Block Diagram - Roland SK-500 Service Notes

SK-500
1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6
A A A A
BLOCK DIAGRAM/ ブロック図 / ブロック図
/ ブロック図 / ブロック図
B B B B
PC Serial
Mac I/F
C C C C
D D D D
MIDI-OUT
E E E E
PC
F F F F MIDI
iMac
G G G G
15
I/F Select Switch
14 16
13 11
(USB/PC/Mac/MIDI)
12
SW4A
H H H H
+ 5
D
JK13
2
4
Pedal 3
I I I I
1
D + 5 D + 5
J J J J
WHEELS 12 12
UNIT
A A
K K K K
Pitch Data
Entry
L L L L
M M M M
N N N N
O O O O
P P P P
Q Q Q Q
R R R R
S S S S
Input
T T T T
U U U U
4
7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12
JK2
IC17
1MHz
20 M34051 (forMac)
30
RS422
Driver
IC12
JK5
4 2 1
2 256k-SRAM
5
D
(Sub-System)
USB
IC2
JK1
USB
20
M37640E
24MHz
X3
8bit
X4
CPU
SH7016
(64kB-MASK)
IC1
A
CN3
CN7 CN8
12 22
7SEG-LED
A A
1 2
SW Volume
1 2 1 2
SW SW
PANEL BOARD
CN9
LPF
DAout
IC31
2
AMP
3
1
IC32
A
JK11
13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18 19 19 19 19
IC9 IC5 IC16 CN4
4M-DRAM 16M-Flash KeyScan
(WORK) (Program) SSC1080
16bit 16bit 8bit
X2
1 4
8bit 16bit
24.576MHz
IC4 IC3
2 1
MB87837 RA09-002
(EFX) 176P-QFP
8bit 8bit
Mask-ROM Mask-ROM
4M-DRAM 4M-DRAM
128Mbit 64Mbit
(DelayLine) (DelayLine)
(WAVE) (WAVE)
IC11 IC10 IC7 IC8
2
AMP 3
Phones1
1
A
IC34 JK8
2
AMP 3
Phones2
1
IC35
A
JK9
2
AMP 3
Output
1
A
IC33 JK10
20 20 20 20 21 21 21 21 22 22 22 22 23 23 23 23 24 24 24 24 25 25 25 25
Keyboard
IC14
D/A
DAout
PCM1716
IC20
SW1A + 5
D
JK7 5V/1A
2 1 2 DC/DC
C57
DC-IN 9V 1
222B
3 BP5220
C54
102B
D
D D
IC21
+ 5
D
DC/DC
NJM2360AM
A 5
-
D
NOV. 2000
26 26 26 26 27 27 27 27 28 28 28 28
A