Extron electronic VSC 75 user manual Optimizing the Image, Troubleshooting

Page 11

Installation and Operation, cont’d

VGA Pin

Function

Mac Pin

 

 

 

1

Red video

2

2

Green video

5

3

Blue video

9

4

ID bit

4

5

ID bit

8

6

Red ground

1

7

Green ground

6

8

Blue ground

13

 

 

 

9

Not used

—

10

Composite & vertical sync gnd

11, 14

11

ID bit

7

12

ID bit

10

13

Horizontal sync

15

14

Vertical sync

12

15

ID bit/composite sync

3

 

 

 

Optimizing the Image

After you have installed the scan converter, follow the procedures in this section in sequence. This will help you configure the scan converter for the best settings for your display environment.

Select the output standard

1.

Select the output standard with the PAL Out DIP

 

switch. This switch affects both display outputs (com-

 

posite video and S-video), but not the local monitor.

 

ON — The output is in PAL format.

 

OFF — The output is in NTSC format.

Size the image to fill the screen

1.

Press the Size button on the front panel.

2.

Rotate the vertical and horizontal Centering/Pan/Size

 

rotary controls to adjust the vertical and horizontal

 

size. Observe the picture on screen as you adjust the

controls. The Min/Max LED will light red when the minimum or maximum limit of a control is reached.

The size feature affects both display outputs, but local monitor loop-out is not affected. The size function remains active for 8 seconds after the rotary controls become inactive. The rotary controls then default to the standard centering and pan functions.

3.

Press the Size button again to turn the size feature off.

4.

Center the picture by rotating the horizontal and

 

vertical Centering/Pan/Size rotary controls.

5.

Repeat steps 1 through 4 as needed.

Select the filtering level

1.

Press the flicker filter button to select the filtering

 

level that gives the least amount of flickering. The

 

LEDs next to the flicker button will light to indicate

 

the selected level of filtering.

If the filter is set before the image size is adjusted, you must set the filter again after adjusting the image size.

Troubleshooting

The image should appear properly on the screen(s).

If the image does not appear

1.

Ensure that all devices are plugged in.

2.

Make sure that each device is receiving power.

3.

Check the cabling, wiring and grounding, and make

 

adjustments as needed. Ensure that the rear panel

 

output selection toggle switch and PAL Out DIP

 

switch are set for the formats that match the cable

 

configuration and the requirements of the display/

 

recording devices.

4.

Verify that the 75 Ohm video input termination DIP

 

switch has been set correctly.

5.

To test the system setup and output, press the Test

 

button on the front panel, or substitute a video test

 

generator for the computer input.

6.

Confirm that the input is receiving a signal with a

 

com-patible scan rate (horizontal frequency between

 

24 kHz and 70 kHz, and a vertical frequency of 50 Hz

 

to 120 Hz).

7.

Call Extron’s customer support hotline if needed. Be

 

prepared to discuss the steps you have taken and the

 

equipment involved.

2-10 VSC 75 Installation and Operation

VSC 75 Installation and Operation 2-11

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Contents Video Scan Converter User’s ManualFCC Class a Notice PrecautionsExtron’s Warranty Table of Contents VSC Table of Contents, cont’dOne IntroductionAbout the VSC FeaturesIntroduction Introduction, cont’d Installation and OperationTwo Mounting the VSC Installation and OperationInstallation Overview Tabletop/desktop placement+ 6 Executive mode release Freeze + Size Press Installation and Operation, cont’d Front Panel FeaturesCabling Installation and Operation, cont’dRear Panel Features PC Computer Mac Computer Mac-HV/VGA cable connector pin assignmentsOptimizing the Image TroubleshootingSerial Communication ThreeRS-232 Programmer’s Guide Serial CommunicationCommand/response table Remote Control, cont’dUsing the software Remote Control, cont’d Control Software for WindowsInstalling the software AAppendix Specifications Part Numbers and AccessoriesSpecifications Included Parts Accessories and Part NumbersAccessories

VSC 75 specifications

The Extron VSC 75 is a versatile and powerful video scaling solution designed for a variety of professional AV applications. This device is particularly suited for environments such as classrooms, conference rooms, and auditoriums, where high-quality video is crucial for effective communication and presentations. The VSC 75 offers an impressive combination of features and technologies that enhance its functionality and ease of use.

One of the main features of the VSC 75 is its advanced video scaling capability. The device can accept a wide range of input resolutions, including standard and high-definition video sources, and transform them to fit the desired output format. This makes it a flexible solution for integrating various AV sources into a single system. The VSC 75 supports video formats up to 1080p, ensuring crisp and clear image quality across all applications.

The Extron VSC 75 utilizes state-of-the-art processing technologies to deliver high-performance video scaling. It features a 10-bit video processing engine that ensures smooth and accurate scaling, reducing artifacts during the transition from one resolution to another. This level of processing is particularly important for professional presentations, where visual fidelity is paramount. Additionally, the device incorporates sophisticated algorithms for noise reduction and image enhancement, which improve the overall picture quality.

Another key aspect of the VSC 75 is its user-friendly interface. The device includes an intuitive front panel with a variety of buttons and indicators that facilitate easy operation. Furthermore, it supports multiple control options, including RS-232 and contact closure, allowing for seamless integration into existing AV systems. This flexibility makes it a popular choice for system integrators.

In terms of connectivity, the Extron VSC 75 offers a comprehensive range of inputs and outputs. It features HDMI, VGA, and composite video inputs, as well as a loop-through output for connecting additional displays. This range of connectivity options ensures compatibility with most AV equipment, making the VSC 75 a highly adaptable solution.

In conclusion, the Extron VSC 75 is a powerful video scaler that combines advanced scaling technologies with a user-friendly design. Its ability to accept multiple input formats, support for high-definition resolutions, and various connectivity options make it an excellent choice for enhancing video presentations in any professional environment.
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