STB SYSTEMS, INC.

AUTOEGA

Category

Video

Video Types Supported

EGA/Monochrome

Video Processor

Unidentified

Highest Resolution Supported

800 x 600

Data Bus Type

8-bit ISA

Memory Type

DRAM

Maximum Onboard Memory

256KB (Exact location of memory is unidentified)

CONNECTIONS

Purpose

Location

Purpose

Location

15-pin analog video port

CN1

RCA input/output jack

CN3

Feature connector

CN2

RCA input/output jack

CN4

MONITOR TYPE SELECTION

Type

J4

SW1/1

SW1/2

SW1/3

SW1/4

 

Monochrome

Pins 2 & 3 closed

Off

Off

On

Off

 

RGB 40 x 25

Pins 2 & 3 closed

On

Off

Off

On

 

RGB 80 x 25

Pins 2 & 3 closed

Off

Off

Off

On

 

EGA/Multi-frequency (Normal)

Pins 1 & 2 closed

On

On

On

Off

»

EGA/Multi-frequency (Hi resolution)

Pins 1 & 2 closed

Off

On

On

Off

DUAL MONITOR CONFIGURATION

Primary (AutoEGA)

Secondary (Mono/Printer)

SW1/1

SW1/2

SW1/3

SW1/4

»

EGA/Multi-frequency (Hi resolution)

Monochrome/None

On

Off

Off

On

 

RGB 40 x 25

Monochrome

Off

On

On

Off

 

RGB 80 x 25

Monochrome/None

On

On

On

Off

 

EGA/Multi-frequency (Normal)

Monochrome/None

Off

Off

Off

On

 

Monochrome

RGB 40 x 25

On

Off

On

Off

 

Monochrome

RGB 80 x 25

Off

Off

On

Off

DUAL MONITOR CONFIGURATION

Primary (Mono/Printer)

Secondary (AutoEGA)

SW1/1

SW1/2

SW1/3

SW1/4

 

Monochrome

EGA/Multi-frequency (Hi resolution)

Off

Off

On

On

 

Monochrome

RGB 40 x 25

On

On

On

On

 

Monochrome

RGB 80 x 25

Off

On

On

On

 

Monochrome

EGA/Multi-frequency (Normal)

On

Off

On

On

 

Color 80 x 25

Monochrome

On

On

Off

On

 

Color 40 x 24

Monochrome

Off

On

Off

On

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