Pioneer VSX-1127-K, VSX-1122-K, VSX-60, VSX-1027-K Service manual

2012

VSX-1127-K

AV Receiver

VSX-1127-K

VSX-1122-K
VSX-60
VSX-1027-K

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

ORDER NO.

RRV4307

Model Type Power Requirement Remarks

VSX-1127-K CUXE AC 120 V

VSX-1122-K CUXESM AC 120 V

VSX-60 UXECB AC 120 V

VSX-1027-K CUXE AC 120 V

PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, 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

K-MZV MAR.

2012 Printed in Japan

1

WARNING

This product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive
harm.

Health & Safety Code Section 25249.6 - Proposition 65

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.

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 120 V
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)

2 3 4

SAFETY INFORMATION

A

B

C

D

E

F

2

1

2 3 4

VSX-1127-K

5

6 7 8

CONTENTS

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

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

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

1.2 NOTES ON REPLACING PARTS ................................................................................................................................... 5

1.3 SERVICE NOTICE.......................................................................................................................................................... 5

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

3. BASIC ITEMS FOR SERVICE .............................................................................................................................................. 9

3.1 CHECK POINTS AFTER SERVICING ........................................................................................................................... 9

3.2 JIGS LIST ....................................................................................................................................................................... 9

3.3 PCB LOCATIONS .........................................................................................................................................................10

4. BLOCK DIAGRAM ..............................................................................................................................................................12

4.1 OVERALL WIRING DIAGRAM .....................................................................................................................................12

4.2 AUDIO BLOCK DIAGRAM............................................................................................................................................14

4.3 D-AUDIO BLOCK DIAGRAM........................................................................................................................................ 16

4.4 D-VIDEO BLOCK DIAGRAM........................................................................................................................................ 18

4.5 VIDEO BLOCK DIAGRAM............................................................................................................................................ 20

4.6 POWER SUPPLY BLOCK DIAGRAM........................................................................................................................... 22

5. DIAGNOSIS ........................................................................................................................................................................ 24

5.1 TROUBLESHOOTING..................................................................................................................................................24

5.2 ERROR INDICATIONS ................................................................................................................................................. 32

5.3 DETECTION CIRCUIT ................................................................................................................................................. 33

5.4 IC INFORMATION ........................................................................................................................................................ 35

6. SERVICE MODE................................................................................................................................................................. 38

6.1 TEST MODE.................................................................................................................................................................38

6.2 DEFAULT SETTINGS ................................................................................................................................................... 40

7. DISASSEMBLY ................................................................................................................................................................... 41

8. EACH SETTING AND ADJUSTMENT................................................................................................................................48

8.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED .......................................................... 48

8.2 USB BACKUP...............................................................................................................................................................49

8.3 UPDATING OF THE FIRMWARE .................................................................................................................................51

8.4 IDLE CURRENT ADJUSTMENT ..................................................................................................................................54

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

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

9.2 EXTERIOR SECION.....................................................................................................................................................58

10. SCHEMATIC DIAGRAM .................................................................................................................................................... 62

10.1 AUDIO ASSY.............................................................................................................................................................. 62

MP7 ASSY (1/2) .......................................................................................................................................................64

10.2 A

10.3 AMP7 ASSY (2/2) .......................................................................................................................................................66

10.4 MAIN ASSY ................................................................................................................................................................68

10.5 D-MAIN ASSY (1/10) .................................................................................................................................................. 70

10.6 D-MAIN ASSY (2/10) .................................................................................................................................................. 72

10.7 D-MAIN ASSY (3/10) .................................................................................................................................................. 74

10.8 D-MAIN ASSY (4/10) .................................................................................................................................................. 76

10.9 D-MAIN ASSY (5/10) .................................................................................................................................................. 78

10.10 D-MAIN ASSY (6/10) ................................................................................................................................................80

10.11 D-MAIN ASSY (7/10) ................................................................................................................................................82

10.12 D-MAIN ASSY (8/10) ................................................................................................................................................84

10.13 D-MAIN ASSY (9/10) ................................................................................................................................................86

10.14 D-MAIN ASSY (10/10) .............................................................................................................................................. 88

10.15 IR ASSY.................................................................................................................................................................... 90

10.16 VIDEO ASSY............................................................................................................................................................ 92

10.17 BRG ASSY ............................................................................................................................................................... 94

10.18 FR

10.19 MIC, FVIDEO and HP ASSYS..................................................................................................................................98

10.20 G-L, G-R, WG-A, WG-B, CCG and BTCNT ASSYS................................................................................................. 99

10.21 FHDMI and F-USB ASSYS..................................................................................................................................... 100

10.22 SMPS ASSY ...........................................................................................................................................................102

10.23 BT ASSY.................................................................................................................................................................104

ONT and POWER ASSYS................................................................................................................................... 96

A

B

C

D

E

F

VSX-1127-K

5

6 7 8

3

1

2 3 4

11. PCB CONNECTION DIAGRAM ......................................................................................................................................106

11.1 AUDIO ASSY ............................................................................................................................................................106

A

11.2 AMP7 ASSY..............................................................................................................................................................108

11.3 MAIN ASSY...............................................................................................................................................................110

11.4 D-MAIN ASSY...........................................................................................................................................................114

11.5 IR ASSY ....................................................................................................................................................................118

11.6 VIDEO ASSY ............................................................................................................................................................120

11.7 BRG ASSY................................................................................................................................................................122

11.8 FRONT, POWER, MIC, FVIDEO and HP ASSYS.....................................................................................................124

11.9 G-L, G-R, WG-A and WG-B ASSYS.........................................................................................................................128

11.10 CCG and BTCNT ASSYS .......................................................................................................................................129

11.11 FHDMI and F-USB ASSYS .....................................................................................................................................130

11.12 BT ASSY .................................................................................................................................................................131

B

11.13 SMP

12. PCB PARTS LIST ............................................................................................................................................................134

S ASSY ...........................................................................................................................................................132

C

D

E

F

4

1

2 3 4

VSX-1127-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 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.

