Roland RD-150 - Panel and Control Overview; Front Panel Layout

A
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D
E
F
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H
I
L
M
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7
11
RD-150
Nov, 2000
BLOCK DIAGRAM
MIDI INMIDI OUT
DAMPER L/M R
OUTPUT
PHONES 1PHONES 2
R
L
IC1
R
L
IC6
SQLC
RESET MUTING
SQUELCH
CONTROL
IC2
IC3,Q4,Q5 Q1,Q2,Q3
JACK BOARD
AC INLET
+15V
-15V
AA
AA
SWITCHING
POWER SUPPLY
POWER
SWITCH
PHOTOBUFFER
Q6
IC4
Q7
Q8
CONTROL BOARD
LED+SW
MATRIX
VOLUME
BRILLIANCE
D/A
IC18
T
IC5,IC7
SRAM 4M-FLASH
IC16
DATA
IC11,IC12
A
D
ROUT
WD
MK BK
WA
A
PS RAM
D
WAVE ROM
L
ED
IC17
IC10
XP
OP
A
KEY SCAN
IC14
EA
XRES
MAIN BOARD
LPF
D
D
IP
A
ADDRESS BUS
XRES
D
R
CPU
A
RX
IC9
DATA BUS
IC6
LOUT
A
TX
A
ED
D
KEYBOARD 88 KEYS
+5V
SOFT/EXPR.
Pedal Type
Control
Q9,Q11
BufferBuffer
IC7
IC7
OUTPUT
BUFFER
PHONES
BUFFER
REF
REF
1
4
2
5
3 1
4
2
5
3
3 1 2 3 1 2
3 2 1 3 2 1
1
2
3 2 1
3 1 2