Pioneer VSX-918 Schematic

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
MASTER VOLUME
VSX-918V
STANDBY/ON
PHONES
DVD
DVRTV
VIDEO/PORTABLE
CD/CD-R
iPod
FM/AM
XM
SPEAKERS
VSB MODE
SIGNAL SELECT
SOUND
RETRIEVER
SIRIUS
AUX
PHASE
CONTROL
INPUT
SELECTOR
ADVANCED SURROUND
STEREO /
A.L.C.
STANDARD
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
ACOUSTICEQPHASE
CONTROL
AUTO SURR /
STREAM DIRECT
MCACC
PORTABLE
iPod DIRECT
AUDIO RL
VIDEO
DIGITAL PRECISION
PROCESSING

VSX-918V-K

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).
ORDER NO.
RRV3706
Model Type Power Requirement Remarks
VSX-918V-K KUXJ/CA AC 120 V
VSX-918V-S KUXJ/CA AC 120 V
VSX-818V-K KUXJ/CA AC 120 V
VSX-818V-S KUXJ/CA AC 120 V
For details, refer to "Important Check Points for good servicing".
T-ZZK JAN.
2008 Printed in Japan
1
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 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) 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 RETURN­ING THE APPLIANCE TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual.
Electrical components having such features are identified by marking with a on the 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 information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER.
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.
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 al l exposed metal surfaces
AC Leakage Test
2 3 4

SAFETY INFORMATION

A
B
C
D
E
F
2
1
2 3 4
VSX-918V-K
5
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
3
1
2 3 4

CONTENTS

SAFETY INFORMATION ..........................................................................................................................................................2
1. SERVICE PRECAUTIONS ....................................................................................................................................................5
A
B
C
D
E
F
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 (iPod) BLOCK DIAGRAM .....................................................................................................................................26
5. DIAGNOSIS.........................................................................................................................................................................27
5.1 DIAGNOSIS FLOWCHART...........................................................................................................................................27
5.2 DETECTION CIRCUIT..................................................................................................................................................48
5.3 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION .........................................................................50
6. SERVICE MODE .................................................................................................................................................................51
7. DISASSEMBLY....................................................................................................................................................................52
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................57
8.1 HOW TO UPDATE FIRMWARE....................................................................................................................................57
9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................58
9.1 PACKING ......................................................................................................................................................................58
9.2 EXTERIOR SECTION...................................................................................................................................................60
9.3 REAR PANEL SECTION...............................................................................................................................................62
9.4 FRONT PANEL SECTION ............................................................................................................................................64
10. SCHEMATIC DIAGRAM ....................................................................................................................................................66
10.1 MAIN ASSY (1/3) ........................................................................................................................................................66
10.2 MAIN ASSY (2/3) ........................................................................................................................................................68
10.3 MAIN ASSY (3/3) ........................................................................................................................................................70
10.4 DSP & USB ASSY (1/4)..............................................................................................................................................72
10.5 DSP & USB ASSY (2/4)..............................................................................................................................................74
10.6 DSP & USB ASSY (3/4)..............................................................................................................................................76
10.7 DSP & USB ASSY (4/4)..............................................................................................................................................78
10.8 POWER PACK (1/2) and TRANS2 ASSYS.................................................................................................................80
10.9 POWER PACK ASSY (2/2) .........................................................................................................................................82
10.10 COMPONENT VIDEO, 5.1CH INPUT and TRANS3 ASSYS ...................................................................................84
10.11 FRONT DISPLAY, ROTARY ENCODER, POWER KEY and JOG ASSYS ...............................................................86
10.12 DIGITAL INPUT, REGULATOR and HEAD PHONE ASSYS.....................................................................................88
10.13 VIDEO, PRIMARY, FRONT VIDEO and TRANS1 ASSYS........................................................................................90
10.14 FRONT IN ASSY.......................................................................................................................................................92
10.15 SIRIUS ASSY ...........................................................................................................................................................94
10.16 HDMI & DSP & USB ASSY (1/5) ..............................................................................................................................96
10.17 HDMI & DSP & USB ASSY (2/5) ..............................................................................................................................98
10.18 HDMI & DSP & USB ASSY (3/5) ............................................................................................................................100
10.19 HDMI & DSP & USB ASSY (4/5) ..............................................................................................
.20 HDMI & DSP & USB ASSY (5/5) ............................................................................................................................104
10
..............................102
11. PCB CONNECTION DIAGRAM ......................................................................................................................................106
11.1 SIRIUS ASSY ...........................................................................................................................................................107
11.2 DSP & USB and HDMI ASSYS.................................................................................................................................108
11.3 MAIN ASSY ..............................................................................................................................................................112
11.4 POWER PACK ASSY................................................................................................................................................116
11.5 TRANS2 and TRANS3 ASSYS.................................................................................................................................120
11.6 COMPONENT VIDEO ASSY....................................................................................................................................122
11.7 5.1CH INPUT and HEAD PHONE ASSYS ...............................................................................................................123
11.8 FRONT DISPLAY, ROTARY ENCODER, POWER KEY and JOG ASSYS ...............................................................124
11.9 DIGITAL INPUT and FRONT VIDEO ASSYS ...........................................................................................................128
11.10 REGULATOR ASSY................................................................................................................................................129
11.11 VIDEO ASSY ..........................................................................................................................................................130
11.12 FRONT IN ASSY.....................................................................................................................................................131
11.13 TRANS1 and PRIMARY ASSYS.............................................................................................................................132
11.14 HDMI & DSP & USB ASSY.....................................................................................................................................134
12. ELECTRICAL PARTS LIST .............................................................................................................................................138
4
1
2 3 4
VSX-918V-K
5
• 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)
6 7 8

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

A
B

1.2 AMPLIFIER FAILURE DIAGNOSIS FLOW CHART

5
6 7 8
VSX-918V-K
C
D
E
F
5
1
RECEIVER
INPUT SELECT
TV CTRL
SOURCE
TV DVR
SIRIUS
AM
XM
FM
CD-R
CD
PORTABLE
iPodDVD
RECEIVER
RECEIVER CONTROL
TV CONTROL
AV
PARAMETER
TOP MENU
T.EDIT
MENU
RETURNSETUP
GUIDE
CATEGORY
ENTER
TUNE
TUNE
ST ST
MPX
DIMMER SLEEP
D.ACCESS
SIGNAL SEL
iPod CTRL
TV CH
INPUT
SELECT
RECEIVER
MULTI CONTROL
MASTER
VOLUME
ONE TOUCH
COPY
CH+CH
-
AUTO/DIRECT
PHASE
MUTE
ADV SURR
SOUND
RETRIEVER
STEREO/
A.L.C.
ACOUSTIC
EQ
CH SEL
STANDARD
DIALOG
LEVEL
REC ANT AUDIO
SUBTITLE
DVD MEMORY
REC STOP
HDD
TUNER DISP
CLASS
DISC
SR
+
ENTER
INFO
SHIFT
TV VOL
MIDNIGHT
ANALOG ATT
+
10
Amplifier section
Front . . .95 W (20 Hz to 20 kHz, THD 0.2 %, 8 Ω)
1
Rated power output
(surround / 20 Hz to 20 kHz, THD 0.06 %, 8 Ω)
Front . . . . . . . . . . . . . . . . . . . . . .95 W per channel
Center. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 W
Surround. . . . . . . . . . . . . . . . . . .95 W per channel
(surround / 1 kHz, THD 0.05 %, 8 Ω)
Front . . . . . . . . . . . . . . . . . . . . .120 W per channel
Center. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 W
Surround. . . . . . . . . . . . . . . . . .120 W per channel
Audio section
AUX, CD, CD-R/TAPE/MD, DVD/BD,
TV/SAT, DVR/VCR . . . . . . . . . . . . . .335 mV/47 k
Ω
AUX, CD, CD-R/TAPE/MD, DVD/BD,
TV/SAT, DVR/VCR . . . . .5 Hz to 100 000 Hz dB
CD-R/TAPE/MD, DVR/VCR . . . . . . 335 mV/2.2 kΩ
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)
AUX, CD, CD-R/TAPE/MD, DVD/BD,
TV/SAT, DVR/VCR . . . . . . . . . . . . . . . . . . . . .96 dB
Continuous power output
(stereo)
Rated power output
Input (Sensitivity/Impedance)
Frequency response
Output (Level/Impedance)
Tone control
Signal-to Noise Ratio [EIA, at 1 W (1 kHz)]
AUX, CD, CD-R/TAPE/MD, DVD/BD,
TV/SAT, DVR/VCR . . . . . . . . . . . . . . . . . . . . 79 dB
Note
1Continuous 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.
Video Section
Input (Sensitivity/Impedance)
DVR/VCR, DVD/BD, TV/SAT . . . . . . . 1 Vp-p/75 Ω
Output (Level/Impedance)
DVR/VCR, MONITOR OUT . . . . . . . . 1 Vp-p/75 Ω
Frequency response
DVR/VCR, DVD/BD,
TV/SAT MONITOR . . . . . 5 Hz to 7 MHz dB
Signal-to-Noise Ratio. . . . . . . . . . . . . . . . . . 55 dB
Crosstalk. . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 dB
Component video section
Input (Sensitivity)
DVD/BD, TV/SAT, DVR/VCR . . . . . . . 1 Vp-p/75 Ω
Output (Level/Impedance)
MONITOR OUT. . . . . . . . . . . . . . . . . . 1 Vp-p/75 Ω
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 µV/75 Ω)
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 Ω 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
Other Input/Output Section
HDMI terminal
Input . . . . . . . . . . . . . . . . . . . . . . . . . . 19 pin x2
Output. . . . . . . . . . . . . . . . .19 pin (5 V, 55 mA)
XM connector . . . . . . . . . . . . .4 pin (5 V, 370 mA)
SIRIUS connector. . . . . . . . . . . . . . . . . . . . . .8 pin
Miscellaneous
Power requirements. . . . . . . . . . .AC 120 V/60 Hz
Power consumption. . . . . . . . . . . . . . . . . . .300 W
In standby . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 W
Dimensions
. . . . . 420 mm (W) x 158 mm (H) x 352.5 mm (D)
. . . . . . . 16 /
16 in. (W) x 6 /4 in. (H) x 13 /8 in. (D)
917
Weight (without package) . . . . 8.1 kg (17 lb 9 oz)
Furnished Parts
Microphone (for Auto MCACC setup) . . . . . . . . .1
Remote control . . . . . . . . . . . . . . . . . . . . . . . . . .1
Dry cell batteries (AA size IEC R6). . . . . . . . . .2
AM loop antenna . . . . . . . . . . . . . . . . . . . . . . . . .1
FM wire antenna . . . . . . . . . . . . . . . . . . . . . . . . .1
Operating instructions
Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the double-D symbol are trademarks of Dolby Laboratories.
"DTS" is a registered trademark of DTS, Inc. and "DTS 96/24" is a trademark of DTS, Inc.
Accessories
Remote control (VSX-918V-K : XXD3147) (VSX-918V-S : XXD3161) (VSX-818V-K : XXD3152) (VSX-818K-S : XXD3163)
AM loop antenna (ATB7013)
FM wire antenna (ADH7030)
AA size IEC R6 Dry cell batteries (x2)
Microphone (for Auto MCACC setup) (APM7008)

2. SPECIFICATIONS

2.1 SPECIFICATIONS

A
2 3 4
B
C
D
E
F
6
1
2 3 4
VSX-918V-K
5
Front panel
Illustration shows the VSX-918V model
1 STANDBY/ON
2 INPUT SELECTOR dial
Selects an input source.
3 Input select buttons
Selects an input source.
4 Digital Precision Processing indicator
(VSX-918V model only) Lights to indicate digital processing.
5 Character display
6
MCACC indicator
Lights when Acoustic Calibration EQ is on (Acoustic Calibration EQ is automatically set to ALL CH ADJUST after the Auto MCACC Setup or EQ Auto Setup).
7 MASTER VOLUME dial
8
AUDIO/VIDEO input
9
iPod DIRECT terminal
Use to connect your Apple iPod as an audio source.
MASTER VOLUME
VSX-918V
STANDBY/ON
PHONES
DVD DVRTV
VIDEO/PORTABLE
CD/CD-R
iPod
FM/AM
XM
SPEAKERS
VSB MODE
SIGNAL
SELECT
SOUND
RETRIEVER
SIRIUS
AUX
PHASE
CONTROL
INPUT
SELECTOR
ADVANCED SURROUND
STEREO /
A.L.C.
STANDARD
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
ACOUSTIC
EQ
PHASE
CONTROL
AUTO SURR /
STREAM DIRECT
MCACC
PORTABLE
iPod DIRECT
AUDIO RLVIDEO
DIGITAL PRECISION
PROCESSING
ADVANCED SURROUND
STEREO /
A.L.C.
STANDARD
ACOUSTIC
EQ
PHASE
CONTROL
AUTO SURR /
STREAM DIRECT
PHONES
SPEAKERS
VSB MODE
SIGNAL SELECT
SOUND
RETRIEVER
1
12
23 4 6 7
20
5
10
11
14 15 16 17
18 19
13
8 9
10 MCACC PORTABLE jack
Use to connect a microphone when performing Auto MCACC setup, or connect an auxiliary component using a stereo mini-jack cable.
11 PHONES jack
Use to connect headphones (when connected, there is no sound output from the speakers (except speaker system B connections)).
12 ST +/–
Use to select preset radio stations.
13 TUNE +/–
Used to find radio frequencies.
14 SOUND RETRIEVER
Press to restore CD quality sound to compressed audio sources.
15 VSB MODE
Press to switch on/off Virtual Surround Back (VSB) mode.
16 SPEAKERS
Use to change the speaker system and the impedance setting.
17SIGNAL SELECT
Selects an input signal.

2.2 PANEL FACILITIES

6 7 8
A
B
C
5
VSX-918V-K
6 7 8
D
E
F
7
1
18 PHASE CONTROL
Press to switch on/off Phase Control.
19 ACOUSTIC EQ
Press to select an Acoustic Calibration EQ setting.
20Listening mode buttons
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.
HDMI
(
DVD / BD) IN
IN
RL
IN
AUX
CD
IN
OUT
DVD / BD
TV / SAT
FRONT
DVD5.1 CH INPUT
IN
IN
DVR / VCR
DVR / VCR IN
TV / SAT IN
DVD / BD IN
AM
LOOP
IN
OUT
DIGITAL IN
CEN-
TER
SURROUND
DVD 5.1CH INPUT
SIRIUS IN
AC OUTLET
COMPONENT VIDEO
R
L
SUB WOOFER
OPT
OPT
(
TV / SAT
)
(CD)
R
A
RETNECDNUORRUSTNORF
RRLLL
FM UNBAL
CONTROL
ANTENNA
DVR / VCR OUT
MONITOR OUT
VOIDUAIDEO
XM
IN
IN
OUT
DIGITAL IN
COAX
(
DVD / BD
)
(
ASSIGNABLE
)
PLAY
CD-R
/ TAPE
/ MD
(
ASSIGNABLE
)
(
ASSIGNABLE
)
S P E A K E R S
1
1
1
2
(
TV / SAT) IN
OUT
2
REC
SUB WOOFER PREOUT
B
(
DVR / VCR) IN
Y
PBP
R
MONITOR OUT
(
ASSIGNABLE
)
3
(
DVD / BD) IN
1
(
TV / SAT) IN
2
Y
PBP
R
HDMI
(
DVD / BD) IN
IN
RL
IN
AUX
CD
IN
OUT
DVD / BD
TV / SAT
FRONT
DVD5.1 CH INPUT
IN
IN
DVR / VCR
DVR / VCR IN
TV / SAT IN
DVD / BD IN
AM
LOOP
IN
OUT
DIGITAL IN
CEN-
TER
SURROUND
DVD 5.1CH INPUT
SIRIUS IN
AC OUTLET
COMPONENT VIDEO
R
L
SUB WOOFER
OPT
OPT
(
TV / SAT
)
(CD)
R
A
RETNECDNUORRUSTNORF
RRLLL
FM UNBAL
CONTROL
ANTENNA
DVR / VCR OUT
MONITOR OUT
VIDEOOIDUA
XM
IN
IN
OUT
DIGITAL IN
COAX
(
DVD / BD
)
(
ASSIGNABLE
)
CD-R
/ TAPE
/ MD
(
ASSIGNABLE
)
(
ASSIGNABLE
)
S P E A K E R S
1
1
1
2
(
TV / SAT) IN
OUT
2
SUB WOOFER PREOUT
B
(
DVR / VCR) IN
Y
PBP
R
MONITOR OUT
(
ASSIGNABLE
)
3
(
DVD / BD) IN
1
(
TV / SAT) IN
2
Y
PBP
R
VSX-918V
A
B
2 3 4
C
D
E
F
8
1
2 3 4
VSX-918V-K
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.
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 Auto Surround or XM HD Surround is on.
8 ATT
Lights when ANALOG ATTis used to attenuate (reduce) the level of the analog input signal.
9 SLEEP
Lights when the sleep mode is active.
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.
11 Speaker indicators
Lights to indicate the current speaker system,
A and/or B.
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.
17 LOUDNESS
Lights during Loudness listening.
18 Master volume level
Shows the overall volume level.
19 MCACC channel EQ / Sound Retriever / HDMI indicators
These indicators show the EQ balance for each channel in Checking your Acoustic Calibration EQ settings. Also, L and R light when the Sound Retriever is active.
In addition, the HDMI connection state is displayed as shown below.
Blinks when connecting an HDMI-equipped component: lights when the component is connected.
6
6
0
L C R
L
s
R
s
[]
[]
[]
[]
[]
HDMI indicator
Display
1 SIGNAL indicators
Lights to indicate the type of input signal:
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.
6
6
0
L C R
L
s
R
s
[] [] []
[]
[]
40
125
250 4K13
K
SPAB
7654321 118 910
12
1514 16 1713 18 19
5
6 7 8
A
B
C
D
5
VSX-918V-K
6 7 8
E
F
9
1
3 MULTI CONTROL buttons
Press to select control of other components.
TV CTRL,PORTABLE,CD-R,XM and SIRIUS
buttons can be used with SHIFT button.
4 RECEIVER CONTROL buttons
AUTO/DIRECT
Switches between Auto surround mode (Auto playback) and Stream Direct playback. 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.
ACOUSTIC EQ
Press to select an Acoustic Calibration EQ setting.
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.
Remote control
Illustration shows the VSX-918V model
1 INPUT SELECT Use to select the input source (use SHIFT for INPUT SELECT ).
2 RECEIVER
Switches the receiver between standby and on.
RECEIVER
INPUT SELECT
TV CTRL
SOURCE
TV DVR
SIRIUS
AM
XM
FM
CD-R
CD
PORTABLE
iPodDVD
RECEIVER
RECEIVER CONTROL
TV CONTROL
AV PARAMETER
TOP MENU
T.EDIT MENU
RETURNSETUP
GUIDE
CATEGORY
ENTER
TUNE
TUNE
ST ST
MPX
DIMMER SLEEP
D.ACCESS
SIGNAL SEL
iPod CTRL
TV CH
INPUT
SELECT
RECEIVER
MULTI CONTROL
MASTER VOLUME
ONE TOUCH
COPY
CH
+
CH
-
AUTO/ DIRECT
PHASE
MUTE
ADV SURR
SOUND
RETRIEVER
STEREO/
A.L.C.
ACOUSTIC
EQ
CH SEL
STANDARD
DIALOG
LEVEL
REC ANT AUDIO
SUBTITLE
DVD MEMORY
REC STOP
HDD
TUNER DISP
CLASS
DISC
SR
+
ENTER
INFO
SHIFT
TV VOL
MIDNIGHT
ANALOG ATT
+
10
4
7
5
3
8
9
6
10
12
11
13
14
1
2
GUIDE
Displays/changes the subtitles on multilingual DVDs.
LEVEL +/–
Use to adjust the channel levels.
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.
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.
CATEGORY
Press to browse digital radio broadcasts.
SETUP
Press to access the System Setup menu. Also functions as the SETUP button for DVD/DVR units.
A
2 3 4
B
C
D
E
F
10
1
VSX-918V-K
2 3 4
5
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
The main buttons ( , , etc.) are used to control a component after you have selected it using the MULTI CONTROL buttons.
The controls above these buttons can be accessed after you have selected the corresponding MULTI CONTROL button (for example DVD,DVR or TV (when connected to a DTV)).
SUBTITLE*
Displays/changes the subtitles included in multilingual DVD-Video discs.
REC*
Start recording.
AUDIO*
Changes the audio language or channel on DVD discs.
HDD*, DVD*
These buttons switch between the hard disk and DVD controls for HDD/DVD recorders.
REC STOP*
Stops recording.
ANT
Use to select the VHF/UHF antennas or Cable TV.
MEMORY
Use to register a song title you are currently listening to.
8 Number buttons and other component controls
Use the number buttons to directly select a radio frequency or the tracks on a CD, DVD, etc. 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.
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 pressingSLEEP once.
SIGNAL SEL
Use to select an input signal.
SR + (VSX-918V model only) Switches the SR+ mode on/off.
iPod CTRL
Switches between the iPod controls and the receiver controls.
DISC (ENTER)
Use to enter commands for TV or DTV, and also use to select a disc in a multi-CD player.
9 INFO
Use to bring up information screens on a digital TV.
10 SHIFT
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
Press to turn on/off other components connected to the receiver.
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 are dedicated to control the TV assigned to the TV CTRL button. Thus if you only have one TV to hook up to this system assign it to the TV CTRL MULTI CONTROL button. If you have two TVs, assign the main TV to the TV CTRLbutton.
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.
6 7 8
A
5
VSX-918V-K
6 7 8
B
C
D
E
F
11
1
Using this receiver with a Pioneer flat panel TV
(VSX-918V model only)
If you have a Pioneer flat panel TV , you can
1
use an SR+ cable to connect it to this unit and take advantage of various convenient features, such as automatic video input switching of the flat panel TV when the input is changed.
HDMI
(
DVD / BD) IN
IN
RL
IN
AUX
CD
IN
OUT
DVD / BD
TV / SAT
FRONT
DVD5.1 CH INPUT
IN
IN
DVR / VCR
DVR / VCR IN
TV / SAT IN
DVD / BD IN
AM
LOOP
IN
OUT
FM UNB
AL
CONTROL
ANTENNA
DVR / VCR OUT
MONITOR OUT
AOEDIVOIDU
XM IN
IN
OUT
DIGITAL IN
COAX
(
DVD / BD
)
(
ASSIGNABLE
)
CD-R
/ TAPE
/ MD
( ASSIGNABLE
)
(
1
1
(
TV / SAT) IN
OUT
2
SUB WOOFER PREOUT
OUT
CONTROL
Pioneer plasma display
VSX-918V
SR+ mini-plug cable (ADE7095)
SERVICE PARTS
Note
1 This receiver is compatible with all Pioneer flat panel TVs from 2003 onward.
Use a 3-ringed miniplug SR+ cable to
1
connect the CONTROL INjack of this receiver with the
CONTROL OUT of your flat panel TV.
Before you can use the extra SR+ features, you need to make a few settings in the receiver.
To make the most of the SR+ features, you should connect your source components (DVD player, etc.) in a slightly different way to that described in this chapter. For each component, connect the video output directly to the flat panel TV, and just connect the audio (analog and/or digital) to this receiver.
Using the SR+ mode with a Pioneer flat panel TV
When connected using an SR+ cable, a number of features become available to make using this receiver with your Pioneer flat panel TV even easier. These features include:
• On-screen volume display.
• On-screen display of listening mode.
• Automatic video input switching on the flat panel TV.
• Automatic volume muting on the flat panel TV.
2
1 Make sure that the flat panel TV and this receiver are switched on and that they are connected with the SR+ cable.
2 To switch SR+ mode on/off, press
RECEIVER, then the SR+ button. The front panel display shows SR+ ON or OFF.
Note
1• The 3-ringed SR+ cable from Pioneer is commercially available under the part number ADE7095. Contact the Pioneer
Customer Support division for more information on obtaining an SR+ cable (you can also use a commercially available 3­ringed mini phone plug for the connection).
• If you connect to a Pioneer flat panel TV using an SR+ cable, you will need to point the remote control at the flat panel TV remote sensor to control the receiver. In this case, you won’t be able to control the receiver using the remote control if you switch the flat panel TV off.
DVD player
VSX-918V
Pioneer flat panel TV
Satellite receiver, etc
VIDEO
INPUT 1
VIDEO
INPUT 2
TV/SAT
AUDIO IN
DVD/BD
AUDIO IN
MASTER VOLUME
VSX-918V
STANDBY/ON
PHONES
RVDDVDTV
VIDEO/PORTABLE
CD/CD-R iPod
FM/AM
XM
SPEAKERS
VSB MODE
SIGNAL SELECT
SOUND RETRIEVER
SIRIUS
AUX
PHASE CONTROL
INPUT
SELECTOR
ADVANCED SURROUND
STEREO / A.L.C.
STANDARD
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
ACOUSTICEQPHASE
CONTROL
AUTO SURR /
STREAM DIRECT
MCACC
PORTABLE
iPod DIRECT
AUDIORLVIDEO
DIGITAL PRECISION
PROCESSING
2 The automatic volume muting feature is enabled separately.
RECEIVER
INPUT SELECT
TV CTRL
SOURCE
TV DVR
SIRIUS
AM
XM
FM
CD-R
CD
PORTABLE
iPodDVD
RECEIVER
MULTI CONTROL
TV CONTROL
MPX
DIMMER
iPod CTRL
SLEEP
D.ACCESS
SIGNAL SEL
INPUT
TUNER DISP
CLASS
DISC
SR+
ENTER
INFO
MIDNIGHT
ANALOG ATT
+10
2 3 4
A
B
C
D
E
F
12
VSX-918V-K
1
2 3 4
5
To keep the product quality after servicing, confirm recommended check points shown below.
No.
Procedure Check points
1
Confirm whether the customer complain has been solved. If the customer complain occurs with the particular source, such as Dolby Digital, DTS, AAC, DVD-A and HDMI, input it for the operation check.
The customer complain must not be reappeared. Video, Audio and operations must be normal.
2
Check the analog audio playback. (Make the analog connections with a DVD player.)
Each channel audio and operations must be normal.
3
Check the digital audio playback. (Make the digital connections with a DVD player.)
Each channel audio and operations must be normal.
4
Check surround playback. (Select Surround mode and check the multichannel operations via the DSP circuit.)
Each channel audio and operations must be normal.
5
Check the video outputs. (Connect with a DVD player.)
Video and operations must be normal.
6
Check the sound from headphone output. Sound must be normal, without noise.
7
Check the appearance of the product. No scratches or dirt on its appearance after receiving
it for service.
See the table below for the items to be checked regarding video and audio:
Items to be checked regarding video Item to be checked regarding audio
Block noise Distortion Horizontal noise Noise Dot noise Volume too low Disturbed image (video jumpiness) Volume too high Too dark Volume fluctuating Too bright Sound interrupted Mottled color
Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools:
CLEANING
Position to be cleaned Cleaning tools
Fans Cleaning paper : GED-008
Name Jig No. Remarks
13P board to board extension jig
cable
GGD1483
Diagonosis
21P board to board extension jig
cable
GGD1485
Diagonosis
Jigs list
6 7 8

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

A
B
C
D
E

3.2 JIGS LIST

5
6 7 8
VSX-918V-K
F
13
1
H
FRONT DISPLAY
ASSY
R
FRONT VIDEO ASSY
I
ROTARY ENCODER ASSY
T
FRONT IN ASSY
A
MAIN ASSY
N
REGULATOR ASSY
C
POWER PACK ASSY
V
HDMI&DSP &USB ASSY
POWER KEY
ASSY
J
TRANS 3
ASSY
G
BIND
ASSY
PRIMARY
ASSY
Q
TRANS 1
ASSY
S
TRANS 2
ASSY
D
HEADPHONE
ASSY
O
FM/AM TUNER UNIT
P
VIDEO ASSY
M
DIGITAL INPUT ASSY
F
5.1CH INPUT ASSY
E
COMPONENT VIDEO ASSY
U
SIRIUS ASSY
1..HDMI&DSP&USB ASSY AWX9162
NSP 1..COMPLEX ASSY XWK3340
2..FRONT DISPLAY ASSY XWZ4285
2..ROTARY ENCODER ASSY XWZ4286
2..POWER KEY ASSY XWZ4288
2..JOG ASSY XWZ4289
2..VIDEO ASSY XWZ4294
2..DIGITAL INPUT ASSY XWZ4299
2..FRONT VIDEO ASSY XWZ4300
2..PRIMARY ASSY XWZ4305
2..REGULATOR ASSY XWZ4316
2..TRANS 1 ASSY XWZ4320
2..HEADPHONE ASSY XWZ4321
NSP 1..AMP ASSY XWK3348
2..POWER PACK ASSY XWZ4325
2..TRANS 2 ASSY XWZ4335
2..TRANS 3 ASSY XWZ4337
2..COMPONENT VIDEO ASSY XWZ4339
2..5.1CH INPUT ASSY XWZ4341
2..SIRIUS ASSY XWZ4343
2..BIND ASSY XWZ4344
1..MAIN ASSY XWK3362
1..FRONT IN ASSY XWK3366
1..FM/AM TUNER UNIT AXX7210
Mark No. Description Part No. Mark No. Description Part No.
LIST OF ASSEMBLIES
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.
JOG ASSY
K
VSX-918V

