Pioneer SC-LX90 Service Manual page 279

Audio/video multi-channel amplifier
Table of Contents
5
C604
0.1u/10
IC601
1
OE1
VCC
2
A1
OE2
3
SCDACK
A2
Y1
4
A3
Y2
SCDAFD
5
A4
Y3
6
SCDAHS
A5
Y4
7
SCDAVS
A6
Y5
8
A7
Y6
9
SCHDCK
A8
Y7
SCAUHS
10
GND
Y8
SCAUVS
SCAUCK
TC74VCX541FT
C605
0.1u/10
IC602
SCAU0
1
OE1
VCC
SCAU1
SCHDDE
2
A1
OE2
SCAU2
3
SCHDHS
A2
Y1
SCAU3
4
SCHDVS
A3
Y2
5
A4
Y3
SCAU4
6
SCPR19
A5
Y4
SCAU5
7
SCPR18
SCAU6
A6
Y5
SCPR17
8
A7
Y6
SCAU7
9
SCPR16
A8
Y7
10
SCDACK
GND
Y8
SCDAHS
TC74VCX541FT
SCDAFD
C606
0.1u/10
SCDAVS
IC603
SCHDCK
1
OE1
VCC
SCHDDE
2
SCPR15
A1
OE2
SCHDHS
3
SCPR14
A2
Y1
SCHDVS
4
SCPR13
A3
Y2
SCPR12
5
A4
Y3
6
SCPR11
A5
Y4
7
SCPR10
A6
Y5
SCPR9
8
A7
Y6
9
SCPR8
A8
Y7
10
GND
Y8
TC74VCX541FT
SCPR19
C607
0.1u/10
SCPR18
IC604
SCPR17
1
OE1
VCC
SCPR16
2
SCPR7
A1
OE2
SCPR15
SCPR6
3
A2
Y1
4
SCPR14
SCPR5
A3
Y2
R600
SCPR13
SCPR4
5
22
A4
Y3
6
SCPR12
SCPR3
A5
Y4
7
SCPR11
SCPR2
A6
Y5
SCPR10
SCPR1
8
A7
Y6
R601
9
22
SCPR9
SCPR0
A8
Y7
10
SCPR8
GND
Y8
SCPR7
TC74VCX541FT
SCPR6
R602
22
SCPR5
SCPR4
C608
0.1u/10
IC605
SCPR3
1
OE1
VCC
SCPR2
2
R603
A1
OE2
22
SCPR1
3
SCAUCK
A2
Y1
SCPR0
4
A3
Y2
5
A4
Y3
V+1S
6
SCAUHS
A5
Y4
SCAUVS
7
A6
Y5
A
8
A7
Y6
V+3S
9
A8
Y7
10
GND
Y8
A
TC74LCX541FTS1
C609
0.1u/10
3-A
IC606
-A
1
OE1
VCC
z
2
SCAU0
C581
A1
OE2
9p/50
3
SCAU1
A2
Y1
C582
SCAU2
4
A3
Y2
5
9p/50
SCAU3
A4
Y3
6
SCAU4
A5
Y4
SCAU5
7
V+2S
A6
Y5
7
8
SCAU6
A7
Y6
9
SCAU7
A8
Y7
10
8
GND
Y8
TC74LCX541FTS1
GNDD
V+3R3VC
C601
10u/16
C602
0.1u/10
1
ENY0
2
3
ENY1
Y1
4
ENY2
Y2
ENY3
5
Y3
6
ENY4
Y4
7
ENY5
Y5
ENY6
8
Y6
9
ENY7
Y7
10
VDD_1
C603
11
DGND_1
0.1u/10
12
ENY8
Y8
ENY9
13
Y9
14
ENC0
C0
15
ENC1
C1
ENC2
16
C2
R604
NM
R605
4.7k
GNDD
5
6
V+3S
C657
0.1u/10
IC617
20
1
OE1
VCC
19
2
A1
OE2
18
3
SCDACK
A2
R616
ENCKBS
R627
17
47k
4
A3
16
68
5
A4
ENPFDS
R628
15
R617
47k
6
NM
SCDAHS
A5
ENPHSS
R629
14
R618
47
47k
7
SCDAVS
A6
ENPVSS
47
R630
47k
13
R619
8
A7
12
9
A8
R620
HDCLK
