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AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-518

PHASE CONTROL

PHASE CONTROL

DIALOGUE AUTO SURR / ENHANCEMENT STREAM DIRECT

STANDBY/ON
STEREO / A.L.C. STANDARD ADVANCED SURROUND

DVD

DVD 5.1

TV

DVR

CD

CD-R

FM

AM

PORTABLE

SLEEP

INPUT SELECTOR

MASTER VOLUME

PHONES

SOUND RETRIEVER

VSB MODE

MIDNIGHT/ LOUDNESS

SIGNAL SELECT PORTABLE

ORDER NO.

RRV3707
VSX-518-K

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-518-K
VSX-518-S
Model
VSX-518-K VSX-518-S

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
KUCXJ KUCXJ AC 120 V AC 120 V

Power Requirement

Remarks

For details, refer to "Important Check Points for good servicing".
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
T-ZZK JAN. 2008 Printed in Japan

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SAFETY INFORMATION
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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.
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WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 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)
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Les symboles de fusible

(fusible de type rapide) et/ou

(fusible de type lent) sur CCI indiquent que

les pièces de remplacement doivent avoir la même désignation.

(FOR USA MODEL ONLY) 1. SAFETY PRECAUTIONS
The following check should be perfor med for the continued protection of the customer and ser vice technician.

LEAKAGE CURRENT CHECK
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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 terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.

ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. 2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement 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.

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Device under test Test all exposed metal surfaces

Leakage current tester

Reading should not be above 0.5 mA

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

Earth ground

AC Leakage Test
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CONTENTS
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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.............................................................................................................................................12 3.1 CHECK POINTS AFTER SERVICING..........................................................................................................................12 3.2 PCB LOCATIONS .........................................................................................................................................................13 4. BLOCK BIAGRAM ...............................................................................................................................................................14 4.1 OVERALL WIRING CONNECTION DIAGRAM ............................................................................................................14 4.2 BLOCK DIAGRAM ........................................................................................................................................................16 4.3 DSP BLOCK DIAGRAM................................................................................................................................................18 5. DIAGNOSIS.........................................................................................................................................................................19 5.1 DIAGNOSIS FLOWCHART (DSP ASSY) .....................................................................................................................19 5.2 DETECTION CIRCUIT..................................................................................................................................................23 5.3 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION .........................................................................25 6. SERVICE MODE .................................................................................................................................................................26 7. DISASSEMBLY....................................................................................................................................................................27 8. EACH SETTING AND ADJUSTMENT ................................................................................................................................29 9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................30 9.1 PACKING ......................................................................................................................................................................30 9.2 EXTERIOR SECTION...................................................................................................................................................32 9.3 REAR PANEL SECTION...............................................................................................................................................34 9.4 FRONT PANEL SECTION ............................................................................................................................................36 10. SCHEMATIC DIAGRAM ....................................................................................................................................................38 10.1 MAIN ASSY (1/3) ........................................................................................................................................................38 10.2 MAIN ASSY (2/3) ........................................................................................................................................................40 10.3 MAIN ASSY (3/3) ........................................................................................................................................................42 10.4 DSP ASSY (1/2)..........................................................................................................................................................44 10.5 DSP ASSY (2/2)..........................................................................................................................................................46 10.6 POWER PACK (1/2) and TRANS2 ASSY ...................................................................................................................48 10.7 POWER PACK ASSY (2/2) .........................................................................................................................................50 10.8 COMPONENT VIDEO, 5.1CH INPUT and TRANS3 ASSYS .....................................................................................52 10.9 FRONT DISPLAY, ROTARY ENCODER, POWER KEY and JOG ASSYS .................................................................54 10.10 FRONT MINI JACK, DIGITAL INPUT, REGULATOR and HEAD PHONE ASSYS....................................................56 10.11 VIDEO, PRIMARY and TRANS1 ASSYS..................................................................................................................58 11. PCB CONNECTION DIAGRAM ........................................................................................................................................60 11.1 DSP ASSY ..................................................................................................................................................................61 11.2 MAIN ASSY ................................................................................................................................................................62 11.3 POWER PACK ASSY..................................................................................................................................................66 11.4 TRANS2 and TRANS3 ASSYS...................................................................................................................................70 11.5 COMPONENT VIDEO ASSY ......................................................................................................................................72 11.6 5.1CH INPUT and HEAD PHONE ASSYS .................................................................................................................73 11.7 FRONT DISPLAY, ROTARY ENCODER, POWER KEY and JOG ASSYS .................................................................74 11.8 DIGITAL INPUT ASSY ................................................................................................................................................78 11.9 REGULATOR ASSY....................................................................................................................................................79 11.10 VIDEO ASSY ............................................................................................................................................................80 11.11 FRONT MINI JACK ASSY.........................................................................................................................................81 11.12 TRANS1 and PRIMARY ASSYS...............................................................................................................................82 12. ELECTRICAL PARTS LIST ...............................................................................................................................................84

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1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
· 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.
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1.2 AMPLIFIER FAILURE DIAGNOSIS FLOW CHART
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.

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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)
VSX-518-K
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2. SPECIFICATIONS
2.1 SPECIFICATIONS
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Amplifier section · Continuous power output (stereo) Front. . .95 W (20 Hz to 20 kHz, THD 0.2 %, 8 )1 · Rated power output
(surround / 20 Hz to 20 kHz, THD 0.06 %, 8 )

Front. . . . . . . . . . . . . . . . . . . . . .95 W per channel Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 W Surround. . . . . . . . . . . . . . . . . .95 W per channel · Rated power output
(surround / 1 kHz, THD 0.05 %, 8 )

Component video section · Input (Sensitivity/Impedance) DVD/BD, TV/SAT, DVR/VCR. . . . . . . 1 Vp-p/75 · Output (Level/Impedance) MONITOR OUT . . . . . . . . . . . . . . . . . 1 Vp-p/75 · Frequency response DVD/BD, TV/SAT, DVR/VCR MONITOR . . 5 Hz to 40 MHz dB Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . 60 dB FM Tuner Section Frequency Range . . . . . . . 87.5 MHz to 108 MHz Usable Sensitivity . . . . . . . . Mono: 13.2 dBf, IHF (1.3 V/75 ) 50 dB Quieting Sensitivity . . . . . Mono: 20.2 dBf Stereo: 38.6 dBf Signal-to-Noise Ratio . . Mono: 73 dB (at 85 dBf) Stereo: 70 dB (at 85 dBf) Distortion. . . . . . . . . . . . . . .Stereo: 0.5 % (1 kHz) Alternate Channel Selectivity. . . 60 dB (400 kHz) Stereo Separation. . . . . . . . . . . . . . 40 dB (1 kHz) Frequency Response . . . . . . . . . 30 Hz to 15 kHz (±1 dB) Antenna Input (DIN). . . . . . . . .75 unbalanced AM Tuner Section Frequency Range . . . . . . . . 530 kHz to 1700 kHz Sensitivity (IHF, Loop antenna) . . . . . . 350 µV/m Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . 50 dB Antenna. . . . . . . . . . . . . . . . . . . . . .Loop antenna Miscellaneous Power requirements . . . . . . . . . .AC 120 V/60 Hz Power consumption . . . . . . . . . . . . . . . . . .280 W In standby. . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 W Dimensions . . . . . 420 mm (W) x 158 mm (H) x 352.5 mm (D) 16 9/16 in. (W) x 6 1/4 in. (H) x 13 7/8 in. (D) Weight (without package). . . . 7.9 kg (17 lb 4 oz) Furnished Parts Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Dry cell batteries (AA size IEC R6) . . . . . . . . . .2 AM loop antenna. . . . . . . . . . . . . . . . . . . . . . . . . .1 FM wire antenna . . . . . . . . . . . . . . . . . . . . . . . . . .1 Operating instructions

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Front. . . . . . . . . . . . . . . . . . . . .120 W per channel Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 W Surround. . . . . . . . . . . . . . . . .120 W per channel

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Audio section · Input (Sensitivity/Impedance) CD, CD-R/TAPE/MD, DVD/BD, TV/SAT, DVR/VCR. . . . . . . . . . . . . .200 mV/47 k · Frequency response CD, CD-R/TAPE/MD, DVD/BD, TV/SAT, DVR/VCR. . . . .5 Hz to 100 000 Hz dB · Output (Level/Impedance) CD-R/TAPE/MD, DVR/VCR . . . . . 200 mV/2.2 k · Tone control Bass. . . . . . . . . . . . . . . . . . . . . . .± 6 dB (100 Hz) Treble. . . . . . . . . . . . . . . . . . . . . . ± 6 dB (10 kHz) Loudness. . . . . +10 dB/+5 dB (100 Hz/10 kHz) (at volume level ­50 dB) · Signal-to-Noise Ratio (IHF, short circuited, A network) CD, CD-R/TAPE/MD, DVD/BD, TV/SAT, DVR/VCR. . . . . . . . . . . . . . . . . . . . .96 dB · Signal-to Noise Ratio [EIA, at 1 W (1 kHz)] CD, CD-R/TAPE/MD, DVD/BD, TV/SAT, DVR/VCR. . . . . . . . . . . . . . . . . . . . .79 dB Video Section
· Input (Sensitivity/Impedance) DVR/VCR, DVD/BD, TV/SAT. . . . . . . 1 Vp-p/75

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· Output (Level/Impedance) DVR/VCR, MONITOR OUT . . . . . . . . 1 Vp-p/75 · Frequency response DVR/VCR, DVD/BD, TV/SAT MONITOR . . . . . 5 Hz to 7 MHz dB Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . 55 dB Crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 dB
Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the double-D symbol are trademarks of Dolby Laboratories.

