Pioneer SC-LX81 Service Manual

94
SC-LX81
1
2 3 4
A
B
C
D
E
F
1
2 3 4
10. SCHEMATIC DIAGRAM
10.1 AUDIO ASSY
A
!
!
A_A_ANA_FRIN A_A_ANA_FLIN A_A_ANA_SW I N
A_A_ANA_CIN A_A_ANA_RSIN A_A_ANA_LSIN A_A_ANA_SBRIN
A_A_Z2L_VLIN
A_A_Z2R_VLIN
A_A_DA_FRMIX
A_A_DA_FLMIX
A_ADASWOUT
A_ADACOUT
A_ADARSOUT
A_ADALSOUT
A_ADASBROUT
A_ADASBLOUT
A_A_PHONO_R A_A_PHONO_L A_A_ANA_SBLIN
A_AFRONT_RIN
A_AFRONT_LIN
A_A_Z3L_VLIN
A_A_Z3R_VLIN
A_ADAFLOUT
A_ADASWOUT
A_ADAFROUT
A_A_ANA_CIN
A_A_ANA_SW I N
A_A_ANA_LSIN
A_A_ANA_RSIN
A_A_ANA_SBLIN
A_A_ANA_SBRIN
V-7A
A_ADAZFLOUT
A_ADAZFROUT
GN DDAS
A_A_PHONO_L A_A_PHONO_R
A_A_ANA_FRIN
A_A_ANA_FLIN
GN DA
GN DA
GN DA
CKS3384-A
CN5002
V-12A
1
V-12A
2
GN DA
3
GN DA
4
V+12A
5
V+12A
6
V+6AD
7
V+6AD
8
GN DA
9
GN DA
10
FL AD
11
GN DA
12
FR AD
13
GN DA
14
SIRIUS R
15
GN DA
16
SIRIUS L
17
GN DA
18
GN DA
19
10u/50
C5504
10u/50
C5018
ACH1479-
C5202
ACH1479-
C5204
NM
C5507
NM
C5509
10u/50
C5503
2.2u/50
C5501
47u/16
C5020
47u/16
C5019
10u/50
C5004
47u/16
C5008
2.2u/50
C5502
47u/16
C5007
10u/50
C5017
10u/50
C5003
C5703
470p/50
*C5123
C5022
0.1u/16
C5706
NM
C5021
0.1u/16
*C5151
C5705
0.01u/50
*C5002
C5206
100p/50
CH
C5205
100p/50
CH
C5203
330pF
*C5071
C5201
330pF
*C5006
*C5171
*C5113
C5506
NM
*C5101
C5505
NM
C5708
0.1u/16
C5709
470p/50
C5710
0.1u/16
*C5163
*C5112
*C5102
C5015
1200p/50
*C5005
*C5164
*C5143
*C5124
*C5051
C5719
470p/50
C5301
0.01u/50
*C5072
C5265
0.01u/50
*C5081
*C5142
*C5010
*C5111
C5013
1200p/50
C5016
1200p/50
*C5009
C5702
0.1u/50
*C5173
C5014
1200p/50
C5711
470p/50
C5718
0.1u/16
C5701
470p/50
*C5172 *C5161
*C5144
*C5094
*C5082 *C5084
*C5091
*C5182
*C5083
*C5074
*C5103
*C5052
C5011
8200p/50
*C5132
*C5093
*C5133 *C5131
C5704
0.1u/50
*C5092
C5712
0.1u/16
*C5032
C5713
470p/50
C5302
0.01u/50
*C5141
C5714
0.1u/16
C5707
NM
*C5104
C5266
0.01u/50
C5715
470p/50
*C5073
*C5122
*C5031
*C5134
*C5183
*C5121
*C5001
C5012
8200p/50
*C5184 *C5174 *C5044
*C5042
*C5114
*C5181 *C5152*C5162
*C5043 *C5041
D5501
UDZS7R5(B)
D5502
UDZS7R5(B)
GN DCH
GN DCH
GN DCH
GN DCH
GN DD
GN DCH
GN DCH
GN DCH
GN DCH
IC5301 TC4066BFN
IN /OUT1
1
OUT/IN1
2
OUT/IN2
3
IN /OUT2
4
5
CIN2
6
CIN3
7
VSS
8
