STB SYSTEMS, INC.

CHANNEL 4G

Category

Video

Video Types Supported

XVGA

Video Processor

Unidentified

Highest Resolution Supported

1280 x 1024

Data Bus Type

16-bit ISA

Memory Type

DRAM

Maximum Onboard Memory

4MB (1MB of on-board DRAM per port)

CONNECTIONS

Purpose

Location

Purpose

Location

VGA feature connector

CN1

Coax connector (Port 1)

P2

VGA feature connector

CN2

Coax connector (Port 2)

P3

VGA feature connector

CN3

Coax connector (Port 3)

P4

VGA feature connector

CN4

Coax connector (Port 4)

P5

VGA connector

P1

Refresh signal synchronization connector

P6

COLOR TYPE SELECTION

Type

J8

J9

J10

J11

Color

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Mono

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

NTSC/PAL OUTPUT CONFIGURATION

Setting

J13

J14

NTSC

Pins 1 & 2 closed

Pins 1 & 2 closed

PAL

Pins 2 & 3 closed

Pins 2 & 3 closed

CRYSTAL FREQUENCY SELECTION

Setting

J12

Master

Pins 1 & 2 closed

Slave

Pins 2 & 3 closed

BOARD IDENTIFICATION SELECTION

Board

SW1/1

SW1/2

SW1/3

0

Off

Off

Off

1

Off

Off

On

2

Off

On

Off

3

Off

On

On

4

On

Off

Off

5

On

Off

On

6

On

On

Off

7

On

On

On

FACTORY CONFIGURED - DO NOT ALTER

Switch

Position

SW1/4

Off