Note · Specifications and the design are subject to possible modifications without notice, due to improvements.
Note 1 Continuous average power output of 95 watts* per channel, min., at 8 ohms, from 20 Hz to 20 000 Hz with no more than 0.2 %** total harmonic distortion (front). * Measured pursuant to the Federal Trade Commission's Trade Regulation rule on Power Output Claims for Amplifiers. ** Measured by Audio Spectrum Analyzer.

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"DTS" is a registered trademark of DTS, Inc. and "DTS 96/24" is a trademark of DTS, Inc.

Accessories
SOURCE
T.EDIT MENU
CH + CH -

RECEIVER

TV CTRL

SOUND DIALOG RETRIEVER

STEREO/ AUTO/DIRECT A.L.C. STANDARD ADV SURR

JUKEBOX

DVD 5.1

AUDIO

DISC

+10

RETURN

LEVEL

RECEIVER CONTROL

MULTI CONTROL PORTABLE TV DVR

TV CONTROL

ST

REC STOP

DIMMER

TV CH

AM

MPX

TV VOL

D.ACCESS

SLEEP

ENTER

INPUT SELECT

ANALOG ATT

CH SEL

QUICK SETUP

CLASS

ONE TOUCH COPY

RECEIVER

SETUP

ST

SIGNAL SEL

MIDNIGHT

TUNER DISP

PHASE

MUTE

AV PARAMETER TOP MENU

SUBTITLE

CD-R

DVD

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AM loop antenna (ATB7013)

FM wire antenna (ADH7030)

AA size IEC R6 Dry cell batteries (x2)

Remote control (VSX-518-K : XXD3155) (VSX-518-S : XXD3165)

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GUIDE

HDD

CD

SHIFT

INFO

INPUT SELECT

DVD

FM

RECEIVER

MASTER VOLUME

ENTER

TUNE

TUNE

REC

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2.2 PANEL FACILITIES
Front panel
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AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-518

PHASE CONTROL

PHASE CONTROL

DIALOGUE AUTO SURR / ENHANCEMENT STREAM DIRECT

STANDBY/ON
STEREO / A.L.C. STANDARD ADVANCED SURROUND

DVD

DVD 5.1

TV

DVR

CD

CD-R

FM

AM

PORTABLE

SLEEP

INPUT SELECTOR

MASTER VOLUME

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PHONES
SOUND RETRIEVER VSB MODE MIDNIGHT/ LOUDNESS SIGNAL SELECT PORTABLE

7 8 9 10 15
PHONES
SOUND RETRIEVER MIDNIGHT/ LOUDNESS SIGNAL SELECT PHASE CONTROL

16

17
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VSB MODE

DIALOGUE AUTO SURR / ENHANCEMENT STREAM DIRECT

STEREO / A.L.C.

STANDARD

ADVANCED SURROUND

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STANDBY/ON

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INPUT SELECTOR dial Selects an input source.
Input select buttons Character display

ST +/­ Use to select preset radio stations. Used to find radio frequencies.

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10 TUNE +/­ 11 SOUND RETRIEVER

Selects an input source.

Press to restore CD quality sound to compressed audio sources.
12 VSB MODE

5 SLEEP Press to change the amount of time before the receiver switches into standby (30 min ­ 60 min ­ 90 min ­ Off). You can check the remaining sleep time at any time by pressing SLEEP once. 6

Press to switch on/off Virtual Surround Back (VSB) mode.
13 MIDNIGHT/LOUDNESS

Switches to Midnight/Loudness listening. 14 SIGNAL SELECT Selects an input signal.
15 PHASE CONTROL

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MASTER VOLUME dial

7 PORTABLE audio input jack Connect an auxiliary component using a stereo mini-jack cable. PHONES jack Use to connect headphones (when connected, there is no sound output from the speakers).
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Press to switch on/off Phase Control.
16 DIALOGUE ENHANCEMENT

Use to make dialog stand out when watching TV or a movie.

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17 Listening mode buttons
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AUTO SURR/STREAM DIRECT Switches between Auto surround mode (Auto playback ) and Stream Direct playback. Stream Direct playback bypasses the tone controls for the most accurate reproduction of a source. STEREO/A.L.C. Switches between stereo playback, Auto level control stereo mode and Front Stage Surround Advance modes. STANDARD Press for Standard decoding and to switch between the various Pro Logic II options. ADVANCED SURROUND Switches between the various surround modes.

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ANTENNA
R
IN

CEN- SUB TER WOOFER

L
CD

FM UNBAL DIGITAL IN (ASSIGNABLE) (DVR / VCR) IN 3 (DVD / BD) IN 1

IN CD-R / TAPE / MD OUT AM LOOP OPT 1 (CD) DVD / BD IN
FRONT DVD5.1 CH INPUT

R SURROUND DVD 5.1CH INPUT

L
Y PB PR Y PB PR

DVD / BD IN

SUB WOOFER PREOUT MONITOR OUT

(ASSIGNABLE)

MONITOR OUT

COMPONENT VIDEO
L
CENTER

(TV / SAT) IN 2

R

FRONT

L R

SURROUND

IN (ASSIGNABLE) DIGITAL IN COAX 2 (DVR / VCR) COAX 1 (DVD / BD)

TV / SAT

TV / SAT IN

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IN DVR / VCR OUT

DVR / VCR IN

DVR / VCR OUT

AUDIO

VIDEO

S P E A K E R S

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Display
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SP

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B

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SIGNAL SELECT indicators Lights to indicate the type of input signal assigned for the current component:
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15

16

17

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8 ATT Lights when ANALOG ATTis used to attenuate (reduce) the level of the analog input signal. 9 SLEEP Lights when the receiver is in sleep mode. 10 Tuner indicators
/ MONO Lights when the mono mode is set using the MPX button. / STEREO Lights when a stereo FM broadcast is being received in auto stereo mode. / TUNED Lights when a broadcast is being received.
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AUTO Lights when AUTO signal select is on. DIGITAL Lights when a digital audio signal is detected. DIGITAL Lights when a Dolby Digital encoded signal is detected. ANALOG Lights when an analog signal is detected. DTS Lights when a source with DTS encoded audio signals is detected.

2 Lights to indicate decoding of a DTS multichannel signal. 3 DIGITAL Lights to indicate decoding of a Dolby Digital multichannel signal. 4 PRO LOGIC II Lights to indicate Pro Logic II decoding.

11 Speaker indicator Shows if the speaker system is on or not.
SP SP A means the speakers are switched on. means the headphones are connected.

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12 Character display 13 ADV.SURR. (Advanced Surround) Lights when one of the Advanced Surround modes has been selected. 14 WMA9 Pro Lights to indicate decoding of a WMA9 Pro signal. 15 MIDNIGHT Lights during Midnight listening. 16 D.E. Lights when Dialog Enhancement is switched on. 17 LOUDNESS Lights during Loudness listening. 18 Master volume level
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5 VIR.SB Lights during Virtual surround back processing. 6 DIRECT Lights when source Stream Direct playback is in use. Direct playback bypasses the tone controls for the most accurate reproduction of a source. 7 AUTO SURR. Lights when the Auto Surround feature is switched on.

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Remote control
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3 MULTI CONTROL buttons Press to select control of other components.

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RECEIVER SOURCE

11
INPUT SELECT

PORTABLE, DVD 5.1 and CD-R buttons can be used with SHIFT button.
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DVD

12
DVD 5.1

RECEIVER CONTROL buttons AUTO/DIRECT Switches between Auto surround mode (Auto playback) and Stream Direct playback. Stream Direct playback bypasses the tone controls for the most accurate reproduction of a source. STEREO/A.L.C. Switches between stereo playback, Auto level control stereo mode and Front Stage Surround Advance modes. STANDARD Press for Standard decoding and to switch between Pro Logic II options. ADV SURR Switches between the various surround modes. PHASE Press to switch on/off Phase Control.

