Pioneer VSX-919AH-K, VSX-1019AH-K Service Manual

ORDER NO.

RRV3900

VSX-1019AH-K

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-1019AH-K

VSX-919AH-K

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

Model Type Power Requirement Remarks

VSX-1019AH-K UXJCA AC 120 V
VSX-919AH-K CUXJCA AC 120 V

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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.

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.

Leakage
current
tester

Reading should
not be above

0.5 mA

Device
under
test

Test all
exposed metal
surfaces

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

Earth
ground

AC Leakage Test

(FOR USA MODEL ONLY)

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 - 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.

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

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SAFETY INFORMATION

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[Important Check Points for Good Servicing]

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

1. Product saf ety

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

1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety .
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as

radio/TV interference and foreign noise .
3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris.

Soldering should be finished with the proper quantity . (Refer to the e xample)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws .
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs.

In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8 There should be no semi-broken wires , scratches, melting, etc. on the coating of the pow er cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages .

If you find a damaged power cord, please exchange it with a suitab le one.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure

connections and suitable usage. Please exchange the po wer cord if necessary .
a Safe en vironment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to pre vent injuries.

Please pay attention to your surroundings and repair safely.

2. Adjustments

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

4. Cleaning

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

3. Lubricants, Glues , and Replacement parts

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

5. Shipping mode and Shipping scre ws

T o protect products from damages or f ailures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follo w this method especially if it is specified in this manual.

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CONTENTS

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

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

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1.1 NOTES ON SOLDERING ...............................................................................................................................................6

1.2 NOTES ON REPLACING PARTS ...................................................................................................................................6

1.3 CAUTION........................................................................................................................................................................ 6

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

2.1 SPECIFICATIONS...........................................................................................................................................................7

2.2 PANEL FACILITIES.........................................................................................................................................................8

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

3.1 CHECK POINT AFTER SERVICING............................................................................................................................13

3.2 PCB LOCATIONS .........................................................................................................................................................14

3.3 JIGS LIST......................................................................................................................................................................15

4. BLOCK DIAGRAM...............................................................................................................................................................16

4.1 OVERALL WIRING DIAGRAM......................................................................................................................................16

4.2 BLOCK DIAGRAM FOR DIGITAL AUDIO BLOCK........................................................................................................18

4.3 BLOCK DIAGRAM FOR ANALOG AUDIO BLOCK......................................................................................................20

4.4 BLOCK DIAGRAM FOR DIGITAL VIDEO BLOCK........................................................................................................21

4.5 BLOCK DIAGRAM FOR ANALOG VIDEO BLOCK ......................................................................................................22

4.6 BLOCK DIAGRAM FOR U-COM BLOCK .....................................................................................................................24

4.7 BLOCK DIAGRAM FOR POWER BLOCK....................................................................................................................26

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

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

5.2 CIRCUIT DESCRIPTION..............................................................................................................................................43

6. SERVICE MODE.................................................................................................................................................................47

6.1 TEST MODE.................................................................................................................................................................47

7. DISASSEMBLY....................................................................................................................................................................49

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

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

9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................58

9.1 PACKING SECTION......................................................................................................................................................58

9.2 EXTERIOR SECTION...................................................................................................................................................60

9.3 REAR SECTION...........................................................................................................................................................62

9.4 FRONT SECTION.........................................................................................................................................................64

10. SCHEMATIC DIAGRAM ....................................................................................................................................................66

10.1 AUDIO ASSY ..............................................................................................................................................................66

10.2 V6 COMPOSITE ASSY...............................................................................................................................................68

10.3 COMPONENT ASSY (1/2)..........................................................................................................................................70

10.4 COMPONENT ASSY (2/2)..........................................................................................................................................72

10.5 DIGITAL MAIN ASSY (1/11) GUIDE PAGE.................................................................................................................74

10.6 DIGITAL MAIN ASSY (2/11)................... ..... ...... ..... ............................................. ...... ...... ..... . ......................................80

10.7 DIGITAL MAIN ASSY (3/11)................... ..... ...... ..... ............................................. ...... ...... ..... . ......................................82

10.8 DIGITAL MAIN ASSY (4/11)................... ..... ...... ..... ............................................. ...... ...... ..... . ......................................84

10.9 DIGITAL MAIN ASSY (5/11)................... ..... ...... ..... ............................................. ...... ...... ..... . ......................................86

10.10 DIGITAL MAIN ASSY (6/11)......................................................................................................................................88

10.11 DIGITAL MAIN ASSY (7/11)......................................................................................................................................90

10.12 DIGITAL MAIN ASSY (8/11)......................................................................................................................................92

10.13 DIGITAL MAIN ASSY (9/11)......................................................................................................................................94

10.14 DIGITAL MAIN ASSY (10/11)....................................................................................................................................96

10.15 DIGITAL MAIN ASSY (11/11)....................................................................................................................................98

10.16 POWER PACK ASSY (1/2).....................................................................................................................................100

10.17 POWER PACK (2/2), IR/SR, BRIDGE 1 AND BRIDGE 2 ASSYS.....................................................................

.18 BIND 1, BIND 2, BIND 3, BIND 4 AND BIND 5 ASSYS..........................................................................................104

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10.19 V6 FRONT INPUT, V6 JOG, V6 POWER SW AND V6 H.P ASSYS.......................................................................106

10.20 V6 DISPLAY ASSY .................................................................................................................................................108

10.21 REGULATOR, V6 PRIMARY AND V6 TRANS 1 ASSYS........................................................................................110

10.22 TRANS 2 AND TRANS 3 ASSYS...........................................................................................................................112

11. PCB CONNECTION DIAGRAM ......................................................................................................................................114

11.1 AUDIO ASSY ............................................................................................................................................................114

11.2 V6 COMPOSITE AND COMPONENT ASSYS.........................................................................................................118

11.3 DIGITAL MAIN ASSY.................................. ............................................. ...... ..... ...... ...... ... .......................................122

11.4 POWER PACK ASSY................................................................................................................................................ 126

11.5 IR/SR, BRIDGE 1 AND BRIDGE 2 ASSYS..............................................................................................................130

11.6 BIND 1, BIND 2, BIND 3, BIND 4 AND BIND 5 ASSYS............................................................................................132

11.7 V6 FRONT INPUT, V6 JOG, V6 POWER SW AND V6 H.P ASSYS.........................................................................134

11.8 V6 DISPLAY ASSY ...................................................................................................................................................138

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11.9 REGULATOR, V6 PRIMARY, V6 TRANS 1, TRANS 2 AND TRANS 3 ASSYS................................. ......................142

12. PCB PARTS LIST............................................................................................................................................................146

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• 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 ºC.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC 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.

