1

22

SBRIN1

23

CIN1

24

SWI N1

25

SLIN1

26

SRIN1

27

FLIN1

28

FRIN1

29

AGND3

30

ADCL

31

ADCR

32

AGND4

33

SUB1R

34

SUB1L

35

AGND5

36

INR1

37

INL1

38

INR2

39

INL2

40

INR3

41

INL3

42

INR4

43

INL4

44

INR5

45

INL5

46

INR6

47

INL6

48

INR7

49

INL7

50

INR 8

51

INL 8

52

INR9

53

INL9

54

INR10

55

INL10

56

INR11

57

INL11

58

INR12

59

INL12

60

AGND6

61

INR13/FRIN 262INL13/FLIN 263INR14/SRIN 2

64

INL14/SLIN 2

65

INR15/SW IN2

66

INL15/CIN 267INR16/SBRIN 268INL16/SBLIN 269AGND770INR17/RECR1

71

INL17/RECL172INR18 /RECR273INL18 /RECL274RECR3

75

RECL376RECR4/SUB2R77RECL4/SUB2L

78

AGND8

79

AGND9

80

GN DAC

C644

NM

C643

NM

*D502

DAN217U

R602

6.8k

R601

6.8k

C634

0.1u/16

C633

0.1u/16

C635

0.1u/16

C632

0.1u/16

C636

2200p/50

C631

2200p/50

CD

CD-R

DV R1

TV

DV R1

DV R2

DV D

MR OUT

OUT

IN

OUT

IN

OUT

IN

C601

R896

R897

*2

NM

R89 8

C602

R895

1K

*2

*2 *2 *2 *2

R635

R632

R631

R636

(ZONE2

LO)

(ZONE2

RO)

NM

*2*2*2

A 1/2

2/2A

CN4804

E

2/2A

(M)

: Audio Signal Route (Mic ch)

(CD)

: Audio Signal Route (CD L ch)

(DVD)

: Audio Signal Route (DVD L ch)

(MR)

: Audio Signal Route (MR ch)

(TL)

: Audio Signal Route (Tuner L ch)

(TV)

: Audio Signal Route (TV L ch)

(FL)

: Audio Signal Route (Front L ch)

(FVL)

: Audio Signal Route (Video L ch)

(SL)

: Audio Signal Route (Surround L ch)

(C)

: Audio Signal Route (Center ch)

(SB)

: Audio Signal Route (Surround Back L ch)

(SW)

: Audio Signal Route (SubWoofer ch)

(CD)

(REC)

(DVD)

(DVR)

(TV)

(SB)

(C)

(REC)

(ADC)

: Audio Signal Route (ADC L ch)

(REC)

: Audio Signal Route (REC L ch)

(DVR)

: Audio Signal Route (DVR L ch)

(REC)

(CD)

(MR)

(M)

(FVL)

(DVD)

(TV)

(DVR)

(CD)

(TL)

(REC)

(FL)

(SL)

(C)

(SW)

(SB)

(FL)

(SL)

(SB)

(C)

(SW)

(FL)

(SL)

(SB)

(C)

(SW)

(ADC)

(MR)

2 3 4

10. SCHEMATIC DIAGRAM

10.1 AUDIO IN ASSY (1/2)

A

B

C

D

E

F

86

1

VSX-LX51

2 3 4

5

A 1/2

AUDIO IN ASSY (AWK8051)

A 1/2

INSL2

INSR2

SLOUT

SROUT

INC2

SWOUT

COUT

LPF_IN

FROUT

FLOUT

INFL2

INFR2

INS W2

INSBR2

SBLOUT

INSBL2

RIN

LIN

XML

XMR

FROUT

FLOUT

SROUT

SLOUT

SWOUT

SBROUT

XMR

XML

RIN

LIN

52044-2345

CN501

RIN

1

VCOMGA

2

LIN

3

GNDAC

4

FRO

5

VCOMGF

6

FLO

7

GNDAC

8

SRO

9

GNDAC

10

SLO

11

GNDAC

12

SWO

13

GNDAC

14

100u/25

C591

100u/25

C592

2.2u/50

C781

2.2u/50

C702

2.2u/50 C701

2.2u/50

C742

2.2u/50

C761

2.2u/50 C741

2.2u/50

C782

10u/50

C709

10u/50

C710

10u/50

C769

10u/50

C789

10u/50

C770

10u/50

C790

10u/50

C750

10u/50

C749

10u/50

*C809

10u/50

*C810

10u/50

C714

10u/50

C713

2.2u/50

C762

NM

C892

NM

C642

NM

C640

NM

C799

C746

0.01u/50

C744

0.022u/50

C721

0.01u/50

C722

0.01u/50

C703

470p/50

C704

470p/50

C792

4700p/50

C784

330p/50

C791

4700p/50

C718

0.01u/50

C717

0.01u/50

C723

NM

C785

330p/50

C711

NM

C715

NM

C786

330p/50

*C814

0.01u/50

C716

NM

C719

0.1u/16

C793

0.01u/50

C783

330p/50

C794

0.01u/50

C720

0.1u/16

C638

100p/50

C637

100p/50

C773

0.01u/50

C774

0.01u/50

C771

4700p/50

C772

4700p/50

C752

4700p/50

C766

330p/50

C765

330p/50

C751

4700p/50

C764

330p/50

C763

330p/50

*C811

4700p/50

*C813

0.01u/50

C745

330p/50

C724

NM

*C806

330p/50

C706

330p/50

C705

330p/50

*C812

4700p/50

*C805

330p/50

C754

0.01u/50

C743

330p/50

C753

0.01u/50

C712

NM

VCOMGA(AD)

GN DA

GNDU

GN DU1

GNDU

GN DU1

GN DA

GNDLP

GN DA

IC502

TC4066BFT

IN/OUT1

1

OUT/IN1

2

OUT/IN2

3

IN/OUT2

4

5

CONT2

6

CONT3

7

VSS

8

IN/OUT3

9

OUT/IN3

10

OUT/IN4

11

IN/OUT4

12

CONT4

13

CONT1

14

VDD

IC781

NJM4565MD

3

4

2

1

8

IC761

NJM4565MD

5

4

6

7

8

*IC801

NJM4565MD

3

4

2

1

8

IC781

NJM4565MD

5

4

6

7

8

*IC801

NJM4565MD

5

4

6

7

8

IC702

NJM4565MD

3

4

2

1

8

IC702

NJM4565MD

5

4

6

7

8

IC741

NJM4565MD

3

4

2

1

8

IC741

NJM4565MD

5

4

6

7

8

IC701

NJM4565MD

5

4

6

7

8

IC701

NJM4565MD

3

4

2

1

8

IC761

NJM4565MD

3

4

2

1

8

VEF1040-A

JH1

JV457

NM

JV458

NM

R750

1.8k

R786

2.7k

R784

2.7k

R723

4.7k

R724

4.7k

R775

NM

R732

100

R731

100

R725

1.2k

R728

3.9k

R727

3.9k

R722

4.7k

R721

4.7k

R720

0

R719

0

R711

2.7k

R701

47k

R702

47k

R743

2.7k

R742

47k

R757

100

R741

47k

R758

100

R747

2.7k

R745

2.7k

R591

0

R592

0

R604

1k

R703

3.3k

R603

1k

R777

100

R778

100

R772

1.2k

R771

1.2k

R768

2.7k

R767

2.7k

R765

2.7k

R766

2.7k

R764

2.7k

R763

2.7k

R762

47k

*R815

NM

R761

47k

*R807

2.7k

*R818

100

*R816

NM

*R817

100

*R808

2.7k

R785

2.7k

R704

3.3k

R748

39k

R755

NM

R792

1.2k

R715

470k

R797

100

R716

470k

R744

3.3k

R782

47k

R783

2.7k

R712

2.7k

R729

NM

R751

1.2k

R730

NM

R733

47k

R791

1.2k

R593

NM

R594

NM

R795

NM

R756

NM

R776

NM

R796

NM

R788

2.7k

R746

5.6k

R708

3.9k

R707

3.9k

R706

3.3k

R705

3.3k

R726

1.2k

R787

2.7k

R781

47k

R798

100

TP68

TP72

TP93

TP94

TP113

TP101

TP102

TP103

TP104

V-7A

V-12A

V+12A

V+7A

V-7A

V+7A

V-12A

V+12A

V-12A

V+12A

V-12A

V+12A

V-12A

V+12A

VLDT

VLCK

LSSN

C767

390p/50

C768

390p/50

C747

390p/50

C708

330p/50

C707

330p/50

C748

5600p/50

R709

3.9k

R710

3.9k

R713

390

R714

390

R753

390

R752

3.9k

R749

3.3k

R754

330

R773

390

R774

390

R769

3.3k

R770

3.3k

*C807

390p/50

*C808

390p/50

*R813

470

*R814

470

*R811

1k

*R812

1k

*R809

3.3k

*R810

3.3k

R911

0

R912

0

R913

0

R914

0

R915

0

GN DA

R916

0

R917

0

GMDLP

GN DA

R902

NM

R903

NM

R904

NM

C905NMC906

NM

C907

NM

C908

NM

C909

NM

GN DA

D501

DAN217U

C787

390p/50

C788

390p/50

R789

3.3k

R790

3.3k

R793

390

R794

390

UMD2N

Q701

2E

1

2B

2

1C

31E4

5

1B

6

2C

(AD)

(VCOMGS)

(VCOMGC)

A 1/2

2/2A

CN601

C 3/5

(ADC)

(SW)

(SL)

(FL)

(ADC)

(FL)

(SW)

(FL)

(SL)

(C)

(SB)

(SW)