3.3 PCB LOCATIONS

A
2 3 4
B
C
D
E
F
14
1
2 3 4
VSX-918V-K
H
FRONT DISPLAY
ASSY
R
FRONT VIDEO ASSY
I
ROTARY ENCODER ASSY
T
FRONT IN ASSY
A
MAIN ASSY
N
REGULATOR ASSY
C
POWER PACK ASSY
W
HDMI ASSY
B
DSP&USB ASSY
POWER KEY
ASSY
J
TRANS 3
ASSY
G
BIND
ASSY
PRIMARY
ASSY
Q
TRANS 1
ASSY
S
TRANS 2
ASSY
D
HEADPHONE
ASSY
O
FM/AM TUNER UNIT
P
VIDEO ASSY
M
DIGITAL INPUT ASSY
F
5.1CH INPUT ASSY
E
COMPONENT VIDEO ASSY
U
SIRIUS ASSY
1..HDMI ASSY AWX8966
1..DSP&USB ASSY AWX9163
NSP 1..COMPLEX ASSY XWK3335
2..FRONT DISPLAY ASSY XWZ4284
2..ROTARY ENCODER ASSY XWZ4286
2..POWER KEY ASSY XWZ4287
2..JOG ASSY XWZ4289
2..VIDEO ASSY XWZ4292
2..DIGITAL INPUT ASSY XWZ4299
2..FRONT VIDEO ASSY XWZ4300
2..PRIMARY ASSY XWZ4305
2..REGULATOR ASSY XWZ4316
2..TRANS 1 ASSY XWZ4320
2..HEADPHONE ASSY XWZ4321
NSP 1..AMP ASSY XWK3348
2..POWER PACK ASSY XWZ4325
2..TRANS 2 ASSY XWZ4335
2..TRANS 3 ASSY XWZ4337
2..COMPONENT VIDEO ASSY XWZ4339
2..5.1CH INPUT ASSY XWZ4341
2..SIRIUS ASSY XWZ4343
2..BIND ASSY XWZ4344
1..MAIN ASSY XWK3358
1..FRONT IN ASSY XWK3366
1..FM/AM TUNER UNIT AXX7210
Mark No. Description Part No. Mark No. Description Part No.
LIST OF ASSEMBLIES
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.
JOG ASSY
K
VSX-818V
5
6 7 8
A
B
C
D
E
F
5
VSX-918V-K
6 7 8
15
1
5/280
14/200
35/320
9/90
4/230
19/170
7/190
11/120
9/230
11/200
*7
3/300
1912
XDD3248
CN5
5
CN805
CN1
21
13 21
CN816
CN111
21
CN2
CN806
CN815
15
CN109
15
CN704
CN110
17
17
1918
14
CN4
14
CN106
XDD3249
XDD3252
35
CN3
1917
9
CN122
35
CN112
CN401
CN101CN107
XDD3247
1906
XDX3063
1904
3/350
1902
CN956
CN953
CN951
17/110
CN901
1905
1908
CN105
CN129
7
19
XDD3253
CN803
CN302
6
CN1903
CN103
11
1911
1919
XDD3189
XDD3235
CN303
CN310
CN354
CN307
CN132
1903
XDD3258
CN701
CN252
810
XDX3066
J43
CN702
CN251
CN800
2/500 XDX3054
511
J42
5/125
D15A05-125-2651
XDD3200
XDX3064
CN401
404
J22
E.g. 7/140
140: Insulation length (mm)
7: Number of contacts (pin)
WIRE INDICATION
XXM3012
FAN
A 1/3 - A 3/3
A
FRONT DISPLAY ASSY (VSX-918V:XWZ4285)
H
T
F
P
DIGITAL INPUT ASSY (XWZ4299)
5.1CH INPUT ASSY (XWZ4341)
M
N
MAIN ASSY
(VSX-918V : XWK3362)
VIDEO ASSY (VSX-918V : XWZ4294)
POWER PACK ASSY (XWZ4325)
REGULATOR ASSY (XWZ4316)
FRONT IN ASSY (XWK3366)
HDMI&DSP&USB ASSY
(VSX-918V:AWX9162)
C 1/2 -
C 2/2
C
ROTARY ENCODER ASSY (XWZ4286)
I
FRONT VIDEO ASSY (XWZ4300)
R
FM/AM TUNER
UNIT (AXX7210)
(Note : No schematic diagram)
V 1/5 - V 5/5
V
2 3 4

4. BLOCK BIAGRAM

4.1 OVERALL WIRING CONNECTION DIAGRAM (VSX-918V)

A
B
C
D
E
F
16
1
VSX-918V-K
2 3 4
6/400
CN7301
EXCEPT /SP,SF MODEL
AC CORD
CN551
FU1
CN51
PRIMARY
55
J2
J1
J21
11/300
D20PYY1130E
D20PYY0410E
4/100
J52
CN1201
851
XDX3065
J47
J5
891
J7 J3 J4 J6
1551
470
D15A03-100-2651
D15A03-100-2651
471
J44
3/100
512
3/100
J41
501
1.5mm FLAT CABLE
2.0mm CABLE CONNECTOR
2.0mm FLAT CABLE
1.25mm REVERSE FFC
1.25mm FFC
2.0mm CABLE HOLDER
1.5mm CABLE HOLDER
1.25mm FFC CONNECTOR
EH CONNECTOR
B*B-EH
B*B-PH-K-S PH CONNECTOR
1.0mm FFC
1.25mm FFC CONNECTOR(L)
1.0mm FFC CONNECTOR
BOARD IN
AC CODE CONNECTOR
AC CODE SOCKET
1.25mm BOARD to BOARD SOCKET
1.25mm BOARD to BOARD PLUG
2.0mm BOARD to BOARD PLUG
2.0mm BOARD to BOARD SOCKET
MAIN TRANS
D
S
G
Q
E
COMPONENT VIDEO ASSY
(XWZ4339)
SIRIUS ASSY (XWZ4343)
U
TRANS2 ASSY (XWZ4335)
TRANS 1 ASSY (XWZ4320)
(XWZ4305)
PRIMARY ASSY
TRANS3 ASSY (XWZ4337)
POWER KEY ASSY (VSX-918V:XWZ4288)
J
JOG ASSY (XWZ4289)
K
HEAD PHONE ASSY (XWZ4321)
O
k
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.
5
6 7 8
A
B
C
D
5
VSX-918V-K
6 7 8
E
F
17
1
XDD3256
1910
5/200
14/200
23/320
5/60
7/190
9/100
4/300
17/110
7/190
13/170
11/120
9/230
11/200
3/300
XDD3248
1912
5
CN5
21
13 21
21
CN816
CN1
CN815
CN805
15
CN111
15
CN109
CN704
CN806
CN2
17
CN110
17
CN401
XDD3252
1903
CN4
14 23
5
23
CN106
14
CN6
1916
XDD3250
CN7
CN112
CN1002
CN1001
1909
XDD3255
9
CN104
7
CN107 CN101 CN108
CN122
XDD3247
1906
XDX3063
1904
3/350
1902
CN956
CN953
CN951
1905
CN901
7
13
XDD3259
1907
CN130
CN105
CN803
CN302
6
CN1903
11
1911
XDD3189
XDD3235
1919
CN103
CN303
CN310
CN304
CN354
CN307
XDD3258
CN132
1903
CN701
CN252
810
XDX3066
J43
CN702
CN251
CN800
2/500
XDX3054
511
J42
5/125
D15A05-125-2651
XDD3200
XDX3064
CN401
404
J22
E.g. 7/140
140: Insulation length (mm)
7: Number of contacts (pin)
WIRE INDICATION
XXM3012
FAN
A 1/3 - A 3/3
A
FRONT DISPLAY ASSY (VSX-818V:XWZ4284)
H
T
F
P
DIGITAL INPUT ASSY (XWZ4299)
5.1CH INPUT ASSY (XWZ4341)
M
N
MAIN ASSY
(VSX-818V : XWK3358)
VIDEO ASSY (VSX-818V : XWZ4292)
POWER PACK ASSY (XWZ4325)
REGULATOR ASSY (XWZ4316)
FRONT IN ASSY (XWK3366)
DSP&USB ASSY (VSX-818V : AWX9163)
HDMI ASSY
B 1/4 - B 4/4
B
W
C 1/2 -
C 2/2
C
ROTARY ENCODER ASSY (XWZ4286)
I
FRONT VIDEO ASSY (XWZ4300)
R
(AWX8966)
FM/AM TUNER
UNIT (AXX7210)
(Note : No schematic diagram)
(No schematic diagram)
2 3 4

4.2 OVERALL WIRING CONNECTION DIAGRAM (VSX-818V)

A
B
C
D
E
F
18
1
2 3 4
VSX-918V-K
6/400
CN7301
AC CORD
CN551
FU1
CN51
55
J1
J2
J21
11/300
D20PYY1130E
D20PYY0410E
4/100
J52
851
XDX3065
J47
891
J7 J5 J3 J4 J6
1551
470
D15A03-100-2651
D15A03-100-2651
471
J44
3/100
512
3/100
J41
501
CN1201
1.5mm FLAT CABLE
2.0mm CABLE CONNECTOR
2.0mm FLAT CABLE
1.25mm REVERSE FFC
1.25mm FFC
2.0mm CABLE HOLDER
1.5mm CABLE HOLDER
1.25mm FFC CONNECTOR
EH CONNECTOR
B*B-EH
B*B-PH-K-S PH CONNECTOR
1.0mm FFC
1.25mm FFC CONNECTOR(L)
1.0mm FFC CONNECTOR
BOARD IN
AC CODE CONNECTOR
AC CODE SOCKET
1.25mm BOARD to BOARD SOCKET
1.25mm BOARD to BOARD PLUG
2.0mm BOARD to BOARD PLUG
2.0mm BOARD to BOARD SOCKET
MAIN TRANS
D
S
G
Q
E
COMPONENT VIDEO ASSY
(XWZ4339)
SIRIUS ASSY (XWZ4343)
U
TRANS2 ASSY (XWZ4335)
TRANS 1 ASSY (XWZ4320)
(XWZ4305)
PRIMARY ASSY
TRANS3 ASSY (XWZ4337)
POWER KEY ASSY (VSX-818V:XWZ4287)
J
JOG ASSY (XWZ4289)
K
HEAD PHONE ASSY (XWZ4321)
O
k
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.
5
6 7 8
A
B
C
D
E
5
6 7 8
VSX-918V-K
F
19
1
SW
HDMI REPEATER
To DSP section
To Sys uCom
CN307 CN105
SL/SR
HDMI
IN1
HDMI
IN2
HDMI
OUT
C
OPT2
XM RADIO
OPT1
BU9450KV
XMDT
SERIAL ROM
HDMI
BLOCK
PDC173A8
4M
AWX9162 : /KU AWX8977 : (Others)
COAX1
USB A-TYPE
TELECHIPS
USB
AK4114VQ
74VHC157
(DIR)
CD-R OUT
SIRIUS
VCR/DVR OUT
L/R
(ADC)
(for DECODE)
LPF
DSP IC
DSPC56371AF180
IC104
(SW)
NJM4565
(C)
IC103
IC104
(SL/SR)
(DAC)
(CODEC)
AK4626AVQ
IC105
(FL/FR)
FUNCTION SELECTOR
FRONT AUDIO IN
VIDEO(Front)
DVD/LD
CD-R/TAPE
TV/SAT
L/R
L/R
L/R
L/R
L/R
L/R
AUX
CD
VCR/DVR
L/R
L/R
L/R
MODULE
TUNER
L/R
R
MIC
L
L/R
(For Setup)
BLOCK DIAGRAM FOR VSX-918V
To
EVOL/SELE
IC108
BD3474KS2
LIP SYNC
ML87V5002
74VHC157
IC611
CXB1444R
(HDMI
CABLE
EQ SW)
IC651
SiI9013CLU
(HDMI
RECEIVER)
IC801
PEG118A
(HDMI uCom)
IC861
FLASH
ROHM
IC701
SiI9134CTU
(HDMI
TRANSMITTER)
Cr
(DRIVER)
NJM2581M
6dB
IC553
OUT
COMPONENT
Y
Cb
TC74HC4052AF
6dB
6dB
COMPONENT3
Cb
Cr
Y
Cr3
Cr2
Cr1
Cr Cb
Cb2
Cb1
Cb3
Y
COMPONENT2
Cr
Cb
TC74HC4052AF
Y2
IC552
(COMPO SEL)
Cb
Cr
Y
COMPONENT1
Y3
Y1
Y
IC551
(COMPO SEL)
CN2CN109
CN5CN1903
V
HDMI & DSP & USB ASSY
1/2
V
HDMI & DSP & USB ASSY
2/2
A
MAIN ASSY
E
COMPONENT VIDEO ASSY
F
5.1CH INPUT ASSY
M
DIGITAL INPUT ASSY

4.3 BLOCK DIAGRAM (VSX-918V)

A
B
C
D
2 3 4
E
F
20
1
VSX-918V-K
2 3 4
GND
GND
GND
GND
CN111 CN302
SW2
SW1
FUNCTION SELECTOR
(SL/SR)
A. MUTE
(C)
A. MUTE
A. MUTE
Q303
SW PREOUT
RY50 1
SP B L/R
Q631
30dB
RY75 3
C
SL/SR
Ton e
9.5dB
9.5dB
(FL/FR)
IC108
BD3474KS2
CN110 CN704
CN702
: AUDIO SIGNAL FLOW
: VIDEO SIGNAL FLOW
Q601
30dB
IC601 (1/2) IC603 (2/3)
RY75 1
RY75 2
FL/FR
A. MUTE
Q1551
1551
VIDEO (Front)
CN901 CN301
9.5dB
9.5dB
GND
A. MUTE
Q651
30dB
IC601 (2/2) IC603 (3/3)
IC603 (1/3)
POWER PACK ASSY
DVR REC
MONITOR
TV/SAT
DVD/LD
CN310
DVR
(COMPOSITE SEL)
NJM2595M
IC301
OSD
IC302
NJM2243M
(VIDEO/OSD SEL)
IC851
(PDC132A)
P
VIDEO ASSY
O
HEAD PHONE ASSY
C
POWER PACK ASSY
5
6 7 8
A
B
C
D
E
VSX-918V-K
5
6 7 8
F
21
1
SW
CN307
CN2CN109
CN105
SL/SR
HDMI
IN1
HDMI
IN2
HDMI
OUT
C
OPT2
XM RADIO
OPT1
BU9450KV
XMDT
SERIAL ROM
IC101
CXB1444R
(HDMI SW)
IC102
TC7MB3253FK
(DDC SW)
CN1001
Main uCom
PDC172A8
1M
AWX9163 : /KU AWX9164 : /MY AWX8979 : (Others)
COAX1
USB A-TYPE
TELECHIPS
USB
AK4114VQ
74VHC157
(DIR)
CD-R OUT
SIRIUS
VCR/DVR OUT
L/R
(ADC)
(for DECODE)
LPF
DSP IC
DSPC56371AF180
IC104
(SW)
NJM4565
(C)
IC103
IC104
(SL/SR)
(DAC)
(CODEC)
AK4626AVQ
IC105
(FL/FR)
FUNCTION SELECTOR
FRONT AUDIO IN
VIDEO(Front)
DVD/LD
CD-R/TAPE
TV/SAT
L/R
L/R
L/R
L/R
AUX
CD
VCR/DVR
L/R
L/R
L/R
MODULE
TUNER
L/R
R
MIC
L
L/R
(For Setup)
BLOCK DIAGRAM FOR VSX-818V
To
EVOL/SELEC
IC108
BD3474KS2
LIP SYNC
ML87V5002
Cr
(DRIVER)
NJM2581M
6dB
IC553
OUT
COMPONENT
Y
Cb
TC74HC4052AF
6dB
6dB
COMPONENT3
Cb
Cr
Y
Cr3
Cr2
Cr1
Cr Cb
Cb2
Cb1
Cb3
Y
COMPONENT2
Cr
Cb
TC74HC4052AF
Y2
IC552
(COMPO SEL)
Cb
Cr
Y
COMPONENT1
Y3
Y1
Y
IC551
(COMPO SEL)
CN5CN1903
B
DSP & USB ASSY
W
HDMI ASSY
A
MAIN ASSY
E
COMPONENT VIDEO ASSY
F
5.1CH INPUT ASSY
M
DIGITAL INPUT ASSY

4.4 BLOCK DIAGRAM (VSX-818V)

A
B
C
D
2 3 4
E
F
VSX-918V-K
22
1
2 3 4
GND
GND
GND
GND
CN111 CN302
SW2
SW1
FUNCTION
SELECTOR
(SL/SR)
A. MUTE
(C)
A. MUTE
A. MUTE
Q303
SW PREOUT
RY50 1
SP B L/R
Q631
30dB
RY75 3
C
SL/SR
Ton e
9.5dB
9.5dB
(FL/FR)
IC108
BD3474KS2
CN110 CN704
CN702
: AUDIO SIGNAL FLOW
: VIDEO SIGNAL FLOW
Q601
30dB
IC601 (1/2) IC603 (2/3)
RY75 1
RY75 2
FL/FR
A. MUTE
Q1551
1551
VIDEO (Front)
CN901 CN301
9.5dB
9.5dB
GND
A. MUTE
Q651
30dB
IC601 (2/2) IC603 (3/3)
IC603 (1/3)
POWER PACK ASSY
DVR REC
MONITOR
TV/SAT
DVD/LD
CN310
DVR
(COMPOSITE SEL)
NJM2595M
IC301
OSD
IC302
NJM2243M
(VIDEO/OSD SEL)
IC851
(PDC132A)
P
VIDEO ASSY
O
HEAD PHONE ASSY
C
POWER PACK ASSY
SSY
5
6 7 8
A
B
C
D
E
VSX-918V-K
5
6 7 8
F
23
1
Block Diagram (DSP portion)
DIR
AK4114VQ
IC101
CODEC
AK4626AVQ
SDTO LRCK,BCLK OUT
DSP
DSPC56371AF180
LRCK,BCLK IN SDTI MCLK
SDTI
SW
TC7WH125
SERIAL ROM
5 3
LEVEL
SHIFTER
3 5
LEVEL
SHIFTER
XMDT
BU9450KV
I2S
Lip Sync
ML87V5002
TC74VHC08
(1/4, 2/4)
TC74VHC08 (3/4)
TC74VHC08 (4/4) (ODD)
except KUXJ
AWX8977 AWX8979 AWX9164
Telechips
USB
Block
SPDIF
(RX6)
Analog 6ch OUT
COAX in(1)
SPDIF in(2)
SPDIF
VSX-918V only AWX9162,AWX8977
Analog 2ch in
24.576MHz
24.576MHz
Control in
Control out
PQ1LAX95MSPQ PQ1LAX95MSPQ
1.25V 3.3V D5V
A5V
TC7WHU04
XM in
HDMI Block
SW
TC74VHC157
SW
TC74VHC157
/KUXJ only AWX9162,AWX9163
VSX-818V only
AWX8979 AWX9163 AWX9164
AWX8977 AWX9162 AWX9164
only
AWX8979 AWX9163
only
PDC172A8
1M
VSX-818V only
AWX9163 AWX9164 AWX8979
PDC173A8
4M
VSX-918V only
AWX9162 AWX8977
IC301
IC261
IC191
IC201
IC251
IC331
IC341, IC351
IC121
IC161 IC171
JA121
IC202
IC191
IC191
IC271
X261
IC2
IC3
B
V
HDMI&DSP&USB ASSY (VSX-918V:AWX9162)
DSP&USB ASSY (VSX-818V : AWX9163)

4.5 DSP BLOCK DIAGRAM

A
2 3 4
B
C
D
E
F
24
1
VSX-918V-K
2 3 4
5
VSX-918V HDMI&DSP&USB ASSY HDMI Block Diagram
IC632
IC631
EDID
IC651
HDMI RECEIVER
DDC
TMDS
HPD
IC701
HDMI TRANSMITTER
HSYNC, VSYNC, DE
DCK
D[0-23]
MCLK SCK WS
IC861
FLASH ROM
IC801
HDMI ucom
CSCL CSDA
JA601
JA602
JA701
HDMI IN1
HDMI IN2
HDMI OUT
Main ucom I/F
28.322 MHz
LDO
DC /DC
LDO
5V
3.3V
1.8V
IC91
IC61
IC71
7V
5V
DDC
TMDS
HPD
IC611
HDMI CABLE EQ SW
DDC
TMDS
HPD
DDC
TMDS
SEL
SD[0-3] SPDIF
to DSP part
HPD_SINK
LDO
3.3V
IC891
IC101
CXB1444R
HDMI SW
DDC
HPD
TMDS
JA101
JA102
JA301
CN1001
HDMI IN1
HDMI IN2
HDMI OUT
Main ucom I/F
VSX-818V HDMI ASSY(Pass through SW) Block Diagram
IC102
TC7MB 3253FK
DDC SW
CN1002
SELB
HPD_IN
HPD_S
SELA
Power Supply
DDC
HPD
TMDS
HPD
TMDS
DDC
CE
DDC SW
5V
7V
LDO
LDO
5V
3.3V
IC901
IC911
HDMI&DSP&USB ASSY (VSX-918V)
HDMI ASSY (VSX-818V)
V
W

4.6 HDMI BLOCK DIAGRAM

6 7 8
A
B
C
D
E
VSX-918V-K
5
6 7 8
F
25
1
CN401
CN2
BUS Power cnt.
CTL
USB POWER
XFLAG
Protection flag
CN3
IC461
64M
SDRAM
IC401
USB Host
TCC8600
IC481
Apple
Certification IC
X’tal
12 MHz
D+
CP_RDY
S/PDIF
XRST
XRST
USB_DAI
USB_DAO
DSP part
V3.3D
V5USB
V5 Receiver
+5V
V+3DU
D-
CP_DATA
CP_CK
V1.8D
I/O
Internal Core
IC462
16M
FLASH ROM
V+3DU
IC471 LOAD
SW IC
System
Control
CPU
IC402
1.8V REG
V+1R8U
5 -> 3
R455, R456
USB_DAI
5 -> 3
TC74VHC08FTS
USB_DAO
3 -> 5
TC74VHCT541AFTS
V+3DU
V5DU
V3D (DSP)
Q401
IC331
IC351
X’tal
32.768 KHz
Block Diagram (USB portion)
B V
HDMI&DSP&USB ASSY (VSX-918V:AWX9162)
DSP&USB ASSY (VSX-818V : AWX9163)

4.7 USB (iPod) BLOCK DIAGRAM

A
B
2 3 4
C
D
E
F
26
1
2 3 4
VSX-918V-K
5
When a sound is not out in the multi-CH signal playback mode or surround mode with the COAX, OPT, USB or HDMI input. (SurroundBack is not output by setting.)
• Suppose CR to be normal contact and that is not damaged.
• This shows failure analysis of DSP Block.
Step 4: 3 V to 5 V conversion
Step 1: MUTE pin
IC351
Do
convert 3 V into
5 V for input?
Replace IC201.
Replace IC1.
Replace IC2.
To Step 2
To Step 4
To Step 5
Step 0: Preliminary confirmation
Confirm the following items before checking
Do screws
of COAX Jack
securely tighten
?
Tighten screws securely.
No
Ye s
To Step 1
IC201 (Pin 54)
Is the
voltage of output
signal 0 V
?
No
Replace IC351.
No
Ye s
MUTE
Troubleshooting for all destination
[1] DSP TROUBLESHOOTING
Step 3: Regulator IC
Check the IC1 and REGULATOR Assy.
IC1 (Pin 4)
Is the
voltage of around
5 V to 5.3 V
input?
No
Ye s
(to chassis)
IC2 (Pin 5)
Is the
voltage of 1.25 V
output?
No
(to chassis)
IC1 (Pin 5)
Is the
voltage of 3.3 V
output?
No
Ye s
Ye s
Ye s
IC341
Do
convert 3 V into
5 V for input?
Replace IC341.
No
Ye s
(to chassis)
Part shape and Pin arrangement of IC1 and IC2
Step 2: BtoB connector and FFC
CN1, CN2
Are the
connectors securely
inserted?
Turn the power off and insert the connectors securely.
No
Ye s
CN3
Is the
FFC securely
inserted?
Turn the power off and insert the connectors securely.
No
Ye s
To Step 3
BtoB connector
FFC
6 7 8

