Kurzweil K2600 Series User Manual

Kurzweil K2600 Series Service Manual
7-24
Audio Board (keyboard models)–C DACs, D DACs, Filters (2 of 4)
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
A
B
C
D
A
B
C
D
JP2
DAC VOLTAGE SELECT
1 2 3
YOUNG CHANG CO., LTD.
of Young Chang Co., Ltd. is prohibited.
Reproduction without the express written consent
Filename:
Doc:
Mfg:
Eng:
Sht
By:
Date:
of
Rev:
K2600K AUDIO PCB SV2.5
C DACs, D DACs, Filters
MRL
021212 RDV0
021212D0 9/21/99
02 04
R132
22.6K
12
R112
226K
12
R92
57.6K
12
R131
22.6K
12
R111
226K
12
R91
57.6K
12
R130
22.6K
12
R110
226K
12
R90
57.6K
12
R129
22.6K
12
R109
226K
12
R89
57.6K
12
R136
4.12K
12
R124
53.6K
12
R123
6.98K
12
R128
6.98K
12
R116
4.64K
12
R104
76.8K
12
R103
15.0K
12
R108
15.0K
12
R96
4.64K
12
R84
31.6K
12
R83
8.45K
12
R88
8.45K
12
R72
3.57K
12
R76
6.04K
12
R135
4.12K
12
R122
53.6K
12
R121
6.98K
12
R127
6.98K
12
R115
4.64K
12
R102
76.8K
12
R101
15.0K
12
R107
15.0K
12
R95
4.64K
12
R82
31.6K
12
R81
8.45K
12
R87
8.45K
12
R71
3.57K
12
R75
6.04K
12
R134
4.12K
12
R120
53.6K
12
R119
6.98K
12
R126
6.98K
12
R114
4.64K
12
R100
76.8K
12
R99
15.0K
12
R106
15.0K
12
R94
4.64K
12
R80
31.6K
12
R79
8.45K
12
R86
8.45K
12
R70
3.57K
12
R74
6.04K
12
R133
4.12K
12
R118
53.6K
12
R117
6.98K
12
R125
6.98K
12
R113
4.64K
12
R98
76.8K
12
R97
15.0K
12
R105
15.0K
12
R93
4.64K
12
R78
31.6K
12
R77
8.45K
12
R85
8.45K
12
R69
3.57K
12
R73
6.04K
12
+
C88
47uF
12
+
C86
47uF
12
+
C84
47uF
12
+
C82
47uF
12
C128
2200PF 1%
12
C127
2200PF 1%
12
C126
2200PF 1%
12
C120
150PF 2%
12
C116
2200PF 1%
12
C108
68PF 2%
12
C104
2200PF 1%
12
C96
180PF 2%
12
C87
DNS
12
C92
2200PF 1%
12
C119
150PF 2%
12
C115
2200PF 1%
12
C107
68PF 2%
12
C103
2200PF 1%
12
C95
180PF 2%
12
C85
DNS
12
C91
2200PF 1%
12
C118
150PF 2%
12
C114
2200PF 1%
12
C106
68PF 2%
12
C102
2200PF 1%
12
C94
180PF 2%
12
C83
DNS
12
C90
2200PF 1%
12
C125
2200PF 1%
12
C117
150PF 2%
12
C113
2200PF 1%
12
C105
68PF 2%
12
C101
2200PF 1%
12
C93
180PF 2%
12
C81
DNS
12
C89
2200PF 1%
12
C80
220pF
12
C75
220pF
12
C77
220pF
12
C76
220pF
12
C124
1000PF 2%
12
C100
270PF 2%
12
C112
47PF 2%
12
C123
1000PF 2%
12
C99
270PF 2%
12
C111
47PF 2%
12
C122
1000PF 2%
12
C98
270PF 2%
12
C110
47PF 2%
12
C121
1000PF 2%
12
C97
270PF 2%
12
C109
47PF 2%
12
C71
0.1uF
12
C78
0.1uF
12
C73
0.1uF
12
C74
0.1uF
12
C72
0.1uF
12
C69
0.1uF
12
C79
0.1uF
12
+
C197
47uF
12
+
C196
47uF
12
+
C195
47uF
12
+
C194
47uF
12
+
C70
100uF 6.3V
12
L2
2.5T
12
U12
AD1865
21
+5VA
4
+5VD
22
-5VA
15
AGNDL
28
AGNDR
7
CLK
8
DGND
19
LADJ
10
LDIN
9
LLE
13
LRF
14
LSJ
20
LTRIM
11
NC1
16
NC2
27
NC3
25
NC4
18
NC5
24
RADJ
5
RDIN
6
RLE
2
RRF
1
RSJ
23
RTRIM
17
LIOUT
12
LVOUT
26
RIOUT
3
RVOUT
U13
AD1865
21
+5VA
4
+5VD
22
-5VA
15
AGNDL
28
AGNDR
7
CLK
8
DGND
19
LADJ
10
LDIN
9
LLE
13
LRF
14
LSJ
20
LTRIM
11
NC1
16
NC2
27
NC3
25
NC4
18
NC5
24
RADJ
5
RDIN
6
RLE
2
RRF
1
RSJ
23
RTRIM
17
LIOUT
12
LVOUT
26
RIOUT
3
RVOUT
+
-
U21
NE5532A
3
2
1
+
-
U20
NE5532A
3
2
1
+
-
U19
NE5532A
3
2
1
+
-
U18
NE5532A
3
2
1
+
-
U17
NE5532A
3
2
1
+
-
U16
NE5532A
3
2
1
+
-
U15
NE5532A
3
2
1
+
-
U14
NE5532A
3
2
1
+
-
U21
NE5532A
5
6
84
7
+
-
U20
NE5532A
5
6
84
7
+
-
U19
NE5532A
5
6
84
7
+
-
U18
NE5532A
5
6
84
7
+
-
U17
NE5532A
5
6
84
7
+
-
U16
NE5532A
5
6
84
7
+
-
U15
NE5532A
5
6
84
7
+
-
U14
NE5532A
5
6
84
7
CLEFT {3-C4,4-B1}
DCLKB {1-A8}
DACLE {1-A8}
~15 ~15
DACDA {1-A8}
DACDB {1-A8}
DCLKD {1-A8}
+15 +15
~5ANA +5ANA
CRIGHT {3-C6,4-D1}
~15 ~15
+15 +15
DLEFT {3-D1,4-B1}
~15 ~15
+15 +15
Vcc
DRIGHT {3-D4,4-D1}
~15 ~15
+15 +15
DNS
DNS
DNS
DNS

Kurzweil K2600 Series Specifications

General

Polyphony	48 voices
Multitimbral	16 parts
MIDI	In, Out, Thru
Type	Workstation
Synthesis Method	VAST (Variable Architecture Synthesis Technology)
Keyboard	61, 76, or 88 keys
Sequencer	16-track sequencer
Display	LCD
Sampling	Yes, with optional sampling option
Storage	Floppy disk
Audio Outputs	Stereo outputs
Audio Inputs	Stereo inputs