6 7 8

A

VSX-LX51

5

6 7 8

B

C

D

E

F

87

1

A 2/2

52044-1145

*CN507

TCE

1

TDI

2

TCLK

3

TDO

4

GN DT

5

TL

6

V+9T

7

TR

8

VSM

9

FMDET

10

GN DT

11

52044-1145

CN506

TCE

1

TDI

2

TCLK

3

TDO

4

GN DT

5

FMDET

6

GN DT

7

GN DU

8

VLCK

9

VLDT

10

LSSN

11

100u/16

*C684

4.7u/50

C836

C664

NM

C663

NM

C661

NM

C662

NM

*C681

NM

*C683

NM

C665

NM

*C682

NM

*C697

1u/16

*C699

0.01u/50

C833

220p/50

*C698

0.1u/50

*D682

NM

*D681

UDZS10(B)

GN DT

GN DU

GN DU1

GN DU2

GN DT

GN D_SG

GN DA

GN DCH

GN DA

IC821

NJM4565MD

5

4

6

7

8

IC821

NJM4565MD

3

4

2

1

8

*Q681

2SD1664(PQR)

*R686

NM

*R6850*R684

NM

*R682

390

1/4MFU

*R681

NM

*R683

0

R834

22k

R835

6.8k

R833

6.8k

V-12A

V+12A

V+12T

V+12A

V-12A

V+12T

V+9T

V-7A

V+7A

V+12T

SW

SIRIUS_RESET

VLDT

LSSN

VLCK

MRMUTE

TR

TL

FVR

FVL

SIRIUS_TX

MRVLDT

SIRIUS_RX

MICOUT

C834

0.1u/16

C835

0.1u/16

XKP3059-A

CN502

1

V-12A

2

V-12A

3

V+12A

4

V+12A

5

V+12T

6

GN DA

7

GN DA

8

GN DA

9

GN DA

10

V-7A

11

V+7A

12

GN DA

13

FV L

14

GN DA

15

FV R

16

GN DA

17

MICOUT

XKP3090-A

CN503

3

MRVLDT

15

GN D_SG

8

SIRIUS_TX

11

GN D_SG

2

MRMUTE

4

NC

12

GN D_SG

10

GN D_SG

5

GN DU

6

SIRIUS_RESET

7

SIRIUS_RX

9

GN DU

1

GN DU

14

GN D_SG

13

GN D_SG

CN110

FM/AM

TUNER UNIT

CN4806

E

4/4B

1/2

A

CN4805

E

1/2A

1/2

A

1/2A

(FVL)

(M)

(TL)

(SW)

10.2 AUDIO IN ASSY (2/2)

A

2 3 4

B

C

D

E

F

88

VSX-LX51

1

2 3 4

5

A 2/2

AUDIO IN ASSY (AWK8051)

A 2/2

CKS3382-A

CN505

SBMUTE

1

AMUTE

2

GN DA

3

SBL

4

GN DA

5

SBR

6

GN DA

7

FL

8

GN DA

9

CO

10

GN DA

11

FR

12

GN DA

13

SL

14

GN DA

15

SR

16

GN DA

17

47u/25

C867

47u/25

C847

47u/25

C82 8

47u/25

C887

47u/25

C827

47u/25

C86 8

47u/25

C625

47u/25

C626

47u/25

C623

47u/25

C628

47u/25

C621

47u/25

C627

47u/25

C622

47u/25

C84 8

47u/25

C624

47u/25

C888

C863

NM

C862

NM

C829

100p/50

C864

NM

C861

NM

C841

NM

C869

100p/50

C832

NM

C824

NM

C881

NM

C849

100p/50

C890

100p/50

C831

0.01u/50

C883

NM

C871

0.01u/50

C844

NM

C872

NM

C870

100p/50

C842

NM

C882

NM

C830

100p/50

C821

NM

C884

NM

C850

100p/50

C843

NM

C822

NM

C889

100p/50

C823

NM

GN DA

GN DCH

GN DA G NDCH

JA507

AKB7048-A

7

5

6

4

3

2

1

JA506

AKB7048-A

7

5

6

4

3

2

1

Q842

IMX25

Q881

IMX25

Q841

IMX25

Q881

IMX25

Q821 IMX25

Q822

IMX25

Q821

IMX25

Q822 IMX25

Q862

IMX25

Q841

IMX25

Q882

IMX25

Q882 IMX25

Q861

IMX25

Q862

IMX25

Q842

IMX25

Q861

IMX25

R822

270

R830

100

R86 8

10k

R823

10k

R831

470k

R847

10k

R627

100k

R861

270

R867

10k

R881

270

R628

100k

R821

270

R891

470k

R890

100

R889

100

R827

10k

R825

120

R625

100k

R626

100k

R623

100k

R624

100k

R621

100k

R846

120

R844

10k

R82 8

10k

R829

100

R842

270

R892

470k

R852

470k

R864

10k

R843

10k

R832

470k

R862

270

R826

120

R849

100

R887

10k

R869

100

R886

120

R84 8

10k

R872

470k

R866

120

R824

10k

R885

120

R851

470k

R841

270

R882

270

R863

10k

R883

10k

R865

120

R845

120

R850

100

R871

470k

R888

10k

R884

10k

R870

100

R622

100k

SBR

AMUTE

SR

SL

SBMUTE

FR

FL

SBL

C

C825

470p/50

C826

470p/50

C845

470p/50

C846

470p/50

C865

470p/50

C866

470p/50

C885

470p/50

C886

470p/50

R

C

SW

SL

SR

SBL

SBR

L

PREOUT

CN6603

S

1/2A

(FL)

(SW)

(C)

(SL)

(FL)

(C)

(SB)

(FL)

(C)

(SW)

(SL)

(SB)

(FVL)

: Audio Signal Route (Video L ch)

(FL)

: Audio Signal Route (Front L ch)

(SL)

: Audio Signal Route (Surround L ch)

(C)

: Audio Signal Route (Center ch)

(SB)

: Audio Signal Route (Surround Back L ch)

(SW)

: Audio Signal Route (SubWoofer ch)

(TL)

: Audio Signal Route (Tuner L ch)

6 7 8

A

B

C

D

5

VSX-LX51

6 7 8

E

F

89

1

B 1/4

51C

51B

51A

TV

M51C

M51B

M51ADVD

DVR1

DVR2

V53C

V53B

V53C

V53B

M51C

M51B

EXPST

EXPDT1

OSDCK

M51A

OSDDT

OSDCK

OSDCS

OSDRST

OSDDT

EXPDT1

DVD

DVR1

DVR2

EXPOE

EXPST

OSDCS

TV

FV

51A

51B

51C

OSDCK

EXPOE

OSD_SG

DVR1

DVR2

DVD

TV

DVDIN _Y

DVDIN _C

TVI N_Y

51C

51B

51A

DVR2IN _C

DVR2IN _Y

DVR1IN _C

DVR1IN _Y

TVI N_C

OSDCS

OSDDT

FV

EXPST

EXPOE

EXPDT1

OSDCK

OSDRST

CV_OUT1

ASS7080-A

X1001

V-5V

VOS1 VOS2

VOS2

V+5V

V+5.6V

V-5V

V+5V

VOS1

V+5V

TP399

47k

R1045

47k

R1041

47k

R1042

47k

R1043

47k

R1044

NM

R1077

47k

R1048

3.9k

R1073

560

R1050

NM

R1051

NM

R1052

1k

R1074

47k

R1046

75

*R1202

NM

R1075

75

*R1205

75

*R1203

75

*R1206

75

*R1201

47k

R1047

1k

R1076

330

R1070

330

R1069

330

R1071

75

*R1208

75

*R1204

NM

R1005

NM

R1006

5.1k

R1072

75

R1004

75

*R1207

75

R1002

75

R1003

75

R1001

AKB7200-A

*JA1003

1

2

3 4

5

6 7

15

AKB7200-A

*JA1001

1

2

3 4

5

6 7

15

AKB7200-A

*JA1002

1

2

3 4

5

6 7

15

AKB7200-A

*JA1001

8

9

10 11

12

13 14

PDC162A

IC1006

VSS11XtalIN

2

XtalOUT3CTAL1

4

5

BLANK6OSCIN

7

OSCOUT8CHARA9CS

10

SCLK

11

SIN

12

VDD2

13

CVout

14NC15

CVin

16

VDD3

17

SYNin

18

SEPC

19

SEPout

20

SEPin

21

CTRL222CTRL3

23

RST

24

VDD1

IC1005

BU4094BCFV

STB1DATA2CLOCK3Q1

4

5Q26Q37Q48

VSS

9QS10

QS'

11Q812Q713Q614Q515OE16

VDD

IC1003

TC74HC4053AFT

1Y10Y21Z3Z-COM

4

5

0Z6INH7VEE

8

GND

9C10B11A120X131X14

X-COM15Y-COM

16

VCC

IC1002

TC74HC4051AFT

4162COM37

4

556

INH7VEE8GND

9C10B11A12313014115216

Vcc

IC1001

TC74HC4051AFT

4162COM37

4

556

INH7VEE8GND

9C10B11A12313014115216

Vcc

GN DU

GN DV

GOS2

GOS1

GOS2

GN DU

NM

C1077

560p/50

C1050

0.1u/16

C1005

0.1u/16

C1009

0.1u/16

C1008

0.1u/16

C1006

0.1u/16

C1007

0.1u/16

C1010

0.1u/16

C1041

0.1u/16

*C1202

0.1u/16

*C1201

0.1u/16

*C1203

0.1u/16

*C1204

NM

C1003

NM

C1004

NM

C1001

NM

C1002

100p/50

C1076

1200p/50

C1074

0.01u/50

C1073

NM

C1072

0.047u/25

C1063

0.047u/25

C1064

100p/50

C1071

100p/50

C1070

100p/50

C1069

24p/50

C1068

24p/50

C1067

5p/50

C1066

C1061

100u/10

C1062

100u/10

*JA1101

NM

3 4

5

*JA1101

NM

1 2

*JA1102

NM

1 2

*JA1103

NM

1 2

L1001

33u

C1065

5p/50

C1075

1200p/50

Q1002

2SC4081(QR)

D1005 DAP202U

NM0ΩR1080

C1201 - C1204 R1201 - R1208 J1001 - J1003 J1004 AKB7199

AKB7200

75

Ω

0.1μ/16

J1101 - J1103 J1104

NM

DVD IN

TV IN

DVR1 IN

DVR2 IN

*1

AWK 8058

AWK 8053

*R1080

2/4B

4/4

B

2/4B

4/4B

3/4, 4/4 B

3/4

B

(DVD)

