PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION
SC-LX82
For details, refer to "Important Check Points for good servicing".
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
SC-LX82
SC-LX72
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Remarks
SC-LX82 SYXJ5 AC 220 V to 230 V
SC-LX72 SYXJ5 AC 220 V to 230 V
ORDER NO.
RRV3967
T-ZZV JULY
2009 Printed in Japan
1
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or
equivalent between the earth ground and all exposed
metal parts of the appliance (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120V
AC 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE APPLIANCE TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are
often not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical components having such features are
identified by marking with a > on the schematics and on
the parts list in this Service Manual.
The use of a substitute replacement component which
does not have the same safety characteristics as the
PIONEER recommended replacement one, shown in the
parts list in this Service Manual, may create shock, fire,
or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current PIONEER Service
Manual. A subscription to, or additional copies of,
PIONEER Service Manual may be obtained at a nominal
charge from PIONEER.
Leakage
current
tester
Reading should
not be above
0.5 mA
Device
under
test
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
Earth
ground
AC Leakage Test
(FOR USA MODEL ONLY)
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to
cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must
be of identical designation.
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces
de remplacement doivent avoir la même désignation.
This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.
2 3 4
SAFETY INFORMATION
A
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D
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[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.
1. Product saf ety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment b y
following the safety instructions described in this manual.
1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety .
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TV interference and foreign noise .
3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity . (Refer to the e xample)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws .
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs.
In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8 There should be no semi-broken wires , scratches, melting, etc. on the coating of the pow er cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages .
If you find a damaged power cord, please exchange it with a suitab le one.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the po wer cord if necessary .
a Safe en vironment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to pre vent injuries.
Please pay attention to your surroundings and repair safely.
2. Adjustments
T o k eep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.
3. Lubricants, Glues , and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
5. Shipping mode and Shipping scre ws
T o protect products from damages or f ailures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follo w this method especially if it is specified in this manual.
6 7 8
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1
2 3 4
CONTENTS
SAFETY INFORMATION..........................................................................................................................................................2
1. SERVICE PRECAUTIONS....................................................................................................................................................6
A
B
C
D
E
1.1 NOTES ON SOLDERING ...............................................................................................................................................6
1.2 NOTES ON REPLACING PARTS ...................................................................................................................................6
1.3 CAUTION........................................................................................................................................................................ 6
1.4 NOTES ON ASSEMBLING.............................................................................................................................................7
1.5 NOTES ON BENDING SHIELD FFC..............................................................................................................................8
2. SPECIFICATIONS .................................................................................................................................................................9
2.1 SPECIFICATIONS...........................................................................................................................................................9
2.2 PANEL FACILITIES.......................................................................................................................................................10
3. BASIC ITEMS FOR SERVICE.............................................................................................................................................20
3.1 CHECK POINTS AFTER SERVICING ..........................................................................................................................20
3.2 PCB LOCATIONS .........................................................................................................................................................21
3.3 JIGS LIST......................................................................................................................................................................23
4. BLOCK DIAGRAM...............................................................................................................................................................24
4.1 OVERALL WIRING DIAGRAM......................................................................................................................................24
4.2 BLOCK DIAGRAM for AUDIO BLOCK..........................................................................................................................26
4.3 BLOCK DIAGRAM for DIGITAL VIDEO and NW (NetWork) AUDIO.............................................................................28
4.4 BLOCK DIAGRAM for ANALOG VIDEO BLOCK (1/4).................................................................................................29
4.5 BLOCK DIAGRAM for ANALOG VIDEO BLOCK (2/4).................................................................................................30
4.6 BLOCK DIAGRAM for ANALOG VIDEO BLOCK (3/4).................................................................................................31
4.7 BLOCK DIAGRAM for ANALOG VIDEO BLOCK (4/4).................................................................................................32
4.8 BLOCK DIAGRAM for U-COM BLOCK.........................................................................................................................33
4.9 BLOCK DIAGRAM for POWER BLOCK........................................................................................................................34
5. DIAGNOSIS.........................................................................................................................................................................36
5.1 DIAGNOSIS FLOWCHART...........................................................................................................................................36
5.2 CIRCUIT DESCRIPTION..............................................................................................................................................52
6. SERVICE MODE.................................................................................................................................................................60
6.1 TEST MODE.................................................................................................................................................................60
7. DISASSEMBLY....................................................................................................................................................................62
8. EACH SETTING AND ADJUSTMENT................................................................................................................................68
8.1 HOW TO UPDATE FIRMWARE....................................................................................................................................68
9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................78
9.1 PACKING SECTION......................................................................................................................................................78
9.2 EXTERIOR SECTION...................................................................................................................................................80
9.3 REAR SECTION...........................................................................................................................................................82
9.4 CHASSIS SECTION .....................................................................................................................................................84
9.5 FRONT SECTION.........................................................................................................................................................86
10. SCHEMATIC DIAGRAM ....................................................................................................................................................88
10.1 AUDIO ASSY ..............................................................................................................................................................88
10.2 DSP ASSY (1/4)..........................................................................................................................................................90
10.3 DSP ASSY (2/4)..........................................................................................................................................................92
10.4 DSP ASSY (3/4)..........................................................................................................................................................94
10.5 DSP ASSY (4/4)..........................................................................................................................................................96
10.6 FRONT-HDMI ASSY ...................................................................................................................................................98
10.7 232C_CONTROL ASSY ...........................................................................................................................................100
10.8 DIGITAL MAIN ASSY (1/7)..................... ..... ...... ..... ...... ............................................. ...... ..........................................102
10.9 DIGITAL MAIN ASSY (2/7)..................... ..... ...... ..... ...... ............................................. ...... ..........................................108
10.10 DIGITAL MAIN ASSY (3/7)......................................................................................................................................110
10.11 DIGITAL MAIN ASSY (4/7)......................................................................................................................................112
10.12 DIGITAL MAIN ASSY (5/7)..................................................................................................
