1
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
A
B
C
D
E
F
G
H
I
J
K
L
A
B
C
D
E
F
G
H
I
J
K
L
PSR-A1000 BLOCK DIAGRAM
PSR-A1000
PSR-A1000
PSR-A1000
/LP-IRQ
LCDC
5A[1]
5D[0..7]
FDC
5A[0..1]
5D[0..7]
8.00MHz
VA[0..14]
VD[0..7]
FDD
+5D
D[0..31]
A[0..22]
D[0..31]
A[2..13,22]
D[0..31]
A[2..22]
D[0..15]
A[1..22]
5D[0..15]
5A[1..18]
Style/Para
Data storage
SWX00B
CMD[0..15]
CMA[1..8]
5D[0..15]
5A[1..12]
WAVE
SMD[0..15]
SMA[0..21]
5A[0..18]
5D[0..15]
CPU
DAC
DATA,BCLK,WCLK,DACSYS
/IRQ_LP
/DREQ
/IRQF
/5DREQ
/5IRQF
SI[0..15]
Panel SW Matrix
BLK[0..2]
BLK[3]
SEG[0..11]
Panel LED Matrix
5MKACK,/5MKIC
MKDATA,MKCLK
5V 3.3V Buffer
MKACK,/MKIC
/DATACS
/LSIIC
/RD,/WE,/WE1
/TGIC
/5DATACS
/5LSIIC
/5RD,/5WE,/5WE1
/5TGIC
/5DATACS
/5RD,/5WE
/STYLECS
/RD
/PROGCS
/RD
/SDRAMCS
RD/WR
VOL
EQ
+12V
LPF
HPF
ATT
ATT
ATT
+12A
+12A
+B
+B
Tweeter
L & R
Woofer
L & R
PHONES
+12A
+5A
STAND-BY
+B
+12A
DC-DC
+5A
+5D
+3.3D
AN1
AN0
MIDI IN
MIDI OUT
TO HOST
MIDIOUT
MIDIIN
1M CLK
Tr Array
BRI_F
/RAS,/CAS
CKIO,CKE
/VWR
/VCE
SRAS
SCAS
/CWE
/SCS0
DQMUU,DQMUL,DQMLU,DQMLL
/SDRAMCS,/PROGCS,/STYLECS
RD/WR
/8BITCS
PITCH BEND
/LCDCS
/FDCS
/5RD
/5WE1
/5RD
/5WE1
/DACK
/5DREQ
/5IRQF
/LP-IRQ
/5RD,/5WE1
/5TGIC
/TGCS
Back Light
+
-
+5D
/5LSIIC
/16BITCS
Dec
Dec
A[0..19]
D[0..15]
/TGCS
A[23]
A[22,23]
/LCDCS
/FDCS
/DACK
/MUTE
AN6
/PEDALIN
PC/MAC
AN4
DA0
/IC
RE0,RE1
DATA ENTRY
/MUTE
+12A
MUTE
OUTPUT
AUX OUT
1
1
CONTRAST
LSEG[0..11]
LD[0..8]
SSEG[0..15]
FOOT PEDAL1
(SUSTAIN PEDAL)
FOOT PEDAL2
(FOOT VOLUME)
HOST SELECT
MIDI/PC2
PC1/MAC
MIDI
I/F
LCD
CONTRAST
Line
Transceiver
DC-IN
16V
Line
Filter
12V
REG.
5V
REG.
CLOCK
5.00MHz
DC-AC
INV.
LCD
module
320x240
SRAM
256K
CLOCK
16.00MHz
FLASH
4M
MASK
64M
MUTE
Circuit
fc = 6kHz
-12dB/Oct
fc = 6kHz
-12dB/Oct
Buffer x2
0dB
3.3V
REG.
DRAM
4M
/SOE
MASK
128M
CLOCK
33.8688MHz
AddrBus
Buffer
(3.3V 5V)
DataBus
Buffer
(3.3V 5V)
SDRAM
64M
Ripple
Filter
Circuit
5V 3.3V
Buffer
3 to 8
Dec.
Tr.
Driver
CPU
SH3
RESET
4.2V/50msec
CLOCK
10.00MHz
5V 3.3V
Buffer
3.3V 5V
Buffer
Program
MASK
32Mx2
CN16
CN13
CN4
CN1
CN2
CN104
CN500
CN300
CN109
CN110
CN100
CN908
CN102
CN102
JK105
IC107,108
IC104,105
IC102
IC700
IC800
IC801
IC304,
305,
306
IC308
IC308
IC302,
303
IC803
IC300
IC111
JK104
JK102
JK103
IC112
IC500
IC501
IC204
IC207
IC200
IC913
CN600
CN100
IC103,104
IC600
IC100
IC001
IC301
IC601
CN300
SW300
JK301
JK300
JK302
VR300
JK100
IC307
CN109
CN105
CN104
CN303
CN501
CN102
CN1
28CA1-8825437
PN1
,
,
PN3
,
ENC
PB1
MKS5F
AM
SW
DM
VR
IC205
Keyboard
MK-H
,
MK-L
CN105
CN104
IC101
3
1
CN103
CN106
CN105
CN908
IC112
IC114
IC111
TR702
1
2
1
3
3
1
CN103
CN908
12,13,
16,17
24
18,28
2,25-27
16 30 15
101
44
158,164,
163,160
43
1
152,151
150
27
24
16-29,32
1-13
2
X800
CN103
CN100
VR100
4,6
2,8
13
HP
CN111
CN108
IC114
6,7
2
3
1
2/2
TR100,101,400,401
4,6
4,6
2,8
8,10
2,7
15
17
14
12
5
2,8
11,18
IC110
1
3
2
4 IC113
2
8
2
8
TR104,106
4,6
4,6
TR103,105
6
4
5
7
20
39,40
21
19
13
14
37
CN103
X300
8
7
20
27
26
28,11
12
14
12
14
20
17
19,18
3
2
1
68,67
59,28,
71,16
IC206
207
106,108
162,105
89-92
93
96,98,99
116
114
101
102
113
88-90
107
100
164,110
171,165
8
8
12
15
16
18,17
IC101
3,6
11, 13,14
5
17
18
13
7
2
3
2,3
4
6,7,9
5
4
191
10
X101
193
155,156
203
169
172
166
199
FOOTVOL
200
206
SUSTAIN
103,104
P-BEND
JK304
JK303
VR3
CN10 (PN3)
CN1
(PN1)
CN2 (PN1)
CN600
CN2
(PN1)
13,14
3
CL1
15,16
IC1
CN2-4
15
3
1
2,3
12
5
6
IC911
AM
PN2
PN4
INV
1/2
41
74
