Dip Switch Circuit - Citizen iDP-3535 Service Manual

iDP-3535 Service Manual

6. Dip Switch Circuit

1) Dip Switch Circuit
DS1 (Dip switch) is composed of eight switches, and reads with AN0 to AN7 of IC1.
ONLINE / OFFLINE, character, CR control, AW / DR1 and so on can be set by setting of
the Dip Switch.
2) PE (Paper end) Circuit
ON / OFF signals from the mechanical switch is input to PB5 of IC1 through R13, C4,
and IC7 (74LS04). Presence / absence of paper is detected by ON / OFF of the switch.
Fig. 6-1 Dip Switch and PE Control Circuit
20
CITIZEN