The part listed below is difficult to replace as a discrete component part.
When the part listed in the table is defective, replace whole Assy.

IC800 EMMA2RL2 UPD61283F1-407LU2A BGA

IC1501 HDMI Receiver SII9233ACTU IC with heat-pad

DIGITAL MAIN

ASSY

ASSY NAME

Ref No. Part No. RemarksFUNCTION

PCB ASSY Part No.

Parts that is Diffcult to Replace

1019AH : AWX9427

919AH : AWX9426

• Discharging

Please refer to page 49, “Preparations Before Perfoming Diagnosis of the POWER PACK Assy”.

• Ground Points

Please refer to page 50, “Ground Points”.

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1. SERVICE PRECA UTIONS

1.1 NOTES ON SOLDERING

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1.2 NOTES ON REPLACING PARTS

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1.3 CA UTION

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2. SPECIFICATIONS

2.1 SPECIFICATIONS

Amplifier section
Continuous average power output of 90 watts* per
channel, min., at 8 ohms, from 20 Hz to 20 000 Hz with
no more than 0.2 %** total harmonic distortion.

Front (stereo) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 W + 90 W

Power output (1 kHz, 6 Ω, 0.05 %, 1 ch driven)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 W per channel

Guaranteed speaker impedance

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Ω to 8 Ω,

less than 8 Ω to 6 Ω (setting required)

* Measured pursuant to the Federal Trade Commission’s
Trade Regulation rule on Power Output Claims for
Amplifiers
** Measured by Audio Spectrum Analyzer

Furnished Parts Number

MCACC Setup microphone (APM7008) . . . . . . . . . . . . . . . . 1

Remote control unit (AXD7551(VSX-1019AH))/

Remote control unit (AXD7552(VSX-919AH)) . . . . . . . . . . 1

AA/IEC R6 dry cell batteries . . . . . . . . . . . . . . . . . . . . . . . . . . 2

iPod cable (ADE7129) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

AM loop antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

FM wire antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Operating instructions

Note

• Specifications and the design are subject to possible
modifications without notice,due to improvements.

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Audio Section

Input (Sensitivity/Impedance)

LINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 mV/47 kΩ

Output (Level/Impedance)

REC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 mV/2.2 kΩ

Signal-to-Noise Ratio
(IHF, short circuited, A network)

LINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 dB

Signal-to-Noise Ratio [EIA, at 1 W (1 kHz)]

LINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 dB

Tuner Section

Frequency Range (FM) . . . . . . . . . . . . 87.5 MHz to 108 MHz

Antenna Input (FM) . . . . . . . . . . . . . . . . . . . 75 Ω unbalanced

Frequency Range (AM) . . . . . . . . . . . . 530 kHz to 1700 kHz

Antenna (AM) . . . . . . . . . . . . . . . . . .Loop antenna (balanced)

Video Section

Signal level

Composite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Vp-p (75 Ω)

Component Video . . . . . . . . . . . . . . . . . . . .Y: 1.0 Vp-p (75 Ω),

PB, PR: 0.7 Vp-p (75 Ω)
Corresponding maximum resolution

Component Video . . . . . . . . . . . . . . . . . . . . . . . 1080p (1125p)

(Video convert off)

Digital In/Out Section

HDMI terminal . . . . . . . . . . . . . . . . . . . . . . . . . 19-pin (Not DVI)

HDMI output type . . . . . . . . . . . . . . . . . . . . . . . . . .5 V, 100 mA

USB terminal.

. . . . . . . . . . . . . . . USB2.0 Full Speed (Type A)

iPod terminal . . . . . . . . . . . . . . . USB, and Video (Composite)

SIRIUS antenna cable . . . . . . . . . . . . . . 8-pin mini DIN cable

Manufactured under license from Dolby Laboratories.
Dolby, Pro Logic, Surround EX and the double-D symbol
are trademarks of Dolby Laboratories.

Manufactured under license under U.S. Patent
#’s: 5,451,942; 5,956,674; 5,974,380; 5,978,762;
6,226,616; 6,487,535; 7,212,872; 7,333,929;
7,392,195; 7,272,567 & other U.S. and worldwide
patents issued & pending. DTS is a registered
trademark and the DTS logos, Symbol, DTS-HD
and DTS-HD Master Audio are trademarks of
DTS, Inc. © 1996-2008 DTS, Inc. All Rights
Reserved.

Windows Media and the Windows logo are trademarks or
registered trademarks of Microsoft Corporation in the United
States and/or other countries.

iPod is a trademark of Apple Inc., registered in the U.S. and
other countries. iPhone is a trademark of Apple Inc.

SIRIUS, XM and all related marks and logos are
trademarks of Sirius XM Radio Inc. and its
subsidiaries. All rights reserved. Service not
available in Alaska and Hawaii.

“Neural Surround”, “Neural Audio”, “Neural” and “NRL” are
trademarks and logos owned by Neural Audio Corporation,
THX is a trademark of THX Ltd., which may be registered in
some jurisdictions. All rights reserved.

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D

Integrated control section

Control (SR) terminal . . . . . . . . . . . Ø 3.5 Mini-jack (MONO)

Control (IR) terminal . . . . . . . . . . . . Ø 3.5 Mini-jack (MONO)

IR signal. . . . . . . . . . . . . . . . . .High Active (High Level: 2.0 V)

Miscellaneous

Power requirements. . . . . . . . . . . . . . . . . . . . AC 120 V, 60 Hz

Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350 W

In standby . . . . . . . . . . . . . . . . . . . . 0.5 W (KURO LINK OFF)

0.8 W (KURO LINK ON)
Dimensions

. . . . . . . . . . . . . . . .420 mm (W) x 158 mm (H) x 349 mm (D)

(16 9/16 in. (W) x 6 1/4 in. (H) x 13 3/4 in. (D))

Weight (without package) . . . . . . . . . . . . . .8.7 kg (19 lb 3 oz)

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1 INPUT SELECTOR dial

Use to select an input function.
2  STANDBY/ON

Switches the receiver between on and standby.
Power indicator lights when the receiver is on.
When the KURO LINK function is set to ON,
the power indicator lights dimly when the power is
in standby.

3 T uner controls

BAND – Switches between AM and FM radio bands.

