Instruction manual
Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual
4-9
Figure 4-3: ICS-22 Schematic (part no. 710470)
A
A
B
B
C
C
D
D E
4 4
3 3
2 2
1 1
E
R35
100*
R10A
10K*
C37
.01uF
R53
10
D11
BAV99
R8B
10K*
R8C
10K*
R1B
100K*
R8D
10K*
R8A
10K*
R1D
100K*
R10B
10K*
IC8B
LM833
+
-
P6
R26
470K*
C6
4.7uF
+
D12
BAV70
R22
825*
S3A
510114
S3C
510114
S3B
Q2
MMBT2907A
Q4
MMBTA64
R54
1M
C18
.047uF
R20
430*
D3
BAV99
C11
4.7uF
C25
.1uF
IC2A
LM833
+
-
IC1A
LM833
+
-
IC11
7805L
C42
10uF
+
R45
100*
C41
100uF
+
Q3
MMBFJ175
IC5
LM384
-
+
C30
47pF
C43
1uF
+
R31
20K*
D4
BAV99
C34
.1uF
C17
100uF
+
C32
.1uF
R46
390
R10C
10K*
S2
C15
.22uF
C10
.1uF
R2A
47K*
R2B
47K*
D14
C5
47pF
R52
8.2K*
R43
1.5K*
P2
R7D
220K*
R42
2K*
C44
.47uF
+
Q5
MMBTA14
R39
20K*
R1C
100K*
IC9C
DG444
D9
BAV70
Q1
MMBFJ175
R11A
10K*
D13
BAV99
IC1B
LM833
+
-
R7B
220K*
C29
.01uF
C31
.01uF
D7
5.1V
P3
C7
470pF
R23
5K POT
R11B
10K*
R7A
220K*
R7C
220K*
C35
.047uF
R18
2K*
D16
BAV70
R11C
10K*
R11D
10K*
R34
20K*
J1
C28
22uF
+
R2D
47K*
R37
56.2K*
R47
300*
R41
56.2K*
C16
.0022uF
C22
.0047uF
R12
100K
S5
S4
R44
1.3K 1/2 W
D10
5.1V
P1
J2
IC2B
LM833
+
-
R24
20K*
IC10
PIC16C505
P9
IC9B
DG444
R25
39*
W4
JUMPER
W2
JUMPER
W3
JUMPER
W1
JUMPER
C2
1uF
+
C33
.1uF
R33
1K*
C36
.1uF
P5
P7
R6
100K*
S1
R48
2.74K*
R9A
10K*
D2
BAV99
R16
15K*
R17
6.8K*
D15
BAV70
D1
BAV99
R14
1K*
C21
.22uF
C19
47pF
C20
.0047uF
C23
.22uF
R21
2K*
R13
220
C9
.0047uF
R4D
470K*
R2C
47K*
R49
100K*
IC9D
DG444
C26
220pF
R19
12.1K*
C24
.047uF
C14
22pF
R32
121K*
R28
6.2K*
R50
100K*
R9B
10K*
R4B
470K*
IC9A
DG444
C46
470pF
C40
.01uF
C39
.47uF
+
R4C
470K*
R4A
470K*
R9C
10K*
R15
10
J3
C8
220uF
+
R9D
10K*
C1
.01uF 1.4KV
R27
2.2
C27
47pF
P8
R38
12.1K*
C45
.1uF
C38
.01uF
R3C
47K*
R3D
47K*
D8
R
G
2
1
3
C47
220uF
+
R51
300*
R3A
47K*
R3B
47K*
IC8A
LM833
+
-
C13
.01uF
R29
5K POT
R40
5K POT
R36
10K POT
D5
BAV99
D6
BAV99
JP1
C4
1uF
+
C12
1uF
+
R10D
10K*
R30
20K*
R1A
100K*
P4
+V1
Bias-1
+V1
+V2 +V2 +V2
+V2
+V2
Bias-1
+V2
Bias-1
+V1
VDD
+V1
+V3
VDD
VDD
VDD
Bias-1
Bias-1
+V1
Bias-1
Bias-1
Bias-1
+V2
Bias-1
Bias-1
+V1
+V3
VDD
Bias-1
+V1
+V1
VDD
VDD
+V1
18
1 2
3
2 7
3 6
27
4 5
18
45
2 7
5
6
7
1
2
3
1 2
3
16
3 4
2 5
2
1
3
12
3
3
2
1
8 4
3
2
1
8 4
VIn
3
VOut
1
GND
2
3
21
6
2
8
7
3
1
14
4
5
10
11
12
13
12
3
36
2
1
3
5
4
6
18 2 7
1
2
4 5
36
11
9
10
12
3
3
2 1
18
12
3
5
6
7
27
13
1
2
3
4
5
6
7
8
3 1
2
2 7
18
36
1 2
3
36
45
1
2
3
4
5
6
7
8
9
10
45
2
1
3
5
4
6
2
1
3
5
4
6
1 3
1
2
3
4
5
6
7
8
9
10
+
1
+
3
+
5
+
7
+
9
+
11
+
13
+
2
+
4
+
6
+
8
+
10
+
12
+
14
5
6
7
RB0
13
RB1
12
RB2
11
RB3
4
RB4
3
RB5
2
RC0
10
RC1
9
RC2
8
RC3
7
RC4
6
RC5
5
VDD
1
VSS
14
1
2
3
4
5
6
6
8
7
1
2
3
1
2
2
1
3
18
1 2
3
1 2
3
12
3
45
36
14
16
15
27
27
3
1
2
13
4
5
12
3 6
18
36
1
2
3
4
5
6
7
8
45
1
2
3
36
45
1 8
27
3
2
1
8 4
3 1
2
3 1
2
3 1
2
12
3
1 2
3
45
18
1
2
3
4
5
NOTES: (UNLESS OTHERWISE SPECIFIED)
1. ALL RESISTORS ARE 1/10W 5% LISTED IN OHMS
2. ALL CAPACITORS ARE LISTED IN MICROFARADS
3. ALL DIODES ARE 1N4148
CW
SIDETONE
NULL
CALL
LIGHT
CALL
SPEAKER
INTERCOM
CHANNEL(S)
CHANNEL
SELECTOR
SPEAKER
ON-OFF
CH A CH B
SPARES:
PREAMP
INTERCOM
LINE
DRIVER
INTERCOM
LINE
RECEIVER
POWER
AMPLIFIER
CALL
SIGNAL
SINGLE
CHANNEL
LONG LINE
TW POWER
OPTION
VOXTALK
LATCH
DISABLE
TALK
4-WIRE
OPTION (1)
ALERT
TONE
VOLUME
PROGRAM
VOLUME
PROGRAMMING / TEST INTERFACE
1 - Gnd / Gnd
2 - Data / Strobe
3 - n/a / Data Out
4 - Clock / Clock
5 - MCLR (not) / Data In
6 - +5V / n/a
4-WIRE
OPTION (2)
BALANCED
PROGRAM
INPUT
CW
INTERCOM
VOLUME
CW
CW
CALL ON
BOTH
CALL ON
SELECTED
HEADSET
XLR 4
XLR 3
XLR 2
XLR 1
XLR G
GM / VOX
OPTION