PIONEER VSX-818V-S/YDWXJ Service Manual

PIONEER VSX-818V-S/YDWXJ Service Manual
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Service Manual for PIONEER VSX-818V-S/YDWXJ, downloadable as a PDF file.

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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

MASTER

VOLUME

VSX-918V

STANDBY/ON

PHONES

DVD

DVR

VIDEO/PORTABLE

CD-R

iPod USB

SPEAKERS

VSB MODE

SIGNAL

SELECT

SOUND

RETRIEVER

AUX

PHASE

CONTROL

INPUT

SELECTOR

ADVANCED

SURROUND

STEREO /

A.L.C.

STANDARD

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

ACOUSTIC

PHASE

CONTROL

AUTO SURR /

STREAM DIRECT

MCACC

PORTABLE

iPod DIRECT

USB

AUDIO R

VIDEO

DIGITAL PRECISION

PROCESSING

VSX-918V-K

RRV3736

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-918V-K

VSX-918V-S

VSX-818V-K

VSX-818V-S

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

Model

Type

Power Requirement

Remarks

VSX-918V-K

MYSXJ5

AC 220 V to 230 V

VSX-918V-S

MYSXJ5

AC 220 V to 230 V

VSX-818V-K

MYSXJ5

AC 220 V to 230 V

VSX-818V-S

MYSXJ5

AC 220 V to 230 V

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

T-ZZK MAR.

VSX-918V-K

SAFETY INFORMATION

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

do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been

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

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

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

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

WARNING

This product contains lead in solder and cer tain electrical par ts contain chemicals which are known to the state of California to

cause cancer, bir th defects or other reproductive harm.

Health & Safety Code Section 25249.6 Ð Proposition 65

NOTICE

(FOR CANADIAN MODEL ONLY)

Fuse symbols

(fast operating fuse)

and/or

(slow operating fuse) on PCB indicate that replacement

parts must be of identical designation.

REMARQUE

(POUR MODÈLE CANADIEN SEULEMENT)

Les symboles de fusible

(fusible de type rapide)

et/ou

(fusible de type lent) sur CCI indiquent que

les pièces de remplacement doivent avoir la même désignation.

ANY MEASUREMENTS NOT WITHIN THE

LIMITS OUTLINED ABOVE ARE INDICATIVE

OF A POTENTIAL SHOCK HAZARD AND

MUST BE CORRECTED BEFORE RETURN-

ING THE APPLIANCE TO THE CUSTOMER.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appliance

have special safety related characteristics. These are

often not evident from visual inspection nor the

protection afforded by them necessarily can be obtained

by using replacement components rated for voltage,

wattage, etc. Replacement par ts which have these

special safety character istics are identified in this

Service Manual.

Electr ical components having such features are

identified by marking with a

on the schematics and

on the parts list in this Service Manual.

The use of a substitute replacement component which

does not have the same safety characteristics as the

PIONEER recommended replacement one, shown in the

parts list in this Service Manual, may create shock, fire,

or other hazards.

Product Safety is continuously under review and new

instructions are issued from time to time. For the latest

infor mation, always consult the current PIONEER

Service Manual. A subscription to, or

additional copies

of, PIONEER Ser vice Manual may be obtained at a

nominal charge from PIONEER.

(FOR USA MODEL ONLY)

1. SAFETY PRECAUTIONS

The following check should be perfor med for the

continued protection of the customer and ser vice

technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known ear th ground

(water pipe, conduit, etc.) by connecting a leakage

current tester such as Simpson Model 229-2 or

equivalent between the ear th ground and all exposed

metal par ts of the appliance (input/output ter minals,

screwheads, metal overlays, control shaft, etc.). Plug

the AC line cord of the appliance directly into a 120V

AC 60 Hz outlet and turn the AC power switch on. Any

current measured must not exceed 0.5 mA.

Device

under

test

Leakage

current

tester

Earth

ground

Reading should

not be above

0.5 mA

Also test with

plug reversed

(Using AC adapter

plug as required)

Test all

exposed metal

surfaces

AC Leakage Test

VSX-918V-K

CONTENTS

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

1. SERVICE PRECAUTIONS ....................................................................................................................................................5

1.1 NOTES ON SOLDERING ...............................................................................................................................................5

1.2 AMPLIFIER FAILURE DIAGNOSIS FLOW CHART........................................................................................................5

2. SPECIFICATIONS .................................................................................................................................................................6

2.1 SPECIFICATIONS...........................................................................................................................................................6

2.2 PANEL FACILITIES .........................................................................................................................................................7

3. BASIC ITEMS FOR SERVICE.............................................................................................................................................13

3.1 CHECK POINTS AFTER SERVICING..........................................................................................................................13

3.2 JIGS LIST .....................................................................................................................................................................13

3.3 PCB LOCATIONS .........................................................................................................................................................14

4. BLOCK BIAGRAM ...............................................................................................................................................................16

4.1 OVERALL WIRING CONNECTION DIAGRAM (VSX-918V) ........................................................................................16

4.2 OVERALL WIRING CONNECTION DIAGRAM (VSX-818V) ........................................................................................18

4.3 BLOCK DIAGRAM (VSX-918V) ....................................................................................................................................20

