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Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Controllers
ASHLY AUDIO INC. 847 Holt Road Webster, NY 14580-9103
Phone: (585) 872-0010 Fax: (585) 872-0739
Toll Free (800) 828-6308 www.ashly.com
© 2004 by Ashly Audio Corporation. All rights reserved worldwide.
VCM R-3
20
Printed in USA 0204
R32
C16C15C14C13
R43
D13
VR1
SW2
VR9
R10
R51
VR2
D14
R44
R45
D15
VR3
R52
SW3
SW4
R53
VR4
D16
C12
R24
Y1
C19 C20
R40
++
C18 C21
-
+
+
-
U2A
R39
D26
C5
R36
D1
C17
R41
D25
R57
R42
R8
R6
R12
R5
-
+
+
-
-
+
+
-
R9
Q1
R46
R50
R7
SW5
R54
R56
D20
VR8
R38
SW8
SW7
R37
VR7
D19
R49
R48
D18
VR6
C11
D4
R33
R4
SW1
C10C9
R1
VR5
D17
++
C2
D2
D5
R15
D7
D8
++
C6
D9
D10
++
C7
++
C8
R11
D23
TP1
R14
D3
1
2
3
J1,2
++
C4
R3
C1
SW9
D6
C3
D22
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
U3
R34
R47
D12
D11
R35
R55
SW6
D24
D21
R22
R17
R31
-
+
+
-
U1A
-
+
+
-
U1
R23
R13
R16
1N4003
1N4003
2
34
1
FADER
-3.7V
10.5mA TYP
22.5mA
-3.7V
SYNC
+15.1V
X
+25VDC
.5m MAX
6mA MAX
6.7mA
+5
+15.1V
+15.1V
MASTER
2Vpp
21mA TYP
8-BIT DAC
CH.8
CH.7
CH.6
CH.5
CH.4
CH.3
CH.2
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
CH.1
ON
ON
ON
ON
ON
ON
ON
ON
ON
NEG. CHARGE PUMP
DISABLE
REMOTE
RESET CIRCUIT
+5 TO uC
4800bps
+5
+5
+5
+5
+5
+5
DATA OUT
FEMALE XLR
4148
470
5818
5818
5818
5818
1N751
100
3
2
1
1N751
2
3
1
150K470K
22
47U
.1U
680
10K
1K
10K
10K
10K
B50K
B50K
B50K
B50K
B50K
10K
10K
10K
10K
10K
B50K
B50K
B50K
B50K
10.0K10.0K
10.0K
34184
10.0K
10.0K
10.0K
40.2K
34184 34184
34184
4123
.001U
4148
1.0K
10.0K10.0K
10.0K
300K
20K
1M
300K
150K
40.2K
40.2K
10K
40.2K
1M
10K
10K
27K 4003
4003
4003
.015U
47U
GRN
GRN
GRN
GRN
GRN
GRN
GRN
GRN
GRN
10K
10K
10K
10K
10K
10K
10K
10K
10K
RED
LM393
4148
4148
47U
47U
47U
47U
758
10V
100
.1UF X 8
10K
10K
10K
10K
5.1V
.1U
.1U
10M
8.0MHz
18P18P
5
6
7
8
10
9
14
12
13
11
4
2
3
1
1
CHANGED D7-D10 TO 1N5818, R1 FROM 560 TO 470, ADDED D26
4E12-01560
12-12-01
E10S5301E.SCH
ADDED 1N751 ZENER (D25) FROM R7 TO GND TO PROTECT HC11 SUPPLY
D5-00525
ADDED R57 - D22 - D23
3
3
C10-98461
PCB REVSCH REVDCN DESCRIPTIONDATE
WEBSTER, NY 14580-9103
847 HOLT ROAD
G.G.
REMOTE VCA CONTROLLER PCB
DRAWING NO.
SCHEMATIC DIAGRAM
REV.
DATE:
DATE:
OFSHEETSCALE:
APPROVED:
DRAWN:
ASHLY AUDIO INC.
ASHLY
Schematic Diagram: RD-8, RW-8