Roland VS-840 - Page 16

16
/ APA / IRQ
20 44
PG / CS
40
29
/ APA / IRQ
21 55
30
/ APA / IRQ
22 66
31
/ APA / IRQ
23 77
32
/ CSP6 / IRQ
7
6
37
33
/ CSP6 / IRQ
26
P6 / IRQ
15
P6 / IRQ
04
34
V
SS
V
SS
V
CC
2
PG / CS
31
1
PC / A
00
6
PC / A
11
7
PC / A
22
8
PC / A
33
9
PC / A
44
11
PC / A
55
12
PC / A
66
13
PC / A
77
14
PB / A
08
15
PB / A
19
16
PB / A
210
17
PB / A
311
18
PB / A
412
20
PB / A
513
21
PB / A
614
22
PB / A
715
23
PA / A
016
24
PA / A
117
25
PA / A
218
26
PA / A
319
27
3
4
V
SS
10
V
SS
PG / CS
13
PG / CAS
0
/ OE
MD
2
MD
1
MD
0
PG / CS
22
P1 / PO / TIOCA0/ DACK
08 0
P4 / AN
77
/ DA
1
P4 / AN
66
/ DA
0
P4 / AN
55
P4 / AN
44
P4 / AN
33
P4 / AN
22
P4 / AN
11
P4 / AN
00
V
ref
AV
CC
V
SS
AV
SS
19
V
SS
28
V
SS
35
V
SS
36
37
38
5
PE / D
00
PE / D
11
PE / D
22
PE / D
33
PE / D
44
PE / D
55
PE / D
66
PE / D
77
PD / D
08
PD / D
19
PD / D
210
PD / D
311
PD / D
412
PD / D
513
PD / D
614
PD / D
715
V
CC
V
SS
40 39 44 45 46 47 49 50 51 52 53 54 55 56 58
P3 / TxD
00
P3 / TxD
11
P3 /
RxD
20
P3 /
RxD
31
P3
/
SCK
4
0
P3
/
SCK
51
59 60 61 62 63 64 41 42
V
SS
48
V
CC
57 43
/ POP2 / TIOCA3
00
/ POP2 / TIOCB3
11
/ POP2 / TIOCC3/ TMRI
202
/ POP2 / TIOCD3/ TMCI
303
/ POP2 / TIOCA4/ TMRI
414
/ POP2 / TIOCB4/ TMCI
515
/ POP2 / TIOCA5/ TMO
606
/ POP2 / TIOCB5/ TMO
717
P6 / TEND
13
P6 / DREQ
12
P6 / TEND
01
/ CS
5
P6 / DREQ
00
/ CS
4
V
SS
V
SS
P5 / ADTRG
3
PF / BREQ
0
PF / BACK
1
PF / LWR
3
PF / HWR
4
PF / RD
5
PF / AS
6
PF /ø
7
PF / LCAS
2
/ WAIT / BREQO
P5 / SCK
22
P5 / RxD
12
P5 / TxD
02
V
CC
V
CC
V
EXTAL
XTAL
STBY
NMI
SS
V
SS
V
SS
V
SS
101
102
100
74
73
72
71
70
69
97
96
95
94
92
91
90
89
88
87
86
85
83
82
81
80
79
78
77
76
99
93
84
75
68
67
66
65
98
127 128 123 122 121 120 118 117 116 115 114 113 112 111 109 108 107 106 105 104 103 126 125 119 110 124
P1 / PO / TIOCB0/ DACK
19 1
P1 / PO / TIOCC0/ TCLKA
210
P1 / PO / TIOCD0/ TCLKB
311
P1 / PO / TIOCA1
412
P1 / PO / TIOCB1/ TCLKC
513
P1 / PO / TIOCB2/ TCLKD
715
P1 / PO / TIOCA2
614
WDTOVF
RES
CPU
HD6432655F (01341789)
IC1 on MB
16M DRAM
HM5118160J-6 (01231434)
IC31 on MB
V
CC
V
CC
V
CC
1
I/O 0 2
I/O 1 3
I/O 2 4
I/O 3 5
6
I/O 4 7
I/O 5 8
I/O 6 9
I/O 7 10
Top
View
NC 11
NC 12
WE 13
RAS 14
NC 15
NC 16
A0 17
A1 18
A2 19
A3
V
SS
V
SS
V
SS
I/O 15
I/O 14
I/O 13
I/O 12
I/O 11
I/O 10
I/O 9
I/O 8
NC
LCAS
UCAS
OE
A9
A8
A7
A6
A5
A420
21
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
4M DRAM
HM 514800 DJ6Z (01120523)
IC19 on MB
V
CC
V
CC
1
I/O 0 2
I/O 1 3
I/O 2 4
I/O 3 5
NC 6
WE 7
RAS 8
A9 9
A0 10
A1 11
A2 12
A3 13
14
V
SS
V
SS
28
I/O 727
I/O 626
I/O 525
I/O 424
CAS23
OE22
NC21
A820
A719
A618
A517
A416
15
Top
View
LOG | C V 1
DO
TEST 2
VCO OUT 3
PFD OUT 6
F—A4
IN
F—B5
IN
LOG | C GND 7
VCO V14
DO
VCO GND
VCO INHIB | T
PFD INHIB | T
BIAS
R
COIN
V
13
12
9
11
10
NC8
PLL
TLC2933IPW(01124367)
IC5 on MB
Top
View
AD/DA
AK4520AVF-E2(01238101)
IC38. IC39 on MB
Top
View
VREFH 1 VCOM28
AOUTR27
AOUTL26
CMODE25
PWAD24
PWDA23
DGND22
VD21
TST120
TST219
TST317
DEM117
DEM016
MCLK15
VREFL 2
AINR 3
VRADR 4
AINL 5
VRADL 6
VA 7
AGND 8
DIF0 9
DIF1 10
LRCK 12
SCLK 12
SDTI 13
SDTO 14
IC DATA
Mar, 1998
VS-840/840S