Scanner Board (Keyboard Models)-Scanner Kybd I/F, Play I/F (1 Of 2) - Kurzweil K2600 Series Service Manual

1 2
R5 1 2 1M
BATSENSE {2-D7}
CPDL1SNS {2-A8}
CPDL2SNS {2-A8}
BRTHSNS {2-A8}
J701
10 R6 1 2 1K
KBDPRESS
9 R7 1 2 1K
PITCH
8 R8 1 2 1K
A
MOD
7 R9 1 2 1K
MUXOUT
6 AUXO[2]
MUXA2
5 AUXO[1]
MUXA1
4 AUXO[0]
MUXA0
3
+5Vref {2-A1,A3,A4,C3,C4}
+5REF
2
-12V ~12V
1
AGND
PLAYER CONTROL
J702
7
+5Vref {2-A1,A3,A4,C3,C4}
+5REF
6 R10 1 2 1K
OUT
4 AUXO[2] RB[7]
MUXA2
3 AUXO[1] RB[6]
MUXA1
2 AUXO[0] RB[5]
MUXA0
RB[4]
5 RB[3]
ANGD2
1 RB[2]
AGND1
RB[1]
RB[0]
SLIDER
B
CPDL2 {2-A8}
CPDL1 {2-A8}
+5Vref {2-A1,A3,A4,C3,C4}
R2
10 ohm
+5Vref {2}
R3
C2
C4
.1uF 1K
.1uF
CLK12
C R1 R4
1M 0 ohm
1 2 1 2
1 2
Y1
C1 C3
12.0000MHz
33pF,NPO 33pF,NPO
VCC
R11
R12
R13
RESET {2-D3,D7}
EXTIAK {2-D7}
R14
PDL1 {2-C8}
R15
PDL2 {2-B8}
R16
PDL3 {2-B8}
R17
PDL4 {2-A8}
D
1 2
Scanner Board (keyboard models)–Scanner Kybd I/F, Play I/F (1 of 2)
3
C5
.1uF
SA[15]
VCC
66 SA[14]
DAC2
67 SA[13]
DAC1
SA[12]
U1
74 SA[11]
37451 P[37]
75 R19 SA[10]
24 P[36]
RESETOUT 76 SA[09]
10K
TxD/ P[35]
58 77 SA[08]
AIN[7] RxD/ P[34]
59 78 SA[07]
AIN[6] PWM/ P[33]
60 79 SA[06]
AIN[5] EV3/ P[32]
61 2 SA[05]
AIN[4] EV2/ P[31]
62 3 SA[04]
AIN[3] EV1/ P[30]
63 SA[03]
AIN[2]
64 42 SA[15] SA[02]
AIN[1] A15/ P[17]
65 43 SA[14] SA[01]
AIN[0] A14/ P[16]
44 SA[13] SA[00]
A13/ P[15]
4 45 SA[12]
P[57] /SLD7 A12/ P[14]
5 46 SA[11]
P[56] /SLD6 A11/ P[13]
6 47 SA[10]
P[55] /SLD5 A10/ P[12]
7 48 SA[09]
P[54] /SLD4 A09/ P[11]
8 49 SA[08]
P[53] /SLD3 A08/ P[10]
9
P[52] /SLD2
10 50 SA[07]
P[51] /SLD1 A07/ P[07]
11 51 SA[06]
P[50] /SLD0 A06/ P[06]
52 SA[05]
A05/ P[05]
23 53 SA[04]
SYNC A04/ P[04]
54 SA[03]
A03/ P[03]
22 55 SA[02]
R/W A02/ P[02]
SWR 20 56 SA[01]
WR A01/ P[01] SD[2]
SRD 21 57 SA[00]
RD A00/ P[00]
SA[15]
31 33 SD[7]
CLKOUT D7/ P[27] SA[14]
29 34 SD[6]
XOUT D6/ P[26] SA[13]
28 35 SD[5]
XIN D5/ P[25] SA[12]
36 SD[4]
D4/ P[24] SA[11]
RESET 26 37 SD[3]
RESET D3/ P[23] SA[10]
38 SD[2]
D2/ P[22]
