VSC 900/900D Video Scan Converter 68-635-01 Rev.
Precautions Safety Instructions • English This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product's enclosure that may present a risk of electric shock. Warning Power sources • This equipment should be operated only from the power source indicated on the product.
Quick Start — VSC 900/900D Installation Step 5 Step 1 Plug the scan converter, and input and output devices into a grounded AC source, and turn on the input and output devices. Turn off power to the scan converter and any input and output devices, and remove power cords from them. Step 6 Step 2 Use the LCD menu screens (see the next page) or RS-232 programming to configure the VSC. See chapter two for installation and operation procedures, and see chapter three for programming information.
Quick Start — VSC 900/900D, cont’d VSC 900/900D Main Menu System Main menu Power on 2 sec. Extron VSC 900 Scan Converter 2 sec. Horiz. 56.19 KHz Vert. 49.95 Hz MENU MENU Press NEXT to Auto Image Filters Advanced Exit Menu MENU MENU MENU NEXT Output Config Size/Zoom Genlock MENU MENU MENU See chapter two for detailed explanations of the menu system. Image Optimization The following steps should be folllowed in order to optimize image display.
Chapter 1 • Introduction ...................................................................................................... 1-1 About this Manual ............................................................................................................ 1-2 About the VSC 900/900D ................................................................................................ 1-2 Features ....................................................................................................................
Table of Contents, cont’d Presets ................................................................................................................................... 2-19 Troubleshooting ............................................................................................................... 2-19 VSC Infrared Remote Control ................................................................................... 2-21 Chapter 3 • Serial Communication .........................................................
VSC 900/900D 1 Chapter One Introduction About this Manual About the VSC 900/900D Features
Introduction About this Manual This manual discusses how to install, configure, and operate the Extron VSC 900/900D video scan converter and how to operate the VSC infrared remote control (part #70-206-01). Throughout this manual the terms “VSC”, “video scan converter”, and “scan converter” are used interchangeably to refer to the same product.
VSC 900/900D 2 Chapter Two Installation and Operation Application Example Mounting the VSC Rear Panel Connectors and Cabling Genlock and Vertical Interval Switching Front Panel Features Menus, Configuration, and Adjustments Additional Functions Presets Troubleshooting VSC Infrared Remote Control
Installation and Operation Application Example The illustration below is one example of setting up the VSC 900D. The VSC 900 setup does not include an SDI output. Extron VSC Remote Extron BBG 6 A Infrared Remote SDI Video Editor ST UR KB AC 5 BL D AU DIO G ST AN BB KBUR R AC TO BL NERA Z GE 1 KH DIO R AU 12V MA .
Rack mounting 1. If feet were installed on the bottom of the VSC, remove them. 2. Attach the provided rack mounting brackets (70-077-03) to the VSC 900/900D with machine screws, as shown below. 3. Fasten the VSC to the rack using the supplied machine screws.
Installation and Operation Rear Panel Connectors and Cabling 4 2 100-240V 0.3A 1 R /R-Y I N P U T S R /R-Y 1 2 B /B-Y B /B-Y G /Y H /HV H /HV V O U T P U T S V IN R/R-Y G/Y B/B-Y H/H-Y V G E N L O C K VIDEO S-VIDEO OUT RS-232 /422 RGB/R-Y, Y, B-Y RGB 50/60 Hz G /Y 6 5 3 7a 9 8 10 Figure 2-2 — VSC 900 rear panel connectors 4 2 100-240V 0.
R /R-Y B /B-Y G /Y H /HV V R /R-Y V R /R-Y G /Y B /B-Y G /Y H /HV H /HV V RGBS output RGBHV output R /R-Y B /B-Y RGsB output G /Y B /B-Y H /HV V Component video output (R-Y, Y, B-Y) 7a S-video output connector — Connect an S-video output device to this female 4-pin mini DIN connector. 7b SDI (serial digital interface) output connector — Connect an output device to this SDI component output female BNC.
Installation and Operation, cont’d Genlock and Vertical Interval Switching Vertical interval switching provides for clean switching between signals from several devices during the vertical blanking period of each signal. Vertical interval switching between the VSC and another source with an external switcher can be achieved by applying a composite sync signal at the Genlock In connector. The sync signal can also be passed to another device via the Genlock Out connector.
