Pioneer SC-97, SC-99, SC-LX79-K, SC-LX79-S, SC-LX89-K Service Manual

...

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

AV RECEIVER

SC-99

SC-97 SC-LX89-K SC-LX89-S SC-LX79-K

ORDER NO .

RRV4617

SC-99

SC-LX79-S

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

Model Type Power Requirement Remarks

SC-99 CUXJ AC 120V SC-97 CUXJ AC 120V SC-LX89-K/-SSYXJ8 AC 220V to 230V SC-LX79-K/-SSYXJ8 AC 220V to 230V

THIS SERVICE MANUAL SHOULD BE USED TOGETHER WITH THE FOLLOWING MANUAL(S).

Model No. Order No. Remarks

SC-99, SC-97, SC-LX89-K/-S,

SC-LX79-K/-S

ARP4004 SCHEMATIC DIAGRAM, PCB CONNECTION DIAGRAM

K-FZV OCT.

2015 Printed in Japan

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.

56 noitisoporP - 6.94252 noitceS edoC ytefaS & htlaeH

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.

2 3 4

SAFETY INFORMATION

2 3 4

SC-99

6 7 8

CONTENTS

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

1. SERVICE PRECAUTIONS....................................................................................................................................................4

1.1 NOTES ON SOLDERING...............................................................................................................................................4

1.2 NOTES ON REPLACING ...............................................................................................................................................4

1.3 CAUTION................................... .. .......................................... .........................................................................................4

1.4 NOTES ON ASSEMBLING.............................................................................................................................................5

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

2.1 SC-99, SC-97 SPECIFICATIONS...................................................................................................................................6

2.2 SC-LX89, SC-LX79 SPECIFICATIONS..........................................................................................................................8

3. BASIC ITEMS FOR SERVICE............................................................................................................................................10

3.1 CHECK POINTS AFTER SERVICING .........................................................................................................................10

3.2 PCB LOCATIONS.........................................................................................................................................................11

3.3 JIGS LIST.....................................................................................................................................................................14

4. BLOCK DIAGRAM..............................................................................................................................................................15

4.1 OVERALL WIRING DIAGRAM ...................................................................................... ...............................................15

4.2 BLOCK DIAGRAM FOR AUDIO BLOCK......................................................................................................................16

4.3 BLOCK DIAGRAM FOR DIGITAL MAIN VIDEO BLOCK .............................................................................................17

4.4 BLOCK DIAGRAM FOR DIGITAL MAIN AUDIO BLOCK .............................................................................................18

5 BLOCK DIAGRAM FOR VIDEO BLOCK......................................................................................................................19

4.6 BLOCK DIAGRAM FOR POWER BLOCK (1)..............................................................................................................20

4.7 BLOCK DIAGRAM FOR POWER BLOCK (2)..............................................................................................................21

5. DIAGNOSIS ........................................................................................................................................................................22

5.1 DIAGNOSIS FLOWCHART..........................................................................................................................................22

5.2 CIRCUIT DESCRIPTION..............................................................................................................................................33

5.3 CONFIRMATION OF THE NETWORK MODULE.........................................................................................................42

6. SERVICE MODE.................................................................................................................................................................44

7. DISASSEMBLY ...................................................................................................................................................................47

8. EACH SETTING AND ADJUSTMENT................................................................................................................................68

8.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED..........................................................68

8.2 HOW TO SAVE AND LOAD THE SETTING USING BACKUP FUNCTION WITH USB MEMORY..............................69

8.3 REGION WRITING....................................... ... .......................................... ...................................................................70

8.4 HOW TO UPDATE FIRMWARE....................................................................................... .............................................71

9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................74

9.1 PACKING SECTION.....................................................................................................................................................74

9.2 EXTERIOR SECTION ..................................................................................................................................................76

9.3 REAR SECTION...........................................................................................................................................................78

...................80

9.4 CHASSIS SECTION............................................................................................................................

9.5 FRONT SECTION ........................................................................................................................................................82

10. PCB PARTS LIST..............................................................................................................................................................84

......

SC-99

6 7 8

• 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. Do NOT use a soldering iron whose tip temperature cannot be controlled.

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

PCB ASSY

Part No.

Ref No. FUNCTION Part No. Remarks

IC451 3CH SW POWER SUPPLY IC TPS65251RHA-TLB

IC with heat-pad IC1204 VIDEO PROCESSOR IC 88DE2750-K IC1212 DDR IC K4T51163QJ-BCE7-K

IC BGA type

IC1602 HDMI INTERFACE IC MN864787-K IC1609 HDMI INTERFACE IC MN864788-K IC9002 DSP IC CS49844A-K

IC with heat-pad

IC9206 APPLE AUTHENTICATION IC H337S3959-TBB

IC9602 HDMI SW IC SII9589CTUC-3-K

MM3543BH-TBB

IC9403 IC9514 IC9515

POWER SUPPLY IC

MIC94325YMT-TBB

IC9523

IC9703 DSP IC D808K013DPTP456-K

IC with heat-pad

JA1601 JA1602 JA1603

HDMI Connector AKP7268-A-K JACK with Cu-through-hole & SMD type

JA9202 LAN Connector AKN7115-A JACK with Cu-through-hole & 10 pin JA9601 JA9602 JA9603 JA9604 JA9605 JA9606 JA9607

DIGITAL

MAIN ASSY

AWX2013

(SC-99)

AWX2017

(SC-97)

AWX2014

(SC-LX89)

AWX2018

(SC-LX79)

JA9620

HDMI Connector

AKP7268-A-K JACK with Cu-through-hole & SMD type

Q4101 Q4102 Q4201 Q4202 Q4301 Q4302 Q4401 Q4402 Q4501 Q4502 Q4601 Q4602 Q4701 Q4702 Q4801 Q4802 Q4901

D AMP

ASSY

AWH7104

(SC-99)

AWH7108

(SC-97)

AWH7105

(SC-LX89)

AWH7109

(SC-LX79)

Q4902

FET IRF6775MPBFS1-TRB Pins are under the parts side.

DISPLAY

ASSY

AWX2026

(SC-99,SC-97)

AWX2027

(SC-LX89,

SC-LX79)

IC6001 FLASH BLANK UC IC R5F100MHAFA-K Software is not written.

• Discharging

Before starting the diagnosis, wait for three minutes until the electricity of the unit is discharged.

• Ground Points

Please refer to “Ground Points”.

2 3 4

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

1.2 NOTES ON REPLACING

2 3 4

SC-99

1.3 CAUTION

D AMP ASSY

Rear Panel

IR BUFFER_M ASSY

Accessory of Panel Base

IR Cover 85 (MTL)

BUFFER GND_M ASSY

BIND DM CABLE_M ASSY

Note : The right and left positions for the attachment positioning of digital amplifier block are gradual, however, adjust the

front and back positions correctly. For the positioning procedure, refer to "7. DISASSEMBLY".

When assembling the digital amplifier block, please note the following points of screws to prevent from short-circuit.

The following 7 points of screws must always be used AMZ30P060FTC

Points to be watched for swarf

If a screw at any of these points needs to be removed for service, be sure to check that the swarf is not on the screw before refastening.

6 7 8

1.4 NOTES ON ASSEMBLING

6 7 8

SC-99

Amplifier section

Continuous average power output*

8 Ω ................................................................................................................................... 140 W** per channel

6 Ω ...................................................................................... 200 W (SC-99)*** / 190 W (SC-97)*** per channel

* Measured pursuant to the Federal Trade Commission’s Trade Regulation rule on Power Output Claims for Amplifiers ** 1 kHz with no more than 0.08 %**** total harmonic distortion *** 1 kHz with no more than 1 %**** total harmonic distortion **** Measured by Audio Spectrum Analyzer

Multi channel simultaneous power output (1 kHz, 1 %, 8 Ω)

9 ch total.............................................................................................................850 W (SC-99)/810 W (SC-97)

Continuous Power Output (1 kHz, 8 Ω, 0.08 %)

Front...........................................................................................................................................140 W + 140 W

Center...................................................................................................................................................... 140 W

Surround....................................................................................................................................140 W + 140 W

Surround back............................................................................................................................140 W + 140 W

Top middle/Extra 1......................................................................................................................140 W + 140 W

Continuous Power Output (1 kHz, 6 Ω, 1.0 %)

Front...................................................................................... 200 W + 200 W (SC-99)/190 W + 190 W (SC-97)

Center................................................................................................................ 200 W (SC-99)/190 W (SC-97)

Surround............................................................................... 200 W + 200 W (SC-99)/190 W + 190 W (SC-97)

Surround back....................................................................... 200 W + 200 W (SC-99)/190 W + 190 W (SC-97)

Top middle/Extra 1................................................................. 200 W + 200 W (SC-99)/190 W + 190 W (SC-97)

Continuous Power Output (1 kHz, 4 Ω, 1.0 %)

Front...................................................................................... 255 W + 255 W (SC-99)/240 W + 240 W (SC-97)

Center................................................................................................................ 255 W (SC-99)/240 W (SC-97)

Surround............................................................................... 255 W + 255 W (SC-99)/240 W + 240 W (SC-97)

Surround back....................................................................... 255 W + 255 W (SC-99)/240 W + 240 W (SC-97)

Top middle/Extra 1................................................................. 255 W + 255 W (SC-99)/240 W + 240 W (SC-97)

Total harmonic distortion................................................................................ 0.04 % (1 kHz, 130 W + 130 W, 8 Ω)

Guaranteed speaker impedance........................................................................................................... 4 Ω to 16 Ω

Audio Section

Input (Sensitivity/Impedance)

PHONO MM................................................................................................................................... 5 mV/47 k Ω

LINE........................................................................................................................................... 400 mV/47 kΩ

Output (Level/Impedance)

REC........................................................................................................................................... 400 mV/2.2 kΩ

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

LINE........................................................................................................................................................103 dB

Tuner Section

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

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

Frequency Range (AM).......................................................................................................... 530 kHz to 1 700 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..........................................................................................................................1080i (1125i)

Digital In/Out Section

Bluetooth Section

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

HDMI output type....................................................................................................................................5 V, 55 mA

HDMI input/MHL terminal..................................................................................................................... 5 V, 900 mA

USB terminal.................................................................................................USB2.0 High Speed (Type A) 5 V, 1 A

USB terminal (SC-99 only).........................................................................................USB2.0 High Speed (Type B)

iPod terminal.....................................................................................................................................................USB

Version Output Estimated line-of-sight transmission distance* *The line-of-sight transmission distance is an estimate. Actual transmission distances supported may differ depending on surrounding conditions. Frequency range Supported Bluetooth profiles Supported Codec

........................................................................................................

......................................................................................................................

........................................................................................

.........................................................................................................................................

.............................................................................................................

........................................................................................................

Bluetooth Specification Ver. 2.1 + EDR

Bluetooth Specification Class 2

About 10 m

2.4 GHz

A2DP, AVRCP

SBC (Subband Codec), AAC

2 3 4

2. SPECIFICATIONS

2.1 SC-99, SC-97 SPECIFICATIONS

2 3 4

SC-99

Digital In/Out Section

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

HDMI output type ....................................................................................................................................5 V, 55 mA

HDMI input/MHL terminal ....................................................................................................................5 V, 900 mA

USB terminal ................................................................................................USB2.0 High Speed (Type A) 5 V, 1 A

USB terminal (SC-99 only)...........................................................................................USB2.0 High Speed (Type B)

iPod terminal .................................................................................................................................................... USB

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 (Wired)

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

Network Section (Wireless)

WLAN standards..........................................................IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n

Frequency band

2.4GHz band (2.412GHz to 2.462GHz)......................................................................Channel1 to Channel11

5GHz band (5.180GHz to 5.240GHz, 5.745GHz to 5.825GHz)

.....................................................................................Channel36 to Channel48, Channel149 to Channel165

Security ..............................................................................................................................Disabled (no encryption)

WEP (Key length: 64 bit/128 bit, Key format: ASCII/Hex)

WPA2 Mixed (WPA/WPA2, Encryption method: TKIP/AES, Recognition method: PSK)

Miscellaneous

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

Power consumption.........................................................................................................................................370 W

In standby..................................................................................................................................................0.1 W

In standby (HDMI control on).....................................................................................................................0.3 W

In standby (Network standby on)............................................................................................................... 2.7 W

In standby (Network standby on, wireless LAN connected)........................................................................3.0 W

In standby (HDMI control on, Network standby on)....................................................................................2.7 W

In standby (HDMI control on, Network standby on, wireless LAN connected)............................................3.0 W

Auto power down................................................................................................15 min, 30 min, 60 min, off (default)

Dimensions............................................................................................... 435 mm (W) x 185 mm (H) x 441 mm (D)

(17.13 in. (W) x 7.28 in. (H) x 17.36 in. (D))

Weight (without package)

SC-99.........................................................................................................................................17.6 kg (38.8 lb)

SC-97.........................................................................................................................................17.5 kg (38.6 lb)

Number of Furnished Parts

MCACC Setup microphone.......................................................................................................................................1

Remote control unit..................................................................................................................................................1

AAA size IEC R03 dry cell batteries...........................................................................................................................2

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

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

Power cord CD-ROM Quick start guide Safety Brochure Warranty sheet

For DTS patents, see http://patents.dts.com. Manufactured under license from DTS Licensing Limited. DTS, DTS-HD, the Symbol, & DTS and the Symbol together are registered trademarks, and DTS-HD Master Audio and DTS Neo:X |

Notes

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



Windows® and the Windows logo are trademarks of the Microsoft group of companies.