69 39 SD[1]
VREFADC D1/ P[21] SRD
68 40 SD[0]
VREFDAC D0/ P[20] SWR
71
AVCC
70 12 RA[7]
AVSS WE/ WR/ P[67]
13 RA[6]
VCC
RD/ E/ P[66]
72 14 RA[5]
VCC CS/ P[65]
73 15 RA[4]
VSS2 A0/ P[64]
32 16 RA[3]
VSS1 RDY/ P[63]
17 RA[2]
INT3/ P[62]
2 1 25 18 RA[1]
MODE INT2/ P[61]
19 RA[0]
R18 INT1/ P[60]
10K
1-2 = 76 KEYS
3-4 = DIAGS
5-6 = OPTION
J703
1 2
3 4
AUXIN1
5 6
SELECT
G1 G2
1 2 10K 9 11 SD[7]
A[8] B[8]
1 2 10K 8 12 SD[6]
A[7] B[7] SA[00]
1 2 10K 7 13 SD[5]
A[6] B[6]
6 14 SD[4]
A[5] B[5]
1 2 10K 5 15 SD[3]
A[4] B[4]
1 2 10K 4 16 SD[2]
A[3] B[3]
1 2 10K 3 17 SD[1]
A[2] B[2]
1 2 10K 2 18 SD[0]
A[1] B[1]
74HC541
U2
3
4 5
AUXO[7:0]
VCC
DNS
R25 R42
R20 R23
1 2 1 2
DNS 0 ohm
SA[13] 1 2 1 2
0 ohm
1
A15/VPP[32k] U4
27
A14 SA[14] 1 U7
26 A14
A13 26
2 19 SD[7] A13
A12 D07 SA[12] 2
23 18 SD[6] A12 19
A11 D06 SA[11] 23 D07
21 17 SD[5] A11 18
A10 D05 SA[10] 21 D06
24 16 SD[4] A10 17
A09 D04 SA[09] 24 D05
25 15 SD[3] A09 16
A08 D03 SA[08] 25 D04
3 13 SD[2] A08 15
A07 D02 SA[07] 3 D03
4 12 SD[1] A07 13
A06 D01 SA[06] 4 D02
5 11 SD[0] A06 12
A05 D00 SA[05] 5 D01
6 A05 11
A04 SA[04] 6 D00
7 A04
A03 SA[03] 7
8 A03
A02 SA[02] 8
9 A02 20
A01 SA[01] 9 CE
10 A01 22
A00 SA[00] 10 OE
A00 27
20 WE
CE
22
OE/VPP
SA[15:00]
SD[7:0]
1 19
SD2 ROMCS
12
RAMCS
2
A15
3 16
A14 AUXOUT
4 14
A13 AUXIN1
5 15
A12 AUXIN2
6 18
A11 EXTIRQ
7 17
A10 KCOLSTB
R24
8 13
100
READ RESET
9 11 1 2
WRITE OE
VCC
U3 16V8-15
C6
.1uF
VCC
R21 13
QH
U5 12
10K
QG
11
QF
2 10
B QE
1 6
A QD
5
QC
8 4
CLK QB
9 3
CLR QA
J704
74HC164
R26 1 2 100 35
VCC
BR3T
15
BR3B
R27 1 2 100 33
MK3T
13
R22 MK3B
13 R28 1 2 100 31
QH BR2T
10K
U6 12 11
QG BR2B
11 R29 1 2 100 29
QF MK2T
2 10 9
B QE MK2B
1 6 R30 1 2 100 27
A QD BR1T
5 7
QC BR1B
8 4 R31 1 2 100 25
CLK QB MK1T
9 3 5
CLR QA MK1B
R32 1 2 100 23
BR0T
74HC164 3
BR0B
R33 1 2 100 21
MK0T
1
MK0B
RA[7] R34 1 2 100 36
TT[7]
RA[6] R35 1 2 100 34
TT[6]
RA[5] R36 1 2 100 32
TT[5]
RA[4] R37 1 2 100 30
TT[4]
RA[3] R38 1 2 100 28
TT[3]
RA[2] R39 1 2 100 26
TT[2]