5. Connect scope probe B to the VSC’s composite video output connector. 6. Using the instructions for the scope you are using, set the scope to view the signal’s horizontal phases. Adjust the horizontal phase by rotating the horizontal Adjust ( ) knob (see the “Genlock Menu” section in this chapter). Adjust the horizontal phase until there is no (0°) difference between the composite video output’s horizontal sync phase and the genlock signal’s horizontal phase.
Installation and Operation, cont’d With this method there is no way to know if the signals are 180º out of phase. A delayed sweep on a time-based scope would allow a more accurate display of the input and output signal phase relationships. A vectorscope is more accurate than a waveform monitor. The following diagram shows an example of a vectorscope display when the horizontal phase is adjusted to align it with the burst (genlock) vector.
Front Panel Features CENTER/PAN INPUT PRESETS IR GENLOCK 1 1 2 MENU 2 3 4 NEXT 5 6 7 8 FREEZE/ RESET VSC 900 COMPUTER TO VIDEO SCAN CONVERTER 1 2 3 4 5 6 7 8 9 10 11 Figure 2-7 — VSC 900/900D front panel features 1 Infrared remote sensor — This sensor is used to receive infrared (IR) signals from the IR remote control. The IR remote control must be pointed directly at this sensor for best results. See the IR Remote Control section in this chapter.
Installation and Operation, cont’d Menus, Configuration, and Adjustments VSC configuration and adjustments can be performed by using the Windowsbased control program (see chapter 3 for details) or by using the front panel controls and the menus that are displayed on the VSC’s LCD screen. Moving through menus by using front panel controls Menu button — Press the Menu button to activate menus and to scroll to the main menus.
Power on Extron VSC 900 Scan Converter 2 sec. 2 sec. Horiz. 56.19 KHz Vert. 49.95 Hz MENU Press NEXT to Auto Image MENU Output Config MENU Filters MENU Size/Zoom MENU Advanced MENU Genlock MENU NEXT Exit Menu MENU Figure 2-10 — Main menus for the VSC 900/900D Auto Imaging menu (Auto Image) The following flowchart illustrates the auto imaging feature. Pressing the Next button will display the submenu and automatically size and center the displayed image to fill the output screen.
Installation and Operation, cont’d If you press the Menu button while a submenu is active, the next main menu will become active. For example, the menu will change from the Auto Imaging submenu to the Output Configuration main menu. To return to the default menu cycle, let the VSC time-out for 10 seconds, or press the Menu button until the Exit Menu menu appears, then press the Next button.
Th signal pedestal is an offset that separates the active video from the blanking level. When the pedestal is set to Off, black and blanking level are the same because there is no longer an offset between blanking level and active video. Set PAL pedestal submenu (Setup PAL) The pedestal for PAL video format may be turned on or off. See the previous note. Rotate the horizontal Adjust knob ( ) or vertical Adjust knob ( ) to turn the pedestal on or off.
Installation and Operation, cont’d Size and Zoom menu (Size/Zoom) The following flowchart provides an overview of the Size/Zoom menu.
Test pattern submenu Use the Cursor buttons to select a test pattern. The choices are: Off (no test pattern selected), Color Bars, 32x24 Crosshatch, 4x4 Crosshatch, or Gray Scale. The default test pattern is set to Off. Color Bars 32x24 Cross Hatch Grayscale 4x4 Crosshatch Input type submenu Use the Cursor buttons to select either RGB or YUV as the input type. The default is RGB. Input chroma attenuation submenu (Atten.
Installation and Operation, cont’d Extron VSC 900 Scan Converter Genlock 2 sec. 2 sec. Horiz. 56.19 KHz Vert. 49.95 Hz MENU Exit Menu NEXT Figure 2-17 — Exit menu Additional Functions In addition to the main menu system, there are several other functions that are featured by the VSC 900/900D: image centering, image freezing, unit reset to factory defaults, input reset to return the input to the factory default settings, and executive mode to disable the front panel controls.
