The final piece of the system to look at is the front panel. Here is the front of it where you can see the reset switch, a switch to control the EPROM programmer voltage and the ZIF socket for the EPROM programmer.
On the back there is a small PCB that connects to the two switches. Most of the circuitry on here appears to be to generate the EPROM programmer voltages. Below that PCB is the connector for the ZIF socket. The interesting part of this is that the whole front panel is actually a PCB itself. You can see where the ZIF socket is soldered in and the traces that lead to the connector.
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