MULTI CONTROL PORTABLE TV DVR

TV CTRL

3

CD-R

CD

FM

AM

RECEIVER

13

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STEREO/ AUTO/DIRECT A.L.C. STANDARD ADV SURR PHASE QUICK SETUP CH SEL MUTE SOUND DIALOG RETRIEVER LEVEL

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MASTER VOLUME
RECEIVER CONTROL

5
C

ONE TOUCH COPY AV PARAMETER TOP MENU
ST TUNE

CH +

T.EDIT MENU
ST

6
GUIDE SETUP
SUBTITLE

ENTER
CH TUNE

QUICK SETUP DIALOG Use to make dialog stand out when watching TV or a movie. SOUND RETRIEVER Press to restore CD quality sound to compressed audio sources. MUTE Mutes/unmutes the sound. CH SEL Press repeatedly to select a channel, then use LEVEL +/­ to adjust the level. LEVEL +/­ Use to adjust the channel levels.

RETURN
REC AUDIO

7

HDD

DVD

REC STOP

JUKEBOX

TUNER DISP

CLASS

MPX

D.ACCESS

ENTER

D

DISC

MIDNIGHT

ANALOG ATT

DIMMER

SLEEP

8
SIGNAL SEL

+10

INFO

TV CONTROL
INPUT SELECT

9
SHIFT

TV CH

TV VOL

14

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MASTER VOLUME +/­ Use to set the listening volume. 5 System Setup and Component control buttons The following button controls can be accessed after you have selected the corresponding MULTI CONTROL button (DVD,DVR, RECEIVER, etc.). AV PARAMETER Use to access the AV options.

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RECEIVER

1 INPUT SELECT Use to select the input source (use SHIFT for INPUT SELECT ). RECEIVER Switches the receiver between standby and on.
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TOP MENU Displays the disc `top' menu of a DVD. ONE TOUCH COPY* Copies the currently playing title from DVD to HDD or vice-versa.

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GUIDE Displays/changes the subtitles on multilingual DVDs. SETUP Press to access the System Setup menu. Also functions as the SETUP button for DVD/DVR units. T.EDIT Memorizes/names stations for recall. MENU Displays the disc menu of DVD-Video discs. RETURN Confirm and exit the current menu screen. CH +/­* Use to select channels for DVD/DVR units. 6 (TUNE , ST ), ENTER Use the arrow buttons when setting up your surround sound system. Also used to control DVD menus/options. Use the TUNE buttons can be used to find radio frequencies and the ST buttons can be used to select preset radio stations. 7 Component control buttons Use these buttons to control a Pioneer DVD player or recorder connected to your system. These buttons can be accessed after the DVD or DVR button is pressed.
Button What it does

CLASS* Switches between the three banks (classes) of radio station presets. MPX* Switches between stereo and mono reception of FM broadcasts. If the signal is weak then switching to mono will improve the sound quality. D.ACCESS* After pressing, you can access a radio station directly using the number buttons. MIDNIGHT Switches to Midnight or Loudness listening. ANALOG ATT Attenuates (lowers) the level of an analog input signal to prevent distortion. DIMMER Dims or brightens the display. SLEEP Press to change the amount of time before the receiver switches into standby (30 min ­ 60 min ­ 90 min ­ Off). You can check the remaining sleep time at any time by pressing SLEEP once. SIGNAL SEL Use to select an input signal. 9 INFO Displays additional EPG information on a DVD/ DVR.
10 SHIFT

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B

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Starts/resumes normal playback. Pauses/unpauses a disc. Stops playback. / Press to start fast reverse/forward scanning. Skips to the start of the current track or chapter, then previous tracks/ chapters. Skips to the next track or chapter. REC* Starts recording. REC STOP* Stops recording. SUBTITLE* Displays/changes the subtitles on multilingual DVD-Video discs. AUDIO* Changes the audio language or channel on DVD discs. HDD*, Switch between the hard disk and DVD* DVD controls for DVR. JUKEBOX* Display the jukebox screen.

Press to access the `boxed' commands (above the buttons) on the remote. These buttons are marked with an asterisk (* ) in this section. 11 Remote control LED Lights when a command is sent from the remote control. 12 SOURCE Turns on or off the power of the Pioneer DVD/ DVR units when DVD or DVR is selected using the MULTI CONTROL buttons. 13 RECEIVER Switches the remote to control the receiver (used to select the green commands above the number buttons (SETUP, etc)). Also use this button to set up surround sound. 14 TV CONTROL buttons These buttons can control only be used with Pioneer plasma displays. Use to turn on/off the power of the TV. INPUT SELECT Use to select the TV input signal. TV CH +/­ Use to select channels. TV VOL +/­ Use to adjust the volume on your TV.
E D

8 Number buttons and other component controls

Use the number buttons to directly select a radio frequency or the tracks on a Pioneer DVD/DVR units. There are other buttons that can be accessed after the RECEIVER button is pressed. (For example MIDNIGHT, etc.) TUNER DISP* Switches between named station presets and radio frequencies.

F

VSX-518-K
5 6 7 8

11

1

2

3

4

3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
A

To keep the product quality after servicing, confirm recommended check points shown below.
No. Procedure Check points Confirm whether the customer complain has The customer complain must not be reappeared. been solved. If the customer complain occurs Video, Audio and operations must be normal. with the particular source, such as Dolby Digital, DTS, AAC, DVD-A and HDMI, input it for the operation check. Check the analog audio playback. (Make the analog connections with a DVD player.) Check the digital audio playback. (Make the digital connections with a DVD player.) Check surround playback. (Select Surround mode and check the multichannel operations via the DSP circuit.) Check the video outputs. (Connect with a DVD player.) Check the sound from headphone output. Check the appearance of the product. Each channel audio and operations must be normal.

1

2
B

Each channel audio and operations must be normal.

3

Each channel audio and operations must be normal.

4

Video and operations must be normal.

5 6 7
C

Sound must be normal, without noise. 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 Block noise Horizontal noise Dot noise Disturbed image (video jumpiness) Too dark Too bright Mottled color Item to be checked regarding audio Distortion Noise Volume too low Volume too high Volume fluctuating Sound interrupted

D

CLEANING

Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools:
E

Position to be cleaned Fans

Cleaning tools Cleaning paper : GED-008

F

12
1 2

VSX-518-K
3 4

5

6

7

8

3.2 PCB LOCATIONS
A

5.1CH INPUT ASSY

F E

M DIGITAL INPUT ASSY P
VIDEO ASSY FM/AM TUNER UNIT

COMPONENT VIDEO ASSY

PRIMARY ASSY TRANS 2 ASSY TRANS 1 ASSY

Q D S B DSP ASSY C POWER PACK
ASSY
B

BIND ASSY

N REGULATOR
ASSY

A MAIN ASSY
TRANS 3 ASSY

G
C

HEADPHONE ASSY JOG ASSY POWER KEY ASSY

O K J
FRONT DISPLAY ASSY

L

FRONT MINI JACK ASSY

H

I

ROTARY ENCODER ASSY
D

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.

Mark No.

Description

Part No.
AWX8980 XWK3331 XWZ4283 XWZ4286 XWZ4287 XWZ4289 XWZ4290 XWZ4296 XWZ4298 XWZ4301 XWZ4315 XWZ4320 XWZ4321

Mark No.
NSP

Description

Part No.
XWK3345 XWZ4322 XWZ4334 XWZ4337 XWZ4339 XWZ4341 XWZ4344 XWK3355 AXX7210

LIST OF ASSEMBLIES
1..DSP ASSY NSP 1..COMPLEX ASSY 2..FRONT DISPLAY ASSY 2..ROTARY ENCODER ASSY 2..POWER KEY ASSY 2..JOG ASSY 2..VIDEO ASSY 2..FRONT MINI JACK ASSY 2..DIGITAL INPUT ASSY 2..PRIMARY ASSY 2..REGULATOR ASSY 2..TRANS 1 ASSY 2..HEADPHONE ASSY 1..AMP ASSY 2..POWER PACK ASSY 2..TRANS 2 ASSY 2..TRANS 3 ASSY 2..COMPONENT VIDEO ASSY 2..5.1CH INPUT ASSY 2..BIND ASSY 1..MAIN ASSY 1..FM/AM TUNER UNIT

E

F

VSX-518-K
5 6 7 8

13

1

2

3

4

4. BLOCK BIAGRAM
4.1 OVERALL WIRING CONNECTION DIAGRAM
A
D15A05-125-2651

511

J42 5/125

FRONT MINI JACK ASSY (XWZ4296)
B
971

CN401

ROTARY ENCODER ASSY (XWZ4286)

404

H I

FRONT DISPLAY ASSY (XWZ4283)

XDX3064

L

XDD3200

J22 3/300

1905 17/110

FAN XXM3012

C
CN108 CN101

CN800

N

CN813

MAIN ASSY

1915 15/230

15

CN122

CN251

XDD3251

REGULATOR ASSY (XWZ4315)

15

XDX3066

(XWK3355)

D
CN807

810

DSP ASSY (AWX8980)

CN951

CN701

CN702

11/200 J43

C C 1/2 C 2/2
POWER PACK ASSY (XWZ4322)