 Corporation and product names mentioned herein are trademarks or registered trademarks of the respective corporations.

 The Wi-Fi CERTIFIED Logo is a certification mark of Wi-Fi Alliance.  The Wi-Fi Protected Setup Identifier Mark is a certification mark of Wi-Fi Alliance.  SABRE DAC

and the logo are trademarks of ESS Technology, Inc.

 HTC, HTC Connect and the HTC Connect logo are trademarks of HTC Corporation.  MHL, the MHL Logo, and Mobile High-Definition Link are trademarks or registered trademarks of MHL, LLC in the

United States and other countries.

Apple, AirPlay, iPad, iPhone, iPod, iPod nano, iPod touch, iTunes, Safari, Bonjour, Mac, Mac OS and OS X are trademarks of Apple Inc., registered in the U.S. and other countries. The AirPlay logo is a trademark of Apple Inc.

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

6 7 8

SC-99

6 7 8

Amplifier section

Multi channel simultaneous power output (1 kHz, 1 %, 8 Ω)

9 ch total.................................................................................................... 850 W (SC-LX89)/810 W (SC-LX79)

Rated power output (1 kHz, 4 Ω, 1 %, 1 ch Driven)........................260 W (SC-LX89)/250 W (SC-LX79) per channel

Rated power output (1 kHz, 6 Ω, 1 %, 1 ch Driven)........................220 W (SC-LX89)/210 W (SC-LX79) per channel

For Oceania model: Maximum power output (1 kHz, 4 Ω, 10 %, 1 ch Driven)

......................................................................................................370 W (SC-LX89)/350 W (SC-LX79) per channel

Total harmonic distortion.................................................................................0.04 % (1 kHz, 130 W + 130 W, 8 Ω)

Guaranteed speaker impedance...............................................................................................................4 Ω to 16 Ω

Audio Section

Input (Sensitivity/Impedance)

PHONO MM.....................................................................................................................................5 mV/47 kΩ

LINE.............................................................................................................................................400 mV/47 kΩ

Output (Level/Impedance)

REC.............................................................................................................................................400 mV/2.2 kΩ

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

LINE.........................................................................................................................................................103 dB

Tuner Section

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

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

Frequency Range (AM)............................................................................................................531 kHz to 1 602 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...........................................................................................................................1080i (1125i)

Bluetooth Section

Version..........................................................................................................Bluetooth Specification Ver. 2.1 + EDR

Output .......................................................................................................................Bluetooth Specification Class 2

Estimated line-of-sight transmission distance* ........................................................................................About 10 m

*The line-of-sight transmission distance is an estimate. Actual transmission distances supported may differ depending on surrounding conditions.

Frequency range...........................................................................................................................................2.4 GHz

Supported Bluetooth profiles..............................................................................................................A2DP, AVRCP

Supported Codec..........................................................................................................SBC (Subband Codec), AAC

Digital In/Out Section

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

HDMI output type..................................................................................................................................... 5 V, 55 mA

HDMI input/MHL terminal ......................................................................................................................5 V, 900 mA

USB terminal..................................................................................................USB2.0 High Speed (Type A) 5 V, 1 A

USB terminal (SC-LX89 only)......................................................................................USB2.0 High Speed (Type B)

iPod terminal.......................................................................................................................................................USB

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 (Wired)

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

Network Section (Wireless)

WLAN standards...........................................................IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n

Frequency band

2.4GHz band (2.412GHz to 2.472GHz).......................................................................Channel 1 to Channel 13

5GHz band (5.180GHz to 5.240GHz)........................................................................Channel 36 to Channel 48

Security...............................................................................................................................Disabled (no encryption)

WEP (Key length: 64 bit/128 bit, Key format: ASCII/Hex)

WPA2 Mixed (WPA/WPA2, Encryption method: TKIP/AES, Recognition method: PSK)

2 3 4

2.2 SC-LX89, SC-LX79 SPECIFICATIONS

2 3 4

SC-99

Miscellaneous

Power requirements................................................................................................AC 220 V to 230 V, 50 Hz/60 Hz

Power consumption.........................................................................................................................................370 W

In standby...................................................................................................................................................0.1 W

In standby (HDMI control on).....................................................................................................................0.3 W

In standby (Network standby on)................................................................................................................2.7 W

In standby (Network standby on, wireless LAN connected)........................................................................3.0 W

In standby (HDMI control on, Network standby on)....................................................................................2.7 W

In standby (HDMI control on, Network standby on, wireless LAN connected).............................................3.0 W

Auto power down................................................................................................15 min (default), 30 min, 60 min, off

Dimensions................................................................................................435 mm (W) x 185 mm (H) x 441 mm (D)

Weight (without package)

SC-LX89..................................................................................................................................................18.1 kg

SC-LX79..................................................................................................................................................17.7 kg

Number of Furnished Parts

MCACC Setup microphone.......................................................................................................................................1

Remote control unit..................................................................................................................................................1

AAA size IEC R03 dry cell batteries.........................................................................................................................2

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

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

Wireless antenna.....................................................................................................................................................2

Power cord CD-ROM Quick start guide Safety Brochure Warranty sheet

Notes

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



Windows® and the Windows logo are trademarks of the Microsoft group of companies.

 Corporation and product names mentioned herein are trademarks or registered trademarks of the respective corporations.

 The Wi-Fi CERTIFIED Logo is a certification mark of Wi-Fi Alliance.  The Wi-Fi Protected Setup Identifier Mark is a certification mark of Wi-Fi Alliance.  SABRE DAC

and the logo are trademarks of ESS Technology, Inc.

 HTC, HTC Connect and the HTC Connect logo are trademarks of HTC Corporation.  MHL, the MHL Logo, and Mobile High-Definition Link are trademarks or registered trademarks of MHL, LLC in the

United States and other countries.

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

6 7 8

SC-99

6 7 8

10 Check the appearance of the product.

No scratches or dirt on its appearance after receiving it for service.

1 Check the firmware version. The firmware version must be the latest one.

If it is not the latest one, be sure to update it.

2 Confirm whether the customer complain has been solved.

If the customer complain occurs with the particular source, such as Dolby Digital, DTS, AAC and HDMI, input it for the operation check.

The customer complain must not be reappeared. Video, Audio and operations must be normal.

5 Check a supported music file playback (e.g. wav. flac. mp3, etc).

(Make the connections with a USB memory or an iOS device)

Audio and operations including OSD output must be normal.

6 Check the surround playback.

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

Each channel audio and operations must be normal.

3 Check the analog audio playback.

(Make the analog connections with a CD/DVD/BD player.)

Each channel audio and operations must be normal.

7 Check the video outputs.

(Connect with a BD player.)

Video and operations must be normal.

8 Check the tuner (AM and FM) operations. Audio and operations must be normal. 9 Check the sound from headphone output. Sound must be normal, without noise.

4 Check the HDMI digital audio playback.

(Make the digital connections with a BD player.)

Each channel audio and operations must be normal.

No. Procedures Check points

Items to be checked after servicing

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

oidua gnidrager dekcehc eb ot metIoediv gnidrager dekcehc eb ot metI

Block noise Distortion Horizontal noise Noise Flicker Volume too low Disturbed image (video jumpiness) Volume too high Too dark Volume fluctuating

detpurretni dnuoSthgirb ooT

Mottled color

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

2 3 4

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

2 3 4

SC-99

FFC GUARD_M ASSY

SC-99/CUXJ, SC-LX89-K/SYXJ8, SC-LX89-S/SYXJ8 only

:USB DAC ASSY

SC-97/CUXJ, SC-LX79-K/SYXJ8, SC-LX79-S/SYXJ8 only

:PRIMARY SHIELD ASSY

COMPOSITE ASSY

USB RECT_M ASSY

INTERFACE_M ASSY

AUDIO ASSY

COMPONENT ASSY

B DIODE ASSY

DIGITAL MAIN ASSY

Network Module

VREG GUARD ASSY

BIND B CABLE ASSY

DAC HIGH ASSY

BUFFER GND_M ASSY

IR REG_M ASSY

PRE BRIDGE_M ASSY

A-DAC BRIDGE ASSY

D-AUDIO BRIDGE ASSY

CONNECT_M ASSY

FB CONNECT ASSY

D-DAC BRIDGE ASSY

FRONT BRIDGE

ASSY

DISPLAY BRIDGE ASSY

F-IN BRIDGE ASSY

FAN CONNECT ASSY

MIC HP GUARD ASSY

A REG BRIDGE ASSY

PRIMARY ASSY

BIND DM CABLE_M ASSY

REG ASSY

IR BUFFER_M ASSY

D AMP ASSY

IR INTERFACE_M

ASSY

SC-99/CUXJ, SC-LX89-K/SYXJ8, SC-LX89-S/SYXJ8 only

:MCH BRIDGE ASSY

SC-99/CUXJ, SC-LX89-K/SYXJ8, SC-LX89-S/SYXJ8 only

:MULTI CH IN ASSY

3.2 PCB LOCATIONS

6 7 8

SC-99

6 7 8

VOL ASSY

ENCODER ASSY

DISPLAY ASSY

POWER SW ASSY

FRONT HDMI USB

ASSY

PANEL GUARD

ASSY

MIC HP ASSY

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.

2 3 4

Mark No. Description Part No.

LIST OF ASSEMBLIES

1...D AMP ASSY (SC-99) AWH7104

1...D AMP ASSY (SC-97) AWH7108

1...D AMP ASSY (SC-LX89) AWH7105

1...D AMP ASSY (SC-LX79) AWH7109

NSP 1...AUDIO COMPOSITE_H ASSY (SC-99) AWR7288

2..AUDIO ASSY AWX2076

2..COMPOSITE ASSY AWX2085

2..D-AUDIO BRIDGE ASSY AWX2196

2..D-DAC BRIDGE ASSY AWX2197

2..A-DAC BRIDGE ASSY AWX2198

NSP 1...AUDIO COMPOSITE_H ASSY (SC-97) AWR7292

2..AUDIO ASSY AWX2080

2..COMPOSITE ASSY AWX2086

2..D-AUDIO BRIDGE ASSY AWX2196

2..D-DAC BRIDGE ASSY AWX2197

2..A-DAC BRIDGE ASSY AWX2198

NSP 1...AUDIO COMPOSITE_H ASSY (SC-LX89) AWR7289

2..AUDIO ASSY AWX2077

2..COMPOSITE ASSY AWX2085

2..D-AUDIO BRIDGE ASSY AWX2196

2..D-DAC BRIDGE ASSY AWX2197

2..A-DAC BRIDGE ASSY AWX2198

NSP 1...AUDIO COMPOSITE_H ASSY (SC-LX79) AWR7293

2..AUDIO ASSY AWX2081

2..COMPOSITE ASSY AWX2086

2..D-AUDIO BRIDGE ASSY AWX2196

2..D-DAC BRIDGE ASSY AWX2197

2..A-DAC BRIDGE ASSY AWX2198

NSP 1...PRIM DISPLAY ASSY (SC-99/SC-97) AWM8417

2..MIC HP ASSY AWX2048

2..DISPLAY ASSY AWX2026

2..VOL ASSY AWX2029

2..POWER SW ASSY AWX2030

2..PRIMARY ASSY AWX2038

2..ENCODER ASSY AWX2051

2..MIC HP GUARD ASSY AWX2052

2..FAN CONNECT ASSY AWX2055 NSP 2..VREG GUARD ASSY AWX2053 NSP 2..PANEL GUARD ASSY AWX2054

Mark No. Description Part No.

