PIONEER VSX-LX51/SFXJ Service Manual

PIONEER VSX-LX51/SFXJ Service Manual
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Service Manual for PIONEER VSX-LX51/SFXJ, downloadable as a PDF file.

We also have owner's manual to this model.

Manual details

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The manual has 187 pages
File size: 28 MB
Available language versions: English
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Sample pages

ORDER NO.

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

2008 Printed in Japan

VSX-LX51

RRV3765

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

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

T-ZZV MAY

ORDER NO.

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

2008 Printed in Japan

VSX-LX51

RRV3765

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

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

T-ZZV MAY

VSX-LX51

SAFETY INFORMATION

This service manual is intended for qualified service technicians ; it is not meant for the casual do-it-

yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained

to properly and safely repair complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may

void the warranty. If you are not qualified to perform the repair of this product properly and safely, you

should not risk trying to do so and refer the repair to a qualified service technician.

VSX-LX51

[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.

VSX-LX51

CONTENTS

SAFETY INFORMATION ..........................................................................................................................................................2

1. SERVICE PRECAUTIONS ....................................................................................................................................................6

2. SPECIFICATIONS .................................................................................................................................................................7

2.1 ACCESSORIES ..............................................................................................................................................................7

2.2 SPECIFICATIONS...........................................................................................................................................................8

2.3 PANEL FACILITIES .........................................................................................................................................................9

3. BASIC ITEMS FOR SERVICE.............................................................................................................................................14

3.1 CHECK POINTS AFTER SERVICING..........................................................................................................................14

3.2 PCB LOCATIONS .........................................................................................................................................................15

3.3 JIGS LIST .....................................................................................................................................................................17

4. BLOCK DIAGRAM...............................................................................................................................................................18

4.1 OVERALL WIRING DIAGRAM......................................................................................................................................18

4.2 BLOCK DIAGRAM FOR AUDIO BLOCK ......................................................................................................................20

4.3 BLOCK DIAGRAM FOR VIDEO BLOCK ......................................................................................................................21

4.4 BLOCK DIAGRAM FOR HDMI FOR VSX-LX51 ...........................................................................................................23

4.5 BLOCK DIAGRAM FOR HDMI FOR VSX-1018AH ......................................................................................................24

4.6 BLOCK DIAGRAM FOR USB BLOCK ..........................................................................................................................25

4.7 BLOCK DIAGRAM FOR U-COM ..................................................................................................................................26

4.8 BLOCK DIAGRAM FOR POWER SUPPLY BLOCK .....................................................................................................27

5. DIAGNOSIS.........................................................................................................................................................................28

5.1 DIAGNOSIS FLOWCHART...........................................................................................................................................28

5.2 CIRCUIT DESCRIPTION ..............................................................................................................................................61

6. SERVICE MODE .................................................................................................................................................................64

6.1 TEST MODE .................................................................................................................................................................64

7. DISASSEMBLY....................................................................................................................................................................67

8. EACH SETTING AND ADJUSTMENT ................................................................................................................................71

8.1 HOW TO UPDATE FIRMWARE ....................................................................................................................................71

9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................76

9.1 PACKING SECTION .....................................................................................................................................................76

9.2 EXTERIOR SECTION...................................................................................................................................................78

9.3 CHASSIS SECTION .....................................................................................................................................................80

9.4 POWER AMP SECTION...............................................................................................................................................82

9.5 FRONT PANEL SECTION ............................................................................................................................................84

10. SCHEMATIC DIAGRAM ....................................................................................................................................................86

10.1 AUDIO IN ASSY (1/2) .................................................................................................................................................86

10.2 AUDIO IN ASSY (2/2) .................................................................................................................................................88

10.3 MAIN ASSY (1/4) ........................................................................................................................................................90

10.4 MAIN ASSY (2/4) ........................................................................................................................................................92

10.5 MAIN ASSY (3/4) ........................................................................................................................................................94

10.6 MAIN ASSY (4/4) ........................................................................................................................................................96

10.7 DSP & USB ASSY (1/5) ..............................................................................................................................................98

10.8 DSP & USB ASSY (2/5) ............................................................................................................................................100

10.9 DSP & USB ASSY (3/5) ............................................................................................................................................102

10.10 DSP & USB ASSY (4/5) ..........................................................................................................................................104

10.11 DSP & USB ASSY (5/5) ..........................................................................................................................................106

10.12 FRONT IN ASSY.....................................................................................................................................................108

10.13 INTERFACE ASSY .................................................................................................................................................110

10.14 HDMI & DVC ASSY (1/2) (VSX-LX51) ....................................................................................................................112

10.15 HDMI & DVC ASSY (2/2) (VSX-LX51) ....................................................................................................................114

10.16 HDMI ASSY (VSX-1018AH)....................................................................................................................................116

10.17 BINDER, BIND L FRONT, BIND L BACK, BIND R FRONT and BIND R BACK ASSYS ........................................118

10.18 POSI1, POSI2 and POSI3 ASSYS .........................................................................................................................119

10.19 DISPLAY ASSY.......................................................................................................................................................120

10.20 MULTI JOG, POWER SW, DIODE, HEADPHONE, PRIMARY and DC/DC ASSYS...............................................122

10.21 POWER AMP ASSY (1/2).......................................................................................................................................124

10.22 POWER AMP ASSY (2/2).......................................................................................................................................126

10.23 PRE-STAGE AMP ASSY ........................................................................................................................................128

10.24 REGULATOR ASSY................................................................................................................................................130

11. PCB CONNECTION DIAGRAM ......................................................................................................................................133

11.1 AUDIO IN ASSY........................................................................................................................................................134

11.2 MAIN ASSY ..............................................................................................................................................................138

11.3 DSP & USB ASSY ....................................................................................................................................................142

11.4 FRONT IN ASSY.......................................................................................................................................................144

11.5 INTERFACE ASSY ...................................................................................................................................................146

11.6 HDMI & DVC ASSY (VSX-LX51) ..............................................................................................................................148

VSX-LX51

11.7 HDMI ASSY (VSX-1018AH) ..................................................................................................................................... 152

11.8 BINDER, BIND L FRONT and BIND L BACK ASSYS .............................................................................................. 154

11.9 BIND R FRONT and BIND R BACK ASSYS ............................................................................................................ 155

11.10 DISPLAY, MULTI JOG and POWER SW ASSYS ................................................................................................... 156

11.11 DIODE ASSY.......................................................................................................................................................... 160

11.12 HEADPHONE ASSY .............................................................................................................................................. 161

11.13 POWER AMP ASSY ............................................................................................................................................... 162

11.14 PRE-STAGE AMP ASSY ........................................................................................................................................ 166

11.15 PRIMARY ASSY ..................................................................................................................................................... 170

11.16 REGULATOR ASSY ............................................................................................................................................... 172

11.17 DC/DC ASSY.......................................................................................................................................................... 174

11.18 POSI1, POSI2 and POSI3 ASSYS ......................................................................................................................... 175

12. PCB PARTS LIST ............................................................................................................................................................ 176