(TV)

(DVR)

(DVD)

(DVR)

(SC)

(MRV)

(CV)

(V)

(MONI)

(TV)

(FV)

(SY)

10.3 MAIN ASSY (1/4)

A

B

C

D

E

2 3 4

F

90

VSX-LX51

1

2 3 4

5

B 1/4

MAIN ASSY (VSX-LX51 : AWK8053) (VSX-1018AH : AWK8058)

B 1/4

51A

M51A

M51B

51B

51C

M51C

HDMIRDY

HDDO

HDMIREQ3

HDDI3

HDSCK3

HDRST3

CV_IN

CV_OUT1

REC2_SC

HDMIRDY3

HDMIREQ

CV_OUT

VMUTE

REC1_SY

HDDO3

MAIN_SY

MAIN_SC

REC1_SC

HDRST

HDSCK

HDDI

REC2_SY

V-5V

V+5V

V+5US V+3.3

V+5USV+3.3

V+5V

0

R1013

47k

R1031

47k

R1033

47k

R1032

10k

R1012

10k

R1018

10k

R1015

10k

R1011

10k

R1016

10k

R1035

1k

R1036

0

*R1037

10

R412

100

R406

100

R405

100

R404

NM

R1020

100

R403

100

R402

100

R401

NM

R1022

0

R1030

0

R1034

75

R1027

75

R1025

75

R1023

75

R1021

NM

R1024

NM

R1026

NM

R1038

NM

R1017

330

R411

AKB7200-A

*JA1002

8

9

10 11

12

13 14

AKB7200-A

*JA1003

8

9

10 11

12

13 14

NM

*JA1104

1 2

LA7109

IC1004

VIN 1+

1

NFB1

2

MUTE1

3

VIN 2+

4

5

NFB2

6

-VCC1

7

VIN 3+

8

NFB3

9

N.C.1

10

N.C.2

11

VIN 4+

12

NFB4

13

MUITE2

14

VIN 5+

15

NFB5

16

-VCC2

17

VIN 6+

18

NFB619-VCC3

20

MUITE3

21

VOUT6

22

DR_CTL1

23

VOUT5

24

GND1

25

VOUT4

26

+VCC2

27

N.C.3

28

N.C.4

29

-VCC4

30

MUTE4

31

VOUT3

32

DR_CTL2

33

VOUT2

34

GND2

35

VOUT1

36

+VCC1

TC74VHCT08AFTS1

IC402

(3/4)

8

9

10

14

7

TC74VHC08FTS1

IC401

(4/4)

11

12

13

14

7

TC74VHCT08AFTS1

IC402

(2/4)

6

4

5

14

7

TC74VHC08FTS1

IC401

(1/4)

3

1

2

14

7

TC74VHCT08AFTS1

IC402

(1/4)

3

1

2

14

7

TC74VHC08FTS1

IC401

(2/4)

6

4

5

14

7

TC74VHC08FTS1

IC401

(3/4)

8

9

10

14

7

TC74VHCT08AFTS1

IC402

(4/4)

11

12

13

14

7

GN DHD

GN DV

GN DU

GN DV

UDZS3R9(B)

D411

180p/50

C1022

180p/50

C1020

180p/50

C1024

180p/50

C1026

0.1u/16

C411

0.1u/16

C1013

0.1u/16

C1014

0.1u/16

C402

0.01u/50

C1036

0.01u/50

C1035

0.1u/16

C401

C1012

100u/10

C1034

100u/10

C1011

100u/10

C1018

100u/10

C1038

NM

C1017

NM

C1016

100u/10

C1487

100u/10

C412

10u/50

*JA1103

NM

3 4

5

*JA1102

NM

3 4

5

*JA1004

AKB7199-A

1

2

3 4

5

6 7

8JA1403

AKB7175-A

3

2

1

D1004

1SS355

2SA1576A(QR)

Q1001

Q411

2SC4081(QR)

D1001

DAN202U

D1002 DAN202U

D1003 DAN202U

C1039

0.01u/50

NMR1037

AWK 8053

0Ω

ZONE2 OUT

MAIN OUT

DVR2 OUT

DVR1 OUT

MONITOR

*1

AWK 8058

MAIN & HDMI CON TROL LINE

(3-5, 5-3)

MR MUTE

DV R1 MUTE

DV R2 MUTE

4/4B

4/4

B

4/4B

2/4, 3/4

B

2/4B

4/4B

(SY)

: S-Video Signal Route (Y ch)

(CV)

: Video Signal Route (Component Video)

(SC)

: S-Video Signal Route (C ch)

(MRV)

: Video Signal Route (Zone)

(V)

: Video Signal Route

(MONI)

: Video Signal Route (Monitor)

(DVD)

: Video Signal Route (DVD ch)

(TV)

: Video Signal Route (TV ch)

(DVR)

: Video Signal Route (DVR ch)

(FV)

: Video Signal Route (Video)

(CV)

(SC)

(SY)

(MRV)

(V)

(MONI)

6 7 8

A

B

C

D

E

VSX-LX51

5

6 7 8

F

91

1

B 2/4

S_Y

S_C

SY_IN

XSDET

SBMUTE

AMUTE

MRMUTE

SC_IN

51A

DVDIN_C

TVIN_Y

LOW_POW

SY_OUT

DVDIN_Y

DVR1IN_Y

DVR2IN_Y

DVR2IN_C

TVI N_C

SC_OUT

DVR1IN_C

XMRMUTE

XSBMUTE

MRSP

DSP_MUTE

DIRERR

HDMUTE

51A

ADMD

51B

51C

XSMUTE

S53ABC

51B

XAMUTE

V+5UM

V-5V

V+5UM1

V+5V

V+5US V+5UM

V+5V

V-5V

V+5V

V-5V

TP383

TP382

220k

*R1276

47

R384

47k

R381

NM

R382

2.2k

R383

1k

*R1253

NM

*R1262

NM

*R1261

100k

R306

100k

R307

100k

R302NMR303

100k

R301

100k

R304

100k

R305

NM

R1271

1k

*R1274

120k

*R1272

47k

*R1273

NM

*R1216

NM

*R1215

330

*R1275

47k

*R1278

NM

*R1279

22k

*R1280

0

*R1264

0

*R1263

120k

*R1252

120k

*R1256

NM

R1210

NM

R1209

150k

*R1251

150k

*R12551k*R1257

NM

R1211

NM

R1212

*IC1271

LA7213

112233445

5

(4/4)

TC74VHC02FTS1

IC302

13

11

12

14

7

(3/4)

TC74VHC02FTS1

IC302

10

8

9

14

7

*IC1201

TC74HC4051AFT

4162COM37

4

556

INH7VEE8GND

9C10B11A12313014115216

Vcc

*IC1203

TC74HC4053AFT

1Y10Y21Z3Z-COM

4

50Z6

INH7VEE8GND

9C10B11A120X131X14

X-COM15Y-COM

16

VCC

*IC1202

TC74HC4051AFT

4162COM37

4

556

INH7VEE8GND

9C10B11A12313014115216

Vcc

(3/4)

TC74VHCT125AFTS1

IC301

10

G

9 A

8

Y

VCC

GND

(1/4)

TC74VHCT125AFTS1

IC301

1

G 2 A

3 Y

VCC

GND

(2/4)

TC74VHCT125AFTS1

IC301

4

G

5

A

6

Y

VCC

GND

(4/4)

TC74VHC08FTS1

IC303

11

12

13

14

7

(2/4)

TC74VHC08FTS1

IC303

6

4

5

14

7

(1/4)

TC74VHC08FTS1

IC303

3

1

2

14

7

(3/4)

TC74VHC08FTS1

IC303

8

9

10

14

7

GN DU

GN DV

GN DU

GNDHD

GN DU

0.01u/50

*C1277

0.1u/16

C303

0.1u/16

*C1209

0.1u/16

*C1208

0.1u/16

*C1207

0.1u/16

*C1210

0.1u/16

*C1205

0.1u/16

*C1206

0.1u/16

C381

0.1u/16

C301

0.01u/50

*C1257

0.01u/50

*C1258

0.01u/50

*C1253

0.01u/50

*C1254

*C1271

220u/16

*C1261

NM

*C1262

NM

C382

470u/6.3

*C1256

100u/10

*C1276

100u/10

*C1251

100u/10

*C1275

3.3u/50

*C1278

22u/50

*R1277

10k

*D1277

1SS355

NM

Q382

2SA1576A(QR)

*Q1201

2SA1576A(QR)

*Q1202

2SA1576A(QR)

*Q1271

DTC114EUA

Q381

DTC114EUA

*Q1277

DTC124EUA

*Q1278

DTA124EUA

Q301

DTA124EUA

Q302

DTA124EUA

Q303

C1265

0.01u/50

AWK8053

C1209 - C1210 R1263 - R1264

NM

IC1203

NM

0 Ω

0.1m/16

NM

TC74HC4053AFT

NMR1215,R1216

AWK 8058

0 Ω

AWK 8053

AWK 8058

MONI.OUT Y

MONI.OUT C

DV R OUT Y

DV R OUTC

1/4B

4/4B

1/4

B

3/4

B

4/4

B

1/4

B

4/4B

4/4

B

4/4

B

4/4

B

4/4B

(SC)

(SY)

(SC)

(SY)

(SC)

(SY)

(SC)

(SY)

(SC)

(SY)

(SC)

(SY)

(SC)

10.4 MAIN ASSY (2/4)

A

2 3 4

B

C

D

E

F

92

VSX-LX51

1

2 3 4

5

B 2/4

MAIN ASSY (VSX-LX51 : AWK8053) (VSX-1018AH : AWK8058)

