Motorola R-20018 Manual page 204

Communications system analyzer
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AF DATA BUS 1
AF DATA BUS 2
AF DATA BUS 3
OVEN LEO ANODE
OVEN LEO CATHODE
OC LED ANODE
OC LED CATHODE
AC LED
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Figure 20-3
Display Board A14A1
Block Diagram
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ROW 3
ROW 4
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