Changes
The NLQ401 PCB can be optionally fitted with RS232 interface (25pin DSUB connector, and 75188/75189 voltage converters, this might also require a different firmware version).
== Manual Manuals == * User Manual...* Service Manual...* [[Media:UPD7811G Datasheet.pdf|uPD7811G Datasheet]] (8bit CPU with 4096 byte ROM, 256 byte RAM, 44 I/O lines)
== Pictures ==