SIRIUS_RX

232C_CTS

E232CTX

XM/SIRI_TX

SR+TX/USB_DAO

USB_DAI

SR+RX

REC2_SC

REC2_SY

REC1_SC

REC1_SY

MAIN_SC

MAIN_SY

XM_RX

232C_RX

M232CTX

51C

51A

E232CRX

XM/SIRI_SW

VMUTE

SR+RX/USB_DAI

USB_DAO

SR+TX

XM/SIRI_RX

XM_TX

SIRIUS_TX

SR+/USB_SW

232C_SW1

M232CCTS

M232CRX

232C_TX

232C_SW2

51B

51C

V-5V

V+5US

V+5V

V+5US

100

R314

100k

R356

0

R340

NM

R353

0

*R1232

47k

*R1233

10k

R354

75

*R1239

1.8k

R333

0

*R1231

10k

*R1225

10k

*R1226

10k

*R1229

10k

*R1227

NM

*R1228

NM

*R1230

100k

R357

100k

R343

100k

R339

100k

R351

100k

R355

100k

R332

100k

R358

100k

R352

100k

R317

100k

R321

100k

R312

100k

R313

100k

R319

100k

R315

100

R320

100

R334

100

R336

100

R338

100

R318

100

R316

100

R342

100

R311

100

R331

NM

*R1235

NM

*R1238

75

*R1236

75

*R1237

47k

*R1234

75

*R1240

75

*R1241

75

*R1242

(2/4)

TC74VHC02FTS1

IC302

4

5

6

14

7

(1/4)

TC74VHC02FTS1

IC302

1

2

3

14

7

LA7109

*IC1205

VIN 1+

1

NFB1

2

MUTE1

3

VIN 2+

4

5

NFB2

6

-VCC1

7

VIN 3+

8

NFB3

9

N.C.1

10

N.C.2

11

VIN 4+

12

NFB4

13

MUITE2

14

VIN 5+

15

NFB5

16

-VCC2

17

VIN 6+

18

NFB619-VCC3

20

MUITE3

21

VOUT6

22

DR_CTL1

23

VOUT5

24

GND1

25

VOUT4

26

+VCC2

27

N.C.3

28

N.C.4

29

-VCC4

30

MUTE4

31

VOUT3

32

DR_CTL2

33

VOUT2

34

GND2

35

VOUT1

36

+VCC1

(3/4)

TC74VHC125FTS1

IC305

10G 9 A

8

Y

VCC

GND

(1/4)

TC74VHCT125AFTS1

IC306

1

G 2 A

3 Y

VCC

GND

(2/4)

TC74VHCT125AFTS1

IC306

10

G

5

A

6

Y

VCC

GND

(4/4)

TC74VHCT125AFTS1

IC306

13

G

12

A

11

Y

VCC

GND

(2/4)

TC74VHC125FTS1

IC305

4

G

5 A

6

Y

VCC

GND

(4/4)

TC74VHCT125AFTS1

IC301

13

G

12

A

11

Y

VCC

GND

(2/4)

TC74VHC125FTS1

IC304

4

G

5 A

6 Y

VCC

GND

(4/4)

TC74VHC125FTS1

IC305

13

G 12 A11Y

VCC

GND

(1/4)

TC74VHC125FTS1

IC304

1

G

2 A

3 Y

VCC

GND

(3/4)

TC74VHC125FTS1

IC304

10

G 9 A

8

Y

VCC

GND

(4/4)

TC74VHC125FTS1

IC304

13

G 12 A

11

Y

VCC

GND

(1/4)

TC74VHC125FTS1

IC305

1

G

2 A

3

Y

VCC

GND

GN DU

GN DV

GN DU

180p/50

*C1240

0.1u/16

C302

0.1u/16

C305

0.1u/16

C306

0.1u/16

C304

NM

*C1230

0.1u/16

*C1229

0.1u/16

*C1226

180p/50

*C1239

180p/50

*C1241

180p/50

*C1235

180p/50

*C1242

180p/50

*C1237

0.1u/16

*C1485

0.1u/16

*C1483

0.1u/16

*C1484

0.1u/16

*C1224

0.1u/16

*C1223

*C1228

NM

*C1227

100u/10

*C1225

100u/10

IC306

TC74VHCT125AFTS1

(3/4)

G

4

9

A

8

Y

VCC

GND

D334

1SS355

D338

NM

*D1201

DAN202U

1

2

3

*D1202

DAN202U

1

2

3

4/4B

4/4

B

4/4

B

4/4

B

4/4B

4/4

B

4/4

B

4/4

B

1/4

B

1/4

B

1/4B

1/4, 3/4

B

(SY)

: S-Video Signal Route (Y ch)

(SC)

: S-Video Signal Route (C ch)

(SC)

(SY)

(SC)

(SY)

(SC)

(SY)

(SC)

(SY)

(SC)

6 7 8

A

B

C

5

VSX-LX51

6 7 8

D

E

F

93

1

B 3/4

CR2

CR3

CR1

CB2

CB1

CB3

C52A

C52B

CY2

CY1

CY3

C52A

C52B

C53ABC

D53INH

D53

C53ABC

CR_IN

CY_IN

CB_IN

C52A

C52B

CR_OUT

CB_OUT

CY_OUT

CB1

CY1

CR1

CY2

CB2

CR2

CB3

CR3

CY3

S53ABC

CY_IN

EXPDT1

VMUTE

CB_IN

CR_IN

CY_OUT

CR_OUT

EXPOE

OSDCK

OSDDT

EXPST

CB_OUT

V+5V

V-3C

V+3C

V+5V

V+5VV+3C

V-3CV-5VV-5.6V

V-3C

V+5.6V

TP5

47k

R1481

120k

R1452

47k

R1482

560

R1490

NM

R1491

NM

R1485

75

R1409

75

R1404

75

R1402

75

R1405

75

R1408

75

R1406

75

R1401

75

R1407

75

R1403

NM

R1492

0

R1486

47k

R1487

NM

R1461

47k

R1489

47k

R1483

0

R1511

0

*R1464

0

*R1474

2.7k

R1505

0

*R1468

0

R1504

NM

*R1412

NM

*R1413

0

R1503

100

R1501

47k

R1484

150k

R1451

150k

R1445

120k

R1446

47k

R1488

1k

R1453

1k

R1447

NM

R1467

NM

R1473

NM

R1463

0

R1510

NM

R1471

NM

R1465

NM

R1462

NM

R1472

NM

R1466

0

R1509

5.1k

R1506

5.1k

R1507

IC1405

BU4094BCFV

STB1DATA2CLOCK3Q1

4

5Q26

Q3

7Q48

VSS

9QS10

QS'

11Q812Q713Q614Q515OE16

VDD

IC1402

TC74LVX4052FT

0Y

12Y2

Y_COM33Y

4

51Y6

INH7VEE8GND

9B10A113X120X13

X_COM

141X152X16

VCC

IC1401

TC74LVX4052FT

0Y

1

2Y2Y_COM33Y

4

5

1Y6INH7VEE

8

GND

9B10A113X120X13

X_COM

141X152X16

VCC

*IC1403

TC74LVX4053FT

1Y10Y21Z3Z-COM

4

50Z6

INH

7

VEE8GND

9C10B11A120X131X14

X-COM15Y-COM

16

VCC

GNDV

GNDU

GNDVGNDV GNDHDGNDV

GNDU

NM

D1501

NM

D1502

NM

C1401

560p/50

C1482

0.22u/10

C1504

0.22u/10

C1501

0.22u/10

C1503

0.22u/10

C1502

0.01u/50

C1453

NM

C1405

NM

C1408

0.1u/16

*C1415

0.1u/16

*C1416

0.1u/16

C1411

0.1u/16

C1412

0.1u/16

C1413

0.1u/16

C1414

NM

C1465

NM

C1472

NM

C1471

NM

C1462

NM

C1466

NM

C1461

0.01u/50

C1452

NM

C1407

0.01u/50

C1446

0.01u/50

C1447

0.1u/16

C1481

NM

C1403

NM

C1402

NM

C1406

NM

C1409

NM

C1404

C1451

10u/50

C1445

10u/50

D1504

NM

D1503

NM

JA1401

AKB7201-A

8

7

6

5

JA1401

AKB7201-A

4

3

2

1

JA1402

AKB7201-A

8

7

6

5

R1502

180

2SA1576A(QR)

Q1404

2SA1576A(QR)

Q1405

NM

Q1406

NM

Q1407

NM

Q1408

2SA1576A(QR)

Q1504

Q1503 2SC4081(QR)

2SB1132(QR)

Q1502

Q1501 2SD1664(PQR)

C1475

0.01u/50

2.7k

R1508

CB

CR

Y

CB

CR

2/4B

1/4, 2/4

B

1/4, 4/4

1/4

B

1/4, 4/4

B

4/4

B

R1464,R1468,R1474

0

Ω

NM

AWK8058AWK8053

(Cb)

(Y)

(Cb)

(Y)

(Cb)

(Cr)

(Y)

(Cb)

(Y)

(Cr)

(Cb)

(Y)

(Cr)

(Cb)

(Y)

(Cr)

(Cb)

(Y)

(Cr)

(Cb)

(Y)

(Cr)