R631
47k
11
10
GND
47
TC74VCX541FT
20
19
HDDE
R632
18
R621
47
47k
R622
HDHS
R633
17
47
47k
HDVS
R623
47
R634
47k
16
15
ENY9S
14
1
8
5
4
ENY8S
13
7
2
6
3
ENY7S
12
3
6
2
7
ENY6S
11
4
5
8
1
R638
R608
47k
68
C622
0.1u/10
IC609
20
1
OE1
VCC
R639
19
R609
2
ENCKBS
47k
A1
OE2
68
ENY5S
18
3
1
8
ENPFDS
A2
5
4
ENY4S
17
4
2
7
ENPHSS
6
3
A3
ENY3S
16
ENPVSS
5
3
6
A4
7
2
ENY2S
15
6
4
5
ENC0S
A5
8
1
ENY1S
14
7
1
8
ENC1S
5
4
A6
ENY0S
13
7
ENC2S
8
2
A7
6
3
ENC9S
12
9
3
6
ENC3S
2
A8
7
ENC8S
11
10
4
5
8
1
GND
R640
R610
47k
68
TC74LCX541FTS1
C623
0.1u/10
IC610
20
1
OE1
VCC
R641
19
2
R611
ENC4S
47k
68
A1
OE2
ENC7S
18
8
ENC5S
3
1
A2
5
4
ENC6S
17
4
2
7
ENC6S
6
3
A3
ENC5S
16
ENC7S
5
3
6
A4
7
2
ENC4S
15
6
4
5
ENC8S
A5
8
1
ENC3S
14
7
1
8
ENC9S
5
4
A6
ENC2S
13
ENY0S
8
2
7
A7
6
3
ENC1S
12
9
3
6
ENY1S
A8
7
2
ENC0S
11
10
4
5
8
1
GND
R642
R612
47k
68
TC74LCX541FTS1
C624
0.1u/10
IC611
1
OE1
VCC
2
ENY2S
20
A1
OE2
ENY3S
3
19
A2
4
ENY4S
18
A3
5
ENY5S
ENCKA
R624
R635
47k
A4
17
6
ENY6S
16
A5
47
7
ENY7S
15
A6
R625
ENY8S
8
47
ENSHS
R636
47k
A7
14
9
ENY9S
ENSVS
R637
13
47k
A8
10
12
R626
GND
47
11
TC74LCX541FTS1
GNDD
20
19
R643
R613
47k
68
18
1
8
ENS2
5
4
17
ENS3
2
7
6
3
16
3
6
ENS4
7
2
15
4
5
ENS5
8
1
14
8
ENS6
1
5
4
13
2
7
ENS7
3
6
12
3
6
ENS8
7
2
11
4
5
ENS9
8
1
IC612
R644
R614
47k
ADR512ARTZ
68
GNDD
V+
1
TRIM/NC
3
V-
2
V+1R8VC
L602
ATL7010-A
V+3R3VC
V+3DA
C625
48
R648
3.9k
(F)
R652
47
100u/16
46
C613
220
1
VDD_IO
SFL/MISO
48
0.1u/10
(F)
45
C614
2
Y0
RSET1
47
COMP1
0.1u/10
46
VREF
44
DAC1
43
DAC2
42
DAC3
C626
41
IC607
VAA
40
0.1u/10
ADV7340BSTZ
AGND
39
Video Encoder
DAC4
C667
38
0.01u/16
DAC5
COMP2
35
37
DAC6
R649
R653
PVDD
34
3.9k
(F)
220
(F)
36
EXT_LF1
33
RSET2
C615
35
0.1u/10
34
C620
0.15u/10
R650
R651
33
120
47
(1608)
C619
0.012u/16
V+1R8VC
L603
QTL1013-A
6
V+3S
20
19
18
Y1
R6005
17
ENCKA
Y2
16
22
Y3
15
R6006
Y4
47
14
ENSHS
Y5
13
ENSVS
Y6
12
R6007
Y7
47
11
Y8
C645