NSP 1...PRIM DISPLAY ASSY (SC-LX89/SC-LX79) AWM8418

2..MIC HP ASSY AWX2049

2..DISPLAY ASSY AWX2027

2..VOL ASSY AWX2029

2..POWER SW ASSY AWX2030

2..PRIMARY ASSY AWX2039

2..ENCODER ASSY AWX2051

2..MIC HP GUARD ASSY AWX2052

2..FAN CONNECT ASSY AWX2055 NSP 2..VREG GUARD ASSY AWX2053 NSP 2..PANEL GUARD ASSY AWX2054

NSP 1...IR BUFFER_M ASSY (SC-99/SC-97) AWM8423

2..IR BUFFER_M ASSY AWX2093

2..BUFFER GND_M ASSY AWX1783

NSP 1...IR BUFFER_M ASSY (SC-LX89) AWM8424

2..IR BUFFER_M ASSY AWX2094

2..BUFFER GND_M ASSY AWX1783

NSP 1...IR BUFFER_M ASSY (SC-LX79) AWM8426

2..IR BUFFER_M_ASSY AWX2096

2..BUFFER GND_M ASSY AWX1783

NSP 1...INTERFACE REG_M ASSY (SC-99) AWR7296

2..INTERFACE_M ASSY AWX2120

2..IR REG_M ASSY AWX2124

2..B DIODE ASSY AWX2130

2..PRE BRIDGE_M ASSY AWX1822

2..A REG BRIDGE ASSY AWX2132 NSP 2..FFC GUARD_M ASSY AWX1821 NSP 2..BIND B CABLE ASSY AWX1826

NSP 1...INTERFACE REG_M ASSY (SC-97) AWR7299

2..INTERFACE_M ASSY AWX2120

2..IR REG_M ASSY AWX2127

2..B DIODE ASSY AWX2130

2..PRIMARY SHIELD ASSY AWX1820

2..PRE BRIDGE_M ASSY AWX1822

2..A REG BRIDGE ASSY AWX2132 NSP 2..FFC GUARD_M ASSY AWX1821 NSP 2..BIND B CABLE ASSY AWX1826

NSP 1...INTERFACE REG_M ASSY (SC-LX89) AWR7297

2..INTERFACE_M ASSY AWX2121

2..IR REG_M ASSY AWX2125

2..B DIODE ASSY AWX2131

2..PRE BRIDGE_M ASSY AWX1822

2..A REG BRIDGE ASSY AWX2133 NSP 2..FFC GUARD_M ASSY AWX1821 NSP 2..BIND B CABLE ASSY AWX1826

2 3 4

SC-99

6 7 8

Mark No. Description Part No.

NSP 1...INTERFACE REG_M ASSY (SC-LX79) AWR7300

2..INTERFACE_M ASSY AWX2121

2..IR REG_M ASSY AWX2128

2..B DIODE ASSY AWX2131

2..PRIMARY SHIELD ASSY AWX1820

2..PRE BRIDGE_M ASSY AWX1822

2..A REG BRIDGE ASSY AWX2133 NSP 2..FFC GUARD_M ASSY AWX1821 NSP 2..BIND B CABLE ASSY AWX1826

NSP 1...REG BRIDGE ASSY (SC-99) AWR7306

2..REG ASSY AWX2149

2..FRONT BRIDGE ASSY AWX1833

2..DISPLAY BRIDGE ASSY AWX2155

2..F-IN BRIDGE ASSY AWX2158

2..MULTI CH IN ASSY AWX2159

2..MCH BRIDGE ASSY AWX1840

2..FB CONNECT ASSY AWX1841

2..CONNECT_M ASSY AWX2162

2..USB RECT_M ASSY AWX2165

2..BIND DM CABLE_M ASSY AWX1846

NSP 1...REG BRIDGE ASSY (SC-97) AWR7309

2..REG ASSY AWX2152

2..FRONT BRIDGE ASSY AWX1833

2..DISPLAY BRIDGE ASSY AWX2155

2..F-IN BRIDGE ASSY AWX2158

2..FB CONNECT ASSY AWX1841

2..CONNECT_M ASSY AWX2162

2..USB RECT_M ASSY AWX2165

2..BIND DM CABLE_M ASSY AWX1846

NSP 1...REG BRIDGE ASSY (SC-LX89) AWR7307

2..REG ASSY AWX2150

2..FRONT BRIDGE ASSY AWX1833

2..DISPLAY BRIDGE ASSY AWX2156

2..F-IN BRIDGE ASSY AWX2158

2..MULTI CH IN ASSY AWX2160

2..MCH BRIDGE ASSY AWX1840

2..FB CONNECT ASSY AWX1841

2..CONNECT_M ASSY AWX2163

2..USB RECT_M ASSY AWX2166

2..BIND DM CABLE_M ASSY AWX1846

1...DIGITAL MAIN ASSY (SC-99) AWX2013

2..NETWORK MODULE AXX7293

1...DIGITAL MAIN ASSY (SC-97) AWX2017

2..NETWORK MODULE AXX7293

1...DIGITAL MAIN ASSY (SC-LX89) AWX2014

2..NETWORK MODULE AXX7293

1...DIGITAL MAIN ASSY (SC-LX79) AWX2018

2..NETWORK MODULE AXX7293

1...FRONT HDMI USB ASSY (SC-99/SC-97) AWX2115

1...FRONT HDMI USB ASSY (SC-LX89) AWX2116

1...FRONT HDMI USB ASSY (SC-LX79) AWX2118

1...USB DAC ASSY (SC-99) AWX2056

1...USB DAC ASSY (SC-LX89) AWX2057

NSP 1...REG BRIDGE ASSY (SC-LX79) AWR7310

2..REG ASSY AWX2153

2..FRONT BRIDGE ASSY AWX1833

2..DISPLAY BRIDGE ASSY AWX2156

2..F-IN BRIDGE ASSY AWX2158

2..FB CONNECT ASSY AWX1841

2..CONNECT_M ASSY AWX2163

2..USB RECT_M ASSY AWX2166

2..BIND DM CABLE_M ASSY AWX1846

1...IR INTERFACE_M ASSY AWX1776

1...DAC HIGH ASSY (SC-99) AWX2063

1...DAC HIGH ASSY (SC-97) AWX2067

1...DAC HIGH ASSY (SC-LX89) AWX2064

1...DAC HIGH ASSY (SC-LX79) AWX2068

1...COMPONENT ASSY (SC-99) AWX2105

1...COMPONENT ASSY (SC-97) AWX2108

1...COMPONENT ASSY (SC-LX89) AWX2106

1...COMPONENT ASSY (SC-LX79) AWX2109

SC-99

6 7 8

3.3 JIGS LIST

[1] Jigs List

Name

Jig No.

Remarks

Diagnosis for AUDIO ASSY, D AMP ASSY Diagnosis for AUDIO ASSY, D AMP ASSY,

DIGITAL MAIN ASSY(side-B), DAC HIGH ASSY, USB DAC ASSY Diagnosis for AUDIO ASSY, D AMP ASSY,

DIGITAL MAIN ASSY(side-B), DAC HIGH ASSY, USB DAC ASSY Diagnosis for AUDIO ASSY, D AMP ASSY Diagnosis for DIGITAL MAIN ASSY(side-B), DAC HIGH ASSY,

USB DAC ASSY Diagnosis for DIGITAL MAIN ASSY(side-B), DAC HIGH ASSY,

USB DAC ASSY

15P FFC extension jig cable GGD1680

29P board to board extension jig cable GGD1856

5P board to board extension jig cable GGD1857

24P board to board extension jig cable x 2

GGD1871

5P PH Housing ASSY extension jig cable GGD1594

23P board to board extension jig cable GGD1875

30P + 30P board to board extension jig cable

GGD1682

28P board to board extension jig cable GGD1867

20P board to board extension jig cable GGD1868

[2] Lubricants and Glues List

Name

Lubricants and Glues No.

Remarks

Silicone Grease

GYA1001

Refer to “9.5 FRONT SECTION”

[3] Cleaning

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

Name skrameR.oN traPdenaelc eb ot noitisoP

Refer to “9.4 CHASSIS SECTION”Cleaning paper GED-008Fan

2 3 4

SC-99

2 3 4

4. BLOCK DIAGRAM

15/60

9/65

TUNER MODULE

24 24

AC CORD

SECONDARY

PRIMARY

3/100

*2mm

4/100

39/120

1.-B+15V

2.-B

1.V+12_DF

2.GND_DF

3.V-12_DF

4.GND_DF(S)

5.V+12_RY

6.V-12_RY

7.V+15_VDD

1.ACWP

2.GNDV

3.GNDV

4.V+5_V

5.-VF

6.FL AC2

7.FL AC1

15/330

FAN

B-DIODEIR REG

REG

USB RECT

19.EXSO

18.EXSCK

17.EXOE

16.EXST

15.XOLERR

14.XBERR

13.IRMUTEA

12.IRMUTESB

11.IRMUTEFH

10.RY_FW

9.RY_AF

8.Ry_CR

7.Ry_FH

6.Ry_B

5.AMP_TEMP

4.XTEMPSD5

3.XDCERR

2.GNDD

1.GNDD

3.LOCKDET

2.V-FAN

1.V+FAN

19/90

*1.00mm

55 5555 5

FU32

FU31

FU21

FU22

1.V+8_MD

2.GND_MD

3.V-8_MD

4.GND_MD(S)

FU12!FU11

FU15

FU14!FU13

ADD7795-

ADD7791-

ADD7725-

ADD7794-

ADX7746-

4/195

ADD7796-

D20PYY0410E

D20PYY0310E

ADX7755-

4/375

ADX7759-

3/190

*1.00mm

4.-B

3.GND

2.GND

1.+B

CN8301

CN3472

CN6001

JP6004

JP6002

CN7006

CN4000

CN4001

JP3001

CN7723

CN2503

CN7724

CN3051

CN6952

CN3601

CN8303

JP7725

CN6801

CN6951

JP8402

CN7401

CN7400

CN7201

CN7251CN7241

CN7271

CN7281

CN7502

CN7603

CN6803 CN6802

CN3801CN3802

24 24

2424

AXM7040-

*1 !

BOARD IN

FFC

2.0mm FLAT CABLE

FFC CONNECTOR

2.0mm CABLE HOLDER

*2mm

BOARD TO BOARD

CN4002

CN4003

CN4004

T1501

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

4.-B(-65V)

3.GND

2.GND

1.+B(+65V)

5 55555 5

CN3870

CN3880CN3890 CN3830

CN3840

CN3850

CN3860

CN4700

CN4100CN4200 CN4300CN4400CN4500CN4600

CN7601

CN7501

S2,S3,S9

S5,S6

JP6001

CN6003

ADD7783-

5/60

ANOTHER CONNECTOR

CN3401

CN3371

J3004

J3002

JUMPER CONNECTOR

CN2502

CN3001

CN3902

CN251018CN7671

CN767218CN7761

CN7722

7 17

CN7721

2820

CN3794CN3792

2820

CN3793CN3791

3030

CN3783 CN3781

2820

30 30

CN7953CN7954

717

CN7684

CN7683

717

CN7682CN7681

717

CN7002 CN7007

CN7004 CN7003

CN7005

CN7008

157

CN7661CN7662

V-REG A-REG

1.XFANERR

2.FANCTLL

3.FANCTLH

4.EXSO

5.EXSCK

6.EXOE

7.EXST

8.XOLERR

9.AMP_TEMP

10.IRMUTEA

11.IRMUTESB

12.IRMUTEFH

13.RY_FW

1.XFANERR

2.FANCTLH

3.FANCTLL

4.XMICDET

5.V-7_A

6.GNDA

7.GNDA

8.V+7_A

9.MICOUT

10.GNDA

11.HPL

12.GNDHP

13.GNDHP

14.HPR

15.GNDHP

16.AMUTE

17.XHPDET

7.FLAC1

6.FLAC2

5.-VF

4.V+12TRG

3.V+5_V

2.GNDV

1.GNDV

1.FLAC1

2.FLAC2

3.-VF

4.V+5_V

5.GNDV

6.GNDV

7.ACWP

15.NC

14.NC

13.XMICDET

12.V-7_A

11.GNDA

10.V+7_A

9.GNDA

8.MICOUT

7.GNDA

6.HP_L

5.GNDHP

4.HP_R

3.GNDHP

2.AMUTE

1.XHPDET

CN7664

CN3651

CN7663

*1.00mm

CN7903

CN7902

*1.00mm

1.XHPDET

2.AMUTE

3.GNDHP

4.HPR

5.GNDHP

6.GNDHP

7.HPL

8.GNDA

9.MICOUT

10.GNDA

11.V+7_A

12.GNDA

13.GNDA

14.V-7_A

15.XMICDET

18.GNDA

17.GNDA

16.SBL IN

15.GNDA

14.SBR IN

13.GNDA

12.SL IN

11.GNDA

10.SR IN

9.GNDA

8.C IN

7.GNDA

6.SW IN

5.GNDA

4.FL IN

3.GNDA

2.FR IN

1.GNDA

HDMI CONNECTOR

JA9620 CN601

CN901

CN9501

CN7602

1.V+5_V

2.GNDV

3.GNDV

4.V-5_V(GNDV)

*1.00mm

ADX7753-

7/240

19/360

ADX7732-

ADX7821-

7/(505/590)

ADX7812-

7/205

JP51

ADX7729-

7/75

1.FLAC1

2.FLAC2

3.-VF

4.V+12TRG

5.GNDV

6.GNDV

7.V+5_V

5.V-12_A

4.GNDA

3.GNDA

2.V+12_A

1.V+6_AD

ADX7745-

5/150

1.XFANERR

2.FANCTLL

3.FANCTLH

*4 *4

*1.00mm

FU4

FU1

JA71_1 WHT

JA71 YEL

JA8001 JA8002

iPod Direct USB HDMI IN5

PIN JACK

JA3471

MIC IN HEADPHONE

JA3476

MCACC setup

MODEL AC CORDMAIN TRANS

CUXJ

JXJ

DLXJ

FXJ

SYXJ8

1.S1-1

2.S1-C

3.S1-2

1.S3-1

2.S3-C

3.S3-2

4.S2-1

5.S2-2

6.S9-1

7.S9-C

8.S9-2

FU10

JA7005

OUT

JA7003

12V TRG1 12V TRG2

IR IN2

JA7001

IR IN1

1.FLAC1

7.GNDV

17.XFANERR

1.XHPDET

JA7761 JA7762

C SW

SSB

3.S7-2

2.NC

1.S7-1

15.HP L

1.NC

1.XFANERR

2.FANCTLL

3.FANCTLH

15.XHPDET

1.XMICDET

5.S6-2

4.S6-1

3.S5-2

2.S5-C

1.S5-1

1.S4-1-1

2.S4-2-1

3.S4-C

4.S4-2-2

5.S4-1-2

(DVR) (DVD)

JA8301JA8304

JA8601

IN1

PR PB

232C MONITOR IN2

OUT

1.V-5_V(NC)

2.GNDV

3.V+5_V(NC)

4.GNDV

5.NC

6.GNDV

7.NC

8.GNDV

9.DVR_OUT

10.GNDV

11.MONITOR_OUT

12.GNDV

13.DVR_IN

14.GNDV

15.NC

16.GNDV

17.TV/SAT_IN

18.GNDV

19.NC

20.GNDV

SW1&SW2F

JA3101

JA3202JA3201

PRE OUT

SBSLFH

PHONO

JA2503

JA9202

LAN

FRONT

CENTER

JA4101

F-HEIGHT

RL RL

SURROUND

JA4301LRJA4901

S-BACK

JA4501

for IC6001 DBUG&D.L.