Assy Name

D-MAIN Assy

F-USB Assy

HDMI Connector —————— JACK with Cu-through-hole & SMD typeJA1601, JA9601-JA9607
USB Connector —————— JACK with Cu-through-hole & 6 pinJA9201
LAN Connector —————— JACK with Cu-through-hole & 10 pinJA9202
D-MAIN 3.3V Power Supply IC —————— IC with heat-padIC9520
D-MAIN 3.3V Power Supply IC —————— IC with heat-padIC9521
D-MAIN 1.8V Power Supply IC —————— IC with heat-padIC9522
DSP IC —————— IC with heat-padIC9002
VIDEO FORMAT CONVERTER —————— IC BGA typeIC1204
DDR IC —————— IC BGA typeIC1212
LAN PHY IC —————— IC with heat-padIC9203
NETWORK MEDIA PROCESSOR —————— IC BGA typeIC9204
HDMI Tx —————— IC with heat-padIC1602
HDMI Rx —————— IC with heat-padIC903
HDMI SW IC —————— IC with heat-padIC9602
USB 5V SW IC —————— IC with heat-padIC805
USB 5V SW Power Supply IC —————— IC with heat-padIC1307

Parts that is Difficult to Replace

Ref No. Function Part No. Remarks

• Discharging

For more detail, please refer to "7. DISASSEMBLY - 1. Discharging".

• Notes on Ground Points Connection

For more detail, please refer to "7. DISASSEMBLY - 2. Notes on Ground Points Connection".

6 7 8

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

A

B

1.2 NOTES ON REPLACING PARTS

1.3 SERVICE NOTICE

5

VSX-1127-K

6 7 8

C

D

E

F

5

1

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

0.08 %** total harmonic distortion.

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

Power output (1 kHz, 6 Ω, 1 %, 1 ch driven) ...............165 W

Guaranteed speaker impedance ........................ 6 Ω to 16 Ω

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

Audio Section

Input (Sensitivity/Impedance)

LINE.............................................................315 mV/47 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 Video .......................................... 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 High Speed (Type A) 5 V, 2.1 A

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

ADAPTER PORT terminal..................................5 V, 100 mA

WIRELESS LAN ADAPTER terminal .................5 V, 600 mA

Integrated Control Section

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

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

Network Section

LAN terminal................................ 10 BASE-T/100 BASE-TX

Miscellaneous

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

Power consumption .....................................................550 W

In standby.................... 0.2 W (HDMI Setup – Control :

OFF)

0.3 W (HDMI Setup – Control : ON)

Dimensions....... 435 mm (W) x 168 mm (H) x 362.5 mm (D)

(17 3/16 in. (W) x 6 5/8 in. (H) x 14 5/16 in. (D))

Weight (without package)

VSX-1127 ...................................................... 9.9 kg (21.8 lb)

VSX-1027 ...................................................... 9.8 kg (21.6 lb)

Note

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

• This product includes FontAvenue® fonts licensed by NEC
Corporation. FontAvenue is a registered trademark of NEC
Corporation.

VSX-1127-K, VSX-1027-K

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 0.08 %** total harmonic distortion.

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

Guaranteed speaker impedance ........................ 6 Ω to 16 Ω

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

Audio Section

Input (Sensitivity/Impedance)

LINE.............................................................315 mV/47 kΩ

Output (Level/Impedance)

REC............................................................315 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 Video ............................................. 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 High Speed (Type A) 5 V, 2.1 A

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

ADAPTER PORT terminal..................................5 V, 100 mA

WIRELESS LAN ADAPTER terminal .................5 V, 600 mA

Integrated Control Section

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

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

12 V Trigger terminal........................ø 3.5 Mini-jack (MONO)

12 V

Trigger output type........................... 12 V, Total 150 mA

RS-232C cable type ...........9-pin, cross type, female-female

Network Section

LAN terminal................................ 10 BASE-T/100 BASE-TX

VSX-60

2 3 4

2. SPECIFICATIONS

A

B

C

D

E

F

6

1

2 3 4

VSX-1127-K

5

Miscellaneous

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

Power consumption .....................................................550 W

In standby.................... 0.2 W (HDMI Setup – Control : OFF)

0.3 W (HDMI Setup – Control : ON)

Dimensions....... 435 mm (W) x 168 mm (H) x 362.5 mm (D)

(17 3/16 in. (W) x 6 5/8 in. (H) x 14 5/16 in. (D))

Weight (without package).................................9.9 kg (22 lb)

Note

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

• This product includes FontAvenue® fonts licensed by NEC
Corporation. FontAvenue is a registered trademark of NEC
Corporation.

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

0.08 %** total harmonic distortion.

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

Power output (1 kHz, 6 Ω, 1 %, 1 ch driven) ...............165 W

Guaranteed speaker impedance ........................ 6 Ω to 16 Ω

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

Audio Section

Input (Sensitivity/Impedance)

LINE.............................................................315 mV/47 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 Video ............................................. 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 High Speed (Type A) 5 V, 2.1 A

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

ADAPTER PORT terminal..................................5 V, 100 mA

WIRELESS LAN ADAPTER terminal .................5 V, 600 mA

Integrated Control Section

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

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

Network Section

LAN terminal................................ 10 BASE-T/100 BASE-TX

Miscellaneous

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

Power consumption .....................................................550 W

In standby.................... 0.2 W (HDMI Setup – Control :

OFF)

0.3 W (HDMI Setup – Control : ON)

Dimensions....... 435 mm (W) x 168 mm (H) x 362.5 mm (D)

(17 3/16 in. (W) x 6 5/8 in. (H) x 14 5/16 in. (D))

Weight (without package).................................9.9 kg (22 lb)

Note

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

• This product includes FontAvenue® fonts licensed by NEC
Corporation. FontAvenue is a registered trademark of NEC
Corporation.

