Ashly, Schematic diagram: vcm-88 – Ashly VCM-88 User Manual
Page 15
15
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Controllers
+
C11
J_3
R35
C_7
R_8
R_7
+
C_5
C_6
-
+
U_1B
R_4
-
+
U6C
R65
+
C_1
VR2
R70
D20
D23
D22
R12
-
+
U4A
R45
D12
R37
X7
X6
X5
X4
X3
X2
X1
X0
G
C
B
A
4
2
5
1
12
15
14
13
VEE
3
16
8
9
10
11
6
/EN
VCC
7
HC4051
U3
-
+
U_3B
R5
-
+
U_1A
R6
R4
Q7
R_9
C_8
R23
R7
C7
R_11
R_19
R_17
18
6
2
5
4
37
U_2
J_1
R_20
R_12
R_3
R_23
Q_2
-
+
U_4B
R_28
R_29
D_2
D_1
-
+
U_4A
R_33
VR_3
R_27
R_30
-
+
U_3A
+
C_11
+
C_10
R_26
R_25
R_24
R33
R_35
Q_3
D_4
D6
D4
D5
D3
C14
+
C25
R56
D7
C23
Q1
L1-8
R61
R62
R63
D1
D2
R1
L1-7
-
+
U6D
R73
R72
Q5
R18
R48
R_16
R_18
R_13
R_15
R31
J7
Q2
R_21
SW1
+
C8
D30
R_5
R_6
D_5
Q_1
J8-8
R60
J6
Q3
VR_1
D19
R29
C22
D18
D26
R71
TP4
TP2
R30
R24
R25
R_31
C12
+
C13
R21
C9
C10
R47
X1
R66
R46
R_22
R69
R8
D28
C20
D29
R59
R58
R57
SW3L
SW3R
R55
R44
-
+
U6B
-
+
U6A
R64
R68
C21
VR1
R3
R77
R75
R_34
R_32
C6
U9
D8
D9
D13
D11
+
C24
D10
J2
R26
+
C19
+
C18
U7
U8
S1
SW2
+
C16
+
C17
L1
R67
C15
D21
R9
R10
-
+
U4B
R11
R22
TP1
Q6
R_10
C_2
C43
R27
R83
C41
VR_2
J13
C5
R2
Q4
+
C_3
R36
D24
D25
U11
R19
1
2
3
J1
J8
C30
C29
C31
C32
C33
C34
C35
C36
C37
C38
C28
R20
C40
-
+
U10B
-
+
U10A
R82
R80
R84
R81
C26
C27
+
C42
R_14
J8-12
J12
R85
MC68HC11A1FN
STRB/RW
STRA/AS
VRL
VRH
MODA/LIR
MODB/VSTBY
/IRQ
/XIRQ
/RESET
XTAL
EXTAL
VSS
VDD
PE7/AN7
PE6/AN6
PE5/AN5
PE4/AN4
PE3/AN3
PE2/AN2
PE1/AN1
PE0/AN0
PD5/SS
PD4/SCK
PD3/MOSI
PD2/MISO
PD1/TxD
PD0/RxD
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PA7/PAI/OC1
PA6/OC2/OC1
PA5/OC3/OC1
PA4/OC4/OC1
PA3/OC5/OC1
PA2/IC0
PA1/IC2
PA0/IC3
E
52 PIN PLCC
51
52
3
2
19
18
17
8
7
1
26
50
48
46
44
49
47
45
43
25
24
23
22
21
20
16
15
14
13
12
11
10
9
4
6
35
36
37
38
39
40
41
42
27
28
29
30
31
5
32
34
33
U5
R28
J_4
J_2
+
C_4
R_2
R_1
R_36
D_3
+
C_12
R_37
-
+
U_5B
R_51
R_50
C_51
C_52
C_50
R_38
R_39
Q_4
D_6
R74
R76
6789
12345
J14
U2E
L3
L4
L5
C4
C2
L2
R13
3
5
2
4 1
J4
8
7
6
5
3
2
U1
D27
R15
U2D
R16
R17
3
5
2
4 1
J5
R14
C1
C3
TP3
X
x 11
.01uF
34184
34184
34184
20K
LOG
25K
-18
7918
7818
35V
1000
35V
1000
4003
THRESH
100K
6.8K
4125
62K
15K
4123
1.5uF
1.5uF
68K
10:1
RATIO
100
1K
CW
LIMIT
15K
JRD
DRAWING NO. 10S5310E
8-27-2003
E
REPLACE VR2 WITH 0 OHM JUMPER - ADD H30N01500 HEAT SINK TO U11
R_19 FROM 68 TO 33 - R_20 FROM 2.4K TO 5.6K - REMOVE R_21 R_22 VR1
CHANGE VCA TO 2180LC - R69-70 FROM 220 TO 2K - R_10/_11/_23 FROM 2K TO 1K
5310-1
E
8-27-03
635
VCX-80/VCM-88
WEBSTER, NY 14580-9103
847 HOLT ROAD
PCB REV
SCH REV
DCN
DESCRIPTION
DATE
8 CHANNEL REMOTE VCA/LIMITER
SCHEMATIC DIAGRAM
REV.
DATE:
DATE:
OF
SHEET
SCALE:
APPROVED:
DRAWN:
ASHLY AUDIO INC.
