Kurzweil K2600 Series, Service Manual

Page: 136 / 172

Kurzweil K2600 Series Service Manual
7-8
CPU Board–Sound Memory Interface (6 of 8)
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
A
B
C
D
A
B
C
D
DGND
VCC
U21
XP9536
K2501SC1.8
21 32 41
10 23 31
11
RFSHCLKOUT
28
SIZE_0
4
SIZE_1
27
SIZE_2
3
SIZE_3
40
SMA20
8
SMA21
37
SMA22
34
SMA23
13
SMA24
25
SMA25
18
SMA26
22
SMB
17
TCK
5
VLSICLK
7
AS
6
CPUOE
42
GLOBALOE
29
SCSISNS0
44
SCSISNS1
1
SCSISNS2
20
SMAV
39
WRITE
14
SCSI_DC
15
TDI
30
TDO
16
TMS
38
B_ROMCS
24
CAS1
2
CAS2
9
CAS3
12
CAS4
36
P_ROMCS
35
RAMCS
26
RAMRAS1
43
RAMRAS2
33
ROMCS
19
ROMOE
JP803
ID JUMPER PORT
ID JUMPER PORT
8 7
4 3
5
6
1 2
U26
74LCX244
2
A[1]
4
A[2]
6
A[3]
8
A[4]
11
A[5]
13
A[6]
15
A[7]
17
A[8]
10
GND
1
OE1
19
OE2
18
B[1]
16
B[2]
14
B[3]
12
B[4]
9
B[5]
7
B[6]
5
B[7]
3
B[8]
20
VCC
U27
74LCX245
2
A[1]
3
A[2]
4
A[3]
5
A[4]
6
A[5]
7
A[6]
8
A[7]
9
A[8]
1
DIR
10
GND
19
G
18
B[1]
17
B[2]
16
B[3]
15
B[4]
14
B[5]
13
B[6]
12
B[7]
11
B[8]
20
VCC
U25
74LCX245
2
A[1]
3
A[2]
4
A[3]
5
A[4]
6
A[5]
7
A[6]
8
A[7]
9
A[8]
1
DIR
10
GND
19
G
18
B[1]
17
B[2]
16
B[3]
15
B[4]
14
B[5]
13
B[6]
12
B[7]
11
B[8]
20
VCC
U30
74LCX245
2
A[1]
3
A[2]
4
A[3]
5
A[4]
6
A[5]
7
A[6]
8
A[7]
9
A[8]
1
DIR
10
GND
19
G
18
B[1]
17
B[2]
16
B[3]
15
B[4]
14
B[5]
13
B[6]
12
B[7]
11
B[8]
20
VCC
U31
74LCX245
2
A[1]
3
A[2]
4
A[3]
5
A[4]
6
A[5]
7
A[6]
8
A[7]
9
A[8]
1
DIR
10
GND
19
G
18
B[1]
17
B[2]
16
B[3]
15
B[4]
14
B[5]
13
B[6]
12
B[7]
11
B[8]
20
VCC
U20
NC7SZ04
2 4
R99
220
1
2
R100
330
1
2
R95 1K 1 2
R80 10K 1 2
R79 10K 1 2
R78 10K 1 2
R77 10K 1 2
R102 100 1 2
R103 100 1 2
R104 100 1 2
R105 100 1 2
R106 100 1 2
R107 100 1 2
R108 100 1 2
R109 100 1 2
R110 100 1 2
R111 100 1 2
R112 100 1 2
R113 100 1 2
R114 100 1 2
R115 100 1 2
R116 100 1 2
R117 100 1 2
U24
74VHC574
11
CLK
2
D[1]
3
D[2]
4
D[3]
5
D[4]
6
D[5]
7
D[6]
8
D[7]
9
D[8]
1
OE
19
Q[1]
18
Q[2]
17
Q[3]
16
Q[4]
15
Q[5]
14
Q[6]
13
Q[7]
12
Q[8]
U23
74VHC574
11
CLK
2
D[1]
3
D[2]
4
D[3]
5
D[4]
6
D[5]
7
D[6]
8
D[7]
9
D[8]
1
OE
19
Q[1]
18
Q[2]
17
Q[3]
16
Q[4]
15
Q[5]
14
Q[6]
13
Q[7]
12
Q[8]
U22
74VHC574
11
CLK
2
D[1]
3
D[2]
4
D[3]
5
D[4]
6
D[5]
7
D[6]
8
D[7]
9
D[8]
1
OE
19
Q[1]
18
Q[2]
17
Q[3]
16
Q[4]
15
Q[5]
14
Q[6]
13
Q[7]
12
Q[8]
U29
74VHC245
2
A[1]
3
A[2]
4
A[3]
5
A[4]
6
A[5]
7
A[6]
8
A[7]
9
A[8]
1
DIR
19
G
18
B[1]
17
B[2]
16
B[3]
15
B[4]
14
B[5]
13
B[6]
12
B[7]
11
B[8]
U28
74VHC245
2
A[1]
3
A[2]
4
A[3]
5
A[4]
6
A[5]
7
A[6]
8
A[7]
9
A[8]
1
DIR
19
G
18
B[1]
17
B[2]
16
B[3]
15
B[4]
14
B[5]
13
B[6]
12
B[7]
11
B[8]
R101
1K
1
2
R98
1K
1
2
R96
1K
1
2
C116
.01uF
1
2
C115
.01uF
1
2
C110
.01uF
1
2
C109