VSX-1122-K

6 7 8

A

B

C

5

VSX-1127-K

6 7 8

D

E

F

7

A

Accessories

Remote control (AXD7664)
(8300766400010-IL)

AM loop antenna
(E601019000010-IL)

Warranty card

Quick start guide
(VSX-1127-K, VSX-1027-K: 5707000006590-IL)
(VSX-1122-K: 5707000006580-IL)
(VSX-60: 5707000006600-IL)

Safety Brochure

Operating instructions (CD-ROM)
(VSX-1127-K, VSX-1027-K: 6517000000550-IL)
(VSX-1122-K: 6517000000540-IL)
(VSX-60: 6517000000560-IL)

FM wire antenna
(E605010140010-IL)

Dry cell batteries
(AAA size IEC R03) x2

Microphone
(for Auto MCACC setup)
(APM7010)

Power cord
(L068125130010-IL)
(VSX-60 only)

iPod cable
(L308102013030-IL)

1

2 3 4

B

C

D

E

F

8

1

2 3 4

VSX-1127-K

5

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.

No.

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

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

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

8 Check the appearance of the product.

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 scratches or dirt on its appearance after receiving it for
service.

Jigs List

Jig Name Part No. Remarks

13P extension jig cable GGD1740 Diagnosis (AMP7 Assy ↔ AUDIO Assy)
3P extension jig cable GGD1741 Diagnosis (AMP7 Assy ↔ MAIN Assy)

Diagnosis (D-MAIN Assy ↔ IR Assy)Board to board extension jig cable GGD1798
Diagnosis (D-MAIN Assy ↔ IR Assy)Board to board extension jig cable GGD1799

Diagnosis (D-MAIN Assy ↔ BRG Assy)Board to board extension jig cable GGD1736

Diagnosis (D-MAIN Assy ↔ BRG Assy)Conversion jig GGD1802
Diagnosis (D-MAIN Assy ↔ IR Assy)Conversion jig GGD1803

Lubricants and Glues List

Name Part No. Remarks

Silicon grease GEM1057 Refer to "9.2 EXTERIOR SECTION".

Silicon adhesive

GYA1011
(KE40RTV-W)

Refer to "9.2 EXTERIOR SECTION".

6 7 8

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

A

B

3.2 JIGS LIST

5

6 7 8

VSX-1127-K

C

D

E

F

9

1

E

IR ASSY

N

G-R ASSY

Q

CCG ASSY

O

WG-A ASSY

P

WG-B ASSY

G

BRG ASSY

H

FRONT ASSY

S

FHDMI ASSY

T

F-USB ASSY

A

AUDIO ASSY

V

BT ASSY

D

D-MAIN ASSY

C

MAIN ASSY

J

MIC ASSY

K

FVIDEO ASSY

R

BTCNT ASSY

B

AMP7 ASSY

F

VIDEO ASSY

I

POWER ASSY

M

G-L ASSY

U

SMPS ASSY

L

HP ASSY

3.3 PCB LOCATIONS

A

2 3 4

B

C

D

E

F

10

VSX-1127-K

1

2 3 4

5

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.

Mark Symbol and Description VSX-1127-K/CUXE VSX-1122-K/CUXESM VSX-60/UXECB VSX-1027-K/CUXE