ASHLY
ADJ
SYM
(AMX)
ASHLY
CRESTRON
RS232
DATA CONFIGURATION
RS-232
MIDI CONTROL
VCM-88 ONLY
VCM-88 ONLY
VCM-88 ONLY
SIG PRES
ALL DIODES 1N4003, ALL UNMARKED RESISTORS 10K
UNLESS OTHERWISE MARKED, ALL RESISTORS 5% 1/4W, ALL CAP VALUES uF,
NOTES:
O
CONFIGURATION
DATA
MIDI
T
V
PATCH OUTPUT PIN
P-
SHUNT
INPUT
PATCH
1-JACK INSERT
2-JACK INSERT
PINS
INPUT
PATCH
DATA DIS
REM DIS
HC11 - PIN20
RxD
+5
MIDI THRU
MIDI IN
-18
IN SERIES
LED CIRCUITS
7
OFF AT -19dBu
ON AT -18dBu
SIG PRES
PRES
SIG
-.5VDC
+18
-18
PASS-THRU
VCA
(PD4)
REM DIS
10.00K IS +/-.1%
CW
L
R
IN
OUT
IEC 320
ACINLET
CW
10
9
BUS
SUMMING
SUMMED OUTPUT
CHANNELS 1-8
-23dBU TO +23dBu
-4VDC
$00=+15.1V=-75dB
-4VDC
35mA LIMIT
33mA I LIMIT
DATA IN
DAC
SYNC
13
5
3
6
1
7
2
4
14
11
3
2
1
3
1
2
3
2
1
10
11
12
2
3
4
5
120/240
1
3
2
5.33dB/VOLT SCALE
-75dB TO +20dB RANGE
$FF=-3.75V=+20dB
$00=+5.81V
$FF=-1.45V
Vo = (-0.727)Vi + 5.81
$CD=8V ON RESET
$00=0V
$FF=9.96V
0dB SHIFT
ADJ
NULL
-18
-18
DATA DISABLE
+15
10K LINEAR
HC11 PIN 25
FROM PD5
+5
NEUT
GROUND
HOT
BANK SELECT
43210
+5
UNIVERSAL
+5
48KHz LPF
POWER
10.0K
40.2K
THRESH.
1 VOLT
RING=OUT
TIP=INPUT
FOR 1-JACK:
+18
CONNECTOR FOR DC CTRL
MASTER
EXAMPLE OF DC CONTROL OF CHANNEL 1:
240V
120V
IN/IO
CW
TO DSUB
4800bps
RESET CIRCUIT
+5
MASTER ATTENUATOR
+18
8-BIT DAC
CW
DISABLE
REMOTE
IN
OUT
DISABLE
REMOTE
IN
OUT
LIMIT
-18
ATTACK
RELEASE
IN SERIES
7 LED’S
-18
-18
UNREG.
+27
+27
+18
+18
+18
+78VDC
-18
+5
+18
1 OF 8 CHANNELS
LEVEL SHIFTER/SCALER
-18
-18
DATA
REMOTE
+5
+5
+5
+18
+18
+5V
+5V
+5V
+5V
+5V
DATA INPUT
51P7106
65VAC FROM
-18
Vo
Vi
OUTPUT
CH.1
CH.1
HEAT SINK
None
0
None
None
None
-18
+18
5.6K
33
1K
1K
1K
2K
2K
2180LC
47K
15K
7815
.001uF
100K
100K
BEAD
BEAD
BEAD
BEAD
.001
.001
.001
.001
4148
220
220
6N138
220
2.4K
2.4K
G
4125
100K
.1uF
10M
.1uF
LM393
.1uF
1M
1M
1.5uF
1K
150K
470K
751
X
X
4.7K
100V
47
100
100
4560
4560
JUMP
9.76K
1M
10U
33
33
X
X
22
X
X
X
X
931
6.34K
18K
34184
34184
34184
34184
10K
10.0K
5.1V
4125
4125
4123
100K
JUMP
X
1N270
3.3K
.001U
ON SINK
18P
18P
8MHz
10M
4123
27K
4125
4148
1M
.1U
27P
27P
19.6K
19.6K
18K
G
1K
4560
34184
B10K
10.0K
10.0K
10.0K
1M
27K
10P
LM393
4148
4148
.1U
.1U
300K
20K
10K
40.2K
JUMP
10.00K
JUMP
1M
300K
150K
40.2K
40.2K
10.00K
10.00K
RED
330
51P7106
4148
4148
4148
4148
4148
YEL
2.4K
2.4K
4123
4148
1M
2K
971
100V
.1U
1/2AGC
1.5U
1.5U
1.5U
7805
GREEN
754
LM393
47U
4.7K
1M
100
100
100
100
27P
10.0K
10.0K
10.0K
10.0K
15.8K
.1U
10U
47UF
47UF
47UF
6.8V
FEMALE XLR
4003
.1uF
10
TIP29C
4123
.001
20K
100V
27V
100uF
4560
47U
-18
13
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
12
34
8
9
10
14
12
13
1
3
2
7
5
6
10
11
8
9
2
11
12
8
7
6
5
4
3
2
1
10
9
10P5312
10P5312
BLACK WIRE
DC CONTROL
CARD
RS232
D15
D14
D17
D16
Schematic Diagram: VCM-88