There are roughly three categories of wiring running to the Relay Module - low voltage control signals, high voltage power connections, and high voltage lines to individual segments of the EL Panel. I chose to use blue wire for the control lines and yellow for all the high voltage lines.
The first phase was to wire up all the control lines, using the blue wirewrap whose other end will go to the breadboard panel I built with all the transistors to drive +14 and ground to these lines for the purposes of latching or unlatching the individual relays in the module. I routed the wires to the right where I will place the transistor board.
Blue control wires hooked to the Relay Module connector |
Second phase was to wire up the sources of 275V AC, 800 Hz which will be routed through the relays to light the segments in the display panel. These were done with yellow wire and routed out the top of the connector to be hooked to the Power Supply module and to two ground pins on the display panel.
The final phase will be connection of the yellow wires between the display module for the individual segments and the relay contacts that power those segments. These are routed to the left where the display panel will sit.
BUILDING ELECTROLUMINESCENT DISPLAY PANEL CONNECTOR
The connector for the Display Module has 160 male pins, but I only need to connect to 50 of those locations since I am only lighting up the PROG, VERB, and NOUN digits, the sign for the first register row, and the fixed text and legends. These are all up at the top, from pin 110 upwards.
50 female pins placed in the connector plate |
WIRING UP ELECTROLUMINESCENT MODULE,
I then wired all the segments with the yellow wire running to the left, so that when the display is facing forward, the wire will run to the right over to the Relay Module sitting next to it. Each digit has seven segments, thus seven wires. The three areas PROG, VERB and NOUN have two digits each.
There are some other pins in use, two for the sign character, two for ground, and two for other purposes. I wired the digits individually, each group of seven wires routed through a shrink wrap tube. These are ready to have their other end wrapped onto the appropriate pins of the Relay Module
Yellow wires for individual segments are attached |
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