VSC 200/200D VSC 300/300D Video Scan Converters 68-396-01 Printed in the USA
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 200/200D/300/300D Installation Step 1 Install feet on the bottom of the scan converter (1A), or mount the scan converter in a rack (1B). Step 2 CENTERING/PAN Turn off power to the input and output devices, and remove their power cords. MENU FREEZE/ RESET COMPUTE R TO VIDEO 1A Step 3 Rubber Feet Bottom Side (4 Plcs) Attach the input and output devices to the scan converter: Input cabling (3A): 1.
Quick Start — VSC 200/200D/300/300D, cont’d Using the LCD Screen The scan converter’s LCD screen informs you of status changes, allows you to configure the scan converter, and provides access to menus that allow you to adjust the image. The screen normally cycles through two default screens continuously. The first displays the scan converter model, and the second displays the output frequencies.
Table of Contents Chapter 1 • Introduction ....................................................................................................... 1-1 Features ................................................................................................................................... 1-2 Chapter 2 • Installation .......................................................................................................... 2-1 Front and Rear Panels .........................................................
Table of Contents, cont’d Chapter 5 • Troubleshooting .............................................................................................. 5-1 If the image does not appear ........................................................................................... 5-2 If the image is not displayed correctly .............................................................................. 5-2 If the scan converter does not respond to controls .........................................................
VSC 200/200D/300/300D 1 Chapter One Introduction Features
Introduction, cont’d Introduction This manual contains installation, configuration, and operation information for Extron’s VSC 200, VSC 200D, VSC 300, and VSC 300D scan converters. The VSC 200 and VSC 300 down-convert computer video to NTSC or PAL format, which can be recorded, used for videoconferencing, or viewed on an NTSC or PAL monitor or other display device. The VSC 300 also outputs VGA/SVGA for display on a PC or Mac monitor. An optional digital module adds a digital video output.
Genlock — Allows the integration of the scan converted images into a professional broadcast environment. Genlocking provides for seamless vertical interval switching of converted high resolution sources with other video sources. Digital video output (optional) — Available as standard on the VSC 200D and VSC 300D, or can be added to the VSC 200 and VSC 300 via the VSC 200/300 D1 Module.
Introduction, cont’d 1-4 VSC 200/200D/300/300D Introduction
VSC 200/200D/300/300D 2 Chapter Two Installation Front and Rear Panels Installation Overview Cable Connector Pin Assignments
Installation, cont’d Installation Front and Rear Panels Front panel features 9 CENTERING/PAN GENLOCK MENU FREEZE/ RESET NEXT VSC 200 COMPUTER TO VIDEO SCAN CONVERTER 1 2 3 4 5 6 7 10 8 Figure 1 — VSC 200/200D front panel 9 CENTERING/PAN GENLOCK MENU FREEZE/ RESET NEXT VSC 300 COMPUTER TO VIDEO SCAN CONVERTER 1 2 3 4 5 6 7 8 10 Figure 2 — VSC 300/300D front panel 2-2 1 Power indicator LED — Lights to indicate that the scan converter is receiving power.
Rear panel features 19 INPUT/LOOP OUT OUTPUTS D1 HV 100-240 50/60 Hz 0.5A 1 MAC VGA 2 3 VIDEO 4 S-VIDEO 5 9 7 R/R-Y G/Y B/B-Y H/HV 10 11 12 13 8 SOG OUT RS-232 REMOTE V 16 15 IN G E N L O C K H 20 21 14 Figure 3 — VSC 200/200D rear panel 19 OUTPUTS INPUT/LOOP OUT D1 HV 100-240 50/60 Hz 0.
Installation, cont’d 14 RGB/R-Y, Y, B-Y LED — Lights to indicate that the RGB or component video output is active. Component video (R-Y, Y, B-Y) is referred to as YUV in the front panel LCD menus. 15 Sync selection switch — Allows you to choose how the sync output signals for RGsB/RGBS/RGBHV are routed: H — If the switch is set to H, the scan converter outputs separate horizontal and vertical sync signals; only horizontal sync is routed through the H/HV output connector.
Mounting the scan converter The scan converter ships with four uninstalled rubber feet. If you are going to rack mount the unit, do so before cabling the unit, and do not install the rubber feet. If you are not rack mounting the scan converter, skip to “Tabletop/desktop placement” on page 2-6. Rack mounting To rack mount the scan converter, do the following: 1. Attach the mounting brackets (supplied with the scan converter) on either side of the scan converter, as shown in figure 5.