IC614
1
OE1
HDCLK
2
A1
3
HDDE
A2
4
HDHS
A3
HDVS
5
A4
6
ENC0S
A5
7
ENC1S
A6
ENC2S
8
A7
9
ENC3S
A8
10
GND
TC74VCX541FT
C646
IC615
20
1
OE1
19
2
ENC4S
A1
ENCKB
18
R6019
47k
3
R668
ENC5S
47
Y1
A2
ENPFD
R6018
17
47k
4
R669
ENC6S
47
Y2
A3
ENPHS
R6017
47k
16
ENC7S
5
R670
47
Y3
A4
ENPVS
R6016
15
47k
6
R667
ENC8S
47
Y4
A5
ENC0
14
7
1
8
ENC9S
Y5
5
4
A6
ENC1
13
7
ENY0S
8
2
Y6
A7
6
3
ENC2
12
9
3
6
ENY1S
Y7
2
A8
7
ENC3
11
10
4
5
Y8
8
1
GND
R6011
R657
47k
68
TC74VCX541FT
C647
IC616
20
1
OE1
R6012
19
2
R658
ENY2S
47k
68
A1
ENC4
18
8
ENY3S
3
1
Y1
A2
5
4
ENC5
17
4
2
7
ENY4S
Y2
6
3
A3
ENC6
16
ENY5S
5
3
6
Y3
A4
7
2
ENC7
15
6
4
5
ENY6S
Y4
A5
8
1
ENC8
14
7
1
8
ENY7S
Y5
5
4
A6
ENC9
13
ENY8S
8
2
7
Y6
A7
6
3
ENY0
12
9
3
6
ENY9S
Y7
A8
7
2
ENY1
11
10
4
5
Y8
8
1
GND
R6015
R659
47k
68
TC74VCX541FT
GNDD
20
R6013
19
R660
47k
68
ENY2
18
8
1
Y1
5
4
ENY3
17
2
7
Y2
3
6
ENY4
16
3
6
Y3
7
2
ENY5
15
4
5
Y4
8
1
ENY6
14
1
8
Y5
5
4
ENY7
13
2
7
Y6
6
3
ENY8
12
3
6
Y7
7
2
ENY9
11
4
5
Y8
8
1
R6014
R661
47k
68
GNDD
V+5A
R675
0
C668
(1608)
NM
C633
R683
IC613
C627
1
24
R684
100u/16
IN1A
NM
ADS
C634
10u/6.3
2
23
IN1B
(2125)
REF1
0.1u/10
V+3DA
3
22
C635
GND_1
REF2
0.1u/10
4
21
ISET
R676
VCC_3
1.8k
(F)
5
20
C636
NC
OUT1
C650
C628
6
IN2A
19
100p/50
GND_3
C637
10u/6.3
7
18
0.1u/10
IN2B
(2125)
OUT2
0.1u/10
8
17
VCC_1
VCC_2
C629
9
16
IN3A
OUT3
C638
C651
10u/6.3
10
15
IN3B
(2125)
GND_2
0.1u/10
0.1u/10
11
14
MUXSEL
300
R671
(F)
VDD
12
13
SCL
R656
300
(F)
SDA
C652
R655
300
(F)
0.1u/10
SM5309AV
Video Filter
C656
NM
GNDD
V+5A
C658
C659
NM
NM
L608
R6008
ATL7015-A
Q601
(2125)
10u
0
2SA1576A(QR)
GNDD
V+5A
C660
C661
NM
NM
L609
R6009
ATL7015-A
Q602
(2125)
10u
0
2SA1576A(QR)
GNDD
V+5A
C663
C662
NM
NM
L610
R6010
ATL7015-A
Q603
(2125)
10u
2SA1576A(QR)
0
GNDD
SC-09TX
7
AE
3/8
AE
1/8,2/8,5/8
V+3S
1:16B;2:16G;5:1C
0.1u/10
RXDV
4:12A
UCWP
20
VCC
19
OE2
18
R693
DCK
22
Y1
17
R694
DE
47
Y2
16
HSYNC
R695