NSP 1..PCB TTL ASSY MAIN 7025HK1110020-IL 7025HK1110010-IL 7025HK1110030-IL 7025HK1109010-IL

2..MAIN ASSY 7028071711010-IL 7028071711010-IL 7028071711040-IL 7028071711010-IL

2..VIDEO ASSY 7028071712020-IL 7028071712070-IL 7028071712040-IL 7028071712070-IL

2..G-L ASSY 7028071713040-IL 7028071713040-IL 7028071713040-IL 7028071713040-IL

2..G-R ASSY 7028071714040-IL 7028071714040-IL 7028071714040-IL 7028071714040-IL

2..WG-A ASSY 7028071715040-IL 7028071715040-IL 7028071715040-IL 7028071715040-IL

2..WG-B ASSY 7028071716040-IL 7028071716040-IL 7028071716040-IL 7028071716040-IL

NSP 1..PCB TTL ASSY DMAIN 7025HK1110021-IL 7025HK1110011-IL 7025HK1110031-IL 7025HK1109011-IL

2..D-MAIN ASSY 7028071752020-IL 7028071752040-IL 7028071752040-IL 7028071752070-IL

NSP 1..PCB TTL ASSY FRONT 7025HK1110022-IL 7025HK1110012-IL 7025HK1110032-IL 7025HK1109012-IL

2..FRONT ASSY 7028071721050-IL 7028071721010-IL 7028071721040-IL 7028071721060-IL

2..POWER ASSY 7028071722010-IL 7028071722010-IL 7028071722040-IL 7028071722010-IL

2..MIC ASSY 7028071723040-IL 7028071723040-IL 7028071723040-IL 7028071723040-IL

2..FVIDEO ASSY 7028071724040-IL 7028071724040-IL 7028071724040-IL 7028071724040-IL

2..HP ASSY 7028071725040-IL 7028071725040-IL 7028071725040-IL 7028071725040-IL

NSP 1..PCB TTL ASSY AUDIO 7025HK1110023-IL 7025HK1110013-IL 7025HK1110033-IL 7025HK1109013-IL

2..AUDIO ASSY 7028071741050-IL 7028071741010-IL 7028071741040-IL 7028071741010-IL

NSP 1..PCB TTL ASSY IR 7025HK1110024-IL 7025HK1110014-IL 7025HK1110034-IL 7025HK1109014-IL

2..IR ASSY 7028071771010-IL 7028071771010-IL 7028071771040-IL 7028071771010-IL

2..SMPS ASSY 7028071772010-IL 7028071772010-IL 7028071772040-IL 7028071772010-IL

2..BRG ASSY 7028071773040-IL 7028071773040-IL 7028071773040-IL 7028071773070-IL

2..BTCNT ASSY 7028071774040-IL 7028071774040-IL 7028071774040-IL 7028071774040-IL

2..CCG ASSY 7028071775040-IL 7028071775040-IL 7028071775040-IL 7028071775040-IL

NSP 1..PCB TTL ASSY AMP7 7025HK1110025-IL 7025HK1110015-IL 7025HK1110035-IL 7025HK1109015-IL

2..AMP7 ASSY 7028071731040-IL 7028071731040-IL 7028071731040-IL 7028071731040-IL

NSP 1..PCB TTL ASSY FHDMI 7025HK1110026-IL 7025HK1110016-IL 7025HK1110036-IL Not used

2..FHDMI ASSY 7028071791040-IL 7028071791040-IL 7028071791040-IL Not used

NSP 1..PCB TTL ASSY F-USB 7025HK1110027-IL 7025HK1110017-IL 7025HK1110037-IL 7025HK1109017-IL

2..F-USB ASSY 7028071761020-IL 7028071761020-IL 7028071761020-IL 7028071761020-IL

NSP 1..PCB TTL ASSY BT 7025HK1110028-IL 7025HK1110018-IL 7025HK1110038-IL 7025HK1109018-IL

2..BT ASSY 7028070231010-IL 7028070231010-IL 7028070231010-IL 7028070231010-IL

6 7 8

A

B

C

D

E

F

VSX-1127-K

5

6 7 8

11

1

M

G-L ASSY

(7028071713040-IL)

POWER

TRANS

I

POWER ASSY
(VSX-1127-K, VSX-1122-K, VSX-1027-K:
7028071722010-IL)
(VSX-60: 7028071722040-IL)

J

MIC ASSY
(7028071723040-IL)

K

FVIDEO ASSY
(7028071724040-IL)

S

FHDMI ASSY
(7028071791040-IL)

VSX-1127-K,
VSX-1122-K,
VSX-60
ONLY

T

F-USB ASSY
(7028071761020-IL)

L

HP ASSY
(7028071725040-IL)

FRONT ASSY
(VSX-1127-K: 7028071721050-IL)
(VSX-1122-K: 7028071721010-IL)
(VSX-60: 7028071721040-IL)
(VSX-1027-K: 7028071721060-IL)

H

N

G-R ASSY

(7028071714040-IL)

O

WG-A ASSY

(7028071715040-IL)

Q

CCG ASSY

(7028071775040-IL)

R

BTCNT ASSY

(7028071774040-IL)

V

BT ASSY

(7028070231010-IL)

P

WG-B ASSY

(7028071716040-IL)

U

SMPS ASSY
(VSX-1127-K, VSX-1122-K,
VSX-1027-K: 7028071772010-IL)
(VSX-60: 7028071772040-IL)

CN601

CP603

CN602

CN

CP3001

CN3004

CP3501A

CP3501B

CN721

CN3652

CN3653

J3601

CN8201

JA8203

CN801

CP3002

CN

CX101

CX100

AC IN

CX102

-

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 impor tance

of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.

C

HDMI cable

2 3 4

4. BLOCK DIAGRAM

4.1 OVERALL WIRING DIAGRAM

A

B

C

D

E

F

12

1

VSX-1127-K

2 3 4

5

A

AUDIO ASSY
(VSX-1127-K: 7028071741050-IL)
(VSX-1122-K, VSX-60: 7028071741010-IL)
(VSX-1027-K: 7028071741010-IL)

E

IR ASSY
(VSX-1127-K, VSX-1122-K, VSX-1027-K:
7028071771010-IL)
(VSX-60: 7028071771040-IL)

AMP7 ASSY

(7028071731040-IL)

B

B

1/2-B2/2

D-MAIN ASSY
(VSX-1127-K: 7028071752020-IL)
(VSX-1122-K, VSX-60: 7028071752040-IL)
(VSX-1027-K: 7028071752070-IL)

D

D

1/10-D10/10

VIDEO ASSY
(VSX-1127-K: 7028071712020-IL)
(VSX-1122-K, VSX-1027-K:
7028071712070-IL)
(VSX-60: 7028071712040-IL)

F

G

BRG ASSY
(VSX-1127-K, VSX-1122-K, VSX-60:
7028071773040-IL)
(VSX-1027-K: 7028071773070-IL)

CP14

CP13

CP12

CP15

CN501

CP503

CP501

CP510

CP511

CP512

CP513

CN901

CN902

CN2103

CN2

CN5

CP7

CP19

CP18

CP16

CP12

CP10

CP6

CP8

CP9

CP17

CP1

CN9501

CN1801 CN1504

CN9202

CN1601

CN607

CN603

CN901

JA9605

CP3

CP2

CN3

CN1

CP401

CP404

CN2110 CN2113

CN2111 CN2105

CN2112

CN2203

CN2107

CP406

CP403

CP405

CN404

CP16

C

MAIN ASSY
(VSX-1127-K, VSX-1122-K, VSX-1027-K:
7028071711010-IL)
(VSX-60: 7028071711040-IL)

FFC

HDMI cable

6 7 8

A

B

C

D

E

5

6 7 8

VSX-1127-K

F

13

1

DVD

OPT1(TV)

HDMI5

SAT/CBL

SAT/CBL

DVR/BDR

DVR/BDR

CD

LAN8700

SII9387

SDRAM

DSP

FLASH

(iPad)

DVD

VSX922

BD BD

HDMI6

HDMI6

VSX1122

HDMI4 HDMI4

TUNER

ETHERNET

HDMI
SWITCHER

HDMI
RECEIVER

SII9233

ZONE2

REC OUT

DIRECT/DSP

SPDIF

R-CH
Audio
Selction

MAIN UCOM

COAX2(SAT/CBL)

COAX1(DVD)

OPT2(DVR/BDR)

DVR/BDR

SAT/CBL

DVD

DSD

FLASH

CODEC

VOLUME AND INPUT SELECTOR

PE7008

DIGITAL IN

USB FRONT

ETHERNET

BT DONGLE

MIC(Mini Jack)

ANALOG
INPUT

SPDIF

W9864G6JH-6

MX29LV640ETTI

ZONE2
DAC

UPD61110

AK4588

BD3473KS2

GATE ARRAY

HDMI IN

Only VSX-1127/1122/60

Only VSX-1127/1122/60

AK4388

W25Q16CVSSIG

D808K013CPTP400-K

Networked Media Processor

DM860A

A

AUDIO ASSY

A

AUDIO ASSY

J

MIC ASSY

D

D-MAIN ASSY

D

D-MAIN ASSY

D

D-MAIN ASSY

T

F-USB ASSY

V

BT ASSY

4.2 AUDIO BLOCK DIAGRAM

A

B

2 3 4

C

D

E

F

14

1

VSX-1127-K

2 3 4

5

I2S

RELAY BLOCK

SW2

SBL

SR

FL-A

SPDIF

AZ4580M

HDMI OUT

REC OUT1

ZONE2

SW1

SBR

SL

C

FR-A

HDMI OUT

VOL

FL-B/FL-H

BD3812F

HDMI
TRANSMITTER

SII9136

ARC SPDIF

RELAY

SPK OUT

FR-B/FR-H

HEADPHONE OUT

PRE-OUT

C

MAIN ASSY

L

HP ASSY

A

AUDIO ASSY

D

D-MAIN ASSY

6 7 8

A

B

C

D

E

F

VSX-1127-K

5

6 7 8

15

1

SEL

(V

IC18

ZDB

24.576MHz

22.5792MHz

DIR

COAX 1

COAX 2

OPT 1
OPT 2

ADC

XTI

MCKO1

BCK2
LRCK2
SDTO2

DAUX

27.0MHz

MSPDIF

I2S DT(multi-ch)

SOURCE-I2S

24MHz

NMP

BCo

BCK
LRCK

FD/DSDFL

CD/DSDLFE

SD/DSDC

BD/DSDSR
DSDSL
DSDFR

HDMI

RX

AK4588

HDMI

Tx

AMCLK
BCK
LRCK/DSDFR
FD/DSDFL

SD/DSDC
CD/DSDLFE

SPDIF/DSDS

BD/DSDSR

SPDIF/DSDS

HDMCK

DSDFR

SD/DSDC
CD/DSDLFE
SPDIF/DSDS
BD/DSDSR

NETMCK

I2S- DATA

I2S- BCK

I2S- LRCK

AND(VHC08)

IC9207

SEL (LCX157)

IC1805

DIRXAD

SEL

(VHC126)

IC1810

BCK
LRCK

FD/DSDFL
DSDFR

DIRMCK

ARC

BCK

LRCK

DSDFR

FD/DSDFL

AND(VHC08)

IC9003

BCK

LRCK

FD/DSDFL

AND(VHC08)

IC1601

TXMCLKI

D

D-MAIN ASSY

4.3 D-AUDIO BLOCK DIAGRAM

A

B

2 3 4

C

D

E

F

16

VSX-1127-K

1

2 3 4

5

24PQLS

XXTL0

DAMCLK

SEL

(VHC126)

IC1806

24.576MHz

22.5792MHz

22PQLS

DAZDB

SPDIF

AMCLK

I2S

I2S- SURR

I2S- C/LFE

I2S- SRB/HEIGHT

I2S- FW/ --

SYSCLK

ZONE - I2S (LR)

ZONE - AMCLK

FLG

DAC

FL/ FR

DAC

C/ LFE

DAC

SL/ SR

DAC

SBL/ SBR

I2S- LR

I2S- C/LFE

I2S- SURR

I2S- SRB/HEIGHT

Z2DAC

FL/ FR

-BCK

I2S- LRCK

I2S- LR

I2S- BCK
I2S- LRCK

NETPOW

DIRPOW

DVCPOW

20.0MHz

BCK
LRCK

FD/DSDFL

CD/DSDLFE

SD/DSDC

BD/DSDSR
DSDSL
DSDFR

1st DSP

DA808

AHCLKR0

ACLKR0
AFSR0
AXR0[1]
AXR0[2]

AHCLKR1

ACLKR1
AFSR1
AXR1[0]
AXR1[1]
AXR1[2]
AXR1[3]

AHCLKX0

ACLKX0

AFSX0

AXR0[7]D1FDT
AXR0[8]D1CDT
AXR0[9]D1SDT

AXR0[10]D1BWDT
AXR0[12]D1HWDT

I2S BCK,LRCK

ACLKR2
AFSR2

BCK
LRCK

FD/DSDFL
DSDFR

AND(VHC08)

IC1804

DSPMCLKI

DIRMCKI

TXMCLKI

6 7 8

A

B

C

D

5

VSX-1127-K

6 7 8

E

F

17

1

CK:27M
/DT:BT656

HDMI Rx

Silicon Image

"SiI9233A"

PortProcessor

SiliconImage

"SiI9387A"

Video Decoder

Analog Devices

"ADV7181C"

Gate Array

SEIKO EPSON

"PE7008A"

LAN PHY

SMCS

"LAN8700"

Media Processor

BRIDGE CO

"DM860A"

SDRAM- 166

128Mb(8Mx16)

FLASH ROM

64Mb(4Mx16)/90ns

iPod

Authentication

APPLE

(RENESAS)

36.864MHz

28.63636MHz

HDMI BDIN

HDMI IN1

HDMI IN2

HDMI IN3

HDMI IN5

COMPOSITE

COMPONENT

Pb

Pr

ETHERNET

CEC

ANALOG

VDEC480p output over
CK:27M-74.25MHz
/DT:16bit/DE,VS,HS

Y

24MHz

25 MHz

CK:27M
/DT:BT656

G

N

27 MHz

27MHz

HDMI IN4

CK:27M-148.5MH
/DT:30bit/DE,VS,H

CK:27M-148.5MHz
/DT:20+16bit/DE,VS,HS

HDMI IN6

S

FHDMI ASSY

4.4 D-VIDEO BLOCK DIAGRAM

A

B

2 3 4

C

D

E

F

18

VSX-1127-K

1

2 3 4

5

IP.SCALER

Marvell

"88DE2750"

