SWITCH I

 

1 2

3 4 5 6 7 8

 

 

SWITCH II

 

1 2 3 4

K/B TYPE

ENHANCED

OFF

 

 

 

PARALLEL

PRIMARY

OFF ON

COPROCESSOR

NOT INST

ON

 

 

 

 

 

 

 

 

 

 

 

 

SECONDARY

OFF OFF

RAM SIZE

640KB

 

 

 

 

 

 

 

 

 

OFF OFF

 

 

 

DISABLE

ON ON

 

 

512KB

 

OFF ON

 

SERIAL

PRIMARY

OFF OFF

 

 

256KB

 

ON ON

 

 

 

SECONDARY

ON OFF

MONITOR TYPE

COLOR(40X25)

 

OFF ON

 

 

 

DISABLE

ON

 

 

COLOR(80X25)

 

ON OFF

 

 

 

 

 

 

 

MONOCHROME

 

OFF OFF

 

 

 

 

 

 

NO. OF FDD(S)

SINGLE

 

ON ON

 

 

 

 

 

 

 

DUAL

 

OFF ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1-12. DIP switch label

When a switch is up, it is on. When a switch is down, it is off. To change a setting, use a hard, thin object, such as a small screwdriver.

DIP switch set 1 (internal operations)

The system functions controlled by each switch in set 1 are listed in Table 1-2 and described below.

Table 1-2. DIP switch set 1

 

 

 

1

2

3

4

5

6

7

8

Keyboard type

Enhanced

O F F

 

 

 

 

 

 

 

Coprocessor

Not installed

 

ON

 

 

 

 

 

 

 

 

Installed

 

OFF

 

 

 

 

 

 

RAM Size

640KB

 

 

OFF

OFF

 

 

 

 

 

 

512KB

 

 

OFF

O N

 

 

 

 

 

 

256KB

 

 

O N

ON

 

 

 

 

Monitor and

Color(40X25)

 

 

 

 

O F F

ON

 

 

adapter type

Color(80X25)

 

 

 

 

O N

OFF

 

 

 

 

Monochrome

 

 

 

 

OFF

OFF

 

 

 

 

Enhanced

 

 

 

 

ON

ON

 

 

Number of

1

 

 

 

 

 

 

ON

ON

floppy disk

 

2

 

 

 

 

 

 

OFF

O N

drives

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

ON

O F F

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

OFF

O F F

1-14