A A 1/3 - A 3/3

CN704

CN701

CN827

17

17

CN110

15

15

CN252

XDD3189

CN815

CN109

CN103

19

19

1911 11/120

CN304

15

15

XDD3235 1919 7/190 XDD3259 1907 13/170

CN901

CN805

CN816

CN111

CN105

CN310

11

CN803

B

6 CN302

E

CN130

5

13

CN603

P
FM/AM TUNER UNIT (AXX7210)

CN1903

21

21

VIDEO ASSY (XWZ4290)
J37

DIGITAL 5.1CH INPUT ASSY INPUT ASSY (XWZ4298) (XWZ4341)

(Note : No schematic diagram)

WIRE INDICATION
E.g. 7/140 7: Number of contacts (pin) 140: Insulation length (mm)

F

5/70 XDD3196

14
1 2

VSX-518-K
3 4

CN307

13

13

M

7

F

5

6

7

8

B*B-PH-K-S PH CONNECTOR D15A03-100-2651

A

J41 3/100

J K O

POWER KEY ASSY (XWZ4287)

B*B-EH EH CONNECTOR 1.0mm FFC 1.25mm FFC 1.25mm REVERSE FFC

471

501

D15A03-100-2651

J44 3/100

JOG ASSY (XWZ4289)

2.0mm FLAT CABLE 1.5mm FLAT CABLE

470

512

BOARD IN 1.0mm FFC CONNECTOR

B

1551

HEAD PHONE ASSY (XWZ4321)

1.25mm FFC CONNECTOR(L) 1.25mm FFC CONNECTOR 2.0mm CABLE HOLDER 1.5mm CABLE HOLDER 2.0mm CABLE CONNECTOR

XDX3065

6/400 J47

891

J7

J5

J3 J4

J6

G
TRANS3 ASSY (XWZ4337)

2.0mm BOARD to BOARD SOCKET 2.0mm BOARD to BOARD PLUG 1.25mm BOARD to BOARD SOCKET 1.25mm BOARD to BOARD PLUG AC CODE SOCKET AC CODE CONNECTOR

C

MAIN TRANS

TRANS2 ASSY (XWZ4334)

D
851 D20PYY1130E 11/300 J21 CN1201

S
D20PYY0410E

D

TRANS 1 ASSY (XWZ4320)

4/100 J52

J1

J2

COMPONENT VIDEO ASSY (XWZ4339)

CN551

E Q
k

FU1

E

CN51

PRIMARY ASSY (XWZ4301)
AC CORD

When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". k 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. k : The power supply is shown with the marked box.
VSX-518-K
5 6 7 8

F

15

1

2

3

4

4.2 BLOCK DIAGRAM
A
(For MCACC Setup) TUNER MODULE L/R

BLOCK DIAGRAM FOR VSX-518

Front Audio CD VCR/DVR TV/SAT DVD/LD

L/R L/R L/R L/R L/R

A

MAIN ASSY

EVOL/SELECT
IC108 BD3474KS2

Tone

B

CD-R/TAPE

L/R

FUNCTION SELECTOR

CD-R OUT (ADC) VCR/DVR OUT

AK4626AVQ (CODEC) (DAC)

IC105 (FL/FR)

IC103 (SL/SR) AK4114VQ (DIR) IC104 (C)

COAX1 COAX2 DSPC56371AF180 DSP IC (for DECODE) CN701 CN1903 OPT1 CN603 CN109 IC104 (SW)

C

NJM4565

LPF

M

DIGITAL INPUT ASSY

B

DSP ASSY

F
D
SL/SR C SW

5.1CH INPUT ASSY

CN307

CN105

COMPONENT VIDEO (Except MY)
Y Cb COMPONENT1 Cr Y1 Y3 Y

E
Cb3

COMPONENT VIDEO ASSY

E
Y COMPONENT2 Cb Cr

Y2

IC551 (COMPO SEL) TC74HC4052AF

Cb1 Y Cr1 Cb COMPONENT3 Cr Cr2 Cr3 Cb2 TC74HC4052AF Y 6dB 6dB 6dB IC553 (DRIVER) NJM2581M Cr Cb IC552 (COMPO SEL)

F

COMPONENT OUT

Cb Cr

16
1 2

VSX-518-K
3 4

5

6

7

8

: VIDEO SIGNAL FLOW : AUDIO SIGNAL FLOW

O

HEAD PHONE ASSY
Q1551

A

1551

OL/SELECTOR
IC108 BD3474KS2 (FL/FR)
Tone

C
CN110

POWER PACK ASSY
CN702

A. MUTE

GND

IC601 (1/2) IC603 (2/3) CN704 30dB RY751 Q601 9.5dB A. MUTE FL/FR

FUNCTION SELECTOR

B
GND
(SL/SR) 30dB Q651 SL/SR

IC601 (2/2) IC603 (3/3) RY752

9.5dB A. MUTE

GND
(C)

IC603 (1/3) RY753 30dB

Q631 9.5dB A. MUTE

C

C
GND
SW1

SW2

CN111

CN302 SW PREOUT
POWER PACK ASSY

9.5dB

Q303

A. MUTE

GND

D

CN310 IC301 NJM2595M (COMPOSITE SEL) DVR TV/SAT DVD/LD

E
STBY DVR REC R299 MONITOR IC302 NJM2243M (VIDEO/OSD SEL) 0 IC851 (PDC132A) OSD

P

VIDEO ASSY
F

VSX-518-K
5 6 7 8

17

1

2

3

4

4.3 DSP BLOCK DIAGRAM
A

DSP ASSY Block Diagram

B

DSP ASSY (VSX-518 : AWX8980)
IC701

Analog 2ch in(1)

CODEC
AK4626AVQ
X801

24.576MHz
B

SPDIF out(2)

COAX in(2) SPDIF in(5)

IC601

IC802

DIR
AK4114VQ

SDTO LRCK,BCLK OUT
AWX8805, AWX8806 only

AWX8805,AWX8809 only
C

SW
TC7WH125

IC801

DSP
DSPC56371AF180 LRCK,BCLK IN SDTI MCLK

XM in

IC401

STBY SW
TC74VHC157

IC851

IC871

XMDT
F2621E-01
IC551

Lip Sync
ML87V5002

XM Analog 2ch OUT

DAC

IC751

SERIAL ROM
IC851

AK4387ET
D

PDC151A8 for
AWX8809, AWX8810, AWX8812, AWX8980 only AWX8809, AWX8810

STBY

PDC152A8 for
AWX8805, AWX8806

A5V
E

AWX8805, AWX8809 only IC953

IC902

IC901

PQ1LAX95MSPQ

PQ1LAX95MSPQ

5 3 LEVEL SHIFTER Control in
TC74VHC08 IC951

Analog 8ch OUT
6ch OUT(AWX8980 only)

1.25V

3.3V

D5V
IC952

3 5 Control out LEVEL SHIFTER
TC74VHCT08

Control out 3 5 LEVEL SHIFTER
TC74VHCT541

F

18
1 2

VSX-518-K
3 4

5

6

7

8

5. DIAGNOSIS
5.1 DIAGNOSIS FLOWCHART (DSP ASSY)
Troubleshooting for all destination
· When a sound is not out in the multi-CH signal playback mode or surround mode with the digital signal input. (SurroundBack is not output by setting.) · Suppose CR to be normal contact and that is not damaged. · This shows failure analysis of DSP Assy.
A

Step 0: Preliminary confirmation
Confirm the following items before checking IC901 (pin 5) Do screws of COAX Jack securely tighten ? Yes To Step 1 IC902 (pin 5) (to chassis) No (to chassis)
B

Tighten screws securely.

Is the voltage of 3.3 V output? Yes

No

Replace IC901.

Step 1: MUTE pin
IC801 (pin 54) Is the voltage of output signal 0 V ? Yes To Step 2 MUTE

Is the voltage of 1.25 V output? Yes

No

Replace IC902.

No

C

Replace IC801.

To Step 4

Step 4: 3 V to 5 V conversion
IC952 (pin 18) Do convert 3 V into 5 V for pin 2 input? Yes No Turn the power off and insert the connectors securely. IC952 (pin 17) Do convert 3 V into 5 V for pin 3 input? Yes

Step 2: BtoB connector
CN901, CN701, CN951

No

Replace IC952.
D

Are the connectors securely inserted? Yes To Step 3

No

Replace IC952.

Step 3: Regulator IC
IC901 (pin 4) Is the voltage of around 5 V to 5.3 V input? Yes (to chassis) IC952 (pin 16) Do convert 3 V into 5 V for pin 4 input? Yes IC952 (pin 15) Do convert 3 V into 5 V for pin 5 input? Part shape and Pin arrangement of IC901 and IC902 Yes
E

No Check the CN901 and REGULATOR assy.

No

Replace IC952.

No

Replace IC952.
F

A
VSX-518-K 19
7 8

5

6

1

2

3

4

Step 6: DIR A
A

IC952 (pin 14) Do convert 3 V into 5 V for pin 6 input? Yes IC952 (pin 13) Do convert 3 V into 5 V for pin 7 input? Yes To Step 5

Check that the S/PDIF signal is output. Check that changes by pulling out and inserting the digital input lines. IC601 (pin 1) No IN1 (OPT: TV/SAT)

Replace IC952.

