PCMDB1 (EPSON) C bus MPEG decode board for EPSON 98 compatible machines.4 dips on the board There is one switch, two 8-deep dip switches, and five two jumper switches. ・ 4 stations dip switch SW1: No change (always ON-ON-ON-ON) ・ 8 stations dip switch SW2: I / O port address setting 1-2-3-4: I / O port address setting  ON-ON-OFF-ON 0488H  OFF-ON-OFF-ON 0568H  ON-OFF-OFF-ON 0768H  ON-ON-OFF-OFF 0C68H  OFF-ON-OFF-OFF 0D68H  ON-OFF-OFF-OFF 0E68H  OFF-OFF-OFF-OFF 0F68H 5-6-7-8: No change (always ON-ON-ON-ON) ・ 8 stations dip switch SW3: Change prohibited (ON-ON-ON-OFF-ON-OFF-OFF-OFF-ON) ・ Two jumper switches J4, J5, J6, J7: Interrupt level setting  J4 short ■ INT 0  J5 short ■ INT 1  J6 short ■ INT 2  J7 short ■ INT 4 ・ 2 jumper switch J8: Not set