Audio Board (Rack Models)-C Dacs, D Dacs, Filters (2 Of 4) - Kurzweil K2600 Series Service Manual

1 2
U12
7 12
CLK LVOUT
20 13
LTRIM LRF
19 17
DCLKB {1-A8}
A LADJ LIOUT
9 14
DACLE {1-A8}
LLE LSJ
10 1
DACDA {1-A8}
LDIN RSJ
5 26
DACDB {1-A8}
RDIN RIOUT
6 2
DCLKD {1-A8}
RLE RRF
24 3
RADJ RVOUT
23 21
RTRIM +5VA
4 22
+5VD -5VA
27 11
NC3 NC1
25 16
NC4 NC2
18 15
NC5 AGNDL
8 28
DGND AGNDR
AD1865
C71
~5ANA
0.1uF
B
U13
7 12
CLK LVOUT
20 13
LTRIM LRF
19 17
LADJ LIOUT
9 14
LLE LSJ
10 1
LDIN RSJ
5 26
RDIN RIOUT
6 2
RLE RRF
24 3
RADJ RVOUT
23 21
RTRIM +5VA
4 22
C +5VD -5VA
27 11
NC3 NC1
25 16
Vcc NC4 NC2
C69
18 15
NC5 AGNDL
0.1uF
8 28
DGND AGNDR
AD1865
JP2
DAC VOLTAGE SELECT
DNS
1
L2
+
C72
C70 2.5T
0.1uF
100uF 6.3V DNS
DNS
DNS
D
1 2
Audio Board (rack models)–C DACs, D DACs, Filters (2 of 4)
3
R73
6.04K
C77
1 2
C81
220pF
DNS
1 2
C89
1 2
1 2
2200PF 1%
1 2
C82 R69
C75
47uF 3.57K
220pF
1 2 1 2 2
-
+ 1
3
+
U14
NE5532A
C73 C78
0.1uF 0.1uF
R74
6.04K
+5ANA
1 2
C83
DNS
C90
1 2
2200PF 1%
1 2
C84 R70
47uF 3.57K
1 2 1 2 2
-
+ 1
3
+
U16
NE5532A
R75
6.04K
1 2
C85
DNS
C91
1 2
2200PF 1%
1 2
C86 R71
47uF 3.57K
1 2 1 2 2
-
C76
+ 1
220pF
3
1 2 +
U18
1 2
NE5532A
C80
220pF
C74 C79
0.1uF 0.1uF
R76
6.04K
1 2
C87
DNS
C92
1 2
2200PF 1%
1 2
C88 R72
2
47uF 3.57K
1 2 1 2 2
-
+
1
3
+
U20
NE5532A
3
4 5
C101
2200PF 1%
1 2
~15
R77 R85 R97
8.45K 8.45K 15.0K
1 2 1 2 5 1 2 1
+
7
6
C93 C105
-
U14
180PF 2% 68PF 2%
1 2 NE5532A 1 2
+15
R78 R93 R98
31.6K 4.64K 76.8K
1 2 1 2 1 2
C97
R89
270PF 2%
57.6K
C102
2200PF 1%
1 2
~15
R79 R86 R99
8.45K 8.45K 15.0K
1 2 1 2 5 1 2 1
+
7
6
C94 C106
-
U16
180PF 2% 68PF 2%
1 2 NE5532A 1 2
+15
R80 R94 R100
31.6K 4.64K 76.8K
1 2 1 2 1 2
C98
R90
270PF 2%
57.6K
C103
2200PF 1%
1 2
~15
R81 R87 R101
8.45K 8.45K 15.0K
1 2 1 2 5 1 2 1
+
7
6
C95 C107
-
U18
180PF 2% 68PF 2%
1 2 NE5532A 1 2
+15
R82 R95 R102
31.6K 4.64K 76.8K
1 2 1 2 1 2
C99
R91
270PF 2%
57.6K
C104
2200PF 1%
1 2
~15
R83 R88 R103
8.45K 8.45K 15.0K
1 2 1 2 5 1 2 1
+
7
6
C96 C108
-
U20
180PF 2% 68PF 2%
1 2 NE5532A 1 2
+15
R84 R96 R104
31.6K 4.64K 76.8K
1 2 1 2 1 2
C100
R92
270PF 2%
57.6K
4 5
6 7
C113 C125
2200PF 1% 2200PF 1%
1 2 1 2
~15
R105 R117 R125
15.0K 6.98K 6.98K
2 3 1 2 1 2 5
+
1
2 6
C117
-
U15
150PF 2%
NE5532A 1 2
+15
R113 R118
4.64K 53.6K
1 2 1 2 1
C109
C121
R109 R129
47PF 2%
1000PF 2%
226K 22.6K
C114
2200PF 1% 2200PF 1%
1 2 1
~15
R106 R119 R126
15.0K 6.98K 6.98K
2 3 1 2 1 2 5
+
1
2 6
C118
-
U17
150PF 2%
NE5532A 1 2
+15
R114 R120
4.64K 53.6K
1 2 1 2 1
C110
C122
R110 R130
47PF 2%
1000PF 2%
226K 22.6K
C115
2200PF 1% 2200PF 1%
1 2
~15
R107 R121 R127
15.0K 6.98K 6.98K
2 3 1 2 1 2 5
+
1
2 6
C119
-
U19
150PF 2%
NE5532A 1 2
+15
R115 R122
4.64K 53.6K
1 2 1 2 1
C111
C123
R111 R131
47PF 2%
1000PF 2%
226K 22.6K
C116
2200PF 1% 2200PF 1%
1 2
~15
R108 R123 R128
15.0K 6.98K 6.98K
2 3 1 2 1 2 5
+
1
2 6
C120
-
U21
150PF 2%
NE5532A 1 2
+15
R116 R124
4.64K 53.6K
1 2 1 2 1
C112
C124
R112 R132
47PF 2%
1000PF 2%
226K 22.6K
6 7
Kurzweil K2600 Series Service Manual
8
CLEFT {3-C4,4-B1}
A
+ C194
47uF
+
7
-
U15
NE5532A
R133
4.12K
2
C126
2
CRIGHT {3-C6,4-D1}
+
C195
47uF
+
7
-
U17
NE5532A B
R134
4.12K
2
C127
1 2
DLEFT {3-D1,4-B1}
+
C196
47uF
+
7
-
U19
NE5532A
R135
4.12K
2
C
C128
1 2
DRIGHT {3-D4,4-D1}
+ C197
47uF
+
7
-
U21
NE5532A
R136
4.12K
2
D
YOUNG CHANG CO., LTD.
Reproduction without the express written consent
of Young Chang Co., Ltd. is prohibited.
K2600R Audio PCB SV2.5
C DACs, D DACs, Filters
Filename: 021218C0 Date: 9/15/99
Eng: By: MRL
Mfg: Sht 02 of 04
Doc: 021218 Rev: RCV0
8
7-19