CN6002

FU2

MAIN TRANS

MODEL

JXJ

FXJ

FU11,FU12 FU13,FU14 FU15

FU1 FU4

FU31,FU32

FU2

FU21,FU22

FU10

*OPTION

MODEL

CUXJ SYXJ8

JXJ

FXJ

DLXJ

MICROPHONE REMO-COM

J0002

J0006

J0001

J0007

J0004

J0005

Y0020

Y0026

Y0023

CUXJ

SYXJ8

DLXJ FXJ JXJ

SYXJ8

SHIELD CABLE

CN3652

1.TURST

2.TUSDA

3.TUSCL

4.TUIREQ

5.NC

6.GNDT

7.TR

8.V+5T

9.TL

3.LOCKDET

2.V-FAN

1.V+FAN

CN7291

1.V+FAN

2.V-FAN

3.LOCK DET

D20PYY0310E

3/100

JP6003

J3003

CN3501

*2mm

F-WIDE/B

JA5101

55 5

CN3820

CN4900

CN3810

CN4800

KN6962

JA3103

3/110

OUT

CN5931 CN5932

IN5

JP5775

5.V-12_A

4.GNDA

3.GNDA

2.V+12_A

1.V+6_AD

CN5775

5.V-12_A

4.GNDA

3.GNDA

2.V+12_A

1.V+6_AD

5/60

ADX7773-

ADX7766-

CN550117CN1984

1.USBDPON

2.XRT_USB_B

3.GNDD

4.USBMCLK

5.GNDD

6.USBLRCK

7.GNDD

8.USBBCK

9.GNDD

10.USBADAT

11.V+3R3_USB

12.V+3R3_USB

13.GNDD

14.GNDD

15.SCL_USB_B

16.SDA_USB_B

17.INT_USB_B

USB-DAC IN JA5501

CN3771

CN1502

24.NC

1.FHMUTE

CN3772

CN2861

(SC-99, SC-LX89 only)

1.RYFR

2.RYCSR

3.RYFWFH

4.RYSB

5.XBERR

6.XTEMPSD5

7.XDCERR

8.GNDD

9.GNDD

10.12VTRG1

11.12VTRG2

12.12VERR

13.GNDD

14.GNDD

15.IR_IN

16.V+5R6_EV

17.V+5R6_EV

18.GNDD

19.GNDD

39/140

J0003

ADD7787-

2/205

ADX7760-

*1.25mm

JA7004

15.GNDD

16.EV232TX

17.EV232RX

18.232POW

19.232CDET

20.GNDD

21.GNDD

22.V+5R6_EV

23.V+5R6_EV

1.GNDD

2.Y_IN

3.GNDD

4.CB_IN

5.GNDD

6.CR_IN

7.GNDD

8.CVBS_IN

9.GNDD

10.V+5_V

11.V+5_V

12.COMP_DET

13.SDA

14.SCL

1.V+5R6_EV

2.V+5R6_EV

3.V+5R6_EV

4.GNDD

5.GNDD

6.GNDD

7.RYAC

JA2004

CN2003

OPT IN1IN1

JA2009

OPT OUT1

COAX

CN2002

IN2

JA2006JA2002

OPT IN2

CN2001CN2004

1.V+5_EV_1

2.POWLED

3.POWER KEY

4.GNDD

1.JOG_A

2.JOG_B

3.GNDD

1.VOLA

2.VOLB

3.GNDD

1.HP L

2.GNDHP

3.HP R

4.GNDHP

5.AMUTE

6.XHPDET

7.XMICDET

8.V-7_A

9.GNDA

10.GNDA

11.V+7_A

12.GNDA

13.MICOUT

14.NC

15.NC

CN8002

JA8003

JP8001

CN8001

2.GNDUSB

1.V+UN_USB

(CUXJ,JXJ)

(SYXJ8,DLXJ,FXJ)

CUXJ

AXX7282-

SYXJ8

JXJ

DLXJ,FXJ

TUNER

AXX7283-

MODEL

ADX7817-

Y0028

*1.25mm

Y0024

Y0027

*1.25mm

CUXJ

SC-99 SC-97

SC-LX89 SC-LX79 SC-LX89-K SC-LX79-K

REK1154(10A/125V)

AEK1061(T5A L/250V) AEK1061(T5A L/250V) DEK1045(T10A L/250V)

AEK7078(10A/125V)

REK1139(T2A H/250V) REK1104(T4A H/250V) REK1104(T4A H/250V) REK1139(T2A H/250V)

REK1139(T2A H/250V)

AEK1061(T5A L/250V) AEK1061(T5A L/250V) AEK1061(T5A L/250V)

REK1151(6A/125V)

REK1143(1.25A/125V)

REK1143(1.25A/125V) AEK7073(T1A L/250V) AEK7073(T1A L/250V) AEK7073(T1A L/250V)

AEK7072(T800mA L/250V) AEK7072(T800mA L/250V) AEK7072(T800mA L/250V)

REK1142(1A/125V)

REK1143(1.25A/125V)

REK1143(1.25A/125V) AEK7073(T1A L/250V) AEK7073(T1A L/250V) AEK7073(T1A L/250V)

AEK7072(T800mA L/250V)

REK1143(1.25A/125V)

AEK7072(T800mA L/250V)

REK1143(1.25A/125V)

REK1143(1.25A/125V) AEK7073(T1A L/250V) AEK7073(T1A L/250V) AEK7073(T1A L/250V)

SC-LX89-S SC-LX79-S

ADG7118-A

ADG7119-A

ADG7120-A ADG7123-A ADG7121-A

ATS7478-A

ATS7474-A

ATS7479-A

ATS7475-A

ATS7481-A

ATS7477-A

ATS7479-A

ATS7475-A

ATS7480-A

ATS7476-A

SC-97

SC-99

SC-LX89-K

SC-LX89

SC-LX79-K

SC-LX79 SC-LX79

APM7009APM7009APM7009-

APM7009APM7011-

AXD7725-

WRAPPED TAPE

39.GNDD

38.AMPTEMP

37.XFANERR

36.IRIN

35.TEMPERR

34.XBERR

33.XDCERR

32.XOLERR

31.GNDD

30.GNDD

29.GNDD

28.GNDD

27.GNDD

26.232CDET

25.EV232TX5

24.EV232RX5

23.232EV

22.XSMUTE

21.LOWPOW

1.GNDD

39.V+5R6_EV

CN602CN603

5.GNDD

4.XBERR

3.TEMPERR

2.XDCERR

1.IRIN

29.V+5R6_EV

28.V+5R6_EV

27.GNDD

26.GNDD

25.XFANERR

24.FANCTLL

23.FANCTLH

22.EXSO

21.EXSCK

20.EXOE

19.EXST

18.GNDD

17.XOLERR

16.AMPTEMP

15.IRMUTEA

14.IRMUTESB

13.IRMUTEFH

12.NC

11.RYFW

10.GNDD

9.GNDD

8.RYFR

7.RYCSR

6.RYFWFH

5.RYSB

4.GNDD

3.12VTRG1

2.12VTRG2

1.12VERR

CN7951

CN7952

5.USBPOW

4.XUSBERR

3.D+

2.D-

1.GNDD

CN9202

5.CEC_IO

4.XVDDERR

3.GNDD

2.GNDD

1.GNDD

9.AMPTEMP

10.XSMUTE

11.LOW_P

12.ACRY

13.WUSBPOW

14.XNETRST

15.NETPOW

16.DVCPOW

17.XEMRST5

18.232POW

29.IRIN

30.TEMPERR5

31.XBERR

32.XDCERR

33.XOLERR

34.GNDD

35.GNDD

36.GNDD

37.GNDD 38V+5_EV

39.V+5_EV

1.GNDD

2.XVDDERR

3.GNDD

4.XRESET

5.232CDET

6.EV232TX5

7.EV232RX5

8.232EV

19.EVSI5

20.EVSO

21.EVSCK

22.HOTPLUG

23.CECIO

24.EVREQI5

25.EVREQO5

26.NETWOL

27.XFANERR

28.XWUSBERR

5.CEC_IO

4.XVDDERR

3.GNDD

2.GNDD

1.GNDD

except SC-89

SC-LX89-S SC-LX79-S

SC-99 SC-97

SC-LX89 SC-LX79 SC-LX89 SC-LX79 SC-LX89 SC-LX79

SC-LX89-K SC-LX79-K

AXD7725-

AXD7726-

APM7011-

APM7011APM7011-

iPod Cable

SC-LX89

APM7011- AXD7725-

SC-LX79

SC-LX89-S

SC-LX79-S

AXD7725-APM7011-

39.GNDD

1.V+5_EV

CN9701 CN9702

30 30

3030

CN3784 CN3782

19.V+5_HD

18.V+5_F

17.GNDD

16.GNDD

15.HOT_PLUG_DETECT

14.SDA_SINK

13.SCL_SINK

12.RFXC-

11.GNDD

10.RFXC+

9.RFX0-

8.GNDD

7.RFX0+

6.RFX1-

5.GNDD

4.RFX1+

3.RFX2-

2.GNDD

1.RFX2+

OUT

JA3602JA3601

MONITOR

20.ACRY

19.WUSBPOW

18.XNETRST

17.NETPOW

16.DVCPOW

15.XEMRST5

14.232POW

13.EVSI5

12.EVSO

11.EVSCK

10.GNDD

9.CECIO

8.EVREQI5

7.EVREQO5

6.NETWOL

5.XWUSBERR

4.GNDD

3.GNDD

2.V+5R6_EV

1.V+5R6_EV

DVR SATDVR INOUT

OUT

28.GNRDDAS

27.EX2 OUT

26.GNDDAS

25.EX2L OUT

24.GNDDAS

23.ZR OUT

22.GNDDAS

21.ZL OUT

20.GNDDAS

19.FR OUT

18.GNDDAS

17.FL OUT

16.GNDDAS

15.SW1 OUT

14.GNDDAS

13.C OUT

12.GNDDAS

11.SR OUT

10.GNDDAS

9.SL OUT

8.GNDDAS

7.EX1R OUT

6.GNDDAS

5.EX1L OUT

4.GNDDAS

3.HDZR OUT

2.GNDDAS

1.HDZL OUT

28.GNDDAS

27.EX2R OUT

26.GNDDAS

25.EX2L OUT

24.GNDDAS

23.EX1R OUT

22.GNDDAS

21.SR OUT

20.GNDDAS

19.SW1 OUT

18.GNDDAS

17.FR OUT

16.GNDDAS

15.FL OUT

14.GNDDAS

13.C OUT

12.GNDDAS

11.SL OUT

10.GNDDAS

9.EX1L OUT

8.GNDDAS

7.ZR OUT

6.GNDDAS

5.ZL OUT

4.GNDDAS

3.HDZR OUT

2.GNDDAS

1.HDZL OUT

20.V+6_AD

1.SW2 OUT

24.PRESEL(W/XF)

23.V+7_A

22.V-7_A

21.GNDA

20.GNDA

19.GNDA

18.SR OUT

17.GNDA

16.SL OUT

15.GNDA

14.FR OUT

13.GNDA

12.C OUT

11.GNDA

10.FL OUT

9.GNDA

8.FH/FWR OUT

7.GNDA

6.FH/FWL OUT

5.GNDA

4.SBR OUT

3.GNDA

2.SBL OUT

1.GNDA

24.V+12FHL

23.V-12FHL

22.SR+

21.SR-

20.GNDSR

19.V+12SR

18.V-12SR

17.SL+

16.SL-

15.GNDSL

14.V+12SL

13.V-12SL

12.SBR+

11.SBR-

10.GNDSBR

9.V+12SBR

8.V-12SBR

7.SBL+

6.SBL-

5.GNDSBL

4.V+12SBL

3.V-12SBL

2.GNDCH

1.GNDCH

24.FR+

23.FR-

22.GNDFR

21.V+12FR

20.V-12FR

19.FL+

18.FL-

17.GNDFL

16.V+12FL

15.V-12FL

14.C+

13.C-

12.GNDC

11.V+12C

10.V-12C

9.FHR+

8.FHR-

7.GNDFHR

6.V+12FHR

5.V-12FHR

4.FHL+

3.FHL-

2.GNDFHL

1.GNDFHL

CN9502

JA9601JA1602 JA9602 JA9607

IN7

JA9603 JA9605JA9604 JA9606JA1601

BD ININ1 IN2 IN3 IN6OUT 2OUT 1 IN4

JA1603

HDZONE OUT3

3,SHIELD

2.GNDD

1.V+6R3_ROKU

8.GNDD

7.V+6R3_ROKU

6.GNDD

5.USBPOW

4.XUSBERR

3.D+

2.D-

1.GNDD

SAT

JA2501

DVR/BDR

IN OUT

DVR/BDR

JA2505

ININ

JA3102

AXX7293

NETWORK MODULE

CN9203

CN9204

EXT. ANT.