TUNE +/– – Use to find radio frequencies.
PRESET +/– – Use to find preset stations.
TUNER EDIT – Use with TUNE +/–, PRESET
+/– and ENTER to memorize and name stations for recall.

4 PHASE CONTROL indicator – Lights to indicate Phase

Control is selected.
ADVANCED MCACC indicator – Lights when EQ is set

to ON in the AUDIO PARAMETER menu.
HDMI indicator – Blinks when connecting

an HDMI-equipped component; lights when
the component is connected.

5 Character display

6 ENTER

7 Remote sensor

Receives the signals from the remote control.

8 MASTER VOLUME dial

9 PHONES jack

Use to connect headphones. When the headphones are
connected, there is no sound output from the speakers.

10 Listening mode buttons
AUTO SURR/ALC/STREAM DIRECT –

Switches between Auto Surround,
Auto level control mode and Stream Direct
mode.

STEREO – Switches between stereo
playback, and Front Stage Surround
Advance modes.

ADVANCED SURROUND – Use to switch
between the various surround modes.

STANDARD SURROUND – Press for
Standard decoding and to switch between
the various ∂ Pro Logic IIx and Neo:6 options.

11 SPEAKERS

Use to change the speaker system.

12 MULTI-ZONE controls

If you’ve made MULTI-ZONE connections use these
controls to control the sub zone from the main zone.

13 iPod/iPhone/USB, VIDEO INPUT terminals

Use to connect your Apple iPod as an audio
and video source, or connect a USB device for
audio and photo playback.

14 MCACC SETUP MIC jack

Use to connect the supplied microphone.

[1] Front panel

2.2 PANEL FACILITIES

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1 SIGNAL indicators

Light to indicate the currently selected input signal.
AUTO lights when the receiver is set to select the input
signal automatically.

2 Program format indicators

Light to indicate the channels being input when PCM
signals are being input. They do not indicate the audio
signals being output from the receiver.

L/R – Left front/Right front channel
C – Center channel
SL/SR – Left surround/Right surround channel
LFE – Low frequency effects channel (the (( ))

indicators light when an LFE signal is being input)

XL/XR – Two channels other than the ones above
XC – Either one channel other than the ones above,

the mono surround channel or matrix encode flag

3 Digital format indicators

Light when a signal encoded in the corresponding
format is detected.

4 S.RTRV

Lights when the Sound Retriever function is active.

5 MULTI-ZONE

Lights when the MULTI-ZONE feature is active.
6 DSD PCM – Light during DSD (Direct Stream Digital)

to PCM conversion with SACDs.

PCM – Lights during playback of PCM signals.

7 SOUND

Lights when any of the Midnight, Loudness or
tone controls feature is selected.

Lights when Dialog Enhancement is switched on.

8 PQLS

Lights when the PQLS feature is active.

9 UP MIX

Lights when the UP Mix is switched on.

10 Listening mode indicators
AUTO SURROUND – Lights when the Auto

Surround feature is switched on.
ALC – Lights when the ALC (Auto level

control) mode is selected.
STREAM DIRECT – Lights when Direct/

Pure Direct is selected.
ADV.SURROUND – Lights when one of the

Advanced Surround modes has been selected.

STEREO – Lights when stereo listening is switched on.
STANDARD – Lights when one of the Standard

Surround modes is switched on.

11 (PHASE CONTROL)

Lights when the Phase Control is switched on.

12 Analog signal indicators

Light to indicate reducing the level of an analog signal.

13 T uner indicators

TUNED – Lights when a broadcast is being received.
STEREO – Lights when a stereo FM broadcast is

being received in auto stereo mode.

MONO – Lights when the mono mode is set using MPX.

14

Lights when the sound is muted.

15 Master volume level

Shows the overall volume level.
“---” indicates the minimum level, and “+12dB”
indicates the maximum level.

16 Input function indicators

Light to indicate the input function you have selected.

17 Scroll indicators

Light when there are more selectable items
when making the various settings.

18 Matrix decoding format indicators

∂ PRO LOGIC IIx – This lights to indicate
∂ Pro Logic II / ∂ Pro Logic IIx decoding.
Neo:6 – When one of the Neo:6 modes of the
receiv

er is on, this lights to indicate

Neo:6 processing.

19 Speaker indicators
Lights to indicate the current speaker system, A and/or B.

20 SLEEP

Lights when the receiver is in sleep mode.

21 MSTR

Lights during playback of DTS-HD Master Audio signal.

22 Character display

Displays various system information.

23 Remote control mode indicator

Lights to indicate the receiver’s remote control
mode setting. (Not displayed when set to 1.)

[2] Display

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The remote has been conveniently color-coded according to
component control using the following system:

• White – Receiver control, TV Control

• Blue – Other controls
1  RECEIVER

This switches between standby and on for this receiver.

2 Input function buttons

Press to select control of other components.

3 Number buttons and other receiver/
component controls

Use the number buttons to directly select a radio frequency
or the tracks on a CD, DVD, etc.

ENTER can be used to enter commands for TV or DTV.
Press RECEIVER first to access:

INPUT SELECT – Use to select the input function.
SIGNAL SEL – Use to select an input signal.
MCACC – Press to switch between MCACC presets.
SLEEP – Use to put the receiver in sleep mode and

select the amount of time before sleep.
SBch – Use to select the surround back/virtual

surround back channel mode.
A.ATT – Attenuates (lowers) the level of an

analog input signal to prevent distortion.

DIMMER – Dims or brightens the display.
CH LEVEL – Press repeatedly to select a

channel, then use / to adjust the level.
Press TUNER first to access:
D.ACCESS – After pressing, you can

access a radio station directly using the
number buttons.

CLASS – Switches between the seven
banks (classes) of radio station presets.

4 TV CONTROL buttons

These buttons are dedicated to control the TV
assigned to TV operation selector switch. Thus
if you only have one TV to hook up to this
system assign it to the TV operation selector
switch.

 Use to turn on/off the power of the TV.

INPUT – Use to select the TV input signal.
CH +/– – Use to select channels.
VOL +/– – Use to adjust the volume on your TV.

5 Tuner/component control buttons/HOME MENU

These button controls can be accessed after
you have selected the corresponding input
function button (DVD, DVR, TV

, etc.).
Press RECEIVER first to access:
A

UDIO P

ARAMETER – Use to access the

Audio options.
VIDEO P ARAMETER – Use to access the

Video options.
HOME MENU – Use to access the Home

Menu.
RETURN – Press to confirm and exit the

current menu screen (also use to return to
the previous menu with DVDs or to select
closed captioning with DTV).

