Black Box AC320A Manuel utilisateur

CUSTOMER

SUPPORT

INFORMATION

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OCTOBER 1993

AC320A

VGA to Video—Portable Plus

VGA TO VIDEO-

PORTABLE PLUS

VIDEO

VGA OUT VGA IN

POWER

DC 9V IN

S-VHS

VGA TO VIDEO—PORTABLE PLUS

FEDERAL COMMUNICATIONS COMMISSION

RADIO FREQUENCY INTERFERENCE STATEMENT

This equipment generates, uses, and can radiate radio frequency energy

and if not installed and used properly, that is, in strict accordance with the

manufacturer’s instructions, may cause interference to radio communication.

It has been tested and found to comply with the limits for a Class B

computing device in accordance with the specifications in Subpart J of

Part 15 of FCC rules, which are designed to provide reasonable protection

against such interference when the equipment is operated in a commercial

environment. Operation of this equipment in a residential area is likely to

cause interference, in which case the user at his own expense will be required

to take whatever measures may be necessary to correct the interference.

Changes or modifications not expressly approved by the party responsible

for compliance could void the user’s authority to operate the equipment.

This digital apparatus does not exceed the Class B limits for Radio noise emission from

digital apparatus set out in the Radio Interference Regulation of Industry Canada.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites

applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le

brouillage radioélectrique édicté par Industrie Canada.

TRADEMARKS

MS-DOS®is a registered trademark of Microsoft Corporation.

RCA®is a registered trademark of General Electric Co.

Windows™is a trademark of Microsoft Corporation.

IBM®is a registered trademark of IBM Corporation.

SideKick®is a registered trademark of Inprise Corporation.

All applied for and registered trademarks are the property of their respective owners.

VGA TO VIDEO—PORTABLE PLUS

Contents

Chapter Page

1. Specifications ....................................................................................... 3

2. Introduction ........................................................................................ 4

2.1 Introduction to Video Standards .............................................. 4

2.2 Hotkeys and TSR Programs....................................................... 5

2.3 VGA to Video—Portable Plus ................................................... 5

2.4 The Complete Package.............................................................. 6

3. Installation ........................................................................................... 8

3.1 Hardware Installation ................................................................ 8

3.2 Software Installation .................................................................. 9

3.3 Hotkey Control ..........................................................................11

3.4 Screen Movement ......................................................................11

3.5 Command Functions .................................................................12

3.6 Installation Tips .........................................................................13

4. Troubleshooting..................................................................................14

Appendix: Enhancing Your Presentation with VGA to Video..............15

CHAPTER 1: Specifications

1. Specifications

Outputs —

• Output 1: Pass-through for local

monitor, HD15S

• Output 2: Composite, NTSC,

color; RCA®phone jack, cable

supplied; 1 V P-to-P; Horz

Freq—15.7 KHz;

Vert Freq—60.0 Hz

Display Speed — Real time

Drivers — Windows™3.1

Compatibility — Compatible with

windowing boards (IBM®

M-Motion, etc.)

Connectors — (2) DB15

Power — 9 VDC, 500 mA

Size — 5.5"H x 4"W x 1"D

(14 x 10.2 x 2.5 cm)

Weight — 1.5 lb. (0.7 kg)

System Requirements — PC or

compatible with VGA card,

MS-DOS®3.0 or higher, 640K

memory or larger

Input Frequency — 0.7 V peak to

peak

Resolution — all standard VGA

modes up to 640x480

Inputs —

• Analog RGB signal from

notebook PC

• HD15 pin connector, cable

supplied

• 0.7 V P-to-P

• Horizontal frequency: 31.5 KHz

• Vertical frequency: 70.0 Hz

• Resolution up to 640 x 480,

32,768 colors

VGA TO VIDEO—PORTABLE PLUS

2. Introduction

2.1 Introduction to Video Standards

The VGA to Video—Portable Plus

takes your computer’s VGA video

signals and turns them into standard

television signals.

2.1.1 T

ELEVISION

Most video systems use AV

composite signal or S-Video signal to

carry image data. The standard in

the U.S. is NTSC, named for the

National Television Standard

Committee, the organization that

specified the television standard

used in North America and several

other countries. The NTSC

standard uses 525 lines, 60 frames

per second, and 2 frames per field.

The VGA to Video—Portable Plus

gives you the capability to display

computer-generated text and images

on large television displays without

the hassle and expense of extra

monitors. Even the novice can

record computer generated

presentations or animations to video

tape.

You can use the unit in the home

or office for business or pleasure. At

the office, the VGA to Video—

Portable Plus is great for presenting

graphs, spreadsheets, training

sessions, and business presentations.

At home, the VGA to Video—

Portable Plus is perfect for

displaying computer games on a

large TV screen. The VGA to

Video—Portable Plus is the ultimate

link to video for the DOS or

Windows user.

CHAPTER 2: Introduction

2.1.2 VGA

VGA, the primary display device

supported by PCs is by far the best

display media on the low-end PC

graphics market. It possesses gray-

level capabilities and circuits for

displaying real-world images instead

of artificial computer graphics. The

standard VGA can be operated in

320 x 200 resolution, 256 colors/64

gray scale and 640 x 480 resolution,

256 colors.