.13 DIGITAL MAIN ASSY (6/7)...................................................................................................................................... 116
0
1
.................................... 114
10.14 DIGITAL MAIN ASSY (7/7)......................................................................................................................................118
10.15 INTERFACE ASSY..................................................................................................................................................120
10.16 COMPONENT ASSY..............................................................................................................................................122
10.17 COMPOSITE_S ASSY (1/2)...................................................................................................................................124
10.18 COMPOSITE_S ASSY (2/2)...................................................................................................................................126
10.19 FRONT BRIDGE ASSY..........................................................................................................................................128
10.20 MIC HP ASSY.........................................................................................................................................................130
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6 7 8
10.21 DISPLAY, VOL and POWER SW ASSYS...............................................................................................................132
10.22 ICE_BUFFER and ICE SHIELD ASSYS ................................................................................................................134
10.23 ICE INTERFACE ASSY............................................................ ..... ...... ...... ..... ...... ..... .............................................136
10.24 ICEPOWER AMP ASSY (1/5).................................................................................................................................138
10.25 ICEPOWER AMP ASSY (2/5).................................................................................................................................140
10.26 ICEPOWER AMP ASSY (3/5).................................................................................................................................142
10.27 ICEPOWER AMP ASSY (4/5).................................................................................................................................144
10.28 ICEPOWER AMP ASSY (5/5).................................................................................................................................146
10.29 V-BRIDGE and PRE_BRIDGE ASSYS...................................................................................................................148
10.30 PRIMARY GUARD ASSY.......................................................................................................................................149
10.31 PRIMARY ASSY.....................................................................................................................................................150
10.32 REG ASSY .............................................................................................................................................................152
10.33 ICE_REG ASSY .....................................................................................................................................................154
10.34 B_REG ASSY.........................................................................................................................................................156
10.35 B_DIODE ASSY.....................................................................................................................................................158
10.36 HDMI RECT and H GUARD ASSYS ......................................................................................................................159
10.37 DIGITAL_BRIDGE and ZOUT ASSYS....................................................................................................................160
11. PCB CONNECTION DIAGRAM......................................................................................................................................162
11.1 AUDIO ASSY............................................................................................................................................................162
11.2 DSP ASSY................................................................................................................................................................166
11.3 FRONT-HDMI and 232C_CONTROL ASSYS ..........................................................................................................170
11.4 DIGITAL MAIN ASSY................................................................................................................................................172
11.5 INTERFACE ASSY...................................................................................................................................................176
11.6 COMPONENT ASSY................................................................................................................................................180
11.7 COMPOSITE_S ASSY.............................................................................................................................................184
11.8 FRONT BRIDGE, MIC HP, VOL and POWER SW ASSYS ......................................................................................188
11.9 DISPLAY ASSY ........................................................................................................................................................192
11.10 ICE_BUFFER, ICE SHIELD and ICE INTERFACE ASSYS ...................................................................................196
11.11 ICEPOWER AMP ASSY.........................................................................................................................................200
11.12 V-BRIDGE, PRE_BRIDGE, PRIMARY GUARD and PRIMARY ASSYS................................................................204
11.13 REG ASSY .............................................................................................................................................................208
11.14 ICE_REG ASSY .....................................................................................................................................................212
11.15 B_REG and B_DIODE ASSY.................................................................................................................................214
11.16 HDMI RECT, H GUARD, DIGITAL_BRIDGE and ZOUT ASSYS............................................................................216
12. PCB PARTS LIST............................................................................................................................................................218
A
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D
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5
1
• For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.
• Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 ºC.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.
Do NOT use a soldering iron whose tip temperature cannot be controlled.
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden).
The following lead-free solders are available as service parts:
• Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.
The part listed below is difficult to replace as a discrete component part.
When the part listed in the table is defective, replace whole Assy.
IC800 EMMA2RL2 UPD61283F1-407LU2A BGA
IC1501 HDMI Receiver SII9233ACTU IC with heat-pad
DIGITAL MAIN
ASSY
ASSY NAME
Ref No. Part No. RemarksFUNCTION
PCB ASSY Part No.
Parts that is Difficult to Replace
AWX9498
• Discharging
Before starting the diagnosis, wait for three minutes until the electricity of the unit is discharged.
• Ground Points
Please refer to page 62, “Ground Points”.
2 3 4
1. SERVICE PRECA UTIONS
1.1 NOTES ON SOLDERING
A
B
C
1.2 NOTES ON REPLACING PARTS
D
E
1.3 CA UTION
F
6
1
2 3 4
SC-LX82
5
Manufactured under license under U.S. Patent #’s:
5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,226,616;
6,487,535; 7,212,872; 7,333,929; 7,392,195; 7,272,567 &
other U.S. and worldwide patents issued & pending. DTS is
a registered trademark and the DTS logos, Symbol,
DTS-HD and DTS-HD Master Audio are trademarks of DTS,
Inc. © 1996-2008 DTS, Inc. All Rights Reserved.
Windows Media and the Windows logo are trademarks or
registered trademarks of Microsoft Corporation in the
United States and/or other countries.
iPod is a trademark of Apple Inc., registered in the U.S. and
other countries. iPhone is a trademark of Apple Inc.
THX, the THX logo, Ultra2 Plus and Select2 Plus are
trademarks of THX Ltd. which may be registered in some
jurisdictions. All rights reserved.
All other trademarks are the property of their respective
owners.
“Neural Surround”, “Neural Audio”, “Neural” and “NRL” are
trademarks and logos owned by Neural Audio Corporation,
THX is a trademark of THX Ltd., which may be registered in
some jurisdictions. All rights reserved.
2. SPECIFICATIONS
2.1 SPECIFICATIONS
6 7 8
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Item to be checked regarding video Item to be checked regarding audio
Block noise Distortion
Horizontal noise Noise
Flicker Volume too low
Disturbed image (video jumpiness) Volume too high
Too dark Volume fluctuating
Too bright Sound interrupted
Mottled color
No. Procedures Check points
1
2
3
4
5
6
7
8
Confirm whether the customer complain has been solved.
If the customer complain occurs with the particular source,
such as Dolby Digital, DTS, AAC, DVD-A and HDMI, input it for
the operation check.
The customer complain must not be reappeared.
Video, Audio and operations must be normal.
Check the analog audio playback.
(Make the analog connections with a DVD player.)
Each channel audio and operations must be normal.
Check the digital audio playback.
(Make the digital connections with a DVD player.)
Each channel audio and operations must be normal.
Check surround playback.
(Select Surround mode and check the multichannel operations
via the DSP circuit.)
Each channel audio and operations must be normal.
Check the tuner (AM and FM) operations. Audio and operations must be normal.
Check the video outputs.
(Connect with a DVD player.)
Video and operations must be normal.
Check the sound from headphone output. Sound must be normal, without noise.
Check the appearance of the product. No scratches or dirt on its appearance after receiving it for
service.
Items to be checked after servicing
To keep the product quality after servicing, confirm recommended check points shown below.
See the table below for the items to be checked regarding video and audio.
Cleaning
Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools.
