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ORDER NO.
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 2008
2008 Printed in Japan
SC-LX81
RRV3872
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
SC-LX81
SC-LX71
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
This service manual should be used together with the following manual(s):
For SPECIFICATIONS and PANEL FACILITIES, refer to the operating instructions.
Model
Type
Power Requirement
Remarks
SC-LX81
HDLPWXJ
AC 220 V to 230 V/ 240 V
SC-LX81
LFXJ
AC 110 V
SC-LX71
HDLPWXJ
AC 220 V to 230 V/ 240 V
SC-LX71
LFXJ
AC 110 V
Model
Order No.
Remarks
SC-LX81/HYSXJ5
RRV3841
T-ZZV SEPT.


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2
SC-LX81
1
2
3
4
A
B
C
D
E
F
1
2
3
4
1. CONTRAST OF MISCELLANEOUS PARTS
1.1 CONTRAST TABLE
(2) CONTRAST TABLE
SC-LX81/HYSXJ5, SC-LX81/HDLPWXJ, SC-LX81/LFXJ, SC-LX71/HDLPWXJ and SC-LX71/LFXJ are con-
structed the same except for the following:
Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
The
mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
Screws adjacent to
mark on product are used for disassembly.
For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions, apply as you think it appropriate.)
Nos. indicate the pages and Nos. in the service manual for the base model.
NOTES:
When ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
5 6 1
4 7 3
R 5 0
1 R 0
RD1/4PU
J
RD1/4PU
J
RN2H
K
RS1P
K
56 x 101
47 x 103
R50
1R0
561
473
RN1/4PC
F
562 x 101
5621
5
2
6
1
Mark
No.
Symbol and Description
SC-LX81/
HYSXJ5
SC-LX81/
HDLPWXJ
SC-LX81/
LFXJ
SC-LX71/
HDLPWXJ
SC-LX71/
LFXJ
Remarks
PCB ASSEMBLIES
NSP
1..PRIM_DISPLAY ASSY
AWM8120
AWM8122
AWM8123
AWM8131
AWM8132
P91-6
2..PRIMARY ASSY
AWX9166
AWX9168
AWX9169
AWX9168
AWX9169
NSP
1..DIGITAL MOTHER ASSY
AWP7058
AWP7060
AWP7061
AWP7066
AWP7067
P89-2
2..D-MOTHER ASSY
AWX9196
AWX9198
AWX9199
AWX9204
AWX9205
NSP
1..AUDIO ASSY
AWR7071
AWR7073
AWR7073
AWR7073
AWR7073
P91-12
2..AUDIO ASSY
AWX9206
AWX9208
AWX9208
AWX9208
AWX9208
P89-11
1..HDMI NETWORK ASSY
AWX9234
AWX9135
AWX9135
AWX9190
AWX9190
P91-14
1..FM/AM Tuner Unit
AXX7248
AXX7251
AXX7251
AXX7251
AXX7251
PACKING
P85-4
Operating Instructions
ARB7393
ARB7394
Not used
ARB7394
Not used
(English)
P85-4
Operating Instructions
Not used
Not used
ARC7805
Not used
ARC7805
(Chinese)
P85-5
Operating Instructions
ARC7799
Not used
Not used
Not used
Not used
(French)
P85-5
Operating Instructions
Not used
ARC7806
Not used
ARC7806
Not used
(Spanish)
P85-6
Operating Instructions
ARC7800
Not used
Not used
Not used
Not used
(German)
P85-7
Operating Instructions
ARC7801
Not used
Not used
Not used
Not used
(Italian)
P85-8
Operating Instructions
ARC7802
Not used
Not used
Not used
Not used
(Spanish)
P85-9
Operating Instructions
ARC7803
Not used
Not used
Not used
Not used
(Dutch)
P85-10
Operating Instructions
ARC7804
Not used
Not used
Not used
Not used
(Russian)
NSP
P85-12
Warranty Card EU
ARY7128
Not used
Not used
Not used
Not used
>
P85-13
Power Cord
ADG7062
ADG7062
ADG7076
ADG7062
ADG7076
P85-20
Packing Case
AHD8603
AHD8607
AHD8605
AHD8608
AHD8606
P85-23
Label (WEEE)
ARW7322
Not used
Not used
Not used
Not used
Power Plug Adapter
Not used
AKX7022
Not used
AKX7022
Not used
Caution 220-230V
Not used
ARR7023
Not used
ARR7023
Not used
Caution Card SD SB
Not used
ARM7063
Not used
ARM7063
Not used


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3
SC-LX81
5
6
7
8
5
6
7
8
A
B
C
D
E
F
Notes : For PCB assemblies, Refer to "1.2 CONTRAST OF PCB ASSEMBLIES" and "2. SCHEMATIC DIAGRAM".
CHASSIS SECTION
>
P89-12
Power Transformer (T1501)
ATS7423
ATS7423
ATS7425
ATS7423
ATS7425
REAR PANEL SECTION
>
P91-15
Fuse (T5.0AL) FU1
REK1029
REK1029
Not used
REK1029
Not used
>
P91-15
Fuse (T10AL) FU1
Not used
Not used
DEK1045
Not used
DEK1045
P91-33
Rear Panel
ANC8526
ANC8529
ANC8528
ANC8536
ANC8535
NSP
P91-65
Fuse Card(T5AL250V)
AAX7098
AAX7098
Not used
AAX7098
Not used
NSP
P91-65
Fuse Card(T10AL250V)
Not used
Not used
AAX7970
Not used
AAX7970
NSP
CPA Label
Not used
AAX8152
Not used
AAX8153
Not used
FRONT PANEL SECTION
P93-22
Front Panel
ANB7483
ANB7484
ANB7484
ANB7488
ANB7488
Mark
No.
Symbol and Description
SC-LX81/
HYSXJ5
SC-LX81/
HDLPWXJ
SC-LX81/
LFXJ
SC-LX71/
HDLPWXJ
SC-LX71/
LFXJ
Remarks
PRIMARY ASSY
(Voltage Selector
: S8751)
(HDLPWXJ Only)
Screw
BBZ30P080FTB
Screw
CBZ30P080FTB
AC INLET ASSY
Rear Panel
Exploded Views
REAR PANEL SECTION


