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MIL-DTL-28803-4 Display, Optoelectronic, Segmented Readout, Backlighted, Style I \(Incandescent\), Dot Pattern And Bar Pattern, Type Ro4 \(Replacement Parts For Type Ro3 Display Assembly\)

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MIL­DTL­28803/4D
TABLE IV. Truth table for seven segment direct wire display (circuit configuration 3).
Output (Δ = segment lit)
Input
Display
A
B
C
D
E
F
G
1/
A
B
C
D
E
F
G
H
J
K
L
M
N
P
2/
H
J
K
L
M
N
P
R
S
T
U
V
W
X
3/
R
S
T
U
V
W
X
Δ
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
O
Δ
Δ
O
O
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
Δ
Δ
Δ
Δ
O
O
O
O
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
Δ
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
O
Δ
Δ
Δ
O
O
O
Δ
Δ
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
O
O
Δ
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
O
Δ
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
O
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
Δ
Δ
Δ
Δ
O
O
O
O
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
Δ
Δ
Δ
Δ
Δ
O
O
O
O
O
Δ
Δ
Δ
Δ
O
O
O
O
1/
Pattern used on first 7 segment module.
2/
Pattern used on second 7 segment module (if present).
3/
Pattern used on third 7 segment module (if present).
NOTE: Typical 7 segment pattern repeats as A through G, H through P, and R through X (see figure 4).
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