Category

Video

Video Types Supported

XVGA

Video Processor

Tseng Labs ET4000 (Exact location is unidentified)

Highest Resolution Supported

1024 x 768

Data Bus Type

16-bit ISA

Memory Type

VRAM

Maximum Onboard Memory

1MB (Exact location of memory is unidentified)

CONNECTIONS

Purpose

Location

Purpose

Location

RCA connector

P1

15-pin analog video port

P4

9-pin analog video port

P2

VGA feature connector

P5

Minin-Din connector

P3

P2 (PIN 9) ASSIGNMENT SELECTION

Setting

J1

C input

Pins 1 & 2 closed

R - Y in

Pins 2 & 3 closed

P2 (PIN 7) ASSIGNMENT SELECTION

Setting

J2

Overlay out

Pins 1 & 2 closed

B - Y in

Pins 2 & 3 closed

INPUT SIGNAL SELECTION

Setting

J3

Y/C input

Pins 1 & 2 closed

Composite input

Pins 2 & 3 closed

INTERRUPT SELECTION

IRQ2

J4

Enabled

Closed

Disabled

Open

VGA POWER SELECTION

Setting

SW1/5

»

Enabled

Off

Disabled

On

I/O BASE ADDRESS SELECTION

Address

SW1/1

SW1/2

SW1/3

SW1/4

»

300h

Off

On

On

On

200h

On

On

On

On

220h

On

On

On

Off

240h

On

On

Off

On

260h

On

On

Off

Off

280h

On

Off

On

On

3C0h

Off

Off

Off

On

3E0h

Off

Off

Off

Off

BIOS SELECTION

Setting

SW1/6

»

Enabled

On

Disabled

Off

BIOS BASE ADDRESS SELECTION

Address

SW1/7

SW1/8

»

C800h

Off

Off

D000h

Off

On

D800h

On

Off

E000h

On

On

TEXT MODE KEY DELAY ADJUSTMENT

Setting

VR4

Increase

Clockwise

Decrease

Counter - clockwise

GRAPHICS MODE >800 X 600 KEY DELAY ADJUSTMENT

Setting

VR5

Increase

Clockwise

Decrease

Counter - clockwise

GRAPHICS MODE £ 800 X 600 KEY DELAY ADJUSTMENT

Setting

VR6

Increase

Clockwise

Decrease

Counter - clockwise