NamePosition to be cleaned Part No. Remarks
Refer to “9.4 CHASSIS SECTION”.Cleaning paperFans GED-008
2 3 4
3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
A
B
C
D
E
F
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LIST OF ASSEMBLIES
NOTES: - Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
-
The > mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
J
MIC HP ASSY
C
FRONT-HDMI ASSY
L
VOL ASSY
M
POWER SW ASSY
K
DISPLAY ASSY
Mark Symbol and Description SC-LX82/SYXJ5 SC-LX72/SYXJ5
1..ICEPOWER AMP ASSY AWH7023 AWH7020
NSP 1..COMPOSITE_ICE ASSY AWM8156 AWM8156
2..PRE_BRIDGE ASSY AWX9440 AWX9440
2..COMPOSITE_S ASSY AWX9493 AWX9493
2..ICE_BUFFER ASSY AWX9444 AWX9444
2..ICE SHIELD ASSY AWX9445 AWX9445
NSP 1..PRIM_DISPLAY ASSY AWM8146 AWM8151
2..DISPLAY ASSY AWX9476 AWX9482
2..VOL ASSY AWX9455 AWX9455
2..POWER SW ASSY AWX9456 AWX9456
2..V-BRIDGE ASSY AWX9457 AWX9457
2..PRIMARY ASSY AWX9486 AWX9486
2..HDMI RECT ASSY AWX9459 AWX9459
NSP 1..DIGITAL AUDIO ASSY AWP7071 AWP7073
2..DSP ASSY AWX9462 AWX9468
2..ICE INTERFACE ASSY AWX9430 AWX9430
NSP 1..COMPONENT_MIC ASSY AWQ7069 AWQ7071
2..COMPONENT ASSY AWX9437 AWX9490
2..MIC HP ASSY AWX9438 AWX9438
2..ZOUT ASSY AWX9439 AWX9439
2..H GUARD ASSY AWX9441 AWX9441
2..DIGITAL_BRIDGE ASSY AWX9461 AWX9461
NSP 1..AUDIO_232C ASSY AWR7075 AWR7075
2..AUDIO ASSY AWX9469 AWX9469
2..232C_CONTROL ASSY AWX9472 AWX9472
2..PRIMARY GUARD ASSY AWX9436 AWX9436
NSP 1..INTERFACE_REG ASSY AWR7083 AWR7083
2..INTERFACE ASSY AWX9447 AWX9447
2..ICE_REG ASSY AWX9448 AWX9448
2..B_REG ASSY AWX9450 AWX9450
2..B_DIODE ASSY AWX9560 AWX9560
NSP 1..FBRIDGE_REG ASSY AWR7079 AWR7079
2..REG ASSY AWX9452 AWX9452
2..FRONT BRIDGE ASSY AWX9453 AWX9453
1..DIGITAL MAIN ASSY AWX9498 AWX9498
1..FRONT-HDMI ASSY AWX9497 AWX9497
1..FM/AM TUNER UNIT AXX7265 AXX7265
A
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30
D_SEL
GNDHDMI
XOSDRS
OSDCS
EXSO5_2(OSDSO)
OSDSCK/EXPSCK
EXSO5_3
EXDEANLG
EXSTANLG
EXSO5_1
S-DET
Z2CMUTE
V+5R6_V
V+5R6_V
GNDV
GNDV
V-5R6_V
V-5R6_V
GNDF
FV IN
GNDV
V IN
GNDV
30
GNDA
FR OUT
GNDA
FL OUT
GNDA
C OUT
GNDA
RS OUT
GNDA
LS OUT
GNDA
AMUTE
SBMUTE
GNDA
FR OUT
GNDA
FL OUT
GNDA
30
V-12A
V-12A
GNDA
GNDA
V+12A
V+12A
V+6AD
V+6AD
GNDAD
GNDAD
FL AD
GNDA
FR AD
GNDA
SIRIUS R
GNDA
SIRIUS L
GNDA
GNDA
V-7_A
GNDA
GNDA
V+7_A
GNDA
MICOUT
GNDA
LSSN
NC
RYHP
AMUTE
SBMUTE
Z2MUTE
Z3MUTE
Z2VLSO
VLSO
VLSCK
GNDHD
GNDHD
V+12_RY
GNDRY
GNDRY
HPL
