Kurzweil PC2 Series User Manual

Kurzweil PC2 Series Service Manual
7-6
Engine Board–Sound ROM, Uart, Glue, Decoupling (page 4 of 5)
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
U20
ROM4MX16
23
13 32
11
A00
10
A01
9
A02
8
A03
7
A04
6
A05
5
A06
4
A07
42
A08
41
A09
40
A10
39
A11
38
A12
37
A13
36
A14
35
A15
34
A16
3
A17
2
A18
43
A19
44
A20
1
A21
33
BHE
15
D00
17
D01
19
D02
21
D03
24
D04
26
D05
28
D06
30
D07
16
D08
18
D09
20
D10
22
D11
25
D12
27
D13
29
D14
31
D15/A-1
12
CE
14
OE
DGND
VCC
U19
ROM4MX16
23
13 32
11
A00
10
A01
9
A02
8
A03
7
A04
6
A05
5
A06
4
A07
42
A08
41
A09
40
A10
39
A11
38
A12
37
A13
36
A14
35
A15
34
A16
3
A17
2
A18
43
A19
44
A20
1
A21
33
BHE
15
D00
17
D01
19
D02
21
D03
24
D04
26
D05
28
D06
30
D07
16
D08
18
D09
20
D10
22
D11
25
D12
27
D13
29
D14
31
D15/A-1
12
CE
14
OE
DGND:
J409
ROM Option
1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 59 61 63
32
A01
31
A02
30
A03
28
A04
27
A05
26
A06
24
A07
23
A08
22
A09
20
A10
19
A11
18
A12
16
A13
15
A14
14
A15
12
A16
11
A17
10
A18
8
A19
7
A20
6
A21
4
A22
3
A23
55
D00
54
D01
52
D02
51
D03
50
D04
48
D05
47
D06
46
D07
44
D08
43
D09
42
D10
40
D11
39
D12
38
D13
36
D14
35
D15
2
VCC1
34
VCC2
64
VCC3
58
CS
62
OE
56
PRSNT
60
WE
DGND:
J410
ROM Option
1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 59 61 63
32
A01
31
A02
30
A03
28
A04
27
A05
26
A06
24
A07
23
A08
22
A09
20
A10
19
A11
18
A12
16
A13
15
A14
14
A15
12
A16
11
A17
10
A18
8
A19
7
A20
6
A21
4
A22
3
A23
55
D00
54
D01
52
D02
51
D03
50
D04
48
D05
47
D06
46
D07
44
D08
43
D09
42
D10
40
D11
39
D12
38
D13
36
D14
35
D15
2
VCC1
34
VCC2
64
VCC3
58
CS
62
OE
56
PRSNT
60
WE
U21
16V8-15
16V8
11
OE
1
CLK
2
I1
3
I2
4
I3
5
I4
6
I5
7
I6
8
I7
9
I8
12
O1
13
O2
14
O3
15
O4
16
O5
17
O6
18
O7
19
O8
VCC: 44 GND: 22
U22
ST16C550CJ44
31
A0
30
A1
29
A2
14
CS0
15
CS1
39
MR
10
RCLK
25
RD
11
SIN
21
WR
18
XIN
28
ADS
16
CS2
40
CTS
42
DCD
41
DSR
24
RD
43
RI
20
WR
2
D0
3
D1
4
D2
5
D3
6
D4
7
D5
8
D6
9
D7
26
DDIS
33
INTR
13
SOUT
19
XOUT
17
BAUDOUT
37
DTR
38
OUT1
35
OUT2
36
RTS
32
RXRDY
27
TXRDY
C91
0.1 uF
12
C21
0.1 uF
12
C38
0.1 uF
12
C36
0.1 uF
12
C34
0.1 uF
12
C32
0.1 uF
12
C30
0.1 uF
12
C28
0.1 uF
12
C26
0.1 uF
12
C24
0.1 uF
12
C20
0.1 uF
12
C18
0.1 uF
12
C16
0.1 uF
12
C37
0.1 uF
12
C35
0.1 uF
12
C33
0.1 uF
12
C31
0.1 uF
12
C29
0.1 uF
12
C27
0.1 uF
12
C25
0.1 uF
12
C19
0.1 uF
12
C17
0.1 uF
12
C15
0.1 uF
12
U10
74VHC139
14
A
13
B
15
G
12
Y0
11
Y1
10
Y2
9
Y3
GND
VCC
U18
NC7SZ08
5
3
1
2
4
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:
PC88 II ENGINE
SOUND ROM, UART, GLUE, DECOUPLING
T. THOMPSON
021197 D V4
P82RDV4 9/19/2000
45
U1
74VHC14
98
R28
110
12
R25
10K
12
R24
10K
12
R27
47
12
R68
1K
12
R26
47
12
VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC
SMA[24]
SROMCS
SMA[25]
EXROM0CS
SSMRCS {2-A8}
EXROM1CS
MSMRCS {2-B8}
VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC
SMOE {2-A8}
SMA[01] SMA[01]
SMA[23] SMA[23]
SMA[22] SMA[22]
SMA[21] SMA[21]
SMA[20]
SMA[20]
SMA[19] SMA[19]
SMA[18] SMA[18]
SMA[17] SMA[17]
SMA[16] SMA[16]
SMA[15] SMA[15]
SMA[14] SMA[14]
SMA[13] SMA[13]
SMA[12] SMA[12]
SMA[11] SMA[11]
SMA[10] SMA[10]
MRXD {1-D6}
SMA[09] SMD[15] SMA[09] SMD[07]
SMA[08] SMD[14] SMA[08] SMD[06]
SMA[07] SMD[13] SMA[07] SMD[05]
SMA[06] SMD[12] SMA[06] SMD[04]
SMA[05] SMD[11] SMA[05] SMD[03]
VCC
SMA[04] SMD[10] SMA[04] SMD[02]
CA[20:00] {1-A8,2-A1,3-A1}
SMA[03] SMD[09] SMA[03] SMD[01]
CA[02]
SMA[02] SMD[08] SMA[02] SMD[00]
CA[01]
CA[00]
UARTCS {1-C3}
SMA[25:01] {2-A8} MTXD {1-D6}
SMD[15:00] {2-D8}
CWE {1-A3,C4,C5;2-A1;3-A1}
CD[15:00] {1-A8,2-C1,3-A1}
VCC VCC
CD[15]
SMA[23] SMA[23] CD[14]
SMA[22] SMA[22] CD[13]
SMA[21] SMA[21] CD[12]
IRQ6 {1-B1,C3}
SMA[20] SMA[20] CD[11]
SMA[19] SMA[19] CD[10]
SMA[18] SMA[18] CD[09]
IRQ4 {1-B1,C3}
SMA[17] SMA[17] CD[08]
SMA[16] SMD[15] SMA[16] SMD[15]
RESET {1-D5}
SMA[15] SMD[14] SMA[15] SMD[14]
SMA[14] SMD[13] SMA[14] SMD[13]
SMA[13] SMD[12] SMA[13] SMD[12]
SMA[12] SMD[11] SMA[12] SMD[11]
SMA[11] SMD[10] SMA[11] SMD[10]
SMA[10] SMD[09] SMA[10] SMD[09]
LCDE {1-D6}
SMA[09] SMD[08] SMA[09] SMD[08]
E {1-A3}
SMA[08] SMD[07] SMA[08] SMD[07]
LCDCS {1-B3,D6}
CHB {1-C4}
SMA[07] SMD[06] SMA[07] SMD[06]
SIZ1 {1-A3} CLB {1-C4}
SMA[06] SMD[05] SMA[06] SMD[05]
SIZ0 {1-A3}
CD[04]
VCC VCC
SMA[05] SMD[04] SMA[05] SMD[04] CA[00]
SMA[04] SMD[03] SMA[04] SMD[03]
SMA[03] SMD[02] SMA[03] SMD[02]
SMA[02] SMD[01] SMA[02] SMD[01]
RESET {1-B4,D5;2-A1;3-D1;5-C1}
CLK5
SMA[01] SMD[00] SMA[01] SMD[00]
CLK20 {2-A8,3-D8}
EXROM0CS
SMWE {2-A6,B8} ROM1PR {1-C1}
SMOE {2-A8}
EXROM1CS
ROM0PR {1-C1}
DECOUPLING

Kurzweil PC2 Series Specifications

General

Polyphony	64 voices
Sound Engine	VAST (Variable Architecture Synthesis Technology)
MIDI	In, Out, Thru
Multitimbral	16 parts
Velocity Sensitivity	Yes
Aftertouch	Yes
Year Released	1999
Display	LCD
Controllers	Pitch wheel, modulation wheel
Inputs	Sustain pedal, expression pedal
Memory	128 setups
Keyboard	76-note, semi-weighted
Outputs	Stereo outputs, headphone output