DLXJ

SC-LX89 SC-LX79 SC-LX89 SC-LX79

Y0023

ADX7513-

ADH7048-

ADH7049-

30.V+5R6

_DDD

1.DIRDATO

30.MSPDIF

1.NC

20.V+6_AD

19.V+6_AD

18.GNDAD

17.GNDAD

16.V+12_A

15.V+12_A

14.GNDA

13.GNDA

12.V+12_A

11.V+12_A

10.GNDDAS

9.FR IN

8.GNDDAS

7.FL IN

6.GNDDAS

5.SBR IN

4.GNDADS

3.SBL IN

2.GNDDAS

1.SW2 OUT

1.MSPDIF

2.XDIRRST

3.UNLK

4.DIRINT

5.XTLO

6.DIRCS

7.DSPSO

8.DSPSCK

9.DSPSI

10.F96K

11.F192K

12.XADRST

13.GNDD

14.ZMCLK

15.GNDD

16.ZBCK

17.ZFADA

18.ZLRCK

19.XZ2DARST

20.ZDZF

21.GNDD

22.HDZ_MCLK

23.GNDD

24.HDZBCK

25.HDZFADA

26.HDZLRCK

27.XHDZ_DARST

28.HDZ_EMPH

29.HZDZF

30.NC

1.V+5R6_DDD

2.V+5R6_DDD

3.GNDD

4.GNDD

5.V+5_D

6.V+5_D

7.DAC0DET

8.DARST

9.I2CSW

10.SDA_DAC

11.SCL_DAC

12.GNDD

13.BADA

14.SADA

15.CADA

16.FADA

17.GNDD

18.DABCK

19.DALRCK

20.EX1ADA

21.LFE2ADA

22.EX2ADA

23.GNDD

24.DIRMCKI

25.GNDD

26.DIRMCKO

27.GNDD

28.DIRBCK

29.DIRLRCK

30.DIRDATO

ZONE3ZONE2

JA6701

EX2EX1

1.NC

2.HPRY

3.NC

4.TUIREQ

5.TURST

6.TUSDA

7.TUSCL

8.GNDD

9.DET+6AD

10.GNDD

11.GNDD

12.VLSCK

13.VLSO

14.Z2VLSO

15.Z3MUTE

16.Z2MUTE

17.SBMUTE

18.AMUTE

19.PRESEL

20.LSSN

21.XMICDET

22.PRELSSN

23.XHPDET

24.FHMUTE

EXCEPT

JXJ MODEL

(SC-99, SC-LX89 only)

DIGITAL MAIN ASSY (99 : AWX2013) (97 : AWX2017) (LX89 : AWX2014) (LX79 : AWX2018)

COMPOSITE ASSY (99/LX89 : AWX2085) (97/LX79 : AWX2086)

BUFFER GND_M ASSY (AWX1783)

IR INTERFACE_M ASSY (AWX1776)

D AMP ASSY (99 : AWH7104) (97 : AWH7108) (LX89 : AWH7105) (LX79 : AWH7109)

FB CONNECT ASSY (AWX1841)

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.

designation.

with same parts (safety regulation authorized) of identical

mark found on some component parts should be replacedThe

1/12 -G12/12

( )

2/2

AUDIO ASSY (99 : AWX2076) (97 : AWX2080) (LX89 : AWX2077) (LX79 : AWX2081)

FRONT HDMI USB ASSY (99/97 : AWX2115) (LX89 : AWX2116) (LX79 : AWX2118)

USB RECT_M ASSY (99/97 : AWX2165) (LX89/LX79 : AWX2166)

MULTI CH IN ASSY (99 : AWX2159) (LX89 : AWX2160)

USB DAC ASSY (99 : AWX2056) (LX89 : AWX2057)

INTERFACE_M ASSY (99/97 : AWX2120) (LX89/LX79 : AWX2121)

COMPONENT ASSY (99 : AWX2105) (97 : AWX2108) (LX89 : AWX2106) (LX79 : AWX2109)

MIC HP ASSY (99/97 : AWX2048) (LX89/LX79 : AWX2049)

DISPLAY ASSY (99/97 : AWX2026) (LX89/LX79 : AWX2027)

VOL ASSY (AWX2029)

POWER SW ASSY (AWX2030)

ENCODER ASSY (AWX2051)

IR BUFFER_M ASSY (99/97 : AWX2093) (LX89 : AWX2094) (LX79 : AWX2096)

PRIMARY ASSY (99/97 : AWX2038) (LX89/LX79 : AWX2039)

PRIMARY SHIELD ASSY (97/LX79 : AWX1820)

REG ASSY (99 : AWX2149) (97 : AWX2152) (LX89 : AWX2150) (LX79 : AWX2153)

B DIODE ASSY (99/97 : AWX2130) (LX89/LX79 : AWX2131)

PRE BRIDGE_M ASSY (AWX1822)

A-DAC BRIDGE ASSY (AWX2198)

D-AUDIO BRIDGE ASSY (AWX2196)

D-DAC BRIDGE ASSY (AWX2197)

FRONT BRIDGE ASSY (AWX1833)

DISPLAY BRIDGE ASSY

(99/97 : AWX2155)

(LX89/LX79 : AWX2156)

F-IN BRIDGE ASSY

(AWX2158)

MCH BRIDGE ASSY (99/LX89 : AWX1840)

A REG BRIDGE ASSY (99/97 : AWX2132) (LX89/LX79 : AWX2133)

MIC HP GUARD ASSY (AWX2052)

FAN CONNECT ASSY (AWX2055)

BIND DM CABLE_M ASSY (AWX1846)

BIND B CABLE ASSY (AWX1826)

FFC GUARD_M ASSY (AWX1821)

VREG GUARD ASSY (AWX2053)

PANEL GUARD ASSY (AWX2054)

AM AN AO AP

1/2 -

( )

CONNECT_M ASSY (99/97 : AWX2162) (LX89/LX79 : AWX2163)

1/6 -

( )

6/6

DAC HIGH ASSY (99 : AWX2063) (97 : AWX2067) (LX89 : AWX2064) (LX79 : AWX2068)

1/4 -

( )

4/4

IR REG_M ASSY (99 : AWX2124) (97 : AWX2127) (LX89 : AWX2125) (LX79 : AWX2128)

4. BLOCK DIAGRAM

4.1 OVERALL WIRING DIAGRAM

6 7 8

SC-99

6 7 8

COAX2(SAT/CBL)

OPT IN1(TV)

OPT IN2(DVR/BDR)

COAX1(DVD)

IC2009 8ch DAC ES9016S

TX1

JA2002

JA2004

JA2006

MIC

SAT/CBL

PREOUT FL/FR

PREOUT SW1

PREOUT SL/SR

PREOUT SBL/SBR

DVR OUT

SP FL/FR

SP C

SP SL/SR

SP SBL/SBR

SW DownMix

JA3471

IC2701, IC2702

JA2505

SW PRE Amp IC2751

<<POWER AMP>>

JA2504

JA3476

JA4101

JA4301

JA4501

JA3101

JA3201

PREOUT C

JA3103

DVR

JA2501

ZONE3 OUT

JA3206

HEADPHONE Amp

IC6821, IC6841

IC6801

IC6861, IC6881

IC6901, IC6921

<<PREOUT>>

<<AUDIO ZONE OUT>>

MIC Amp IC3471

IC2032

(ZONE2)

LPF

I2S

A/D BUFFER IC2033, IC2035

OPT OUT1

IC2801

JA2009

JA2505

PREOUT TML/TMR

JA3201

IC3221 PRE SELECTOR

SP TML/TMR

JA4901

TUNER Module

IC2003 DIR&DIT AK4118AEQ

IC3271

IC7491

SELECTOR

IC2027 ADC PCM1804DB

I2S(DATA)

I2S(BCK,LRCK)

SW PRE Amp IC2751

JA3102

PREOUT SW2

PREOUT EX1L/EX1R

JA3202

IC3272

(FL,FR)

IC7451, IC7471

SP EX1L/EX1R

JA5101

ZONE2 ZONE3

ZONE3

ZONE2 OUT

JA6701

IC2026 ZONE2 DAC AK4388ET

ARC

IC2006

BUFFER

IC2007

BUFFER

I2S I2S

IC2010 8ch DAC ES9016S

I-V

LPF

X2001

80 MHz

OSC

(Zone2 L,R)

(S&FH DATA)

(BCK, LRCK, F&C DATA)

(BCK, LRCK)

Except Japanese Model

IC2034

IC2031

IC2029

IC2030IC2037

IC2028

IC2002

IC2010

IC2009

V+6V_ADAD

IC2026, IC2027

IC2009

, IC2010, X2001

IC2027

IC2009

IC2010

V+5V_D

IC2003,IC2004, IC2005,IC2006, IC2007

IC2001, IC2003

1.2V

3.3V

<<POWER AMP INPUT BUFFER>>

LPF

IC2038 HD ZONE DAC AK4388ET

I2S

IC2039

(HD ZONE2)

(HD Zone L,R)

IC2038,

IC3101

IC3151

IC3201

IC3251

IC2501 Selector / Volume / PRE Amp BD3473KS2

IC3273 Selector / Volume / PRE Amp BD3473KS2

MULTI IN L/R

MULTI IN C/SW

MULTI IN SBL/SBR

JA7761 JA7762

MULTI IN SL/SR

JA7761

JA7762

SC-99,SC-LX89 only SC-99, SC-LX89 only

IC2011, IC2012, IC2021(SR,EX1R) IC2013, IC2014, IC2022(FR,SW1) IC2015, IC2016, IC2023(C,FL) IC2019, IC2020, IC2025(EX1L,SL)

IC2051, IC2052, IC2053 (SBL,SBR) IC2041, IC2042 (SW2) IC2017, IC2018, IC2024 (EX2L,EX2R)

(SBL,SBR,SW2,EX2L,EX2R)

(SB, EX2, SW2 DATA)

IC2036

X2001

3.3V

V+5R6_DDD

(C,SW1,SL,SR,EX1L,EX1R)

EX1

SW1

SW2 DownMix

IC2703, IC2704

(EX2L,EX2R)

)

(SBL,SBR,SW2)

SW2

EX2

IC6761

JA3202

PREOUT EX2L/EX2R

IC2802

BD3812F

Z2VOL

DVR

(SW) (C/SW)

Refer to the “4.4 BLOCK DIAGRAM FOR DIGITAL MAIN AUDIO BLOCK”

TMEX1

I-V

LPF

DAC HIGH ASSY

MIC HP ASSY

AUDIO ASSY

D AMP ASSY

IR BUFFER_M ASSY

DIGITAL MAIN ASSY

MULTI CH IN ASSY

MCH BRIDGE ASSY

4.2 BLOCK DIAGRAM FOR AUDIO BLOCK

2 3 4

SC-99

2 3 4

4.3 BLOCK DIAGRAM FOR DIGITAL MAIN VIDEO BLOCK

20 MHz

TMDS DIGITAL VIDE O CEC ANALOG VIDEO CLOCK DIGITAL AU DIO

ETHERNET

IC9602

HDMI SW

Silicon Image

"SiI9589-3"

Deneb

IC909

Video Decoder

Analog

Devices

"ADV7181C"

