...because we can't all be on the bleeding edge...





ENHANCED GRAPHICS ADAPTER (250-4037)

TANDY/RADIO SHACK

ENHANCED GRAPHICS ADAPTER (250-4037)

Card Type

Video card

Video Processor

Unidentified

Maximum Onboard Memory

256KB DRAM

I/O Options

Light pen port

Data Bus

8-bit ISA

Video Types Supported

EGA

Highest Resolution Supported

640 x 350

CONNECTIONS

Function

Label

Function

Label

Light pen port

J5

9-pin video out

P3

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Factory configured - do not alter

J4

Pins 2 & 3 closed

Factory configured - do not alter

SW1/5

N/A

Factory configured - do not alter

SW1/6

N/A

DISPLAY MODE SELECTION (EGA PRIMARY)

Primary

Secondary

SW1/1

SW1/2

SW1/3

SW1/4

Monochrome

None

Off

Off

On

Off

Lo-res CGA

None

On

Off

Off

On

Hi-res CGA

None

Off

Off

Off

On

Lo-res EGA

None

On

On

On

Off

Hi-res EGA

None

Off

On

On

Off

None

Monochrome

Off

On

On

On

Lo-res CGA

Monochrome

On

On

On

On

Hi-res CGA

Monochrome

Off

On

On

On

Lo-res EGA

Monochrome

On

On

On

On

Hi-res EGA

Monochrome

Off

Off

On

On

Monochrome

Lo-res CGA

On

Off

On

Off

Monochrome

Hi-res CGA

Off

Off

On

Off

DISPLAY MODE SELECTION (EGA SECONDARY)

Primary

Secondary

SW1/1

SW1/2

SW1/3

SW1/4

Monochrome

None

Off

On

On

On

Monochrome

Lo-res CGA

On

On

On

On

Monochrome

Hi-res CGA

Off

On

On

On

Monochrome

Lo-res EGA

On

Off

On

On

Monochrome

Hi-res EGA

Off

Off

On

On

Lo-res CGA

Monochrome

On

On

Off

On

Hi-res CGA

Monochrome

Off

On

Off

On

MONITOR TYPE SELECTION

Setting

J2

SW1/7

SW1/8

Monochrome

Pins 2 & 3 closed

On

Off

CGA

Pins 2 & 3 closed

On

Off

400-line 25MHz

Pins 2 & 3 closed

Off

On

EGA

Pins 1 & 2 closed

On

Off