EVENT ucom

SANYO

SDRAM

Array
EPSON

USB(FRONT)

HDMI OUT

Other ASSY

D-MAIN ASSY

22.5792MHz

POWER SUPPLY BLOCK Diagram

(DCDC,LDO)

TMDS

DIGITAL VIDEO

CEC

ANALOG VIDEO

CLOCK

DIGITAL AUDIO

DDR2

I2C

24.576MHz

20 MHz

20 MHz

HDMI Tx

Silicon Image

"SiI9136"

"EMMA2LL"

uCOMGUI

1st DSP

DA808HS

SDRAM- 166SeriFlash

Nor FLASH

27 MHz

D

D-MAIN ASSY

H

FRONT ASSY

T

F-USB ASSY

6 7 8

A

B

C

D

5

VSX-1127-K

6 7 8

E

F

19

1

BD

75

75

OSD

75

75

75

HDMI6

HDMI4

BD

HDMI6

HDMI4

DVR/BDR

COMP2-Cr

COMP1-Y

2V

2V

2V

DVD

SAT/CBL

DVD

COMP1-Cr

COMP2-Y

2V

2V

Sil9387ACTUC

COMP1-Cb

COMPONENT & CVBS SELECT

STBY

DVR/BDR

SAT/CBL

COMP2-Cb

Sil9233ACTU

Y LOS detect

NJW1329

AD

D

D-MAIN ASSY

K

FVIDEO ASSY

4.5 VIDEO BLOCK DIAGRAM

A

2 3 4

B

C

D

E

F

20

1

2 3 4

VSX-1127-K

75

75

68

68

68

75

75

75

-6dB

68

68

-6dB

3R9

3R9

3R9

-6dB

88DE2750

3R9

3R9

-6dB

PDC162A

Sil9136CTU

ADV7181CBSTZ

F

VIDEO ASSY

5

6 7 8

A

B

C

D

E

F

21

VSX-1127-K

5

6 7 8

1

IC100

CHASSIS GND

OPTION

-12V

+12V

+12V

KIA278R12PI

+5V

-5V

5.6V/MAX3.2A

SPK_RLY

DC/DC

S4( AC0. 2A, AC 2.5 5VX2)

MAIN TRANS

S2(DC1A, 15.6VX2)

S3(DC2.5A. DC12V)

S1(DC3.5A, 47VX2)

D

D-MAIN ASS

U

SMPS ASSY

C

MAIN ASSY

2 3 4

4.6 POWER SUPPLY BLOCK DIAGRAM

A

B

C

D

E

F

22

1

2 3 4

VSX-1127-K

5

ZONE2 VOL

VOL IC

TPS2557

2.1A

TUNER+5V

BT+5V

VOL IC

ZONE2 VOL

AOZ1073

REG +3.3V

DC/DC+1.2V

DC/DC+2.5V

TUNER B'D

B-

PREG

B+

AMPG

VIDEO+5V

DC/DC

DC/DC+1.5V

DC/DC+5V

VIDEO-5V

H

FRONT ASSY

L

HP ASSY

G

BRG ASSY

J

MIC ASSY

E

IR ASSY

F

VIDEO ASSY

A

AUDIO ASSY

K

FVIDEO ASSY

A

AUDIO ASSY

D-MAIN ASSY

B

AMP7 ASSY

T

F-USB ASSY

S

FHDMI ASSY

6 7 8

A

B

C

D

E

F

VSX-1127-K

5

6 7 8

23

1

No Power

Fuse F100 is open?

Is the voltage 5.6 V CX101
pins 5, 6, 7 (C129 + side) on
the SMPS Assy?

No power

Stand by (or ON -> Stand by)

?

Ye s

Ye s

Replace the SMPS Assy.

No

Ye s

Ye s

No

No

No

No

Is the voltage 5.6 V CN9501
pins 5, 6, 7 on the
D-MAIN Assy?

Error?

Other trouble

Refer to
"5.2 ERROR INDICATIONS".

Check D100, D101, D102, D104, T100,
IC102 or replace the SMPS Assy.

This is just for general reference and does not including every single case.

Check the cable between CX101 on the
SMPS Assy and CN9501 on the D-MAIN Assy.
If it is OK, replace that cable.

Ye s

No

Is the voltage 5.6 V CN601
pins 1, 2 on the
D-MAIN Assy?

Check +5.6V line on the D-MAIN Assy
or replace the D-MAIN Assy.

Ye s

No

Is the voltage 5.6 V CP3001
pins 38, 39 on the
FRONT Assy?

Replace the FFC between the D-MAIN Assy
and the FRONT Assy.

Ye s

No

Is the voltage 5.6 V C3042
on the FRONT Assy?

Replace D3002, D3003 or
replace the FRONT Assy.

Ye s

No

Is there 15 MHz output from
X3002 on the FRONT Assy?

Replace X3002 or
replace the FRONT Assy.

Ye s

OK

NG

Pin 2
VDD

Pin 1
Vout

5 V

3 ms

>1 ms

4.2 V

4.4 V

5 V

Check Reset IC (IC3005)
on the FRONT Assy.

Replace IC3005 or
replace the FRONT Assy.

Replace the D-MAIN Assy.

2 3 4

5. DIAGNOSIS

5.1 TROUBLESHOOTING

A

B

C

D

E

F

24

1

VSX-1127-K

2 3 4

5

No FL Display

Is the voltage 5.0 to 5.8 Vac
CN3004 pins 1, 2, 3 on the
FRONT Assy?

No FL Display

Dimmer?

Ye s

Ye s

Replace D3009, Q3006, Q3013
or replace the FRONT Assy.

No

No

No

Is the voltage 5 Vac FLT3001
pins 1 to 62 on the
FRONT Assy?

Ye s

Replace FLT3001
or replace the FRONT Assy.

Ye s

Replace FFC.

Ye s

Replace R809 or
replace the D-MAIN Assy.

"FL OFF" LED light on?