6 /// (TUNE/PRESET) /ENTER

Use the arrow buttons when setting up your
surround sound system and the Audio or Video options.
Also used to control DVD menus/options and for
deck 1 of a double cassette deck player. Use

TUNE / to find radio frequencies and use
PRESET / to find preset stations.

[4] Remote control

6 7 8

A

5

VSX-1019AH-K

6 7 8

B

C

D

E

F

11

1

7 Receiver controls

Press RECEIVER first to access:
AUTO/ALC/DIRECT – Switches between

Auto Surround, Auto level control
mode and Stream Direct mode.

STEREO – Switches between stereo
playback, and Front Stage Surround
Advance modes.

STANDARD – Press for Standard decoding
and to switch between the various ∂ Pro
Logic IIx and Neo:6 options.

ADV SURR – Use to switch between the
various surround modes.

8 Component control buttons

The main buttons ( ,  , etc.) are used to
control a component after you have selected it
using the input function buttons.

The controls above these buttons can be
accessed after you have selected the
corresponding input function button (for
example DVD, DVR or TV). These buttons also
function as described below.

Press TV first to access:
ANT – Use to select the VHF/UHF antennas

or Cable TV.
Press TUNER first to access:
MPX – Switches between stereo and mono

reception of FM broadcasts. If the signal is
weak, then switching to mono will improve
the sound quality.

Press RECEIVER first to access:
PHASE CTRL – Press to switch on/off

Phase Control.
STATUS – Press to check selected receiver

settings and Audio input signal format.
9 AUDIO – Changes the audio or channel on

DVD discs.
DISPLAY – Switches between named

station presets and radio frequencies.
CH +/– – Use to select channels for DVD/

DVR units.
10 REMOTE SETUP – Use to input the preset

code when making remote control settings
and to set the remote control mode.

TV CTRL – Use this button to set preset
code of your TV’s manufacturer when
controlling TV.

11 MUL

TI-ZONE operation selector s

witch

Switch to perform operations in the main zone
and sub zone.

12 Remote control LED

Lights when a command is sent from the
remote control.

13  SOURCE

Press to turn on/off other components
connected to the receiver.

14 MASTER VOLUME +/–

Use to set the listening volume.

15 MUTE

Mutes the sound or restores the sound if it has
been muted (adjusting the volume also
restores the sound).

16 RECEIVER

Switches the remote to control the receiver
(used to select the white commands above the
number buttons (A.ATT, etc.)). Also use this
button to set up surround sound.

A

2 3 4

B

C

D

E

F

12

1

VSX-1019AH-K

2 3 4

5

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

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

No. Procedures Check points

1

2

3

4

5

6

7

8

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.

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

Each channel audio and operations must be normal.

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

Each channel audio and operations must be normal.

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

Each channel audio and operations must be normal.

Check the tuner (AM and FM) operations. Audio and operations must be normal.

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

Video and operations must be normal.

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

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

service.

Items to be checked after servicing

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

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

Cleaning

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

NamePosition to be cleaned Part No. Remarks

Refer to “9.2 EXTERIOR SECTION”.Cleaning paperFans GED-008

6 7 8

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINT AFTER SERVICING

A

B

C

D

VSX-1019AH-K

5

6 7 8

E

F

13

1

A

AUDIO ASSY

D

DIGITAL MAIN ASSYFM/AM TUNER UNIT

E

POWER PACK ASSY

H

BRIDGE 1 ASSY

J

BIND 2 ASSY

N

V6 FRONT INPUT
ASSY

R

V6 DISPLAY
ASSY

K

BIND 3 ASSY

L

BIND 4 ASSY

F

IR/SR
ASSY

C

COMPONENT

ASSY

B

V6 COMPOSITE

ASSY

S

REGULATOR ASSY

G

BRIDGE 2 ASSY

O

V6 JOG ASSY

T

V6 PRIMARY

ASSY

V

TRANS 2 ASSY

W

TRANS 3 ASSY

U

V6 TRANS 1 ASSY

Q

V6 H.P ASSY

P

V6 POWER SW

ASSY

I

BIND 1 ASSY

M

BIND 5 ASSY

3.2 PCB LOCATIONS

A

2 3 4

B

C

D

E

F

14

1

VSX-1019AH-K

2 3 4

5

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

-

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

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

Mark Symbol and Description

VSX-1019AH-K

/UXJCA

VSX-919AH-K

/CUXJCA

NSP 1..AMP ASSY AWK8073 AWK8073

2..POWER PACK ASSY AWX9337 AWX9337

2..IR/SR ASSY AWX9342 AWX9342

2..TRANS 2 ASSY AWX9343 AWX9343

2..TRANS 3 ASSY AWX9344 AWX9344

2..BRIDGE 1 ASSY AWX9348 AWX9348

2..BRIDGE 2 ASSY AWX9349 AWX9349

2..BIND 2 ASSY AWX9413 AWX9413

NSP 1..COMPONENT_BIND ASSY AWK8077 AWK8077

2..COMPONENT ASSY AWX9350 AWX9350

2..BIND 1 ASSY AWX9412 AWX9412

2..BIND 5 ASSY AWX9515 AWX9515

NSP 1..AUDIO ASSY AWK8079 AWK8079

2..REGULA

T

OR ASSY AWX9341 AWX9341

2..AUDIO ASSY AWX9352 AWX9352

2..BIND 3 ASSY AWX9424 AWX9424

2..BIND 4 ASSY AWX9428 AWX9428

1..DIGITAL MAIN ASSY AWX9427 AWX9426

NSP 1..COMPLEX ASSY XWK3375 XWK3376

2..V6 DISPLAY ASSY XWZ4374 XWZ4375

2..V6 POWER SW ASSY XWZ4383XWZ4383

2..V6 JOG ASSY XWZ4384XWZ4384

2..V6 FRONT INPUT ASSY XWZ4385XWZ4385

2..V6 COMPOSITE ASSY XWZ4386XWZ4393

2..V6 PRIMAR

Y ASSY X

WZ4387XWZ4387

2..V6 H.P ASSY XWZ4391 XWZ4391

2..V6 TRANS 1 ASSY XWZ4392 XWZ4392

1..FM/AM TUNER UNIT AXX7250 AXX7250

LIST OF ASSEMBLIES

Name Jig No. Remarks

19P board to board extension jig

cable GGD1577

Diagnosis

[1] Jigs list

6 7 8

A

B

3.3 JIGS LIST

C

D

E

5

6 7 8

VSX-1019AH-K

F

15

1

FU1

REK1154­(10A/125V)

MODEL

VSX-1019AH-
VSX-919AH-

/UXJCA
/CUXJCA

MODEL

*2

AC CORD

MAIN TRANS

*1

XTS3117- ADG7024-

/UXJCA
/CUXJCAVSX-919AH-

VSX-1019AH-

*1.00mm

30043006

CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE WITH SAME TYPE AND RATINGS OF FUSE.