IN /OUT3
9
OUT/IN3
10
OUT/IN4
11
IN /OUT4
12
CIN4
13
CIN1
14
VDD
IC5001
NJM4565MD
5
4
6
7
8
IC5001
NJM4565MD
3
4
2
1
8
L5132
NM
L5131
NM
L5112
NM
L5111
NM
L5042
NM
L5041
NM
L5004
NM
L5003
NM
L5001
NM
L5002
NM
RT1N241M
Q5301
RT1N241M
Q5269
RT1P241M
Q5302
Q5501 2SD185 8X(QR)2SB1237X(QR)
Q5502
R5083
330
R5154
330
R5111
100k
R5182
470k
R5014
470
R5009
390k
R5172
470k
R5183
330
R5002
100k
R5164
330
R5094
330
R5001
100k
R5144
330
R5184
330
R5173
330
R5005
100k
R5136
150k
R5115
150k
R5104
330
R5006
100k
R5181
470k
R5084
330
R5174
330
R5054
330
R5702
0
R5703
0
R5201
1k
R5202
1k
R5010
390k
R5042
100k
R5131
100k
R5041
100k
R5043
2.2k
R5044
2.2k
R5203
NM
R5015
220k
R5013
470
R5132
100k
R5133
2.2k
R5007
560
R5161
470k
R5114
2.2k
R5134
2.2k
R5033
330
R5116
150k
R5123
330
R5073
330
R5113
2.2k
R5053
330
R5320
47k
R5008
560
R5112
100k
R5016
220k
R5143
330
R5171
470k
R5012
30k
R5034
330
*R5068
1M
R5124
330
R5011
30k
R5163
330
R5035
NM
R5036
NM
R5055
NM
R5056
NM
R5075
NM
R5076
NM
R5085
NM
R5086
NM
R5095
NM
R5096
NM
R5105
NM
R5106
NM
R5125
NM
R5126
NM
R5145
NM
R5146
NM
R5155
NM
R5156
NM
R5165
NM
R5166
NM
R5175
NM
R5176
NM
R5185
NM
R5186
NM
R5162
470k
R5093
330
R5504
100
R5503
100
R5502
4.7k
R5074
330
R5501
4.7k
R5701
NM
*R5067
1M
R5269
47k
R5153
330
R5103
330
R5135
150k
V+7A
V-7A
V+7A
V+7A
V+12A
V+7A
V-7A
V+6AD
V-12A
V+7A
V-7A
V+7A
V-7A
V+7A
V-7A
V-7A
V+7A
A_A_TU_R
A_A_TU_L
22u/50
C5035
NM
C5036
22u/50
C5055
22u/50
C5056
22u/50
C5075
22u/50
C5076
10u/50
C5045
10u/50
C5046
22u/50
C5085
22u/50
C5086
22u/50
C5095
22u/50
C5096
22u/50
C5105
22u/50
C5106
22u/50
C5125
22u/50
C5126
22u/50
C5145
22u/50
C5146
22u/50
C5155
22u/50
C5156
22u/50
C5165
22u/50
C5166
22u/50
C5175
22u/50
C5176
22u/50
C5185
22u/50
C5186
R5031
470k
R5032
470k
R5051
470k
R5052
470k
R5071
470k
R5072
470k
R5081
470k
R5082
470k
R5091
470k
R5092
470k
R5101
470k
R5102
470k
R5121
470k
R5122
470k
R5141
470k
R5142
470k
22u/50
C5207
22u/50
C5208
10u/50
C5115
10u/50
C5116
10u/50
C5135
10u/50
C5136
GN DCH
R5742
NM
GN DA
R5743
0
R5744
0
GN DA
R5045
150k
R5046
150k
R5151
470k
R5152
470k
TC4053BFN
IC5255
1Y
1
0Y
2
1Z
3
Z-COM
4 5
0Z
6
IN H
7
