Service manual
– 41 –
CD-C492/492C
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Figure 41 SCHEMATIC DIAGRAM (16/20)
ICA19
AK4321
20 BIT 2 CH
D/A CONVERTER
CA59
0.01
CA60 0.1
CA61 0.1
CA62 100/16
CA64
10/16
CA63
10/16
CA65 0.015
CA66 0.015
CA58
220/6.3
CA56 0.01
CA57 10/16
ICA18
ZR38600
DOLBY AC-3/5.1CH
MPEG2 AUDIO
DECORDER
CA46
0.1
CA39
0.1
CA38
0.1
CA37
0.001
CA40
0.1
CA41
0.1
CA42
0.001
CA47
0.001
CA48
0.1
CA49
0.1
CA43
0.001
CA44
0.1
CA45
0.1
ICA20
AK4321
20 BIT 2 CH
D/A CONVERTER
CA74
0.01
CA75 0.1
CA76 0.1
CA77
100/16
CA80
10/16
CA79
10/16
CA81
0.015
CA82
0.015
CA73
220/6.3
CA71 0.01
CA72 10/16
CA69
0.015
CA70
0.015
CA88
2.2/50
CA87
0.001
CA84
47P(CH)
8
4
CA86
0.022
CA85
0.022
CA83
2.2/50
ICA22
BU4066BCF
SELECTOR
4
5
3
8
1
9
2
6
12
10
13
11
CA67
10/16
CA68
10/16
7
CA91
0.022
CA92
0.022
1 2 3 4
5
6
7
8
CA54
18P(CH)
CA55
22P(CH)
XA11
12.288MHz
CA53
0.001
CA52
10/16
ICA17
TC7WU04F
DUAL 2-INPUT
NAND GATE
QA03
KRC107 S
QA02
KRA107 S
QA01
KRC107 S
CA50
100/10
CA96
47/25
CA95
47/25
LA12
0.82µ
RA63
220
RA64
220
RA41
10K
RA73
220
RA74
220
RA67
220
RA68
220
RA76
100K
RA77
2.7K
RA80
100K
RA75
1K
RA49
270
RA48
270
RA59
1M
RA82
100K
RA61 27K
RA62 27K
RA43
10K
RA71
27K
RA72
27K
RA65
27K
RA66
27K
RA78
18K
RA79
1K
RA50
1K
RA52
1K
RA53
1K
RA40
1K
RA42
1K
RA44
270
RA83
100K
RA
36
1K
RA37
1K
DA14
1SS133
RA04 22
RA03 22
RA06 22
RA05 22
CA93
2.2/50
RA85 3.3K
1
3
2
5
6
7
8
4
RA88 22K
RA87 22K
RA89
22K
RA90
22K
RB03
27K
RB04
27K
RB05
100
RB06
100
RB01
22K
RB02
22K
RB07
100K
RB08
100K
CB01
100P
CB02
100P
CB04
0.022
CB03
0.022
LA18
0.82µH
LA16
0.82µH
RA56
270
RA57
270
R
A54
270
R
A55
270
QB01
2SD468 C
RB12
390
RB11
390
CB12
100/10
CB11
47/25
CB13
0.022
ZDB11
MTZJ3.9B
ZDA02
MTZJ8.2A
ZDA01
MTZJ8.2A
RA93 680
RA94 680
RA95 680
RA96
680
CB06
220P
CB05 220P
7
5
6
RA60
10K
LA11
0.82µ
CB18
0.001
CB17
0.001
CB20
0.001
CB22
0.001
CB23
0.001
CKS
DVDD
DVSS
XT0
XT1
PD
BICK
SDATA
LRCK
SMUTE
DFS
DEM0 DEM1
DIF0
DIF1
BVDD
VCOM
VREF
DZF
TTL
AVSS
AVDD
SDB
VDD
RESET
SDA
VDD
SDE
TCK
SCK
TDI
SI
GND
SCKA
WSA
VDD
WSB
SDF
