Roland HP-1 - Page 22

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22
HP-1 MH/RW, HP-2e RW/LA
Mar, 2002
CONTROL PCB ASSY & CIRCUIT DIAGRAM (only for HP-1)
ASSY7772902000
PB6
PORT3
PA3
PORT0
SCANO SCAN1 SCAN2 SCAN3 SCAN4 SCAN5
Input: pull-down resistors are
on the main-board.
PB5
PA4 P60 PB5
SCD4
SCD6
PA5PA1
SCD0
PB6
D+5
PORT5
PA2
PORT2
SCD1
SCD3
PA0
DGND
IN OUT
SS2
PORT1 PORT4 PORT6
SDO SD1 SD2 SD3 SD4 SD5
PB4
PA6
PB7
SS0
PORT7
SS1
SCD2
SCD5
PB4
LEDEN
SCD7
PB7
TO MAIN BOARD
(CN4)
TO MAIN BOARD
(CN3)
from
POWER & AMP. B
(CN1)
SCAN1
SD0
SD3
SD5
SCAN2
SCAN1
SD1
SCAN3
SD4
SCAN5
SCAN0
SCAN2
SCAN4
SCAN3
SD2
SCAN[0..5]
SCAN5
SCAN4
SCAN0
SD[0..5]
SD1
SD4
SD5
SD2
SD0
SD3
SEND R
SEND L
RETURN L
RETURN R
D
+
5
D
D+5V
D
D D DD D
A
D
A
2
+
1
2
-1
A
2
-1
2
+
1
A
A
A
A
CN1
53015_0410
1
2
3
4
1
2
3
4
C8
33uF16H7
C17
33uF16H7
Q5
DTC114E
S
3
1 2
Q6
DTC114E
S
3
1 2
Q8
DTC114E
S
3
1 2
Q7
DTC114E
S
3
1 2
R43
NIU
C12
33uF16H7
C16
33uF16H7
R45
10K
R36
10K R37
4K7
R46
4K7
R47
68k
R40
68k
C7
33pF
C19
NIU
C14
33pF
VR1A
RK
14K12C
23
13
2212
1
14
24
R21
180
C24
100nF
NIU
C25
100nF
NIU
C23
100nF
R22
180
R23
180
LED5
TLHR4401
12
Q10
DTC114E
S
3
1 2
R24
180
SW4
EVQPAE05R
1 2
LED6
TLHR4401
12
+
-
IC3C
UPC4570H
A
1
5 9
+
-
IC3A
UPC4570H
A
3
4
2
+
-
IC3B
UPC4570H
A
7
6
8
Q9
DTC114E
S
3
1 2
R25
180
VR1B
RK14K12C
13289251
10
20
SW2
EVQPAE05R
1 2
SW1
EVQPAE05R
1 2
SW3
EVQPAE05R
1 2
SW5
EVQPAE05R
1 2
CN4
53015_0810
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
R39
NIU
SW6
EVQPAE05R
1 2
CN3
53015_1010
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
C4
100uF16H7
R48
NIU
R49
NIU
LED2
TLHR4401
12
LED1
TLHR4401
12
R20
180
LED3
TLHR4401
12
LED4
TLHR4401
12
View from component side