.1uF
1
2
C84
.1uF
1
2
C80
.1uF
1
2
C7
.1uF
1
2
C79
.1uF
1
2
C86
.1uF
1
2
C92
.1uF
1
2
C91
.1uF
1
2
C88
.1uF
1
2
C87
.1uF
1
2
C78
.1uF
1
2
C83
.1uF
1
2
C82
.1uF
1
2
C89
.1uF
1
2
R12
56
1 2
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:
K2600 CPU BOARD
Sound Memory Interface
Mike Richmond
021206-001 RDV2
021206D2 1/5/00
6 8
SCSI_DISCON {4-C1}
B_ROMCS {7-C1}
P_ROMCS {7-C1}
VCC
ROMOE {7-C1}
VCC
ROMA[21:00] {7-C1}
VLSICLK {5-D1,7-D1,8-C8}
VLSICLK2
SMA[21] ROMA[21]
SMA[20] ROMA[20]
SMA[26:00] {5-C8,7-C1}
SMA[19] ROMA[19]
SMA[18] ROMA[18]
SMA[17] ROMA[17]
VCC VCC VCC VCC VCC VCC
SMA[16] ROMA[16]
ROMD[15:00] {7-D1}
SMD[15] ROMD[15]
SMD[14] ROMD[14]
VCC
SMD[13] ROMD[13]
SMD[12] ROMD[12]
VCC
SMD[11] ROMD[11]
SMD[10] ROMD[10]
SMA[15] ROMA[15] SMD[09] ROMD[09]
SMA[14] ROMA[14] SMD[08] ROMD[08]
SMA[13] ROMA[13]
VCC
SMA[12] ROMA[12]
SMAV {5-A8,7-D1} SMA[11] ROMA[11]
SMB {5-B8} SMA[10] ROMA[10]
VCC SMA[26]
SMA[09] ROMA[09]
SMA[25]
SMA[08] ROMA[08]
SMA[24] SMRAS1
SMA[23] SMRAS2
SMA[22]
SMA[21]
SMCAS0 SMD[07] ROMD[07]
SMA[20] SMCAS1 SMD[06] ROMD[06]
SIZE[3:0] {1-B8}
SMCAS2 SMD[05] ROMD[05]
VCC
SIZE[3] SMCAS3 SMD[04] ROMD[04]
SMA[07] ROMA[07]
SIZE[2] SMD[03] ROMD[03]
SMA[06] ROMA[06]
SIZE[1] SMD[02] ROMD[02]
SMA[05] ROMA[05]
SIZE[0] SMD[01] ROMD[01]
SMA[04] ROMA[04]
VCC
SMD[00] ROMD[00]
SCSISNS2 {4-D8}
SMA[03] ROMA[03]
SCSISNS1 {4-D8}
SMA[02] ROMA[02]
SCSISNS0 {4-D8}
SMA[01] ROMA[01]
SMA[00] ROMA[00]
VCC
ROMCS
TCLK {1-D1,5-A8}
TDO_DEV2 {5-A8}
SMRAS1 RAMRAS1
RAMRAS1 {7-A1}
TMS {1-C1,5-A8}
SMRAS2 RAMRAS2
RAMRAS2 {7-A1}
TDO_DEV1 {1-C2}
SMCAS0 RAMCAS0
RAMCAS0 {7-A1}
SMCAS1 RAMCAS1
RAMCAS1 {7-A1}
CPUOE {1-D8,2-D1,3-B1,4-B1}
SMCAS2 RAMCAS2
RAMCAS2 {7-A1}
AS {1-B1}
SMCAS3 RAMCAS3
RAMCAS3 {7-A1}
WRITE {1-B1,2-B1,3-D1,5-A1,8-A1}
SMWRITE RAMWE
RAMWE {7-A1}
BD[15:00] {2-A1,3-A1,5-D1,8-A8}
VCC
RAMA[11:00] {7-A1}
RAMD[15:00] {7-C1}
BD[03] SMD[15] RAMD[15]
BD[02] SMD[14] RAMD[14]
BD[01] SMD[13] RAMD[13]
BD[00] SMD[12] RAMD[12]
SMA[22] RAMA[11] SMD[11] RAMD[11]
SMA[20] RAMA[10] SMD[10] RAMD[10]
3VCC
SMA[18] RAMA[09]
3VCC
SMD[09] RAMD[09]
SMA[08] RAMA[08] SMD[08] RAMD[08]
SMWRITE {5-B8,7-D1}
3VCC
IDPORTCS {8-A8}
SMA[07] RAMA[07] SMD[07] RAMD[07]
SMA[06] RAMA[06] SMD[06] RAMD[06]
SMA[05] RAMA[05] SMD[05] RAMD[05]
SMA[04] RAMA[04] SMD[04] RAMD[04]
SMA[03] RAMA[03] SMD[03] RAMD[03]
SMA[02] RAMA[02] SMD[02] RAMD[02]
SMA[01] RAMA[01] SMD[01] RAMD[01]
SMA[00] RAMA[00] SMD[00] RAMD[00]
RAMCS
SMD[15:00] {5-D8}
7-8 FUTURE EXP
5-6 FUTURE EXP
3-4 FUTURE EXP
1-2 DIGITAL I/O
This line must be serial. No "T" or "Y" splits.
NC
JTAG DEV2
Eng:
Sht. 6 of 8
Date:
Doc: