Applix 1616 circuit diagrams


Keyboard, Cassette, Printer, Serial

IC51 pin 1 is 30 MHz, 2 is 15 MHz (=30/2), 19 is 7.5 MHz (=15/2), 18 is 3.75 MHz (=7.5/2), 17 is 1.875 (=3.75/2) but wrongly marked 1.825 MHz on some schematics.

IC73-66, 46-39 are 265K x 16 bit = 128 Kbyte video DRAM.


CPU, ROM, RAM, Video