Block & Wiring Diagram; Input Jack; Dsp Board - Roland DB-700UT Service Notes

May. 2000
1 2 3 4 5 6
A BLOCK & WIRING DIAGRAM
B
C
D
E
J K 4
JACK
B O A R D
F
CN1
G
W 1 6
H
CN2
I
J
K
L
M
N
O
W 1 5
I N P U T
J K 1
H I G H
P
I N P U T
J K 2
L O W
Q

INPUT JACK

B O A R D
R

DSP BOARD

S
T
U
7 8 9 10 11 12
M E M O RY S W I T C H
J K 5 GND LIFT J K 3 J K 6 J K 7 J K 8 J K 9
B O A R D
S W 1
L E D & S W
A
CN2 CN5
W 2 0 W 2 1
CN9 CN4
IC1B
HOT
COLD
IC1A
IC10
C P U
IC13
S R A M
IC5A
HOT
IC2A IC3A
IC4
Q 1 IC2B A/D/A IC3B IC5B
13 14 15 16 17
W 1 9
IC8
E E P R O M
P O W E R S U P P LY W 1 8
CIRCUIT
A + 5 V
IC9
D S P IC11
D R A M
IC12
F L A S H M E M O RY
W 1 7
COLD
A
A G N D
18 19 20 21 22 23
V R & S W
P O W E R S U P P LY
CIRCUIT
A+15V, A-15V
D + 5 V D G N D
A+15V, A-15V, +VCC, -VCC
D + 5 V, D G N D
LIMITTER LEVEL P H O N E S
D E T E C T I O N D E T E C T I O N
CIRCUIT
IC2B J K 1 0
P H O N E S
V R 1 0
M A S T E R V O L
P O W E R W 1 4
A M P.
IC2A
A
A G N D
P O W E R B O A R D
DB-700
24 25 26 27 28
PS1
B O A R D
T R A N S F O R M E R
H P F
T W E E T E R
T W B O A R D
W O O F E R
5