Circuit Diagram／回路図; Main Diagram - Roland MC-505 Service Notes

MC-505
1 2 3 4 5 6
A CIRCUIT DIAGRAM／回路図

MAIN DIAGRAM

B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
CPU and PERIPHERAL
U
16
7 8 9 10 11 12
A [ 0 . . 2 1 ]
D [ 0 . . 1 5 ]
A [ 0 . . 2 1 ] A [ 0 . . 2 1 ]
D [ 0 . . 1 5 ] D [ 0 . . 1 5 ]
R A S R A S
C A S L C A S L
C A S H C A S H
R D W R R D W R
X C A R D X C A R D
X C C T L X C C T L
X C B S Y X C B S Y
C W P S N S C W P S N S
C S 1 C S 1
P R E C S P R E C S
F I N T F I N T
X E J E C T X E J E CT
X I N S X I N S
X C S N S X C S N S
X R D X R D
X W R L X W R L
M E M O R Y
X R S T
X P C S
X P W A I T
X P I N T
O C T
D B V
X D B P L S
P U L S E P U L S E
A N 0 A N 0
A N 1 A N 1
A N 2 A N 2
A M U X [ 0 . . 2 ]
A M U X [ 0 . . 2 ] A M U X [ 0 . . 2 ]
P B [ 0 . . 7 ]
P B [ 0 . . 7 ] P B [ 0 . . 7 ]
I O E N I O E N
B E A T _ R B E A T _ R
B E A T _ G B E A T _G
E N C A E N C A
E N C B E N C B
T A P I N T T A P I N T
S S E N S S E N
L L C K L L C K
S S [ 0 . . 2 ]
S S [ 0 . . 2 ] S S [ 0 . . 2 ]
L S [ 0 . . 3 ]
L S [ 0 . . 3 ] L S [ 0 . . 3 ]
P D [ 0 . . 7 ]
P D [ 0 . . 7 ] P D [ 0 . . 7 ]
R S R S
R X W R X W
L E L E
L C D [ 0 . . 7 ]
L C D [ 0 . . 7 ] L C D [ 0 . . 7 ]
L C D P W M L C D P W M
13 14 15 16 17 18
A [ 0 . . 2 1 ]
D [ 0 . . 1 5 ]
D 1 R
D 2 R
X P I N T
X R D X P W A I T
X W R L X P C S
T O N E
G E N E R A T O R
X D B P L S D B V
P U L S E
D B E A M C T R L
PANEL I/O
19 20 21 22 23 24
M L M L
M R M R
D 1 L D 1 L
D 1 R
D 2 L D 2 L
D 2 R
O C T
OUTPUT (MIX), MUTE CONTR OL
OUTPUT (DIRECT 1, 2)
A
D
A
Feb, 1998
25 26 27 28
F
F
D