HwMuseum | Index

UNIDENTIFIED

H-EGA CARD

Category

Video card

Video Type

EGA/Monochrome

Video Processor

Unknown

Highest Resolution Supported

800 x 600

Data Bus Type

8-bit ISA

Memory Type

DRAM

Maximum Onboard Memory

64KB (Location unknown)

CONNECTIONS

Purpose

Location

Purpose

Location

9-pin analog video port

CN1

Light pen connector

CN4

RCA connector 1

CN2

Feature connector

CN5

RCA connector 2

CN3

   

MONITOR TYPE SELECT

Type

SW1/1

SW1/2

SW1/3

SW1/4

J2

Monochrome

Off

Off

On

Off

Pins 1 & 2 closed

Standard RGB

Off

Off

Off

On

Pins 1 & 2 closed

Enhanced RGB

Off

On

On

Off

Pins 2 & 3 closed

Note: For EGA mode, SW1/5 should be set in the Off position. For compatible operation SW1/5 should be on.

DISPLAY CONFIGURATION

Primary Monitor

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

J2

40 column standard RGB/Comp

On

Off

On

Off

Off

Pins 1 & 2 closed

80 column standard RGB/Comp

Off

Off

On

Off

Off

Pins 1 & 2 closed

Note: These settings apply when the EGA card is used with an IBM color/graphics display, with EGA primary.

DISPLAY CONFIGURATION

Primary Monitor

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

J2

40 column standard RGB/Comp

On

On

Off

On

Off

Pins 1 & 2 closed

80 column standard RGB/Comp

Off

On

Off

On

Off

Pins 1 & 2 closed

Note: These settings apply when the EGA card is used with an IBM color/graphics display, with CGA primary.

DISPLAY CONFIGURATION

Primary Monitor

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

J2

40 column standard RGB

On

Off

Off

On

Off

Pins 1 & 2 closed

48 column standard RGB

Off

Off

Off

On

Off

Pins 1 & 2 closed

200 line enhanced RGB

On

On

On

Off

Off

Pins 2 & 3 closed

350 line enhanced RGB

Off

On

On

Off

Off

Pins 2 & 3 closed

Note: These settings apply when the EGA card is used with an IBM monochrome display, with EGA primary.

DISPLAY CONFIGURATION

Primary Monitor

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

J2

40 column standard RGB

On

On

On

On

Off

Pins 1 & 2 closed

80 column standard RGB

Off

On

On

On

Off

Pins 1 & 2 closed

200 line enhanced RGB

On

Off

On

On

Off

Pins 2 & 3 closed

350 line enhanced RGB

Off

Off

On

On

Off

Pins 2 & 3 closed

Note: These settings apply when the EGA card is used with an IBM monochrome display, with monochrome primary.

FACTORY CONFIGURED SETTINGS

Jumper

Setting

J1

Pins 1 & 2 closed