GNDHP
HPR
GNDHP
1524
30
V+5V
V+5V
GNDV
GNDV
V-5V
V-5V
VZ3 MUTE
GNDV
VZ3 OUT
GNDV
VZ2 OUT
GNDV
VZ2 MUTE
17/60
9/60
24 15
20 24
XHPDET
MICDET
IR_IN
RMC
SR_IN
232POW
232CDET
EV232TX
EV232RX
V+5R6_ST
V+5R6_U
V+5R6_ST
GNDU
GNDHD
V+5_DDD
XOSDRST
OSDCS
OSDSCK/EXPSCK
EXSO5_2(OSDSO)
EXOEANLG
EXSTANLG
EXSO5_1
C-DET
S-DET
12VTRG1
12VTRG2
12VERR
NC
E2VINSW01
E2VINSW00
GNDV
GNDV
CV/Y IN
GNDV
SC IN
GNDV
SY OUT
GNDV
SC OUT
GNDV
C'NENT Y IN
GNDV
C'NENT Cb IN
GNDV
C'NENT Cr IN
GNDV
C'NENT Y OUT
GNDV
C'NENT Cb OUT
GNDV
C'NENT Cr OUT
GNDV
HMCLK
GNDHD
HBCK
HLRCK
HFADAT
HCADAT
HSADAT
HBADAT
HSPDIF
GNDHD
ZFL DA
GNDA
ZFR DA
GNDA
SBL DA
GNDA
SBR DA
GNDA
LA DA
GNDA
RS DA
GNDA
C DA
GNDA
SW DA
GNDA
FL DA
GNDA
FR DA
GNDA
V-12_A
V-12_A
GNDA
GNDA
V+12_A
V+12_A
V+6_AD
V+6_AD
GNDA
GNDA
FL AD
GNDA
FR AD
GNDA
NETSPDIF
GNDHD
GABCK
GALRCK
GAAADT
GNDHD
EMMCLK
GNDHD
NBCK
NLRCK
NFADT
GNDHD
NMCLK
GNDHD
BFADT
BBLRCK
BBCK
GNDHD
BMCLK
GNDHD
V+6_D
V+6_D
V+6_D
GNDD
GNDD
GNDD
6 2014
20
10
23
GNDA
SIRIUS L
GNDA
SIRIUS R
GNDA
XSIRST
SITX
SIRX
GNDHD
GNDHD
V+5R6_ST
V+5R6_ST
GNDU
GNDU
V+5R6_U
V+5R6_U
EV232RX
EV232TX
232C DET
232POW
SR IN
RMC
IR IN
19/135
21/135
24/110
10
20
10
24
20
1420
10
23
11/115
11/115
*1.00mm
HMCLK
GNDHD
HBCK
HLRCK
HFADAT
HCADAT
HSADAT
HBADAT
HSPDIF
GNDHD
3
XFANERR
FANCTLL
FANCTLH
LSSN
NC
RYHP
AMUTE
SBMUTE
Z2MUTE
Z3MUTE
Z2VLSO
VLSO
VLSCK
GNDHD
GNDHD
V+5_DDD
V+5_DDD
XRDSRST
RDSSCK
RDSSI
TUSI
TUSCK
TUSO
TUCE
V+12_RY
GNDRY
V+5.6ST
GNDST
GNDST
ACRY1
ACRY2
ACWP
GNDF
FRONT V
GNDF
D_SEL
GNDHDMI
XOSDRST
OSDCS
EXS05_2(OSDSO)
OSDSCK/EXPSCK
EXSO5_3
EXDEANLG
EXSTANLG
EXSO5_1
S-DET
Z2CMUTE
V+5.6V
V+5.6V
GNDV
GNDV
V-5.6V
V-5.6V
GNDF
FRONT V
GNDV
V IN
GNDV
SY IN
GNDV
SC IN
GNDV
SY OUT
GNDV
SC OUT
XFANERR
FANCTLL
FANCTLH
V+FAN
V-FAN
LOCK DET
AC1
AC2
-VF
V+12_TRG
V+5.6V
GNDV
GNDV
V-5.6V
8
3/50
V+
PO
PO
GN
*2mm
VOL
ASSY
VOLA
VOLB
GNDV
31/250
V+6_AD
V+12_A
GNDA
GNDA
V-12_A
ACWP
RYAC2
RYAC1
V+5.6ST
GNDV
GNDV
V+5.6U
-VF
AC2
AC1
10
GNDV
V+5R6_ST
RYAC1
RYAC2
ACWP
4/150
9/200
6
5
5
11
6
TO ICEPOWER AMP ASSY
ICELR
ICESLR
ICESBLR
ICEC
ICEMUTEA
ICEMUTESB
AMSW
XOLERR
RY AF
RY CR
RY CR
RY B
AMPTEMP
TEMPSD5
XDCERR
GNDHD
GNDHD
2
SEC8-1
SEC8-2
GNDD
GNDD
V+13_UN
V+13_UN
4
XHPDET
HPR
GNDHP
HPL
V-7_A
V+7_A
MICDET
GNDA
GNDA
MICOUT
GNDA
GNDF
FRONT V
GNDS
GNDUSB
D+
DV+5_USB
*1.00mm
V+FAN
V-FAN
LOCK DET
V-7A
V+7A
MICDET
GNDA
GNDA
MICOUT
GNDA
GNDF
FRONT V
17/100
4
4
*0.5mm
*0.5mm
*1.00mm
3
4
*1.00mm
10
XBERR