Can No Check the DIGITAL INPUT Assy, observe the and parts and patterns in the path. digital signal ? (0 V <-> 4 V) Yes IC601 (pin 5) IN2 (OPT: CD-R/TAPE/MD)

B

No

Replace IC952.

Can No Check the DIGITAL INPUT Assy, observe the and parts and patterns in the path. digital signal ? (0 V <-> 4 V) Yes IC601 (pin 44) Can observe the digital signal ? Yes IN3 (COAX: DVD/LD)

Step 5: X'tal
IC802 (pin 2)
C

No

Check the parts and patterns in the path.

(1.65 V center, amplitude more than 0.2 Vp-p) IN4 (COAX: CD)

Is there a 24.576 MHz output? Yes IC802 (pin 7)

No

IC601 (pin 42) Replace IC802 or X801. Can observe the digital signal ? Yes

No

Check the parts and patterns in the path.

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

Is there a 24.576 MHz output? Yes
D

No Check the path to pin 45 of IC801. Replace IC802.

Check that the data and clock signals are output.

IC601 (pin 27)

MCKO2 (Master clock)

IC802 (pin 5)

Is there a 24.576 MHz output? Yes To Step 6

No Check the path to pin 30 of IC601. Replace IC802.

Is the Is there No No voltage of PDN a master clock IC601-pin 31 output? 5 V? (0 V <-> 3.3 V) Check the other assy. (surrounding of the Yes microcomputer) No Replace IC601. IC601 (pin 24) LRCK (LR clock)

E

Is there a LR clock output? Yes

No

Replace IC601.

(0 V <-> 3.3 V)

B

F

20
1 2

VSX-518-K
3 4

5

6

7

8

Step 7: DSP output (digital) B
IC601 (pin 25) SDTO (Data) Digital output of each CH when inputting the digital signal with audio. IC801 (pin 5) Center/LFE data
A

Is there a data output? Yes IC601 (pin 26)

No

Replace IC601.

Is there a data output? Yes

No

Replace IC801.

(0 V <-> 3.3 V) BCK (Bit clock) IC801 (pin 6)

(0 V <-> 3.3 V) Surround L/R data

Is there a bit clock output? Yes To Step 7

No

Replace IC601.

Is there a data output? Yes IC801 (pin 7)

No

Replace IC801.

B

(0 V <-> 3.3 V)

(0 V <-> 3.3 V) Front L/R data

Is there a data output? Yes

No

Replace IC801.

(0 V <-> 3.3 V) Digital output of each CH when inputting the digital signal (- dB (no audio)).
C

IC801 (pin 5)

Center/LFE data

Is the output 0 V fixing? Yes IC801 (pin 6)

No

Replace IC801.

Surround L/R data

Is the output 0 V fixing? Yes IC801 (pin 7)

No

Replace IC801.
D

Front L/R data

Is the output 0 V fixing? Yes To Step 8

No

Replace IC801.

E

F

VSX-518-K
5 6 7 8

21

1

2

3

4

Step 8: Codec output (analog)
A

Analog output of each CH when inputting the digital signal with audio. IC701 (pin 23) Center out

Analog output of each CH when inputting the digital signal (- dB (no audio)). IC701 (pin 23) Center out

Is there a data output? Yes IC701 (pin 24)

No

Replace IC701.

Is the output 2.5 V fixing? Yes

No

Replace IC701.

LFE out

IC701 (pin 24)

LFE out

B

Is there a data output? Yes IC701 (pin 25)

No

Replace IC701.

Is the output 2.5 V fixing? Yes

No

Replace IC701.

Surround L out

IC701 (pin 25)

Surround L out

Is there a data output? Yes
C

No

Replace IC701.

Is the output 2.5 V fixing? Yes

No

Replace IC701.

IC701 (pin 26)

Surround R out

IC701 (pin 26)

Surround R out

Is there a data output? Yes IC701 (pin 27)

No

Replace IC701.

Is the output 2.5 V fixing? Yes

No

Replace IC701.

Front L out

IC701 (pin 27)

Front L out

Is there a data output?
D

No

Replace IC701.

Is the output 2.5 V fixing? Yes

No

Replace IC701.

Yes IC701 (pin 28) Front R out

IC701 (pin 28)

Front R out

Is there a data output? Yes

No

Replace IC701.

Is the output 2.5 V fixing? Yes End

No

Replace IC701.

E

F

22
1 2

VSX-518-K
3 4

5

6

7

8

5.2 DETECTION CIRCUIT
1. DC Derection Circuit Diagram : Example of VSX-918V/KUXJ/CA
A
R788 FL POWER AMP FR IC601(1/2) R694 SL IC603(3/3) R674 SR IC601(2/2) R623 C C696 IC603(1/3) R696 C697 Q697 Q696 R726 DC DT Normal : +5 V DC Detect : 0 V IC9001 (U-P) Pin72 DC PROT IC603(2/3) R628 D+5V

C

POWER PACK ASSY

A

MAIN ASSY

B

C

2. Overload Detection Circuit Diagram: Example of VSX-918V/KUXJ/CA FRONT Channel

C

POWER PACK ASSY
D778 IC603(2/3) 7pin R784

D+5V

A
R725 OL DT Normal : +5 V OVER LOAD Detect : 0 V

MAIN ASSY

POWER AMP

FL

IC9001 (U-P) Pin73 OL DET

R786 R785 Q505 D777

D
SPEAKER Impedance

3. Fan Stop Protection Circuit Diagram
D+5V

C
POWER PACK ASSY
XPROTECT (refer 4) Fan Stop DET. Fan Stop R445 Fan Fan Fan + Q252 R438 Q253 R727 XPROTECT Normal : +5 V FAN abnormal STOP : 0 V

A

MAIN ASSY

IC9001 (U-P) Pin 89 XPROTECT

E

+24V

F

VSX-518-K
5 6 7 8

23

1

2

3

4

4. XPROTECT Detection Circuit Diagram
A

When below 6 kind of voltage supply become to be short circuit to GND, XPROTECT circuit work and U-P input port voltage change from +5 V to 0 V. The U-P detect this condition as ERROR. · Voltage supply to POWER AMP IC (V neck+) · Voltage supply to POWER AMP IC (V neck-) · Voltage supply to +12 V REGULATOR IC · Voltage supply to -12 V REGULATOR IC

Voltage supply to POWER AMP IC (V neck+)
D713 R713 1SS133 1k D+5V R697 10k Q698 R698 33k

Q701 2SC5511(E)

C

POWER PACK ASSY

B

Voltage supply to POWER AMP IC (V neck-)

Q702 2SA2005(E)

A

MAIN ASSY

IC9001 (U-P) 89 XPROTECT

C
Voltage supply to +12 V REGULATOR IC
D+5.6V Q807(1/2) Q807(2/2) R808 1k Q808(2/2) C806 1/50 D807 R807 10k R806 10k D806 MTZJ6.2B C802 2200 /25 Q808(1/2) C801 2200 /25

D801 S1WB(A)60SD

Voltage supply to -12 V REGULATOR IC

D

E

F

24
1 2

VSX-518-K
3 4

5

6

7

8

5.3 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION
1. DC-abnormality detection DC detection is only enabled 2 seconds after power-on. If there is a fault in the power amplifier or a high-level signal lower than 5 Hz is input, the DC_DET port becomes "L". If the "L" is detected, the microprocessor will perform as following flow chart. In the case of simultaneous detection with the overload protection circuit, DC-abnormality detection is performed preferentially to overload detection. When a DC abnormality is detected, A.MUTE* is turned on, speaker relay is turned off, then "AMP_ERR" flashes on the display. The abnormality continues for 3 seconds. Continues. The power is shut off. Power key not effective and POWER LED blinks (only for VSX-918V). However, when the following keys are pushed so that the key input of a line and the service can be carried out, power can be on. 1 TESTMODE ON (A55F+A55F) 2 When power off, push TUNE+ key + AUTO SURR/DIRECT key continuously 2sec. (2: When a DC abnormality is detected and the power is shut off.) Any other key input from front panel or remote control will not be detected. 2. Overload detection If the speaker terminals are short-circuited or low-load driving is detected, the OL_DET port becomes "L". If the "L" is detected, the microprocessor will perform as following flow chart.
C A

*A.MUTE : Audio mute command
B

Recovery The program restarts.

When an overload is detected, A.MUTE* is turned on, speaker relay is turned off, then "OVERLOAD" flashes on the display. The abnormality continues for 3 seconds. Continues. Recovery The power is shut off even if the unit recovers.

D

The power is shut off.