This is just for general reference and does not including every single case.

Check FLT3001, R3021, R3022, R3025, R3026,
L3007, ZD3001, or replace the FRONT Assy.

No

Check the transformer orange
wires voltage 5 to 6 Vac.

No

Replace the power transformer.

Ye s

No

Is the voltage -30 V CP3001
pin 1 on the FRONT Assy?

Is the voltage -30 V CN601
pin 39 on the D-MAIN Assy?

No

Is the voltage -30 V CN607
pin 9 on the D-MAIN Assy?

Ye s

Replace CP511 or
replace the IR Assy.

Replace Q17, R64, R66 or
replace the MAIN Assy.

No

No

Is the voltage -30 V CP511
pin 1 on the IR Assy?

Ye s

Replace CP12 or
replace the MAIN Assy.

No

Is the voltage -30 V CP12
pin 14 on the MAIN Assy?

Ye s

No

Is the voltage -30 V C3032

- side on the FRONT Assy?

Ye s

No

Is the voltage 5 V C3096
+ side on the FRONT Assy?

Ye s

Is there 5 MHz output from
X3001 on the FRONT Assy?

Ye s

Does FLT3001 have damage?

Ye s

Relpace FLT3001.

Relpace D3033, D3034, Q3011, Q3009,
IC3001 or replace the FRONT Assy.

Relpace L3008, IC3001 or
replace the FRONT Assy.

No

Relpace X3001, IC3001 or
replace the FRONT Assy.

No

Relpace the FRONT Assy.

6 7 8

A

B

C

D

E

F

VSX-1127-K

5

6 7 8

25

1

No Sound

No Sound

When headphones is connected,

relay is change to headphones?
(BRG Assy CN2113 pin 14 0 -> 5 V)

Set "STEREO" mode with STANDARD
SURROUND key and Speaker ON/OFF with
SPEAKERS key. (IR Assy CP512 pin 2 0 -> 5 V)

Check BRG Assy CN2113 pin 2
(HP_DET) is low with connection
of the headphones.

Check the BRG Assy R720
0 -> 12 V.

This is just for general reference and does not including every single case.

No

Replace IC612, IC603 or
replace the D-MAIN Assy.

Relay Control Check Flow

No

Replace Q2, Q9 or
replace the MAIN Assy.

No

Check the D-MAIN Assy CN603
pin 14 0 -> 5 V.

Check the MAIN Assy CP12 pin 11
0 -> 5 V.

Check the MAIN Assy R20
0 -> 12 V.

No

No

Does the sound output of
the speaker front ch?

No

Check the cable between BRG Assy
CN2113 and D-MAIN Assy CN1504.

Replace the HP Assy.

Replace the HP Assy.

Check the BRG Assy CN2111
pin 2 or 4 (HP OUTPUT SIGNAL).

Check the cable between BRG Assy
CN2112 and AUDIO Assy CP14.

Replace the IR Assy.

Replace the IR Assy.

Replace the MAIN Assy.

No Problem / No Damage

Ye s

Replace Q1, Q8 or
replace the BRG Assy.

Ye s

Ye s

Ye s

Ye s

No

No

No

Replace the D-MAIN Assy.

No Problem / No Damage

Ye s

Ye s

Ye s

Ye s

Headphones

Speaker Front ch sound

A

A

B

A

2 3 4

B

C

D

E

F

26

1

2 3 4

VSX-1127-K

5

Check the AMP7 Assy CP401
pins 1, 9 signals.

No

Check and repair FL or FR AMP
circuit or replace the AMP7 Assy.

Check CP13 pin 2 (VLSCK),
pin 3 (VLSO).

Input analog in (e.g. CD).
Set "PURE DIRECT" ->
Sound output from SP out?

No Problem / No Damage

No

Ye s

Check connector between CP16 on
AUDIO Assy and CP19 on the
MAIN Assy.

Ye s

Repair IC2502 and its peripheral
circuit or replace the AUDIO Assy.

Ye s

Repair IC2702 and its peripheral
circuit or replace the AUDIO Assy.

Ye s

Check the BRG Assy CN2203
pin 21 (12V), pin 20 (-12V).

Ye s

Repair IC2762 and its peripheral
circuit or replace the BRG Assy.

Ye s

Check +/- 12V line on BRG Assy or
replace the BRG Assy.

Ye s

Repair IC1801 and its peripheral
circuit or replace the D-MAIN Assy.

Ye sYe s

Ye s

Check the problem analog signal line between
input connector and IC2501 (Input selector IC)
or replace the AUDIO Assy.

Ye s

Ye s

Check the BRG Assy CN2107
pins 5, 7 signals.

Change to Auto Surround.

Check the AUDIO Assy CP16 pin 1
(12V), pin 5 (- 12V).

No

No

Check the BRG Assy CN2110
pins 17, 19 signals.

No

Check the AUDIO Assy CP12
pins 1, 3 signals.

No

Check the AUDIO Assy CP16
pin 1 (12V), pin 5 (- 12V).

No

No

Check and repair analog audio lines
between IC2501 pin 31, 32 and CP12
pins 1, 3 or replace the AUDIO Assy.

No

Repair IC1801, IC1807 and its
peripheral circuit or
replace the D-MAIN Assy.

No

Replace the BRG Assy.

INPUT?

No

Check the BRG Assy CN2110
pins 21, 23 signals.

Is digital signal from OPT
(or COAX) input OK?

Analog input

Digital input

Check the data signals at the following locations VLSCK pin 2, VLSO pin 3
CN2203 (FRONT Assy) -> CN2202 (BRG Assy) -> CN2113 (BRG Assy) -> CN1504 ( D-MAIN)
If no signals on BRG Assy, replace BRG Assy. If no signals on CN1509, replace D-MAIN Assy.

No

Replace CP16 on the AUDIO Assy or
CP19 on the MAIN Assy or
replace the MAIN Assy or AUDIO Assy.

Change analog input signal to another
analog input (e.g VIDEO) and select it.
Check the AMP7 Assy CP401 pin 1, 9 signals.