BTEMPERR
GNDV
V+5.6U
56 6
REK1154
(10A/125V)
ADD7651-
ADD7651-
ADD7646-
ADD7645-
ADD7647-
ADX7691-
4/110
D20PYY0415E
ADD7697-
ADD7679-
ADD7649-
ADD7681-
ADD7682-
D20PYY0305E
ADX7622-
4/275
ADX7699-
4/200
FU51
FU41
SEC7-1
NC
SEC7-2
V+13_UN
V+13_UN
GNDD
GNDD
NETSPDIF
GNDHD
GABCK
GALRCK
GAADAT
GNDHD
EMCLK
GNDHD
NBCK
NLRCK
NFADT
GNDHD
NMCLK
GNDHD
BFADT
BBLRCK
BBCK
GNDHD
BMCLK
GNDHD
*1.00mm
V+5R6_U
V+5R6_ST
GNDV
GNDV
RMC
GNDV
232EV
XEMRST5
EVSI5
EVSO
EVSCK
EMPOW
LOWPOW
ACWP
XSMUTE
HOTPLUG
CECIO
XVDDERR
XOLERR
TEMPERR5
EV232RX
EV232TX
232POWER
EVREQI5
XDCERR
XFANERR
AMPTEMP
232CDET
SR IN2
IR IN
EVREQO
*0.5mm
*1.00mm
*2mm
GNDA
ZFL DA
GNDA
ZFR DA
GNDA
SBL DA
GNDA
SBR DA
GNDA
LS DA
GNDA
RS DA
GNDA
C DA
GNDA
SW DA
GNDA
FL DA
GNDA
FR DA
GNDA
V+5_DDD
GNDHD
XRDSRST
RDSSCK
RDSSI
TUSI
TUSCK
TUSO
TUCE
XBERR
BTEMPERR
GNDU
V+5R6_U
3
+B
GND
-B
+B
GND
GND
-B
ADX7649
3/90
CN1900
JP8802
CN8801
CN7018
CN1405
CN1251CN1253
CN1402
CN1501
CN1259
CN1404
CN7002
CN7001
CN7004
CN6009
CN6004
CN2601
CN1403
CN2002
CN7006
CN2001
CN7007
CN2902
CN7009
CN2901
CN7008
CN2003
CN7019
CN5801
CN7011
CN7013
CN7014
CN6006
CN7015
JP8005
CN7017
JH7001
CN6351
CN6251
CN8202
JH8001
CN7012
CN4000
CN5002
CN5003
JP5001
CN7704
CN7709
CN7701
CN5004
CN5005
CN7705
CN7706
CN7702
CN6401
CN6503
CN6501
CN8602
CN6002
CN8601
JP7701
CN6001
JP6007
CN7303 CN7308
CN7306
CN6010
CN6811
CN3802
19
19
CN4901
CN4902
CN4903
2
4
7
FU61
!
!
FU62
J7061
XHPDET
HPR
GNDHP
HPL
56 6
CN3870 CN3860 CN3850
C
CCN4400CN4500CN4600
4
JP8004
GNDHD
CECIO
GNDHD
JH8006
CN7708
CN7016
GNDHP
HPL
GNDHP
HPR
GNDA
MICOUT
GNDA
V+7_A
GNDA
GNDA
V-7_A
XDSP2RST
DSPDO
DSPSI
DSPSCK
DSP1SS0
DSP1SS1
DSP2SS
DACS1
DACS2
Z2DACS
DSP1BUSY
DSP1MUTE
DSP2BUSY
OSDSCK/EXSCK
EXSO_9
EXCEDIGITAL
EXSTDIGITAL
XZDAMUTE
DAZDB
USBREQ0
DIRCS
UNLK
GNDHD
GNDHD
*1.00mm
CN1401
CN1601
CN2201
CN6757
CN6756
CN7005
CN1252
13
13
CN7003
CN1250
20
20
ICELR
ICESLR
ICESBLR
ICEC
ICEMUTEA
ICEMUTESB
AMSW
XOLERR
RY AF
RY CR
RY B
AMPTEMP
TEMPSD5
XDCERR
GNDHD
GNDHD
XSIRST
SITX
SIRX
NC
ADD7662-
27/120
XFANERR
FANCTLL
FANCTLH
LSSN
NC
RYHP
AMUTE
SBMUTE
Z2MUTE
Z3MUTE
Z2VLSO
VLSO
VLSCK
GNDF
GNDF
FRONT V
GNDHD
GNDHD
V+5_DDD
V+5_DDD
XRDSRST
RDSSCK
RDSSI
TUSI
TUSCK
TUSO
TUCE
*1.00mm
D20PYY0310E
3/100
ADX7696-
10/330
11
*0.5mm
ADD7713-B
30/550
TOP
BOTTOM
7
CN7010
CN2602
7
13
13
13
13
GNDHD
GNDHD
XMLINK
XMIRQ
XXMERR
XMRATE
XMPOW
XXMRST
MXMMUTE
XMLSDT
XMDT4
XMTX
XMRX
5
CN3553
GNDCH
GNDUSB
D+
D-
V+5D
GNDD