2 sec. Extron VSC 900 Scan Converter 2 sec. Horiz. 56.19 KHz Vert. 49.95 Hz FREEZE/ RESET The Freeze/Reset button may be pressed at any time and from any menu to freeze the image. Press again to unfreeze the image.
Installation and Operation, cont’d Extron VSC 900 Scan Converter 2 sec. Horiz. 56.19 KHz Vert. 49.95 Hz 2 sec. FREEZE/ RESET MENU = Factory NEXT = Input # The input may be reset to it's factory default values. To reset the input, press and hold the Freeze/Reset button for two seconds (the LED will begin to blink). Immediately press the Next button to reset the input.
Presets The eight Presets buttons will allow sizing and centering information for an input to be stored into memory. This preset information can then be recalled at any time. Up to eight presets can be stored and recalled.
Installation and Operation, cont’d If the image does not display correctly Symptoms Solutions The picture is shifted off the screen edges. Adjust the centering and sizing controls ( , ). The picture appears without color. Adjust the hue/ tint/ color controls on display device. Make sure that the video display/ recording equipment is using the same standard (NTSC or PAL) as the VSC. In a genlocked system, displayed color is incorrect. The color subcarrier phase (Sub) might require readjustment.
VSC Infrared Remote Control The VSC IR remote control, shown at right, replicates all of the front panel controls except the Menu, Next, and Cursor buttons. If executive mode has been enabled on the VSC, input selection and adjustments can still be made from the remote control or the Windows-based control program (via an RS-232 device) to configure the video scan converter. See chapter three, “Serial Communication”, for details. The topmost part of the remote control features a Freeze On/Off button.
Installation and Operation, cont’d 2-22 VSC 900/900D • Installation and Operation
VSC 900/900D 3 Chapter Three Serial Communication RS-232 Programmer’s Guide Control Software for Windows Firmware Upgrade Through the Extron Website
Serial Communication The VSC 900/900D can be remotely controlled via a host computer or other device (such as a control system) attached to the rear panel RS-232 connector. The control device (host) can use either the Extron Simple Instruction Set (SIS) commands or the graphical control program for Windows. The scan converter uses a protocol of 9600 baud, 1 stop bit, no parity, and no flow control.
Using the command/response tables The command/response tables on the next page list valid command ASCII codes, the scan converter’s responses to the host, and a description of the command’s function or the results of executing the command. The ASCII to HEX conversion table below is for use with the command/response tables. ASCII to HEX Conversion Table • The command/response tables use symbols (defined below) to represent variables.
Serial Communication, cont’d Command/response table for SIS commands Command ASCII Command (host to scan converter) Response Additional description (scan converter to host) Input selection Select input Example: X5 ! Chn X5 Select input source X5 (1 or 2). 1! Chn1 Example: select input 1. X4 \ Typ Set current active input to video type X4 . 0 = RGB, 1 = YUV. 0\ Typ 0 Example: set input type to RGB. \ X4 Show active input’s video type. \ 1 Example: input type is YUV.
Command/response table for SIS commands (continued) Command ASCII Command Response (host to scan converter) Additional description (scan converter to host) Flicker filter Set a specific filter value X13 Dvz X13 Set the vertical detail level. Increment up +d d Dvz X13 Increase vertical detail. Increment down -d Dvz X13 Decrease vertical detail. View the filter level d X13 Show the vertical detail level.
Serial Communication, cont’d The syntax for setting a special function is X! * _ # where _ is the function number and X! is the value. To view a function’s setting, use _# where _ is the function number. In the following table the values of the X! variable are different for each command/function. These values are given in the rightmost column.
Control Software for Windows The included Extron VSC 900/900D Control Program for Windows offers another way to control the VSC via RS-232 connection in addition to the Simple Instruction Set commands. The control program’s graphical interface includes the same functions as those on the scan converter’s front panel and some additional features that are only available through the Windows-based software. The control software is compatible with Windows 95/98, Windows NT, and Windows 2000.
