3.2.2
FAX725M/590DT/590MC/825MC/875MC
[ 1 ] Primary function group
Main PCB Circuit Diagram 1/5
1 FAX engine (ASIC) which integrates a CPU and gate array.
2 Clock for CPU
3 Clock for calendar clock
4 ROM (2-megabit. Note that the sample machines for demonstration have a 4-
megabit ROM.)
2
5 E
PROM (16-kilobit in the FAX725M/590DT/590MC/825MC, 32-kilobit in the
FAX875MC)
6 Control panel connector
7 LED array light intensity control circuit and connector
8 Recording head drive voltage detector
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