CEC_IO
GNDD
CN3554
GNDD
RFX2+
RFX2-
GNDD
RFX1+
RFX1-
GNDD
RFX0+
RFX0-
GNDD
RFXC+
RFC-
GNDD
SCL_SINK
SDA_SINK
HOTDET5
WP5
HDSCL5
HDSDA5
V+5_F
V+5_HD
GNDD
GNDD
GNDD
V+5_DDD
V+5_DDD
V+5_DDD
V+5_DDD
V+5_DDD
CEC_IO
CN3501
4
5
JH8401
ADX7698-
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
5/440
*2mm
3
J0003
J0001
C
FRONT-HDMI ASSY
(AWX9497)
G
COMPONENT ASSY
(AWX9437: SC-LX82)
(AWX9490: SC-LX72)
F
INTERFACE ASSY
(AWX9447)
J
MIC HP ASSY
(AWX9438)
Z
HDMI RECT ASSY
(AWX9459)
D
P
232C_CONTROL
ASSY
(AWX9472)
ICE IN
ASSY
N
A
ICE_BUFFER
ASSY (AWX9444)
PRE_BRID
ASSY (AW
FRONT
BRIDGE
ASSY
(AWX9453)
AUDIO ASSY (AWX94
DIGITAL_
BRIDGE ASSY
(AWX9461)
DSP ASSY
(AWX9462: SC-LX82)
(AWX9468: SC-LX72)
B
B 1/4- B 4/4
()
DIGITAL MAIN ASSY
(AWX9498)
E
E 1/7- E 7/7
()
AB
ZOUT ASSY
(AWX9439)
L
X
VOL ASSY (AWX9455)
B_REG
ASSY
(AWX9450)
AC
I
REK1164-
(T3.15A L/250V)
REK1161(T1.6A L/250V)
2 3 4
4. BLOCK DIA G RAM
4.1 OVERALL WIRING DIAGRAM
A
B
C
D
E
F
24
1
2 3 4
SC-LX82
5
30
GNDHDMI
XOSDRS
OSDCS
EXSO5_2(OSDSO)
OSDSCK/EXPSCK
EXSO5_3
EXDEANLG
EXSTANLG
EXSO5_1
S-DET
Z2CMUTE
V+5R6_V
V+5R6_V
GNDV
GNDV
V-5R6_V
V-5R6_V
GNDF
FV IN
GNDV
V IN
GNDV
SY IN
GNDV
SC IN
GNDV
SY OUT
GNDV
SC OUT
30
21
GNDA
FR OUT
GNDA
FL OUT
GNDA
C OUT
GNDA
RS OUT
GNDA
LS OUT
GNDA
SBR OUT
GNDA
SBL OUT
GNDCH
GNDCH
AMUTE
SBMUTE
GNDA
FR OUT
GNDA
FL OUT
GNDA
SW OUT
GNDA
C OUT
GNDA
SR OUT
GNDA
SL OUT
GNDA
SBR OUT
GNDA
SBL OUT
GNDA
V-12_A
V+12_A
30
Z2VLSO
VLSO
VLSCK
GNDHD
GNDHD
V+12_RY
GNDRY
GNDRY
HPL
GNDHP
HPR
GNDHP
V+5_DDD
GNDHD
XDRSRST
RDSSCK
RDSSI
TUSI
TUSCK
TUSO
TUCE
TUCE
TUSO
TUSCK
TUSI
GNDT
TL
V+9_T
TR
VSM
FMDET
GNDT
30
MUTEA
MUTESB
GNDA
FR OUT
GNDA
FL OUT
GNDA
SW OUT
GNDA
C OUT
GNDA
RS OUT
GNDA
LS OUT
GNDA
SBR OUT
GNDA
SBL OUT
GNDA
V-12_V
V+12_V
ACWP
ACRY2
ACRY1
V+5R6_ST
GNDST
21/55
17/60
9/115
11/115
TUNER
MODULE
16
16
GNDF
FRONT V
GNDV
V IN
GNDV
SY IN
GNDV
SC IN
GNDV
SY OUT
GNDV
SC OUT
V-REG
XFANERR
FANCTLL
FANCTLH
V+FAN
V-FAN
LOCK DET
!
AC CORD
ADG7062
SECONDARY
PRIMARY
MAIN TRANS
V+5_UH
POWLED
POWER KEY
GNDV
4/100
POWER SW
ASSY
7
A-REG
V-12_A
GNDA
GNDA
V+12_A
V+6_AD
5
FLAC1
FLAC2
-VF
V+12_TRG
V+5R6_V
GNDV
GNDV
V-5R6_V
-B+10V
-B
LOCK DET
V-FAN
V+FAN
FANCTLH
FANCTLL
XFANERR
V-12_RY
V-12_RY
V+12_RY
GND_DF(S)
V-12_DF
GND_DF
V+12_DF
6
2
FLAC1
FLAC2
-VF
V+5R6_U
GNDV
GNDV
V+5R6_ST
RYAC1
RYAC2
ACWP
5
6
FAN
B-REG
ICE REG
A-REG
V-REG
HDMI
RECT
DCDC
5
4
4
10
665665
GNDST
V+5_6ST
ACRY1
ACRY2
ACWP
SUB
TRANS
!