Installation, cont’d Tabletop/desktop placement For tabletop or desktop placement, install the self-adhesive rubber feet/pads (provided) onto the four corners of the bottom of the enclosure. Cabling The scan converter connects to a source computer, such as a Macintosh or VGA-type personal computer or a Sun workstation, and to an output device, such as a video recorder, videoconferencing system, CRT monitor, or LCD projector. Figure 10 shows the entire system as it looks after it is hooked up. 1.
If a local monitor will not be used, set the 75 ohm/Hi Z switch to 75 Ω. If no input signal is present, by default the output display is blank. However, using RS-232 commands, you can set the scan converter to display NTSC/PAL composite video color bars when no input signal is present. See the command/response table on page 4-4 for details. 3. Connect a composite video display or recording device to the composite video output connector.
Installation, cont’d 6. Connect the coax cable from the genlock device (or the genlock output of another device that shares the genlock signal) to the Genlock In connector. If no genlock device will be used, do not attach cables to these connectors. If another device in the system will use genlock, connect the device to the Genlock Out connector (figure 9). Otherwise, attach a termination adapter to the Genlock Out connector.
Cable Connector Pin Assignments Mac-HV/VGA cable Figure 11 shows the pin locations on the 15-pin connectors at opposite ends of the Mac-HV/VGA cable that is used for connecting a computer to the scan converter. HD15 Connector Male 6 1 5 11 15 DB15 Connector Male 10 1 9 8 15 Figure 11 — VGA (HD15) and Mac (DB15) connector pin locations The table below lists signals and their pin assignments for the VGA (15-pin HD) and Mac (15-pin D) connectors of this cable.
Installation, cont’d 13W3 Pin Function VGA Pin A1 Red video Gnd Red ground A2 Green video Gnd Green ground A3 Blue video Gnd Blue ground 1 ID bit 2 Ground 3 ID bit 4 ID bit ground 5 Composite sync 6 ID bit 7 ID bit 8 ID bit 9 ID bit 10 Composite sync ground * The ground pins are shorted together, then connected to the shell.
VSC 200/200D/300/300D 3 Chapter Three Operation Front Panel Operation Preset Memory Optimizing the Image Setting Up Genlock and Vertical Interval Switching
Operation, cont’d Operation Front Panel Operation The front panel includes an LCD screen that displays the current status of the scan converter and the scan rate of the current video input signal. You can also use controls on the front panel to configure the scan converter and control the image display. Diagrams of the front panels are shown on page 2-2. Default screens By default, the LCD toggles between two screens every four seconds.
Zoom/size/pan controls menu Zoom — Changes the magnification of the image. Press the Up cursor button to zoom in, or press the Down button to zoom out. Size — Increases or decreases the vertical and horizontal dimensions of the displayed image. Press the Up cursor button to increase the vertical size of the image, or press the Down button to decrease the vertical size. Press the Left cursor button to decrease the horizontal size of the image, or press the Right button to increase the horizontal size.
Operation, cont’d Encoder filter — Applies one of the encoder filters to improve the overall image sharpness. Press the Left or Right cursor buttons to move through the filters: • STD • KIL3.58 • HI Phase adjust — Adjusts the signal’s horizontal phase (the phasing between the horizontal sync pulses of the video output and the genlock sync pulses) and subcarrier phase (the phasing between the color burst signal of the video output and the genlock color burst signal).
Preset Memory The scan converter preset memory contains 130 locations that store scan rates and associated size, zoom, pan, centering, and filter controls. The 30 user presets can be changed or erased. The remaining locations are factory-loaded, permanent presets that cannot be changed or erased. When a video input is connected, the scan converter automatically scans the user presets and then the factory presets, looking for a match to the input scan rate.
Operation, cont’d 3. Select the filters: a. Press and release the Menu button until the filter controls menu appears. b. Press the Next button. c. Press the Up or Down cursor buttons to select the horizontal filter that provides the most improvement to the image detail. You can use an alternating pixel pattern to perform this adjustment. d. Press the Next button. e.
If the genlock connectors are used only for vertical interval switching, no horizontal or subcarrier phase adjustments are required, and the genlock LED does not light.
Operation, cont’d 6. Using the instructions for the scope you are using, set the scope to view the signals’ horizontal phases. From the phase adjust screen of the configuration controls menu, adjust the scan converter ’s horizontal phase control until there is no (0º) difference between the composite video output’s horizontal sync phase and the genlock signal’s horizontal phase. See “Oscilloscope displays” on page 3-8, and “Configuration controls menu” on page 3-3. 7.
