Epson 10020 - Manual (Page 132)

Note
Set the DIP switches only while your computer is off.
Because software programs check the settings each time you
cum on the system, do not change the settings while a
program is running.
Your computer has two sets of DIP switches; set 1 contains
eight switches which control the computer’s internal
operations, and set 2 contains four switches which control the
parallel and serial ports. The label inside the DIP switch cover
shows the function and factory setting of each DIP switch.
A switch is ON when it is up and OFF when it is down. To
change the setting, use a hard, thin object, such as a small
screwdriver or a pencil.
DIP Switch Set
1
(Internal Operations)
The following table lists the system functions controlled by
each switch in set 1.
DIP switch set I
1 2 3 4 5 6 7 8
Keyboard
type
Coprocessor
RAM size
Monitor and
adapter type
Number of
diskette
drives
Standard ON
Enhanced OFF
Not installed ON
Installed
O f f
640KB OFF OFF
512KB Off ON
256KB ON ON
Color (40x25) OFF ON
Color (80x25) ON OFF
Monochrome OFF OFF
Enhanced ON ON
1 ON ON
2 OFF ON
A-2 Changing DIP Switches and Using Setup