VEE
8
VSS
9
C
10
B
11
A
12
0X
13
1X
14
X-COM
15
Y-COM
16
VDD
*C5153*C5154
GN DA
BD3473KS2
IC5201
SBLOUT
1
SBROUT
2
COUT
3
SW OUT
4
SLOUT
5
SROUT
6
FLOUT
7
FROUT
8
VEE
9
CLOCK
10
DATA
11
DGND
12
VCC
13
TN F1
14
BN F1
15
BOUT1
16
BOUT2
17
BN F2
18
TN F2
19
AGND1
20
AGND2
21
SBLIN1
22
SBRIN1
23
CIN1
24
SW I N1
25
SLIN1
26
SRIN1
27
FLIN1
28
FRIN1
29
AGND3
30
ADCL
31
ADCR
32
AGND4
33
SUB1R
34
SUB1L
35
AGND5
36
IN R1
37
IN L1
38
IN R2
39
IN L2
40
IN R3
41
IN L3
42
IN R4
43
IN L4
44
IN R5
45
IN L5
46
IN R6
47
IN L6
48
IN R7
49
IN L7
50
IN R 8
51
IN L 8
52
IN R9
53
IN L9
54
IN R10
55
IN L10
56
IN R11
57
IN L11
58
IN R12
59
IN L12
60
AGND6
61
IN R13/FRIN 2
62
IN L13/FLIN 2
63
IN R14/SRIN 2
64
IN L14/SLIN 2
65
IN R15/SW IN 2
66
IN L15/CIN 2
67
IN R16/SBRIN 2
68
IN L16/SBLIN 2
69
AGND7
70
IN R17/RECR1
71
IN L17/RECL1
72
IN R18 /RECR2
73
IN L18 /RECL2
74
RECR3
75
RECL3
76
RECR4/SUB2R
77
RECL4/SUB2L
78
AGND 8
79
AGND9
80
R
W
JA5001
XKB3017-A
R
W
R
W
JA5002
XKB3017-A
R
W
R
W
*JA5004
R
W
XKB3017-A
R
W
JA5005
XKB3017-A
R
W
R
W
JA5006
XKB3017-A
R
W
R
W
JA5007
XKB3017-A
R
W
R
W
JA5008
XKB3017-A
R
W
R
W
JA5009
XKB3017-A
R
W
D5201
1SS302
R5301
6.8k
R5303
68 0
R5304
68 0
R5305
8.2k
R5306
8.2k
R5302
6.8k
C5209
0.01u/16
CFHX
C5210
0.01u/16
CFHX
*C5053
*C5054
*C5033*C5034
C5511
CH
1000p/50
C5508
CH
1000p/50
C5510
CH
1000p/50
R5030
0
22u/50
C5038
R5038
NM
R5040
NM
*R5003
*R5004
ADX7653-B
JP5001
1
V+6AD
2
V+12A
3
GN DA
4
GN DA
5
V-12A
DV R2
DV R1
DV R2
VIDEO2
CD-R/TAPE
VIDEO1
PHONO
CD
DV R1
7.1CH INPUT
EQUALIZER AMP
FL
FR
C
SW
SL
SR
SBL
SBR
PHONO/MULTI CH SEL
OUT
IN
OUT
IN
TV /SAT
DV D
PHONOSEL
MULTI CH
IC5255
PHONO
SELECT
L
H
(1/2)
(2/2)
(MAIN)
(MAIN)
IN
OUT
CD-R/TAPE
IN PUT SELECTOR
& VOLUME
(GNDDAS)
(GNDDAS)
CN7502
V
CN7042
F
(SL)
(CD)
(FL)
(CD)
(DVD)
(TV)
(FVL)
(DVR)
(ZONE)
(FL)
(SW)
(C)
(SB)
(F)
(CD)
(CD)
(TL)
(DVD)
(TV)
(SL)
(FL)
(C)
(SB)
(SW)
(DVR)
(FVL)
(REC)
(REC)
(REC)
(REC)
(REC)
(REC)
(PHONO)
(PHONO)
(ZONE)
(SB)
(SW)
(SL) (C) (FL)
(PHONO)
(TL)
(F)
(SB)
(ZONE)
(ADC)
(F)
(C)
(SW)
(SL)

Pioneer SC-LX81 Specifications

General

Brand	Pioneer
Model	SC-LX81
Category	Receiver
Language	English