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.
Operation, cont’d A vectorscope is more accurate than a waveform monitor. Figure 23 shows an example of a vectorscope display when the horizontal phase is adjusted to align it with the burst (genlock) vector. Adjust the horizontal phase until the difference 340 350 0 10 20 30 330 A1+40 40 320 50 310 60 300 A2 70 290 A3 280 80 270 90 260 B1 100 250 110 240 B2 120 230 -40 130 220 140 210 B3 150 200 190 180 170 160 between the two vectors is 0º.
VSC 200/200D/300/300D 4 Chapter Four Serial Communication RS-232 Programmer’s Guide Control Software for Windows
Serial Communication, cont’d Serial Communication The scan converter’s RS-232 connector can be connected to the serial port output of a host device such as a computer or control system. This connection makes software control of the scan converter possible. Figure 25 shows a scan converter RS-232 connection to a host serial port connector. OU OU IN PU T/L OO P OU TP UT S A VG OU T T RS-232 Control Cable T A VG C MA 50 10 0-2 /60 Hz 0.
VSC-initiated messages When a local event such as a front panel operation occurs, the scan converter responds by sending a message to the host. The VSC-initiated messages are listed below (underlined). (C) Copyright 1998-1999, Extron Electronics, VSC 200/300, Vx.xx The copyright message is initiated by the scan converter when it is first powered on. Vx.xx is the firmware version number.
Serial Communication, cont’d Command/response table ASCII to HEX Conversion Table Space Symbol Definitions: = CR/LF, • = space X1 = Horizontal filtering level VSC 200: 1–4 VSC 300: 1–8 X2 = Vertical filtering level VSC 200: 0–4 VSC 300: 0–9 X3 = Input 1 = S-video 2 = RGB 3 = Component X4 =Output 1 = NTSC 2 = PAL 3–8 Scaled output resolutions (VSC 300 only) 3 = 640x480 4 = 800x600 X5 = 1 = On, 0 = Off 5 = 832x624 X6 = xxx.
COMMAND ASCII RESPONSE DESCRIPTION Executive Mode Enable Disable X x Exe1 ExeØ Set executive mode to On Set executive mode to Off Set Output Mode X3 \ Typ X3 Set video output type, (S-video, RGB or component) Set Output Standard X4 # Fnc X4 Set video output standard (NTSC or PAL) Color Bars Disable B Blk1 Enable b BlkØ Disable display of NTSC/PAL composite video color bars when no signal is present Enable display of NTSC/PAL composite video color bars when no signal is present Query So
Serial Communication, cont’d Figure 26 — VSC and DDS Control Program window 3. Using normal Windows controls, you can perform many of the same adjustments as from the front panel. For information about program features, you can access the help program in any of the following ways: • From the Extron Electronics program folder or group, double-click on the VSC + DDS Help icon (shown at left). • From within the VSC and DDS Control Program, click on the Help menu on the main screen.
VSC 200/200D/300/300D 5 Chapter Five Troubleshooting
Troubleshooting, cont’d Troubleshooting The image should be displayed properly on the screen. If the image does not appear 1. Ensure that all devices are plugged in. 2. Make sure that each device is receiving power. If the scan converter does not power on, and the AC power source is functioning correctly, the AC fuse may be blown. See “Replacing the AC fuse” on page B-4. 3. Check the cabling, wiring, and grounding, and make adjustments as needed.
If the scan converter does not respond to controls Symptoms Solutions The picture does not move on screen when the horizontal and vertical centering controls are rotated, and the filtering settings do not change when the filtering controls are pressed. The scan converter may be set for Executive mode. There is no response to commands from the RS-232 controller.
Troubleshooting, cont’d 5-4 VSC 200/200D/300/300D Troubleshooting
VSC 200/200D/300/300D A Appendix A Specifications
Specifications, cont’d Specifications VSC 200/200D Video input Number/signal type ................... 1 VGA, 1 Mac RGBHV, RGBS, and RGsB Connectors .................................... VGA ........... 1 15-pin HD female + adapter cables and Mac ............ 1 15-pin D female Minimum/maximum levels ...... Analog ....... 0V to 2.0V p-p with no offset at unity gain Impedance .................................... 75 ohms or High Z (switchable) Horizontal frequency ..................