10.5 MAIN ASSY (3/4)

A

2 3 4

B

C

D

E

F

94

VSX-LX51

1

2 3 4

5

B 3/4

CY1

CB1

CR1

CY2

CB2

CR2

D53INH

D53

VMUTE

V-5V

V+5V

NM

R1425

75

R1426

NM

R1427

NM

R1429

75

R1428

75

R1430

1k

R1423

NM

R1420

NM

R1422

NM

R1421

NM

*R1411

150k

R1441

120k

R1442

1k

R1443

NJM2581M

IC1404

VIN1

1

VEE1

2

VIN2

3

VEE2

4

5

VIN3

6

VEE3

7

PowerSave

8

GND

9

VOUT3

10

V+3

11

VOUT2

12

V+2

13

VOUT1

14

V+1

GNDV

0.1u/16

C1426

0.1u/16

C1425

0.01u/50

C1442

0.01u/50

C1443

NM

C1427NMC1428NMC1429

C1420

100u/10

C1421

100u/10

C1422

100u/10

C1441

10u/50

C1423

100u/10

C1424

100u/10

*CN1401

NM

GNDV1V-5V 2

V+5V 3

D53

4

D53INH

5

GNDV

6

OUT Cr

7

GNDV 8

OUT Cb 9

GNDV 10

OUT Y 11

GNDV

12

IN2 Cr

13

GNDV

14

IN2 Cb 15

GNDV 16

IN2 Y 17

GNDV 18

IN1 Cr 19

GNDV

20

IN1_Cb 21

GNDV 22

IN1_Y 23

47k

*R1514

0.1u/16

C1506

47k

R1516

0.1u/16

*C1505

V+5US

5.6k

R1515

TEMP1

TEMP2

GNDU

*CN111

KM200NA2

1

POSISTER_1

2

GNDU

CN112

KM200NA2

1

POSISTER_2

2

GNDU

*CN119

KM200NA3

1

POSISTER_3

2

GNDU

3

GNDU

*R1517

5.6k

*R1518

47k

TEMP3

*C1507

0.1u/16

JA1402

AKB7201-A

4

3

2

1

2SA1576A(QR)

Q1403

DTC124EUA

*Q1505

DTC124EUA

Q1507

DTC124EUA

*Q1509

DTA124EUA

*Q1506

DTA124EUA

Q1508

DTA124EUA

*Q1510

*R1513

3.9k

Y

CB

CR

R1411 - R1413

0

Ω

NM

C1415 - C1416 IC1403

NM

CR

Y

CB

CN111

3.9K

Ω

R1513,R1517

KM200NA2

CN119

KM200NA3

C1505,C1507 Q1505,Q1506 Q1509,Q1510

DTC124EUA DTA124EUA

NMCN1401

R1514,R1518

47K

Ω

AWK8058AWK8053

TC74LVX4053FT

0.1μ/16

POSISTER1-3

0.1μ/16

B 3/4

MAIN ASSY (VSX-LX51 : AWK8053) (VSX-1018AH : AWK8058)

4/4B

1/4, 2/4

B

CN7001

W

CN7003

Y

CN7002

X

(Cb)

: Video Signal Route (Component Cb ch)

(Y)

: Video Signal Route (Component Y ch)

(Cr)

: Video Signal Route (Component Cr ch)

(Y)

(Cb)

(Y)

(Cr)

(Y)

(Cb)

(Y)

(Cr)

(Cb)

(Y)

(Cr)

(Cb)

(Y)

(Cr)

(Cb)

(Y)

6 7 8

A

B

C

D

VSX-LX51

5

6 7 8

E

F

95

1

B 4/4

SCLK

EVENT_RDY

FANDRV

FANSTOP

SIRIUS_RST

XMMUTE

USBPWR

USBRST

USBCTL

DIRRST

DIRDO

UASW

XFLAG

DSDSW

1W_WUP

WATTINZ2SW

HDMI_SW

NECK_6

NECK_8

OLDET

USB_SW

DSPBUSY

DS0SS

12VTRG1

MRDT

12VDET

EVENT_DI

EVENT_CLK

EVENT_DO

CECHOTPLUG

CECINOUT

SD1

SD2

SD3

HDSPDIF

232C_SW3

DS1SS

DSPMODE0

DSPMODE1

DSP_OECMUTE

DSPBUSY

ROME

DIRDO

DIRRST

DIRCS

HDMI_SW

USB_SW

Z2SW

DSDSW

DACLAT

DACCSF

DACCSBIWL2

XMSCRATE

DSPREQ

Z2_DACRST

DACCSBIWL2

DACCSF

HP_DET

CNVSS

UASW

XFLAG

USBCTL

USBPWR

USBRST

Z2_DACRST

DSPDI

DSPDO

DSPCLK

DSPRST

DS1SS

DSPMODE0

DSPMODE1

232C_SW3

DSP_OECMUTE

TDO

TCK

TDI

TCE

MICDET

XMERR

SCLK

RESET

SD0

SCKMSMCK

DIRCS

HTBCK

HDMIRDY3

HTMCK

XSMUTE

IPIFSW

DIRERR

OSDCK

SIMUKE1

SIMUKE2

HTFD

HTLR

OSDRST

SR+RX/USB_DAI

USB_DAO

M232CRX

232C_CTS

232C_RX

232C_SW2

232C_SW1

M232CCTS

SY_OUT

SC_OUT

CV_OUT

XM/SIRI_RX

HDMUTE

XMLSDP_RDSCK

XMLNK_RDSDT

XM/SIRI_SW

HDRST

HDDI

HDSCK

MRSP

ADMD

DSP_MUTE

EXPOE

M232CTX

EXPST

HDDO3

OSDCS

OSDDT

HDMIREQ

12V_ON

12V_ON1

HTFD

HDMIREQ3

SY_IN

HDDI3

HDSCK3

XMRST

HDRST3

HDMIRDY

XM/SIRI_TX

12V_ON

12V_ON1

SIMUKE1

CV_IN

HDDO

M232CRX

SC_IN

HTLR

M232CTX

WUP

232C_TX

FMDET

SR+TX/USB_DAO

M232CCTS

HTMCK

HTBCK

USB_DAI

SIMUKE2

DIRERR

ASS7004

*X261

CSS1716-A

X101

1

2

3

V+5D

V+13UN

V+5UM

V+5US

V+5UM

V+13UN

V+12V

100

R164

100

R129

100k

R122

100

R157

100

R108

NM

R1512

100

R152

100

R126

100

R107

100

R117

0

R115

100

R125

100

R130

100

R162

100

R101

100

R116

NM

R113

5.1k

R112

47k

R114

1K

*R263

1K

*R262

NM

R134

100k

*R177

100k

R178

NM

R169

0

R1940R1920R193

100

R110

NM

*R183

NM

*R181

47k

*R182

NM

R261

100

R168

100

R105

NM

*R172

100

R156

100

R175

100

R170

NM

*R173

470k

R167

100

R118

100

R104

100

R171

100

R109

100

R202

100

R153

100

R174

NM

R132

NM

R123

NM

R124

NM

R133

100k

R135

100k

R131

100k

R176

100k

R127

100k

R160

100k

R158

100k

R128

100k

R166

100k

R281

100k

R185

100k

R201

4.7k

R207

10k

R208

470

R206

470

R205

47K

*R264

NM

R161

100

R119

100

R111

100

R121

100

R163

100

R155

100

R159

100

R165

100

R106

100

R103

100

R120

100

R154

100

R102

IC101

PEG479C8

P96/ANEX1/TXD4/SDA4/SRXD4/CAN1OUT

1

P95/ANEX0/CLK4/CAN1IN/CAN1WU

2

P94/DA1/TB4IN/CTS4/RTS4/SS4

3

P93/DA0/TB3IN/CTS3/RTS3/SS3

4

P92/TB2IN/TXD3/SDA3/SRXD3/OUTC20/IEOUT/ISTXD2

5

P91/TB1IN/RXD3/SCL3/STXD3/IEIN/ISRXD2

6

P90/TB0IN/CLK3

7

P146/INT8

8

P145/INT7

9

P144/INT6

10

P143/INPC17/OUTC17

11

P142/INPC16/OUTC16

12

P141/INPC15/OUTC15

13

P140/INPC14/OUTC14

14

BYTE

15

CNVSS

16

P87/XCIN

17

P86/XCOUT

18

RESET

19

XOUT

20

VSS1

21

XIN

22

VCC1_1

23

P85/NMI

24

P84/INT2

25

P83/INT1/CAN1IN/CAN0IN

26

P82/INT0/CAN1OUT/CAN0OUT

27

P81/TA4IN/U/INPC15/OUTC15/CTS5/RTS5/RTP23

28

P80/TA4OUT/U/ISRXD0/RXD5

29

P77/TA3IN/CAN0IN/INPC14/OUTC14/ISCLK0/CLK5/PTP22

30

P76/TA3OUT/CAN0OUT/INPC13/OUTC13/ISTXD0/TX05

31

P75/TA2IN/W/INPC12/OUTC12/ISRXD1/RTP21

32

P74/TA2OUT/W/INPC11/OUTC11/ISCLK1/RTP20

33

P73/TA1IN/V/CTS2/RTS2/SS2/INPC10/OUTC10/ISTXD1

34

P72/TA1OUT/V/CLK2

35

P71/TA0IN/TB5IN/RXD2/SCL2/STXD2/INPC17/OUTC17/OUTC22/ISRXD2/IEIN/RTP03

36

P70/TA0OUT/TXD2/SDA2/SRXD2/INPC16/OUTC16/OUTC20/ISTXD2/IEOUT/RTP02

37

P67/TXD1/SDA1/SRXD1

38

VCC1_239P66/RSD1/SCL1/STXD1

40

VSS241P65/CLK142P64/CTS1/RTS1/SS1/OUTC21/ISCLK2

43

P63/TXD0/SDA0/SRXD0/IRDAOUT

44

P62/RXD0/SCL0/STXD0/STXD0/IRDAIN45P61/CLK0/RTP0146P60/CTS0/RTS0/SS0/PTPD0

47

P137/OUTC2748P136/OUTC21/ISCLK2

49

P135/OUTC22/ISRXD2/IEIN50P134/OUTC20/ISTXD2/IEOUT

51

P57/RDY52P56/ALE53P55/HOLD54P54/HLDA/ALE55P133/OUTC2356VSS3

57

P132/OUTC26

58

VCC2_159P131/OUTC25

60

P130/OUTC24

61

P53/CLKOUT/BCLK/ALE

62

P52/RD

63

P51/WRH/BHE64P50/WRL/WR

65

P12766P12667P12568P47/CS0/A2369P46/CS1/A2270P45/CS2/A2171P44/CS3/A20

72

P43/A19

73

VCC2_2

74

P42/A19

75

VSS4

76

P41/A17

77

P40/A16

78

P37/A15(/D15)

79

P36/A14(/D14)

80

P35/A13(/D13)

81

P34/A12(/D12)

82

P33/A11(/D11)

83

P32/A10(/D10)

84

P31/A9(/D9)

