Pioneer SC-LX81 Service Manual

124
SC-LX81
1
2 3 4
A
B
C
D
E
F
1
2 3 4
10.16 COMPOSITE S ASSY
H
S_DET
V_MUTE
VZ2_MUTE
VZ3_MUTE
A_AROUT
A_ACOUT
A_VYIN D V R1
A_VVIN D V R1
A_VVIN D V R2
A_VVINVIDEO2
A_VYINVIDEO1
A_VVINVIDEO1
A_VYIN T V SAT
A_VVIN T V SAT
A_VYIN D V D
A_VVIN D V D
A_VVINVIDEO3I
A_VYINVIDEO3I
A_VCINVIDEO3I
MR_VS W 2
Z3_VS W 1
A_VVI
NT V SAT
A_VVINVIDEO3
Z3_VS W 2
Z2_VS W 3
Z3_VS W 3
A_VVINVIDEO2
Z2_VS W 1
A_VVIN T V SAT
A_VVOUTZ2SEL1
A_VVINVIDEO2
A_VVINVIDEO2
A_VVINVIDEO1
A_VVIN D V D
A_VVIN D V R1
A_VVOUTMSEL1
A_VVIN D V D
Z2_VS W 2
A_VVIN D V D
A_VVINVIDEO1
A_VVIN D V R2
MR_VS W 1
A_VVINVIDEO3
MR_VS W 3
A_VVIN D V R2
A_VVIN D V R1
A_VVIN T V SAT
A_VVIN D V R2
A_VVIN D V R1
A_VVINVIDEO3 A_VVINVIDEO1
A_VVOUTZ3SEL1
A_VCINVIDEO2
A_VCOUTMSEL1
A_VYIN D V R2
MR_VS W 3
A_VCINVIDEO3
MR_VS W 1
A_V
YIND V D
MR_VS W 2
A_VCIN D V R2
A_VYINVIDEO1
A_VCIN D V D
MR_VS W 2
A_VYOUTMSEL1
A_VYINVIDEO3
A_VCIN D V R1
A_VYIN T V SAT
A_VCINVIDEO1
MR_VS W 1
MR_VS W 3
A_VYINVIDEO2
A_VCIN T V SAT
A_VYIN D V R1
A_VVIN OSD
A_VVIN OSD
A_
VYOUTMSEL1
A_VCOUTMSEL1B
A_VVOUTMSEL1B
A_VVIN OSD
A_VVIN D V C
A_VYIN D V C
A_VCIN D V C
A_VYOUTMSEL1
A_VCOUTMSEL1
A_VVOUTMSEL1
A_VYINVIDEO2
A_VVOUTMSEL1
A_VVOUT_MSEL2
A_VYIN D V C
A_VYOUT_MSEL2
A_VYOUTMSEL1
A_VCOUTMSEL1
A_VCOUT_MSEL2
A_VCIN D V C
A_VVIN D V C
HEXCLK5
HEXDT5
HEXOE5
HEXST5
MRSW
A_VVOUTMSEL1B
A_VYOUTMSEL1B
A_VCOUTMSEL1B
A_VYOUTMSEL1B
MUTESB
S_DET
A_VVINVIDEO3I
A_VYINVIDEO3I
A_VYINVIDEO3
A_VCINVIDEO3I
A_VCINVIDEO3
A_VVINVIDEO3
A_ALOUT
A_ALFEOUT
A_ALSOUT
A_ARSOUT
A_ASBLOUT
A_ASBROUT
MUTEA
A_VCIN D V R1
A_VCIN D V R2
A_VCINVIDEO2
A_VCINVIDEO1
A_VCIN T V SAT
A_VCIN D V D
A_VYIN D V R2
CN6503
CKS3545-A
1
1 V+5HDMI
2
02 GND HDMI
3
03 HEXP CLK
4
04 HEXP DT
5
05 HEXP OE
6
06 HEXP ST
7
07 S-DET
8
08 V MUTE
9
09 VZ2 MUTE
10
10 VZ3 MUTE
11
11 V+12RY
12
12 GND V
14
13 GND V
15
14 V+5.6V
16
15 V+5.6V
17
16 V-5.6V
18
17 V-5.6V
19
18 ZOSD C'SITE OUT
20
19 GND V
21
20 C'SITE IN
22
21 GND V
23
22 C'SITEOUT
24
23 GND V
25
24 SY IN
26
25 GND V
27
26 SC IN
28
27 GND V
29
28 SY OUT
30
29 GND V
13
30 SC OUT
52044-1945
CN6502
1
1.MUTEA
2
2.MUTESB
3
3.GNDA
4
4.FR OUT
5
5.GNDA
6
6.FL OUT
7
7.GNDA
8
8.SW OUT
9
9.GNDA
10
10.C OUT
11
11.GNDA
12
12.RS OUT
13
13.GNDA
14
14.LS OUT
15
15.GNDA
16
16.SBR OUT
17
17.GNDA
18
18 .SBL OUT
19
19.GNDA
10u/50
C6598
100u/10
