AU[3..10] AU[3..10]
H4
2
A0
15 O0 1
O1 2
O2 3
O3 4
O4 5
O5 6
O6 7
O7 9
O8 10
O9 11
A2
13
A1
14
A3
12
U317
74LS42
I0
1
I1
2
I2
3
I3
4
I4
5
I5
6
I6
7
I7
8
O0 18
O1 17
O2 16
O3 15
O4 14
O5 13
O6 12
O7 11
GND-SUB 10
VCC 9
U217
UDN2585
AU10
AUX BAR ANODE DRIVER
LA0
+5V +5V
AUX SIGNAL PEAK PROCESSOR
+12V
3
2
1
8
4
U844A
LT1018
NOTE: R857
3.24M
2.00M
2.00M
760A
760D
760N
+12V
R849
10.0K
R851
10.0K 2
3
1
4
1
1
U853A
MC34084
CR851
CR850
SELECT_BAR
H1
4
-12V
CHANNEL
MATCH
R852
10.0K
C755
10UF R758
500
CR852
CR853
6
5
7
U853B
MC34084
-12V
+12V
R855
8.45K
R853
18.2K R356
43.2K
OFFSET
C855
.1UF
R857
3.24M
10
9
8
U853C
MC34084
CR855
C854
5.6PF
CR854
R854
4.75K 12
13
14
U853D
MC34084
R553
20K
C858
.33UF
R554
1.00M
+5V
C
X
1
4
R
X
1
5
A
1
B
2 C
L
3
Q13
Q 4
U838A
74LS123
R355
2.00K
12
13
14
U453D
MC34084 TP454
6
5
7
U844B
LT1018
R846
100
R843
100
C841
39UF
R842
110.0K
(PK_ON)
R845
100
(ACMP)
R844
10.0K CR846
C3
2
1
2
3
U711A
74LS32
4
5
6
U711B
74LS32
LA1
LA2
LA3
9
10
8
U711C
74LS32
+5V
I1
2
I2
3
I3
4
I4
5
I5
6
I6
7
I7
8
I8
9
CLK
1
OE
11
IO1 19
O2 18
O3 17
O4 16
O5 15
O6 14
O7 13
IO8 12
U848
16R6
AU3
AU4
AU5
AU6
AU7
AU8
AU9
AUX1
AUX2
G3
2
R315
10.0
+5V
C215
.1UF
12
13
11
U711D
74LS32
+5V
A0
A1
A2
A3
A4
A5
A6
A7
D1
3 Q1 2
D2
4 Q2 5
D3
7 Q3 6
D4
8 Q4 9
D5
13 Q5 12
D6
14 Q6 15
D7
17 Q7 16
D8
18 Q8 19
CLK
11
CLR
1
U831
74LS273
P0
2
P1
4
P2
6
P3
8
P4
11
P5
13
P6
15
P7
17
Q0
3
Q1
5
Q2
7
Q3
9
Q4
12
Q5
14
Q6
16
Q7
18
P=Q 19
P>Q 1
U835
74LS684
ATIMEOUT
+5V
A0
A1
A2
A3
A4
A5
A6
A7
C
X
6
R
X
7
A
9
B
10 C
L
1
1
Q 5
Q12
U838B
74LS123
+5V
AUX DYNAMIC RESPONSE CONTROL (PPM)
R716
432
+5V
MASTER CLOCK
C819
.01UF
R717
8.25K
C718
2700PF
DIS
7
THR
6
CV
5 TRIG
2
RST
4
VCC
8
GND
1
OUT 3
U818
7555
C2
+5V
C818
.1UF
9
10
8
U825C
74LS132
E1
2
ADELAY
+5V
(AGATE)
ADELAY
1
2
3
4
5
6
7
8
9
R423
10K
E1
2
B5
4
LA[0..3]
LA[0..3]
LA[4..7]
LA[4..7]
A0
A1
A2
A3
A4
A5
A6
A7
LA0
LA1
LA2
LA3
LA4
LA5
LA6
LA7
D0
3 Q0 2
D1
4 Q1 5
D2
7 Q2 6
D3
8 Q3 9
D4
13 Q4 12
D5
14 Q5 15
D6
17 Q6 16
D7
18 Q7 19
OC
1 CLK
11
U424
74LS374
A[0..7] A[0..7]
+5V
+5V
C
X
6
R
X
7
A
9
B
10 C
L
1
1
Q 5
Q12
U715B
74LS221
R815
60.0k
C815
120PF
+5V
C
X
1
4
R
X
1
5
A
1
B
2 C
L
3
Q13
Q 4
U715A
74LS221
DOWN COUNTER
+5V
A0
A1
A2
A3
CLOCK
A
15 QA 3
B
1 QB 2
C
10 QC 6
D
9 QD 7
RCO 13
CLK
14
CE
4
D/U
5 LD
11
MX/MN 12
U828
74HCT190N
A
15 QA 3
B
1 QB 2
C
10 QC 6
D
9 QD 7
RCO 13
CLK
14
CE
4
D/U
5 LD
11
MX/MN 12
U623
74HCT190N
A0
A1
A2
A3
A4
A5
A6
A7
D2
2
+5V
CLK
11
CE
1
D0
3
D1
4
D2
7
D3
8
D4
13
D5
14
D6
17
D7
18
Q0 2
Q1 5
Q2 6
Q3 9
Q4 12
Q5 15
Q6 16
Q7 19
U142
74LS377
B5
B6
B7
B8
B9
B10
B11
B12
SCALE SHAPER/LOOK–UP TABLE
A0
10
A1
9
A2
8
A3
7
A4
6
A5
5
A6
4
A7
3
A8
25
A9
24
A10
21
A11
23
A12
2
CE
20
OE
22
PGM
27
VPP 1
D0 11
D1 12
D2 13
D3 15
D4 16
D5 17
D6 18
D7 19
NC 26
U137
2764
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B1(MSB)
1 B2
2 B3
3 B4
4 B5
5 B6
6 B7
7 B8
8
6.3 REF 24
B12
12
B11
11
B10
10
B9
9 GAINADJ 23
IOUT 15
REFIN 16
OFFSET 17
SC 20
SC 19
SC 18
VCC+ 22
GND 21
VCC- 14
NC
13
U146
DAC80P
DAC
+12V
+12V
-12V
+12V
-12V
R248
7.5M
R247
2.7M
OFFSET
GAIN
TP248
R252
100K
C149
.01UF
R253
100K
DAC
C2
2
-12V C251
1UF
+5V
(PK_BLK)
E1
2
+5V
+5V
+5V
B1
B2
B3
B4
CLK
11 CE
1
D0
3 D1
4 D2
7 D3
8 D4
13 D5
14 D6
17 D7
18
Q0 2
Q1 5
Q2 6
Q3 9
Q4 12
Q5 15
Q6 16
Q7 19
U132
74LS377
A0
10
A1
9
A2
8
A3
7
A4
6
A5
5
A6
4
A7
3
A8
25
A9
24
A10
21
A11
23
A12
2
CE
20
OE
22
PGM
27
VPP 1
D0 11
D1 12
D2 13
D3 15
D4 16
D5 17
D6 18
D7 19
NC 26
U127
2764
A0
A1
A2
A3
A4
A5
A6
A7
+5V +5V +5V
EXPAND_SCALE
R336
10.0K
R337
10.0K
R344
10.0K
B4
4
+5V
A4
A5
A6
A7
CLOCK
5
1
2
4
8
S340
TP725
760A/760D/760N STEREO AUDIO MONITOR
CLOCK
BAR SCANNER / DRIVER AND DAC 3
PART OF A3 MAIN BOARD