Keithley 707A Instruction Manual page 127

Principles of Operation
Ta
ble 6-1
Display segment assignments
Display
Segments
Display
MUX
Columns
15
14 13
12 11 10 9 8
1-15 Annunciator
LEDs
DS32-DS40
Alphanumeric
digit
1
DSl
(MSD)
Alphanumeric
digit
2
DS
Alphanumeric
digit 3
DS2
Alphanumeric
digit
4
DS2
Alphanumeric
digit 5
DS3
Alphanumeric
digit
6
DS3
Alphaniiraeric
digit
7
DS4
16-23 Upper make/
break
LEDs
DS8-DS9
C:ard
1
column
1
DS8-DS9
Card
1
column
2
DS8-DS9
Card
1
column
3
DS8-DS9
Card
1
column 4
DS8-DS9
Card
1
column
5
DS8-DS9
Card 2
column
1
DSl
2-
DSl
3
Card
2
column 2
DS12-DS13
Card 2
column
3
DS12-DS13
Card
2
column 4
DS12-DS13
Card
2
column
5
DS12-DS13
32-39 Upper
break/
make
LEDs
DS18-DS19
Card
3
column
1
DS16-DS17
Card 3
column
2
DS16-DS17
Card
3
column
3
DS16-DS17
Card
3
column 4
DS16-DS17
Card
3
column
5
DS16-DS17
40-47 Lower make/
bretik
LEDs
DS20-DS21
Card 4
column
1
DS20-DS21
Card 4
column
2
DS20-DS21
Card
4
column
3
DS20-DS21
Card 4
column 4
DS20-DS21
Card 4
column
5
DS20-DS21
48-55 Card
5
column
1
DS24-DS25
Card
5
column
2
DS24-DS25
Card
5
column
3
DS24-DS25
Card
5
column 4
DS24-DS25
Card
5
column
5
DS24-DS25
56-63 Lower
break/
make
LEDs
DS30-DS31
Card
6
column
1
DS28-DS29
Card 6
column
2
DS28-DS29
Card
6
column
3
DS28-DS29
Card 6
column 4
DS28-DS29
Card
6
column
5
DS28-DS29
Display
Segments
Display
MUX
columns
7 6 5 4 3
2
1
1-15 Alphanumeric
digit 8
DS4
Alphanumeric
digit 9
DS5
Alphanumeric
digit
1
0
DS5
Alphanumeric
digit
1 1
DS6
Alphanumeric
digit
12
DS6
Alphanumeric
digit 13
DS7
Alphtmumeric
digit
14
DS7
(LSD)
Card
1
column
6
DSiO-DSll
Card
1
column
7
DSlO-DSll
Card
1
column
8
DStO-DSLl
Card
1
column 9
DSlO-DSn
Card
1
column
10
DSIO-DSLI
Card
1
column
1
DSlO-DSll
Card
1
column
12
DSlO-DSll
Card 2
column 6
DS12-DSI3
Card 2
column 7
DS12-DS13
Card 2
column
8
DS12-DS13
Card 2
column
9
DS12-DS13
Card 2
column
10
DS12-DS13
Card
2
column
1
DS12-DSI3
Card 2
column
12
DS12-DS13
32-39
Card
3
column
6
DS16-DS17
Card
3
column
7
DS16-DS17
Card
3
column
8
DS16-DS17
Card
3
column
9
DS16-DS17
Card
3
column
10
DS16-DS17
Card
3
column
1
DS16-DS17
Card
3
column
12
DS16-DS17
40-47 Card 4
column
6
DS22-DS23
Card 4
column
7
DS22-DS23
Card 4
column
8
DS22-DS23
Card
4
column
9
DS22-DS23
Card 4
column
10
DS22-DS23
Card 4
column
1
DS22-DS23
Card 4
column
12
DS22-DS23
48-55 Card
5
column 6
DS24-DS25
Card
5
column
7
DS24-DS25
Card
5
column
8
DS24-DS25
Card
5
column
9
DS24-DS25
Card
5
column
10
DS24-DS25
Card
5
column
1
DS24-DS25
Card
5
column
12
DS24-DS25
56-63 Card 6
column
6
DS28-DS29
Card 6
column
7
DS28-DS29
Card 6
column
8
DS28-DS29
Card 6
column 9
DS28-DS29
Card 6
column
10
DS28-DS29
Card 6
column
1
DS28-DS29
Card 6
column 12
DS28-DS29
Note;
MSD
—
Most
significant digit
LSD
~
Least
significant digit
6-12