D17
SCKB
D16
SPFTX/SDG
D15
A0
GND
SS
TMS
INT
VDD
D14/RDY
GND
A1
A2
A3
VDD
D13/C/D
D12/ERR
A4
VDD
GPIO5
GPIO4
GND
A5
A6
D11/PP7
GPIO3
A7
A8
D10/PP6
A9
A10
GND
VDD
A11
VDD
GND
RD
WR
L-CH
R-CH
CKS
DVDD
DVSS
XT0
XT1
PD
BICK
SDATA
LRCK
SMUTE
DFS
DEM0 DEM1
DIF0
DIF1
BVDD
VCOM
VREF
DZF
TTL
AVSS
AVDD
+
–
Vcc
GND
L-CH
C-CH
SW-CH
DGND
+3.3V
DEM1
DEM0
SW_ON/OFF
SW-CH
LS-CH
RS-CH
C-CH
–
+
+
–
R-CH
L-CH
R-CH
+5V
A+12V
AGND
A-12V
1 2 3 4
5
6
7
8
9
D9/PP5
D8/PP4
SO
SELEX7
D4/PP0
D5/PP1
A15
GND
VDD
A14
D6/PP2
D7/PP3
A13
TOO
A12
A16
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
34
33
32
31
3029282726252423222120
1918
17
16
151413121110
35
50
49
32
31
5253545556575859
60
6162636465666768697071727374757677787980
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
81
CS
GND
SDD
VDD
GPIO2
GPIO1
GPIO0
VDD
SPFRX
XTO
XTI
GND
SCKIN
BYPASS
P/M
VDD
GNDA
FLTCAP
VCCA
GND
CLKOUT
D19
D18
A17
A18
A19
82
81
82
SDC
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
AOUTR
AOUTL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
AOUTL
AOUTR
ICA21
NJM4580M(1/2)
OPE AMP.
DOLBY PWB-G
1
2
3
1
2
3
2
1
ICB01
NJM4580M
OPE AMP.
9
10 11 12 13 14 15 16 17 18 19 20
1 2 3 4
5
6
7
8
9
10
CFWA01
AGND
RTIN
SW IN(SW OUT)
C IN(C OUT)
RS IN(RS OUT)
LS IN(LS OUT)
FWA1
L OUT
R OUT
LTIN
V1/V2
1 10
VGND
A+12V
A-12V
AGND
DEM1
DEM0
+5V(AC32B)
+5V(AC32A)
+5V(AC32A)
GND(D3)
GND(D4)
SP CONF
T
O MAIN PWB
P31 12-F
TO MAIN PWB
P3112-E
CFWU1
CFWU2
20
+B
+B
+B
+B
+B
–B
+B
+B
+3.3V
C-CH
RS-CH
LS-CH
3
0V
0V
0V
0V
0V
0V
7.8V
-7.8V
3.4V
4.0V
5.4V
0V
0V
7.8V
-7.8V
-7.8V
-7.8V
7.7V
7.8V
-7.8V
-7.8V
7.7V
7.7V
7.8V -7.8V
0V
0V
0V
0V
0V
0V
0V
0.1V
0V
0V
7.8V
-7.8V
2.3V
0V
2.3V
2.2V
3.9V
1.6V
1.6V
2.3V
4.6V
0V0V
0V
0V
0V
0V
0V
0V
1.6V
1.6V
3.9V
2.2V
4.6V
4.6V
4.6V
4.6V
4.6V
2.3V
2.3V
2.3V
0V
0V
0V
0V
0V
1.8V
3.3V
1.7V
1.7V
1.7V
0V
0V
0V
0V
0V
0V
0V
0V
0V
1.7V
1.7V
0V
0V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
1.8V
0V
3.3V
3.3V
3.3V
3.3V
3.8V
0V
0V
0V
0V
0V
0V
0V
0V
3.3V
3.3V
3.3V
1.6V
1.6V
1.6V
1.6V
1.0V
4.0V
0V
0V
0V
0V
0V
0V
0V
0V
14