E

F

VSX-518-K
5 6 7 8

25

1

2

3

4

A

3. XPROTECT detection XPROTECT is started to be monitored 200msec after power on. XPROTECT port is checked every 20msec. If Low level (ERROR) is recognized during consecutive 9 times, micon judge it as XPROTECT ERROR. It processes more preferentially than DC abnormal detection and overload detection. POWER ON When 200 msec passed after power on, the XPROTECT detection starts. Don't detect it during power off.

B

If micon detect XPROTECT = Low for 200 msec, it judge as error, and then AMUTE on, speaker relay off and shut down power supply immediately. Power key not effective (*1) and POWER LED blinks (only for VSX-918V). Power key become effective. POWER LED continue to blink. POWER ON Then no more POWER LED blinks. (*1) However, when the following keys are pushed so that the key input of a line and the service can be carried out, power can be on. 1 TESTMODE ON (A55F+A55F) 2 When power off, push TUNE+ key + AUTO SURR/DIRECT key continuously 2sec. (Effective, only when power-off is carried out by DC detection / XPROTECT detection) Any other key input from front panel or remote control will not be detected. after 60sec after X sec AC OFF AC ON after Y sec When X+Y reach 60sec.

C

D

4. Fan stop detection operation flow in the XPROTECT detection If the fan is forcibly stopped or become out of order, the 'XPROTECT' port becomes "L". Then an abnormality of fan is detected. · Detection routine and recovery is same as "3. XPROTECT detection".
E

F

6. SERVICE MODE
There is no information to be shown in this chapter. 26
1 2

VSX-518-K
3 4

5

6

7

8

7. DISASSEMBLY
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.
A

Diagnosis of the Unit
Caution:
Heatsink section in work becomes hot, and be careful with it.

1 1 2 3 4 5 6 7 8

Remove the bonnet by removing the six screws.
B

Remove the two screws. Remove the one screw. Remove the two screws. Remove the one screw. Remove the push rivet. Remove the BIND Assy by removing the one screw. Remove the one screw. Release the binders, as required. Rear view PRIMARY Assy

3

4 7

3
C

2

D

Heatsink

1

1

MAIN Assy

E

6

5

Heatsink

BIND Assy

F

VSX-518-K
5 6 7 8

27

1

2

3

4

9
A

Arrange the unit as shown in the photo below. Rear panel

B
DSP Assy

A
MAIN Assy

C
POWER PACK Assy
B

9

Heatsink

C

Do not lift the unit in this state.

D

Be careful with it so that a part of PRIMARY Assy does not touch chassis.

Diagnosis

Be careful with it when lifts an AMP. section not to damage the TRANS Assys.

E

Caution:
During diagnosis, be sure NOT to remove the three screws marked A in the above photo. There is the case that a product does not work normally when removes these screws.

A
F

A

A

28
1 2

VSX-518-K
3 4

5

6

7

8

Disassembly Front Panel Section
Caution:
Heatsink section in work becomes hot, and be careful with it.
A

1 1 2 3

Remove the bonnet by removing the six screws.

Remove the four screws. Remove the two screws. Unhook the two hooks.

3

2

2

3

B

C

1

1

1

1
D

4

Remove the front panel section.

E

4

Front panel section

F

8. EACH SETTING AND ADJUSTMENT
There is no information to be shown in this chapter. VSX-518-K
5 6 7 8

29

1

2

3

4

9. EXPLODED VIEWS AND PARTS LIST
NOTES:
A

Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Screws adjacent to mark on product are used for disassembly. For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions, apply as you think it appropriate.)

9.1 PACKING

B

C

D

E

F

30
1 2

VSX-518-K
3 4

5

6

7

8

(1) PACKING SECTION PARTS LIST
Mark No. 1 2 3 4 Description FM Wire Antenna AM Loop Antenna ····· Operating Instructions (English/French) 5 6 7 NSP 8 NSP 9 10 11 12 13 14 NSP 15 Operating Instructions (Spanish) Remote Control Battery Cover Dry Cell Battery (AA, R6) Polyethylene Bag (0.06 x 230 x 340) Packing Sheet Left Pad V5 Right Pad V5 Packing Case Sub Pad DS Tape AHG7069 XHA3174 XHA3175 See Contrast table (2) XHA3179 XEH3001
C

Part No. ADH7030 ATB7013 XRE3174
A

XRC3359 See Contrast table (2) AZN7933 XEX3002 AHG7117
B

(2) CONTRAST TABLE VSX-518-K/KUCXJ and VSX-518-S/KUCXJ are constructed the same except for the following:
Mark No. Symbol and Description VSX-518-K /KUCXJ XXD3155 XHD3779 VSX-518-S /KUCXJ XXD3165 XHD3780
D

6 Remote Control 13 Packing Case

E

F

VSX-518-K
5 6 7 8

31

1

2

3

4

9.2 EXTERIOR SECTION
NON-CONTACT SIDE
A

Refer to "9.3 REAR PANEL SECTION".

B

V

W D

A K A
C

R

P

N
A Q

O C

S

W R

N

D
L Q

M V

C

K

G
D

CONTACT SIDE
D

M L N O H P

G I H B

A

B

A
E

B C F I G

Cleaning paper : GED-008

F

Refer to "9.4 FRONT PANEL SECTION".

32
1 2

VSX-518-K
3 4

5

6

7

8

(1) EXTERIOR SECTION PARTS LIST
Mark No. 1 2 3 4 5 6 7 8 9 10 > 11 12 13 14 15 16 17 18 19 20 Description DSP Assy ····· ····· REGULATOR Assy TRANS 1 Assy POWER PACK Assy TRANS 2 Assy TRANS 3 Assy BIND Assy MAIN Assy Power Transformer (T1501) 11P Flexible Cable (J1911) 17P Flexible Cable (J1905) 7P Flexible Cable (J1919) 5P Flexible Cable (J1912) 15P Flexible Cable (J1915) ····· 13P Flexible Cable (J1907) ····· ····· XDD3259 XWZ4315 XWZ4320 XWZ4322 XWZ4334 XWZ4337 XWZ4344 XWK3355 XTS3112 XDD3189 XDD3200 XDD3235 XDD3248 XDD3251 Part No. AWX8980 > Mark No. 21 22 24 NSP 25 NSP 26 27 28 29 NSP 30 31 32 33 34 35 36 37 38 39 40 41 NSP 23 Description ····· DC Fan Motor Chassis 918 H/S Angle V3 H/Sink V5 Spacer Push Rivet Insulator Cord Clamper Binder (BK-1) Bonnet ····· ····· Insulator Screw Screw Screw Screw Screw ····· Screw See Contrast table (2) See Contrast table (2) BBZ30P060FCC BBZ30P080FNI BBZ30P080FTB BBZ30P140FTC BBZ40P080FNI
C

Part No. ····· XXM3012 XNA3060 XNG3145 XNH3048 AEB7092 AEC7205 AMR7198 RNH1005 ZCA-BK1 See Contrast table (2)
B A

(2) CONTRAST TABLE VSX-518-K/KUCXJ and VSX-518-S/KUCXJ are constructed the same except for the following:
Mark No. 31 Bonnet 34 Insulator 41 Screw Symbol and Description VSX-518-K /KUCXJ XZN3196 AMR7198 BBZ30P080FTB VSX-518-S /KUCXJ XZN3197 PNW2766 BBZ30P080FNI
D

E

F

VSX-518-K
5 6 7 8

33

1

2

3

4

9.3 REAR PANEL SECTION
A

B

C

A

B

MAIN CN105

E
A

F

Q
D

TRANS 1

M

MAIN CN105

TRANS 2 CN1201

MAIN CN103

B

P
POWER PACK CN803

MAIN CN129 FRONT VIDEO CN901

E

NON-CONTACT SIDE

F

34
1 2

VSX-518-K
3 4

CONTACT SIDE

5

6

7

8

(1) REAR PANEL SECTION PARTS LIST
Mark No. 1 2 3 4 5 6 7 > > 8 9 10 11 12 13 14 NSP 15 16 17 18 19 Description VIDEO Assy DIGITAL INPUT Assy PRIMARY Assy COMPONENT VIDEO Assy 5.1CH INPUT Assy ····· FM/AM TUNER Unit Fuse (FU1: 8A) AC Power Cord 7P Flexible Cable (J1913) R Panel Push Rivet Cord Stopper PRI Barrier Binder (BK-1) ····· ····· Screw Screw BBZ30P080FNI BBZ30P080FTB
C

Part No. XWZ4290 XWZ4298 XWZ4301 XWZ4339 XWZ4341
A

AXX7210 REK1153 ADG7024 XDD3254 See Contrast table (2) AEC7205 CM-22C XEC3087 ZCA-BK1
B

(2) CONTRAST TABLE VSX-518-K/KUCXJ and VSX-518-S/KUCXJ are constructed the same except for the following:
Mark No. 11 R Panel Symbol and Description VSX-518-K /KUCXJ XNC3554 VSX-518-S /KUCXJ XNC3555
D

