AudioArts Engineering R-55 - Page 99

VCC
1
6
5
4
3
2
1
6
5
4
3
2
7400ACT
IC PINOUT
VIEWED FROM ABOVE
(COMPONENT SIDE)
VSS
I1a
I2a
Oa
I1b
I2b
Ob
Oc
I1c
I2c
Od
I1d
I2d
VCC
7
6
5
4
3
2
114
13
12
11
10
9
8
2 OF 3
16S0021
SPN-2000 PCB
9-18-01
SPN-55
W# 700657
SA
SA
SA
SPN-55 Superphone Module Schematic - Sheet 2 of 3
page 11 - 16
R-55/Apr 2003
-
A
B
C
DD
C
B
A
87654321
12345678
SIZE FSCM NO. DWG. NO. REV
D
SHEETSCALE
DATEAPPROVALS
CONTRACT NO.
DRAWN
ISSUED
CHECKED
New Bern, NC 28562
600 Industrial Drive
29
31
32
30
58
55
74ACT00
74ACT00
74ACT00
74ACT00
VCC VCC VCC
3
2
1
7 POSITION
DIPSWITCH
PINOUT
VIEWED FROM ABOVE
(COMPONENT SIDE)
1
2
3
4
5
6
78
9
10
11
12
13
14
ON
ON
ON
ON
ON
ON
ON
1
2
3
4
5
6
7
VIEWED FROM ABOVE
(COMPONENT SIDE)
TYPICAL 2 POLE
SWITCH PINOUT
AB
NO
NC
NC
NO
3
1
56
4
2
14
16
15
5
4
3
2
1
17
6
18
19
NOT INSTALLED NOT INSTALLED
62 PIN
EDGE
CONNECTOR
CUE LOGIC~
TIMER RESTART~
MUTE2~
MUTE1~
DIG.COM.
+DIG
"ON"SW
"OFF"SW
ON
SW
OFF
SW
PGM
SW
AUD
SW
MONO
SW
PRE
SW
CUE
SW
DIGITAL COMMON
+5V
START
STOP
ON TALLY
MACHINE COMMON
REMOTE OFF
REMOTE ON
"CUE" SW
FDR
CUE SW