EVENT ucom

RENESAS

IC102

SDRAM

64Mb

IC603

Gate Array

SEIKO EPSON

"PE7008A"

Media Processor

"AXX7293"

IC9202

Serial FLASH

128Mb

IC9206

iPod

Authentication

APPLE

(RENESAS)

"H337S3959"

2 2 2

36.864MHz

28.63636MHz

HDMI IN6

HDMI IN3

HDMI BDIN

(IN4)

HDMI IN1

HDMI IN2

HDMI IN5

COMPOSITE

COMPONENT

COMPONENT-Y

COMPOSITE

COMPONENT-Pb COMPONENT-Pr

USB(FRONT)

CEC

HDMI OUT1

22.5792MHz

POWER SUPPLY BLOCK DIAGRAM

(DCDC,LDO)

24.576MHz

HDMI IN7

/MHL

HDMI ZONE /OUT3

24.576 MHz

IC1602

4k2k Upscaler

"MN864787"

IC101

uCOM

"R5S726B0D216FP"

IC9002

DSP

CS49844A

IC9001 SDRAM-166 64Mb(8Mx16)

IC9004

SeriFlash

32Mb

IC103

SerialFLASH

64Mb

12 MHz

27MHz

YCbCr422 16bit

IC9703

DSP

D808K013DPTP456

IC9702

SDRAM-166

64Mb(8Mx16)

IC9704

SeriFlash

16Mb

YCbCr422 16bit

For PQLS

DDC

Buffer

IC1204

IP.SCALER

Marvell

"88DE2750"

IC1212

DDR2

512Mb

IC1609

HDMI SW

"MN864788"

27MHz

HDMI OUT2

24 MHz

LAN PHY

Wi-Fi

COMPOSITE ASSY

COMPONENT ASSY

FRONT HDMI USB ASSY

DISPLAY ASSY

COMPOSITE ASSY

COMPONENT ASSY

DIGITAL MAIN ASSY

6 7 8

SC-99

6 7 8

SPDIF AMCLK I2S

SYSCLK

FLG I2S BCK,LRCK

HD ZONE DAC SELECTOR

IC9006

SEL(VHC157)

SEL (7SZ126)

IC1512

IC2007 OR(VHC32)

IC2006 AND (VHC08)

IC2027IC2027

ADCADC

PCM1804DBPCM1804DB

IC2003IC2003

DIRDIR

AK4118AEQ8AK4118AEQ8

XTIXTI

MCKO1MCKO1

BICKBICK

LRCKLRCK

SDTOSDTO

DAUXDAUX

MSPDIF

COAX 1 COAX 2

OPT 1 OPT 2

27MHz

IC2010IC2010

DACDAC

ES9016ES9016

FL/FRFL/FR

C/LFEC/LFE

SL/SRSL/SR

FHL/FHRFHL/FHR

IC1602IC1602

MN864787MN864787

CH0AMCLK

USBUSB

DACDAC

NSLR/NDSDFR

NBCK NLRCK NFDAT/NDSDFL

NC_LFE

IC9101 SEL(VHC157)

H:USBDAC L:DIR

24.0MHz

IC9703IC9703

2nd DSP2nd DSP

DA808K013DPTP456DA808K013DPTP456

ACLKR1 AFSR1 D1FDT AXR1[0] D1CDT AXR1[1] D1SDT AXR1[2] D1BWDT AXR1[3] D1HWDT AXR1[4] D1DMDT AXR1[5]

AHCLKX0

ACLKX0

AFSX0

AXR0[7]D2FDT AXR0[8]D2CDT AXR0[9]D2SDT

AXR0[10]D2BWDT AXR0[12]D2HWDT

AXR0[13]AMUTE

D2FDT/DSDFL

NET

POW

DIR

POW

DVC

POW

RYAC

XXTL0

AND (LCX08)

IC1804

SEL (VHC126)

IC1509

USBDMCK

HDMCK

DIRMCK

24.576MHz

22.5792MHz

SEL (VHC126)

IC1806

22PQLS DAZDB

24PQLS

AND(LCX08)

IC1804

D2MCLK

AND(VHC08)

IC1601

NMPNMP

AXX7293AXX7293

ZNET

D_HN_DSDFR

D2CDT/DSDFR D2SDT D2BWDT D2HWDT

D2LRCK

IC2026IC2026 Z2DACZ2DAC

FL/FRFL/FR

ZMCLK

DABCK DALRCK/DSDFL DAFDT/DSDFR

H: DIR

HDMI/NW HDMI/NW SELECTORSELECTOR

IC1501 SEL(VHC157)

DSPPASS

D2BCK

D2LRCK

D2FDT/DSDFL

DIRMCK

DUBCK

L: NET/HDMI

NETMCK

IC1511

×8 or x4 PLL

NETDSDMCK

AND (SH08)

IC1521

DSD28X56

P1_BCK P1_LRCK/DSDSL P1_HFDT/DSDFL

P1_CDTI/DSDLFE

P1_BDTI/DSDSR P1_DSDFR

D2B_BCK D2B_LRCK D2B_FDT

NMCK

UBBCK UBLRCK UBDATO

UBMCK

IC9002IC9002

1st DSP1st DSP

CS49844ACS49844A

DUBCK DULRCK DUDT

DAI3_SCK DAI3_LCK DAI3_D0

HN_CDTI/DSDLFE

HN_SDTI/DSDC

HN_BDTI/DSDSR

HN_DSDFR

DIRMCKI

IC1616 AND(VHC08)

DACDT

80MHz

SC-99,SC-LX89

only

DIRBCK DIRLRCK DIRDATO

SEL (LCX157)

IC1814

PHDZBCK PHDZLRCK PHDZFDT

PHDZMCLK

CH0ABCLK

CH0ALRCLK

CH0ASD0

CH0ASD1 CH0ASD2 CH0ASD3

CH0ASPDIF

P1_SDTI/DSDC

CH1ABCLK

CH1ALRCLK

CH1ASD0

Q6 Q5 Q4 Q0

D4 D1 D0

HDZBCK HDZLRCK HDZFDT

NSLR/NDSDFR

D2BCK

IC2038IC2038

HDZDACHDZDAC

FL/FRFL/FR

IC1516 SEL(VHC157)

DULRCK

IC2009IC2009

DACDAC

ES9016ES9016

SBL/SBRSBL/SBR

LFE2LFE2

ZONE-I2S (LR)

D2SW2DT

AXR0[11]

D2CDT/DSDFR

D_HN_BCK

HDZDACSEL

SEL (LCX157)

IC1818

H: NW/USB_DAC

L: HDMI

L: NETWORK

H: USB_DAC

AND(VHC08)

IC1603

D_HN_FDT/DSDFL

IC1815 SEL(VHC157)

NBCK NLRCK NFDAT/NDSDFL NC_LFE

P1_BCK P1_LRCK/DSDSL

P1_HFDT/DSDFL P1_CDTI/DSDLFE

P1_BDTI/DSDSR

P1_DSDFR

P1_SDTI/DSDC

IC1817 SEL(LCX157)

DIRBCK DIRLRCK DIRDATO

UBLRCK UBDATO

UBBCK

DUDT

IC1503 SEL(LCX157)

DSPB_BCK DSPB_LRCK DSPB_BDT

IC1507 SEL(WH157)

DSDXPCM

IC1515 SEL(LCX157)

DALRCK/DSDFL

DAFDT/DSDFR

DABCK

H : DSD L : PCM

DACDT

24.576MHz

DSD_LRCK

DAI1_SCK1

DAI1_D1

DAI1_LRCK1

DAI1_D0

DAI1_D2

DAI1_D3 DAI1_D4 DAI1_D5

HN_DSD_LRCK

HN_HFDT/DSDFL2

HN_SDTI/DSDFR

HN_CDTI/DSDSL

HN_SDTI/DSDC

HN_BDTI/DSDSR

HN_CDTI/DSDLFE

FR_PRE_ON

DAO1_MCLK DAO1_SCK1

DAO1_LCK1 DAO1_D0 D1FDT DAO1_D2 D1CDT DAO1_D1 D1SDT DAO1_D3 D1EX1DT DAO1_D4 D1EX2DT DAO1_D5 D1EX3DT

NETDSDMC

L:NETMCK

H:HDMI

IC9005 VHC4040

D_HN_BCK D_HN_LRCK

D_HN_FDT/DSDFL

HN_CDTI/DSDLFE

HN_SDTI/DSDC

HN_BDTI/DSDSR

HN_DSDFR

P1MCLK

D_HN_LRCK

HN_DIR_BCK

FMCLK

D2EXDT

DSP THROUGH PCM/DSD SWITCHING BLOCK

H : DSP THROUGH ROUTE

L : DSP ROUTE

MASTER CLOCK SELECTOR BLOCK

ZONE DAC SELECTOR

USB DAC ASSY

DAC HIGH ASSY

DIGITAL MAIN ASSY

HDMCK

USBDMCK

DSD_IN

4.4 BLOCK DIAGRAM FOR DIGITAL MAIN AUDIO BLOCK

2 3 4

SC-99

2 3 4

DVR

TV SAT

SH uCOMSH uCOM

"R5S726B0D216FP"

VDECVDEC

"ADV7181C"

LPF

LPF LPF

50 47

32 30

IC8301

NJW1328FH2

CDET

I2C

MONITOR OUT

DVR OUT

Y Pb Pr

IN1

IN2

(SC-99,LX89 only)

COMPONENT ASSY

COMPOSITE ASSY

DIGITAL MAIN ASSY

6 7 8

4.5 BLOCK DIAGRAM FOR VIDEO BLOCK

SC-99

6 7 8

V+3R3_MA

V+1R25_MA

V+2R5_MA

DVCPOW

NETPOW

V+1R2_HD

V+1R1_PA

DVCPOW

JA1601

DVCPOW

JA1602

JA1603

V+5_MHL

JA9607

JA9620

V+1R8_SC

V+1_SC

V+1R8_VD

V+3R3_DSP

DIRPOW

V+1_D1

DIRPOW

V+1R3_D2

V+3R3_OS

DIRPOW

V+1R2_NW

V+3R3_NW

NETPOW

V+2R5_NW

V+5_EV

V+5_DSP

DIRPOW

V+3R3_HHH(MA)

V+5R6_EV(DDD)

