Star Micronics TUP400 Series, Technical Manual

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3. DIP-Switch Settings
DIP switches are located on the interface board and they differ according to the type of interface.
(1) Setting the DIP Switches
1. Turn the power supply OFF.
2. Remove the screw holding the ROM cover in place. (The screw is located at the base of the paper-roll holder.)
3. Remove the ROM cover to expose the main and interface PCBs
4. Set the DIP-switches on the interface board.
Fig. 1-3 DIP-Switch Settings
DIP Switches
VP4 (Black Mark Sensor)
EPROM
Main Logic Board
VP3 (Paper End Sensor)
Interface Board (RS-232C)
Fig. 1-4 Main Interface Board