85

P124

86

P123/CTS6/STS6

87

P122/RXD6

88

P121/CLK5

89

P120/TXD6

90

VCC2_3

91

P30/A8(/D8)

92

VSS5

93

P27/A7(/D7)/AN27

94

P26/A6(/D6)/AN26

95

P25/A5(/D5)/AN25

96

P24/A4(/D4)/AN24

97

P23/A3(/D3)/AN23

98

P22/A2(/D2)/AN22

99

P21/A1(/D1)/AN21

100

P20/A0(/D0)/AN20

101

P17/D15/INT5

102

P16/D14/INT4

103

P15/D13/INT3

104

P14/D12

105

P13/D11

106

P12/D10

107

P11/D9

108

P10/D8

109

P07/D1/AN07

110

P06/D6/AN06

111

P05/D5/AN05

112

P04/D4/AN04

113

P114

114

P113/INPC13/OUTC13

115

P112/INPC12/OUTC12/ISRXD1

116

P111/INPC11/OUTC11/ISCLK1

117

P110/INPC10/OUTC10/ISTXD1

118

P03/D3/AN03

119

P02/D2/AN02

120

P01/D1/AN01

121

P00/D0/AN00

122

P157/AN157/CTS6/RTS6

123

P156/AN156/CLK6

124

P155/AN155/RXD6

125

P154/AN154/TXD6

126

P153/AN153/CTS5/RTS5

127

P152/AN152/ISRXD0/RXD5

128

P151/AN151/ISCLK0/CLK5

129

VSS6

130

P150/AN150/ISTXD0/TXD5

131

VCC1_3

132

P107/AN7/K13/RTP33

133

P106/AN6/K12/RTP32

134

P105/AN5/K11/RTP31

135

P104/AN4/K10/RTP30

136

P103/AN3/RTP13

137

P102/AN2/RTP12

138

P101/AN1/RTP11

139

AVSS

140

P100/AN0/RTP10

141

VREF

142

AVCC

143

P97/ADTRG/RX04/SCL4/STXD4

144

*IC261

LC72725KM

RDS-ID/READY

1

RDDA

2

VREF

3

MPXIN

4

5

Vdda

6

Vssa

7

FLOUT

8

CIN9TEST

10

MODE

11

Vssd

12

Vddd

13

XIN

14

XOUT

15

RST

16

RDCL

BU4842F

IC201

VOUT

1

VDD

2

NC

3

GND

4

GNDD

GNDU

GNDHD

GNDD

GNDU

GNDHD

GNDD

GNDU

GNDHD

GNDAV GNDU

NM

L261

1u/16

C201

0.1u/16

C123

NM

C263NMC262

CH 27p/50

*C269

1000p/50

*C270

4700p/50

*C266

560p/50

*C267

NM

C265

0.01u/50

C202

0.1u/16

C109

NM

C103

CH 27p/50

*C268

0.1u/16

C101

0.01u/50

C108

0.1u/16

C106

0.1u/16

C105

0.1u/16

C104

NM

C125

NM

C121NMC120

1000p/50

C124

*C271

100/10

*C264

10/50

C102

100u/16

CN117

VKN1414-A

1

2

3

4

5

6

7

8

9

10

DSP1 SS

8

DSP0 MODE

9

DSP1 MODE

10

DSP0 MUTEO

11

DSP0 BUSYO

12

DAC LATCH F

14

ADC RESET

15

DAC LATCH S/C/SB

16

DIR DO

17

DIR ERR

18

DIR RESET

19

DIR CS

20

HDMI SW

21

USB SW

22

ZONE2 SW

23

DSD SW

24

GNDD

25

MCKO

26

GNDD27BCKO

28

FDTO

29

LRCKO

30

ROM WE

13

AKP3092-A

CN101

V+13UN(V+12UN)

1

GNDHD2GNDHD

3

V+13UN(V+12UN)4V+13UN(V+12UN)

5

HDSPDIF/DSDL2

6

SD3/DSDL2

7

SD2/DSDL1

8

SD1/DSDR1

9

SD0/DSDL0

10

LCKI/DSDR0

(WS/DR0)

11

GNDHD

12

GNDHD

14

MCKI(MCK)

15

GNDHD

16

HDMUTE

17

HDREQI

18

HDREQO

19

HDDI

20

HDDO

21

HD SCK

22

HD RST

23

CEC I/O

24

CEC HOTPLUG

25

HTLRCK

26

HTFD(HTDATA)

27

HTBCK

28

HTMCK

29

GNDHD

30

BCKI(SCK/PCLK)

13

SC OUT(VCC)

14

GNDHD

15

SY OUT(VCY)

16

GNDHD

17

SC IN(VCC)

18

GNDHD

19

SY IN(VCY)

20

GNDHD

21

CV OUT(VCV)

22

GNDHD

23

CV IN(VCV)

24

12V ON

25

232C SW

26

232C CTS

27

232C TX

28

232C RX

29

GNDHD

30

*CN118

12345

678

9

TEMP1

TEMP3

C141

0.1u/16

C142

470p/50

C140

470p/50

*R180

47k

R1520

100

R1519

100

ADX7652-A

JP113

1

V+13UN

2

GNDHD

3

GNDD

4

V+5D

BR24L64F-W

IC202

A0

1

A1

2

A2

3

GND

45

SDA

6

SCL

7

WP

8

VCC

DTC124EUA

Q281

DTA124EUA

Q282

C425

NM

C451

0.1u/16

C453

0.1u/16

C454

1000p/50

C452

1000p/50

GNDU

R451

100

R452

100

R461

100

R462

100

R463

100

R464

100

C461

0.1u/16

C463

0.1u/16 C464

1000p/50

L461

CTF1386-A

L462

CTF1386-A

(CNVSS)

24MHz

R172,R173 R177 100K

Ω

NM

(NC)

(DAC RESET)

*1

service connector

LX51

1018AH

AWK8053

AWK8058

/HYSXJ5

/HYSXJ5-S

/HYSXJ5-K

R180R181R182R183

SIMUKE1 SIMUKE2

NM NM

NM

47K 47K

47K 47K 47K

4/5C

CN703

4/5C

CN702

2/4

B

2/4B

2/4

B

1/4, 3/4B

2/4B

1/4

B

2/4

B

CN1001

G

CN1001

F 1/2

CN1002

G

CN1002

F 1/2

CN4251

V

2/4B1/4B

2/4

B

1/4

B

2/4

B

2/4

B 2/4B

2/4

B

1/4

B

1/4, 3/4

B

2/4

B

1/4

B

2/4

B

1/4B

2/4

B

2/4B

XKP3064

(SY)

(SC)

(SY)

(SC)

(CV)

10.6 MAIN ASSY (4/4)

A

2 3 4

B

C

D

E

F

96

1

2 3 4

VSX-LX51

5

B 4/4

XMSW

XMANT

XMDT4M

XMPWR

ROME

XMRST

NECK6

NECK8

NECK_6

NECK_8

RY_B

RY_C/R

RY_A

RY_HP

RY_VL

DCPRO

LSSN

12VTRG2

TDO

TCK

TDI

SIRIUS_RST

EVOLCK

MRDT

232CDET

SROUT

RMC

SRIN

MRIN

12VTRG1

12VDET

12VTRG2

-VF

AC2

AC1

FANSTOP

FANDRV

DSPDI

DSPCLK

DSPDO

DSPREQ

DSPRST

DS0SS

RY_AC

HDSPDIF

SD3

SD2

SD1

SD0

MS

SCK

MCK

MRIN

SRIN

RMC

SROUT

232CDET

1W_WUP

CECHOTPLUG

FL_EN

FL_DT

FL_CLK

FL_RST

AC1

AC2

-VF

RY_AC

EVENT_RDY

EVENT_DO

EVENT_DI

EVENT_CLK

EVENT_REQ

EVENT_RST

CECINOUT

FL_RST

EVOLCK

FL_EN

FL_DT

FL_CLK

EVOLDT

EVENT_RST

EVENT_REQ

TCE

EVOLCK EVOLDT LSSN

RY_C/R

RY_A

HP_DET

WATTIN

RY_B

RY_HP

RY_VL

NECK6

OLDET

DCPRO

MICDET

NECK8

XMLNK_RDSDT

XMLSDP_RDSCK

LOW_POW

XMRMUTE

E232CRX

232C_TX

SR+/USB_SW

SIRIUS_TX

SR+TX

CY_OUT

CB_OUT

CR_OUT

XSBMUTE

XMRST

XAMUTE

FMDET

WUP

FV

XSDET

SIRIUS_RX

CR_IN

SR+RX

CB_IN

CY_IN

232C_CTS

232C_RX

E232CTX

SBMUTE

AMUTE

MRMUTE

IPIFSW

XMLSDP_RDSCK

XMLNK_RDSDT

V+5US

V+5.6U

V+5AD

V+12V

V+5D

V+5.6U

V+5.6ST

V+5US

V+5.6V

V+5AD

V+5.6U

V+5UM

V+5.6ST

V+5UMIN V+5UM

V+5.6ST

V-5.6V

100

R137

NM

R189

100

R142

0

R179

NM

*R146

100

R149

100

R139

1M

R291

1M

R292

0

R196

NM

R296

22k

R297

NM

R293

NM

R295NMR294

0

R1980R197

NM

R195

0

R191

0

R190

100

R141

100k

R140

NM

R143

NM

R144

NM

R145

NM

R147

NM

R148

NM

R151

NM

R150

100

R138

100

R136

JP117

PF09PG-R35

V+5.6U

1

GNDAD2GNDAD

3

V+5AD

4

V+5.6V

5

GAV6GAV

7

GAV

8

V-5.6V

9

JP116

PF07PG-R40

FANDRIVE

1

FANSTOP

2

AC13AC24-VF

5

GNDU

6

GNDU

7

JH101

VEF1040-A

GNDAD

GNDV

GNDUGNDD

GNDV

GNDAD

GNDV

GNDU

GNDHD

GNDU

GNDSR

GNDU

GNDT

GNDD

GNDHD

GNDAV

GNDSR

GNDU

ATL7002-A

L101

ATL7002-A

L196

UDZS5R1(B)