V+1R8_HHH

V+1R8_NW

NW Module AXX7293

IC101 SH2 R5S726B0D216FP

IC103 Serial Flash

IC102 SDRAM

IC603 Gate Array PE7008A

IC9002 CS49844A-CQZ

IC9001 SDRAM

IC9004 Serial Flash

IC909 VIDEO Decorder ADV7181CBSTZ

IC9515

1.25V LDO S-1172B1C-U5

IC9602 HDMI SW

SiI9589CTUC-3

IC1602 HDMI Tx MN864787

IC9511 5V LDO MM3529A50

IC9502

VARIABLE LDO

S-13A1A00-E6

IC9518 1V LDO S-1172B10

IC9508

2.5V LDO MM3529A25

V+5_HD

IC9505

1.8V LDO MM3529A18

X1501, X1502 XTAL

IC9408

3.3V DCDC MM3542BF

IC9403

1.1V DCDC Converter MM3543BH

V+3R3_DSP

IC9603 Current SW BD82065FVJ

IC451 3chDCDC Converter TPS65251RHA

IC9406 5V LDO MM3411A50

232C Mute Buffer

IC9703

DSP D808K013DPTP456

IC9702 SDRAM

IC9704 Serial Flash

IC9407

2.5V LDO MM3529A25

IC1615 5V LOAD SW BD2242G-G

HDMI OUT1

HDMI OUT3/HDZONE

IC1605 5V LOAD SW BD2242G-G

SMPS

Other Circuits

V+5R6_EV

Refer to MAIN Transformer part

CN9501

CN9502

HDMI IN7/MHL

IC9523

1.2V Ripple Blocker MIC94325YMT

IC1609 HDMI TX SW 4in2 MN864788

IC1610 5V LOAD SW BD2242G-G

HDMI OUT2

IC1204 VIDEO PROCESSOR 88DE2750

IC1212 DDR2 for Scaler

IC9402 1V LDO S-1172B10

IC9404

1.8V LDO MM3529A18

IC9513

3.3V LDO

NJM2846DL3-33

IC9514

1.3V Ripple Blocker MIC94325YMT

IC9512

3.3V LDO

NJM2872BF33

IC9504 5V LDO MM3529A50

EVENT CPU

V+5_EV

IC6001

CN7903

FFC

CN6001

V+5_EV

V+5R6_EV

CN7954 CN7004

CN7952

CN603

IC8601 RS232C

232POW

IC2003 DIR + DIT Peripheral AK4118AEQ

IC2026 Zone2 DAC AK4388EF

IC2027 A/D Converter PCM1804DB

IC2031

3.3V LDO NJM2872BF33

C N 2 0 0 4

V+3R3_DA

V+5_D

C N 3 7 9 1

V+6_AD

IC2034 5V LDO NJM2845DL1-05

V+5_D

V+3R3_D

IC2029

3.3V LDO NJM2872BF33

IC2030

3.3V LDO S-1172B33-E6

IC2009 SUB DAC ES9016S

V+3R3_A

IC2010 MAIN DAC ES9016S

V+3R3_DA2

IC2037

1.2V LDO S-1172B12-E6

V+1R2_A2

IC2028

1.2V LDO S-1172B12-E6

V+1R2_A

CN8301

CN901

IC7902 5V LDO MM3411A50

IC2038 HDZone DAC AK4388EF

IC2040

3.3V LDO S-1172B33-E6

V+3R3_DA3

CN601

FFC

CN7902

CN9701

CN2001

CN3784

CN3783

IC2036

3.3V LDO NJM2872BF33

V+3R3_DAOSC

X2001 XTAL

CN1984

CN5501

USBDPON

IC5503 USBDAC CM6631

Q5622 FET SW RTQ040P02

SC-99, SC-LX89 only

IC2002

3.3V LDO NJM2881F33

FRONT HDMI USB ASSY

DISPLAY ASSY

PRIMARY ASSY

DAC HIGH ASSY

INTERFACE_M ASSY

COMPONENT ASSY

CONNECT_M ASSY

DISPLAY BRIDGE ASSY

USB DAC ASSY

D-DAC BRIDGE ASSY

DIGITAL MAIN ASSY

2 3 4

4.6 BLOCK DIAGRAM FOR POWER BLOCK (1)

2 3 4

SC-99

MAIN

Transformer

RECTIFIER D7601

IC7601 NJM78M05FA

RECTIFIER

D7611-7613,C7611

IC7611 NJM78M12FA

CN7601

V+12A

V-12A

V+6AD

V+5V

AC1,AC2

-VF

CN7502

V+12TRG

for FL

V+12_A

V-12_A

TUNER MODULE

CN3902

FFC

V+5_T

V+7_A V-7_A

V-12_A

V+12_A

V+5_DA

V+5_V

CN3001 CN3792

CN3791 CN2004

FFC

CN8301

CN901

V+5_V

RECTIFIER D7521,7522

CN7501

CN7602

CN7721

CN7683

CN7681

CN7002

CN7603

CN7724

CN2503

CN7684

CN7722

CN7682

CN7007

CN7005 CN7008

CN7662 CN7661

CN7664

CN7663

FFC

CN3472

V-7_A

V+7_A

V+12TRG

AC1,AC2

-VF V+5_V

CN7201

CN7241CN7271CN7291

FAN

-B+15V

V+8_MD

V-8_MD

V+FAN V-FAN

V+12DF

V-12DF

CN7400

-B

CN4001CN4002CN4003

V+64V V-64V

VSS+12V

V+12V

V-12V

V+12RY

V-12RY

V+12** V-12**

CN3801,3802

CN6802,6803

CN6801

CN3810-3890

CN4*00

CN6952 CN3051

CN6951

V+7_A V-7_A

CN7401

IC4*03 NJM2830U1-12

Driver IC VCC

CN5932

CN5931

CN5775

IC2183

NJM2845DL1-05

RECTIFIER D3651

CN3653

CN3652

V+5_USB

USB +5V Supply

V+UN_USB

HDMI V+5MHL Supply

JP8001

IC9603 BD82065FVJ (Load SW)

JA9607

CN9502

CN8001

IC8004 BD9329EFJ (DC-DC Converter)

JA8001

IC8002 BD82065FVJ (Load SW)

V+5_MHL

IC7241 NJM78M15FA

RECTIFIER

D7400,7401

V+6V

V-6V

IC4008

NJM78M06DL1A

IC4009

NJM79M06DL1A

IC4003

NJM78M05DL1A

V+5V_S

RECTIFIER D7241-7244

IC7271 NJM78M08FA

IC7272 NJM79M08FA

RECTIFIER D7271-7274

RECTIFIER D7251-7254

IC7251 NJM78M12FA

IC7252 NJM79M12FA

IC7273 NJM78M15FA

CN7251

CN4004

Q7211 Q7212

V+15VDD

IC4002

NJM2830U1-12

V+12VD

JP7725

RECTIFIER

D7621-7623,C7621

JP5775

JP3001

IC7521 NJM78M06FA

IC7501 NJM78M12FA

IC7502 NJM79M12FA

RECTIFIER D7501-7504

Q3002

Q3001

Q3901

Except Japanese Model

JP8401

JP6001

AUDIO ASSY

DAC HIGH ASSY

FRONT HDMI USB ASSY

USB RECT_M ASSY

INTERFACE_M ASSY

COMPONENT ASSY

MIC HP ASSY

DISPLAY ASSY

IR BUFFER_M ASSY

IR INTERFACE_M ASSY

D AMP ASSY

REG ASSY

IR REG_M ASSY

B DIODE ASSY

FB CONNECT ASSY

PRE BRIDGE_M ASSY

A-DAC BRIDGE ASSY

FRONT BRIDGE ASSY

F-IN BRIDGE ASSY

A REG BRIDGE ASSY

FAN CONNECT ASSY

DIGITAL MAIN ASSY

6 7 8

4.7 BLOCK DIAGRAM FOR POWER BLOCK (2)

SC-99

6 7 8

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

No Power

Error Indications ?

Stand by

Yes

Refer to the

“5.2 [4] Error Indocations”

Jump to “No FL DISPLAY”

Fuse FU4 OPEN ?

Yes

Diagnose or replace PRIMARY ASSY

Check PRIMARY ASSY JP51-1,2,3pin or DIGITAL MAIN ASSY CN9501-1,2,3pin +5.6V

Check DIGITAL MAIN ASSY CN601-1,2pin +5.6V

Check +5.6V line on DIGITAL MAIN ASSY or replace DIGITAL MAIN ASSY

Check DISPLAY ASSY C6017 +3.3V

Replace DISPLAY ASSY or replace L6001

Yes

Check DISPLAY ASSY L6001 +5.0V

Replace DISPLAY ASSY or replace IC6002

Check DISPLAY ASSY IC6001-10pin +4.9V (XRESET)

Check the signal path of XRESET or replace DISPLAY ASSY

Check DISPLAY ASSY IC6001-32pin (POWKEY)

HL when press power key

Check the signal path of POWKEY

Check DISPLAY ASSY CN6001-16pin (DVCPOW) LH when press power key

Check the signal path of DVCPOW

Check DISPLAY ASSY CN6001-12pin (ACRY) LH when press power key

No Problem

Replace DISPLAY ASSY

Check the signal path of ACRY

Check PRIMARY ASSY JP51-7pin (ACRY) LH when press power key

Does RY71 turn on when press power key ?

Remove AC code and remove CN9501. Insart AC code and check JP51-1,2,3pin, +5.6V

Diagnose or replace PRIMARY ASSY

Diagnose the power supply path of V+5R6_EV after PRIMARY ASSY

Yes

Check DISPLAY BRIDGE ASSY CN7902-38,39pin +5.6V

Replace FFC (DIGITAL MAIN ASSY to DISPLAY BRIDGE ASSY)

Check DISPLAY BRIDGE ASSY CN7903-1,2pin +5.0V CN7903-36pin +4.9V(XRESET)

Check DISPLAY ASSY CN6001-38,39pin +5.0V CN6001-4pin +4.9V(XRESET)

Replace DISPLAY BRIDGE ASSY, D7901, IC7901, IC7902 or IC7903

Replace FFC (DISPLAY BRIDGE ASSY to DISPLAY ASSY)

Yes

No No Problem

Replace DISPLAY ASSY

Yes

Check the signal path of ACRY DISPLAY ASSY DISPLAY BRIDGE ASSY  DIGITAL MAIN ASSYPRIMARY ASSY

Check the circuits around RY71 or replace PRIMARY ASSY

Check DIGITAL MAIN ASSY CN601-16pin (DVCPOW) LH when press power key

Check the signal path of DVCPOW DISPLAY ASSY DISPLAY BRIDGE ASSY  DIGITAL MAIN ASSY

Diagnose or replace DIGITAL MAIN ASSY

2 3 4

5. DIAGNOSIS

5.1 DIAGNOSIS FLOWCHART

NO POWER

SC-99

2 3 4

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

No FL DISPLAY

Dimmer ?

"FL OFF" LED light on ?

Yes No

JP6001 6,7pin 4.3Vac

Yes

V6001(FL Display) damage

Yes

Replace V6001 (FL Display)

Check the power supply path of FL AC1 and AC2 or replace DISPLAY ASSY

Check DISPLAY ASSY

JP6001 5pin -30V (VF) 4pin +5V

Yes

Check the path of V+5_V,-VF (Signal path is same as FL AC1 and AC2)

All NG

Replace MAIN TRANS

Diagnose or replace NG ASSY

Other results

Diagnose the circuits (around D6010) or replace DISPLAY ASSY

Diagnose around IC6003

Replace IC6003 or DISPLAY ASSY

No Problem

Replace V6001(FL Display) or DISPLAY ASSY

Check DISPLAY ASSY

Yes

Replace IC6003 or DISPLAY ASSY

Diagnose REG ASSY (around IC7601:V+5_V, D7625, D7267:-VF) or replace REG ASSY

Check the path of FL AC1 and AC2 DISPLAY



F-IN BRIDGE INTERFACE_M 

FB CONNECT



FRONT BRIDGE REG 

MAIN TRANS

Check DISPLAY ASSY V6001(FL Display) 1,62pin 4.3Vac

Check DISPLAY ASSY IC6003(FL uCOM) 56pin +5.0V (V+5_V),

IC6003(FL uCOM) 51pin (OSC1)

52pin +5.0V (XFLRST)

Check the path of V+5_V or XFLRST or replace DISPLAY ASSY

Yes

Oscillating 2MHz

6 7 8

NO FL DISPLAY

SC-99

6 7 8

EXT STEREO mode : 2ch signals are distributed to all channels. OPTIMUM Surr mode : Surround mode of headphones



No sound from speakers (Single channel - Check only the signal path of the relevant channel. Plural channels

- There may be troubles with power source, control signals: MUTE, DET and others. Bad connection of cables and connectors should be also considered.)

No sound only from front channels (L/R 2 channels)

The sound of the relevant channel does not come from Preout.

Sound comes from speakers in Pure Direct by applying a signal to analog input terminal.

The signal of the relevant channel exists in PRE BRIDGE_S ASSY.

Check the path of the relevant channel in AUDIO ASSY.

Check the signal path of the relevant channel in IR BUFFER_M ASSY, or check the path of the power supply to the relevant channel.

In EXT STEREO, the signal of the relevant channel does not exist in A-DAC BRIDGE ASSY.

Check the path of the relevant channel in AUDIO ASSY.

Check the signal path of the relevant channel in IR INTERFACE_M ASSY, or check the path of the power supply to the relevant channel.

The signal (DATA, BCK, LRCK) of the relevant channel does not exist in D-DAC BRIDGE ASSY.

Check the path of the relevant channel in DAC HIGH ASSY.

Check the path of the relevant channel in D AMP ASSY.

Check the path of the relevant signal in DIGITAL MAIN ASSY.



No sound only from Preout (Single channel - Check only the signal path of the relevant channel. Plural channels

- There may be troubles with power source, control signals: MUTE, DET and others. Bad connection of cables and connectors should be also considered.)

No sound only in DVROUT or PHONO - Check the relevant path in AUDIO ASSY .

No sound from speakers additionally

Check the path of the relevant channel in AUDIO ASSY.

In EXT STEREO, the signal of the relevant channel does not exist in A-DAC BRIDGE ASSY.

Check the path of the relevant channel in AUDIO ASSY.

The signal (DATA, BCK, LRCK) of the relevant channel does not exist in D-DAC BRIDGE ASSY.

Check the path of the relevant channel in DAC HIGH ASSY.

Check the path of the relevant signal in DIGITAL MAIN ASSY.

No No No

Yes



No sound only in COAX and OPT input (Single channel - Check only the signal path of the relevant channel.

Plural channels - There may be troubles with power source, control signals: MUTE, DET and others. Bad connection of cables and connectors should be also considered.)

Check the path of the relevant channel in DAC HIGH ASSY.

Check the path of the relevant signal in DIGITAL MAIN ASSY.

Yes

Check the path of the relevant channel in DAC HIGH ASSY.

Yes

Apply a signal to analog input terminal but not output from preout and SPEAKER in AutoSurr.

Return to COAX and OPT input but DIRDATO, DIRBCK, DIRLRCH and DIRMCKO of D-DAC BRIDGE ASSY are not existed.

2 3 4

NO SOUND (Except for troubles caused by setting and others)

2 3 4

SC-99



No sound only in AutoSurr in analog input (Single channel - Check only the signal path of the relevant channel.

Plural channels - There may be troubles with power source, control signals: MUTE, DET and others. Bad connection of cables and connectors should be also considered.)

Apply a signal to COAX and OPT input terminal but not output from preout and SPEAKER in AutoSurr.

