Epson Equity LT-386SX User Manual - Page 120
A-4 DIP Switches, Because the computer is upside down, the DIP switch numbers
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Because the computer is upside down, the DIP switch numbers are upside down and the ON/OFF orientation is reversed. Take care when changing a DIP switch setting that you are changing the correct switch. SWITCH DESCRIPTION SW-1 SWAP THE FDD SW -2 PRIMARY DISPLAY SW-3 SELECT SERIAL PORT SW-4 ENABLE SERIAL PORT SW-5 SELECT PARALLEL PORT SW-6 ENABLE PARALLEL PORT SW-7 SELECT B DRIVE SW-8 NOT USED THE PICTURE SHOWS FACTORY SETTING ON: A: IS A: AND B: IS B: OFF : A: IS B: AND B: IS A: ON: PRIMARY IS COLOR DISPLAY OFF : PRIMARY IS MONOCHROME DISPLAY ON: SERIAL PORT IS 3F8H THROUGH 3FFH OFF : 2F8H THROUGH 2FFH ON: ENABLE THE SERIAL PORT OFF: DISABLE THE SERIAL PORT ON: PARALLEL PORT IS 378H THROUGH 37FH OFF. 278H THROUGH 27FH ON: ENABLE PARALLEL PORT OFF : DISABLE PARALLEL PORT ON INTERNAL 13 DRIVE OFF : EXTERNAL 8 DRIVE MUST ALWAYS BE ON The following table lists the system functions these switches control. DIP switch settings 1 ON' Defines the internal 1.44MB, 3'binch diskette drive as A and the external 1.2MB, 5'k-inch drive as 8. OFF Defines the internal 1.44MB, 3'h-inch diskette drive as B and the external 1.2MB, 5'binch drive as A. 2 ON* The primary display is color. OFF The primary display is monochrome. 3 ON* Selects serial port 1 (COM1, I/O addresses 3F8H through 3FFH) as the serial port. OFF Selects serial port 2 (COM2, I/O addresses 2F8H through 2FFH) as the serial port. A-4 DIP Switches
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