C6601
100u/16
C6663
100u/16
C6662
100u/16
C6664
100u/16
C6665
100u/16
C6666
100u/16
C6688
22u/50
C6610
22u/50
C6607
100u/16
C6667
22u/50
C6613
NM
C6695
C6504
1000p/50
C6503
1u/10
C6612
0.01u/50
C6611
0.01u/50
C6608
0.01u/50
C6609
0.01u/50
C6605
0.01u/50
C6606
0.01u/50
C6505
1u/16
C6600
0.01u/50
C6599
0.01u/50
C6656
NM
C6657
NM
C6501
1u/10
C6507
1u/16
C6506
1000p/50
C6508
1000p/50
C6502
1000p/50
C6668
1000p/50
C6669
1000p/50
C6655
10p/50
C6670
1u/16
C6654
10p/50
C6671
1u/16
C6672
1u/16
C6673
1u/16
C6675
1000p/50
C6653
10p/50
C6674
1000p/50
C6677
1u/16
C6652
10p/50
C6689
10p/50
C6651
10p/50
C6678
1u/16
C6650
10p/50
C6676
1u/16
C6679
1000p/50
C6680
1000p/50
C6509
1u/10
C6684
1u/16
C6683
1u/16
C6682
1u/16
C6685
1000p/50
C6686
1000p/50
C6687
1000p/50
C6510
1000p/50
C6690
1u/16
C6691
1u/16
C6693
1000p/50
C6692
1000p/50
C6694
0.01u/50
C6681
1000p/50
D6501
1SS352
GN D V
GN D V
GN D V
GN D V
GN D V
GN D V
GN D V
GN D V
GN D V
GN D V
GN D V
GN D V
GN DHDMI
GN D V
GN D V
GN D V
GN D V
GN DHDMI
GN D V
GN D V
GN D V
GN D V
GN D V
GN D V
GN D V
GN D
V
GN DCH
GN D V
GN D V
GN D V
GN D V
GN DA
GN D V
GN D V
GN D V
GN D V
GN D V
GN D V
TC74HC4051AFT
IC6505
4
1
6
2
COM
3
7
4
5
5
6
IN H
7
VEE
8
GN D
9
C
10
B
11
A
12
3
13
0
14
1
15
2
16
Vcc
TC74HC4051AFT
IC6509
4
1
6
2
COM
3
7
4
5
5
6
IN H
7
VEE
8
GN D
9
C
10
B
11
A
12
3
13
0
14
1
15
2
16
Vcc
TC74HC4051AFT
IC6508
4
1
6
2
COM
3
7
4
5
5
6
IN H
7
VEE
8
GN D
9
C
10
B
11
A
12
3
13
0
14
1
15
2
16
Vcc
TC74HC4051AFT
IC6506
4
1
6
2
COM
3
7
4
5
5
6
IN H
7
VEE
8
GN D
9
C
10
B
11
A
12
3
13
0
14
1
15
2
16
Vcc
NM
IC6507
4
1
6
2
COM
3
7
4
5
5
6
IN H
7
VEE
8
GN D
9
C
10
B
11
A
12
3
13
0
14
1
15
2
16
Vcc
LA7213 IC6510
1
1
2
2
3
3
4
4
5
5
KN 6501
VNE1948-A
GN D1
1
GN D2
2
GN D3
3
GN D4
4
KN 6503
VNE1948-A
GN D1
1
GN D2
2
GN D3
3
GN D4
4
KN 6502
VNE1948-A
GN D1
1
GN D2
2
GN D3
3
GN D4
4
RT1N241M
Q6510
NM
Q6527
NM
Q6526
Q6525
2SC4154(EFG)
Q6524
2SC4154(EFG)
Q6516
2SC4154(EFG)
2SA1602A(EF)
Q6509
R6693
0
R6604
220k
R6602
10
R6605
330
R6595
75
R6626
4.7k
R6584
75
R6593
75
R6606
4.7k
R6607
NM
R6627
NM
R6611
0
R6612
0
R6613
0
R6614
0
R6615
0
R6617
NM
R6678
0
R6629
NM
R6598
75
R6620
0
R6594
75
R6622
NM
R6625
0
R6630
0
R6600
75
R6597
75
R6697
NM
R6692
0
R6619
NM
R6624
NM
R6677
0
R6599
75
R6618
10k
R6601
75
R6596
75
R6623
10k
R6592
75
R6698
NM
R6628
10k
R6585
75
R6621