Serial control pin configurations 2 = TX, 3 = RX, 5 = GND Program control ........................... Extron’s Simple Instruction Set™ – SIS™ Extron’s control program for Windows® General Power ............................................. 100VAC to 240VAC, 50/60 Hz, 30 watts, internal, auto-switchable Temperature/humidity .............. Storage -40° to +158°F (-40° to +70°C) / 10% to 90%, non-condensing Operating +32° to +122°F (0° to +50°C) / 10% to 90%, non-condensing Rack mount ........................
Specifications, cont’d Video output Number/signal type ................... 1 RGBHV/RGBS/RGsB or component video, or 1 RGB scaled VGA, or 1 digital component video (CCIR 601/ITU-R BT.601) (VSC 300D only), or 1 S-video, or 1 NTSC/PAL composite video Connectors .................................... 5 BNC female .......................... RGBHV/RGBS/RGsB (including scaled VGA) or component video 1 BNC female .......................... digital component video — VSC 300D only 1 4-pin mini-DIN female .......
VSC 200/200D/300/300D B Appendix B Reference Information Upgrades and Repairs Part Numbers
Reference Information, cont’d Reference Information Upgrades and Repairs You can perform the following upgrades and repairs to the scan converter: • Installing the VSC 200/300 D1 Module (VSC 200/300 only; see below). • Replacing the AC fuse (see page B-4). • Installing a firmware update (see page B-5). Before completing any of these procedures, follow the instructions in “Internal access”, below. Internal access Upgrades and fuse replacement require access to the internal areas of the scan converter.
2 IO N VO LT AG E CA UT HI GH 3 1 J16 Figure 28 — Installing the Digital Module upgrade kit 3. Remove the nut from the circuit card BNC connector and set it aside. Insert the D-1 circuit card BNC connector through the hole that was created in the rear panel in step 2. 4. Carefully align the D1 circuit card 20-pin female connector with the J16 pins on the VSC 200/300 motherboard (see exploded view 2 in figure 28). With the pins aligned, press down gently on the D-1 circuit card.
Reference Information, cont’d 10. If the scan converter is rack mounted, remove the power cable from the scan converter, and reattach the rack mount brackets. Reattach the scan converter to the rack, and reconnect the power cord and input and output cables. Replacing the AC fuse If the scan converter does not power on, and the AC power source is functioning correctly, the AC fuse may be blown. The fuse is located on the internal power supply. Replace the fuse only with a 5 x 20 mm, 0.
Installing a firmware update To install a firmware update, you may need to replace IC (integrated circuit) U41, U69, or U70, or any combination of these. Replacing these ICs may result in loss of presets and other settings. 1. Remove the cover of the scan converter. See “Internal access” on page B-2. Make sure you are electrically grounded before touching IC chips. Electrostatic discharge (ESD) can damage IC chips, even if you cannot feel, see, or hear the discharge. 2.
Reference Information, cont’d 5. Reinstall the cover of the scan converter. 6. If rack mount brackets were removed earlier, reinstall them. 7. Attach the power cord to the scan converter and to the AC power source. Make sure the scan converter is working correctly. 8. If the scan converter is rack mounted, remove the power cable from the scan converter, and reattach the rack mount brackets. Reattach the scan converter to the rack, and reconnect the power cord and input and output cables.
BNC cables Extron SHR BNC cables are super high resolution BNC cables. Extron recommends that when using signals with a scanning frequency of 15–125 kHz and running distances of 100 feet or more, high resolution BNC cables should be used to achieve maximum performance. Bulk cable Extron Part SHR bulk cable Bulk SHR-1, 500’ Bulk SHR-1, 1000’ Bulk SHR-4, 500’ Bulk SHR-5, 500’ BNC SHR crimp connectors, qty.
Reference Information, cont’d BNC-5 HR cable BNC-5-25’HR (25 feet/7.5 meters) BNC-5-50’HR (50 feet/15.0 meters) BNC-5-75’HR (75 feet/23.0 meters) BNC-5-100’HR (100 feet/30.0 meters) BNC-5-150’HR (150 feet/45.0 meters) BNC-5-200’HR (200 feet/60.0 meters) BNC-5-250’HR (250 feet/75.0 meters) BNC-5-300’HR (300 feet/90.0 meters) 26-260-03 26-260-04 26-260-16 26-260-05 26-260-12 26-260-06 26-260-18 26-260-14 Bulk cable in lengths up to 5000' rolls is available with or without connectors.
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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