4.4 BLOCK DIAGRAM (VSX-818V) ....................................................................................................................................22

4.5 DSP BLOCK DIAGRAM................................................................................................................................................24

4.6 HDMI BLOCK DIAGRAM ..............................................................................................................................................25

4.7 USB BLOCK DIAGRAM................................................................................................................................................26

5. DIAGNOSIS.........................................................................................................................................................................27

5.1 DIAGNOSIS FLOWCHART...........................................................................................................................................27

5.2 DETECTION CIRCUIT..................................................................................................................................................45

5.3 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION .........................................................................47

6. SERVICE MODE .................................................................................................................................................................49

7. DISASSEMBLY....................................................................................................................................................................50

8. EACH SETTING AND ADJUSTMENT ................................................................................................................................55

8.1 HOW TO UPDATE FIRMWARE ....................................................................................................................................55

9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................56

9.1 PACKING SECTION .....................................................................................................................................................56

9.2 EXTERIOR SECTION...................................................................................................................................................58

9.3 REAR PANEL SECTION...............................................................................................................................................60

9.4 FRONT PANEL SECTION ............................................................................................................................................62

10. SCHEMATIC DIAGRAM ....................................................................................................................................................64

10.1 MAIN ASSY (1/3) ........................................................................................................................................................64

10.2 MAIN ASSY (2/3) ........................................................................................................................................................66

10.3 MAIN ASSY (3/3) ........................................................................................................................................................68

10.4 DSP & USB ASSY (1/4) ..............................................................................................................................................70

10.5 DSP & USB ASSY (2/4) ..............................................................................................................................................72

10.6 DSP & USB ASSY (3/4) ..............................................................................................................................................74

10.7 DSP & USB ASSY (4/4) ..............................................................................................................................................76

10.8 POWER PACK (1/2) and TRANS2 ASSYS.................................................................................................................78

10.9 POWER PACK ASSY (2/2) .........................................................................................................................................80

10.10 COMPONENT VIDEO, 5.1CH INPUT and TRANS3 ASSYS ...................................................................................82

10.11 FRONT DISPLAY, ROTARY ENCODER, POWER KEY and JOG ASSYS ...............................................................84

10.12 DIGITAL INPUT, REGULATOR and HEAD PHONE ASSYS.....................................................................................86

10.13 VIDEO, PRIMARY and FRONT VIDEO ASSYS .......................................................................................................88

10.14 FRONT IN ASSY.......................................................................................................................................................90

10.15 HDMI & DSP & USB ASSY (1/5) ..............................................................................................................................92

10.16 HDMI & DSP & USB ASSY (2/5) ..............................................................................................................................94

10.17 HDMI & DSP & USB ASSY (3/5) ..............................................................................................................................96

10.18 HDMI & DSP & USB ASSY (4/5) ..............................................................................................................................98

10.19 HDMI & DSP & USB ASSY (5/5) ............................................................................................................................100

11. PCB CONNECTION DIAGRAM ......................................................................................................................................102

11.1 DSP & USB and HDMI ASSYS.................................................................................................................................102

11.2 MAIN ASSY ..............................................................................................................................................................106

11.3 POWER PACK ASSY................................................................................................................................................110

11.4 TRANS2 and TRANS3 ASSYS.................................................................................................................................114

11.5 COMPONENT VIDEO ASSY ....................................................................................................................................116

11.6 5.1CH INPUT and HEAD PHONE ASSYS ...............................................................................................................117

11.7 FRONT DISPLAY, ROTARY ENCODER, POWER KEY and JOG ASSYS ...............................................................118

11.8 DIGITAL INPUT and FRONT VIDEO ASSYS ...........................................................................................................122

11.9 REGULATOR ASSY..................................................................................................................................................123

11.10 VIDEO ASSY ..........................................................................................................................................................124

11.11 FRONT IN ASSY.....................................................................................................................................................125

11.12 PRIMARY ASSY .....................................................................................................................................................126

11.13 HDMI & DSP & USB ASSY.....................................................................................................................................128

12. ELECTRICAL PARTS LIST .............................................................................................................................................132

VSX-918V-K

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

1.2 AMPLIFIER FAILURE DIAGNOSIS FLOW CHART

· For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.

Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs

accompanied by reworking of soldering.

· 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.

Amplifier failure diagnosis flow chart

When DC detection is activated ("AMP_ERR" flashes on the display), failure (damage) of the power amplifier

section is considered.

Caution:

When releasing the lock state of power key before repair, please be careful because there is the

possibility that more damages will occur when turning on the power once again!

· According to a symptom, perform the following confirmation beforehand.

1) Are there any Fuses and IC protectors open?

2) After turn on the power, confirm that the supply voltage of the point that can be measured is appropriate.

(Particularly the supply voltage of the power Tr and drive step)

3) Whether the voltage of pin2 and pin5 of IC601 or IC603 is equal to (VL-0.7V). If not (eg, equal to VH),

then change the corresponding power pack IC601 or IC603.

4) Furthermore, check the output DC voltage of each channel of power pack IC601 and IC603

to limit the failure channel and identify the defect power pack.

· After identify the failure channel, check that each part is not damaged (resistor, diode... etc. value / open /

short)

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