*4

!

!

(*;1.00mm FFC CONNECTOR)

2.0mm FLAT CABLE

1.25mm FFC CONNECTOR(I)

1.25mm FFC CONNECTOR(L)

ANOTHER CONNECTOR

PH SHIELD

BOARD IN

(*;1.00mm FFC)

1.25mm FFC

(*;1.00mm FFC CONNECTOR)

2.0mm CABLE HOLDER

JH5302

JH5304

XDD3300-

11/90

11

TUNER
MODULE

*1.00mm

3001

*2mm

D20PYY0305E

3/50

*2mm

D20PYY0405E

4/50

3005

D20PYY0425E

4/250

10

JP4002

JH5301JH5303

CN3401

CN3501

CN3003

*2mm

JP4001

6

JP4003 JP4004

44

6

CN7611

6/50

PF06PG-R05

CN7614 CN7612

23 15

1523

44

CN7615 CN7613

19

23

19

23

CN7601

13
13

CN7602

13
13

31/240

XDD3301-

J3601

5

XDX3083-

2/320 3/320

5

2

3

J3651

CN3652

XDD3299-

5/215

5

5

CN8007

19

19

CN8501

19

CN8006

19

CN8005

19

CN8003CN8001

1818

18 19 18

CN8012 CN8015

19 19

19 19

CN4801

CN5004

9
9

CN5001CN5002 CN2103

CN2104 CN2105

CN2201 CN2106 CN2102

*CN2003

CN1254 CN1252 CN1250

CN1259

CN482CN1405 CN501CN1400 CN1903

CN1900

UNREG

4/55

XDX3090-

4/55

XDX3091-

CN8016

*1.00mm

XDX3084-

5/500

*EH *PH

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

DIGITAL MAIN ASSY
(VSX-1019AH : AWX9427)
(VSX-919AH : AWX9426)

BRIDGE 1 ASSY
(AWX9348)

H

D

POWER PACK ASSY
(AWX9337)

E

AUDIO ASSY
(AWX9352)

A

BIND 2 ASSY
(AWX9413)

J

BIND 5 ASSY
(AWX9515)

M

BIND 1 ASSY
(AWX9412)

I

V6 FRONT INPUT ASSY
(XWZ4385)

N

COMPONENT ASSY

(AWX9350)

C

V6 DISPLAY ASSY

(VSX-1019AH : XWZ4374)

(VSX-919AH : XWZ4375)

R

V6 COMPOSITE ASSY
(VSX-1019AH : XWZ4386)
(VSX-919AH : XWZ4393)

B

IR/SR ASSY
(AWX9342)

(AXX7250)

F

BRIDGE 2 ASSY
(AWX9349)

G

V6 POWER
SW ASSY
(XWZ4383)

P

V6 JOG ASSY
(XWZ4384)

O

REGULATOR ASSY
(AWX9341)

S

2 3 4

4. BLOCK DIA G RAM

4.1 OVERALL WIRING DIAGRAM

A

B

C

D

E

F

16

1

VSX-1019AH-K

2 3 4

5

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

When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
The > mark found on some component parts indicates the importance of the safety factor of the part.

: The power supply is shown with the marked box.

MAIN TRANS

T1501

*1

!

JH4701

CN4903

CN4901

3

10

SUB
TRANS

*4

!

FU1

*2

CN51

!

AC CORD

XXM3012-

FAN

CN7732CN7742

CN7741 CN7731

3451

CN55

!

DB614NB0 1/140

1/140DB114NB0

BLUE

BROWN

D20PYY0215E

2/150

DB016NB0 1/160 BLACK
DB216NB0 RED1/160

DB916NB0 WHITE1/160

XDX3088-

10/540

CN4902

6/250

D20PYY0625E

D20PYY0620E

6/200

D20PYY0630E

6/300

D20PYY0320E

3/200

D20PYY0320E

3/200

*2mm

*2mm *2mm

*2mm

*2mm

*2mm

FLAC+B

REGA DREGFAN

PRIMARY

!

V6 PRIMARY ASSY
(XWZ4387)

T

BIND 4 ASSY
(AWX9428)

L

BIND 3 ASSY
(AWX9424)

K

V6 H.P ASSY
(XWZ4391)

Q

V6 TRANS
1 ASSY
(XWZ4392)

U

TRANS 2 ASSY
(AWX9343)

V

TRANS 3 ASSY
(AWX9344)

W

6 7 8

A

B

C

D

E

F

VSX-1019AH-K

5

6 7 8

17

1

Block Diagram (Digital Audio part)

I2S MCLK
I2S BCLK, LRCLK
I2S DATA (uncompressed)
I2S DATA (compressed(Include dts HD High Resolution Audio, dts HD LBR, Dolby Digital Plus) or 2ch(under 48 kHz for HDMI))
I2S or DSD DATA (Signal from HDMI (dts HD Master Audio) (Dolby TrueHD) (SACD) (LPCM Multi)(for over 88.2 kHz of PCM or LPCM))
S/PDIF, Operation Clock,etc
Analog Audio Signal Buffer IC1251 7PAU04
Control/Memory Bus Line

X'tal for USB
X1250

Analog in(L/R)

48.0MHz
ASS7099-

USB/iPod
Audio

R202, R204, R206, R208

Coaxial in(1 or

2)

Buffer
IC215

7SH08

USB/iPod
Audio

Zone2 R466, R468R466, R468

R462, R464,R462, R464,

Analog
out(L/R)

SW

IC363

7WH126(1/2)

SW

IC363

7WH126(2/2)

IC301

Channel Assigment Difference
Pin No. SACD Signal

OTHER Signal

85 Data(C)

N/A

86 Data(LFE)

N/A

97 Data(FL)

Data(FL,FR)

98 Data(FR)

Data(SL,SR)

99 Data(SL)

Data(C,LFE)

Data(SR)

Data(SBL,SBR)

Sirius Analog in(L/R)

Control IN/OUT

Control IN/OUT

HDMI S/PDIF in(1)