VGA Compared to TV:

• Horizontal frequency

- VGA: 31.5 KHz

- TV: 15.7 KHz

• Vertical frequency

- VGA: 70.0 KHz

- TV: 60.0 KHz

• Interlace vs. Non-Interlace

- VGA: Non-Interlace

- TV: Interlace

You can see from the information

above that the image quality of VGA

is superior to TV quality.

2.2 Hotkeys and TSR Programs

Programs such as SideKick®or DOS

graphic execution files are executed

and kept in a PC’s RAM or Random

Access Memory. This means once

they are activated, they are stored in

memory for instant use when

needed. This type of program is

called a TSR (Terminate and Stay

Resident) Program. A TSR allows

you to activate the program with a

hotkey. A hotkey is a sequence of

keystrokes or combination of

keystrokes that when touched

activate the program.

The VGA to TV—Portable Plus

provides a TSR program. Once the

program is installed, you can bring

up the display switch functions by

pressing the predefined hotkey.

2.3 VGA to Video—Portable Plus

The VGA to Video—Portable Plus

works as an interface between the

VGA signals of your PC and the

video signal that your TV accepts.

The VGA to Video—Portable Plus

converts the VGA signal to standard

TV (NTSC) signal. The VGA to

Video—Portable Plus consists of two

parts:

• VGA to Video—Portable Plus

Encoder Box

• VGA to Video—Portable Plus

“flicfree” software

VGA TO VIDEO—PORTABLE PLUS

2.3.1 VGA

IDEO

NIT

The unit is small, lightweight, and

easy to use. It has been specifically

designed to be used primarily with

desktop PCs, but it can also be used

with portable and notebook

computers. You can securely attach

the unit to your VGA card’s 15-pin

output by tightening the screws on

the connector, just as you would

connect your color VGA monitor.

The cable provided connects from

your PC to the “VGA IN” port. The

other cable provided connects to the

“VGA OUT” port and plugs into the

cable coming out from your VGA

monitor. You can connect output to

the TV to the AV connector port or

to the S-Video port.

2.3.2 VGA

IDEO

—P

ORTABLE

LUS

OFTWARE

Once you install the TSR program, it

stays in the system memory until you

turn the PC off. You can use the

software to adjust the position and

resolution of the computer text or

graphic on the TV.

2.4 The Complete Package

Your package should contain the

following items:

1. VGA to Video—Portable Plus

unit

2. Composite Cable

3. S-Video Cable

4. AC Power Adapter

5. VGA Adapter Cable

6. This User’s Manual

7. Flicfree Software Diskette

If any of these items are missing,

contact your dealer.

CHAPTER 2: Introduction

Fig. 2-1. VGA to Video—Portable Plus Complete System Package.

VGA TO VIDEO-

PORTABLE PLUS

VIDEO

VGA OUT VGA IN

POWER

DC 9V IN

S-VHS

MANUAL

VGA TO VIDEO—PORTABLE PLUS

3. Installation

NOTE

Use the S-Video input if your

TV has one. S-Video is a new

standard for video in which

the Luminance and

Chrominance elements of a

video signal are isolated from

each other, resulting in a

clear image with significantly

higher resolution.

5. Connect the AC power adapter

to the VGA to Video—Portable

Plus unit.

6. Turn ON the power of your PC.

7. Turn ON the power of your

TV set. Switch the TV/VIDEO

channel or input selector to

VIDEO.

NOTE

If your TV has only a UHF or

VHF antenna connector, you

will need to convert the

video signal through a VCR

or an RF modulator. Switch

the VCR’s input to LINE-IN

and turn the TV channel to 3

or 4.

3.1 Hardware Installation

Follow these steps to install the VGA

to Video—Portable Plus encoder

box.

1. Turn off the power to your PC.

2. Connect the VGA to Video—

Portable Plus encoder box to the

15-pin port on your PC’s VGA

card with the cable marked item

#5 in Fig. 2-1 and connect to the

“VGA IN” port on the unit.

3. Connect your VGA monitor

cable to the “VGA OUT” port on

the unit.

4. Connect the VGA to Video—

Portable Plus encoder box to

your TV with one of the two

video cables provided.

• Composite output: AV cable

to video input of your TV

• S-Video output: S-Video cable

to video input of your TV

CHAPTER 3: Installation

Fig. 3-1. System Layout.

C:>COPY A:\*.* C:\FLICFREE

<ENTER>

c. Change to the FLICFREE

directory.

C:>CD FLICFREE <ENTER>

d. Type the FLICFREE command.

C:>FLICFREE<ENTER>

You should now see the screen

display for FLICFREE driver on the

TV, as shown next.

AC POWER

SUPPLY

TELEVISION VGA

MONITOR

VGA TO VIDEO—

PORTABLE PLUS

VGA OUT VGA IN

3.2 Software Installation

Backup:

Make a backup copy of the VGA to

Video—Portable Plus software and

store it in a safe place.

Follow these steps to install the

software.

1. Copy your VGA to Video—

Portable Plus “Flicfree” software

to your PC.

a. Make a directory—type

C:>MD FLICFREE <ENTER>

b. Copy all the files to the newly

created directory.

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