Digital Section - Elenco Electronics M-1005K Assembly And Instruction Manual

TYPICAL SEGMENT OUTPUT
Figure 7-2
7106 IC Functions
* Three inverters.
One inverter shown for clarity.
IN HI
COMMON
IN LO
Figure 7-3
V+
0.5mA
Segment
Output
2mA
Internal Digital Ground
From Comparator Output
*
40
OSC 1 OSC 2
C
REF
REF HI REF LO C
C +
REF
34 36 35
V+
A-Z & A-Z &
Z1 Z1
10 A
INT
31
DE (-) DE (+)
A-Z
DE (+) DE (-)
32
A-Z & DE(+)
INT
& Z1
30
a
b
LCD PHASE DRIVER
7 Segment 7 Segment
Decode Decode
LATCH
Thousand Hundreds
To Switch Drivers
CLOCK
-4
Internal Digital Ground
39
38
OSC 3
C
R AZ
INT
AUTO
BUFFER V+
REF
ZERO
1
33
28 29
INTEGRATOR
+
+
6.2V
2.8V
A-Z COMPARATOR
Z1
+
26
V
-13-
a
f
b
g
e c
d
BACKPLANE
21
7 Segment
200
Decode
Tens Units
V+
6.2V
LOGIC CONTROL
37
TEST
500
1V
26
V

DIGITAL SECTION

C
INT
INT
27
ZERO
CROSSING
+
DETECTOR
TO
DIGITAL
SECTION
POLARITY
FLIP/FLOP
ANALOG SECTION of 7106