47
Y3
15
R696
VSYNC
47
Y4
14
1
8
D10
Y5
13
7
D11
LINH
2
Y6
12
3
6
D28
VMT
Y7
11
4
5
D29
Z2MT
Y8
Z3MT
R685
22
Z4MT
0.1u/10
EXVS
OSDDT
20
VCC
OSDCK
19
R686
OE2
22
OSDCS
18
1
8
D30
Y1
OSDRST
17
2
7
D31
Y2
CEXOE
16
D32
3
6
Y3
CEXST
15
4
5
D33
Y4
CEXCK
14
1
8
D34
Y5
CEXDT
13
7
D35
2
Y6
12
3
6
D6
Y7
MCVI
11
4
5
D7
Y8
R687
SCVI
22
0.1u/10
MCVO
20
VCC
19
R688
SCVO
OE2
22
18
8
D16
1
Y1
R663
17
0
2
7
D17
LCDCV
Y2
16
D18
3
6
Y3
15
4
5
D19
Y4
14
1
8
D20
Y5
13
D21
2
7
Y6
12
3
6
D22
Y7
GNDD
11
4
5
D23
Y8
R6003
100
R689
WPCK1
1
22
WPDT1
2
WPCS1
3
WPRST1
4
WPBY1
R6004
100
MSYI
MSCI
SSYI
SSCI
MSYO
MSCO
SEXST
SEXOE
SEXCK
SEXDT
SDET1
SDET2
10k
CDET1
C648
CDET2
10u/6.3
(2125)
C649
10u/6.3
(2125)
R690
MYO
0
R691
MPBO
0
R692
MPRO
0
L2_3
L2_2
L2_1
V+3R3VC
L1_3
L611
L1_2
QTL1013-A
L1_1
VCSDA
VCSCL
MYO
MPBO
MPRO
MCVO
SYO
SPBO
SPRO
MYI
MPBI
MSYO
MPRI
SYI
SPBI
SPRI
MSCO
2:1A;4:12D;5:12B
2:16F;4:12D;5:1A
7
8
HDMI ASSY
A
AE
4/8
AE
5/8
5:5H
EXIC
AE
4/8
4:1H
UCDP
B
CN601
VKN1428-A
1
LCDINH
2
XVMUTE
3
XZ2MUTE
4
XZ3MUTE
5
XZ4MUTE
6
VSYNC
7
OSDDT
8
OSDCLK
9
OSDCS
10
OSDRST
CEXPOE
11
12
CEXPST
13
CEXPCK
14
CEXPDT
15
GNDA
16
MRCVBSIN
17
GNDA
18
SRCVBSIN
19
GNDA
20
MRCVBSOUT
21
GNDA
SRCVBSOUT
22
23
GNDA
24
LCDCVBS
C
GNDD
GNDDISP
CN602
VKN1430-A
8
1
WPCK
7
2
WPDT
6
3
WPCS
5
4
WPRST
BUSY
5
6
GNDDISP
7
MRSYIN
8
GNDA
9
MRSCIN
10
GNDA
11
SRSYIN
12
GNDA
13
SRSCIN
14
GNDA
15
MRSYOUT
GNDA
16
17
MRSCOUT
18
GNDA
19
SEXPST
20
SEXPOE
21
SEXPCK
D
22
SEXPDT
23
SDET1
24
SDET2
25
CDET1
26
CDET2
GNDD
CN603
VKN1434-A
1
LINE2_3
2
LINE2_2
3
LINE2_1
4
LINE1_3
5
LINE1_2
6
LINE1_1
GNDA
7
8
MRYOUT
9
GNDA
10
MRPBOUT
11
GNDA
12
MRPROUT
13
GNDA
14
SRYOUT
E
15
GNDA
16
SRPBOUT
17
GNDA
SRPROUT
18
19
GNDA
20
MRYIN
21
GNDA
22
MRPBIN
23
GNDA
24
MRPRIN
25
GNDA
SRYIN
26
27
GNDA
28
SRPBIN
29
GNDA
30
SRPRIN
GNDD
AVIO
AE
2/8,4/8,5/8
UCHD
F
AE
3/8
133
8
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