Check the path of the relevant channel in DAC HIGH ASSY.

Return to AutoSurr of analog input but DIRDATO, DIRBCK, DIRLRCK, DIRMCKI and DIRMCKO of D-DAC BRIDGE ASSY are not existed.

Check the path of the relevant channel in DAC HIGH ASSY.

Check the path of the relevant signal in DIGITAL MAIN ASSY.



No sound from HEADPHONES (Single channel - Check only the signal path of the relevant channel. Plural channels -

There may be troubles with power source, control signals: MUTE, DET and others. Bad connection of cables and connectors should be also considered.) If it is impossible to change to HEADPHONE, check the path of XHPDET signal.



No sound only from ZONE (Single channel - Check only the signal path of the relevant channel. Plural channels -

There may be troubles with power source, control signals: MUTE, DET and others. Bad connection of cables and connectors should be also considered.)

No sound only in ZONE SW - Check the relevant path in AUDIO ASSY.

Sound comes from ZONE2 or ZONE3 OUT by applying the signal to analog input terminal.

Check the path of the relevant channel in AUDIO ASSY.

If music content is replayed with Front USB terminal, sound does not from ZONE2.

In AutoSurr, the signal of the relevant channel exist in A-DAC BRIDGE ASSY.

Check the path of the relevant channel in AUDIO ASSY.

The signal(ZFDA, ZBCK, ZLRCK, ZMCK) of the relevant channel does not exist in D-DAC BRIDGE ASSY.

Check the path of the relevant channel (ZONE2 DAC) in DAC HIGH ASSY.

Check the path of the relevant signal in DIGITAL MAIN ASSY.

Check the path of the relevant signal in FRONT HDMI USB ASSY.

Yes

Sound comes from HEADPHONE in Pure Direct by applying a signal to analog input terminal.

Sound comes from Preout in PureDirect.

Check the path of the relevant channel in AUDIO ASSY.

In AutoSurr with removing HEADPHONE, the signal of the relevant channel does not exists in A-DAC BRIDGE ASSY

Check the path of the relevant channel in AUDIO ASSY.

HP signal exists in FRONT BRIDGE ASSY.

Check the path of the relevant channel in AUDIO ASSY.

The signal(DATA, BCK, LRCK) of the relevant channel does not exist in D-DAC BRIDGE ASSY.

Check the path of the relevant channel in DAC HIGH ASSY.

HP signal exists in FB CONNECT ASSY.

Check the path of the relevant channel in FRONT BRIDGE ASSY.

Check the path of the relevant signal in DIGITAL MAIN ASSY.

Check the HP signal path in MIC HP ASSY.

Yes

HP signal exists in INTERFACE_M ASSY.

Check the path of the relevant channel in FB CONNECT ASSY.

HP signal exists in F-IN BRIDGE ASSY.

Check the path of the relevant channel in INTERFACE_M ASSY.

Yes

6 7 8

SC-99

6 7 8



No sound only from FRONT USB terminal or only from MHL terminal (There may be troubles with the power

source of circuit and control signals. Bad connection of cables and connectors should be also considered.)

Check the path of the relevant signal in FRONT HDMI USB ASSY.

Check the path of the relevant signal in DIGITAL MAIN ASSY.



No sound only in HDMI, MEDIA SERVER and INTERNET RADIO (There may be troubles with the power source of

circuit and control signals. Bad connection of cables and connectors should be also considered.)

Check the path of the relevant signal in DIGITAL MAIN ASSY.



No sound only in BT (Single channel - Check only the signal path of the relevant channel. Plural channels -

There may be troubles with power source, control signals: MUTE, DET and others. Bad connection of cables and connectors should be also considered.)



No sound only in tuner (There may be troubles with the power source of circuit and control signals.

Bad connection of cables and connectors should be also considered.)



No sound only in MULTI CH IN (There may be troubles with the power source of circuit and control signals.

Bad connection of cables and connectors should be also considered.) (SC-97, SC-LX79 only)

Check the path of the relevant channel in AUDIO ASSY, and check TUNER MODULE.

Yes

The signal of the relevant channel(2, 4, 6, 8, 10, 12, 14 and 16pin) exists in CN2510

Yes



No sound only in USB-DAC (There may be troubles with the power source of circuit and control signals.

Bad connection of cables and connectors should be also considered.) (SC-99, SC-LX89 only)

Check the path of the relevant signal in USB DAC ASSY.

Check the path of the relevant signal in DIGITAL MAIN ASSY.

Check the circuit of the connection destination.

Check the broken point (start with checking the relevant channel (FL, FR, C, SW, SL, SR of IC2501 and SBL, SBR of IC3273), and check the peripheral circuit.

Yes

Is the Antenna (ADH7049) connected to the Network Module(AXX7293)?

Is the Home Menu OSD displayed?

Remove the Network Module (AXX7293) and check the following voltages of CN9203 1pin or 3pin :1.2V / 2pin or 4pin : 2.5V / 7pin or 9pin : 1.8V / 8pin or 10pin : 3.3V

Check the Power IC for problem voltage or replace the DIGITAL MAIN ASSY

Connect the Antenna (ADH7049) to Network Module (AXX7293)

Replace the Network Module(AXX7293)

Check the degital audio signal output (CN9203 - 26, 28, 30, 32, 34pin) of DIGITAL MAIN ASSY

Can it connect (paring) with any BT Devices?

No Good

Replace the DIGITAL MAIN ASSY

2 3 4

SC-99

2 3 4



No sound only in POWERD HD ZONE

Speaker setting is correct ? Set the Speaker setting correctly.

Is there signal in the CN9702-22, 24, 25, 26pin of DIGITAL MAIN ASSY ?

Check the peripheral circuit of IC1818. Check the path from IC1602.

Is there signal in the IC2038-1, 2, 3, 4pin of DAC HIGH ASSY ?

Check the peripheral path.

Check the VOL IC(IC2501, IC3273) peripheral circuit of AUDIO ASSY.

Yes

Check the peripheral circuit of IC2038.

Is there signal in the CN2003-1, 3pin of DAC HIGH ASSY ? Check the peripheral circuit of IC2039.

Yes

Is there signal in the IC2038-10, 11pin of DAC HIGH ASSY ?



No sound by MEDIA SERVER, INTERNET RADIO, FRONT USB, BT and Wi-Fi

Yes

Check the Power IC for problem voltage or replace the DIGITAL MAIN ASSY

Check the connection between DIGITAL MAIN ASSY and Network Module (AXX7293)

Reconnect the Network Module(AXX7293) to DIGITAL MAIN ASSY.

Check the digital audio signal lines or replace the DIGITAL MAIN ASSY

Replace the Network Module(AXX7293)

Check the degital audio signal output (CN9203 - 26, 28, 30, 32, 34pin) of DIGITAL MAIN ASSY

Remove the Network Module (AXX7293) from DIGITAL MAIN ASSY and check the following voltages of CN9203 - 1pin or 3pin :1.2V / 2pin or 4pin : 2.5V / 7pin or 9pin : 1.8V / 8pin or 10pin : 3.3V

6 7 8

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

No sound only in PHONO

Check the path and circuit between IC2501 and JA2503.



No sound in plural input modes of speaker and Preout

No sound in plural channels

Check the broken point (start with checking the relevant channel of CN2502)

Check of power source: Is there ±12V in JP3001 ? Check the circuit of the connection destination.

7V and -7V are output from Q3001 and 3002. Check the circuit.

MUTE signal of the relevant channel of CN2861 is "L".

Check the circuit of the connection destination.

When CN2861 volume is changed, the signal is transmitted to 11, 12, 13pin.

Check the circuit of the connection destination.

Check the broken point (start with checking the relevant channel of CN2502), and check the peripheral circuit.



No sound only in analog input

Check the path from each input terminal to IC2501.



No sound only from HEADPHONES

Check the peripheral of IC2801.



No sound only from ZONE 2 and ZONE 3 (Both of them, Either of them)

MUTE signal of the relevant channel of CN2861 is "L." Check the circuit of the connection destination.

When CN2861 ZONE volume is changed, the signal is transmitted to 11, 13pin.

Check the circuit of the connection destination.

Check the broken point (start with checking the relevant channel (34, 35, 77, 78pin of IC2501), and check the peripheral circuit.



No sound only from ZONE 2 of FRONT USB

Check the path from 1, 3pin of CN2502 to IC2501.



No sound only in BT

Check the path from 18, 20pin of CN3001 to IC2501.



No sound only in Tuner

The signal is transmitted to 7, 9pin when CN3902 is in reception state.

Check or repalce TUNER MODULE.

5V is output from Q3901. Check the circuit.

When the frequency of the tuner of CN3902 is changed, the signal is transmitted to 1, 2, 3, 4pin.

Check the signal path between CN3902 and CN2861.

Check the signal path form CN3902 to IC2501.



No sound only from DVR/BDR OUT

Check the path and circuit between IC2501 and JA2501.

Yes

2 3 4

AUDIO ASSY DIAGNOSIS

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2 3 4



No sound from speakers and Preout in EXT STEREO

No sound in plural channels

Check the broken point (start with checking the relevant channel of CN2003)

Check of power source: Is there ±12V in CN2004 ?

Check of power source: Is there ±6V in CN2004 ?

Check the circuit of the connection destination.



No sound only in analog input

Check the peripheral circuit of IC2027.



No sound only in COAX input or OPT input

Check the peripheral circuit of IC2003.



No sound only from ZONE 2 of FRONT USB

Check the peripheral circuit of IC2026.

Yes

Check the peripheral circuit of X2001.

The signal(DABCK, DALRCK, each DATA) of the relevant channel exist in CN2001.

80MHz clock exist in 19pins of IC2009 and IC2010.

Check the broken point (start with checking the relevant channel of CN2003), and check the peripheral circuit.



No sound only in BT

Check the 14, 16pin of JA2010, the power source and control signals.

DAC HIGH ASSY DIGNOSIS

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6 7 8

1) No Sound

Yes

NOTE : Wiring number listed is the example of Front L-ch

2) Diagnosis Flow Chart from Error Symptom

Failure locating method from error symptom is available as diagnosis after product shutdown. Diagnosis Flow Chart from error symptom due to Amplifier Section is shown here.

Cause of being BERR

When B-Power Supply Voltage exceeds

75 V

When B-Power Supply Voltage falls below +20 V

Yes

Cause of being OL

At Over Current Detected (Not worked with no-load) At Driver IC not Oscillated At ZOBEL Detection Circuit Activated

Yes

Cause of being DC

When DC 7V or above is output in Audio Output Line

Cause of being TEMPERR

When MOSFET Temperature exceeds approx. 120 degrees When MOSFET temperature is suddenly increased

Shorted MOSFET (Q4101, Q4102)

Failure BERR Detection Circuit

(around Q4022, Q4024)

Check Connector Conductivity

Oscillation

Waveform on Driver IC

(IC4101) Output (13pin) seen

just in a moment

at restarting?

Parts Failure after AMPLPF

(L4100, C4101)

Failure in MOSFET (Q4101, Q4102)

Check Power Supply on

Temperature Detection Circuit

(around R4181 and Q4117)

Perform impedance check on

Audio Output Line vs. Power Supply

Failure around Driver ->

Replace Driver IC

Failure around ZOBEL Detection

Circuit (Q4104, etc)

Power

Distribution

Status

Any Switching

Residual Waveform existed

in Speaker Output* ?

(Sine wave = Approx.

450 KHz, 0.7V rms)

Audio Signal Input Check how far the

signal is passing

MUTE cleared ?

Check MUTE Control

voltage (Q4109 Base)

V = -12V (Normally)

Go to 2) Diagnosis Flow Chart

from Error Symptom if immediate

shut down happens by the

Protection Circuit.

Check LPF COIL Conductivity

(L4100)

Check each Power Supply of

Driver IC (IC4101)

Check Relay (RY4100) is ON

Check MUTE Control Line

Signal exists just

before Driver IC (IC4101) ?

Check the four block ASSY of

D AMP ASSY

Failure Driver IC (IC4101)

Abnormality

Detection on

AMP Power

Voltage (BERR)

Over Current Detection (OL)

DC Detection

TEMPERR

Check XBERR Line Conductivity

from D AMP ASSY

CN4000-6pin to DISPLAY ASSY

CN6001-31pin.

BERR Conductivity

Failure Detection

(CERR)

Approx. DC 2V

exists in

Speaker Output ?

Check Voltage of Driver IC

CSD Port (2pin)

DIGITAL AMP BLOCK FLOWCHART

(Waveform 1 and 2)*

* : Refer to D AMP ASSY (2/6)

There is a problem

in Conduction of Power

Supply Connector* ?

*: (CN4001, CN4002, CN4003, CN4004)

Precautions for checking the speaker output

For the channel shown below, positive and negative of SP terminal are inverted. surround ch : surround back ch :

The black terminal is HOT and the red terminal is ground.

Parts Failure after AMPLPF (L4100, Q4101)

2 3 4

SC-99

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