D296

RB520S-30

D305

0.1u/16

C129

0.1u/16

C130

0.1u/16

C132

NM

C137

NM

C138

0.047u/25

C292

0.047u/25

C291

NM

C119

NM

C136

NM

C135

0.01u/50

C118

0.01u/50

C116

NM

C111

NM

C114

NM

C110

NM

C139

0.1u/16

C131

0.1u/16

C107

NM

C134

0.1u/16

C133

NM

C128

NM

C127

C115

NMC113NMC112

NM

C296

10u/50

C117

100u/16

CN109

52044-3345

MR IN

1

SR IN

2

RMC

3

SR OUT

4

GNDSR

5

232C DET

6

232C RX

7

232C TX

8

1W WUP

9

RY AC

10

EVENT RDY

11

EVENT DO

12

EVENT DI

13

EVENT CLK

14

EVENT REQ

15

EVENT RST

16

CEC IN/OUT

17

CEC HOTPLUG

18

TEMP2

19

DISP CE

20

DISP DI

21

DISP CLK

22

DISP RST

23

V+5.6ST

24

V+5.6ST

25

GNDU

26

GNDU

27

GNDU

28

V+5.6U

29

V+5.6U

30

-VF

31

FL AC2

32

FL AC1

33

CN110

CKS3376-A

LSSN

1

VLDT

2

VLCK

3

GNDU

4

GNDT

5

FMDET

6

GNDT

7

TDO

8

TCLK

9

TDI

10

TCE

11

CN116

52151-0610

GNDST

1

GNDST

2

GNDST

3

V+5.6ST

4

RY_AC

5

W.UP

6

AKP3092-A

CN104

GNDD

1

DSP DI

2

DSP CLK

3

DSP0 DO

4

DSP0 REQ

5

DSP0 RESET

6

DSP0 SS

7

AKP3092-A

CN102

GNDHD

1

Cr OUT(VCCr)

2

GNDHD

3

Cb OUT(VCCb)

4

GNDHD

5

Y OUT(VCCY)

6

GNDHD

7

Cr IN(VCCr)

8

GNDHD

9

Cb IN(VCCb)

10

GNDHD

11

Y IN(VCCY)

12

GNDHD

13

XKM3006-A

CN103

GNDAD (GNDA(DAC))

1

GNDAD (GNDA(DAC))

2

V+5AD

3

GNDU(UGRTN)

4

GNDD(DGRTN)

5

GNDD(DGRTN)

6

GNDD(DGRTN)

7

V+5D(DSP)

8

V+5D(DSP)

9

V+5D(USB)

10

IPIF_SW

11

GNDD

12

GNDD

14

SD3/DSDR2

15

SD2/DSDL1

16

SD1/DSDR1

17

SD0/DSDL0

18

LCKI/DSDRO

19

BCKI

20

GNDD

21

MCKI

22

GNDD

23

SPDIF/DSDL2

13

XKM3005-A

CN106

GNDU

1

GNDU

2

232C TXD

3

232C RXD

4

232C CTS

5

232C DET

6

GNDSR

7

GNDSR

8

SR OUT

9

RMC

10

SR IN

11

SR RX

12

MR IN

14

GNDU

15

12V TRG1

16

12V DET

17

12V TRG2

18

V+5_6U

19

SR TX

13

XKM3005-A

CN108

RYCS

1

RYA

2

WATTS

3

HP DET

4

RYB

5

RYHP

6

RYVL

7

NECK8

8

NECK6

9

OLDET

10

DCDET

11

V+5UM

12

MICDET

14

XPROTECT

15

GNDAV

16

FV

17

GNDAV

18

V+12A

19

GNDU

13

XKM3009-A

CN107

SIRIUS TX

1

SIRIUS RX

2

SIRIUS RST

3

GNDU

4

MRVL CK (NC)

5

MRVL DT

6

MRMUTE

7

GNDU

8

GNDU

9

AMUTE

10

SBMUTE

11

TEMP2

D301

NM

D302

NM

D303

1SS355

UMB1N

Q101

(1/2)

UMB1N

Q101

(2/2)

UMB1N

Q102

(1/2)

UMB1N

Q102

(2/2)

DTA124EUA

Q104

DTA124EUA

Q105

D291

DAP202U

D292

DAN202U

D304

DAN202U

R422

1M

C421

0.047u/25

D421

NM

R421

47k

XPROTECT

V+5US

XPROTECT

C126

0.01u/50

DTA124EUA

*Q103

C431

NM

R431

0

R432

NM

C432

0.1u/16

C462

0.1u/16

R441

NM

C471

0.1u/16 C472 1000p/50

C465

1000p/50

C435

NM

Q103 RT1P241M

*2

R146

NM

*2

B 4/4

MAIN ASSY (VSX-LX51 : AWK8053) (VSX-1018AH : AWK8058)

2/4B

2/4

B

4/5C

CN704

CN3003

M

CN4801

E

CN4802

E

CN4803

E

2/2A

CN506

CN4004

U

CN4003

U

JH3701

T

3/4B

2/4B

3/4

B

2/4

B

1/4

B

2/4

B

(SY)

: S-Video Signal Route (Y ch)

(CV)

: Video Signal Route (Component Video)

(SC)

: S-Video Signal Route (C ch)

(FV)

: Video Signal Route (Video)

(FV)

(Cb)

(Cr)

(Cb)

(Cr)

(Y)

(Cb)

: Video Signal Route (Component Cb ch)

(Y)

: Video Signal Route (Component Y ch)

(Cr)

: Video Signal Route (Component Cr ch)

6 7 8

A

5

VSX-LX51

6 7 8

B

C

D

E

F

97

1

C 1/5

DIRERR3

DIRCS

DSPCLK

DSPDI

DIRDO3

DAUX

DIRB

DIRL

DIRRST

RX3/DSDL2

RX7

DIRM

RX5

RX6

RX4

DIRD

TX0

TX1

XMMUTE3

*R164

0

GCH

AK4114VQ

IC101

DIR&DIT

IPS0/RX4

1

NC_AVSS1

2

DIF0/RX5

3

TEST2

4

DIF1/RX6

5

NC_AVSS2

6

DIF2/RX7

7

IPS1/IIC

8

P/SN

9

XTL0

10

XTL1

11

VIN

12

TVDD13NC_DVSS114TX015TX116BOUT17COUT18UOUT19VOUT20DVDD21DVSS22MCKO123LRCK

24

SDTO

25

BICK

26

MCKO2

27

DAUX

28

XTO

29

XTI

30

PDN

31

CM0/CDTO/CAD1

32

CM1/CDTI/SDA

33

OCLS1/CCLK/SCL

34

OCKS0/CSN/CAD0

35

INT0

36

INT1

37

AVDD

38R39

VCOM

40

AVSS

41

RX0

42

NC_AVSS3

43

RX1

44

TEST1

45

RX2

46

NC_AVSS4

47

RX3

48

V5D V 5D1

L101

QTL1013-A

C102

0.1u/10

YB

TP122

47u/6.3

C103

V3D

L102

QTL1013-A

V3D2

C104

470p/50

CH(1608)

C106

0.1u/10

YB

TP126

TP134

TP133

R112

NM

R111

47

R110

22

R109

100

R117

NM

TP132

TP131

TP130

C111

0.1u/10

YB

GN DD

C109

1000p/50

YB

R108

10k

47u/6.3

C110

C108

0.1u/10

YB

C107

470p/50

CH(1608)

L103

NM

R116

0

(1608)

V3D

TP128

R106

18k

F%

C105

0.47u/10

YB(1608)

R105

10

TP125

C112

NM

R118

NM

(1608)

L104

NM

R120

75

C114

0.01u/16

YB

DC

C101

NM

DA

TP117

V3D1

TP129

R104

10

C115

0.01u/16

YB

R121

75

L105

NM

R119

NM

(1608)

C113

NM

TP124

R103

100

R113

100

R114

100

R115

100

R107

22

C119

0.1u/10

YB

R122

100

V5DV5D2

C120

NM

(1608)

C122

NM

(1608)

100u/16

C125

L106

QTL1013-A

R123

100

C118

0.1u/10

YB

*R124

100

*C117

0.1u/10

YB

R125

NM

C116

0.1u/10

YB

C121NMC123NMC124

NM

TP114

TP113

TP102

TP103

TP101

TP108

TP107

TP106

TP104

GCH

R126

NM

R127

NM

C126

NM

YB

GN DD

TP109

TP110

OSCD

TP140

TP142

TP143

TP141

TP144

JA101

AKB7173-A

4

3

2

1

JA102

GP1FAV51RKBF

1

2

3

JA103

GP1FAV51RKBF

1

2

3

*JA104

GP1FAV51RKBF

1

2

3

JA105

GP1FAV51TK0F

1

2

3

JA106

NM

(GP1FAV51TK0F)

1

2

3

C149

NM

C127

NM

(1608)

C128

NM

(1608)

C129

0.1u/16

(1608)

C130

470p/50

(1608)

R171

NM

(1608)

R172

NM

(1608)

R173

NM

(1608)

R174

NM

(1608)

R176

NM

R175

NM

R177NMR178

NM

COAX

RX0

RX1

DIGITAL

IN 2

DIGITAL

IN 3

DIGITAL

OUT

DIGITAL

IN 1

COAX1

COAX2

DIGITAL

OUT FOR

ZONE3

(HDMI)

(Front)

GN DD

2/5, 3/5, 4/5, 5/5C

3/5

C

(D)