100

GATE ARRAY

IC1300

PE7008A

MAIN LSI

IC800

EMMA

UPD61283F1-407LU2A

From HDMI Block

DIR/DIT

IC101

AK4114

HDMI

AUDIO SW

IC1566

VHC541

SW

IC221

74VHC157

SW

IC231

74VHC157

ADC

IC501

AK5358AET

DACDAC

IC521IC521

Except
VSX-919AH

AK4388ETAK4388ET

SW

IC241

74VHC125

Buffer

IC1563

7WH157

M24

E18
C19, D20
E21

141,142

140

JA101

JA102

JA103
JA105

CN501

(*1) VSX-1019AH
(*2) VSX-919AH

(*1)

(*1)

(*2)

(*2)

#3, #1

CN501

#23, #21

JA481
#8, #5

1, 144
2

N1

Optical in(2)

2 3 4

4.2 BLOCK DIAGRAM FOR DIGITAL AUDIO BLOCK

A

B

C

D

E

F

18

VSX-1019AH-K

1

2 3 4

5

Buffer
IC1081 X'tal
7SH08 X362

24.576MHz

ASS7072-

X'tal

X361

22.5792MHz

ASS7071-

(Front L/R only)

SW

IC363

Analog out(7.1ch)

7WH126(1/2)

R452

SW Buffer

IC363 IC364

7

WH126(2/2) 7SZ08

,LFE)

Sirius Analog out(L/R)

IC800

DSP

IC301

DSPA56720AG

To HDMI Block

(Basic Audio)

Clock Buffer

IC361

74VHC04

SW

IC9002

74VHC157

2ch DAC

IC602,652,

702,752

WM8728×4

DAC Buffer

IC452IC452

74LCX54174LCX541

M24

HCKT
SCKR, FSR
SDI0_1

SDI1_1 to SDI3_1,
SDI0

to SDI1

HCKT_3

SCKT_3, FST_3, SCKT, FST

SDO2_2 to SDO5_2

EXTAL

CN501
#5,7,9,11,13,15,17,19

CN482
#6, #4

Flash ROM

IC261

AYW7302

SDRAM

IC251

64Mbit

(4bank*1M*16bit)

6 7 8

A

B

C

D

5

VSX-1019AH-K

6 7 8

E

F

19

1

AV Front

MIC

AUDIO1

AUDIO2

AV 1

AV 2

AV 3

TUNER Module

AUDIO3

MULTI IN L/R

MULTI IN SL/SR

MULTI IN C/SW

AUDIO REC

AV REC

ZONE2 OUT

Selector / Volume / PRE Amp

IC2501 BD3473KS2

ZONE2 E-VOL

IC2503

M61545FP

SIRIUS

SP L/R

SP C

SP SL/SR

SP SBL/SBR

HP

SW PRE Amp

IC2821

NJM4565MD

<<POWER AMP>>

PREOUT SW

Audio Block Diagram

DIGITAL AUDIO BLOCK

A

D

2 3 4

4.3 BLOCK DIAGRAM FOR ANALOG AUDIO BLOCK

A

B

C

D

E

F

20

VSX-1019AH-K

1

2 3 4

5

Digital Main Assy Block Diagram (Digital Video Parts)

TMDS

Video BUS

Analog Video

JA1601

JA1602

JA1603

JA1604

HDMI IN

BD

HDMI1

HDMI2

HDMI3

BD

HDMI1

HDMI2

-

VSX-1019AH

VSX-919AH

HDMI

EQ SW

CXB1444R

IC1601

HDMI

Rx

SiI9233ACTU

IC1501

VSX-1019AH Only

Video Decoder

IC1701

System CPU/

IP Converter/

Video Encoder/

GUI

"EMMA2RL"

IC800

ADV7181CBSTZ

Video Scaler

IC1800

ABT1015

HDMI

Tx

SiI9134CTU

IC9000

HDMI OUT

µPD61283F1-407LU2A

CVBS

Component

CN1254 CN1252

Component

SY

SC

CN1259

USB

VSX-1019AH Only

JA9000

D

6 7 8

4.4 BLOCK DIAGRAM FOR DIGITAL VIDEO BLOCK

A

B

C

D

E

5

6 7 8

VSX-1019AH-K

F

21

1

COMPONENT
ASSY

C

V6

B

2 3 4

4.5 BLOCK DIAGRAM FOR ANALOG VIDEO BLOCK

A

B

C

D

E

F

22

1

2 3 4

VSX-1019AH-K

5

TC4094BFN

(VSX-1019AH only)

V6 COMPOSITE ASSY

B

6 7 8

A

B

C

D

E

F

VSX-1019AH-K

5

6 7 8

23

1

Hard Serial
Soft Serial
Control Port Common

SIRIUS

CEC

The User Memory data is stored in IC1050(AYW7287) of EMMA Flash ROM and IC3004(PDC188A8) of Event ucom.
The setting of the protection history and zone is stored in EVENT ucom and other setting data of user data is stored in
EMMA Flash ROM.

IC1501

HDMI

Rx

IC9000

HDMI

Tx

IC1800

Scaler

IC1701

V,DEC

IC3001

FL Driver

u-com

IC3004

EVENT·CEC

u-com

IC602,IC652
IC702,IC752

DAC

IC501

ADC

IC101

DIR

IC2501

E-Vol

IC2503

zone

E-Vol

IC521

zone

DAC

TUNER

IC800

MAIN LSI

EMMA

IC1300

Expand Gate

Array

IC301

1st

DSP

IC1000
IC1001

DDR

SDRAM

IC1050

Flash ROM

A

A

D

D

D

D

D

D

D

D

R

R

D

D

D

D

D

VSX-1019AH

only

VSX-1019AH

only

2 3 4

4.6 BLOCK DIAGRAM FOR U-COM BLOCK

A

B

C

D

E

F

24

VSX-1019AH-K

1

2 3 4

5

6 7 8

A

B

C

D

E

F

VSX-1019AH-K

5

6 7 8

25

1

JA103,JA105

GP1FAV51RKBF

IC101

AK4114VQ

IC251

K4S641632N-LC60

(Sub:HY57V641620FTP-6)

IC261

AYW7302

IC301

DSPA56720AG

IC800

UPD61283F1-407LU2A

IC1000,IC1001

K4H561638J-LCB3

IC1050

AYW7303

IC1501

SiI9233ACTU

IC9000

SiI9135CTU

IC1701

ADV7181CBSTZ

IC1800

ABT1015

IC1601

CXB1444R

IC1300

PE7008A

IC501

AK5358AET

IC602,IC652,IC702,IC752

WM8728SEDS

IC521

AK4388ET

OPT IO

DIR

SDRAM

for DSP

Flash ROM

for DSP

DSP

EMMA2RL

DDR SDRAM×2

for EMMA2RL

Flash ROM

for EMMA2RL

HDMI Rx

HDMI Tx

Video Scaler

HDMI Switch

Gate Array

LPF for

Analog Video I/O

Audio DAC

(Main)