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4
SC-LX81
1
2
3
4
A
B
C
D
E
F
1
2
3
4
1.2 CONTRAST OF PCB ASSEMBLIES
AWX9206 and AWX9208 are constructed the same except for the following:
AWX9196, AWX9198 and AWX9199 are constructed the same except for the following:
*1 : Refer to AWX9196 on page 96 of RRV3841.
AWX9202, AWX9204 and AWX9205 are constructed the same except for the following:
*1 : Refer to AWX9202 on page 96 of RRV3841.
AF AUDIO ASSY
Mark
Symbol and Description
AWX9206
AWX9208
Remarks
IC5651 RDS Decoder IC
LC72725KM
Not used
D5651
1SS352
Not used
X5651 Crystal Resonator (4.332 MHz)
ASS7004
Not used
L5651
QTL1013
Not used
R5003, R5004
RS1/16S561J
RS1/16S331J
R5652, R5653
RS1/16S220J
Not used
R5657
RS1/16S473J
Not used
C5001, C5002
CCSRCH221J50
Not used
C5005, C5006
CCSRCH331J50
Not used
C5009, C5010, C5653
CCSRCH561J50
Not used
C5031-C5034, C5041, C5042, C5051
CCSRCH101J50
Not used
C5043, C5044, C5113, C5114
CCSRCH220J50
Not used
C5133, C5134
CCSRCH220J50
Not used
C5052-C5054, C5071-C5074
CCSRCH101J50
Not used
C5081-C5084, C5091-C5094
CCSRCH101J50
Not used
C5101-C5104, C5111, C5112
CCSRCH101J50
Not used
C5121-C5124, C5131, C5132
CCSRCH101J50
Not used
C5141-C5144, C5151-C5154
CCSRCH101J50
Not used
C5161-C5164, C5171-C5174
CCSRCH101J50
Not used
C5181-C5184
CCSRCH101J50
Not used
C5651
CEAT101M10
Not used
C5652
CCSRCH102J50
Not used
C5654
CKSRYB103K50
Not used
C5655, C5657
CCSRCH270J50
Not used
C5656
CEAT100M50
Not used
C5658
CKSRYB472K50
Not used
BF D-MOTHER ASSY (SC-LX81)
Mark
Symbol and Description
AWX9196
AWX9198
AWX9199
Remarks
R2010
RS1/16S473J
RS1/16S473J
RS1/16S104J
R2012
RS1/16S473J
RS1/16S473J
RS1/16S333J
R2013
Not used
RS1/16S473J
Not used
*1
R2058, R2059
RS1/16SS152J
Not used
Not used
R2060
RS1/16SS101J
Not used
Not used
R2134, R2135
RS1/16SS104J
Not used
Not used
BF D-MOTHER ASSY (SC-LX71)
Mark
Symbol and Description
AWX9202
AWX9204
AWX9205
Remarks
R2010
RS1/16S473J
Not used
RS1/16S473J
R2011
Not used
Not used
RS1/16S473J
*1
R2012
Not used
RS1/16S473J
Not used
*1
R2058, R2059
RS1/16SS152J
Not used
Not used
R2060
RS1/16SS101J
Not used
Not used
R2134, R2135
RS1/16SS104J
Not used
Not used


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5
SC-LX81
5
6
7
8
5
6
7
8
A
B
C
D
E
F
AWX9234 and AWX9135 are constructed the same except for the following:
AWX9235 and AWX9190 are constructed the same except for the following:
AWX9166, AWX9168 and AWX9169 are constructed the same except for the following:
EF HDMINETWORK ASSY (SC-LX81)
Mark
Symbol and Description
AWX9234
AWX9135
Remarks
R14
RS1/16SS332J
Not used
R599, R1795
RS1/16SS103J
Not used
R1895
RS1/16SS182J
RS1/16SS0R0J
C157
VCH1234
Not used
C159, C160, C1400
ACH7306
Not used
C401, C402, C503, C1301
VCH1234
CEVW101M16
C932
VCH1268
Not used
C1349, C1917
CCSSCH471J16
CKSSYB471K50
C1705, C1906
VCH1234
CEVW221M4
EF HDMINETWORK ASSY (SC-LX71)
Mark
Symbol and Description
AWX9235
AWX9190
Remarks
R14
RS1/16SS332J
Not used
R599, R1795
RS1/16SS103J
Not used
R1895
RS1/16SS182J
RS1/16SS0R0J
C157
VCH1234
Not used
C159, C160, C1400
ACH7306
Not used
C401, C402, C503, C1301
VCH1234
CEVW101M16
C932
VCH1268
Not used
C1349, C1917
CCSSCH471J16
CKSSYB471K50
C1705, C1906
VCH1234
CEVW221M4
TF PRIMARY ASSY
Mark
Symbol and Description
AWX9166
AWX9168
AWX9169
Remarks
>
T8701
ATT7040
ATT7040
ATT7100
KN8703 Screw Plate
VNE1948
Not used
VNE1948
>
S8751 Voltage Selector
Not used
AKX7020
Not used
>
JP8701 Board In Wire
Not used
ADX7642
Not used
>
JP8702 Board In Wire
Not used
ADX7643
Not used
>
JP8703 Board In Wire
Not used
ADX7641
Not used