Serial Communication, cont’d 3. Click on the Config button to configure the inputs from the I/O Configuration Window. Using the help program For information on program features, press the F1 computer key, or click on the Help menu from within the VSC 900 Control Program, or double-click on the VSC 900 Help icon in the Extron Electronics group or folder. For explanations of buttons or functions, click on the tabs in the help screen to reach the desired screen.
Firmware Upgrade Through the Extron Website The VSC 900/900D’s firmware may be upgraded by going to the Extron website, downloading the latest firmware to the PC, then uploading and installing the new firmware from the PC to the VSC 900/900D via the scan converter’s RS-232 port. The whole process takes only a few minutes and is very simple. Downloading the latest firmware to the PC Go to the Extron website (www.extron.com), select the product category, and download the latest firmware to your PC.
Serial Communication, cont’d 3-10 VSC 900/900D • Serial Communication
VSC 900/900D A Appendix Appendix Specifications Included Parts Accessories Firmware Upgrade Chip Installation Serial Digital Interface (SDI) Output Card Installation
Appendix Specifications Video input Number/signal type ................... 1 RGBHV, RGBS, RGsB, component video with 1 buffered loop-through 1 RGBHV, RGBS, RGsB with 1 buffered loop-through Connectors ................................... 2 x 5 BNC female (5 BNCs for RGB/component video input, 5 BNCs for RGB/component video loop-through) (1) 15-pin HD female for RGB input, (1) 15-pin HD female for buffered RGB loop-through (RGB) Nominal level ............................... 0.
Control/remote — scan converter Serial control port ........................ Baud rate and protocol ............... Serial control pin configurations IR controller module ................... Program control .......................... RS-232 and RS-422, 9-pin female D connector 9600 baud, 8 data bits, 1 stop bit, no parity 2 = TX, 3 = RX, 5 = GND, 9 = hard-wired IR VSC Remote Extron’s control/configuration program for Windows® Extron’s Simple Instruction Set (SIS™) General Power ...........................
Appendix, cont’d Included parts These items are included in each order for a VSC 900/900D: Included parts or Part number VSC 900 (1) 60-478-01 VSC 900D (1) 60-478-02 Rack mounting kit 70-077-03 IEC power cord Tweeker (small screwdriver) VSC 900/900D User’s Manual Accessories These items can be ordered separately: Accessories A-4 Part number SDI Video Output card 70-065-02 VSC IR remote control 70-206-01 VSC 900/900D • Appendix
Firmware Upgrade Chip Installation In some cases the VSC 900/900D’s firmware may require replacement with an updated version. There is one user-replaceable firmware chip: U1. The number is printed on the circuit board. We recommend that you send the unit to Extron for service and updates. Changes to firmware must be performed by authorized service personnel only. Follow these steps to replace firmware in the VSC. Disconnect the AC power cord from the VSC to remove power from the unit.
Appendix, cont’d 10 0-2 40 V 0.3 A 50 /60 Hz I N P U T S 1 R /R-Y RG B R /R-Y G /Y U1 2 B /B-Y G /Y RG B/R -Y, B /B-Y Y, B-Y H /HV V H /HV V O U T P U T S R/R -Y G/Y B/B -Y H/H -Y V D1 S-V IDE O VID EO G E N L O C K A-6 IN OU T RS -2 /42232 5. Removal of the U1 IC chip requires a PLCC IC puller tool. To remove the chip, align the hooks of a PLCC IC puller tool with the slots located in opposite ends of the U1 firmware chip. 6.
Serial Digital Interface (SDI) Output Card Installation The optional SDI output card may be installed in the VSC if it does not already have an output for a serial digital interface signal. We recommend that you send the unit in to Extron for service and updates. Changes to electronic components must be performed by authorized service personnel only. Follow these steps to install an SDI card in the scan converter. 1. Disconnect the AC power cord from the VSC to remove power from the unit.
Appendix, cont’d 20-pin socket on back of SDI card 20-pin connector on main board A-8 7. Insert the card’s installation screw through the SDI card’s mounting hole and gently tighten it into the standoff. 8. Install the SDI connector’s hex nut and keep the SDI card from twisting as the nut is tightened. 9. Replace the top cover on the VSC, and fasten it with the screws that were removed in step 3. 10.
FCC Class A Notice Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
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