Ashly VCM-88 - Manual (Page 20)

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
C16
C15
C14
C13
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
C10
C9
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 3
4 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
150K
470K
22
47U
.1U
680
10K
1K
10K 10K 10K
B50K
B50K B50K B50K B50K
10K 10K 10K 10K
10K B50K B50K B50K B50K
10.0K
10.0K
10.0K
34184
10.0K
10.0K
10.0K 40.2K
34184
34184
34184
4123
.001U
4148
1.0K
10.0K
10.0K 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
18P
18P
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
4
E
12-01
560
12-12-01
E
10S5301E.SCH
ADDED 1N751 ZENER (D25) FROM R7 TO GND TO PROTECT HC11 SUPPLY
D
5-00
525
ADDED R57 - D22 - D23
3 3
C
10-98
461
PCB REV
SCH REV
DCN
DESCRIPTION
DATE
WEBSTER, NY 14580-9103 847 HOLT ROAD
G.G.
REMOTE VCA CONTROLLER PCB
DRAWING NO.
SCHEMATIC DIAGRAM
REV.
DATE: DATE:
OF
SHEET
SCALE: APPROVED: DRAWN:
ASHLY AUDIO INC.
ASHLY
Schematic Diagram: RD-8, R
W-8