CN1900

5V

DC-DC

IC1900

TPS54350PWP

V+13_UN

V+5_DDD

3.3V

LDO

IC581

NJM2885DL1-33

1.0V

LDO

IC582

RP131H101D

3.3V

LDO

3.3V

LDO

IC1100

S-1170B33UC-OTS

IC1101

S-1170B33UC-OTS

V+3R3_EM_V

V+3R3_EM_D

1.8V

DC-DC

1.05V

LDO

V+1_EM

IC1104

MM1701WH

V+1R8_HHH

2.5V

LDO

IC1102

S-1170B25UC-OTK

V+2R5_EM

V+3R3_D

V+1_DSPF

R1916

10

V+5_HD

3.3V

DC-DC

1.2V

LDO

V+3R3_HHH

IC1592

R1172H121B

V+1R2_HD

2.5V

LDO

V+2R5_GA

CN1903

CN1254

V+5R6_V

V+5_AD

2ch DC-DC

Controler

IC1930

LTC3850EGN

Load Switch

Load Switch

IC1250 AAT4614AIGU-2

IC9001 AAT4614AIGU-2

IC1303 S-1132B25-U5

V+5_USB

CN1259

JA9000

for USB VBUS Supply

for HDMI OUT +5V Supply

CN1250

CN1405

V+5R6_U

V+5R6_ST

V+5_EMST

(for Mute Circuit

in Digital Main Assy)

CN1400

Video Decoder

VSX-1019AH Only

from REGULATOR ASSY

from / to COMPONENT ASSYto BRIDGE 1

ASSY

to DISPLAY

ASSY

to FRONT IN ASSY

HDMI OUT

Audio

AD Converter

Audio DAC

(Zone 2)

A

A

V+3R3_D

VSX-1019AH Only

Power Supply Diagram

T1501

POWER TRANS

IC4911

KIA7805API

+5V

Q4931

2SD1858X(QR)

+12V

COOLING FAN

RECTIFIER

D4911,C4916

RECTIFIER

D4901

C4901, C4902

(+18V_UN)

(-19V_UN)

(+13V _UN)

!

TRANS 3 ASSY

W

DIGITAL MAIN ASSY

D

2 3 4

4.7 BLOCK DIAGRAM FOR POWER BLOCK

A

B

C

D

E

F

26

1

2 3 4

VSX-1019AH-K

5

AK4388ET

LPF for

Analog Video I/O

CN1254

V+5R6_V

CN1250

CN1405

V+5R6_ST

CN1400

from / to COMPONENT ASSYto BRIDGE 1

ASSY

to DISPLAY

ASSY

(Zone 2)

VSX-1019AH Only

V+5_AD

V+5R6_U

V+5R6_U

V+5R6_ST

-VF
FLAC2

FLAC1

V+5R6_ST

V+5R6_U

V+5R6_U

V+12A V+12A

V-12A

V-12A

V+5_USB

V+5R6_ST

V+5R6_C

V-5R6_C

FLAC2

-VF

V-5R6_C

V+5_UST

Q8382

2SC4081(QR)

+3V

Q8402

2SA1602A(EF)

-3V

V+5_C

V-5_C

V-3_V

V+3_V

Q8381

2SD1858X(QR)

+5.6V

Q8401

2SB1237X(QR)

-5.6V

V+5R6_C

V-5R6_C

Q8421

2SD1858X(QR)

+5.6V

V+5R6_V

V+5R6_V

T51

STBY

IC51

NJM78M56FA

+5.6V

Q2681

2SD1664(PQR)

+9V

Q2401

2SD1858X(QR)

+7V

Q2402

2SB1237X(QR)

-7V

TUNER

MODULE

IC4012

KIA7912PI

-12V

IC4011

KIA7812API

+12V

IC4001

NJM78M56FA

+5.6V

D5303

MTZJ10(B)

-30V

D5302

MTZJ20(B)

-20V

V+5_ST

V+3R3_ST

IC3003

S-1200B33-M5

+3.3V

V+5R6_U

FRONT AV

& MIC ASS'Y

V+7_A

V-7_A

-VCC

+VCC

V+5_V

V-5_V

V+5_OS1

V+5_OS2

Q5401

2SC5511(E)

(+54V)

Q5402

2SA2005(E)

(-54V)

+VPRE

-VPRE

D8382

RR264M-400

D8402

RR264M-400

V+5_U

V+5_UST

V+5R6_C

V-5R6_C

RECTIFIER

D4901

C4901, C4902

(+18V_UN)

(-19V_UN)

RECTIFIER

D5301,C5301

(+57V)

RECTIFIER

D5301,C5302

(-57V)

D8505

MC2846-11

D8507

1SS355

D8506

1SS355

V+12A

V-12A

V-5R6_C

FLAC1

Trans

V6 PRIMARY ASSY

BRIDGE

1 ASSY

T

H

POWER PACK ASSY

E

AUDIO ASSY

A

COMPONENT ASSY

C

V6

DISPLAY

ASSY

R

V6

COMPOSITE

ASSY

B

BRIDGE

2 ASSY

G

REGULATOR

ASSY

S

6 7 8

A

B

C

D

E

F

VSX-1019AH-K

5

6 7 8

27

1

Step 1: MUTE pin

Replace IC301.

Replace D582.

To Step 2

To Step 3

Step 0: Preliminary confirmation

Confirm the following items before checking

Do

screws of

earth terminal (KN481)

securely tighten

?

Tighten screws securely.

Note:

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

No

Yes

To Step 1

IC301 (Pin 84) (or R324)

Is the

voltage of output

signal 0 V

?

No

No

Yes

Replace IC582 (side B).

NG

Replace IC581.

NG

DSP1MUTE

V+5_DDD1

Check the Q1900 and
its periphery block.

Check the C121, C114
and C509.

Check the C333.

IC581 (Pin 1)

Is the

voltage of around

5 V input?

Is the

voltage of 3.3 V

output?

No

Yes

(to chassis)

V+3R3_D
(to chassis)

D582 (Cathode)

Is the

voltage of around

2.7 V output
?

No

Yes

IC581 (Pin 3)

No

Yes

Is the

voltage of 1 V

input?