5. DIAGNOSIS

5.1 DIAGNOSIS FLOWCHART

A
B
C
D
E
F
VSX-918V-K
5
6 7 8
27
1
Step 7-1: DIR
Step 7
A
To Step 6
Check the parts and patterns in the path.
Check the USB Block, and the parts and patterns in the path.
Replace IC101.
Replace IC101.
IC331
Do
convert 5 V into
3 V for input?
Replace IC331.
No
Ye s
Check the DIGITAL INPUT Assy, and parts and patterns in the path.
Check the path to pin 45 of IC201. Replace IC201.
IC101 (Pins 1, 3)
OPTICAL
Check that the S/PDIF signal is output. Check that changes by pulling out and inserting the digital input lines.
When the COAX, OPT or USB is input, go to Step 7-1. When the HDMI is input, go to Step 7-2.
Can observe the digital signal
?
No
(0 V 4 V)
Ye s
IC101 (Pin 42)
COAX
Can observe the digital signal
?
No
Ye s
Ye s
Check that the data and clock signals are output.
Check that it changes in the Playback and Pause modes of the USB (iPod).
(0 V 3.3 V)
(0 V 3.3 V)
(0 V 3.3 V)
Ye s
IC101 (Pin 5)
From USB Block
Can observe the digital signal
?
No
(1.65 V center, amplitude more than 0.2 Vp-p)
Check the other assy. (surrounding of the microcomputer)
IC101 (Pin 27)
DIRM (Master clock)
No
No
Ye s
Is there
a master clock
output?
IC101 (Pin 24)
DIRL (LR clock)
No
Is there
a LR clock
output?
Replace IC101.
(0 V 3.3 V)
Ye s
IC101 (Pin 25)
DIRD (Data)
No
Is there
a data
output?
Is the
voltage of PDN
IC101-pin 31
5 V?
No
Step 6: X'tal
To Step 7
Replace IC261 or X261.
Ye s
IC261 (Pin 2)
No
Is there
a 24.576 MHz
output?
Check the path to pin 30 of IC101. Replace IC101.
Ye s
IC261 (Pin 7)
No
Is there
a 24.576 MHz
output?
Ye s
IC261 (Pin 5)
No
Is there
a 24.576 MHz
output?
Step 5: 5 V to 3 V conversion
A
2 3 4
B
C
D
E
F
28
1
2 3 4
VSX-918V-K
5
To Step 7-2 (AWX9162) To Step 8 (AWX9163)
Replace IC101.
Ye s
IC101 (Pin 26)
DIRB (Bit clock)
No
Is there
a bit clock
output?
(0 V ⇔ 3.3 V)
Ye s
IC161 (Pin 4)
S1DT (data)
Is there
a data
output?
(0 V ⇔ 3.3 V)
Ye s
IC161 (Pin 7)
S1BC (Bit clock)
Is there
a bit clock
output?
(0 V ⇔ 3.3 V)
Ye s
IC161 (Pin 12)
S1LR (LR clock)
Is there
a LR clock
output?
(0 V ⇔ 3.3 V)
Ye s
IC161 (Pin 9)
S1MC (Master clock)
Is there
a master clock
output?
(0 V ⇔ 3.3 V)
Replace IC161.
Check the path between IC161-pin 1 and microcomputer.
No
No
No
No
No
Is the
voltage of
IC161-pin 1
0 V?
Ye s
To Step 8
Ye s
IC171 (Pin 4)
S2DT (data)
Is there
a data
output?
(0 V ⇔ 3.3 V)
Ye s
IC171 (Pin 7)
S2BC (Bit clock)
Is there
a bit clock
output?
(0 V ⇔ 3.3 V)
Ye s
IC171 (Pin 12)
S2LR (LR clock)
Is there
a LR clock
output?
(0 V ⇔ 3.3 V)
Ye s
IC171 (Pin 9)
S2MC (Master clock)
Is there
a master clock
output?
(0 V ⇔ 3.3 V)
Replace IC171.
At COAX, OPT or USB input
Check the path between IC171-pin 1 and microcomputer.
No
No
No
No
No
Is the
voltage of
IC171-pin 1
0 V?
Ye s
Replace IC171.
At HDMI input
Check the path between IC171-pin 1 and microcomputer.
No
Is the
voltage of
IC171-pin 1
5 V?
Ye s
Step 7-2 (AWX9162 only)
Switch
Check that the data and clock signals are output.
A
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
29
1
Step 8: DSP output (digital)
Ye s
Digital output of each CH when inputting the digital signal with audio.
Replace IC201.
IC201 (Pin 6)
Surround L/R data
No
Is the output
0 V fixing?
Ye s
Replace IC201.
IC201 (Pin 7)
Front L/R data
No
Is the output
0 V fixing?
Replace IC201.
Ye s
IC201 (Pin 5)
Center/LFE data
No
Is the output
0 V fixing?
Replace IC201.
Ye s
IC201 (Pin 5)
Center/LFE data
No
Is there
a data output?
Replace IC201.
Ye s
IC201 (Pin 6)
Surround L/R data
No
Is there
a data output?
Replace IC201.
Ye s
IC201 (Pin 7)
Front L/R data
No
Is there
a data output?
(0 V ⇔ 3.3 V)
(0 V ⇔ 3.3 V)
(0 V ⇔ 3.3 V)
Digital output of each CH when inputting the digital signal (- dB (no audio)).
To Step 9 (AWX9162) To Step 10 (AWX9163)
Step 9: LIPSYNC output (Digital) (AWX9162 only)
To Step 10
Is there
a data output?
Check that the data and clock signals are output.
Replace IC271.
Ye s
IC271 (Pin 31)
LSLK (LR clock)
No
Replace IC271.
Ye s
Ye s
IC271 (Pin 30)
LSBK (Bit clock)
No
Is there
a bit clock
output?
Replace IC271.
IC271 (Pin 29)
Front L/R data
No
Is there
a LR clock
output?
(0 V ⇔ 3.3 V)
(0 V ⇔ 3.3 V)
(0 V ⇔ 3.3 V)
Is there
a data output?
Ye s
Replace IC271.
IC271 (Pin 28)
Surround L/R data
No
(0 V ⇔ 3.3 V)
Is there
a data output?
Ye s
Replace IC271.
IC271 (Pin 27)
Center/LFE data
No
(0 V ⇔ 3.3 V)
A
2 3 4
B
C
D
E
F
30
1
VSX-918V-K
2 3 4
5
Ye s
Replace IC301.
IC301 (Pin 23)
Center out
No
Is the output
2.5 V fixing?
Replace IC301.
Ye s
Ye s
IC301 (Pin 26)
Surround R out
No
Is the output
2.5 V fixing?
Replace IC301.
IC301 (Pin 27)
Front L out
No
Is the output
2.5 V fixing?
Ye s
Replace IC301.
IC301 (Pin 28)
End
Front R out
No
Is the output
2.5 V fixing?
Ye s
Ye s
Replace IC301.
IC301 (Pin 24)
LFE out
No
Is the output
2.5 V fixing?
Replace IC301.
IC301 (Pin 25)
Surround L out
No
Is the output
2.5 V fixing?
Analog output of each CH when inputting the digital signal (- dB (no audio)).
Replace IC301.
Ye s
IC301 (Pin 26)
Surround R out
No
Is there
a data output?
Replace IC301.
Ye s
IC301 (Pin 27)
Front L out
No
Is there
a data output?
Replace IC301.
Ye s
IC301 (Pin 28)
Front R out
No
Is there
a data output?
Step 10: Codec output (analog)
Analog output of each CH when inputting the digital signal with audio.
Replace IC301.
Ye s
IC301 (Pin 23)
Center out
No
Is there
a data output?
Replace IC301.
Ye s
IC301 (Pin 24)
LFE out
No
Is there
a data output?
Replace IC301.
Ye s
IC301 (Pin 25)
Surround L out
No
Is there
a data output?
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
31
1
When a sound is not output in the XM antenna input. (SurroundBack is not output by setting.)
• Suppose CR to be normal contact and that is not damaged.
• This shows failure analysis of DSP Block.
Step 2: BtoB connector and FFC
Step 1: MUTE pin
CN1, CN2
Are the
connectors securely
inserted?
Turn the power off and insert the connectors securely.
No
Replace IC201.
Replace IC122.
Replace IC1.
Replace IC2.
Ye s
CN3, CN4
Is the
FFC securely
inserted?
Turn the power off and insert the connectors securely.
No
Ye s
To Step 3
To Step 2
To Step 4
Step 0: Preliminary confirmation
Confirm the following items before checking
Do screws
of COAX Jack
securely tighten
?
Tighten screws securely.
No
Ye s
To Step 1
IC201 (Pin 54)
Is the
voltage of output
signal 0 V
?
No
Ye s
MUTE
BtoB connector
FFC
Troubleshooting in the XM mode
Step 3: Regulator IC
Check the IC1 and REGULATOR Assy.
IC1 (Pin 4)
Is the
voltage of around
5 V to 5.3 V
input?
No
Ye s
(to chassis)
Check the power supply path.
IC122 (Pin 1)
Is the
voltage of around
5 V to 5.3 V
output?
No
Is the
voltage of IC122-
pin 5 around 5 V to
5.3 V input?
(to chassis)
IC2 (Pin 5)
Is the
voltage of 1.25 V
output?
No
No
(to chassis)
IC1 (Pin 5)
Is the
voltage of 3.3 V
output?
No
Ye s
Ye s
Ye s
Ye s
Ye s
Check the path to the microcomputer.
Is the
voltage of IC122-
pin 4 more than
2.4 V?
No
(to chassis)
Part shape and Pin arrangement of IC1 and IC2
A
2 3 4
B
C
D
E
F
32
1
2 3 4
VSX-918V-K
5
To Step 5
To Step 6
IC331
Do
convert 5 V into
3 V for input?
Replace IC331.
No
Ye s
Step 5: 5 V to 3 V conversion
Step 4: 3 V to 5 V conversion
IC351
Do
convert 3 V into
5 V for input?
Replace IC351.
No
Ye s
IC341
Do
convert 3 V into
5 V for input?
Replace IC341.
No
Ye s
Check the path to pin 45 of IC201. Replace IC201.
Step 6: X'tal
To Step 7
Replace IC261 or X261.
Ye s
IC261 (Pin 2)
No
Is there
a 24.576 MHz
output?
Check the path to pin 30 of IC101. Replace IC101.
Ye s
IC261 (Pin 7)
No
Is there
a 24.576 MHz
output?
Ye s
IC261 (Pin 5)
No
Is there
a 24.576 MHz
output?
Step 7-1: XM/DT
Replace IC121.
Ye s
IC121 (Pin 37)
XMFD (data)
No
Is there
a data output?
Replace IC121.
Ye s
IC121 (Pin 39)
XMBK (Bit clock)
No
Is there
a bit clock
output?
Is there
a LR clock
output?
Is there
a LR clock
output?
Replace IC121.
Ye s
IC121 (Pin 41)
XMLR (LR clock)
No
Replace IC121.
Ye s
IC121 (Pin 43)
XMMK (Master clock)
No
Is there
a master clock
output?
Is there
a master clock
output?
Ye s
IC161 (Pin 4)
S1DT (data)
No
Is there
a data output?
Ye s
IC161 (Pin 7)
S1BC (Bit clock)
No
Is there
a bit clock
output?
Ye s
IC161 (Pin 12)
S1LR (LR clock)
No
Ye s
IC161 (Pin 9)
S1MC (Master clock)
No
Replace IC161.
Ye s
Check the path between IC161-pin 1 and the microcomputer.
Is the
voltage of IC161-
pin 1 5 V?
No
(0 V 3.3 V)
(0 V 3.3 V)
(0 V 3.3 V)
(0 V 3.3 V)
(0 V 3.3 V)
(0 V 3.3 V)
(0 V 3.3 V)
(0 V 3.3 V)
Switch
To Step 7-2 (AWX9162) To Step 8 (AWX9163)
6 7 8
A
B
C
D
5
6 7 8
VSX-918V-K
E
F
33
1
To Step 8
Ye s
IC171 (Pin 4)
S2DT (data)
Is there
a data
output?
(0 V ⇔ 3.3 V)
Ye s
IC171 (Pin 7)
S2BC (Bit clock)
Is there
a bit clock
output?
(0 V ⇔ 3.3 V)
Ye s
IC171 (Pin 12)
S2LR (LR clock)
Is there
a LR clock
output?
(0 V ⇔ 3.3 V)
Ye s
IC171 (Pin 9)
S2MC (Master clock)
Is there
a master clock
output?
(0 V ⇔ 3.3 V)
Replace IC171.
Check the path between IC171-pin 1 and microcomputer.
No
No
No
No
No
Is the
voltage of
IC171-pin 1
0 V?
Ye s
Step 7-2 (AWX9162 only)
Check that the data and clock signals are output.
Step 8: DSP output (digital)
Digital output of each CH when receiving the broadcast signal with audio.
Note: When confirm the output in the XM surround system, refer to step 8 of "Troubleshooting for all destination".
Replace IC201.
Ye s
IC201 (Pin 7)
Front L/R data
No
Is there
a data output?
Replace IC201.
Ye s
IC201 (Pin 7)
Front L/R data
No
Is the output
0 V fixing?
Digital output of each CH when not receiving the broadcast signal (- dB (no audio)).
To Step 9 (AWX9162) To Step 10 (AWX9163)
A
2 3 4
B
C
D
E
F
34
VSX-918V-K
1
2 3 4
5
End
Note: When confirm the output in the XM surround system, refer to step 10 of "Troubleshooting for all destination".
Analog output of each CH when not receiving the broadcast signal (- dB (no audio)).
Step 10: Codec output (analog)
Analog output of each CH when inputting the broadcast signal with audio.
Replace IC301.
Ye s
IC301 (Pin 27) IC301 (Pin 28)
Front L out
No
Is there
a data output?
Front R out
Replace IC301.
Ye s
IC301 (Pin 27) IC301 (Pin 28)
Front L out
No
Is the output
2.5 V fixing?
Front R out
Step 9: LIPSYNC output (Digital) (AWX9162 only)
To Step 10
Is there
a data output?
Check that the data and clock signals are output.
Replace IC271.
Ye s
IC271 (Pin 31)
LSLK (LR clock)
No
Replace IC271.
Ye s
Ye s
IC271 (Pin 30)
LSBK (Bit clock)
No
Is there
a bit clock
output?
Replace IC271.
IC271 (Pin 29)
Front L/R data
No
Is there
a LR clock
output?
(0 V ⇔ 3.3 V)
(0 V ⇔ 3.3 V)
(0 V ⇔ 3.3 V)
Is there
a data output?
Ye s
Replace IC271.
IC271 (Pin 28)
Surround L/R data
No
(0 V ⇔ 3.3 V)
Is there
a data output?
Ye s
Replace IC271.
IC271 (Pin 27)
Center/LFE data
No
(0 V ⇔ 3.3 V)
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
35
1
Step 4: 3 V to 5 V conversion
Step 1: MUTE pin
IC351
Do
convert 3 V into
5 V for input?
Replace IC201.
Replace IC1.
Replace IC2.
To Step 2
To Step 4
To Step 5
Step 0: Preliminary confirmation
Confirm the following items before checking
Do screws
of COAX Jack
securely tighten
?
Tighten screws securely.
No
Ye s
To Step 1
IC201 (Pin 54)
Is the
voltage of output
signal 0 V
?
No
Replace IC351.
No
Ye s
MUTE
Step 3: Regulator IC
Check the IC1 and REGULATOR Assy.
IC1 (Pin 4)
Is the
voltage of around
5 V to 5.3 V
input?
No
Ye s
(to chassis)
IC2 (Pin 5)
Is the
voltage of 1.25 V
output?
No
(to chassis)
IC1 (Pin 5)
Is the
voltage of 3.3 V
output?
No
Ye s
Ye s
Ye s
IC341
Do
convert 3 V into
5 V for input?
Replace IC341.
No
Ye s
(to chassis)
Part shape and Pin arrangement of IC1 and IC2
Step 2: BtoB connector and FFC
CN1, CN2
Are the
connectors securely
inserted?
Turn the power off and insert the connectors securely.
No
Ye s
CN3
Is the
FFC securely
inserted?
Turn the power off and insert the connectors securely.
No
Ye s
To Step 3
BtoB connector
FFC
When the MCACC mode is turned on (SurroundBack is not output by setting.)
• Suppose CR to be normal contact and that is not damaged.
• This shows failure analysis of DSP Block.
Troubleshooting in the MCACC mode
A
2 3 4
B
C
D
E
F
36
1
2 3 4
VSX-918V-K
5
Replace IC251.
Replace IC201.
Step 8: DSP output (digital)
Step 7: ROM
Digital output when indicated each CH.
Replace IC201.
Ye s
IC201 (Pin 5)
Center/LFE data
No
Is there
a data output?
Replace IC201.
Ye s
IC201 (Pin 6)
Surround L/R data
No
Is there
a data output?
Replace IC201.
Ye s
IC201 (Pin 7)
Front L/R data
No
Is there
a data output?
To Step 8
To Step 9
Is the
voltage output about
3.3 V during the operation mentioned
above?
IC251 (Pin 6)
SCK (Clock in)
IC251 (Pin 5)
SI (DATA in)
IC251 (Pin 2)
SO (DATA out)
IC251 (Pin 1)
CS#
Ye s
Ye s
IC201 (Pin 70)
BUSY
No
Replace IC201.
Is the
voltage output about
0 V after the operation is
completed mentioned
above?
Ye s
No
No
Is there
movement (0 V
3.3 V) when turned the MCACC on, and does
movement stop within
3 sec.?
(0 V 3.3 V)
(0 V 3.3 V)
(0 V 3.3 V)
To Step 6
IC331
Do
convert 5 V into
3 V for input?
Replace IC331.
No
Ye s
Check the path to pin 45 of IC201. Replace IC201.
Step 6: X'tal
To Step 7
Replace IC261 or X261.
Ye s
IC261 (Pin 2)
No
Is there
a 24.576 MHz
output?
Check the path to pin 30 of IC101. Replace IC101.
Ye s
IC261 (Pin 7)
No
Is there
a 24.576 MHz
output?
Ye s
IC261 (Pin 5)
No
Is there
a 24.576 MHz
output?
Step 5: 5 V to 3 V conversion
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
37
1
Step 9: CODEC output (analog)
Analog output when indicated each CH.
Replace IC301.
Ye s
IC301 (Pin 23)
Center out
No
Is there
a data output?
Replace IC301.
Ye s
IC301 (Pin 24)
LFE out
No
Is there
a data output?
Replace IC301.
Ye s
IC301 (Pin 25)
Surround L out
No
Is there
a data output?
Replace IC301.
Ye s
IC301 (Pin 26)
Surround R out
No
Is there
a data output?
Replace IC301.
Ye s
IC301 (Pin 27)
Front L out
No
Is there
a data output?
Replace IC301.
Ye s
IC301 (Pin 28)
Front R out
No
Is there
a data output?
End
A
2 3 4
B
C
D
E
F
38
VSX-918V-K
1
2 3 4
5
key sequence change
An object folder name is displayed.
Error I1 Communication Error When the communication is not possible normally.
[Procedure] Disconnect a connector once, then connect a connector surely again after the main menu of the iPod was displayed. Nevertheless, reset the iPod when the iPod does not operate normally.
Error I2 Protocol Ver.Error (in the Type 2 operation only) When a version of the iPod software is old.
[Procedure] Update the iPod software to the newest version.
Error I3 Generation Error (in the Type 1 operation only) When the non-support model for the iPod Mode Type 1 was connected.
When the non-support function will be executed. When a version of the iPod software is old.
[Procedure] Change the iPod Mode to Type2. Update the iPod software to the newest version.
Error I4 Loading Error When there is no response from the iPod.
[Procedure] The power is shut off once, then the unit back on. Reset the iPod. Update the iPod software to the newest version.
No Music Track No Music Track Cautuion When a music track does not exist in the
connected iPod.
[Procedure] Transfer a music track to the iPod. When play a video track, turn on the iPod CTRL, and playback a track by operating the main unit of the iPod.
No Track No Music Track Cautuion When a track does not exist in the selected
category
[Procedure] Select another category.
iPod Error Message
When the abnormality occurred, the error messages are indicated.
12345678 9012345678 901234
1
iPod
2
E R ROR I 1
3 4
Er rorI1
5 6 7
8
9 0 1 2
12345678 9012345678 901234
1
iPod
2
ERROR I 2
3 4
Er ror
I2
5 6 7
8
9 0 1 2
12345678 9012345678 901234
1
iPod
2
ERROR I 3
3 4
Er ror
I3
5 6 7
8
9 0 1 2
12345678 9012345678 901234
1
iPod
2
ERROR I 4
3 4
Er ror
I4
5 6 7
8
9 0 1 2
12345678 9012345678 901234
1
iPod
2
N OMUSIC
3 4
No Mu s i c T r a c k
5 6 7
8
9 0 1 2
12345678 9012345678 901234
1
iPod
2
N OTRACK
3 4
No T r ac k
5 6 7
8
9 0 1 2
(8-digit)
(8-digit)
(8-digit)
(8-digit)
(8-digit)
(8-digit)
OSD display
FL display
[2] USB (iPod) TROUBLESHOOTING
6 7 8
A
B
C
D
5
6 7 8
VSX-918V-K
E
F
39
1
iPod Troubleshooting
* VSX-918V (AWX9162) ** VSX-818V (AWX9163)
Step 1: Connectors
Step 2: Power supply
CN401, CN1, CN2, CN3*, CN7**
To STEP 2
Are
the connectors
securely inserted
?
Insert the connectors securely.
Check the patterns in the path.
No
Ye s
To STEP 1
Ye sYe s
Is there
any loose
connection
of CN1?
Check the POWER PACK Assy.
No
CN1 (pins 8, 9)
IC1 (pins 3, 4)
Is
the voltage
5 V ?
No
Ye s
Is the base of
Q402 High? (about 5 V)
[USBPWR]
Check CN3*, CN7** pin 17. [USB POWER]
No
No
Ye s
Is IC1
abnormally
hot?
No
No
5 V input (For internal circuit)
3.3 V Regulator IC input
3.3 V Reg. output
3 V to 5 V Converter
1
2
Ye s
Replace Q401, or check the circuit around Q401 and Q402.
Replace IC1.
The output and GND may be short-circuited. Check the path between them.
Ye s
Ye s
Is
the voltage
5 V ?
No
Check the patterns in the path.
IC402 (pins 1, 3)
1.8 V Regulator IC input
7
Ye s
Is
the voltage
3.3 V ?
No
Check the parts and patterns in the path.
IC462 (pins 37, 47)
FLASH ROM
8
Ye s
Is
the voltage
3.3 V ?
No
Ye s
Check the parts and patterns in the path.
IC481 (pins 1, 40)
Co-Processor
10
Is
the voltage
3.3 V ?
No
Ye s
Check the parts and patterns in the path.
IC461 (pins 1,3,9,14,27,43,49)
SDRAM
9
Is
the voltage
3.3 V ?
No
IC1 (pin 5)
3
Ye s
3.3 V Local switch
Q401 (emitter)
5
Is
the voltage
3.3 V ?
Check the parts and patterns in the path.
IC351 (pin 20)
4
Is
the voltage
5 V ?
No
Check the parts and patterns in the path.
Is
the voltage
3.3 V ?
No
Ye s
3.3 V Local switch operation
Q401 (collector)
6
Is
the voltage
3.3 V ?
A
A
2 3 4
B
C
D
E
F
40
1
VSX-918V-K
2 3 4
Ye s
Ye s
Is IC402
abnormally
hot?
Replace IC402.
The output and GND may be short-circuited. Check the path between them.
No
Is
the voltage
1.8 V ?
No
Ye s
Check the parts and patterns in the path.
IC331 (pin 14)
5 V to 3 V Converter
11
Is
the voltage
3.3 V ?
No
IC402 (pin 5)
1.8 V Regulator output
13
Ye s
Check the parts and patterns in the path.
IC401 (pins 16, 33, 64, 76, 112)
USB Media control IC
12
Is
the voltage
3.3 V ?
No
Ye s
Check the parts and patterns in the path.
IC401 (pins 7, 24, 41, 71, 77, 87, 109, 119)
USB Media control IC
14
Is
the voltage
1.8 V ?
No
A
Check the MAIN Assy.
Replace IC471.
Ye s
Ye s
Ye s
Is pin 4 [USB CTL] of IC471
high?
Is
the voltage
5 V ?
No
Ye s
Is pin 20
(CTL) of CN3*,
CN7** high?
No No
Check the parts and patterns in the path.
CN401 (pin 1)
USB Bus power
16
Is
the voltage
5 V ?
Check the parts and patterns in the path.
Power supply is OK.
To STEP 3
No
IC471 (pin 1)
USB Power SW output
15
* VSX-918V (AWX9162) ** VSX-818V (AWX9163)
5
6 7 8
A
B
C
D
5
6 7 8
VSX-918V-K
E
F
41
1
Step 3: Operation of USB Media control IC
Does the
crystal oscillator
at 12 MHz
?
Note: Please confirm it with the iPod*1 connected for the content.
*1 : This system is compatible with the audio of the following portable device in Jan. 2008. 5G iPod, iPod nano, iPod nano 2G, iPod nano 3G, iPod classic, iPod touch
Check CN3*, CN7** pin 16. [USB XRST]
USBDAO and USBDAI should be high during operation. Check the pattern in the path. Check the MAIN Assy.
Check the parts and patterns in the path. Replace X402, etc.
No
Ye s
Ye s
Is XRST
high?
No
Ye s
No
IC401 (pins 74,75)
USBDAI, USBDAO (Refer to Fig. 1)
IC401 (pin 44) -> IC461 (pin 38)
XIN/XOUT
* XRST must be high during operation. Check the MAIN Assy.
Fig. 1
Do
USBDAO and USBDAI
Communicate with
System CPU?
IC401 IC351 (3 V -> 5 V)
USBDAO pin 95 pin 9 pin 11
CN3*, CN7**
pin 19
IC401 IC331 (5 V -> 3 V)
USBDAI pin 96 pin 8 pins 9, 10
CN3*, CN7**
pin 18
IC401
R455 / R456
XRST pin 77
CN3*, CN7**
pin 16
Operation of IC401 is OK.
To STEP 4
Operation of IC401 is OK. To STEP 4
DATA and ADDRESS lines between SDRAM (IC462), FLASH ROM (IC461) and IC401 are may not be connected.
D+ and D- should have waveform during normal condition. Check the pattern in the path. Check the MAIN Assy. Replace IC461, IC462. etc.
Are
there the waveforms
like figure?
After
turning the power
on and several seconds
later, does SDCLK change
12 MHz to 80 MHz?
Ye s
Ye s
No
No
CN401 (pins 2,3)
D+/D-
Initial communication [SDCLK]
Fig. D+
X: 1 μS/div, Y: 2 V/div
X: 1 μS/div, Y: 2 V/div
Fig. D-
* VSX-918V (AWX9162) ** VSX-818V (AWX9163)
A
2 3 4
B
C
D
E
F
42
1
2 3 4
VSX-918V-K
5
Step 4: Operation of iPod (Authentication process)
Do
CPCK and CPDT
communicate?
Does
CPREADY work?
Check the oscillation circuit.
Ye s
No No
IC481 (pins 7, 15)
CPCK, CPDT (I2C between IC401 and IC481)
Ye s
Ye s
Does the
X481 oscillate with
32.576 KHz?
Does CPRESET
(pin 38) reset it?
High (3.3V) after the reset
Replace IC481.
When CPDT and CPCK are normal operation = High (3.3V). Connect iPod, and communicate it about 10 seconds later (authentication starts). And communicate it about 60 seconds later (authentication is complete).
CPREADY becomes High (3.3V) just after the iPod connection. It becomes Low for authentication start (about 10 seconds later) It becomes High again for authentication completion (about 60 seconds later).
No
Check the path between IC401 (pin 108).
No
IC481 (pin 11)
CPREADY
Replace IC481 or X481, etc.
No
Ye s
Ye s
Step 5: Audio Out check
Is there
a SPDIF
signal
?
Check the output from IC701 (pin 105) and R421.
Ye s
No
IC401 (pin 5)
RX6 (S/PDIF) output
Is there
a SPDIF
signal
?
Check the parts and pattern between IC101 and CN401.
Ye s
No
IC101 (pin 5)
RX6 (S/PDIF) input for DIR
Note: Please confirm it with connecting the iPod.
Operation of IC481 is OK.
To STEP 5
Refer to the DSP troubleshooting.
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
43
1
1. Causes for noncompletion of HDMI authentication between the source equipment and this unit (the HDMI indicator is unlit or flashes)
HDMI Simple Diagnosis (VSX-918V)
Replace the HDMI cable.
NG
OK
OK
OK
Replace the Receiver.
Replace the Player.
Replace the HDMI cable.
Repare the Receiver.
Repare the Player.
NG
2. Causes for noncompletion of HDMI authentication between the monitor and this unit (no display or sound from the monitor)
Replace the HDMI cable.
NG
OK
OK
OK
Replace the Receiver.
Replace the TV monitor.
Replace the HDMI cable.
Repare the Receiver.
Repare the TV monitor.
NG
[3] HDMI TROUBLESHOOTING
Causes for no display or sound from the monitor
HDMI Simple Diagnosis (VSX-818V)
Replace the HDMI cable.
NG
OK
OK
OK
Connect the source equipment (player) to the Sink equipment (monitor) directly.
Replace the Player.
Replace the HDMI cable.
Repare the Receiver.
Repare the Player.
NG
OK
Replace the Monitor.
Repare the Monitor.
NG
A
B
2 3 4
C
D
E
F
44
1
2 3 4
VSX-918V-K
5
Step 1-1: Screws on the rear panel
Step 1-3: Connect the HDMI equipment
Step 1-4: POWER ON
JA101
Do
screws of COAXIAL
jack securely
tighten?
Tighten screws securely.
No
Ye s
Tighten screws securely.
No
Ye s
Source equipment: Connect a DVD player to HDMI 1 or HDMI 2.
To Step 2
Sink equipment: Connect a TV to HDMI OUT.
Turn on the power of the Receiver and equipments which was connected with HDMI.
Step 1-5: Function switch (HDMI 1 or HDMI 2)
Switch the function that HDMI was assigned. Factory shipments setting: HDMI 1: DVD HDMI 2: TV
Step 1-2: FFC
CN1001, CN1002
COAXIAL jack
HDMI connector
*Should tighten one screw at least for diagnosis.
Diagnosis
Preparation
HDMI Troubleshooting (VSX-818V)
A
JA601, JA602, JA701
Is FFC
cable inserted
securely?
Do screws
securely tighten?
Insert it securely.
No
Ye s
Step 2-1: CE
CN1001 (Pin 1)
Is the voltage
"H" (5 V)?
Step 2-2: Power supply
No
CE
Diagnose the MAIN Assy.
Diagnose the MAIN Assy.
Diagnose the MAIN Assy.
Ye s
CN1002 (Pins 1, 2)
Is the voltage
5 V?
No
V+5
IC911 (Pin 5)
Is the voltage
5 V?
No
V+5HD
* When connected the equipment to IN1;
* When connected the equipment to IN2;
Ye s
Ye s
CN1002 (Pin 5)
Is the voltage
7 V?
No
V+7
Ye s
IC901 (Pin 1)
Is the voltage
3.3 V?
No
V+3R3V
Check the IC901. If IC901 is failure, replace IC901.
Check the IC911. If IC911 is failure, replace IC911.
Ye s
JA101 (Pin 18)
Is the voltage
5 V?
No
V+5R0
Ye s
Check the JA101. If JA101 is failure, replace JA101.
JA102 (Pin 18)
Is the voltage
5 V?
No
V+5R1
Ye s
Check the JA102. If JA102 is failure, replace JA102.
• This shows failure analysis of the HDMI Assy.
6 7 8
A
B
C
D
E
5
VSX-918V-K
6 7 8
F
45
1
A
Step 2-3: Input selection
Diagnose the MAIN Assy.
Ye s
CN1001 (Pin 5)
Is the
voltage "L"
when selecting IN1?
And is the voltage "H"(5V)
when selecting
IN2?
No
SELA
B
Step 2-4: Hot Plug Detect
CN1001 (Pin 7)
Step 2-5: SDA/SCL
HPD_IN
Is the voltage
"H" (5 V)?
Check the JA301. If JA301 is failure, replace JA301.
Ye s
CN1001 (Pin 6)
HPD_SINK
Is the voltage
"H" (5 V)?
Ye s
No
No
IC102 (Pin 7)
SDA (HDMI OUT)
SDA (HDMI IN1)
Does
a signal output in
constant period
(0 to 5 V)
?
Check the JA301 and IC102. If JA301 or IC102 is failure, replace JA301 or IC102.
No
No
No
Ye s
IC102 (Pin 9)
SCL (HDMI OUT)
Does
a clock output in
constant period
(0 to 5 V)
?
Check the JA301 and IC102. If JA301 or IC102 is failure, replace JA301 or IC102.
Ye s
IC101 (Pin 63)
Is
there a same
signal as IC102-pin 7
when selecting
IN1?
Ye s
Check the IC101 and JA101. If IC101 or JA101 is failure, replace IC101 or JA101.
Check the IC101 and JA101. If IC101 or JA101 is failure, replace IC101 or JA101.
JA101 (Pin 19)
No
HPD0
Ye s
JA102 (Pin 19)
HPD1
* When connected the source equipment to IN1;
* When connected the source equipment to IN1;
* When connected the source equipment to IN2;
SCL (HDMI IN1)
No
IC101 (Pin 64)
Is
there a same
signal as IC102-pin 9
when selecting
IN1?
Ye s
Check the IC101 and JA101. If IC101 or JA101 is failure, replace IC101 or JA101.
SDA_SINK
No
No
SCL_SINK
IC101 (Pin 39)
Is
there a same
signal as IC102-pin 7
(0 to 3.3V)
?
Ye s
Check the IC102 and IC101. If IC102 or IC101 is failure, replace IC102 or IC101.
Check the IC102 and IC101. If IC102 or IC101 is failure, replace IC102 or IC101.
IC101 (Pin 38)
Is
there a same
signal as IC102-pin 9
(0 to 3.3V)
?
Ye s
Diagnose the MAIN Assy.
Diagnose the MAIN Assy.
Ye s
CN1001 (Pin 4)
Is the
voltage "H"(5V)
when selecting IN1?
And is the voltage "L"
when selecting
IN2?
Is the
voltage 5 V
when selecting
IN1?
Check the IC101 and JA102. If IC101 or JA102 is failure, replace IC101 or JA102.
No
Ye s
Is the
voltage 5 V
when selecting
IN2?
No
SELB
(0 to 5 V)
(0 to 5 V)
A
2 3 4
B
C
D
E
F
46
VSX-918V-K
1
2 3 4
Step 2-6: TMDS
IC101 (Pins 25,26,28,29,31,32,34,35)
TMDS OUTPUT
B
SDA (HDMI IN2)
No
IC101 (Pin 45)
Is
there a same
signal as IC102-pin 7
when selecting
IN2?
Ye s
Check the IC101 and JA102. If IC101 or JA102 is failure, replace IC101 or JA102.
* When connected the source equipment to IN2;
SCL (HDMI IN2)
No
IC101 (Pin 46)
Is
there a same
signal as IC102-pin 9
when selecting
IN2?
Ye s
Check the IC101 and JA102. If IC101 or JA102 is failure, replace IC101 or JA102.
(0 to 5 V)
(0 to 5 V)
End
No
Are there
signals(approx. 0.5
Vp-p) in all
lines?
Ye s
Check the IC101. If IC101 is failure, replace IC101.
5
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
47
1
MAIN ASSY
IC9001
(U-P) Pin72
DC PROT
Normal : +5 V DC Detect : 0 V
FL
POWER AMP
POWER AMP
XPROTECT
(refer 4)
1. DC Derection Circuit Diagram : Example of VSX-918V/KUXJ/CA
2. Overload Detection Circuit Diagram: Example of VSX-918V/KUXJ/CA FRONT Channel
3. Fan Stop Protection Circuit Diagram
POWER PACK ASSY
POWER PACK ASSY
MAIN ASSY
IC603(2/3)
R788
R696
C696
C697
R726
D+5V
IC9001
(U-P) Pin72
DC PROT
DC DT
OL DT
Q696
Q697
IC601(1/2)
R628
IC603(3/3)
R694
IC601(2/2)
R674
IC603(1/3)
R623
IC603(2/3)
7pin
FR
SL
SR
C
R785
R786
D777
R784
R445
Fan Stop DET.
D+5V
+24V
R727
R438
FL
Q505
D778
MAIN ASSY
IC9001
(U-P) Pin73
OL DET
Normal : +5 V OVER LOAD Detect : 0 V
POWER PACK ASSY
XPROTECT
MAIN ASSY
IC9001
(U-P)
Pin 89
XPROTECT
Normal : +5 V FAN abnormal STOP : 0 V
SPEAKER Impedance
Fan Stop
Fan
Fan -
Fan +
Q253
Q252
D+5V
R725
C
C
C
A
A
A
2 3 4

5.2 DETECTION CIRCUIT

A
B
C
D
E
F
48
VSX-918V-K
1
2 3 4
5
D713
1SS133
Q702
2SA2005(E)
Q701
2SC5511(E)
D+5V
Voltage supply to POWER AMP IC (V neck-)
Voltage supply to POWER AMP IC (V neck+)
R697 10k
R698 33k
R713
1k
R807 10k
D801 S1WB(A)60SD
D807
D806 MTZJ6.2B
Q807(2/2)
Q807(1/2)
Q808(1/2)
D+5.6V
Q808(2/2)
Q698
Voltage supply to +12 V REGULATOR IC
Voltage supply to -12 V REGULATOR IC
C806 1/50
C801 2200 /25
C802 2200 /25
R806 10k
R808
1k
IC9001
(U-P)
XPROTECT
4. XPROTECT Detection Circuit Diagram
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
POWER PACK ASSY
MAIN ASSY
89
C
A
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
49
1
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.
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.
*A.MUTE : Audio mute command
The abnormality continues for 3 seconds.
Continues. Recovery
The power is shut off.
The program restarts.
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
The abnormality continues for 3 seconds.
Continues. Recovery
The power is shut off.
The power is shut off even if the
unit recovers.
When a DC abnormality is detected, A.MUTE* is turned
on, speaker relay is turned off, then
"AMP_ERR" flashes on the display.
When an overload is detected, A.MUTE* is turned on,
speaker relay is turned off, then
"OVERLOAD" flashes on the display.
2 3 4

5.3 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION

A
B
C
D
E
F
50
1
2 3 4
VSX-918V-K
5
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.
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.
3. XPROTECT detection
↓ ↓
↓ ↓
Power key not effective (*1) and POWER LED blinks (only for VSX-918V).
after 60sec
after X sec
Power key become effective.
POWER LED continue to blink.
AC OFF
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.
When 200 msec passed after power on,
the XPROTECT detection starts.
Don't detect it during power off.
POWER ON
POWER ON
Then no more POWER LED blinks.
AC ON
after Y sec
When X+Y reach 60sec.
(*1)
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".
6 7 8
A
B
C
D

