Circuit Diagram (Control Pcb Assy) - Roland Va-3 Service Notes

Jan, 2001
1 2 3 4 5 6
A CIRCUIT DIAGRAM (
CONTROL
B
C
D
SCD[0..7]
TO MAIN BOARD
(CN4)
E
SCD7
SCD6
CN1
SCD5
AMPC1-2714P
SCD4
SCD7 SCD6 SCD3
1 14
SCD5 SCD4 SCD2
2 13
SCD3 SCD2 SCD1
3 12
SCD1 4 11 SCD0 SCD0
F LLP 5 10 LLP
6 9
7 8
R1
100K
D
5VD VLED
R10
G
27I
C2
0.6W
33uF16
C3
D
470uF16
H
I
IC3
74HC138
SS0 LSSC0
1 15
A Y0
SS1 LSSC1
2 14
B Y1
SS2
3 13
C Y2
5VD 12
Y3
11
J Y4
LSSC5
6 10
G1 Y5
SS3 LSSC6
4 9
G2A Y6
SSEN LSSC7
5 7
G2B Y7
5VD
K
C4 D
100nF
LS[0..3]
5VREF
LS3 1 20
LS1 2 19
L SS3 3 18
SS1
4 17
SSEN LS2
5 16
EXENCB 6 15 LS0
7 14 SS2
8 13 SS0
LSSC7
9 12
EXENCA
10 11
5VD
CN3 REF
M
AMPC1-2720P
TO CPU BOARD
(CN1)
C5
33uF16
D
N
O
P
Q
R
IC5
74HC138
LS0 1 15 LLSC8
A Y0
LS1 LLSC9
2 14
B Y1
LS2 LLSC10
3 13
C Y2
LLSC11
12
Y3
11
Y4
LS3 6 10
G1 Y5
4 9
S G2A Y6
5 7
G2B Y7
D
5VD
T
C9
D
100nF
U
7 8 9 10 11 12
PCB ASSY)
LSSC0
D1 D2 D3
SW1 SW2 SW3
BANK2
BANK1 BANK3
LSSC1
D9 D10 D11
SW9 SW10 SW11
SUPER TONES 1 SUPER TONES 2 STYLE
USER PROGRAM
LSSC5
D31 D32 D33
SW16 SW17 SW18
GROUP
MELODY INTELL SUPER TONES 3 SUPER TONES 4
A/B
LSSC6
D46 D47 D48
SW24 SW25 SW26
OTHER ARRANG PIANO USER PRG DW
LSSC7
D62 D63 D64
SW32 SW33 SW34
INTRO ORIGINAL FILL
MOD
BENDER
5VD
R11
IC4A
10K
74HC14
R12
ENCA0
2 1
100
C6
10nF 5VD
5% P.5
D ENC1
IC4B
A
74HC14
R14 R13
ENCB0 10K
4 3
B
100
C7
10nF COMM
5% P.5
D
EVQ-VEMF01-24B
IC4C D
5VD
74HC14
6 5
IC4G
IC4E 74HC14
74HC14
D
10 11
C8
100nF
IC4F
74HC14
12 13
D
IC4D
74HC14
8 9
D
13 14 15 16 17 18
D4 D5 D6 D7 D8
SW4 SW5 SW6 SW7 SW8
BANK6
BANK4 BANK5 BANK7 BANK8
D12 D13 D14 D15 DBEAM ON/OFF
BOARD
SW12 SW13 SW14 SW15
TONE DATA TEMPO DBEAM
ON/OFF
D34 D35 D36 D37 D38
SW19 SW20 SW21 SW22 SW23
EFFECTS ONE TOUCH SYNC FUNCT MENU
D49 D50 D51 D52 D53
SW27 SW28 SW29 SW30 SW31
USER PRGM UP ORCHESTRATOR VIRTUAL BAND SONG/COMP
D65 D66 D67 D68
SW35 SW36 SW37 SW38 SUSTAIN
FOOTSWITCH
VARIATION ENDING START/STOP SUPER TONES 5
5VREF
R18
10K
MODULATION FL2
1 3
CN4
1 2
FL3 REF
53015-0610 1 3
GRN 1 REFGND FL4
MOD
BLEU 2 MOD 1 3
BRWN 3
ORG 4 BEND FL5
RED 5 REFGND 1 3
1 YEL 6 REF5V 5VREF
BEND
FL6
1 3
R25
4 2
TO BENDER
100
3
REF
C10
BENDER
100nF
REF D
19 20 21 22 23 24
Max Nr 88 Leds
Max Nr 120 Switches
C1 5VD
Used Nr .. Leds
100nF
IC1
Used Nr .. Switches
IC2
D
SCD0 LD0
2 19 1 18
D1 Q1 I0 O0
SCD1 3 18 2 17 LD1
D2 Q2 I1 O1
SCD2 4 17 3 16 LD2
D3 Q3 I2 O2
R2
SCD3 5 16 4 15 LD3 R3
D4 Q4 I3 O3
SCD4 LD4 100I 100I
6 15 5 14
D5 Q5 I4 O4
SCD5 LD5 LD[0..7] 0.6W 0.6W
7 14 6 13
D6 Q6 I5 O5
SCD6 LD6
8 13 7 12
D7 Q7 I6 O6
SCD7 9 12 8 11 LD7
D8 Q8 I7 O7
LLP
11
CLK
TD62593AP
1
OC
74HC574
D
D
CN2
LED_A
1
LED_K 2
LSSC1 3 VLED
SCD7 4
1
LLSC8 Q1
3
53015-0410 NIU
2 RN2227
TO DBEAM BOARD
(CN1)
VLED D16 D17
2 1 2
1
red
Q2
LLSC9 3
RN2227 GROUP A GROUP B
2
VLED D24 D25
2 1 2
1 red
LLSC10 3 Q3
RN2227
2 INTRO ORIGINAL
D39 D40
VLED 2 1 2
red
1
LLSC11 Q4 SUPER TONES 1 SUPER TONES
3
RN2227
2
D54 D55
2 1 2
red green
BEAT BEAT
1 2
5VREF
R23
NIU
R26
NIU
REF
LLSC[8..11]
VA-3
25 26 27 28 29 30
ALL TACTS SW IN THIS SHEET ARE EVQ-PAE05R
ALL RED LEDS IN THIS SHEET ARE TLHR_4401
OR L53SRD-D
ALL GREEN LEDS IN THIS SHEET ARE TLHG_4401
ALL DIODES IN THIS SHEET ARE 1N4148
R4 R5 R6 R7 R8 R9
100I 100I 100I 100I 100I 100I
0.6W 0.6W 0.6W 0.6W 0.6W 0.6W
D18 D19 D20 D21 D22 D23
1 2 1 2 1 2 1 2 1 2 1 2 1
red red red red red red red
EFFECTS STYLE USER PGM TONE DATA TEMPO/TAP
D26 D27 D28 D29 D30
1 2 1 2 1 2 1 2 1 2 1
red red red red red red
FILL VARIATION ENDING START/STOP SYNC
D41 D42 D43 D44 D45
1 2 1 2 1 2 1 2 1 2 1
red red red red red red
2 SUPER TONES 3 SUPER TONES 4 SUPER TONES 5 ONE TOUCH MELODY INT
D56 D57 D58 D59 D60 D61
1 2 1 2 1 2 1 2 1 2 1 2 1
green green red red red red
BEAT BEAT DISK OTHER ARRANG PIANO
3 4
27