No

A

B

B

Ye s

A

6 7 8

A

B

C

D

E

F

VSX-1127-K

5

6 7 8

27

1

Check and repair AMP circuit of
problem channels
or replace the AMP7 Assy.

Ye s

Replace AUDIO Assy or
their peripheral circuit.

Ye s

Repair IC2742, IC2704, IC2782
and their peripheral circuit
or replace the BRG Assy.

Ye s

Change SP System and SP
Setting to correct setting.

Ye s

Check SP System menu is appropriate
and connected speakers are not
selected [No] on SP Setting menu.

Check Selection of Speaker system
by [SPEAKERS] key on front panel
is correct.

Ye s

Select Surround mode to
EX. STEREO in Advanced Surround.

Input analog signals to analog in
(e.g. CD), SP selection should be
"SP:B ON ", check SBR, SBL channels.

SP-B no sound

Ye s

Check relay operating of problem ch.
(refer to schematic diagram and Relay
Control Check flow for Front ch)

Check signals of problem channel on
AMP7 Assy CP401 pins 3 (SL), 5 (C),
7 (SR) ,11 (SBL),13 (SBR) signals.

Check signals on BRG Assy CN2107
pins 9 (SR), 11 (SL), 13 (SW),
15 (C), 17 (SBR), 19 (SBL) signals.

No

Check signals on BRG Assy CN2110
pins 5, 7, 9,11,13,15 signals.
(Pin assign is same as CN2107)

No

Replace the D-MAIN Assy.

Ye s

Input PCM to COAX in or OPT in,
set Auto Surround.
Is Front LR SP output sound is OK?

No

Repair IC1801 and its peripheral
circuit or replace the D-MAIN Assy.

No

No

Change SP selection to correct
setting by [SPEAKER] key.

No

B

C

Speaker C (S SB SP-B etc) ch
(Front LR is OK)

If Speaker System is "Normal (SB/FH)" or
"Normal (SB/FW) and speaker setting by
SPEAKER key is "SP: SB ON", there is no
sound from FH or FW.

Speaker System Menu

Setup name

Speaker B

Normal (SB/FH)

Normal (SB/FW)

Output sound

SP-B

Front High or SB

Front Wide or SB

A

B

2 3 4

C

D

E

F

28

1

2 3 4

VSX-1127-K

Set up Speaker Setting.

C

D

Replace the BT Assy.

Speaker OUT?

Check Speaker Setup.

Zone2 ON/OFF with MULTI-ZONE
ON/OFF key
(IR Assy CP512 pin 4 0 -> 5 V)

Tuner ->
(Other Analog OK)

BT in ->
(Other Analog OK)

Check CN9202 pin 5 3 V, pins 2, 3
Digital signal on the D-MAIN Assy.

Only HDMI IN1, IN2, IN3 and IN5
are no sound?

Only HDMI IN1, IN2 and IN3
are no sound?

USB in ->

HDMI in on rear ->

Rear HDMI inputs ->
output OK?

Front HDMI in ->

Ye s

It is specification.

HDMI input or DIGITAL input
(COAX or OPT) -> output?

No

Replace IC2501 or
replace the AUDIO Assy.

No

Check the BRG Assy CN2110
pins 21, 23 signals.

No

Repair IC1802 (DAC for ZONE2)
and its peripheral circuit or
replace the D-MAIN Assy.

No

Check the BRG Assy CN2107
pins 21, 23 signals.

Replace JACK50 (Tuner Pack)
on the MAIN Assy.

Same input Function?

Repair IC2802 or
replace the BRG Assy.

Refer to"Relay Control Check flow"
and check Speaker Relay Operating.

No

Replace IC805, IC1307 or
replace the F-USB Assy.

Repair IC1801 and its peripheral
circuit or replace the D-MAIN Assy.

Repair or replace the
D-MAIN Assy.

No

Repair IC1801 and its peripheral
circuit or replace the D-MAIN Assy.

No

No

No

No

Replace IC2501 or
replace the AUDIO Assy.

No

Media Server or USB in

-> Zone2 Pre-output?

Ye s

Ye s

It is specification.

Ye s

Ye s

Ye s

Ye s

Replace HDMI cable between
FHDMI Assy and D-MAIN Assy
or replace the FHDMI Assy.

Ye s

OK

Analog in -> Pre-output?

Zone2 Audio No output
(Front LR is OK)

Rec out no output

5

6 7 8

A

B

C

D

5

VSX-1127-K

6 7 8

E

F

29

A

No Picture

No Picture

This is just for general reference and does not including every single case.

No

No

Ye s

Ye s

Ye s

Front Video in ->
No Composite out

Component in ->
No Component out

Rear HDMI in ->
No HDMI out

Front HDMI in ->
No HDMI out

Composite in ->
No Composite out or
no zone2 Video out

Rear Composite in ->
Composite out?

HDMI IN1, IN2 and IN3

-> HDMI out?

Composite (Component) in ->
No HDMI out

Check CN902 pins 1, 3, 5, 7
signals on the VIDEO Assy.

No GUI

Replace the D-MAIN Assy.

No Zone2 OSD

Analog Video In -> Monitor Out?

Replace HDMI cable from FHDMI
Assy or replace the FHDMI Assy.

Ye s

Replace IC1007, Q1012, Q1013
or replace the VIDEO Assy.

Replace the FVIDEO Assy.

Replace the D-MAIN Assy.

Replace the D-MAIN Assy.

Replace the D-MAIN Assy.

No

No

Replace IC903 on the D-MAIN Assy
or replace the VIDEO Assy.

Replace IC1001 or
replace the VIDEO Assy.

Replace the D-MAIN Assy.

No

Replace the VIDEO Assy.

D

Check Speaker Front ch First.

Replace the FRONT AUDIO IN
Assy.

Other analog audio is OK?

Front AUDIO in ->

No

Ye s

B

1

2 3 4

C

D

E

F

30

VSX-1127-K

1

2 3 4