6. SERVICE MODE

There is no information to be shown in this chapter.
5
6 7 8
VSX-918V-K
E
F
51
1
Remove the three screws.
HDMI&DSP&USB Assy
HDMI&DSP&USB Assy
POWER PACK Assy
Extension jig cable (GGD1485)
Extension jig cable (GGD1483)
Ground line
Diagnosis of HDMI
1
Remove the bonnet by removing the six screws.
1
Remove the one screw.
2
Disconnect the two connectors.
3
Remove the HDMI&DSP&USB Assy.
4
Connect the two extension jig cables. GGD1483 (HDMI&DSP&USB CN1 <=> POWER PACK CN805) GGD1485 (HDMI&DSP&USB CN2 <=> POWER PACK CN806)
5
Connect the ground line. (HDMI&DSP&USB COAX terminal <=> Rear panel, One of the three HDMI terminals <=> Rear panel)
6
1 1
1
2
3 3
4
5 5
6
Note 1: Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures described here are common. Note 2: For performing the diagnosis shown below, the following jigs for service are required:
• Extension jig cables : GGD1483, GGD1485
Rear view
Caution:
Heatsink section in work becomes hot, and be careful with it.
For VSX-918V
Diagnosis
2 3 4

7. DISASSEMBLY

A
B
C
D
E
F
52
1
VSX-918V-K
2 3 4
5
Remove the three screws.
HDMI Assy
DSP&USB Assy
DSP&USB Assy
HDMI Assy
POWER PACK Assy
Extension jig cable (GGD1485)
Extension jig cable (GGD1483)
Ground line
1
Remove the one screw.
2
Release the PCB holder.
3
Remove the HDMI Assy.
4
Release the PCB holder.
5
Disconnect the two connectors.
6
Remove the DSP&USB Assy.
7
Connect the two extension jig cables. GGD1483 (DSP&USB CN1 <=> POWER PACK CN805) GGD1485 (DSP&USB CN2 <=> POWER PACK CN806)
8
Connect the ground line. (DSP&USB COAX terminal <=> Rear panel) (HDMI One of the three HDMI terminals <=> Rear panel)
9
1 1
1
2
6 6
4
7
5
8 8
9
Rear view
3
For VSX-818V
Diagnosis
6 7 8
A
B
C
D
E
VSX-918V-K
5
6 7 8
F
53
1
Remove the two screws.
PRIMARY Assy
Diagnosis of the Unit
1
Remove the bonnet by removing the six screws.
1
Remove the one screw.
2
Remove the two screws.
3
Remove the one screw.
4
Remove the push rivet.
5
Remove the BIND Assy by removing the one screw.
6
Remove the one screw.
7
Release the binders, as required.
8
4
7
5
11
6
3
3
Rear view
Caution:
Heatsink section in work becomes hot, and be careful with it.
BIND AssyHeatsink
MAIN Assy
Heatsink
2
A
B
C
2 3 4
D
E
F
54
VSX-918V-K
1
2 3 4
5
Arrange the unit as shown in the photo below.
Rear panel
POWER PACK Assy
Heatsink
9
Diagnosis
C
MAIN Assy
A
HDMI&DSP&USB Assy (VSX-918V)
V
HDMI Assy
W
DSP&USB Assy
B
VSX-818V
9
Be careful with it so that a part of PRIMARY Assy does not touch chassis.
One of the three terminals
Be careful with it when lifts an AMP. section not to damage the TRANS Assys.
Caution:
During diagnosis, be sure NOT to remove the four screws marked A in the above photo. There is the case that a product does not work normally when removes these screws.
Do not lift the unit in this state.
A
AA
A
6 7 8
A
B
C
D
E
5
VSX-918V-K
6 7 8
F
55
1
Remove the five screws.
Disassembly
1
Remove the bonnet by removing the six screws.
1
Remove the two screws.
2
Unhook the two hooks.
3
Remove the front panel section.
4
Caution:
Heatsink section in work becomes hot, and be careful with it.
Front Panel Section
2
4
2
3
11 1 1 1
3
Front panel section
A
B
2 3 4
C
D
E
F
56
VSX-918V-K
1
2 3 4
5
USB Firmware Update
• USB Flash Memory which is saved the firmware file ("player.rom" file).
Note:
In rare cases, it is not able to update the firmware depending on the type of USB flash memory. In such a case, try to use other model of USB flash memory.
[Necessary Tools]
When the Master Volume is "--- dB" , the firmware rewriting mode can enter with the following key operation.
During POWER OFF
1. Press and hold the "POWER" and "PHASE CONTROL" keys for about 5sec.
2. "USB" or "IPOD" is appeared on the FL display.
3. "WAITING" is appeared on the FL display.
4. After 20 seconds, current version "CORE1.50" is appeared on the FL display. Note: Do not insert the USB flash memory till this indication is displayed.
5. Connect the USB flash memory which is saved the firmware file ("player.rom" file).
6. "UPDT 024" is displayed on the FL display.
7. Wait until "COMPLETE" is appeared on the FL display.
8. USB/iPod can be used by turning OFF and ON the POWER (Release the download mode.)
After the power is turned off once
1. Turn off the unit then press and hold "POWER" and "PHASE CONTROL" keys for about 5sec.
2. "USB" or "IPOD" is appeared on the FL display.
3. "WAITING" is appeared on the FL display.
4. After 20 seconds, version "CORE2.00" is appeared on the FL display.
5. USB/iPod can be used by turning OFF and ON the POWER (Release the download mode.)
Note:
• Do NOT reconnect the USB flash memory which is saved the "player.rom" file.
• Do NOT change the function setting or turn off the power during step 5 through 7. If you do, the updating is failed and it is required to replace the USB flash ROM on the USB module.
[Procedures]
[Purpose]
Refer to this section when updating the USB firmware is required by the service information, etc. It is able to update the USB firmware by using USB flash memory.
6 7 8

8. EACH SETTING AND ADJUSTMENT

8.1 HOW TO UPDATE FIRMWARE

A
B
C
D
E
VSX-918V-K
5
6 7 8
F
57
1
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.)
NOTES:
2 3 4

9. EXPLODED VIEWS AND PARTS LIST

A

9.1 PACKING

B
C
D
E
F
58
1
2 3 4
VSX-918V-K
5
(1) PACKING SECTION PARTS LIST
Mark No. Description Part No.
1 FM Wire Antenna ADH7030
2 AM Loop Antenna ATB7013
3 Microphone APM7008
(for Auto MCACC setup)
4 Operating Instructions XRB3089
(English)
5 Operating Instructions XRC3358
(Spanish)
6 Remote Control See Contrast table (2)
7 Battery Cover AZN7933
NSP 8 Dry Cell Battery (AA, R6) XEX3002
NSP 9 Polyethylene Bag AHG7117
(0.06 x 230 x 340)
10 Packing Sheet AHG7069
11 Left Pad V5 XHA3174
12 Right Pad V5 XHA3175
13 Packing Case See Contrast table (2)
14 Sub Pad XHA3179
NSP 15 DS Tape XEH3001
6 7 8
A
B
C
(2) CONTRAST TABLE
VSX-918V-K/KUXJ/CA, VSX-918V-S/KUXJ/CA, VSX-818V-K/KUXJ/CA and VSX-818V-S/KUXJ/CA are constructed the same except for the following:
Mark No. Symbol and Description
6 Remote Control XXD3147 XXD3161 XXD3152 XXD3163
13 Packing Case XHD3762 XHD3763 XHD3771 XHD3772
VSX-918V-K
/KUXJ/CA
VSX-918V-S
/KUXJ/CA
VSX-818V-K
/KUXJ/CA
VSX-818V-S
/KUXJ/CA
D
E
F
VSX-918V-K
5
6 7 8
59
1
CONTACT SIDE
NON-CONTACT
SIDE
B
C
E
F
G
I
A
N
L
M
H
Q
L
M
N
K
R
P
A
A
A
Q
O
C
D
D
K
J
G
F
I
H
B
O
R
W
P
C
A
V
B
W
D
N
S
G
Cleaning paper : GED-008
E
E
J
J
D
S
T
T
T
S
U
VSX-918V Only
VSX-818V Only
V
V
U
W
Refer to "9.4 FRONT PANEL SECTION".
Refer to "9.3 REAR PANEL SECTION".

9.2 EXTERIOR SECTION

A
2 3 4
B
C
D
E
F
60
1
VSX-918V-K
2 3 4
5
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No.
1 HDMI&DSP&USB Assy See Contrast table (2)
2 HDMI Assy See Contrast table (2)
3 DSP&USB Assy See Contrast table (2)
4 REGULATOR Assy XWZ4316
5 TRANS 1 Assy XWZ4320
6 POWER PACK Assy XWZ4325
7 TRANS 2 Assy XWZ4335
8 TRANS 3 Assy XWZ4337
9 BIND Assy XWZ4344
10 MAIN Assy See Contrast table (2)
> 11 Power Transformer (T1501) XTS3111
12 11P Flexible Cable (J1911) XDD3189
13 17P Flexible Cable (J1905) XDD3200
14 7P Flexible Cable (J1919) XDD3235
15 5P Flexible Cable (J1912) XDD3248
16 35P Flexible Cable (J1917) See Contrast table (2)
17 14P Flexible Cable (J1918) XDD3252
18 19P Flexible Cable (J1908) See Contrast table (2)
19 9P Flexible Cable (J1903) XDD3258
20 7P Flexible Cable See Contrast table (2)
21 5P Flexible Cable See Contrast table (2)
6 7 8
Mark
No. Description Part No.
> 22 DC Fan Motor XXM3012
NSP 23 Chassis 918 XNA3060
24 H/S Angle V3 XNG3145
NSP 25 H/Sink V5 XNH3048
NSP 26 Spacer AEB7092
27 Push Rivet AEC7205
28 Insulator PNW2766
29 Cord Clamper RNH1005
NSP 30 Binder (BK-1) ZCA-BK1
31 Bonnet See Contrast table (2)
32 ICP Label XAX3121
NSP 33 PCB Holder See Contrast tab
3
4 • • • • •
35 Screw BBZ30P060FCC
36 Screw BBZ30P080FNI
37 Screw BBZ30P080FTB
38 Screw BBZ30P140FTC
39 Screw BBZ40P080FNI
40 Screw PMZ30P060FCC
41 Screw See Contrast table (2)
A
B
le (2)
C
(2) CONTRAST TABLE
VSX-918V-K/KUXJ/CA, VSX-918V-S/KUXJ/CA, VSX-818V-K/KUXJ/CA and VSX-818V-S/KUXJ/CA are constructed the same except for the following:
Mark No. Symbol and Description
1 HDMI&DSP&USB Assy AWX9162 AWX9162 Not used Not used
2 HDMI Assy Not used Not used AWX8966 AWX8966
3 DSP&USB Assy Not used Not used AWX9163 AWX9163
10 MAIN Assy XWK3362
16 35P Flexible Cable (J1917) XDD3249 XDD3249 Not used Not used
16 23P Flexible Cable Not used Not used XDD3250 XDD3250
18 19P Flexible Cable (J1908) XDD3253 XDD3253 Not used Not used
18 13P Flexible Cable Not used Not used XDD3259 XDD3259
20 7P Flexible Cable Not used Not used XDD3255 XDD3255
21 5P Flexible Cable Not used Not used XDD3256 XDD3256
31 Bonnet XZN3196 XZN3197 XZN3196 XZN3197
NSP 33 PCB Holder Not used Not used PNW2174 PNW2174
41 Screw BBZ30P080FTB BBZ30P080FNI BBZ30P080FTB BBZ30P080FNI
VSX-918V-K
/KUXJ/CA
VSX-918V-S
/KUXJ/CA
XWK3362
VSX-818V-K
/KUXJ/CA
XWK3358 XWK3358
VSX-818V-S
/KUXJ/CA
D
E
F
VSX-918V-K
5
6 7 8
61
1
CONTACT SIDE
NON-CONTACT
SIDE
A
A
B
E
P
F
M
U
Q
B
MAIN CN132
MAIN CN105
MAIN CN105
MAIN CN103
POWER PACK CN803
TRANS 1
TRANS 2 CN1201
FRONT VIDEO CN901
MAIN CN129

9.3 REAR PANEL SECTION

A
B
2 3 4
C
D
E
F
62
1
2 3 4
VSX-918V-K
5
(1) REAR PANEL SECTION PARTS LIST
Mark No. Description Part No.
1 VIDEO Assy See Contrast table (2)
2 DIGITAL INPUT Assy XWZ4299
3 PRIMARY Assy XWZ4305
4 COMPONENT VIDEO Assy XWZ4339
5 5.1CH INPUT Assy XWZ4341
6 SIRIUS Assy XWZ4343
7 FM/AM TUNER Unit AXX7210
> 8Fuse (FU1: 8A) REK1153 > 9AC Power Cord ADG7024
10 7P Flexible Cable (J1913) XDD3254
6 7 8
A
11 R Panel See Contrast table (2)
12 Push Rivet AEC7205
13 Cord Stopper CM-22C
14 PRI Barrier XEC3087
NSP 15 Binder (BK-1) ZCA-BK1
16 • • • • •
17 • • • • •
18 Screw BBZ30P080FNI
19 Screw BBZ30P080FTB
20 Screw PMZ30P060FCC
(2) CONTRAST TABLE
VSX-918V-K/KUXJ/CA, VSX-918V-S/KUXJ/CA, VSX-818V-K/KUXJ/CA and VSX-818V-S/KUXJ/CA are constructed the same except for the following:
Mark No. Symbol and Description
1 VIDEO Assy XWZ4294 XWZ4294 XWZ4292 XWZ4292
11 R Panel XNC3537 XNC3538 XNC3546 XNC3547
VSX-918V-K
/KUXJ/CA
VSX-918V-S
/KUXJ/CA
VSX-818V-K
/KUXJ/CA
B
C
VSX-818V-S
/KUXJ/CA
D
E
F
VSX-918V-K
5
6 7 8
63
1
CONTACT SIDE
NON-CONTACT
SIDE
A
A
H
I
J
O
K
T
R
MAIN CN101
(1/2)
(2/2)
HDMI&DSP&USB CN401 (VSX-918V) DSP&USB CN401 (VSX-818V)
MAIN CN107
VIDEO CN354
POWER PACK CN702
VSX-918V Only

9.4 FRONT PANEL SECTION

A
2 3 4
B
C
D
E
F
64
1
2 3 4
VSX-918V-K
5
(1) FRONT PANEL SECTION PARTS LIST
Mark No. Description Part No.
1 FRONT DISPLAY Assy See Contrast table (2)
2 ROTARY ENCODER Assy XWZ4286
3 POWER KEY Assy See Contrast table (2)
4 JOG Assy XWZ4289
5 FRONT VIDEO Assy XWZ4300
6 7 8
Mark
No. Description Part No.
16 D Panel See Contrast table (2)
NSP 17 F Panel Assy See Contrast table (2)
18 FUNC BTN See Contrast table (2)
19 SUB BTN See Contrast table (2)
20 TUNER BTN See Contrast table (2)
A
6 HEADPHONE Assy XWZ4321
7 FRONT IN Assy XWK3366
89P Flexible Cable (J1906) XDD3247
9 5P Shield Cable (J1904) XDX3054
10 4P Shield Cable (J1902) XDX3063
11 Earth Plate FR V3 XNG3144
NSP 12 HP GND Plate XNG3178
13 VOL Knob V4 See Contrast table (2)
14 VOL Knob V5 See Contrast table (2)
15 STANDBY BTN Assy See Contrast table (2)
21 C Lens V3 See Contrast table (2)
22 Pioneer Name Plate See Contrast table (2)
23 FRT Panel See Contrast table (2)
24 • • • • •
25 Screw BBZ30P080FTC
26 Screw BBZ30P080FNI
27 Screw BPZ30P080FTC
(2) CONTRAST TABLE
VSX-918V-K/KUXJ/CA, VSX-918V-S/KUXJ/CA, VSX-818V-K/KUXJ/CA and VSX-818V-S/KUXJ/CA are constructed the same except for the following:
Mark No. Symbol and Description
1 FRONT DISPLAY Assy XWZ4285 XWZ4285 XWZ4284 XWZ4284
3 POWER KEY Assy XWZ4288 XWZ4288 XWZ4287 XWZ4287
13 VOL Knob V4 XAB3053 XAB3056 XAB3053 XAB3056
14 VOL Knob V5 XAB3058 XAB3059 XAB3058 XAB3059
15 STANDBY BTN Assy XAD3216 XAD3217 Not used Not used
VSX-918V-K
/KUXJ/CA
VSX-918V-S
/KUXJ/CA
VSX-818V-K
/KUXJ/CA
B
C
VSX-818V-S
/KUXJ/CA
D
NSP
15 STANDBY BTN Not used Not used XAD3202 XAD3208
16 D Panel XAK3593 XAK3593 XAK3594 XAK3594
17 F Panel Assy XXG3342 XXG3343 XXG3351 XXG3352
18 FUNC BTN XAD3257 XAD3258 XAD3257 XAD3258
19 SUB BTN XAD3259 XAD3260 XAD3259 XAD3260
20 TUNER BTN XAD3261 XAD3262 XAD3261 XAD3262
21 C Lens V3 XAK3534 XAK3534 Not used Not used
22 Pioneer Name Plate XAM3006 VAM1129 XAM3006 VAM1129
23 FRT Panel XMB3291 XMB3292 XMB3300 XMB3301
VSX-918V-K
5
6 7 8
E
F
65
1
FR
FLSLSR
SW
SBR
C
SLIN1
FRIN1
CIN1
SWIN1
SBLIN1
SBRIN1
FLIN1
SRIN1
9
7
8
6
4
5
3
1
2
1
42
3
6
597
8
3
1
4
2
567
10
8
11
12
9
15
13
14
563
4
7
2
1
3
2
1
CN132
C9019
R143
CN122
CN105
C166
C165
R158
R161
CN109
C140
C139
R140
R139
CN107
L112
C112
R324
R112
C118
R156
C111
L111
C114
R157
R326
R323
C117
R111
R114
C192
C138
C113
R325
C191
R113
C137
R132
C108
R320
R108
R319
C107
R107
C188
C132
C187
R131
C131
C179
C110
R110
R328
C109
R327
R134
C190
R133
C134
C189
R109
L104
C104
R154
C103
C133
R316
R104
C1041
C126
R315
C1031
L103
R155
C199
C106
R318
R106
R103
C125
R128
C128
C186
C105
R317
R105
C180
R116
C185
R127
C127
R122
C122
R159
R162
R136
C136
R135
C135
R138
R180
R137
R149
R181
R182
R396
C155
C147
R126
R183
R125
IC108
C130
C129
C152
R152
C148
R151
C153
C154
C149
C150
R148
R147
C197C198
R115
R130
C181C182
R121
C121
R129
R124
C102
R314 R313
C101
R102
C184
C124
C183
R123
R101
C123
D332
D312
R312
C332
C334
D331
R311
C331
C333
R142 R141
D311
C151
CHASSIS
9604S-09C
V-7
GNDA
STBY
STBY
MICDET
9604S-09C
V+7
MCACC
GNDA
SIRRX
9604S-07C
GNDA
SIRTX
SIRIUS_RST
1/50
1/50
STBY
STBY
SBRO
SBLO
GDAC
B3B-PH-K-S
10/50
10/50
STBY
STBY
STBY
CH *1
GNDA1
GNDA0
2.2K
CH
STBY
22p
STBY
STBY
CH
*1
STBY
STBY
STBY
2.2K
22p
10/50
CH
330
10/50
CH CH
*1 *1
STBY
330
*1
CH
*1
CH
10/50
CH
*1
330
STBY
*1
CH
STBY
GND
330
10/50
CH CH
*1*1
10/50
0.01
YB
330
CH
*1
STBY
STBY
CH
*1
330
10/50
CH
*1
GNDA
10/50
CH
*1
STBY
STBY
*1
STBY
*1
2.2K
GNDA
10/50
CH
STBY
22p
CH
CH
STBY
CH
22p
GND
STBY
330
0.01
CH
*1
STBY
2.2K GNDA
10/50
YB
10/50
STBY
CH
*1
GNDA
CH
*1
STBY
330
GND
0.01
CH
*1
STBY
10/50
GNDA
STBY
330
STBY
YB
10/50
STBY
STBY
GNDA
10/50
STBY
GNDA
STBY
GNDA
STBY
0
DSPOL
GNDA
STBY
GNDA
STBY
GNDA
100k
0
STBY
GNDA
GNDA
0
STBY
STBY
BD3474KS2
STBY
47/50
0.01
YB
0.022
YB
STBY
0
GNDA
STBY
STBY
STBY
V-12
STBY
0.022
0.047
YB
STBY
0.15
0.047
0.15YB
YB
YB
1K
YB
1K
YB
CH
*1
CH
*1
STBY
CHCH
*1
*1
GNDA
STBY
330
10/50
10/50
CH
*1
CH
*1
330
STBY STBY
CH
*1
CH
*1
330
10/50
STBY
GNDA
UDZS6R8(B)
1SS355
V-7
100/1W
0.01
100/10
GNDA
STBY
UDZS6R8(B)
100/1W
YB
GNDA
0.01
YB
100/10
TR
TL
STBY
GNDA
1SS355
STBY
V+12
V+7
0.01
SIRIUS
RESET
TO SIRIUS ASSY
SIRIUS RX
SIRIUS TX
SIRIUS L
SIRIUS R
TO FRONT IN ASSY
GNDA
GNDA
V+7V
V-7V
FRONTR
GNDA
FRONTL
V-7
GNDA
MICDET
V+7
MCACCSW
MICOUT
TO POWER PACK ASSY
RCMUT/OVF
GNDA(DAG)
GNDA(DAG)
TO 5.1CH INPUT ASSY
GNDA(DAG)
GNDA(DAG)
GNDA(DAG)
SW
AG
AG
C
SL
SR
AG
FLO
VCOMG
FRO
LIN
RIN
(MIC)
CO
SWO
SLO
SRO
XKP3090
TO FRONT VIDEO ASSY
VIDEO R
VIDEO L
GNDA
FRONT R
FRONT L
GNDA
REC
R
(R)
L
GNDGND
MD
R
(CHASSIS)
DVR/VCR
(L)
(R)
XKB3067-
CN142
L
PLAY
(L)
(CHASSIS)
R
TV/SAT
L
(R)
L
DVD/LD
R
(R)
REC
(CHASSIS)
R
R
CD-R/TAPE
L
(R)
PLAY
L
R
CN141
*4
(R)
63
62
61
66
65
64
SW
SR
SL
C
69
68
SBLIN
SBRIN
67
60
59
58
57
56
55
MICOUT
SIRIUS L
SIRIUS R
TL
TR
AUX(L)
54
53
52
51
50
49
48
AUX(R)
VIDEO L
DVD/LD(L)
CDR(L)
CDR(R)
VIDEO R
CDRREC(L)
CDRREC(R)
727170
VCRREC(L)
VCRREC(R)
75
74
73
7877768079
2
1
4
3
6
5
8
7
AVEE
10
9
DATA
CLOCK
13 12
11
AVCC
DGND
(R)
(L)
47
46
45
43 44
42
VCR(L)
VCR(R)
TV(L)
TV(R)
DVD/LD(R)
CD(R)
CD(L)
41
3940363738
333435
FRONT(R)
FRONT(L)
RIN
(R)
15
14
17
16
19
18
293031
32
262728
232425
LIN
20
21
22
(CHASSIS)
CD
L
AUX
L
R
(R)
STBY
(R)
FRIN1
SLIN1
SRIN1
FLIN1
SBRIN1
CIN1
SWIN1
SBLIN1
A 1/3
CN815
C 2/2
CN956
T
U
CN307
CN7301
F
CN901
R
A 3/3
A 3/3
A 3/3
A 3/3
A 3/3
(FL)
(SL)
(SBL)
(SW)
(C)
(C)
(SBL)
(L)
(L)
(L)
(L)
(FL)
(SL)
(C)
(SW)
(SBL)
(FL)
(SL)
(L)
(L)
(L)
(L)
(L)
(L)
(L)
(L)
(L)
(L)
(L)
(L)
(L)
XKB3064
2 3 4

10. SCHEMATIC DIAGRAM

10.1 MAIN ASSY (1/3)

A
B
C
D
E
F
66
1
2 3 4
VSX-918V-K
5
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
SWIN1
SBL
FR
SBRIN1
SBLIN1
FRIN1
FLIN1
CIN1
SR
MP
SLIN1
SRIN1
8
2
3
4
1
2
8
3
4
1
8
6
5
4
7
8
2
1
3
4
6
8
5
4
7
6
8
5
7
4
8
2
1
3
4
6
8
7
5
4
R270
R262
C264
C262 R264 R266
C266
R272 R274
R268
R276
C278
C270
R278
IC104
C268
R289
C297
R295
C281
R281R282
C282
C283
C285
R279
R283R285R287
IC106
R293
R291
C289
R260
R297
C284
C286
C287
R290
R292
R294
R296
C292
C298
R284R286R288
IC106
C290
R259
C288
R298
C291
R202
C202
C141
R201
C204
C206
R210
R212 R214
C210
C218
R216
R204 R206 R208
IC105
C208
R240
C217
C203
C205
R209
R211 R213
C209
R215
R146
C201
C145
C146
R145
R261
C261
R242
R205 R207R203
IC105
R239
C207
R269
C263
C265
R263 R265 R267
R271
R273
C269
R275
C277
C272
R277
C271
IC104
C244
C246
C267
R236
R250
R252
R254
R256
C258
D107
D105
D103
C242
R241
C241
R244 R246 R248
IC103
C250
R235
C248
R258
C243
C245
R249
R251 R253
C249
R255
C257
C252
R257
C251
R243
R245 R247
IC103
C247
R232
GDAC
1.2K
47K
330p
TS
YB
2.2/50
3.9K 4.7K
220P
2.7K
270
YB
12K
STBY
STBY
STBY
GDAC
NJM4565MD
100p
STBY
STBY
STBY
YB
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY STBY STBY
GDAC
STBY
STBY
STBY
STBY
STBY
V-12
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
V-12
V+12
(SWOUT)
TS
2.2/50
(SBL)
(COUT)
(FLOUT)
(SLOUT)
(SROUT)
(FROUT)
47K
0.1
GNDD
TS
2.2/50
GDAC
47K
STBY
330p
STBY 3.9KCH3.9K
3.9K
STBY
3.3K
STBY
STBY
YB
0.01
NJM4565MD
GDAC
STBY
330p
YB
0.01
CH
V+12
STBY
330p
CH
STBY 3.9K 3.9K
3.9K
3.3K
STBY
STBY
STBY
CH
100p
CH
100p
1K
1K
2.2/50 TS
VLDT
VLCK
GDAC
NJM4565MD
330p
STBY
330p
3.3K
STBY
1.8K
CH
V-12
47K
STBY
CH
STBY 3.3K 3.3K
NJM4565MD
STBY
STBY
STBY
0.01 YB
STBY
STBY
0.01 YB
GDAC
47K
STBY
330p
330p
3.3K
STBY
1.8K
CH
V+12
STBY
STBY
DAN217U
DAN217U
GDAC
GNDA
GNDU
GNDA
DAN217U
GDAC
GNDU
TS
2.2/50
TS
2.2/50
STBY 3.3K
CH
3.3K
NJM4565MD
GDAC
STBY
STBY
330p
STBY
V-12
CH
STBY
330p
47K
CH
STBY
3.3K 3.3K
3.3K
1.8K
STBY
STBY
STBY
STBY
0.01
YB
STBY
0.01
NJM4565MD
STBY
330p CH
V+12
YB
(2/2)
STBY
(1/2)
(1/2)
(2/2)
(FR)
(1/2)
(1/2)
MAIN ASSY(1/3)
(SBL)
VEF1040-A VEF1040-A
Low Pass Filter
(2/2)
(SR)
(1/2)
For Wire Styling
: AUDIO SIGNAL FLOW
( )
101
102
CKSRYB****50-T
(SQ):CKSQ.CCSQ
RESISTOR: RS1/16S***J-T, RS1/10S***J-T
NOTES: NO INDICATED PARTS IS....
CHEMICAL CAPACITOR: CEAT***M**-T,-TS
CERAMIC CAPACITOR: CCSRCH****50-T
(L)
: Audio Signal Route (L ch)
(M)
: Audio Signal Route (Mic ch)
(FL)
: Audio Signal Route (Front L ch)
(SL)
: Audio Signal Route (Surround L ch)
(C)
: Audio Signal Route (Center ch)
(SBL)
: Audio Signal Route (Surround Back L ch)
(SW)
: Audio Signal Route (SubWoofer ch)
MAIN ASSY (VSX-918V:XWK3362) (VSX-818V:XWK3358)
A 1/3
A
1/3
A 2/3
(C)
(C)
(SBL)
(SW)
(SBL)
(SW)
(FL)
(FL)
(C)
(SBL)
(FL)
(SL)
(SL)
(SL)
*1
Not used
CN141
*4
VSX-918V, VSX-818V
XKB3064
6 7 8
A
5
VSX-918V-K
6 7 8
B
C
D
E
F
67
1
+
-
-
+
+
-
-
+
+
-
-
+
+
-
-
+
R505
C385
R513
IC315
C390
C389
R504
C362
R484
R485
R507
R509
C386
R508
R515
C393
C387
R506
C384
R512
R514
IC315
C388
IC312
R550
C368
R517
R518
R516
R488
C370
R494
R498
R502
R496
C364
C366
R500
C367
Q361
R483
C361
R495
C363
R493
R497
R499
C365
R549
IC312
R472
C342
R482
IC311
R474 R476
C348
C346
R478
C347
R481
C343
R475 R473
C344
R477
R479
C345
C341
R322
R452
IC311
R471
C328
R480
R308
R307
R306
R305
R304
R303
C322
R462
IC310
R454 R456
R458
C324
C326
C327
R461
C321
R455
C323
R453
R457
C325
R321
R467
IC310
R460 R459
STBY
(SBR)
(1/2)
SBR
(SBR)
(SBR)
SBL
(2/2)
(2/2)
(SW)
SW
(1/2)
C
(SR)
(1/2)
SR
SL
(2/2)
(1/2)
(SR)
(FR)
(FR)
FR
FL
(2/2)
PRE-AMP
STBY STBY
STBY
STBY
STBY
STBY
STBY
STBY
TS
10/50
100k
2SC5938A(AB)
(SBROUT)
(SBLOUT)
SWPR
STBY
STBY
STBY
*3
STBY
STBY
*3
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
0
TS
STBY
STBY
STBY
STBY
4.7K
STBY
STBY
STBY
4.7/50
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
22/50
0
STBY
0
STBY
10k 10k
GNDA
STBY
STBY
STBY
STBY
STBY
22/50
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
TS
22/50
STBY
STBY
STBY
0
STBY
0
STBY
10k
10k
(SROUT)
(COUT)
(SWOUT)
100
100
100
(FROUT)
(SLOUT)
(FLOUT)
100
100
100
STBY
STBY STBY
22/50
TS
STBY
*1
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
TS
22/50
STBY
0
10k 10k
V+12
A 2/3
A 1/3
A 3/3
(FL)
(FL)
(FL)
(SL)
(SL)
(SL)
(C)
(C)
(C)
(SBL)
(SBL)
(SBL)
(SW)
(SW)
(SW)