RA[1] R40 1 2 100 24
TT[1]
RA[0] R41 1 2 100 22
TT[0]
TP10 88 Keyboard
4 5
6 7
AUXO[7:0]
SMIDI_TxD {2-C1}
SMIDI_RxD {2-D7}
VCC
VCC
R55 R56
10K 10K
SD[7] SD[7] 18 19 AUXO[7]
D[8] Q[8]
SD[6] SD[6] 17 16 AUXO[6]
D[7] Q[7]
SD[5] SD[5] 14 15 AUXO[5] J705
D[6] Q[6]
SD[4] SD[4] 13 12 AUXO[4] VCC
D[5] Q[5]
SD[3] SD[3] 8 9 AUXO[3] 20
D[4] Q[4] +5V
SD[2] SD[2] 7 6 AUXO[2] 19
D[3] Q[3] DGND3
SD[1] SD[1] 4 5 AUXO[1] 16
D[2] Q[2] DGND2
SD[0] SD[0] 3 2 AUXO[0] 15
D[1] Q[1] DGND1
AUXOUT 11
CLK 18
RESET 1 PHASEB
CLR 17
PHASEA
74HC273
AUXO[6] 14
U8 SENSE
AUXO[7] 13
DRIVE
12
COLD
AUXO[5] 11
COLC
AUXO[4] 10
COLB
AUXO[3] 9
COLA
BT[7] 8
ROW7
BT[6] 7
ROW6
BT[5] 6
ROW5
BT[4] 5
ROW4
BT[3] 4
ROW3
BT[2] 3
ROW2
BT[1] 2
ROW1
BT[0] 1
ROW0
EXTIRQ {2-C1}
VCC VCC
C7 C8
.1uF .1uF
RB[7] 10K 2
RB[6] 10K 2
RB[5] 10K 2
RB[4] 10K 2
RB[3] 10K 2
38 R43 1 2 100 RB[2] 10K 2
BR5T
40 R44 1 2 100 RB[1] 10K 2
MK5T
39 RB[0] 10K 2
BR4T
19 R45 1 2 100
BR4B
37
MK4T
17 R46 1 2 100 RA[7] 10K 2
MK4B
RA[6] 10K 2
RA[5] 10K 2
RA[4] 10K 2
RA[3] 10K 2
18 RA[2] 10K 2
NC1
20 RA[1] 10K 2
NC2
RA[0] 10K 2
16 BT[7] BT[7] R47 1 2 100 RB[7]
BT[7]
14 BT[6] BT[6] R48 1 2 100 RB[6]
BT[6]
12 BT[5] BT[5] R49 1 2 100 RB[5]
BT[5]
10 BT[4] BT[4] R50 1 2 100 RB[4]
BT[4]
8 BT[3] BT[3] R51 1 2 100 RB[3]
BT[3]
6 BT[2] BT[2] R52 1 2 100 RB[2]
BT[2]
4 BT[1] BT[1] R53 1 2 100 RB[1]
BT[1]
2 BT[0] BT[0] R54 1 2 100 RB[0]
BT[0]
RA[7:0]
RB[7:0]
6 7
Kurzweil K2600 Series Service Manual
8
A
B
VCC C
1 R57
1 R58
1 R59
1 R60
1 R61
1 R62
1 R63
1 R64
VCC
1 R65
1 R66
1 R67
1 R68
1 R69
1 R70
1 R71
1 R72
All resistors are 5% unless specified otherwise.
All capacitors are Z5U unless specified otherwise.
D
YOUNG CHANG CO., LTD.
Reproduction without the express written consent
of Young Chang Co., Ltd. is prohibited.
K2600 KEYBOARD SCANNER
Scanner,Kbd I/F,Player I/F
Filename: 021208A3 Date: 2000/11/02
Eng: By: Mike Richmond
Mfg: Sht 1 of 2
Doc: 021208A3 Rev: RAV3
8
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