E

F

VSX-518-K
5 6 7 8

35

1

2

3

4

9.4 FRONT PANEL SECTION
A

O J
A
POWER PACK CN702

A

B

H K
MAIN CN101

I
C

D

T
E

MAIN CN108

NON-CONTACT SIDE

F

36
1 2

CONTACT SIDE

VSX-518-K
3 4

5

6

7

8

(1) FRONT PANEL SECTION PARTS LIST
Mark No. 1 2 3 4 5 6 7 8 9 10 11 NSP 12 13 14 15 Description FRONT DISPLAY Assy ROTARY ENCODER Assy POWER KEY Assy JOG Assy FRONT MINI JACK Assy HEADPHONE Assy ····· ····· ····· ····· Earth Plate FR V3 HP GND Plate VOL Knob V4 VOL Knob V5 STANDBY BTN XNG3144 XNG3178 See Contrast table (2) See Contrast table (2) See Contrast table (2) Part No. XWZ4283 XWZ4286 XWZ4287 XWZ4289 XWZ4296 XWZ4321 Mark No. 16 NSP 17 18 19 20 21 22 23 24 25 26 27 Description D Panel PC F Panel Assy FUNC BTN SUB BTN TUNER BTN ····· Pioneer Name Plate FRT Panel ····· Screw Screw Screw BBZ30P080FTC BBZ30P080FNI BPZ30P080FTC
B

Part No. XAK3595 See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2)
A

See Contrast table (2) See Contrast table (2)

C

(2) CONTRAST TABLE VSX-518-K/KUCXJ and VSX-518-S/KUCXJ are constructed the same except for the following:
Mark No. Symbol and Description VSX-518-K /KUCXJ XAB3053 XAB3058 XAD3202 XXG3359 XAD3257 XAD3259 XAD3261 XAM3006 XMB3308 VSX-518-S /KUCXJ XAB3057 XAB3060 XAD3203 XXG3360 XAD3258 XAD3260 XAD3262 VAM1129 XMB3309
D

13 VOL Knob V4 14 VOL Knob V5 15 STANDBY BTN
NSP

17 F Panel Assy 18 FUNC BTN 19 SUB BTN 20 TUNER BTN 22 Pioneer Name Plate 23 FRT Panel

E

F

VSX-518-K
5 6 7 8

37

1

2

3

4

10. SCHEMATIC DIAGRAM
10.1 MAIN ASSY (1/3)
A 3/3 TR
(R)

D311 1SS355

D331 UDZS6R8(B)

R311 100/1W

GNDA

V+7

C331 0.01

CIN1 SBRIN1

C332 0.01

YB

C334 100/10

GNDA

R129

STBY STBY

C198 C197 *1 *1 CH CH R116 R115

C182 C181 *1 *1 CH CH

STBY

CD

D312 1SS355

R121

(CHASSIS)

330

(C)

10/50

(SBL)

L

C121

(L)

R312 100/1W

D332 UDZS6R8(B)

(SL)

(FL)

SBLIN1

FRIN1

FLIN1

SWIN1

SRIN1

SLIN1

STBY

C333 100/10

YB

SWIN1 CIN1 SBRIN1 SBLIN1

FRIN1 FLIN1 SRIN1 SLIN1

A 3/3 TL

STBY STBY

R142 R141

A

(L)

V+12

V-7

R130 330

R122

C180 0.01 YB GND R105

C122 10/50 C127 10/50

STBY

(SW)

B

R

GNDA

(R)

C151 0.01 R147 YB

V-12

C149 0.047 YB

XKB3055

CN125

GNDA

STBY STBY

R318 R317

C186 C185 *1 *1 CH CH

CH CH *1 *1 C106 C105

PLAY

330

R127

STBY

L

(L)
RIN

(L)

R106

GNDA (R)

STBY STBY

C130

L103 STBY

C1041 C1031

*1 *1 C104 C103

STBY STBY

CH CH R316 R315

R125

22p CH

(L)

R155 STBY R154 STBY L104 STBY

(L)

STBY

L (CHASSIS) REC R

(L) 41
42

20 CD(R) CD(L) 19 18 17 16 15

(R)

GNDA R183

R126

R104 2.2K R109

STBY

C126 10/50 C133 10/50 GNDA

0

45

43 VCR(R) 44 VCR(L) TV(R) TV(L) DVD/LD(R) DVD/LD(L) CDR(R) CDR(L)

22p CH

(L)46
47

C148

40

39

37

36

35

34

33

32

31

30

29

27

26

25

24

23

22 21

38

28

GND

C125 R103 2.2K GNDA 10/50

C
CH CH *1 *1 C110 C109 R328 R327 STBY

C190 C189 *1 *1 CH CH

STBY

330

R133

L

(L)

(L)48 (L)50
51 49

IC108 BD3474KS2

14

C152

DVD/LD R

R110 330

C134 10/50 C131 10/50

GNDA

(L) VIDEO R 52 (L)54
55 57 53

R134

C179 0.01 YB GND

STBY

(R)

R182 0

VIDEO L
AUX(R) AUX(L)

13 0.022 YB AVCC 12 DGND 11 C147 DATA 10 CLOCK YB 9 0.01 AVEE 8 7 6 5 4

STBY

0.022 YB

CD-R/TAPE

C199

330 0.01 YB

R128

C128 10/50

STBY

R

R152 STBY

R151 STBY

*4

LIN

C129

C150 C153 0.047 YB 0.15 YB R148 C154 0.15 YB 1K

1K

(FL) (SL)
C155 47/50 R396 STBY

R107

(L)
C188 C187 *1 *1 CH CH

GNDA

CH CH *1 *1 C108 C107

R320 R319

(CHASSIS) TV/SAT R

330

R131

L

STBY STBY

STBY

SIRIUS R 56 SIRIUS L
71 CDRREC(R) 72 CDRREC(L) 73 VCRREC(R) 74 VCRREC(L)
TR TL

(L)58
59 60

3 2 1

R108 330

64 SR 65 SL 66 SW

(R)

10/50

R181 0

69 SBLIN 70

R132

STBY

MICOUT

67 C 68 SBRIN

C132

GNDA

(C)

61

76

77

62

63

XKB3067-

CN142

(L)

GNDA

STBY STBY

R326 R325

C192 C191 *1 *1 CH CH

CH CH *1 *1 C114 C113

L PLAY R DVR/VCR MD L GND (CHASSIS) REC R

R114 330

(R)

GNDA

STBY

R138

R157 STBY

C138 10/50 R111

R180 0 GNDA

*1 *1 CH CH C112 C111

STBY STBY

R324 R323

C118 C117 22p 22p

2.2K

D20PYY0323E

J30

GNDA0 GNDA1 C139

GNDA

CN108

L
E

GNDA VIDEO R

2 3

GNDA FRONT R

R139

10/50 C140 10/50

STBY

VIDEO L

1

FRONT L

(L)

STBY

R140

R159 STBY

TO FRONT AUDIO ASSY

52147-0310

R158 STBY

R161 STBY

GNDA

R162 STBY

971

(R)

STBY

R136

2.2K

CH

L112 STBY

R112

GNDA C136

(R) 10/50

STBY

L111 STBY R156 STBY

(L)

GNDA C135

CH

R135

10/50

R149 100k

D

STBY

R113 330

R137

C137 10/50

DSPOL

A 3/3

SW

SR

FR

75

1/50 C165

C166

(L) 1/50

(SBL)

SL

FL

(SW)

(SL)

(FL)

(C) C

SBR

79 80

78

(SBL)

GDAC

SBRO

CN105

9604S-07C

CN109
XKP3090

F

1

3

5

7

RCMUT/OVF SRO GNDA(DAG) SLO GNDA(DAG) SWO GNDA(DAG) CO

GNDA(DAG) FRO VCOMG FLO

GNDA(DAG) LIN

RIN

GNDA

2

4

6

A 1/3
38
1 2

TO 5.1CH INPUT ASSY

F
CN307
3

C 2/2 CN815
TO POWER PACK ASSY

SW

AG

AG

AG

VSX-518-K
4

SR

SL

C

SBLO

15 14

13 12

11 10

9 8

7 6

5 4

3 2

1

5

6

7

8

Low Pass Filter
(SL) C241
2.2/50 TS R243 STBY R245 3.3K

MP

IC103 (1/2) NJM4565MD R247 5 + 3.3K

4 7 C249 STBY R253 R257 STBY

330p CH

STBY

STBY

R255

STBY

R241

C245

C243

C257

6 R251

8

SLIN1

(SL)
C252 0.01 YB

47K

R249

3.3K

1.8K

STBY

0.01 YB

C247 330p CH R232 STBY

V+12

A

C251

A 1/3

MAIN ASSY (XWK3355)

NOTES: NO INDICATED PARTS IS.... RESISTOR: RS1/16S***J-T, RS1/10S***J-T CHEMICAL CAPACITOR: CEAT***M**-T,-TS CERAMIC CAPACITOR: CCSRCH****50-T CKSRYB****50-T () (SQ):CKSQ.CCSQ : AUDIO SIGNAL FLOW

GDAC

SR C242
2.2/50 TS

R244 STBY

R246 3.3K

IC103 (2/2) NJM4565MD R248 3.3K 3 + 2 R252

C248 330p CH R235 STBY 4 1 C250 STBY R258 STBY

V-12
(SR)

SRIN1

CH

STBY

STBY

C244

R242

C246

330p

R256

C258

STBY

8 R254 STBY

47K

For Wire Styling
101

B

R250

3.3K

1.8K

V+12 C267 330p CH R236 STBY

GDAC

C261

R263 STBY

R265 3.3K

C271

(C)

0.01 YB

IC104 (1/2) NJM4565MD R267 3.3K 5 + 6 R271 4 7

VEF1040-A

330p CH

STBY

C277

STBY

STBY

R261

C265

R275

C272

C263

8 R273 STBY

0.01 YB

47K

R146 1K

R145

1K

R269

100p CH

C146 100p CH

C145

3.3K

VLDT C141 0.1
(FROUT)

330p CH

GNDD

C203

STBY

R201 47K

C205

R209

(FL) (SL) (C)

(FLOUT) (SROUT) (SLOUT) GDAC C208 330p CH R240 STBY

(SWOUT)

STBY

C204

R202

C206

(SBL)

330p CH

(SBL)

2.2/50 TS

STBY

3.9K

3.9K

3 + 2 R212

4 C210 1 8 R214 STBY STBY

0.01 YB

R204

R206

C217

(COUT)

FR C202

IC105 (2/2) NJM4565MD R208

3.9K

R211 3.3K

R213 STBY

STBY

R215

STBY

R216

47K

C218

R210

3.9K

A 2/3

3.3K

0.01 YB

SBL C282
STBY

R284 STBY

R286 STBY

R288 STBY 5 + 6 R292

4 C290 7 R298 STBY STBY

STBY

C291

STBY

STBY

C284

STBY

R282

STBY

STBY C292

R296

STBY

C286

C298

STBY

R290

STBY C285

STBY

STBY R279

R281

C283

STBY

STBY

STBY

R289

STBY

STBY

STBY

R295

C297

YB

YB

R262

C264

C266

220P

R272

R274 270

STBY

STBY

R276

C278

330p

47K

R270

1.2K

VLCK

C269 STBY

2.2/50 TS

R277 STBY

(C)

D103

CIN1
DAN217U D105 GNDU

GDAC

1.8K

GDAC

(FL) C201
2.2/50 TS

R203 STBY

R205 3.9K

IC105 (1/2) NJM4565MD R207 3.9K 5 + 6 4 7 8

C207 330p CH R239 STBY

GNDA V-12

DAN217U D107

GNDU

(FL)
C209 STBY

C
FLIN1
GDAC DAN217U GNDA

V+12

(FR)

FRIN1

D
V-12 C288 STBY R259 STBY V+12

GDAC

STBY
IC106 (1/2) STBY

(SBL)

SBLIN1

8 R294 STBY

STBY

*1

*4

Not used

VSX-518
XKB3055

CN125

GDAC

(SBL)

C281

R283 STBY

R285 STBY

IC106 (1/2) STBY R287 STBY 3 +

C287 STBY R260 STBY 4 C289 STBY R297 STBY

V-12

MAIN ASSY(1/3)
(SBL)
SBRIN1

STBY

1 8 2 R291 R293

E

(L)
C268

: Audio Signal Route (L ch) : Audio Signal Route (Mic ch) : Audio Signal Route (Front L ch) : Audio Signal Route (Surround L ch) : Audio Signal Route (Center ch) : Audio Signal Route (Surround Back L ch) : Audio Signal Route (SubWoofer ch)
F

GDAC IC104 (2/2) 100p YB NJM4565MD R268 4 3 + 12K 1 8 2 2.7K

(M) (FL)
C270 STBY R278 STBY

(SW)

C262 2.2/50 TS

R264 3.9K

R266 4.7K

(SW)
SWIN1

(SL) (C) (SBL) (SW)

GDAC

A 1/3
VSX-518-K
5 6 7 8

39

1

2

3

4

10.2 MAIN ASSY (2/3)
PRE-AMP
A
R303 (FLOUT) (FROUT) (SLOUT) (SROUT) 100 R304 100 R305 100 R306 100 R307 100 R308 100
(SR) (FR)

R467 0 IC310 STBY + (2/2) FL R457STBY C323 STBY C324 R458 *1 STBY C327 C325 22/50 TS
V+12

R321

(FL)

STBY C321 STBY

(FL)
STBY STBY R453

(FL)
R459 R460

R461

R455

A 1/3
(COUT) (SWOUT) (SBLOUT)

(C)
STBY R462

(SBL)
(SBR)

C322 STBY R322 STBY

(FR)

B

(SBROUT)

FR IC310 + STBY (1/2) R452
0 R471 0 IC311 STBY (2/2)

STBY C326 22/50 TS C328 STBY

A 3/3

SWPR

(SW)

C341 STBY

(SL)
R475 R473 STBY STBY

10k

(SW)

STBY STBY

R454

R456

10k

(SL)

STBY

R481

STBY

+ SL C343

C345 22/50 TS

(SL)

STBY

STBY C344 R478 STBY SR + STBY C347

R482

STBY

GNDA

STBY

R474

STBY

R476

R480

10k 10k

R477

STBY C346 22/50 C348 STBY

C342 STBY

C

(SR)

IC311 STBY (1/2)

R472 0 R549 0 C361 STBY IC312 STBY (1/2)

(C)
STBY R493 STBY

+ R497 C363 C364

C365 22/50

R479

C
R499
STBY STBY STBY

(C)
10k 10k

R483

Q361 2SC5938A(AB)

STBY STBY R502

R496

STBY

R495

STBY

R484

100k R485

R494

4.7K

D

STBY -

C362 10/50 TS

R488 STBY

C370
(SW) STBY

SW +
IC312 STBY (2/2)

C366 4.7/50 TS

(SW)

R550 0

C368 STBY

R504 STBY

C384 STBY

(SBL)
R512 STBY
+ SBL -

IC315 STBY (2/2)

R500

R498

STBY

C367

C388 STBY

(SBL)
STBY R516

STBY

R506

R508 STBY

R514*3 C386 STBY

E

R509 STBY

STBY

R507

C393 STBY

R513 STBY

-

R505 STBY

C385 STBY

(SBR)

SBR +
C390 IC315 STBY (1/2) STBY

STBY

R517

C389 STBY

(SBR)

STBY

F

A 2/3
40
1 2

VSX-518-K
3 4

STBY

C387 R515 *3

STBY

R518

5

6

7

8

TO MAIN ASSY ( TO MAIN ASSY 3/3 )

A 2/3
A 3/3
CONTROL

MAIN ASSY (XWK3355)

A

(SBL)
(SB)

SBR SBL

(C) (SL) (FL)
(SR) (FR)

(C) (SL) (FL)

17 16 15 14 13 12 11 10 9

C GNDA SL GNDA FL

TO POWER PACK ASSY

GNDA SR GNDA FR

B

AMUTE F-DRIVE DCDT XPROTECT OLDT
7

C 1/2
CN704

8 6 5 4

AMUTE F-DRIVE DCDT XPROTECT OLDT
6 OHM

A 3/3 6_OHM
C392

3 2 1

NECK
GNDU

C FL FR SL SR

R433 68K R431 100K R432 100K R435 68K R436 68K + IC251 NJM4565MD (2/2) R434 39K R430 100K R444 100K

1000p YB GNDU C320 STBY

CN110
XKP3059

DAN217U

GNDA

GNDCH

CN252
B3B-EH
TO FAN MOTOR

D251

FAN+ FANFAN STOP

C

3

IC251 NJM4565MD (1/2) +

STBY

R446

R441

FAN

2

2.2K

1

R445

22k

0.01 R442

C254 100/25

C256

C253

0.01

100K

Q253 RT1N241M

Q257 2SA1576A
(QR)

R551 8.2K R449 8.2k 52147-0310

GNDU GNDU +24V

G
891

R440

R438

R439

10K

10K

10K

J22
XDX3064

2SC4081 (QR)

Q250

TO TRANS3 ASSY

C255 STBY NP

CN251
3 2

R448

100K

D254 UDZS5R1(B)

1

NOTE

D

1.RESISTORS
Unit: k-k, M-M or unless otherwise noted. Rated power: 1/16W unless otherwise noted. Tolerance: (J) + 5% unless otherwise noted. -

R437

10K

2SC4081 (QR)

Q248 Q249 RT1N241M

2.CAPACITORS
Unit: p-pF or F unless otherwise noted. Ratings: Capacity(F)/Voltage(V) unless otherwise noted. Rated Voltage: 50V expect for electrolytic capacitors. JA:CEJA

V+5U Q254 RT1P241M Q252 2SD1858X
(QR)

: AUDIO SIGNAL FLOW

STBY

C300

STBY

R300

R443 470

Q255 *5

Q2