10.2 MAIN ASSY (2/3)

A
2 3 4
B
C
D
E
F
68
VSX-918V-K
1
2 3 4
5
SBL
SBR
OLDT
XPROTECT
DCDT
6_OHM
AMUTE
F-DRIVE
CONTROL
+
-
+
-
321
312
4
3
2
1
7
6
5
8
13
11
12
9
10
16
14
15
17
R300
C300
D255
R280
D253
R443
R463
Q255
R464
Q256
R447
Q252
Q254
Q259
R437
Q248
Q249
C256
C253
R436
IC251
R430
IC251
D251
R438
R439
R440
C254
R442
C255
R448
D254
R441
Q253
R446
R445
Q257
R449
R551
R432
R435 R434
R431
R433
R444
C320
C392
Q250
CN251
CN110
CN252
FAN CONTROL
(2/2)
SL
SR
(1/2)
FR
FL
C
(SR)
(FR)
MAIN ASSY(2/3)
XDX3064
J22
TO TRANS3 ASSY
+24V
GNDU
GNDU
FAN+
FAN STOP
FAN-
TO FAN
MOTOR
F-DRIVE DCDT
XPROTECT OLDT
NECK
TO POWER PACK ASSY
AMUTE
(SB)
TO MAIN ASSY
( TO MAIN ASSY 3/3 )
: AUDIO SIGNAL FLOW
JA:CEJA
Ratings: Capacity(μF)/Voltage(V) unless otherwise noted. Rated Voltage: 50V expect for electrolytic capacitors.
1.RESISTORS
Tolerance: (J) 5% unless otherwise noted.
Unit: p-pF or μF unless otherwise noted.
Rated power: 1/16W unless otherwise noted.
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted.
NOTE
2.CAPACITORS
+
-
GNDU
V-12
STBY
STBY
V+5U
*5
*5
*5
470
*5
*5
*5
2SD2704K
4.7K
(QR)
2SD1858X
RT1P241M
(QR)
2SC4081
10K
RT1N241M
0.01
NJM4565MD
68K
68K
39K
100K
NJM4565MD
10K
(QR)
2SC4081
10K
10K
100K
100/25
0.01
NP
STBY
100K
UDZS5R1(B)
8.2k
2.2K
DAN217U
STBY
RT1N241M
22k
2SA1576A
(QR)
8.2K
100K
100K
68K
100K
YB
1000p
STBY
GNDA
GNDU
GNDCH
52147-0310
XKP3059
B3B-EH
6 OHM
GNDU
FL
GNDA
SR
GNDA
FR
C
GNDA
SL
GNDA
A 2/3
CN704
FAN
C 1/2
891
G
A 3/3
A 3/3
(FL)
: Audio Signal Route (Front L ch)
(SL)
: Audio Signal Route (Surround L ch)
(C)
: Audio Signal Route (Center ch)
(SBL)
: Audio Signal Route (Surround Back L ch)
(SW)
: Audio Signal Route (SubWoofer ch)
(FL)
(FL)
(SL)
(SL)
(C)
(C)
(SBL)
MAIN ASSY (VSX-918V:XWK3362) (VSX-818V:XWK3358)
A
2/3
Q255 R463
R464
*5
D253
R280
D255
RT1N241M
­0
UDZS27(B)
0
-
6 7 8
A
B
C
D
E
5
6 7 8
VSX-918V-K
F
69
1
SPB_RY
SPA_RY
HPDET
R/C_RY
AC_RY
AC_WP
SIRTX
25
EXPDT
EXPST
EXPCLK
EXP1
EXP4
EXP3
EXP2
SIRRX
XM_ERR
RDS_DT
XMTX
RDS_CLK
78
77
XMRX
79
52
91
93
80
SRRX SRTX
SRIN
RMC
SROUT
SW2 SW1
INH
OSD_ON
AMUTE SWDET
29
21
SIRRX
SIRTX
V3
V2
V1
OSD_DT
XMTX
XMRX
OSD_CS
OSD_CLK
OSD_RST
EXP5V2V3
EXPCE
V1
EXP4
USBDAO
USBDAI
SRRXTXSRTX
RX
T_CLK T_DO
T_CE T_DI
EXP3
100
EXP2
EXP1
47
EXP4
CN111
L9002
L5002
L9001
C9030
L102
L101
R9096
R9095
R9059
CN106
R9056
R9057
R9070
R9094
R9055
R9052
R9054
R9051
R9049
R6005
Q9004
R9053
R9050
R9058
CN129
R9088
CN130
R9085
R9083
D9069
IC9003
R9089
R9086
D9070
R9087
R9084
C9017
IC9004
R9098
D101
C116 C115
R9097
Q6001
R6006
C9082
R6009
R6001
C6001
C9001
R6007
R6003
IC6001
R6002
R6010
R6004
D6001
D6002
IC9002
R5004
R5003
C5028
C5027
C5026
C5025
R5002
R5001
CN103
C5001
C5002
C5003
C5005
C5004
CN104
21
12
18
17 15
16
19
20
131411109876543 1
2
153
42 8
9
6
711
12
10
19
18 16
17
6
7
5
4
3
2
1
13
11
12
10
14
15 13
12
11
10
8
9
7
5
6
3
4
9
8 6
57
4
3
11
9
10
2
1
2
1
8 9
6
7
4
5
2
3
11
10
13
12
14
15
116
8
10
9
12
11
13
14
6
7 8
9
5
4
10
11
2
3
1
13
12
14
3
2
1
4
8
7
6
5
4
3
2
1
5341
2
7
6
XKP3091
GNDT
ATL7002
QTL1013
ATL7002
100/25
GNDA
GAV
QTL1013
SWPR
QTL1013
SIRIUS_RST
SIRTX
SIRRX
VKN1245-
STBY
STBY
STBY
STBY
GNDU
STBY
220
220
220
220
10K
RT1N241M
220
220
STBY
TC74VHCT125AFTS1
D+5V
9604S-19C
100
9604S-13C
100
STBY
100
100
STBY
D+5V
STBY
STBY
100
30
TC4094BFN
GNDU
0.1
D+5V
VT+9
D+5V
*2
*2
STBY
0.01 0.01
YB YB
V-12
V+12
STBY+5V
RT1N241M
D+5V
10K
GNDU
0.1/16
100
100k
0.1/16
GNDU
STBY
YB
100
TC74VHCT125AFTS1
STBY
100
100
1.8k
1SS355
YB
STBY
D+5V
BR24L16FV-W
TR
TL
STBY
VT+9
52044-1145
22p
1000p
1u
0.01
1000p
1000p
1000p
CHASSIS
STBY
STBY
YB
YB
YB
GNDT
GNDU
9604S-07C
2.CAPACITORS
Rated Voltage: 50V expect for electrolytic capacitors.
Ratings: Capacity(μF)/Voltage(V) unless otherwise noted.
Unit: p-pF or μF unless otherwise noted.
Tolerance: (J) 5% unless otherwise noted.
Rated power: 1/16W unless otherwise noted.
-
+
: AUDIO SIGNAL FLOW
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted.
1.RESISTORS
NOTE
R9097
*2
VSX-918V
X
R9098
0
0
X
SP-B RY
ST+5V
AC RY
TO POWER PACK ASSY
R/C RY
SP-A RY
HP. SW
GNDT
GNDU
D+5V
T+9V
AC WP
-VF
FL AC2
FL AC1
-12V
+12V
SWOUT
GAV
GAV
GNDA
GNDA
XMTX1 XMLSDP XMFS
XMLNK
XM ERR
STBY
XMMUTE
XMRX
XMSGUL_SW
XMDAC_RST
XMANT_REV
XMRST
XMDT4 MODE
13
14
XMSC RATE
(XM BLOCK)
TO DSP+USB MODULE(818,518/J)
TO HDMI+DSP+USB MODULE(918)
XMPOW
EXCEPT
VSX-918V
VSX-918V ONLY
NC
GND
2A
2Y
RX
3A
3Y
1Y 2OE
RX
TX
3OE
4Y
4A
1A
1OE
TX
4OE
VCC
TO VIDEO ASSY
TO FM/AM TUNER UNIT
OSD_ON
SW1
SW2
INH
OSD_ON
SW1
SW2
INH
SWDET
AMUTE
SWDET
AMUTE
V3
V2
V3
V2
OSD DT
V1
OSD CLK
V1
OSD DT
RDS
VSM
OSD CLK
OSD RST
OSD CS
GNDT
OSD RT OSD CS
MAIN ASSY(3/3)
QS
EXPANDER
VSS
Q4
Q3
Q'S
Q8
Q2
Q1
Q7
Q6
CLK
SERIAL IN
Q5
OE
STROBE VDD
GND
2Y
RX
3A
3Y
2A
2OE
TX
4Y
3OE
1A
1Y
RX
TX
4OE
4A
1OE
VCC
918 ONLY
A1
A0
GND
A2
SDA
SCL
Vcc
WP
E2PROM
TUNER CLK
+9V
TR
GNDT
TL
TUNER DO
TUNER CE
TUNER DI
(RCA Jack)
FROM PRE-AMP
(MAIN ASSY 2/3)
HPD_INCESELA
DDC SWNCSELB
HPD_S
MODULE
TO HDMI SWITCHER
A 3/3
CN816
C 2/2
P
CN304
CN303
P
CN4
V 3/5
CN4
B 3/4
A 1/3
A 1/3
A 2/3
(L)
(SW)
CN1001
W
VSX-818V

10.3 MAIN ASSY (3/3)

A
2 3 4
B
C
D
E
F
70
1
VSX-918V-K
2 3 4
5
TX
RX
TX
RX
35
37
36
47
EXP3
EXP2
100
EE_CLK
EXP5
40
39
38
22
2
42
1
41
19
45
46
29 30
22
26 27
28
25
24
22
23
21
1W_WP
19
AC_WP
EE_DT
EE_CLK EE_DT
EE_CLK
1 2
OSD_CLK
OSD_DT
XPROTECT
EE_DT
USBDAO
USBDAI
50
49
47
51
48
50
2324272645
46
AMUTE
42
39
41
403638
37
48
88
35
49
SPA_RY R/C_RY
SPB_RY
51
XM_ERR
52
AC_RY
SW2
OSD_ON
EXPDT
SWDET
EXPCE
EXPCLK
DCDT
OLDT
RDS_CLK
RDS_DT
SW1
77
79
80
78
CONTROL
28
SRIN
RMC
SROUT
1W_WP
100
HPDET
91
INH
93
EX_ST
OSD_RST
OSD_CS
88
T_CLK
T_CE
T_DI
T_DO
CN102
R9065
R9064
D9064
R9063
R9066
R9067
D9065
D9067
Q9064
D9068
Q9065
CN112
R9080
Q9065
R9071
R9072
R9073
R9074
R9010
R9031
C9005
R9013
R9037
Q9001
C9004
C9002
R9002
C9006
D9010
R9033
L9003
R9046
R9039
R9004
X9001
R9041
R9062
C9015
C9010
C9009
R9005
IC9001
R9045
R9048
R9047
R9018
C9016
R9016
R9017
R9014
R9015
R9027
R9029
R9001
R9003
C9003
R9038
C9008
C9019
C9007
C9012
R9025
R9026
R9060
R9024
R9023
R9082
C9081
R9081
R9011
R9012
C9000
R9032
Q9003
D9011
R9009
Q9002
C9013
R9030
Q9007
C9018
Q9006
R9068
R9008
R9036
R9061
R9028
R9044
R9043
R9042
R9020
R9019
R9021
R9022
R9034
CN101
C9014
R9007
C9011
R9006
D9007
D9006
10
5
2
4
1
3
678
9
35 29
3034 26
313233 2527
28 20
191621
18
1723
2224
7
12
1315
14 8910
11 321
456
22 20 18 16 14 10128 462
3133343236353730403938
4243414644
45
2827 29262523 2418 2117 20 2219161310 11 12 1514
5
6
8
7
4 87659321
100
989997949596929391898890858786
1721 1923 1315 11 9 7 5 3 1
484749
50
515254 5356 555758596062 6164 63656669 68 6770717273747577 76787980
848382
81
143
2108
751311129
614
151617
9604S-10C
GNDU
10K
DAP202U
10K
10K
10K
10K
GNDU
DAP202U
1SS355
1SS355
UMD2N
D+5V
10K
UMD2N
D+5V
RT1P241M
221
221
221
5.1k
100K
JQ
2.2/50
100K
RT1N431M
0.01
STBY
YB
YB
1u/10
100K
1SS355
47K
LFCA2R2J
470
STBY
100K
XSS3004-
100K
470
470
1000p
YB
STBY
STBY
STBY
0
0
470
10K
10k
STBY
STBY
STBY
470
470
470
470
470
220
220
YB
0.01
STBY
330/6.3
STBY
47K
*1
*1
*1
270K
0.01
470
220
221
100K
1K
STBY
0
V-12
D+5V
RT1P241M
RT1P241M
V+12
DAN202U
47K
GNDU
STBY
47
DTC143TK
VLCK
VLDT
MCACC
STBY
STBY+5V
0.1
0
220
220
STBY
DSPOL
100K
10K
10K
10K
STBY
470
470
470
6_OHM
*1
MICDET
STBY+5V
9604S-17C
0.047
GNDU
470K
YB
YB
0.047
470K
DAN217U
D+5V
DAN217U
FOR FLASH U-COM
SR_TXD
918,818,518/J ONLY
VSS
T_BUSY
NC
T_VDD
T_SCLK
T_RST
SR_RXD
VSS
T_PGM/OE/MD
TO DSP+USB MODULE(818,518/J)
HDMUTE0
TO HDMI+DSP+USB MODULE(918)
ONLY
VSX-918 V
1
HDREQI
HDMI SW
HD RESET
HDREQO
LS INT
LS RESET
HD DO
HD SCK
HD DI
2
(1/2)
5
3
MUTE_OUT
USB POWER
USB SW
WRITE MOD
XFLAG
LS SDA
LS SCL
USB XRST
USBDAI
USBDAO
USB CTL
BUSY
DSP HREQ
DSP MODE
DIR DO
DIR CS
DSP DO
DSP CLK
DSP RST
DSP SS
DIR ERR
DIR RST
DEC MUTE
NC
9604S-35C
VSX-918V
DSP DI
GNDD
9604S-23C
4
(2/2)
DMUTE
XM/SIRIUS RX
232C CTS
CLK
DSP CLK
DSP DO
DSP DI
BUSY
DSP SS
DSP RST
DSP MUTE
DSP MODE
DSP HREQ
DIR CS
DIR DO
ADMODE
15.7MHZ
XM/SIRIUS TX
DISP RST
32.USB DAO/SR+ RX
USB POWER
USBXRST
31.USB DAI/SR+ TX
USBXFLAG
SIRIUS RST
50.USB SW
52.XMDAC_RST
51.USB WRITE MODE
UART SW
ACIN(WAKEUP)
USB CTL
USB/SR+ SW/HDREQI
1W WUP
LS INT
LOW_CONSUMPTION
12C DT EEPROM/LS SDA
NMI
+5V
XIN
GND
XOUT
XRESET
VSX­918V only
12C CLK EEPROM/LS SCL
CNVSS
GND
DISP CLK/OSD CLK
DISP DO
DISP DI/OSD DT
MAIN m-COM
COMP VIDEO INH
RDS DT/XM LINK ACTIVE
DISP RDY
HD SCK
DISP EN
HD DI
HPDET
VREF
AVCC
AVSS
SIMUKE2
SIMUKE1
DT4 MODE
EXPANDER ST
XPROTECT
DECO MUTE
XM POW
OSD RST
OSD CS
6 OHM
HDDO/HPD_IN
DIR ERR
DIR CDC RST
HDMI REQO/CE
AMUTE
RY_C/R
RY_B
XM ERR
RY_A
MCACC/FRONT IN
RY-AC
EVR CLK
EVR DT
+5V
COMP VIDEO B
GND
OSD_ON
COMP VIDEO A
SW DET
EXP DT/VIDEO2
EXP CE/VIDEO3
DC PROT
EXP CLK/VIDEO1
DSP OVERLOAD
OL DET
RDS CLK/XMLSDP
XMSGNL SW
XMANT_REV
RDS FM+/XM RST
XMSC RATE
T_CE
T_DI
T_CLK
T_DO
FLAC 2
-VF
DISP RST
FLAC 1
DISP CLK
DISP DI
DISP RDY
DISP DO
SRIN
SROUT
RMC
1W WP
DISP EN
MIC DET
GNDU
STBY+5V
GNDU
TO FRONT DISPLAY ASSY
A 3/3
CN401
H
A 1/3
A 2/3
A 1/3
A 1/3
A 1/3
A 1/3
(L)
: Audio Signal Route (L ch)
(SW)
: Audio Signal Route (SubWoofer ch)
FOR FLASH U-COM
CN7
B 3/4
CN3
V 3/5
MAIN ASSY (VSX-918V:XWK3362) (VSX-818V:XWK3358)
A
3/3
818/KU 918/KU
­10K
10K
-
10K 10K
5.6K
1.5K
*1
R9024
R9026
R9023 R9025
SIMUKE For μ-P
VSX-818V
PEG466D8
6 7 8
A
B
C
D
E
5
6 7 8
VSX-918V-K
F
71
1
!
XMLNK3
XMFS3
XMRST3
XMANT3
XMDI3
XMDO3
XMLSDP3
XMMK
XMBK
XMPWR
XMERR
XMMUT3
DIRB
DIRM
DIRERR3
DIRCS
DSPCLK
DSPDI
DIRDO3
DIRRST
DIRD
DIRL
XMLK
XMFD
XMSCRT
XMDT4
VKN1374-A
GNDD
1
RX5
2
GNDD
3
V+5D
4
RX4
5
100u/16
*C127
47u/6.3
C103
47u/6.3
C108
47u/6.3
*C121
C113
0.01u/16
*C122
470p/50
*C128
0.1u/10
C101
NM
C112
NM
C137
NM
C102
0.1u/10
C130NMC129
NM
C135
NM
C136
NM
C110
470p/50
CH
C109
0.1u/10
C107
1000p/50
C111
0.47u/10
C104
470p/50
CH
C105
0.1u/10
C106
0.1u/10
C133
NM
C134
NM
*D122
UDZS5R6(B)
*D121
UDZS5R6(B)
*L122
ATL7002-A
L103
NM
*L121
QTL1013-A
L102
QTL1013-A
L101
QTL1013-A
L104
NM
GNDD
GNDD
GCH
GNDD
GNDD
*IC122
AAT4618IGV-0.5-1
OUT1GND2FAULT
3
ON
4
5
IN
BU9450KV
*IC121
LSDP
1
VSS1
2
3
VDD1
456
7
VDD2
8
9
VSS2
10
RESET#
11
12
13
14
15
VSS3
16
VDD3
17
18
19
VDD4
20
VSS4
21
22
23
VSS5
24
VSS6
25
26
N.C.
272829
TEST30VSS7
31
32
VDD6
333435
36
37
VSS8
38
39
VDD7
40
41
VSS9
42
43
MUTE
44
45
VDD8
46
47
48
AK4114VQ
IC101
DIR&DIT
1
2
3
TEST2
4
5
6
7
8
P/SN
9
XTL0
10
XTL1
11
VIN
12
TVDD
13
14
TX015TX1
16
BOUT17COUT18UOUT
19
VOUT20DVDD21DVSS22MCKO1
23
LRCK
24
SDTO
25
BICK
26
MCKO2
27
DAUX
28
XTO
29
XTI
30
PDN
31
32
33
34
35
INT0
36
INT1
37
AVDD
38R39
VCOM
40
AVSS
41
RX0
42
43
RX1
44
TEST1
45
RX2
46
47
RX3
48
JA101
VKB1159-A
COAX
2
1
*JA121
AKP7201-A
+5V
1
TR-
2
TR+
3
GND
4
*R139
100
*R148
22k
*R146
100
R103
100
R108
100
*R145
100
R102
100k
*R136
3.3k
R104
47
R105
47
R106
22
R132
NM
R107
NM
R135
NM
R137
NM
*R138
1.8k
R109
10k
*R140
100
R133
NM
*R131
1M
*R130
470
R110
0
R141
NM
*R127
1k
R111
18k
F%
*R126
100
R112
10
*R1251k*R124
100
R113
NM
R114
75
R122NMR121
NM
*R142
22k
*R143
22k
R128
NM
*R144
22k
*R147
22k
R129
NM
*R149
10k
R101
100k
TP123
TP136
TP114
TP113
TP124
TP115
TP111
TP110
TP109
TP108
TP107
TP106
TP105
TP104
TP103
TP101
TP102
TP131
TP128
TP127
TP126
TP125
TP122
TP135
TP130
TP129
TP134
TP133
TP116
TP132
TP112
TP121
V3D
V5X2
V1
V5D
V5D
V5D1
V3D
V3D2
V3D1
V3D
V3D3
V5X1
*X121
ASS7065-A
45.1584MHz
ADDT
RX6
RX3
OSC2
DC
*C138
1u/10
*C124
0.1u/10
*C126
0.1u/10
*C125
0.1u/10
*C131
12p/50
CH
*C132
12p/50
CH
*C123
0.1u/10
*R134
22k
AWX8979
AWX9163
AWX9164
Except AS below
North America
EU
SC_TX_OUT
SC_RX_IN
I2C_SCL
I2C_SDA
ANT_REV
SLAVE_SEL
I2S_RATE
LINKACTIVE
COMM_TX_EN
COMM_TXRX_P1
COMM_TXRX_M
COMM_TXRXM
COMM_TXRX_P2
OSC_OUT
OSC_IN
SC_RATE
HSDP_DATA
HSDP_CLK
DT4_MODE
HSDP_EN#
I2S_DATA
I2S_SCLK
I2S_LRCLK
I2S_OCLK
SAII_CLK
SAII_DATA
SAII_REQ
IPS0/RX4
NC_AVSS1
DIF0/RX5
DIF1/RX6
NC_AVSS2
DIF2/RX7
IPS1/IIC
NC_DVSS1
CM0/CDTO/CAD1
CM1/CDTI/SDA
OCLS1/CCLK/SCL
OCKS0/CSN/CAD0
NC_AVSS3
NC_AVSS4
DSP & USB ASSY (VSX-818V:AWX9163)
B
1/4
CN5
M
CN1903
B 1/4
B
2/4,3/4
B
2/4
B
3/4

10.4 DSP & USB ASSY (1/4)

A
2 3 4
B
C
D
E
F
72
1
VSX-918V-K
2 3 4
5
S2DT
FDTI
S2BC
BCKI
S2LR
LCKI
S2MC
USBSW
S1MC
S1DT
S2DT
S1BC
S2BC
S2LR
S1LR
S2MC
XMMK
XMSW
XMLK
S1DT
DIRM
DIRL
XMBK
XMFD
S1BC
S1MC
DIRD
DIRB S1LR
USBRST
USBCTL
USBPWR
USBDAI3
USBDAO3
XFLAG
S1BC
S1DT
S1LR
S1MC
S2BC
S2DT
S2LR
S2MC
RX6
MCLK
C171
NM
C181
NM
C182
NM
C172
NM
L171
NM
*L161
QTL1013-A
L181
NM
GNDD
GNDD
GNDD
NM
IC171
Switch for HDMI
SEL
1
1A
2
1B
3
1Y
4
5
2A
6
2B
7
2Y
8
GND93Y
10
3B
11
3A
12
4Y
13
4B
14
4A
15
ST
16
VCC
NM
IC181
Switch for USB
SEL
1
1A
2
1B
3
1Y
4
5
2A
6
2B
7
2Y
8
GND93Y
10
3B
11
3A
12
4Y
13
4B
14
4A
15
ST
16
VCC
*R161
100
*R163
100
R182
NM
R181
NM
R183
NM
*R162
47
*R164
47
NM
R171
NM
R172
NM
R173
NM
R174
NM
R178
0
R177
0
R176
0
*R197
0
R175
0
R185
0
R186
0
R187
0
R188
0
*R198
0
TP180
TP197
TP196
TP195
TP194
TP193
TP192
TP191
TP190
TP187
TP186
TP183
TP182
V3D6
V3D
V3D4
V3D
V3D5
V3D
DA
UD
DA
DC
MCK1
MCK2
RX6
*C161
0.1u/10 *C162
470p/50
TC74VHC157FTS1
*IC161
Switch for XM/DIR
SELECT
1
1A
2
1B
3
1Y
4
5
2A
6
2B
7
2Y
8
GND93Y
10
3B
11
3A
12
4Y
13
4B
14
4A
15
XST
16
VCC
SEL
H
L
Y
USB
DIR/XM/HDMI
L
SEL
H
DIR/XM
Y
HDMI
DIR
XM
Y
L
H
SEL
DATABCK
LRCKMCK
BCK
LRCKMCK
DATABCK
LRCKMCK
DATA
(Rohm)
B 1/4
B
2/4
B
2/4
B
4/4
B
2/4
B
2/4,3/4
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
73
1
B 1/4
DSP & USB ASSY (VSX-818V:AWX9163)
B
2/4
B 2/4
B
1/4
B
1/4
FDTI
BDTO
CDTO
SDTO
FDTO
DSPDI
DSPDO3
DSPCLK
DSPSS
DSPHRQ3
DSPRST
DSPMOD
DECMUT3
DSPBSY3
LCKO
BCKI
LCKI
D
D
D
D
BCKO
OSC1
NM
CN201
G
1
V
2
TDO
3
TDI
4
TCK
5
TMS
6
P.U
7
100u/4
C229
100u/16
C230
C203
470p/50
C206
0.1u/10
C205
NM
C207
NM
C208
0.1u/10
C209
470p/50
C210
0.1u/10
C204
0.1u/10
C215
0.1u/10
C214
470p/50
C211 NM C212 NM C213 NM
C201
NM
C217
0.1u/10
C216
470p/50
C219
0.1u/10
C218
470p/50
C220
0.01u/16
C222
0.1u/10
C221
470p/50
C202
0.1u/10
C252
0.1u/10 C251
NM
C264
8p/50
CH
C265
8p/50
CH
C232
0.1u/10
C262
0.1u/10
C261
470p/50
CH
C263
NM
C231
NM
C227
NM
C228
0.1u/10
C225
470p/50
C226
0.1u/10
C268NMC267
NM
C266
NM
CH
C224
0.1u/10
C223
NM
L201
QTL1013-A
L251
QTL1013-A
L261
QTL1013-A
L262
NM
L202
ATL7002-A
L203
ATL7002-A
L204
QTL1013-A
GNDD
GNDD
GNDD
GNDD
IC262
NM
1 2 34
5
PDC172A8
IC251
CS#
1
SO
2
WP#
3
VSS
45
SI
6
SCK
7
HOLD#
8
VDD
TC7WH125FU
IC202
G1
1
A1
2
Y2
3
GND
45
A2
6
Y1
7
G2
8
VCC
IC261
TC7WHU04FU
(3/3)
Y
A
GND
VCC
IC261
TC7WHU04FU
(1/3)
Y
A
GND
VCC
IC261
TC7WHU04FU
(2/3)
Y
A
GND
VCC
DSPC56371AF180
IC201
DSP
SDO4_SDI1_PC7
1
IO_GND_1
2
IO_VDD_1
3
SDO3_SDI2_PC8
4
SDO2_SDI3_PC9
5
SDO1_PC10
6
SDO0_PC11
7
CORE_VDD_1
8
PF8
9
PF6
10
PF7
11
CORE_GND_1
12
PF2
13
PF3
14
PF4
15
PF5
16
IO_VDD_2
17
PF1
18
PF0
19
IO_GND_2
20
PF9
21
SCAN22PF10
23
IO_GND_3
24
IO_VDD_3
25
TIO0_PB026TIO1_PB127CORE_GND_228CORE_VDD_229TDO30TDI31TCK32TMS33MOSI_HA034MISO_SDA35SCK_SCL36SS_HA237HREQ38PLLA_VDD39PLLA_GND
40
PLLP_VDD
41
PLLP_GND
42
PLLD_GND
43
PLLD_VDD
44
EXTAL
45
PINIT_NMI
46
RESET_B
47
MODD_IRQD
48
MODC_IRQC
49
MODB_IRQB
50
MODA_IRQA
51
CORE_VDD_3
52
CORE_GND_3
53
SDO0_PE11
54
SDO1_PE10
55
SDO2_SDI3_PE
56
SDO3_SDI2_PE
57
SDO4_SDI1_PE
58
SDO5_SDI0_PE
59
FST_PE4
60
FSR_PE1
61
SCKT_PE3
62
SCKR_PE0
63
IO_VDD_4
64
IO_GND_4
65
HCKT_PE5
66
HCKR_PE2
67
CORE_GND_4
68
ADO_PD1
69
ACI_PD0
70
CORE_VDD_4
71
HCKR_PC2
72
HCKT_PC5
73
IO_GND_5
74
IO_VDD_5
75
SCKR_PC0
76
SCKT_PC3
77
FSR_PC1
78
FST_PC4
79
SDO5_SDI0_PC6
80
RT1N241M
Q201
R202
100
R226
47
R203
10k
R229
47
R253
10k
R254
NM
R255
10k
R256
10k
R257
10k
R252
2.2k
R201
47
R251
47
R222
NM
R208
100
R263
1M
R207
4.7k
R261
22
R232
47
R209
100
R233
47
R264
100
R234
47
R204
47k
R231
47k
R221
47k
R228
47
R220
10k
R219
0
R218
NM
R217
NM
R216
100
R206
47k
R227
47
R235
47
R265
NM
R262
470
R205
NM
R215 NM
R214 NM
R225
47
R213
10k
R212
100
R211
100
R210
100
TP256
TP208
TP207
TP202
TP203
TP204
TP255
TP254
TP253
TP252
TP251
TP205
TP206
TP261
TP262
TP201
TP265
TP264
TP263
V3D
V3D
V3DB
V12
V3D9
V1R2
V3D
V3DC
V3D
V3DA
V3D
V3D
V3D
V3D8
X261
XSS3003-A
24.576MHz
MCK1
DA
OSC2