4.7k
R6616
4.7k
R6688
0
R6696
NM
R6694
NM
R6691
0
R6676
NM
R6675
0
R6590
75
R6591
75
R6587
75
R6586
75
R6589
75
R6588
75
R6695
NM
R6603
1k
R6610
0
R6609
0
V-5_V
V-5_V
V+5_V
V+5_V
V-5_V
V+5_V
V-5_V
V+5_V
V-5_V
V+5_V
V+5_V
V-5_V
V+5_V
V-5_V
V+5_V
V-5_V
V+5_V
V+5R6_V
V-5_V
V+5_V
VDD12
VDD12
V-5R6_V
VDD5HDMI
TC74HC4053AFT
IC6511
1Y
1
0Y
2
1Z
3
Z-COM
4
5
0Z
6
IN H
7
VEE
8
GN D
9
C
10
B
11
A
12
0X
13
1X
14
X-COM
15
Y-COM
16
VCC
V-5_V
V+5_V
C6660
1000p/50
100u/16
C6621
C6661
1000p/50
GN D V
V-5R6_V
V+5_V
100u/16
C6620
D6503
V+5R6_V
D6502
V-5_V
IC6516
NJM2505AF
Vout
1
GN D
2
V+
3
Vin
4
5
VG ND
R6699
NM
R6700
100
R6701
100
GN D V
V+5_V
C6698
0.01u/50
GN DF
GN DF
IC6517
NJM2505AF
Vout
1
GN D
2
V+
3
Vin
4
5
VG ND
R6704
100
GN D V
C6701
0.01u/50
V+5_V
R6703
100
GN DF
R6702
NM
IC6518
NJM2505AF
Vout
1
GN D
2
V+
3
Vin
4
5
VG ND
R6707
100
GN D V
C6704
0.01u/50
V+5_V
R6706
100
GN DF
R6705
NM
CKS3374-A
CN6501
1
GN D V
2
FV
3
GN D V
4
FSY
5
GN D V
6
FSC
7
GN D V
8
V+12RY
9
GN DRY
C6703
10u/6.3
C6696
10u/6.3
C6702
10u/6.3
C6700
10u/6.3
C6697
10u/6.3
C6705
NM
C6699
10u/6.3
C6706
NM
C6707
NM
R6708
100k
R6709
150k
GN D V
D6504
DAN217U
D6505
DAN217U
D6506
DAN217U
V+5_V
GN D V
GN D V
V+5_V
GN D V
V+5_V
R6710
NM
R6711
NM
R6712
NM
R6713
0
R6714
0
R6715
0
R6716
NM
R6717
NM
R6718
NM
JA6503
AKB7199-A
1
2
3
4
5
6
7
8
JA6504
AKB7200-A
8
9
10
11
12
13
14
JA6505
AKB7200-A
8
9
10
11
12
13
14
JA6506
AKB7200-A
1
2
3
4
5
6
7
15
JA6506
AKB7200-A
8
9
10
11
12
13
14
JA6507
AKB7200-A
1
2
3
4
5
6
7
15
C6717
0.1u/16
C6718
0.1u/16
C6719
0.1u/16
C6720
0.1u/16
C6721
0.1u/16
C6722
0.1u/16
Y
c
Y
c
Y
c
Y
c
MAIN SEL1
ZONE2 SEL1
ZONE3 SEL1
Y SEL1
C SEL1
S SEL
MAIN SEL2
TC74HC4051
TC74HC4051
VIDEO3(FRON T IN )
DV R1
DV R2
VIDEO1
TV /SAT
DV D
VIDEO2
IN PUT SELECTOR
SELECTOR FOR DVC/THROUGH
S-DET
GN D ISOLATOR FOR V IDEO3
CN7708
I
CN6951
N
CN8602
J
(Y)
(FSY)
(CSiteSY)
(FSC)
(CSiteV)
(CSiteV)
(CSiteSY)
(CSiteSY)
(SY)
(CSite)
(CSiteSC)
(SC)
(CSiteSC)
(CSiteSC)
(CSiteV)
(FV)
(FV)
(CSiteV)
(CSite)
(FV)
(CSiteV)
(CSite)
(C)
(V)
(Y)
(C)
(V)
(Y)
(C)
(V)
(Y)
(C)
(V)
(Y)
(C)
(V)
(Y)
(C)
(V)
(FV)
(FSY)
(FSC)
(CSite)
(CSiteV)
(CSiteSY)
(FV)
(FSY)
(FSC)
(CSiteSC)
(CSite)
(SY)
(SC)
(CSiteV)
(CSiteSY)
(CSiteSC)
(FL)
(C)
(SW)
(SL)
(SB)

Pioneer SC-LX81 Specifications

General

Brand	Pioneer
Model	SC-LX81
Category	Receiver
Language	English