!
FU1
!
FU32
!
FU31
!
FU21
!
FU22
GND_MD(S)
V-5_MD
GND_MD
V+5_MD
4
!
FU11
!
FU12
!
FU15
!
FU14
!
FU13
ADD7649-
ADD7650-
ADD7651-
ADX7717-
5/175
ADX7693-
8/75
ADX7692-
5/100
D20PYY0410E
ADX7622-
4/275
ADX7701-
7/230
ADX7677-
4/200
ADX7657-
2/175
ADX7715-
6/200
ADD7705-
V+5R6_U
V+5R6_ST
GNDV
GNDV
RMC
GNDV
232EV
XEMRST5
EVSI5
EVSO
EVSCK
EMPOW
LOWPOW
ACWP
XSMUTE
HOTPLUG
CECIO
XVDDERR
XOLERR
TEMPERR5
EV232RX
EV232TX
232POWER
EVREQI5
XDCERR
XFANERR
AMPTEMP
232CDET
SR IN2
IR IN
EVREQO
!
*1.00mm
*1.00mm
5
V+5_DDD
GNDHD
XRDSRST
RDSSCK
RDSSI
TUSI
TUSCK
TUSO
TUCE
3
3
+B
GND
-B
ADX7649-
3/90
GNDCH2
5
GNDCH1
GNDCH1
GNDCH2
GNDCH2
JH8003
CN4900
CN7701
CN5005
CN7706
CN7707
CN5006
CN6952
CN6951
CN5007CN5008
6501
CN6502
JP7701
CN6001
JH6991
CN6801
CN6953
CN7303 CN7308
JP7401
CN7400
CN7201
CN7251
CN7241
CN7271CN7302
CN7502
CN7602
CN8711
CN6811 CN6821
CN3801CN3802
19 17
1719
JH6801
CN6830
AXM7040-
CN5752
GNDCH1
GNDCH1
GNDCH2
GNDCH2
BOARD IN
FFC
2.0mm FLAT CABLE
FFC CONNECTOR(I)
2.0mm CABLE HOLDER
*2mm
BOARD TO BOARD
PH SHIELD
T1501: ATS7423
*2mm
D20PYY0410E
4/100
-B(+64V)
GND
GND
+B(+64V)
AXX7265-
656656
CN3840
CN3830 CN3820 CN3810
CN4700CN4100CN4200CN4300CN4400CN4500600
CN7601 CN7501
S2,S3,S9
S5,S6
S4,S4'
S1 S7 S8
UL TUBE
SHIELD CASE AMR7526-B
PRIMARY BARRIER AEC7569-
8
JP8004
21
ANOTHER CONNECTOR
JH8501
J0002
4
JUMPER CONNECTOR
-
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.
Therefore, when replacing, be sure to use parts of identical designation.
-
: The power supply is shown with the marked box.
• NOTE FOR FUSE REPLACEMENT
CAUTION - FOR CONTINUED PROTECTION AGAINST
RISK OF FIRE, REPLACE WITH SAME TYPE AND
RATINGS OF FUSE.
K
M
W
DISPLAY ASSY
(AWX9476: SC-LX82)
(AWX9482: SC-LX72)
T
PRIMARY GUARD ASSY
(AWX9436)
P
ICE INTERFACE
ASSY (AWX9430)
R
S
PRE_BRIDGE
ASSY (AWX9440)
ASSY (AWX9469)
O
ICE SHIELD ASSY
(AWX9445)
COMPOSITE_S ASSY
(AWX9493)
H
H 1/2- H 2/2
(
ICEPOWER AMP ASSY
(AWH7023: SC-LX82)
(AWH7020: SC-LX72)
Q
Q 1/5- Q 5/5
(
)
)
V-BRIDGE ASSY
(AWX9457)
Y
B_DIODE ASSY
(AWX9560)
455)
POWER SW ASSY
(AWX9456)
ICE_REG ASSY
(AWX9448)
V
REG ASSY
(AWX9452)
U
PRIMARY ASSY
(AWX9486)
H GUARD ASSY
(AWX9441)
AA
REK1166(T5A L/250V)
(T800mA L/250V)
REK1021-
(T800mA L/250V)
REK1021-
(T800mA L/250V)
REK1021-
REK1159(T1A L/250V)
REK1159(T1A L/250V)
CN8702
6 7 8
A
5
SC-LX82
6 7 8
B
C
D
E
F
25