10.5 DSP & USB ASSY (2/4)

A
2 3 4
B
C
D
E
F
74
VSX-918V-K
1
2 3 4
5
B 2/4
B
1/4,3/4
B
1/4
B
1/4
CN806
C 2/2
LSBK
LSLK
LSFD
LSSD
LSCD
LSBD
DIRCS
DSPCLK
DSPDI
DIRRST
LCKO
BCKO
FDTO
SDTO
CDTO
BDTO
LSLK
LSBK
LSFD
LSSD
LSCD
LSBD
SDTO
CDTO
LSSD
LSFD
FDTO
BDTO
LCKO
LSBK
BCKO
LSCD
LSBD
LSLK
CN2
XKP3081-A
RIN
1
GNDA(DAG)
2
LIN
3
GNDA(DAG)
4
FRO
5
VCOMG
6
FLO
7
RCMUT/OVF
8
SRO
9
GNDA(DAG)
10
SLO
11
GNDA(DAG)
12
GNDA(DAG)
14
CO
15
GNDA(DAG)
16
SBRO
17
GNDA(DAG)
18
SBLO
19
GNDD(USB)
20
V+5D(USB)
21
SWO
13
100u/16
C315
47u/6.3
C318
100u/16
C303
C320
0.1u/10
C319
NM
C317
470p/50
C316
0.1u/10
C313
470p/50
C312
470p/50
C311
470p/50
C310
470p/50
C309
470p/50
C308
NM
C307
NM
C306
0.1u/10
C304
0.1u/10
C305
100p/50
CH
C302
NM
C301
0.01u/16
C322
1000p/50
C321
1000p/50
C314
470p/50
D302
MA152WK
D301
MA152WA
L302
QTL1013-A
L301
QTL1013-A
GNDD
GVCM
GNDD
GNDDA
GDAC
GNDD
AK4626AVQ
IC301
6ch CODEC
SDOS
1
I2C
2
SMUTE
3
BICK
4
LRCK
5
SDTI1
6
SDTI2
7
SDTI3
8
SDTO9DAUX
10
DFS0
11
TST112DZFE13TVDD
14
DVDD15DVSS
16
PDN
17
TST218CAD119CAD020TST321TST4
22
LOUT3
23
ROUT324LOUT2
25
ROUT2
26
LOUT1
27
ROUT1
28
TST5
29
NC
30
LIN
31
RIN
32
DZF2/OVF
33
VCOM
34
VREFH
35
AVDD
36
AVSS
37
DZF1
38
MCLK
39
P/S
40
DIF0/CSN
414243
TDM0
44
R317
100
*R284
*R282
0
R301
47
R302
100
R303
NM
R304
0
R316
47
*R283
0
R306
4.7
R305
NM
R307
NM
R308
NM
R309
100
R310
100
R311
100
R312
100
R313
100
R314
100
R315
NM
56
TP301
TP302
TP303
TP304
TP305
TP306
TP307
TP308
TP309
TP310
TP311
TP312
TP313
TP314
TP315
TP316
TP317
TP318
TP321
TP320
TP319
TP255
TP281
TP277
TP275
TP280
TP271
TP279
TP273
TP274
TP276
TP272
TP278
TP282
V3D
V3DE V5A2
V5A
V5DU
V5A1
MCK2
DC
ADDT
CN9
NM
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
17
18
19
13
DIF1/SCL/CCLK
LOOP0/SDA/CDTI
6 7 8
A
B
C
D
E
F
5
VSX-918V-K
6 7 8
75
1
DSP & USB ASSY (VSX-818V:AWX9163)
B
3/4
B 3/4
CN112
A 3/3
GNDD
GNDD
DIR ERR
DIR RST
DEC MUTE
DSP DI
DSP DO
DSP CLK
DSP RST
DSP SS
BUSY
DSP HREQ
DSP MODE
DIR DO
DIR CS
USB XRST
USB POWER
USB DAI
USB DAO
USB CTL
XFLAG
WRITE MODE
USB SW
XMRST3
USBDAI3
XMDI3
XMLNK3
XMANT3
XMDO3
XMLSDP3
XMLNK
XMLSDP
XMDO
XMMUT3
XMMUT
USBDAO
XMFS
DIRERR
DSPHRQ
DECMUT
DIRDO
DSPBSY
DSPDO
DECMUT
DIRDO
USBDAO
DSPSS
USBRST
DSPCLK
DSPHRQ
USBPWR
DSPMOD
DIRERR
DSPDI
DSPBSY
DIRCS
USBDAI
DSPDO
DSPRST
DIRRST
DSPHRQ3
DIRERR3
XMFS3
DSPBSY3
DIRDO3
DECMUT3
DSPDO3
XMRST
XMDI
XMANT
WRTMOD
USBDAI
USBDAO3
USBCTL
XFLAG
WRTMOD
USBSW
9604S-23C
*CN7
1
2345678
9
1011121314
151617
18
19
20
212223
C331
NM
C332
0.1u/10
*C342
0.1u/10
C341
NM
C351
NM
C352
0.1u/10
L351
QTL1013-A
*L341
QTL1013-A
L331
QTL1013-A
GNDD
GNDD GNDDGNDD
IC331
TC74VHC08FTS1
1A11B21Y32A
4
52B62Y7
GND
83Y93A103B114Y124A134B14
VCC
*IC341
TC74VHCT08AFTS1
1A11B21Y32A
4
52B62Y7
GND
83Y93A103B114Y124A134B14
VCC
IC351
TC74VHCT541AFTS1
G1
1A12A23A34
5A46A57A68A79
A810GND
11Y812Y713Y614Y515Y416Y317Y218Y119G220
VCC
NM
Q341
RT1N241M-TLB
R353
100
R42
100k
R45
100k
R354
100
R44
100k
R333
NM
*R343
330
*R344
330
*R335
100
R334
100
*R332
100
*R342
330
R336
0
R337
NM
R352
NM
R43
100k
R345
NM
47k
R41
NM
*R341
330
TP47
*TP341
TP351
TP27
TP28
TP29
TP30
TP31
TP32
TP33
TP34
TP35
TP36
TP37
TP38
TP39
TP40
TP41
TP42
TP43
TP44
TP45
TP46
TP331
V5D
V5D2
V3D
V5D3
V3DF
V5D
5V -> 3V
Level shifter
for XM,USB
3V -> 5V
Level shifter
for DSP,DIR,XM,USB
3V -> 5V
Level shifter
for XM

10.6 DSP & USB ASSY (3/4)

A
2 3 4
B
C
D
E
F
76
VSX-918V-K
1
2 3 4
5
B 3/4
W
CN1002
CN106
A 3/3
CN805
C 2/2
B
1/4,2/4
B
1/4
!!
USBDAO3
XMFS3
XMLNK
XMFS
XMLSDP
XMDO
XMANT
XMMUT
XMERR
XMPWR
XMSW
XMDI
XMRST
DSPHRQ3
DSPDO3
DIRERR3
DSPBSY3
DIRDO3
DECMUT3
XMANT3
XMLNK3
XMMUT3
XMRST3
XMDI3
XMDO3
XMLSDP3
XMDT4
XMSCRT
XKP3077-A
CN1
RX3
1
uGRTN
2
V+5D(HDMI)
3
GNDD
4
DGRTN5DGRTN6DGRTN
7
V+5D8V+5D
9
GNDA(DAG)10GNDA(DAG)
11
V+5A
12
V+7D(HDMI)
13
CN6
VKN1374-A
V+5D(HDMI)
1
V+5D(HDMI)
2
GNDD
3
GNDD
4
V+7D(HDMI)
5
VKN1418-A
*CN4
XM ERR
1
XM LINKACTIVE
2
XMFS3XM LSDP
4
XM TX5XM ANT_REV6XMRST
7
XM MUTE
8
XM RX
9
XM SW10NC11XM PWR12XM SC_RATE13DT4 MODE
14
100u/16
C21
C25
1u/10
C13
C7
C23
1u/10
C24
1u/10
C15C14
C11
0.1u/10
C12
470p/50
C10
470p/50
C9
0.01u/16
C6
NM
C5
NM
C3
NM
C4
NM
C2
NM
C1
NM
C22
1u/10
D21
UDZS5R6(B)
D1
UDZS5R6(B)
L2
ATL7002-AL1ATL7002-A
L3
GNDD
GCH
GDAC
(CODEC)
GNDD
GNDD
(DSP)
GNDD
GNDD
(DIR)
GVCM
GDAC
GDAC
(CODEC)
GNDD
(XM)
GNDDA
GNDD
GNDD
(DIR)
IC2
PQ1LAX95MSPQ
Vadj
1
GND2Vc
3
Vin
4
5
Vo
IC1
PQ1LAX95MSPQ
Vadj
1
GND2Vc
3
Vin
4
5
Vo
R353
100
*R31
100k
R7
0
R6
NM
R21
20k
F%
R5
NM
R4
NM
R3
NM
R2
NM
R8
NM
R9
NM
R24
12k
F%
R23
100
F%
R352
NM
R1
100k
R22
12k
F%
TP2
TP1
TP3
TP9
TP10
TP11
TP12
TP13
TP4
TP5
TP14
TP15
TP16
TP17
TP18
TP19
TP20
TP21
TP22
TP23
TP24
TP25
TP26
TP64
TP332
TP333
TP334
TP335
TP336
TP337
TP338
TP339
TP340
TP342
TP343
TP344
TP345
TP346
TP347
TP63
TP62
TP61
TP60
TP6
TP7
TP8
V5DH
V5D
V5A
V1V2
V7DHV5DH
V1R2 V3D
V7DH
V5D
DC
RX3
NM
1000p/50
NMNM
ATL7002-A
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
77
1
T
CN953
DSP & USB ASSY (VSX-818V:AWX9163)
B
4/4
B 4/4
B 1/4
B
1/4
!
USBH_D-T
USBH_D+T
XA15T
XA14T
XA13T
XA12T
XA11T
XA10T
XA9T
XA8T
XA19T
XA18T
XA17T
XA7T
XA6T
XA5T
XA4T
XA3T
XA2T
XA1T
XA16T
XD15T
XD7T
XD6T
XD5T
XD4T
XD2T
XD0T
XD3T
XD1T
XA0T
OET
WET
XD0T
XD1T
XD2T
XD3T
XD4T
XD5T
XD6T
XD7T
XD8T
XD9T
XD10T
XD11T
XD12T
XD13T
XD14T
XD15T
XA0T
XA1T
XA2T
XA3T
XA4T
XA5T
XA6T
XA7T
XA8T
XA9T
XD8T
XD9T
XD10T
XD11T
XD12T
XD13T
XD14T
USBRST3
USBH_D-T
USBH_D+T
BM0
BM1
BM2
CPDT
CPCK
RX6
CPRDY
USBRST3
FLCS
WET
SDCS
XD0T
XD1T
XD2T
XD3T
XD4T
XD5T
XD6T
XD7T
XA21T
XA16T
XA15T
XA14T
XA13T
XA0T
XA10T
XA2T
XA1T
XA3T
USBDAO3
CPRST
USBDAI3
XFLAG
USBCTL
CN401
AKM1275-A
V5USB
1
D-
2
D+
3
GND
4
NM
C428
100u/16
C443
100u/16
C425
C471
0.1u/16
C441
0.1u/16
C442
0.1u/16
C436
470p/50
C435
470p/50
C467
0.1u/10
C468
470p/50
C434
0.1u/10
C432
0.1u/10
C433
470p/50
C431
0.01u/16
C427
470p/50
C426
0.1u/10
C430
470p/50
C472
1u/16
C401
0.1u/10
C402
470p/50
C404
470p/50
C403
0.1u/10
C406
470p/50
C405
0.1u/10
C408
C407
0.1u/10
C429
0.1u/10
C424
470p/50
C423
0.1u/10
C422
330p/50
CH
C421
2.2u/10
C420
1200p/50
C419
0.1u/10
C418
C417
0.1u/10
L471
NM
L401
QTL1013-A
L462
QTL1013-A
L403
QTL1013-A
L404
QTL1013-A
GNDD
GNDD
GNDD
GNDD
GNDD
IC471
AAT4618IGV-0.5-1
OUT
1
GND
2
FAULT
3
ON
4
5
IN
IC461
HY57V641620F
VDD1
1
DQ0
2
VDDQ1
3
DQ1
4
5
DQ2
6
VSSQ1
7
DQ3
8
DQ4
9
VDDQ2
10
DQ5
11
DQ6
12
VSSQ2
13
DQ7
14
VDD2
15
LDQM
16
/WE
17
/CAS
18
/RAS
19
/CS
20
BA0
21
BA1
22
A10/AP
23
A0
24
A1
25
A2
26
A3
27
VDD3 V
C
U
V
VD
D
VS
D
D
VD
D
D
VS
D
V
TCC8600-00X-EA-UG
IC401
VSS11XD42XD53XD64XD75XD8
6
VDDI1
7
VSS2
8
VDDIO19XD910XD1011XD1112XD1213XD1314XD14
15
XD1516XA017XA118XA219XA320XA421XA522XA623VDDI224VSS325VDDIO2
26
XA7
27
XA8
28
29
XA13/SDBA0
XA14/SDBA1
UART0RX
READY/MODE0
68
VDDADC
69
VSSADC
70
VSSPLL1
71
XFILT1
72
VDDPLL1
73
VDDPLL
74
XFILT
75
VSSPLL
76
nRESET
77
MODE1
78
USBH0_DN
79
USBH0_DP
80
VSS6
81
USBH1_DN
82
USBH1_DP
83
VDDUSB
84
VDDIO5
85
GPIO_B21
86
GPIO_B22
87
GPIO_B23
88
GPIO_B24
89
GPIO_B25
90
VDDI5
91
GPIO_D15
92
GPIO_D16
93
GPIO_D17
94
GPIO_D1895GPIO_D19
96
VSS7
97
GPIO_D20
98
GPIO_D21
99
TDI
100
TMS
101
TCK
102
TDO
103
nTRST
104
GPIO_A0/SPDIFTX
105
GPIO_A1
106
GPIO_A2
107
GPIO_A3
108
GPIO_A4
109
VDDI6
110
GPIO_A5
111
GPIO_A6
112
GPIO_A7
113
GPIO_A8
114
GPIO_A9
115
GPIO_A10
116
GPIO_A11
117
VSS8
118
VDDIO6
119
GPIO_A12
120
GPIO_A13
121
GPIO_A14
122
GPIO_A15
123
VDDI7
124
XD0
125
XD1
126
XD2
127
XD3
128
L442
VTH1043-A
1
1
2
2
3
3
4
4
L443
NM
L402
10u
L441
VTL1169-A
R446
10
R420
10k
R445
15k
R444
15k
R417
100
R443
0
R423
4.7k
R496
NM
R471
100k
R472
NM
R415
100
R447
10
R422
0
R414
100
R442
0
R473
100
R413
100
R463
47k
R462
NM
R419
100
R499
NM
R412
47k
R411
100
R418
100
R441
NM
R424
100
R421
22
R497
NM
R410
R498
NM
R416
100
TP408
TDI
MTS
TCK
TDO TRST
USBDN
USBDP
VDDIO
GNDD
TP407
TP406
TP405
TP404
TP403
TP402
TP401
TP531
TP532
MUTE
V5DU
V+3DU V18D V+1R8U
V+3DU
V3U
V5USB
V5USB
V+3DU
UD
UD
R474
4.7k
RT1N431M
Q471
IC462
AYW7236-A
A15
1
A14
2
A13
3
A12
4
5
A11
6
A10
7
A9
8
A8
9
A19
10
NC1
11
WE#
12
13
NC2
14
NC3
15
16
A18
17
A17
18
A7
19
A6
20
A5
21
A4
22
A3
23
A2
24
A1
25
A0
26
CE#
27
VSS1
28
OE#
29
DQ0
30
DQ8
31
DQ1
32
DQ9
33
DQ2
34
DQ10
35
DQ3
36
DQ11
37
VCC
38
DQ4
39
DQ12
40
DQ5
41
DQ13
42
DQ6
43
DQ14
44
DQ7
45
46
VSS2
47
BYTE#
48
A16
FLASH ROM
64M SDRA
USB POWER CONTROL
RESET#
RY/BY#
DQ15/A-1

10.7 DSP & USB ASSY (4/4)

A
2 3 4
B
C
D
E
F
78
VSX-918V-K
1
2 3 4
B 4/4
B 1/4
B
1/4
!
!
XA3T
XA4T
XA5T
XA6T
XA7T
XA8T
XA9T
XA10T
XA11T
XA12T
XA13T
XA14T
XA15T
XA16T
XA17T
XA18T
XA19T
XA20T
XA21T
SDCKE
SDCLK
SDCS
WET
OET
FLCS
USBRST3
XD0T
XD1T
XD2T
XD3T
XD4T
XD5T
XD6T
XD7T
XA21T
XA16T
XA15T
XA14T
XA13T
XA0T
XA10T
XA2T
XA1T
XA3T
SDCKE
XA20T
SDCLK
XA12T
XA11T
XA9T
XA8T
XA7T
XA6T
XA5T
XA4T
XD15T
XD14T
XD13T
XD12T
XD11T
XD10T
XD9T
XD8T
CPCK
BM2
BM1
CPRST
USBRST3
USBRST
BM0
CPRDY
CPDT
USBPWR
100u/16
C455
C454
0.1u/10
C485
0.1u/10
C481
0.1u/10
C466
470p/50
C486
470p/50
C484
100p/50
CH
C464
470p/50
C463
470p/50
C461
0.1u/10
C462
470p/50
C465
NM
C451
1u/16
C452
NM
C457
1u/16
C406
470p/50
C405
0.1u/10
C408
470p/50
C407
0.1u/10
C410
470p/50
C409
0.1u/10
C411
0.1u/10
C412
470p/50
C453
NM
C422
330p/50
CH
C421
2.2u/10
C420
1200p/50
C419
0.1u/10
C437
NM
C456
NM
C413
10p/50
CH
C414
470p/50
CH
C418
470p/50
C415
0.1u/10
C416
470p/50
C417
0.1u/10
D451
NM
L461
QTL1013-A
L401
QTL1013-A
L481
QTL1013-A
GNDD
GNDD
GNDD
GNDD
GNDD
GNDD
GNDD
GNDD
GNDD
GNDD
IC403
NM
Vadj1GND2Vc
3
Vin
4
5
Vo
IC461
HY57V641620FTP
VDD1
1
DQ0
2
VDDQ1
3
DQ1
4
5
DQ2
6
VSSQ1
7
DQ3
8
DQ4
9
VDDQ2
10
DQ5
11
DQ6
12
VSSQ2
13
DQ7
14
VDD2
15
LDQM
16
/WE
17
/CAS
18
/RAS
19
/CS
20
BA0
21
BA1
22
A10/AP
23
A0
24
A1
25
A2
26
A3
27
VDD328VSS1
29
A4
30
A5
31
A6
32
A7
33
A8
34
A9
35
A11
36
NC1
37
CKE
38
CLK
39
UDQM
40
NC2
41
VSS2
42
DQ8
43
VDDQ3
44
DQ9
45
DQ10
46
VSSQ3
47
DQ11
48
DQ12
49
VDDQ4
50
DQ13
51
DQ14
52
VSSQ4
53
DQ15
54
VSS3
XA2
XA320XA421XA522XA623VDDI224VSS325VDDIO2
26
XA7
27
XA8
28
XA9
29
XA10
30
XA11
31
XA12
32
XA13/SDBA0
33
XA14/SDBA1
34
XA15/SDnCAS
35
XA16/SDnRAS
36
XA17/NDCLE
37
XA18/DQM0
38
XA19/DQM1
39
VDDI3
40
XA20/DQM1
41
XA21/
42
VDDIO3
43
SDCLK
44
VSS4
45
SDCKE
46
SDnCS
47
nWE
48
nOE
49
nCS0
50
nCS1
51
nCS2
52
nCS3
53
XOUT
54
XIN
55
XTOUT
56
XTIN
57
VDDI4
58
VSS5
59
GPIO_B6
60
NDnWE
61
UART0TX
62
UART0RX
63
READY/MODE0
64
VDDIO4
65
ADIN466ADIN267ADIN0
68
VDDADC
69
VSSADC
70
VSSPLL1
71
XFILT1
72
VDDPLL1
73
VDDPLL
74
XFILT
75
VSSPLL
76
nRESET
77
MODE1
VEF1040-A
JH501
L402
10u
2SA1577(QR)
Q401
R461
NM
R402
100
R431
NM
R401
NM
R403
100
47k
R411
100
R482
10k
R483
100k
R484
100k
R485
100k
R486
10k
R487
10k
R488
100k
F%
R425
NM
R426
4.7k
R427
NM
R428
4.7k
R429
NM
R430
4.7k
R404
100
R405
100
R406
100
R407
2.2M
R454
NM
F%
R453
NM
F%
R451
NM
R452
NM
R456
3.3k
R408
47
R455
1.8k
R409
4.7k
R410
10k
TP409
TP410
TP411
TP412
CLOCK
TP413
TP414
ADIN
GNDD
GNDD
CLOCK
TP541
TP540
TP539
TP538
TP533
TP534
TP535
V+3DU
V3U
V5DUV3D
V+3DU
V+3DU
V+3DU
V3U
V+1R8U V+3DU
X402
CSS1614-A
UD
UD
341S2154
IC481
VCC1
1
XIN
2
XOUT
3
CLOCK_ENAB
4
NC1
5
NC2
6
I2C_SCL
7
I2C_ADDR0
8
I2C_ADDR1
9
I2C_ADDR2
10
CP_READY
11
MODE0
12
MODE1
13
NC3
14
I2C_SDA
15
MODE2
16
ROSC
17
SPI_nSS18SPI_SIMO19SPI_SOMI
20
SPI_UCLK
21
NC4
22
NC5
23
NC6
24
NC7
25
NC8
26
NC9
27
NC10
28
NC11
29
NC12 30
NC13
31
CLOCK_OUT
32
NC1433NC15
34
NC1635NC1736NC18
37
nRESET
38
VSS
39
VCC2
40
X481
ASS1172-A
32.768kHz
1
2
4
3
R481
1M
C482
5p/50
CH
C483
5p/50
CH
RT1N431M
Q402
IC402
S-1200B18-M5
VIN
1
VSS
2
ON/OFF3NC
4
5
VOUT
R432
1k
1.8VReg.
64M SDRAM
BOOT MODE
5
6 7 8
A
B
C
D
VSX-918V-K
5
6 7 8
E
F
79
1
17
16
14
15
13
12
8
7
6
5
9
11
10
4
3
2
1
R681
C682
R682
Q681
KN601
C778
C683
C684
R685
R686
IC603(3/3)
R690
R692
R693
R691
D683
C688
C685
R687
C686
IC610
C687
C781
R783
C783
C782
R781
R782
IC603(2/3)
C784
R785
R787
R784
R786
Q683
D684
R694
Q505
R788
R778
Q501
R777
R603
C603
Q601
R601
C632
R632
Q631
R631
CN704
C653
R653
Q651
R1102
R651
R652
R654
Q652
C654
C780
C779
D777
C609
C613C611
R611
R613
R695
D677
R688
R689
R677
D784
D681
D678
C696
R696
R678
D682
R609
C607
R728
C605
D783
IC603(1/3)
D601
C615
R617
R619
R621
D778
C697
Q697
Q696
R623
Q605
C635
C637
C636
R615
R635
R636
R637
C634
IC602(2/2)
R639
D631
R638
R640
C633
C659
R699
D645
R648
R647
R645
D646
R646
D603
R642
C630
Q633
R641
D632
R661
C661
R659
R663
C657
R729
D780
C663
D647
D779
IC602(1/2)
D648
R667
D651
C665
R669
R671
C655
R665
R666
R672
C656
C658
R662
R660
R664
IC601(2/2)
R670
C666
R668
D652
R673
Q655
D653
Q656 D654
R674
R680
R727
R726
R725
C604
R604
Q602
R602
C660
C662
C610
C664
D675
R630
R616
R675
D782
R618
D676
R676
D604
R610
R612
C612
R614
C608
R730
C614
D602
D781
IC601(1/2)
R622
C616
D606
C606
R626
R620
R624
R698
Q698
R697
R1101
R628
Q606
D608
18
15
16
SL
17
3
9
8
14
FL 6
7
(MAIN ASSY 2/3)
TO MAIN ASSY
XPROTECT
GNDU
NECK
6OHM
OLDT
DCDT
STBY
(SR)
F_DRIVE
AMUTE
FR
GNDA
SR
GNDA
13
STBY
DC DET.
11
12
C
2
5
10
1
4
13
6
3
9
8
7
14
12
11
1
2
5
4
(2ch POWER PACK)
IC602:
POWER AMP
3
10
14
SR
9
8
13
6
7
FL
GNDA
SL
GNDA
C
(FR)
STBY
11
12
FR
2
1
5
4
(2ch POWER PACK)
IC601:
POWER AMP
10
SBL
F-DRIVE
SLO
P13
P12
FLO
SBR
C
SL
XPROTECT
FL
6OHM
OLDT
NECK
DCDT
SR
SR
F-DRIVE
FR
AMUTE
600/3_5
600/3_2
SBLO
SBRO/SBO/SW
CO
DC_DET
P6
CO
P1
P13 P12
SLO
SL
SRO
FLO
FRO
602_2
602_5
P6
FL
P12
P1
P13
SRO
602_5
P6
602_2
600/3_5
600/3_2
601_5
601_2
FL
C
SL
SBL/SB
SBR/SW
AMUTE
FR
601_2
P12
601_5
P6
FRO
XPROTECT
OL
P1
P13
P1
1k
4.7/50
2SC5938A(AB)
10k
GNDA
CHASSIS
VNF1084
2SC5938A(AB)
47p
330p
CH
1.8k
56k
PAC015A
330
1.8k
ACN7094
0.22 1SS133
YB
100/16
56k
STBY
AEK7009
(1A)
3p CH
3pSTBY
100/16
56k
330p
56k
1.8k
CH
PAC015A
2.2/50
NP
0.22 ACN7094
330
820
1.8k
(GRBL)
2SC2240
1SS133
820
NP
2.2/50
22k
(GRBL)
2SC2240
22k
10k
1K
2SC5938A(AB)
10K
1K
4.7/50
STBY
STBY
STBY
GNDU
XKM3007
STBY
STBY
STBY
0
4.7/50
1K
2SC5938A(AB)
10k
YB
47p
4.7/50
CH
1SS133
100/16
3p
STBY
1.8k 56k
STBY
STBY
STBY
CH
STBY
STBY
STBY
STBY
STBY
10k
STBY
STBY
330p YB
56k
47pCH
68K
STBY
PAC015A
1SS133
0.22
ACN7094
330
1.8k
1SS133
1000p
220/6.30
YB
(QR)
2SC4081
2SC4081
(QR)
2.2/50
22k
NP
(GRBL)
820
2SC2240
1SS133
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
820
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
STBY
820
1.8k
STBY
330
47p
CH
330p
1.8k
56k
STBY
56k
PAC014A
3p
CH
ACN7094
1.8k
0.22
1SS133
STBY
STBY
(GRBL)
2SC2240
820
2.2/50
1SS133
NP
22k
W117
W118
2SC5938A(AB)
10k
10k
47k
STBY
10k
1K
4.7/50
D+5V
100/16 100/16
STBY
STBY
STBY
STBY
STBY
3p
CH
STBY
STBY
STBY
STBY
STBY
330p
56k
1.8k
56k
YB
47p
CH
STBY
PAC014A
68K
STBY
0.22
ACN7094
1SS133
330
1.8k
33k
RT1N241M
10k
0
22k
D+5V
2.2/50
NP
820
2SC2240
(GRBL)
1SS133
POWER PACK ASSY (XWZ4325)
C 1/2
C 1/2
CN110
A 2/3
(FL)
(FL)
(FL)
(FL)
(SL)
(SL)
(SL)
(SL)
(C)
(C)
(C)
(C)
2 3 4