10.7 DSP & USB ASSY (1/5)

A

2 3 4

B

C

D

E

F

98

VSX-LX51

1

2 3 4

5

C 1/5

HFDT/DSDL0

S2DT

FDTI/DSDFL

S2BC LCKI

ULRS1DT

S2DT

USBSW

S1BC

S2BC

UMCK

S1DT

DIRM

DIRL

S1BC

HMCKBCKI

HBCK

HDSW

DSDLFE

RX3/DSDL2

CDTI/DSDSL

HCDT/DSDR1

HLR/DSDR0

HSDT/DSDL1

DSDC

HLR/DSDR0

SDTI/DSDFR

HSDT/DSDL1

SDTI/DSDFR

DSDSW

MCLK

S2MC

S2LR

S2MC

S1MC

S2LR

S1LR

S1MC

DIRB

UDT

UBCK

CDTI/DSDSL

DIRD

HLCK

S2MC

S2LR

S2DT

S2BC

S1MC

S1LR

S1DT

S1BC

HLCK

LCKI

FDTI/DSDFL

BCKI

MCLK

DSDLFE

CDTI/DSDSL

SDTI/DSDFR

DSDC

TC74VHC157FTS1

IC202

Switch for USB

1

1A

2

1B

3

1Y

4

5

2A

6

2B

7

2Y

8

GND93Y

10

3B

11

3A

12

4Y

13

4B

14

4A

15

XST

16

VCC

TC74LCX157FTS1

IC203

Switch for HDMI

SEL

1

1A

2

1B

3

1Y

4

5

2A

6

2B

7

2Y

8

GND93Y

10

3B

11

3A

12

4Y

13

4B

14

4A

15

ST

16

VCC

R212

220

R213

220

C205

0.1u/10

YB

C206

470p/50

YB

GN DD

R226 220

V3D

L203

QTL1013-A

R210

100

R211

100

R224 100

R225 100

R204

NM

R205

NM

R237

NM

R238

NM

C203

0.1u/10

YB

C204

470p/50

YB

GN DD

L202

QTL1013-A

V3D

V3D5

*R202*R203

*R235

0

*R236

0

TP201

TP202

TP203

TP204

TP205

TP206

TP207

TP208

V3D6

TP212

TP211

R239

NM

GN DD

C208

NM

V3D

TP213

GN DD

C207

NM

YB

V3D7

L204

NM

IC204

NM

1G

1

1A

2

1Y

3

2G

4

5

2A

6

2Y

7

GND

8

3Y

9

3A

10

3G

11

4Y

12

4A

13

4G

14

VCC

V3D8

R214

NM

R215

NM

R217

NM

R216

NM

R228

NM

R229

NM

R220

100

R232

100

GN DD

C210

NM

C209

0.1u/10

YB

IC205

TC74VHC125FTS1

1G

1

1A

2

1Y

3

2G

4

5

2A

6

2Y

7

GND

8

3Y

9

3A

10

3G

11

4Y

12

4A

13

4G

14

VCC

V3D

L205

QTL1013-A

R221

100

R219

100

R230

100

R218

100

TP214

R231

100

R233

100

R206

0

R207

0

R234

0

R201

10k

V3D

GN DD

TP209

TP216

TP217

TP218

TP219

TP220

TP221

TP222

TP223

TP224

DTC124EUA

Q201

R227

39

SEL

H

L

Y

HDMI

DIR/XM/USB

L

SEL

H

DIR/XM

Y

USB

DIR

XM

Y

L

H

SEL

BCK

LRCKMCK

DATABCK

LRCKMCK

DATA

L

DSDSWHSIGNAL

DSD

I2S

SELECT

C 1/5

DSP & USB ASSY (AWX9176)

(D)

: Audio Data Route

(D)

6 7 8

A

5

VSX-LX51

6 7 8

B

C

D

E

F

99

1

C 2/5

A4

A5

A7

A9

LA2

LA0

LAD7

LAD6

LAD5

LAD3

LAD2

LAD0

LOE/LSDRAS

LAD1

LAD16

A15

A14

A13

A12

A11

LAD20

A9

A10

LAD19

LAD18

A8

A7

A6

A5

A4

A3

LAD11

LAD12

LAD13

LAD14

LA1LA2

A11

A12

A13

A14

LALE

LAD21

LAD17

A8

A6

LSDA10

LA0

A3

LA1

LCKE

LWE/LSDQM

LOE/LSDRAS

LCLK

RAMCS

LSDCAS

LSDWE

LALE

LAD7

LAD6

LAD10

LAD5

A10

A9

A8

A7

A6

A5

A4

A3

LAD9

LAD4

LALE

LAD8

LAD3

A17

ROMCE

LAD4

LAD15 A15

LWE/LSDQM

ROMWE

ROMCE

LAD16

LAD17

A16

A17

LAD0

LAD1

LAD2

LAD3

LAD4

LAD5

LAD6

LAD7

LSDCAS

RAMCS

LOE/LSDRAS

LSDWE

A16

LAD15

LAD14

LAD13

LAD12

LAD11

LAD10

LAD9

LAD8

LWE/LSDQM

LCKE

A11

LWE/LSDQM

LCLK

IC302

S29AL016D70TFI010

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

GN DD

C311

0.1u/10

C321

GN DD

L321

QTL1013-A

V3D

C341

0.1u/10

L341

QTL1013-A

V3D

V3DB

GN DD

R341

47

R343

100

C317

0.1u/10

C342

470p/50

C313

0.1u/10

C312

470p/50

C318

0.1u/10

C314

0.1u/10

C322

TP303

TP305

TP308

TP306

TP307

TP309

TP310

TP304

TP302

TP301

TP314

L331

QTL1013-A

C331

0.1u/10

R333

100

V3D

R334

100

R331

47

C332

470p/50

V3DA

TP313

GN DD

R332

47

C315

470p/50

C316

0.1u/10

V3DC

L311

QTL1013-A

V3D

V3DD

DC

IC305

TC7SH32FUS1

4

1

2

5

3

R353

47

C352

NM

C351

0.1u/10

R351

4.7k

R352

0

GN DD

TP311

TP312

R342

47

R344

100

IC301

HY57V641620FTP-6

VDD1

1

DQ0

2

VDDQ1

3

DQ1

4

5

DQ2

6

VSSQ1

7

DQ3

8

DQ4

9

VDDQ2

10

DQ5

11

DQ6

12

VSSQ2

13

DQ7

14

VDD2

15

LDQM

16

/WE

17

/CAS

18

/RAS

19

/CS

20

BA0

21

BA1

22

A10/AP

23

A0

24

A1

25

A2

26

A3

27

VDD328VSS1

29

A4

30

A5

31

A6

32

A7

33

A8

34

A9

35

A11

36

NC1

37

CKE

38

CLK

39

UDQM

40

NC2

41

VSS2

42

DQ8

43

VDDQ3

44

DQ9

45

DQ10

46

VSSQ3

47

DQ11

48

DQ12

49

VDDQ4

50

DQ13

51

DQ14

52

VSSQ4

53

DQ15

54

VSS3

C319

470p/50

C320

0.1u/10

R311

22

IC303

TC74LCX573FTS1

OE

1

D0

2

D1

3

D2

4

5

D3

6

D4

7

D5

8

D6

9

D7

10

GND11LE

12

Q7

13

Q6

14

Q5

15

Q4

16

Q3

17

Q2

18

Q1

19

Q0

20

Vcc

IC304

TC74LCX573FTS1

OE

1

D0

2

D1

3

D2

4

5

D3

6

D4

7

D5

8

D6

9

D7

10

GND11LE

12

Q7

13

Q6

14

Q5

15

Q4

16

Q3

17

Q2

18

Q1

19

Q0

20

Vcc

64M SDRAM

FLASH ROM

LATCH

A15

A14

A13

A12

A11

A10

A9

A8

A19

NC10

/WE

/RESET

NC13

NC14

RY_/BY

A18

A17

A7

A6

A5

A4

A3

A2

A1

A0

/CE

VSS_27

/OE

DQ0

DQ8

DQ1

DQ9

DQ2

DQ10

DQ3

DQ11

VCC_37

DQ4

DQ12

DQ5

DQ13

DQ6

DQ14

DQ7

DQ15_A-1

VSS_46

/BYTE

A16

0.1u/10

NM

1/5, 3/5, 4/5, 5/5C

10.8 DSP & USB ASSY (2/5)

A

2 3 4

B

C

D

E

F

100

VSX-LX51

1

2 3 4

Pioneer VSX-1018-AHK, VSX-1018-AHS, VSXLX-51 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

VSX-LX51

SAFETY INFORMATION

CONTENTS

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

1.2 CAUTION

2. SPECIFICATIONS

2.1 ACCESSORIES

2.2 SPECIFICATIONS

2.3 PANEL FACILITIES

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

3.2 PCB LOCATIONS

3.3 JIGS LIST

4. BLOCK DIAGRAM

4.1 OVERALL WIRING DIAGRAM

4.2 BLOCK DIAGRAM FOR AUDIO BLOCK

4.3 BLOCK DIAGRAM FOR VIDEO BLOCK

4.4 BLOCK DIAGRAM FOR HDMI FOR VSX-LX51

4.5 BLOCK DIAGRAM FOR HDMI FOR VSX-1018AH

4.6 BLOCK DIAGRAM FOR USB BLOCK

4.7 BLOCK DIAGRAM FOR U-COM

4.8 BLOCK DIAGRAM FOR POWER SUPPLY BLOCK

5. DIAGNOSIS

5.1 DIAGNOSIS FLOWCHART

5.2 CIRCUIT DESCRIPTION

6. SERVICE MODE

6.1 TEST MODE

7. DISASSEMBLY

8. EACH SETTING AND ADJUSTMENT

8.1 HOW TO UPDATE FIRMWARE

9. EXPLODED VIEWS AND PARTS LIST

9.1 PACKING SECTION

9.2 EXTERIOR SECTION

9.3 CHASSIS SECTION

9.4 POWER AMP SECTION

9.5 FRONT PANEL SECTION

10. SCHEMATIC DIAGRAM

10.1 AUDIO IN ASSY (1/2)

10.2 AUDIO IN ASSY (2/2)

10.3 MAIN ASSY (1/4)

10.4 MAIN ASSY (2/4)

10.5 MAIN ASSY (3/4)

10.6 MAIN ASSY (4/4)

10.7 DSP & USB ASSY (1/5)

10.8 DSP & USB ASSY (2/5)