C333 (+ side)

No

Yes

V+1_DSPF

NG

Check the C506 and C527(*)

(*) C527 is VSX-1019AH only

Check the TRANS 3 Assy.

Is the

voltage of 5 V

input?

C506 (+ side)

No

Yes

V+5_DAC

NG

Check the C606, C656, C706
and C756.

Replace Q551 (side B).

Is the

voltage of 5 V

input?

C606 (+ side)

No

Yes

V+5_DACA

NG

Check the C552.

Replace R552.

Is the

voltage of around

5 V input?

C552 (+ side)

No

Yes

V+5_DACD

Step 2: Power supply

Simplified diagnosis

Errors in the Audio Block of the DIGITAL MAIN Assy (those simply and roughly predictable by machine operation only)

• Sound abnormality in Delay
If sound abnormality does not occur in the Delay OFF state but occurs in the Delay ON state, it is most likely that a failure
has occurred in SDRAM (IC251) or LATCH (IC281, IC291) in the DSP Block.

• No sound at analog signal input
If sound abnormality does not occur with digital signal input (COAX, OPT, etc.) but occurs only with analog signal input,
it is most likely that a failure has occurred in the AD converter (IC501).

• No sound with the PQLS ON (normal sound with the PQLS OFF)
If no sound is output during CD playback with the PQLS ON, it is most likely that a failure has occurred in the crystal
oscillator (X361). (Diagnosis point A)

<If no sound is output in Multi-Channel-Signal Playback or Surround mode with the COAX, OPT, USB, and HDMI inputs>

• Assume that the LCRs are neither in poor connection nor damaged.

• Assume that diagnosis is performed from Side A.

• This shows failure analysis for the DSP Block of the DIGITAL MAIN Assy.

DSP T roubleshooting

Check the DSP and down
stream block. Go to step 6.

1

4

5

6

7

8

2

3

1

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

2 3 4

5. DIAGNOSIS

5.1 DIAGNOSIS FLOWCHART

A

B

C

D

E

F

28

1

VSX-1019AH-K

2 3 4

Step 4: DIR

Step 4-1

Check the parts and patterns
in the path.

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

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

Check the path to
the IC1305
(Port expander).

R101, R103

OPT

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

Can

observe the

digital signal

?

No

(0 V ⇔ 4 V)

Yes

R122, R123(*)

COAX (*) R123 is VSX-1019AH only

(*) VSX-1019AH only

(*)

Can

observe the

digital signal

?

No

Yes

Yes

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

(0 V ⇔ 3.3 V)

IC101 (Pin 5)

From HDMI block

Can

observe the

digital signal

?

No

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

Step 3: X'tal

To Step 4

Check the X362 (side B).

Replace IC361.

Replace IC361.

Yes

IC361 (Pins 1, 3, 5, 13)

IC361 (Pins 2, 4, 6, 12)

No

NG

Is there

a 24.576 MHz

input?

No

Is there

a 24.576 MHz

output?

Yes

Replace IC101.

Yes

No

Is there

a bit clock

output?

(0 V ⇔ 3.3 V)

To Step 5-3

Replace IC101.

(0 V ⇔ 3.3 V)

Yes

No

Is there

a LR clock

output?

Replace IC101.

Yes

R117

XDIRRST

No

NG

Is the

input signal

3.3 V?

Replace IC101.

(0 V ⇔ 3.3 V)

Yes

No

Is there a

data output?

(0 V ⇔ 3.3 V)

IC101 (Pin 23) (or R110)

DIRMCLK (Master clock)

IC101 (Pin 24) (or R111)

DIRLRCK (LR clock)

IC101 (Pin 25) (or R112)

DIRADAT (Data)

IC101 (Pin 26) (or R113)

DIRBCK (Bit clock)

No

Yes

Is there a

master clock

output?

Check that the data and clock signals are output.

• When the COAX or OPT is input, go to Step 4.

• When the HDMI (SPDIF path) is input, go to Step 4-1.
Used Source:

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

• When the HDMI (SACD) is input, go to Step 5-1.
Used Source: [SACD]

• When the HDMI (I2S path) is input, go to Step 5-2.
Used Source:

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

• When the USB is input, go to Step 5-3.

9

9

10
12

13
14

15

16

17

18

19

5

6 7 8

A

B

C

D

5

VSX-1019AH-K

6 7 8

E

F

29

1

To Step 6

Step 5: DSP input (digital)

Step 5-1

Step 5-3

Step 5-2

Step 5-4

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

Yes

IC301 (Pin 86) (or R326)

IC301 (Pin 85) (or R325)

IC301 (Pin 98) (or R332)

IC301 (Pin 99) (or R332)

LFE data (SACD)

No

Is there

a data input?

Yes

Center data (SACD)

No

Is there

a data input?

Yes

Surround L/R data
(Front R data (SACD))

No

Is there

a data input?

(0 V ⇔ 3.3 V)

(0 V ⇔ 3.3 V)

(0 V ⇔ 3.3 V)

Yes

Center/LFE data
(Surround L data (SACD))

No

Is there

a data input?

(0 V ⇔ 3.3 V)

IC301 (Pin 100) (or R332)

Yes

Surround Back L/R data
(Surround R data (SACD))

No

Is there

a data input?

(0 V ⇔ 3.3 V)

IC301 (Pin 89) (or R327)

IC301 (Pin 134)

Yes

DSP0MCLK

No

Is there

a data input?

(0 V ⇔ 3.3 V)

Yes

DSP1MCLK

No

Is there

a data input?

(0 V ⇔ 3.3 V)

IC301 (Pin 93) (or R330)

Yes

S3BCK

No

Is there

a data input?

(0 V ⇔ 3.3 V)

IC301 (Pin 97) (or R332)

Yes

Front L/R data
(Front L data (SACD))

No

Is there

a data input?

(0 V ⇔ 3.3 V)

IC301 (Pin 94) (or R331)

S3LRCK

No

Is there

a data input?

(0 V ⇔ 3.3 V)

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

• When the USB is input, check the IC1300
and IC800, and the parts and patterns in
the path.

• When the HDMI I2S or HDMI SACD is input,
check the HDMI block, and the parts and
patterns in the path.

• When the COAX, OPT or HDMI SPDIF is
input, check the parts and patterns in the
path.

When the source is SACD, go to Step 6.
When the source is others, go to Step 5-4.

20

21

22

22

22

23

24

25

22

26

A

2 3 4

B

C

D

E

F

30

1

VSX-1019AH-K

2 3 4