10.8 POWER PACK (1/2) and TRANS2 ASSYS

A
B
C
D
E
F
80
1
2 3 4
VSX-918V-K
11 10
11 10
43 12
897645231
134562
78 4659231
D751
R1105
D752
RY752(3/3)
RY751(3/3)
RY501(3/3)
RY753(3/3)
D754
R1104
D753
D758
R1103
D757
D742
D741
D744
D743
C740
R740
D746
D745
D747
L754
R772
R789
L501
R755
L753
RY501(2/3)
R741
R742
R743
R744
R756
C755
R790
R771
C517
C771
RY753(1/3)
RY501(1/3)
W240
C756
C763
W244
C764
W247
C761
C762
W238
C785
C772
W236
C753
W248
C754
W272
C751
C752
L761
R761
R762
L762
L751
R751
R752
L752
C709
R716
R1110
R763
R764
R753
R754
RY752(2/3)
RY751(1/3)
RY751(2/3)
RY752(1/3)
R711
Q705(2/2)
R714
R715
Q707(1/2)
Q705(1/2)
D703
IC608
IC609
IC606
C704
IC607
IC604
IC605
C703
R710
Q707(2/2)
W201
R712
C712
D712
C711
D711
C702
D702
C708
H702
H701
C701
C707
CN1201
R745
R746
R747
C765 C766
C759
C521
C773
C757 C758
CN702
CN701
851
R1250
C1250
C1251 R1251
C872
IC853
IC851
IC852
IC702
R707
C706
Q702
R732
R702
R704
R706
R705
R708
C705
D713
Q704
R703
Q703
R722
R721
R713
IC701
R731
R701
Q721
Q701
R709
D701
Q724
J6
R724
J4J5J3
J3 to J7
J7
Q722
R723
R1255
R1256
: AUDIO SIGNAL ROUTE
( ) DC OUTPUT DETECTOR
Q696,697:
Q605,606,633,655,656,683, Q505: OVERLOAD DETECTOR
XPROTECT
+12V
GNDU
SP-A_RY*4SP-B_RY
R/C_RY
*4
*4
*4
*4
*4
Indicated in 1SS133-T
3.DIODES
BA:CQMBA(Film Cap)
Unit: p-pF or μF unless otherwise noted.
Rated Voltage:50V except for electrolytic capacitors.
Ratings:Capacity(μF)/Voltage(V) unless otherwise noted.
M:CQMA(Film Cap)
2.CAPACITORS
Tolerance:(J)± 5% unless otherwise noted.
Rated power:1/4W unless otherwise noted.
1.RESISTORS
Unit:k-kΩ,M-MΩ or Ω unless otherwise noted.
NOTE
WHITE
J603
J602
WHITE
WHITE
DB911NDO
DB211NDO
J601
DB910NDO
DB910NDO
DB410NDO
YELLOWJ605
REDJ604
STBY
(SBR)
STBY
*4
*4
*4
*4
*4
*4
*4
WHITE
J607
DB118ND0
DB621ND0
BROWN
J606 BLUE
(SR)
(FR)
J701 DB813ND0
J702 DB813ND0
/J: 1.2k
* /KU,KC: 2.4k
Others: 2.2k
ST+5V
-29.7V
GNDU
D
*2
*2
AEK7022-A
AEK7022-A
AEK7022-A
ICP-N10
AEK7022-A
AEK7022-A
AEK7022-A
*1
STBY
C
B
*
6.8B
MTZJ
-22.9V
J21
D20PYY1130E
GNDU
ST+5V
STBY
STBY
STBY
AC WUP
ST+5V
A
STBY
J52
AC RY
GNDU
D20PYY0410E
ASSY
STBY
*5 *5
+
-
+
­*8
CN753
SP B L
SP B R
*5
+
-
C
*5
*5
­*8
CN752
+
SL
+
-
SR
*5 *5
-
FL
CN751
-
+
*8
+
FR
REG B
REG G
AC WUP
AC RY
FL AC2
FL AC1
REG B
DREG
DREG
-VF
HP.SW
A.MUTE
AC WUP
AC RY
FL AC2
FL AC1
REG B
REG G
52147-0610
DREG
REG B
52147-1110
DREG
GNDU
HP L
HP G
HP R
A.MUTE
HP.SW
51048-1100
J47
XDX3065
STANDBY
TRANS2 ASSY
TO HEADPHONE ASSY
*2
*1
*1
*1
*1
*1
*1
*1
*1
ICP-N10
518/J
*1
STBY
TO
DB932ND0
PRIMARY
TO TRANS3 ASSY
STBY
DB232ND0
DB932ND0
DB230ND0
DB030ND0
STANDBY
W382
SITUATION
A-D
A.B
NO SIGNAL
±61.4
/J
±49.7
Others
/KU
POINT VOLTAGE
(V)
61.4±
+
-
~
~
+
-
~
~
F-DRIVE
SBLO
SBRO/SBO/SWO
CO
SLO
SRO
FLO
FRO
602_5
P6
602_2
600/3_5
600/3_2
601_5
601_2
P12
XPROTECT
P1
NECK
6OHM
1SS355
1SS355
1SS355
ASR7001
ASR7001
ASR7001
ASR7001
1SS355
1SS355
1SS355
100/25
68K
1SS355
1SS355
1SS355
1SS355
STBY
STBY
PUF 100 1/4W
STBY
PUF 100 1/4W
ATH1004
ASR7001-
4.7K
4.7K
4.7K
ASR7001-
1W
4.7
*4
STBY
STBY
*4
*4
ASR7001-
*4
*4
*4
*4
PUF 100 1/4W
ATH1004
PUF 100 1/4W
PUF 100 1/4W
ATH1004
ATH1004
PUF 100 1/4w
ATH1004
1/50
10k
0
1W
4.71W4.71W4.7
4.7
1W
ASR7001-
ASR7001-
ASR7001-
ASR7001-
STBY
RN4903
1k
10k
1SS355
RN4903
RN4903
D+5V
D+5V
XCH3012--F
3300u/42
(10A)
(10A)
(10A)
XCH3012--F
3300u/42
2SA2005(E)
(10A)
(10A)
(10A)
RN4903
D5SBA20(B)
100/10
100/35
MTZJ22D
5600/71
XCH3027
XCH3027
5600/71
RT1N241M
52147-0410
4.7K
4.7K
4.7K
4.7K
CHASSIS
NP
1/4W
NP
STBY
STBY
22
GNDU
10/100
47k
47k
1SS133
1k
2SC2240
2SA1145
10/100
22
2SA1145
2SC5511(E)
D5SBA20(B)
47k
2SC2240
47k
STBY
3.3
C 1/2
D
TRANS2 ASSY (XWZ4335)
D
(FL)
: Audio Signal Route (Front L ch)
(SL)
: Audio Signal Route (Surround L ch)
(C)
: Audio Signal Route (Center ch)
55
Q
G
1551
O
C 2/2
C 2/2
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. ICP-N10, MFD BY ROHM CO., LTD. FOR IC701 and IC702.
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. AEK7021 MFD, BY LITTELFUSE INK. FOR IC853.
(FL)
(FL)
(FL)
(FL)
(FL)
(FL)
(SL)
(SL)
(SL)
(SL)
(C)
(C)
(C)
(C)
IC853 AEK7021 (7A)
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. AEK7009 FOR IC610 MFD, BY LITTELFUSE INC.
/KUXJ/CA
*1
3.9K
R703 R704
R701 R702
4.7K 180K
R707 R708
2.7k 10K
R709 R710 R722
R721
XKE3041
XKE3040
XKE3050
*5
Not used
763,764
D751,753,757
R1103,R1104,R1105
753,754,756,
761,762
751,752,755,
*4
/KUXJ/CA
0.1 BA
0
5
6 7 8
A
B
C
5
6 7 8
VSX-918V-K
D
E
F
81
1
CN803
CN805
CN806
213 645
2
1
4
5
3
9
10
7
8
6
11
12
13
1
2
8
7
6
5
4
3
13
15
12
11
10
9
14
16
19
20
17
21
18
15
14
10
8
11
12
9
13
5
3
4
7
6
2
1
-12V
GNDA
GNDU
KM200TA6
GAV
XKP3066
DGRTN
V+5D1+12V
GDAC
GNDD
V+7D
AD+5V
V+5D2
W212
XKP3070
V+5D1
GDAC
GNDD
TO VIDEO ASSY
SWOUT
GNDA
-12V
GNDU
+12V
GAV
DGRTN
DGRTN
GNDD
V+5D
UGRTN
NC
TO DSP+USB MODULE(818,518/J)
TO DSP+HDMI+USB MODULE(918)
W170
V+5A
V+5D
V+5D
GNDA(DAG)
GNDA(DAG)
DGRTN
RIN
V+7D
GNDA(DAG)
W169
RCMUT/OVF
FLO
GNDA(DAG)
FRO
LIN
GNDA(DAG)
CO
SWO
SLO
GNDA(DAG)
GNDA(DAG)
SRO
GNDA(DAG)
V+5V(USB)
SBLO
SBRO
GNDD
GNDA(DAG)
GNDA(DAG)
STBY
POWER PACK ASSY(2/2)
XKM3010
CN815
TO MAIN ASSY
(MAIN ASSY 1/3)
RIN
GNDA(DAG)
LIN
GNDA(DAG)
RCMUT/OVF FLO
FRO
GNDA(DAG)
SBRO
SBLO
CO GNDA(DAG) SWO GNDA(DAG) SLO GNDA(DAG) SRO
C 2/2
C 2/2
POWER PACK ASSY (XWZ4325)
CN302
P
CN1
B 3/4
CN1
V 3/5
CN2
B 2/4
CN2
V 2/5
CN109
A 1/3
(FL)
: Audio Signal Route (Front L ch)
(SL)
: Audio Signal Route (Surround L ch)
(C)
: Audio Signal Route (Center ch)
(SW)
: Audio Signal Route (SubWoofer ch)
(L)
: Audio Signal Route (L ch)
(FL)
(L)
(L)
(SL)
(C)
(SW)
(FL)
(SL)
(C)
(SW)
(SW)
(SW)

10.9 POWER PACK ASSY (2/2)

A
B
2 3 4
C
D
E
F
82
1
VSX-918V-K
2 3 4
+12V
SP-A_RY
R/C_RY
SP-B_RY
XPROTECT
C860
Q805
CN816
810
Q803
C802
Q801
C801
D801
C813
C812
IC804
D806
R806
C806
R1109
R807
R808
Q806
Q804
R812
R811
Q802
C808
D831
D829
C870
C871
D830
D828
C809
IC803
C807
CN808
Q808(1/2)
Q807(1/2)
Q808(2/2)
D807
C901
Q807(2/2)
C850
D900
R901
R900
Q810
D827
C810
C811
R813
IC805
21 19
20
17
18
15
16
11 913
14 10
12
7
6
5
4
3
8
1
2
2134 765 8 11910
1
2
5
3
7
6
4
8
9
2
5
4
1
3
GNDA
100/25
GNDU
GNDV
-12V
GNDT
RT1P241M
XKM3011
51048-1100
RT1P241M
D+5V
T+9V
ST+5V
2200/25
RT1P241M
2200/25
S1WB(A)60SD
V+5D1V+5D2
-12V
GNDD
GAV
100/16
0.01
YB
KIA7809API
DGRTN
+12V
MTZJ6.2B
T+9V
0
10K
1uF/16V
10K
1K
GNDU
AC_WUP
AC_RY
FL_AC1
-VF FL_AC2
HP_SW
RT1N241M
ST+5V
ST+5V
RT1N241M
STBY
STBY
RT1N241M
REG_G
REG_B
4700/16
DGRTN
DREG
REG_B
STBY
GDAC
0.1
YB
STBY
D3SBA20(B)
DREG
STBY
MTZJ6.2B
W208
100/10
BA05FP
0.01
YB
AD+5V
RT3N22M
RT3P22M
1SS133
RT3N22M
RT3P22M
MTZJ7.5B
V+5D1
V+5D2
100/10
0.1
10
1K
2SD1858X(QR)
V+7D
MTZJ6.2B
100/10
0.01
YB
1K
D+5V
NJM2831F05
+
-
~
~
OUT IN
1-B6
+
-
~
~
1-B6
1-B6
1-B6
OUT IN
STBY
Tolerance:(J)± 5% unless otherwise noted.
Umit: p-pF or μF unless otherwise noted. Ratings:Capacity(μF)/Voltage(V)
2.CAPACITORS
electrolytic capacitors.
Rated Voltage:50V except for
unless otherwise noted.
NOTE
1.RESISTORS
Unit:k-kΩ,M-MΩ or Ω unless otherwise noted. Rated power:1/4W unless otherwise noted.
GAV
SWOUT
+12V
TO MAIN ASSY
(MAIN ASSY 3/3)
GNDA
GAV
NC
AC RY
-12V
FL AC1
-VF
FL AC2
AC WP
D+5V
T+9V
HP.SW
SP-A RY
GNDT
GNDU
ST+5V
SP-B RY
R/C RY
V+5D2
TO REGULATOR ASSY
J43
XDX3066
V+5D1
SP Relay Drive
*2
REG G
DREG
GNDD
DREG
REG B+
+12V
GAV
REG B-
-12V
DGRTN
DGRTN
DGRTN
T.+9V REG.IC
*2
5.0V
11.1V
AD+5V REG IC
V+7H
DGRTN
DGRTN
V+5
V+5
DGRTN
STBY
W81
W80
5.0V
D+5.0V REG.IC
C 2/2
N
CN111
A 3/3
CN800
C 1/2
C 1/2
(SW)
(SW)
Q802
Q801
O
VSX-818V
VSX-918V
*2
5
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
83
1
7
6
5
4
3
8
10
9
12
11
1
2
14
13
8 9
6
7
5
4
3
2
1
11
10
14
13
12
15
16
8
7
5
6
9
10
12
11
4
3
2
1
13
15
14
16
76 45312
CR3
CB3
Y3
CR2
CB2
Y2
CR1
CB1
CR3
CR2
CR1
CB3
CB1
CB2
C52B
C52A
Y2
Y3
Y1
Y1
CHASSIS
75
STBY STBY
75
STBY
75 75
STBY
75
STBY
75
STBY
0.01
CHASSIS
YB
75
STBY
75
STBY
75
STBY
STBY
V-5.6V
STBY
STBY
STBY
STBY
STBY
0.01
STBY
0
STBY
STBY
STBY
NJM2581M
STBY
0.01
CHASSIS
GNDV
STBY
0
100/10
STBY
100/10
GNDV
STBY
1k
1k
CHASSIS
STBY
75
0.01 YB
75
STBY
STBY
1k
TC74HC4052AF
0.047
0.047
1k
STBY
1k
1k
TC74HC4052AF
0.047 0.047
75
2.2K
2.2K
9604S-07C
XKB3025
V+5.6V
R561
C563
R560
C562
R559
C561
R558
C560
R557
C559
R556
C558
C567
R555
C557
R554
C556
R553
C555
R578
R577
Q500
R579
R575
R576
C575
R574
C577
C578
IC553
C583
C582
C574
C576
C573
R573
C579
C581
C580
R570
R572
R571
C566
R564
C565
C568
R563
C564
R569
IC552
C571 C572
R566 R565
R568
R567
R581
IC551
R562
R582
CN551
JA551
C570C569
3X,3Y
NONE
H 2X,2YLL
H
*
LH
H*
(IN2)
(MUTE)
(IN1)
L
JA552 XKB3025(1/2)
L
C52A
TC74HC4052
INHLC52B
L
1X,1Y
0X,0YHL(OSD)
(IN3)
OUT
Cb
Cr
COMPO
IN3
Y
Cr
Cb
Y
COMPO
IN2
Cr
COMPO
IN1
Cb
VEF1040
390
REF
Vee3
6dB
Vee2
6dB
GND
Driver
Vcc3
Driver
Vcc2
Vee1
6dB Driver
Vcc1
VEE
GND
B
INH
3Y
1Y
Cr
YCOM
2Y
A
3X
XCOM
Cb
0X
VCC
1X
2X
JA552 XKB3025(2/2)
Cr
COMPONENT OUT
Cb
0Y
GND
VEE
INH
1Y
B
A
Y
0X
3X
518/J
818, 918
YCOM
3Y
2Y
0Y
XCOM
1X
VCC
2X
ONLY for
Y
OSD
INH
VIDEO B
VIDEO A
V-5.6V
V+5.6V
GNDV
Y
Rated Voltage: 50V expect for electrolytic capacitors.
1.RESISTORS
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted. Rated power: 1/16W unless otherwise noted.
Ratings: Capacity(μF)/Voltage(V) unless otherwise noted.
Unit: p-pF or μF unless otherwise noted.
Tolerance: (J) 5% unless otherwise noted.
2.CAPACITORS
-
+
NOTE
COMPONENT VIDEO ASSY (XWZ4339)
E
E
(Y)
: Video Signal Route (Component Y ch)
(Cb)
: Video Signal Route (Component Cb ch)
(Cr)
: Video Signal Route (Component Cr ch)
P
(Cb)
(Cr)
(Y)
(Cb)
(Cb)
(Cr)
(Cr)
(Y)
(Y)
CN310
P
2 3 4

10.10 COMPONENT VIDEO, 5.1CH INPUT and TRANS3 ASSYS

A
B
C
D
E
F
84
1
VSX-918V-K
2 3 4
5
1
2
3
13
24
75
6
AEK7008
1/4W4.7
0.033BA
0.033BA
ISR139-400
470/35
1/4W
4.7
0.1/100
0.1/100
51048-0300
330
4.7/50
100p
470K
CH
100p
220p
YB
CH
470K
YB
330
0.01
330
CHASSIS
4.7/50
220p
YB
100p
CH
470K
4.7/50
220p
YB
470K
CH
330
220p
YB
4.7/50
(0.8A)
52044-0745
100p
R882
C883
C884
IC357
D363
R881
C882
C881
C406
891
R1004 C1010
C1002
R1002
R1001
C1004
C1003
C1001
R1003
C1012
C1009
R1011
C1013
R1009
C1015
C1022
C1014
R1010
R1012
C1016
C1021
CN307
STBY
M
M
TO POWER PACK ASSY
DB932ND0
GNDU
GNDU
+24V
DB932ND0
STBY
DB232ND0
DB030ND0
TO MAIN ASSY
(MAIN ASSY 2/3)
DB230ND0
STBY
SR
SW
SL
CN309
C
XDX3064
J22
TO MAIN ASSY
(MAIN ASSY 1/3)
SL
SR
AG
AG
C
SW
AG
GF
5.1CH INPUT ASSY (XWZ4341)
F
TRANS3 ASSY (XWZ4337)
G
CN105
CN251
A 2/3
C 1/2
A 1/3
(SL)
: Audio Signal Route (Surround L ch)
(C)
: Audio Signal Route (Center ch)
(SW)
: Audio Signal Route (SubWoofer ch)
(SL)
(C)
(SW)
XKB3035
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. AEK7008 MFD, BY LITTELFUSE INK. FOR IC357.
6 7 8
A
B
C
D
E
5
VSX-918V-K
6 7 8
F
85
1
GND
Vout
Vcc
9
8
5
6
3
4
7
1
2
1
3
2
75
64108
913
14
11
12
3
E
16
15 17
B
C
E
CB
E
B
C
21
23
22
272625
24
292830
18
20
14
15
19
16
17
1
2
11
10
12
13
9
8
7
6
5
4
3
2
1
7576777879807173 7274
11
2
5
4
2
5
3
4
3
DRST
DDI
DCK
DDO
MICDET
1WUP
DEN
DRDY
DDO
DCK DDI
DRST
KEY4 KEY3
DEN
KEY1
KEY2
1WUP
DRDY
DDI DDO
DCK
DRST
BUS1
VAC1
G1
G3G5G4G7G6
G2
G10
G9
G8
G2G1G4G3G5
KEY3
G8G7G6
G9
G10
G12
G11S1G13
S4
S3
S2
STBY
NC
VDD
SCK1
RESET
FROM PC
SO1
VPP(IC)
NC
GNDU
VSS0
SI1
TO MAIN ASSY
MICDET
Stby+5V
(MAIN ASSY 3/3)
1WUP
RMC
SROUT
GNDU
DISPEN
DISPRDY
SRIN
DISPDI
DISPCK
DISPDO
EXCEPT VSX-918V
FLAC1
FLAC2
-VF
DISPRST
3.0
STANDARD
2.4
1.8
KEY IN VOLTAGE [V]
FS SURR
STEREO/
KEY2
KEY1
VSS0
AVDD
VDD0
NC
EN A
FEN A
FEN B
EN B
KEY3
KEY4
AVSS
NC
NC
DISPEN
SRIN
VSX-918V Only
DISPDTI
DISPDTO
DISPCK
NC
DISPRDY
TEST
1W_WUP
DISPRST
IC(VPP)
X1
X2
VDD1
VSS1
G10
G3G1G2G6G5G4G7G8G9
STBY
ADVANCED
AUTO SURR
1.2
0.6
DIRECT
ENA
0.0
MCACC
PHASE
KEY 3
GNDU
GNDU
ENB
D15A05-125-2651
J42
2
1
1211 1513 14
V401
XAV3037
181716 212019 2322 373635 38
(XAV3038)
C402
L401
C401
C403
C487
C490
C489
C488
R424
R408
R407
R409
R410
R420
R419
R421
C441
CN402
C442
R403
D403 R402
R417
R413
R415
R414
R416
R412
R430
C400
CN401
R411
Q442
S513
S507
R507
S506
R506
R423
R425
R406
Q441
R405
D405
Q484
C422
C421
C416
D404R404
X401
R401
R422
C417
C418
402
C413
R482
R481
R483
R484
R485
R486
C484
C481
C485
C486
C483
C482
R489
R487
R488
R490
R517
R518
R519
R492
R495
R493
R494
S505
R505
S504
R504
S503
R503
S502
511
404
YB
0.01
2.2u
LFCA2R2J
220/6.3
YB
0.01
TS
1000p
1000p
1000p
1000p
100K
47k
47k
47k
47k
100
100
100
0.01
47/10
52492-0920
YB
CEAL-TS
1SS355
100k
100
0
220
220
220
220
220
RT1N241M
STBY
52044-1745
47k
VDD
XSX3005-
VSG1024
VSG1024
2.7K 1.6K
VSG1024
VDD
10k
1SS355
RT1N241M
100k
100k
1k
100k
2SA1576A(QR)
4.7k
1SS355
STBY
0.1
STBY
YB
5MHz
VSS1142
GP1UE274XKC1
1M
100k
STBY
0.1 YB
STBY
470p
220p
220p
VSG1024
1.2k
820
VSG1024
680
VSG1024
51063-0505
51063-0505
ROTARY ENCODER ASSY (XWZ4286)
IH
I
FRONT DISPLAY ASSY (VSX-918V:XWZ4285) (VSX-818V:XWZ4284)
H
CN101
A 3/3
2 3 4

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

A
B
C
D
E
F
86
1
VSX-918V-K
2 3 4
5
3
1
2
3
1
2
3233343536
31
403738
39
41
42
43
45
44
47
46
49
48
50
51
52
53
54
55
56
57
58
60
59
666970 68 67 64 6165 63 62
3
3
2
2
1
1
GNDU
MICDET
S24
S23
S21 S22
S19
S20
PWRLED
S17 S18
S15 S16
S14
S13
S11 S12
S10
S9
S8
BUS2
KEY2
KEY3
KEY4
G12
G11
G13
S3S2S1
S5S6S7
S4
PWRLED
KEY1
S5S6S7
S10
S9
S8
S13
S12
S11
S14
S15
S16
S18
S17
S19
VAC2
S22
S20
S21
S24
S23
(ORANGE)
MCACC LED CENTRE LED
(BLUE)
J44
D15A03-100-2651
FENB
FENA
GNDU
MICDETNCCENTER_LED
NC
MCACC_LEDNCNCNCNC
NC
PWRLED
S24
S23
S21 S22
S19
S20
SIGNAL SEL
AUX
DISPLAY UCOM
S18
S17
S14
S16
S15
S13
S12
G13
G12
G11
S11
S10
S9
S8
VF
VDD2
S2
S1
S7
S6
S5S4S3
SPEAKER
SB CH
ST+
AM
FM
USB
TUNE-
TUNE+
CDR/TAPE/MD
CD
STBY
RETRIEVER
ST-
3.0
3.6
KEY IN VOLTAGE [V]
DVD/LD
TV/SAT
1.8
2.4
DVR/VCR
VIDEO/FRONT
0.6
1.2
0.0
D15A03-100-2651
J41
GNDU
LED
*1
KEY1
PWRON
POWER
0.0
39 4140 4342 44 4645 47 49 5048 51 53
(515 FL HOLDER VNF1096)
52 54 5655 5857 6261
3.TACT SWITCHES
Rated Voltage: 50V expect for electrolytic capacitors.
Indicated in VSG1024
NOTE
2.CAPACITORS
1.RESISTORS
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted. Rated power: 1/16W unless otherwise noted. Tolerance: (J) 5% unless otherwise noted.
Ratings: Capacity(μF)/Voltage(V) unless otherwise noted.
Unit: p-pF or μF unless otherwise noted.
-
+
D500
R550
R551
D502
C511
C512
S452
R452
R464
S464
IC401
C419
R451
S451
R450
S450
R463
S463
R462
S462
R449
S449
R448
S448
R461
S461
R460
S460
S447
R453
C451
S459
R459
C452
C423
C420
C414
R497
R498
R496
R520
R500
R499
R522
R523
R521
R526
R524
R525
R527
R528
R529
C412
C411
C410
R531
R530
R532
R534
R533
470 512
S512
R471
S471
R458
S458
R457
S457
R456
S456
R455
S455
C453
R454
S454
R465
R472
C454
R501
501
471
D501
S501
180
390
SLR343BC4T(JKLM)
SLI-343DCW(STU)
51063-0305
51063-0305
CHASSIS
XSX3009-
STBY
KN512
STBY
STBY
VSG1024
2.7K
VSG1024
VSG1024
2.7k
VSG1024
PE5550
0.01
1.6K
VSG1024
1.2k
VSG1024
1.6k
VSG1024
1.2k
VSG1024
820
VSG1024
VSG1024
680
820
VSG1024
680
VSG1024
1000p
4.7k
YB
1000p
YB
4.7k
YB
STBY
100/35
STBY
YB0.01
47/50
TS
0.01
YB
YB
YB
VSG1024
5.1K
VSG1024
2.7K
VSG1024
1.6K
VSG1024
1.2K
VSG1024
820
1000p
VSG1024
680
YB
1000p
YB
4.7k
4.7k
VDD
51063-0305
51063-0305
*1
VSG1024
KJH
JOG ASSY (XWZ4289)
K
POWER KEY ASSY (VSX-918V:XWZ4288) (VSX-818V:XWZ4287)
J
D501
R501
(JKLM)
390
No use
No use
SLR-343BC4T
VSX-918V VSX-818V
*1
For VSX-918V
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
87
1
5
3
4
2
132
1
2
2
1
1
132
5
3
4
6
5
8
37
4
9
132
10
STBY
TO FRONT IN ASSY
STBY
SHEILD
D+5V
GNDD
SHEILD
OPT1
V+5D
FRONT OPT
GNDD
OPT3
GNDD
GNDD
OPT2
GNDD
TO DSP+USB MODULE(818,518/J)
TO DSP+HDMI+USB MODULE(918)
(DIGITAL IN BLOCK)
OPT_OUT
GNDD
NOTE
1.RESISTORS
2.CAPACITORS
Tolerance: (J) 5% unless otherwise noted.
Unit: p-pF or μF unless otherwise noted. Ratings: Capacity(μF)/Voltage(V) unless otherwise noted.
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted. Rated power: 1/16W unless otherwise noted.
Rated Voltage: 50V expect for electrolytic capacitors.
-
+
KN1902
KN1901
C1906
C1905
JA1902
JA1901
JA1900
C1907
C1908
C1904
C1903
R1904
F1901
R1903
C1902
R1902
C1909
CN1902
C1901
R1901
CN1903
C1900
R1900
CN1904
VNE1948-A
CHASSIS
STBY
YB0.1
GP1FAV51TK0F
GP1FAV51RKBF
GP1FAV51RKBF
100p
0.01
CH
1000p
YB
CH
0.1
YB
CEAL-TS
100/10
0.01
STBY
YB
CTF1295
STBY
100
B5B-PH-K-S
STBY
0.1 YB
100
VKN1181
0.1 YB
100
STBY
DIGITAL INPUT ASSY (XWZ4299)
M
CN5
V 1/5
CN5
B 1/4
M
2 3 4

10.12 DIGITAL INPUT, REGULATOR and HEAD PHONE ASSYS

A
B
C
D
E
F
88
1
2 3 4
VSX-918V-K
3
2
1
5
6
4
8 119104756123
3
12
4
2
3
5
1
7
8
4
TO POWER PACK ASSY
J47
XDX3065
HP SW
GNDU
AMUTE
HP G
HP R
HP L
XDX3066
J43
TO POWER PACK ASSY
REG B-
+12V
-12V
GAV
IC807
-18.7V
-11.9V
-12V REG.IC
+12V REG.IC
IC801:
IC802:
18.5V
11.8V
REG B+
REG G
DREG INPUT
GNDD
V+5D1
DREG INPUT
V+5D2
*1
5.0V
5.0V
GNDD
GNDD
C1555
C1553
C1554
Q1551 Q1552
C1551
R1553
R1554
C1552
C1557
C1556
C1558
1551
C1562
R1556 R1555
R1557
R1552
C1561
R1551
IC802
C804
C806
C803
C805
IC801
R801
CN800
IC808
C818
C819
D810
C809
D814
R809
R820
C817
R810
C810
R819
C816
D813
R818
IC809
R802
IC807
JA1551
51048-0600
CHASSIS
VNF1084
4.7k
2SC5938A(AB) 2SC5938A(AB)
4.7k
KN1551
0.022
YB
0.01
470p
CH
0.1
150 1W
150 1W
0.022
470p
0.01
YB
YB0.1
CH
YB
47/50
47/50
330
2W
NP
YB
YB
1k
NP
2W
330
KIA7912PI
0.01 0.01
KIA7812API
330/3W
W378
52147-1110
W380
0.01 221/10
W379
MTZJ6.2B
0.33/50
1K
150
0.01
3K
221/10
100/10
0
STBY
W376
NJM2389F
STBY
XKB3066-
100/16
100/16
CEJQ
MTZJ6.2B
MTZJ6.2B
OUT IN
OUTIN
OUTIN
OUTIN
810
C 2/2
REGULATOR ASSY (XWZ4316)
N
N
HEAD PHONE ASSY (XWZ4321)
O
O
CN702
C 1/2
IC809 C809 C810 R809 R810 R820 D814 IC807 R819 C817 C816 D813 IC808
W376 W379 W380 W378
NJM2389F
O O O(1K) O(3K) O(150) O
-
-
-
-
­BA50BCOT
­ O O
-
918/KU
*1
818/KU
(FL)
: Audio Signal Route (Front L ch)
(FL) (FL)
5
6 7 8
A
B
C
5
6 7 8
VSX-918V-K
D
E
F
89
1
13
14
15
16
17
19
18
11
12
9
8
10
7
6
20
21
23
22
24
5
42
1
3
124
3
4
5
3
2
1
10
13 11
12
321
456
97
8
8
7
18
16
14
10
12
8
6
19
17
11
9
15
13
7
6
4
2
351
4
75
6
3
2
1
756
8
3
4
5
6
2
1
16141315121110
9
21
C864
R859
R858
C863
R857
C852
C854
Q852
R856
C860
C861
C866
C865
R892
D360
C859
D359
R853
R852
L853
C858
C851
R855
C862
IC851
C853
L851
L852
D651
C380
C444
C350
IC303
R390
C333
Q303
C1360
R391
R317
R302
R318
R319
C302
R392
R305
C308
C309
R307
R308
C306
C305
R306
C340
C338
R854
C857
C856
X851
C855
CN304
C391
C390
C392
CN303
CN310
R309
D307
C347
R310
D301
R393
D302
D308
C313
C314
R316
Q302
C335
R315
D304
CN302
R303
R304
C307
C339
C310
C379
R394
C377
C304
R301
C378
JA352
JA351
L302
L305
L306
L304
L303
IC301
C311
C334
D303
C312
R314
R313
R312
R311
Q301
CN354
OSD BLOCK
(OSD)
CVout VDD2
VSS2
CVin
DT
CK
VDD1
SYNin
CS
CHARA
SEPc
SEPout
OSCout
OSCin
C2 SEPin
C1
BLANK
C3
RST
OSD
Xin
Xout
VDD1 VSS1
(D+5V)
SW OUT
CN306
VCR PLAY
TV/SAT
FUNCTION SELECTOR
VCR REC
JA305
MONI
Vout1
Vin5
SW5
14.32MHz
(A+5V)
TO MAIN ASSY
(MAIN ASSY 3/3)
Except VSX-918V
OSD DT
OSD CLK
OSD CS
OSD RT
VIDEO3
VIDEO2
VIDEO1
SW DET
A.MUTE
OSD_ON
SW1
SW2
INH
SR IN
SR OUT
VSX-918V Only
NC
SR TXD
SR RXD
RMC
VIDEO A
VIDEO B
VIDEO INH
OSD
TO COMPONENT VIDEO ASSY
V+5.6V
V-5.6V
GAV
-5.6V
SW4
Vin4
SW3
Vin3
VEE
STBY
TO POWER PACK ASSY
-12V
GAV
+12V
GNDU
918,818,518/J
TO FRONT VIDEO ASSY
GNDA
SWOUT
LD/DVD
Vout2
VCC
SW1
SR OUT
2 1
SR PLUS
VSX-918V ONLY
SR IN
2
1
3
SR OUT
3
4
TXD
RXD
6
RMC
SR IN
Vin1
Vout3
Vin2
GND
SW2
+5.6V
Q301, Q302 RIPPLE FILTER
FOR VIDEO FUNC. SW
GAV
FRONT V
XKB3041
XKB3048
GAVS
V-5_6VS
100/10 TS
STBY
2.2k
STBY
10K
220
0.047
100/10 TS
2SC4081(QR)
0.047
V+5_6VS
0.047
100/10
TS
STBY
STBY
1SS355
CH
STBY
47p
10k
1SS355
470
33u
CH
24p
1k
CH
100p
PDC162A
0.047
VOS1
STBY
STBY
DAP202K
V+5_6VS
100/16
YB
0.1
100/16
NJM2243M
1k
YB
330p
(AB)
2SC5938A 4.7k
0.01
YB
1k
0
75
47/25
1.2k
STBY
CHASSIS
0
75
47/25
220p
1k
YB
75
220p YB
75
0.1
100/16
YB
TS
NJM2595M
10k
ASS1056
CH
CH
24p
18p
CH
15p
VOS2
9604S-13C
1000/10
47/16
0.1
+12V
UDZS5.1B
9604S-19C
GAVS
9604S-07C
47p
150
CH
1SS355
1k
1k
1SS355
DAN202U
2SB1237X (QR)
0
YB 0.047
STBY
39/3W
STBY
1.5k
UDZS6.2B
W319
KP200TA6L
75
47/25
0.1
100/16
YB
TS
VKB1243
CHASSIS
0.01 YB
0
STBY
220p
75
STBY
YB
XKN3015
QTL1013
YB
0.047
STBY
UDZS6.2B
1.5k
STBY
39/3W
2SA1858X(QR)
1k
1k
+12V
B2B-PH-K-S
V+5_6VS
OSDRT
OSDVIN1
OSDDT
OSDCK
OSDCS
OSDRT
OSDCK
OSDCS
OSDDT
OSDVIN1
VIDEO ASSY (VSX-918V:XWZ4294) (VSX-818V:XWZ4292)
P
P
CN130
A 3/3
CN129
A 3/3
CN901
R
CN803
C 2/2
CN551
E
(V)
(V)
(V)
(V)
(V)
(V)
(V)
(V)
(V)
(V)
(V)
(V)
(V)
(SW)
(SW)
(SW)
2 3 4

10.13 VIDEO, PRIMARY, FRONT VIDEO and TRANS1 ASSYS

A
B
C
D
E
F
90
1
2 3 4
VSX-918V-K
5
5
4
1
3
2
4321
321
1
2
3
5
4
R902
C910
C911
C909
C907
C908
C906
C902 C901
C916
R904
C915
R903
R901
R905
C903
KN3001
KN51
C57
R51
C56
C55
T51
C51
D58
C61
C54
R54
IC51
55
C60
C53
D51
IC52
R53
D55
RY51
D57
Q51
C52
CN901
FUSE1
CN51
W291
W290
51
D56
RY51
R52
J2
J1
NOTE
2.CAPACITORS
Unit: p-pF or μF unless otherwise noted.
1.RESISTORS
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted. Rated power: 1/16W unless otherwise noted. Tolerance: (J) 5% unless otherwise noted.
+
-
Rated Voltage: 50V expect for electrolytic capacitors.
Ratings: Capacity(μF)/Voltage(V) unless otherwise noted.
R
XKB3063
JA902
L
V
U+5V REG.IC
D20PYY0410E
J52
AC WUP
AC RY
ST+5V
5.0V
TO TRANS2 ASSY
GNDU
12.2V
STBY
W286 W287
W276
ASR7013
POWER RELAY
(2/2)
FVL
GNDA
FVR
TO MAIN ASSY
FRONT V
GAV
TO VIDEO ASSY
W282,284,293
AKR7001-
W294,680,682
N
L
AKP1060
L
N
J2:XDX3071
11.7V
J1:DB117NB0
ATT7043
OUT IN
+
-
~
~
CHASSIS
330
470p
0.01
0.22
0.01
470p
0.22
CH
100p
CH
100p
330
100p
470k
CH
100p
CH
470k
YB
YB
CEAL-TS
75
47/25
GNDU
CHASSIS
VNE1948-A
VNF1084
0.01 YF
0.01
RCN1080
0.01 YF
YF
0.01/AC250V
ACE7013
MTZJ5.1B
10k
47/25
NJM78L05UA
51048-0400
STBY
STBY
DF06SA
1000/16
3.3k
1SR139-400-T
RT1N431M
XCG3010-
0.01/AC250V
1SS133
YB
YB
YB
YB
B5B-PH-K-S
H51 H52
RKP1751
1SS133
ASR7013
(1/2)
27 1/2W
PRIMARY ASSY (XWZ4305)
Q
TRANS1 ASSY (XWZ4320)
S
FRONT VIDEO ASSY (XWZ4300)
R
CN1201
TO AC CORD
D
CN107
A 1/3
CN354
P
SRQ
NOTE FOR FUSE REPLACEMENT
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS OF FUSE.
CAUTION -
(V)
: Video Signal Route
(L)
: Audio Signal Route (L ch)
(SW)
: Audio Signal Route (SubWoofer ch)
(V)
(V)
(L)
(L)
REK1153 (8A)
LIVE
NEUTRAL
6 7 8
A
B
C
D
5
6 7 8
VSX-918V-K
E
F
91
1
3
2
1
7
4
6
510
9
11
8
2
3
1
12
13
14
C951
F951
R951
JA951
KN951.
C954
C952
C953
JA952
C972
R952
Q952
Q951
R984
R986
R987
IC952
R988
R956
C961
R958
C955
R981
R982
C959
R953
R955
C967
R985
C973
C981
C980
R980
C971
D975
L972
R970
L970
R969
L971
C969
C970
R979
CTF1295
0.1
YB
100
GP1FMV51RK0F
VNF1084
STBY
0.1
0.01
XKN3017
STBY
STBY
RT1P241M
RT1N241M
STBY
TC4066BFN
10K
STBY
STBY
STBY
1k
100K
STBY
STBY
22K
10K
470p
6.8k
100k
10/50
STBY
STBY
STBY
0
STBY
STBY
DAP202U
GNDD
STBY
STBY
STBY
ATH7015
STBY
JQ
100/16
0.1
0
1.RESISTORS
2.CAPACITORS
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted.
NOTE
Unit: p-pF or μF unless otherwise noted. Ratings: Capacity(μF)/Voltage(V) unless otherwise noted. Rated Voltage: 50V expect for electrolytic capacitors.
Rated power: 1/16W unless otherwise noted. Tolerance: (J) 5% unless otherwise noted.+
-
STBY
123
FRONT OPT
(CHASSIS)
GNDCH
1
2 3
MIC IN
Audio/
USB
V5
1
D-
D+
GND
4
3
2
(MIC)
JA953 XKP3086-
FRONT IN ASSY (XWZ3366)
T
T

10.14 FRONT IN ASSY

A
2 3 4
B
C
D
E
F
92
1
VSX-918V-K
2 3 4
5
-
+
-
+
1
4
2
3
5
4
1
2
3
11
97
9
108
57
6
6
5
8
3
4
3
4
1
2
1
2
C956
D951
C960
R972
R957
R960
C965
D957
R959
R954
IC951
C962
C963
R966
C964
R967
C957
C958
R963
D953
R961
IC951
C968
R962
D952
CN953
CN951
CN956
10/50
1k
UDZS5R1(B)
100p
33p
4.7k
100k
DAN217
33k
100
NJM4565MD
0.01 10/50
4.7k 33p
33k
10/50
0.01
100
10/50
UDZS5R1(B)
100k
100
NJM4565MD
UDZS5R1(B)
B4B-PH-K-S
B5B-PH-K-S
9604S-09C
(1/2)
MIC AMP
(MIC)
(2/2)
D-
GNDD
D+
V5 USB
SHIELD
D+5V
TO DIGITAL IN ASSY
(COMPLEX ASSY 2/3)
GNDD
SHIELD
FRONT OPT
STBY
(MAIN ASSY 1/3)
NC
NC
FRONTR
GNDA
FRONTL
GNDA
V-7
TO MAIN ASSY
MICSW
MICOUT
V+7
MCACC SW
CN956
9604S-11C
(USB BLOCK)
TO DSP+USB MODULE(818,518/J)
TO DSP+HDMI+USB MODULE(918)
T
CN122
A 1/3
CN401
B 4/4
CN401
V 4/5
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
93
1
192
3
76 8
54
D7307
C7311
JA7001
D7302
D7301
C7309
C7310
D7304
D7306
C7302
R7308
R7302
C7304
R7304
D7305
C7301
R7307
C7306
C7303
D7303
R7301
C7305
R7306
R7305
R7303
SIRIUS TX
SIRIUS RX
GNDCH
VNE1948
KN7302
STBY
KN7301
UDZS6R2(B)
STBY
UDZS6R2(B)
BKP1127
UDZS6R2(B)
UDZS6R2(B)
UDZS6R2(B)
STBY
STBY
GND
UDZS6R2(B)
330
STBY
47K
STBY
STBY
STBY
UDZS6R2(B)
STBY
47K
330
STBY
STBY
STBY
STBY
STBY
SIRIUS ASSY (XWZ4343)
U
U

10.15 SIRIUS ASSY

A
B
2 3 4
C
D
E
F
94
1
2 3 4
VSX-918V-K
-
+
-
+
4
6
7
8
5
2
8
3
4
1
9
8
6
7
5
3
4
2
1
C7314
R7312
IC7301
R7316
C7320
R7325
C7308
R7314
C7307
R7313
R7318
C7316
C7315
C7312
C7313
R7315
R7317
C7319
R7320 C7318
R7322
R7321
R7319 C7317
R7311
IC7301
CN7301
(2/2)
GNDA
SIRIUS RESET
SIRIUS R
GNDA
SIRIUS L
SIRIUS TX
SIRIUS RX
STBY
(1/2)
V-7V
V+7V
(MAIN ASSY 3/3)
TO MAIN ASSY
10/50
AT
4.7K BA4560RF
4.7K
18K
STBY
STBY
STBY
18K
STBY
18K
330p
YB
330p
YB
10/50
AT
4.7K
4.7K 18K
0.01
AT
100
10/50
100K
100
10/50
AT
100K
BA4560RF
0.01
9604S-09C
CN132
A 1/3
U
5
6 7 8
A
B
C
D
E
F
VSX-918V-K
5
6 7 8
95
1
HDMI & DSP & USB ASSY (VSX-918V:AWX9162)
V
1/5
V 1/5
V 2/5
V 3/5
M
CN1903
V
2/5
V
2/5,3/5
!
XMLNK3
XMFS3
XMRST3
XMANT3
XMDI3
XMDO3
XMLSDP3
XMMK
XMBK
XMPWR
XMERR
XMMUT3
RX6
RX2
DIRB
DIRM
DIRERR3
DIRCS
DSPCLK
DSPDI
DIRDO3
DIRRST
DIRD
DIRL
XMLK
XMFD
XMSCRT
XMDT4
CN5
VKN1374-A
GNDD
1
RX5
2
GNDD
3
V+5D
4
RX4
5
47u/6.3
C103
47u/6.3
C108
47u/6.3
*C121
100u/16
*C127
*C123
0.1u/10
*C122
470p/50
C106
0.1u/10
C105
0.1u/10
C104
470p/50
CH
*C124
0.1u/10
C107
1000p/50
C102
0.1u/10
C109
0.1u/10
*C125
0.1u/10
*C126
0.1u/10
C110
470p/50
CH
C130NMC129
NM
*C138
1u/10
C111
0.47u/10
*C128
0.1u/10
C101
NM
C112
NM
C137
NM
C113
0.01u/16
C133
NM
C134
NM
C135
NM
C136
NM
*D122
UDZS5R6(B)
*D121
UDZS5R6(B)
*L121
QTL1013-A
L102
QTL1013-A
L101
QTL1013-A
L104
NM
L103
NM
*L122
ATL7002-A
GNDD
GNDD
GNDD
GNDD
GCH
*IC122
AAT4618IGV-0.5-1
OUT1GND2FAULT
3
ON
4
5
IN
BU9450KV
*IC121
LSDP
1
VSS1
2
3
VDD1
456
7
VDD2
8
9
VSS2
10
RESET#
11
12
13
14
15
VSS3
16
VDD3
17
18
19
VDD4
20
VSS4
21
22
23
VSS5
24
VSS6
25
26
N.C.
272829
TEST30VSS7
31
32
VDD6
333435
36
37
VSS8
38
39
VDD7
40
41
VSS9
42
43
MUTE
44
45
VDD8
46
47
48
AK4114VQ
IC101
DIR&DIT
1
2
3
TEST2
4
5
6
7
8
P/SN
9
XTL0
10
XTL1
11
VIN
12
TVDD
13
14
TX0
15
TX116BOUT
17
COUT18UOUT
19
VOUT20DVDD21DVSS22MCKO123LRCK
24
SDTO
25
BICK
26
MCKO2
27
DAUX
28
XTO
29
XTI
30
PDN
31
32
33
34
35
INT0
36
INT1
37
AVDD
38R39
VCOM
40
AVSS
41
RX0
42
43
RX1
44
TEST1
45
RX2
46
47
RX3
48
JA101
VKB1159-A
COAX
2
1
*JA121
AKP7201-A
+5V
1
TR-
2
TR+
3
GND
4
*R148
22k
*R145
100
R103
100
2
1
4
3
6
5
8
7
*R139
100
R108
100
2
1
4
3
6
5
8
7
*R146
100
R105
47
R106
22
R102
100k
R107
NM
R101
100k
R109
10k
R110
0
R111
18k
F%
*R149
10k
R112
10
R133
NM
R129
NM
R113
NM
R128
NM
R114
75
*R143
22k
*R142
22k
R141
NM
*R140
100
*R138
1.8k
R137
NM
R135
NM
R132
NM
*R136
3.3k
*R144
22k
R121
NM
*R147
22k
*R131
1M
*R130
470
*R1271k*R126
100
*R1251k*R124
100
R122
NM
R104
47
TP115
TP121
TP122
TP123
TP124
TP114
TP113
TP111
TP110
TP109
TP108
TP107
TP106
TP105
TP135
TP104
TP103
TP101
TP102
TP134
TP131
TP128
TP127
TP126
TP133
TP132
TP136
TP116
TP129
TP112
TP130
TP125
V5D
V5D
V5D1
V3D
V3D2
V3D
V3D
V3D3
V3D1
V1
V5X1
V5X2
*X121
ASS7065-A
45.1584MHz
OSC2
ADDT
RX3
DA
DC
*C131
12p/50
CH
*C132
12p/50
CH
*R134
22k
AWX8977
AWX9162
Except as below
North America
SC_TX_OUT
SC_RX_IN
I2C_SCL
I2C_SDA
ANT_REV
SLAVE_SEL
I2S_RATE
LINKACTIVE
COMM_TX_EN
COMM_TXRX_P1
COMM_TXRX_M
COMM_TXRXM
COMM_TXRX_P2
OSC_OUT
OSC_IN
SC_RATE
HSDP_DATA
HSDP_CLK
DT4_MODE
HSDP_EN#
I2S_DATA I2S_SCLK
I2S_LRCLK
I2S_OCLK
SAII_CLK
SAII_DATA
SAII_REQ
IPS0/RX4
NC_AVSS1
DIF0/RX5
DIF1/RX6
NC_AVSS2
DIF2/RX7
IPS1/IIC
NC_DVSS1
CM0/CDTO/CAD1
CM1/CDTI/SDA
OCLS1/CCLK/SCL
OCKS0/CSN/CAD0
NC_AVSS3
NC_AVSS4
2 3 4

10.16 HDMI & DSP & USB ASSY (1/5)

A
B
C
D
E
F
96
1
2 3 4
VSX-918V-K
5
V 1/5
V
2/5
V
2/5
V
2/5,3/5
V
4/5,5/5
V
2/5,3/5
V
2/5
V
2/5
To HDMI Block
Sub Ass'y No:
UDT
UBCK
ULR
UMCK
S2DT
FDTI
S2BC
BCKI
S2LR
LCKI
S2MC
USBSW
S1MC
HLRS1DT
HFDT
S2DT
S1BC
S2BC
HBCK
S2LR
S1LR
HMCK
S2MC
XMMK
XMSW
XMLK
S1DT
DIRM
DIRL
XMBK
XMFD
S1BC
S1MC
DIRD
DIRB S1LR
HDDO
HMCK
HDRST
RX2
HLR
HDRQI
HDRQO
HBCK
HDMUT
HDDI
HDSCK
SDTI
HFDT
BDTI
CDTI
UDT
USBRST
USBCTL
USBPWR
ULR
WRTMOD3
USBDAI3
USBDAO3
XFLAG
UMCK
RX6
UBCK
S1BC
S1DT
S1LR
S1MC
S2BC
S2DT
S2LR
S2MC
USBREQ
HDSW
MCLK
C181
NM
C191
0.1u/10
C171
0.1u/10
*C161
0.1u/10 *C162
470p/50
C182
NM
C173
C172
470p/50
C192
470p/50
CH
*L161
QTL1013-A
L181
NM
L191
QTL1013-A
L171
QTL1013-A
GNDD
GNDD
GNDD
GNDD
IC191
(4/4)
11
12
13
14
7
IC191
TC74VHC08FTS1
(1/4)
3
1
2
14
7
IC191
(2/4)
6
4
5
14
7
IC191
(3/4)
8
9
10
14
7
TC74VHC157FTS1
*IC161
Switch for XM/DIR
SELECT
1
1A
2
1B
3
1Y
4
5
2A
6
2B
7
2Y
8
GND93Y
10
3B
11
3A
12
4Y
13
4B
14
4A
15
XST
16
VCC
TC74VHC157FTS1
IC171
Switch for HDMI
SELECT
1
1A
2
1B
3
1Y
4
5
2A
6
2B
7
2Y
8
GND93Y
10
3B
11
3A
12
4Y
13
4B
14
4A
15
XST
16
VCC
NM
IC181
Switch for USB
SELECT
1
1A
2
1B
3
1Y
4
5
2A
6
2B
7
2Y
8
GND93Y
10
3B
11
3A
12
4Y
13
4B
14
4A
15
XST
16
VCC
*R164
47
*R162
47
R184
NM
R181
NM
*R161
100
R171
100
R182
NM
R172
47
R183
NM
R173
100
*R163
100
R174
100
R193
100
R192
100
R194
47
R195
47
R196
100
R191
100
R197NMR198
NM
R185
0
R186
0
R187
0
R188
0
R175
NM
R176
NM
R177
NM
R178
NM
TP169
TP197
TP196
TP195
TP194
TP193
TP192
TP191
TP190
TP198
TP189
TP188
TP187
TP161
TP162
TP163
TP164
TP165
TP166
TP167
TP168
TP186
TP170
TP171
TP172
TP173
TP174
TP175
TP177
TP178
TP179
TP180
TP182
TP183
TP184
TP185
V3D6
V3D7
V3D4
V3D
V3D
V3D5
V3D
V3D
OSCU
DCDC
DA
HDUD
DA
MCK2
MCK3
MCK1
SEL
H
L
Y
USB(Rohm)
DIR/XM/HDMI
L
SEL
H
DIR/XM
Y
HDMI
DIR
XM
Y
L
H
SEL
DATABCK
LRCKMCK
BCK
LRCKMCK
DATABCK
LRCKMCK
DATA
1000p/50
AWX9162- /J
6 7 8
A
5
6 7 8
VSX-918V-K
B
C
D
E
F
97
1
HDMI & DSP & USB ASSY (VSX-918V:AWX9162)
V
2/5
V 2/5
V 1/5
V
1/5
V
1/5
V
1/5
V
1/5
FDTI
BDTO
CDTO
SDTO
FDTO
DSPDI
DSPDO3
DSPCLK
DSPSS
DSPHRQ3
DSPRST
DSPMOD
DECMUT3
CDTI
BDTI
DSPBSY3
LCKO
BCKI
LCKI
BCKO
OSC1
SDTI
USBREQ
NM
CN201
G
1
V
2
TDO
3
TDI
4
TCK
5
TMS
6
P.U
7
100u/4
C229
100u/16
C230
C203
470p/50
C206
0.1u/10
C205
NM
C207
NM
C208
0.1u/10
C209
470p/50
C210
0.1u/10
C251
NM
C202
0.1u/10
C201
NM
C215
0.1u/10
C214
470p/50
C211 NM C212 NM C213 NM
C232
0.1u/10
C231
NM
C204
0.1u/10
C252
0.1u/10
C217
0.1u/10
C216
470p/50
C219
0.1u/10
C218
470p/50
C220
0.01u/16
C222
0.1u/10
C221
470p/50
C227
NM
C228
0.1u/10
C266
NM
CH
C225
470p/50
C264
8p/50
CH
C265
8p/50
CH
C226
0.1u/10
C262
0.1u/10
C261
470p/50
CH
C263
NM
C224
0.1u/10
C223
NM
C268NMC267
NM
L261
QTL1013-A
L201
QTL1013-A
L262
NM
L203
ATL7002-A
L251
QTL1013-A
L204
QTL1013-A
L202
ATL7002-A
GNDD
GNDD
GNDD
GNDD
IC262
NM
NC
1
INA
2
GND0
3
OUTY
4
5
Vcc
PDC173A8
IC251
CS#
1
SO
2
WP#
3
VSS
45
SI
6
SCK
7
HOLD#
8
VDD
TC7WH125FU
IC202
G1
1
A1
2
Y2
3
GND
45
A2
6
Y1
7
G2
8
VCC
IC261
TC7WHU04FU
(1/3)
Y
A
GND
VCC
IC261
TC7WHU04FU
(3/3)
Y
A
GND
VCC
IC261
TC7WHU04FU
(2/3)
Y
A
GND
VCC
DSPC56371AF180
IC201
DSP
SDO4_SDI1_PC7
1
IO_GND_1
2
IO_VDD_1
3
SDO3_SDI2_PC8
4
SDO2_SDI3_PC9
5
SDO1_PC10
6
SDO0_PC11
7
CORE_VDD_1
8
PF8
9
PF6
10
PF7
11
CORE_GND_1
12
PF2
13
PF3
14
PF4
15
PF5
16
IO_VDD_2
17
PF1
18
PF0
19
IO_GND_2
20
PF9
21
SCAN22PF10
23
IO_GND_324IO_VDD_3
25
TIO0_PB026TIO1_PB127CORE_GND_228CORE_VDD_229TDO30TDI
31
TCK32TMS33MOSI_HA034MISO_SDA
35
SCK_SCL
36
SS_HA237HREQ38PLLA_VDD39PLLA_GND
40
PLLP_VDD
41
PLLP_GND
42
PLLD_GND
43
PLLD_VDD
44
EXTAL
45
PINIT_NMI
46
RESET_B
47
MODD_IRQD
48
MODC_IRQC
49
MODB_IRQB
50
MODA_IRQA
51
CORE_VDD_3
52
CORE_GND_3
53
SDO0_PE11
54
SDO1_PE10
55
SDO2_SDI3_PE
56
SDO3_SDI2_PE
57
SDO4_SDI1_PE
58
SDO5_SDI0_PE
59
FST_PE4
60
FSR_PE1
61
SCKT_PE3
62
SCKR_PE0
63
IO_VDD_4
64
IO_GND_4
65
HCKT_PE5
66
HCKR_PE2
67
CORE_GND_4
68
ADO_PD1
69
ACI_PD0
70
CORE_VDD_4
71
HCKR_PC2
72
HCKT_PC5
73
IO_GND_5
74
IO_VDD_5
75
SCKR_PC0
76
SCKT_PC3
77
FSR_PC1
78
FST_PC4
79
SDO5_SDI0_PC6
80
RT1N241M
Q201
R202
100
R203
10k
R226
47
214
3
658
7
R229
47
214
3
658
7
R252
2.2k
R253
10k
R254
NM
R255
10k
R256
10k
R257
10k
R232
47
R251
47
R215 NM
R205
NM
R214 NM
R204
47k
R213
10k
R212
100
R211
100
R206
47k
R230
47
R222
NM
R22847R227
47
R225
47
R265
NM
R216
100
R210
100
R261
22
R217
NM
R218
NM
R262
470
R263
1M
R209
100
R264
100
R201
47
R207
4.7k
R208
100
R233
47
R219
0
R224
47
R223
47
R231
47k
R221
47k
R235
47
R234
47
R220
10k
TP201
TP202
TP203
TP208
TP207
TP204
TP205
TP206
TP261
TP262
TP263
TP264
TP256
TP255
TP254
TP253
TP252
TP265
TP251
V3D
V3D
V3D8
V3D
V3DA
V12
V3DC
V3D9
V3D
V1R2
V3D
V3D
V3DB
V3D
X261
XSS3003-A
24.576MHz
MCK1
DA
OSCU
OSC2
2 3 4

10.17 HDMI & DSP & USB ASSY (2/5)

A
B
C
D
E
F
98
VSX-918V-K
1
2 3 4
5
V 2/5
CN806
C 2/2
V
1/5
V
1/5,3/5
V
1/5
V
1/5
LSBK
LSLK
LSFD
LSSD
LSCD
LSBD
DIRCS
DSPCLK
DSPDI
DIRRST
LCKO
BCKO
FDTO
SDTO
CDTO
BDTO
LSRST
LSINT
LSSCL
LSSDA
LSFD
LSSD
LSCD
LSBD
LSBK
LSLK
LCKO
BCKO
FDTO
SDTO
CDTO
BDTO
LSLK
LSBK
LSFD
LSSD
LSCD
LSBD
SDTO
CDTO
LSSD
LSFD
FDTO
BDTO
LCKO
LSBK
BCKO
LSCD
LSBD
LSLK
CN2
XKP3081-A
RIN
1
GNDA(DAG)
2
LIN
3
GNDA(DAG)
4
FRO
5
VCOMG
6
FLO
7
RCMUT/OVF
8
SRO
9
GNDA(DAG)
10
SLO
11
GNDA(DAG)
12
GNDA(DAG)
14
CO
15
GNDA(DAG)
16
SBRO
17
GNDA(DAG)
18
SBLO
19
GNDD(USB)
20
V+5D(USB)
21
SWO
13
47u/6.3
C318
100u/16
C303
100u/16
C315
C322
1000p/50
C321
1000p/50
C272
NM
C274
NM
C276
NM
C277
0.1u/10
C275
0.1u/10
C273
0.1u/10
C271
0.1u/10
C301
0.01u/16
C302
NM
C305
100p/50
CH
C320
0.1u/10
C319
NM
C317
470p/50
C316
0.1u/10
C304
0.1u/10
C314
470p/50
C313
470p/50
C312
470p/50
C311
470p/50
C310
470p/50
C309
470p/50
C306
0.1u/10
C308
NM
C307
NM
D302
MA152WK
D301
MA152WA
L302
QTL1013-A
L301
QTL1013-A
L271
QTL1013-A
GNDD
GVCM
GDAC
GNDD
GNDD
GNDD
GNDDA
GNDD GNDD
ML87V5002
IC271
LIPSYNC IC
VSS1
1
2
3
BCKI0
4
5
DI0
6
7
BCKI1
8
DI1
9
VCC1
10
11
BCKI2
12
DI2
13
14
15
DI3
16
VSS217VCC2
18
MODE2
19
20
21
RESET
22
INT
23
SCL
24
SDA
25
VSS3
26
DO3
27
DO2
28
DO1
29
DO0
30
31
32
VCC3
AK4626AVQ
IC301
6ch CODEC
SDOS
1
I2C
2
SMUTE
3
BICK
4
LRCK
5
SDTI1
6
SDTI2
7
SDTI3
8
SDTO9DAUX
10
DFS0
11
TST112DZFE13TVDD
14
DVDD15DVSS16PDN17TST218CAD119CAD020TST321TST4
22
LOUT3
23
ROUT324LOUT2
25
ROUT2
26
LOUT1
27
ROUT1
28
TST5
29
NC
30
LIN
31
RIN
32
DZF2/OVF
33
VCOM
34
VREFH
35
AVDD
36
AVSS
37
DZF1
38
MCLK
39
P/S
40
DIF0/CSN
41
42
43
TDM0
44
R272
47
R279 100
R317
100
R271
100
R284
NM
R273 100
R278
NM
R277
0
R283
NM
R282
NM
R276
NM
R274
10k
R302
100
R303
NM
R304
0
R275
NM
R281
100
R316
47
R280
100
R306
4.7
R305
NM
R307
NM
R308
NM
R309
100
R310
100
R311
100
R312
100
R313
100
R314
100
R315
NM
R301
47
TP304
TP305
TP306
TP307
TP308
TP309
TP310
TP311
TP312
TP313
TP314
TP315
TP316
TP317
TP318
TP302
TP301
TP283
TP321
TP320
TP319
256
TP255
TP281
TP277
TP275
TP303
TP280
TP271
TP279
TP273
TP282
TP278
TP272
TP274
TP276
V3D
V3DV5D
V5DU
V3D
V5A1
V3DE V5A2
V5A
V3DD
MCK3
MCK2
DC
ADDT
SYSCLK
LRCKI0
LRCKI1
LRCKI2
LRCKI3
BCKI3 MODE1
MODE0
BCK0
LRCK0
DIF1/SCL/CCLK
LOOP0/SDA/CDTI
6 7 8
A
B
C
D
E
F
5
6 7 8
VSX-918V-K
99
1
HDMI & DSP & USB ASSY (VSX-918V:AWX9162)
V
3/5
V 3/5
CN112
A 3/3
XMRST3
USBDAI3
XMDI3
XMLNK3
XMANT3
XMDO3
XMLSDP3
XMLNK
XMLSDP
XMDO
XMMUT3
XMMUT
USBDAO
XMFS
DIRERR
DSPHRQ
DECMUT
DIRDO
DSPBSY
DSPDO
LSRST
DECMUT
DIRDO
HDDO
HDMUT
HDSCK
USBDAO
USBCTL
DSPSS
HDDI
WRTMOD
USBRST
DSPCLK
XFLAG
DSPHRQ
USBSW
USBPWR
DSPMOD
HDRQI
DIRERR
LSINT
DSPDI
HDSW
HDRST
DSPBSY
DIRCS
HDRQO
LSSDA
USBDAI
LSSCL
DSPDO
DSPRST
DIRRST
DSPHRQ3
DIRERR3
XMFS3
DSPBSY3
DIRDO3
DECMUT3
DSPDO3
WRTMOD3
XMRST
XMDI
XMANT
WRTMOD
USBDAI
USBDAO3
9604S-35C
CN3
GNDD1GNDD
2
DIR ERR
3
DIR RST
4
DEC MUTE
5
DSP DI
6
DSP DO
7
DSP CLK
8
DSP RST
9
DSP SS
10
BUSY
11
DSP HREQ
12
DSP MODE
13
DIR DO
14
DIR CS
15
USB XRST
16
USB POWER
17
USB DAI
18
USB DAO
19
USB CTL
20
XFLAG
21
WRITE MODE
22
USB SW
23
LS SDA
24
LS SCL
25
LS INT
26
LS RESET
27
HD DO
28
HD SCK
29
HD DI
30
HD REQI
31
HDMI SW
32
HD RESET
33
HD REQO
34
HD MUTEO
35
C331
NM
C332
0.1u/10 *C342
0.1u/10
C341
NM
C351
NM
C352
0.1u/10
L331
QTL1013-A
*L341
QTL1013-A
L351
QTL1013-A
GNDDGNDD
GNDD
GNDD
GNDD
*IC341
TC74VHCT08AFTS1
1A11B21Y32A
4
52B62Y7
GND
83Y93A103B114Y124A134B14
VCC
IC331
TC74VHC08FTS1
1A11B21Y32A
4
52B62Y7
GND
83Y93A103B114Y124A134B14
VCC
IC351
TC74VHCT541AFTS1
G1
1A12A23A34
5A46A57A68A79
A810GND
11Y812Y713Y614Y515Y416Y317Y218Y119G220
VCC
NM
Q341
RT1N241M-TLB
R45
100k
R353
100
214
3
658
7
R354
100
214
3
658
7
R42
100k
R48
100k
R44
100k
R46
100k
R47
100k
*R332
100
R41
NM
R352
NM
R337
NM
R336
0
R334
100
*R342
330
R333
NM
*R335
100
R43
100k
*R341
330
*R343
330
*R344
330
R345
NM
47k
*TP341
TP331
TP351
TP27
TP28
TP29
TP30
TP32
TP33
TP34
TP35
TP36
TP37
TP38
TP39
TP40
TP41
TP42
TP43
TP44
TP45
TP46
TP47
TP48
TP49
TP50
TP51
TP52
TP53
TP54
TP55
TP56
TP57
TP58
TP59
TP31
V5D2
V5D V5D
V5D3
V3DF
V3D
5V -> 3V
Level shifter
for XM,USB
3V -> 5V
Level shifter
for DSP,DIR,XM,USB
3V -> 5V
Level shifter
for XM
2 3 4

10.18 HDMI & DSP & USB ASSY (3/5)

A
B
C
D
E
F
100
VSX-918V-K
1
2 3 4
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