User Guide Scan Converters VSC 500/700/700D Video Scan Converters 68-633-01 Rev.
Safety Instructions • English Warning This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. Power sources • This equipment should be operated only from the power source indicated on the product. This equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third (grounding) pin is a safety feature, do not attempt to bypass or disable it.
FCC Class A Notice 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. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation.
Conventions Used in this Guide In this user guide, the following are used: NOTE: A note draws attention to important information. TIP: A tip provides a suggestion to make working with the application easier. CAUTION: WARNING: A caution indicates a potential hazard to equipment or data. A warning warns of things or actions that might cause injury, death, or other severe consequences.
Contents Introduction............................................................ 1 About the VSC 500/700/700D............................. 1 Features............................................................... 1 Application Example............................................ 2 Rear Panel Connectors and Cabling..................... 3 Genlock and Vertical Interval Switching (VSC 700 and 700D only)................................... 5 Genlock Setup.................................................
VSC 500/700/700D User Guide • Contents vi
Introduction About the VSC 500/700/700D The Extron VSC 500, 700, and 700D are computer-to-video scan converters that can convert computer images up to 1920 x 1200 for output as composite video, S-video, component video, SDI (VSC 700D), and/or RGB video. Applications include videoconferencing, video recording, and viewing of images on an NTSC or PAL monitor or other display device.
Installation and Operation Application Example The illustration below is one example of using the VSC 500. Extron VSC Remote TouchLink™ Handheld IR Remote Control, Optional Control System VCR DVD DOC CAM LAP TOP PC ON OFF LAY DISP E MUT EEN SCR UP EEN SCR N DOW TCP/IP ® 100 REL UT INP IR RX TX 250 3 O VIDE VID S- V H UT ACT 2 4 2 4 2 3 -232 RS 22 /4 Y BB/ Y G/ Y RR/ LINK 4 3 1 1 2 R AY 1 3 1 COM IPL RS-232 S TP OU ED ER GH FF OU BU-THR OP LO A 0.
Rear Panel Connectors and Cabling 100-240V 0.3A BUFFERED LOOP-THROUGH RGB INPUT R/R-Y G/Y H/HV V INPUTS B/B-Y VID S-VIDEO RS-232 /422 OUTPUTS 50/60 Hz 1 2a 3a 4 5 7 6 Figure 2. VSC 500 Rear Panel Connectors 2b 100-240V 0.3A R G B H/HV V R/R-Y G/Y R G B H/HV V H/HV V INPUTS IN B/B-Y VID S-VIDEO GENLOCK RS-232 /422 OUTPUTS 50/60 Hz 1 3b 8 6 5 4 OUT 7 Figure 3. VSC 700 Rear Panel Connectors 9 2b 100-240V 0.
b. RGB (computer) input BNC connectors — Connect a computer video source (RGBHV, RGBS, RGsB) via these five female BNC connectors. Connect cables for the appropriate signal type, as shown here. R G B H/HV V R G B H/HV V RGBS RGBHV R B G H/HV V RGsB c a. Buffered loop-through VGA connector — For local monitor output of the input, connect a monitor to this female VGA 15-pin HD connector. b.
Pin RS-422 function Description 1 No connection 2 Tx- Transmit ground 3 Rx- Receive ground 4 5 No connection Gnd 6 Signal ground No connection 7 Rx+ Receive data 8 Tx + Transmit data 9 No connection h Genlock input and output connectors — Connect an external blackburst signal to the input (In) female BNC connector for genlocking the video signal in broadcast or other sync-critical applications.
3. Connect the video input signals to the VSC, as described previously in this section. 4. Connect the oscilloscope (“scope”) probe A to the Genlock Out connector. This will provide the reference signal of the scope. In order to avoid altering the genlock signal, use the cabling configuration that will be used in the installation. Either connect the genlock signal cable from the scope to the next device in the system to be timed, or provide 75 ohm termination at the genlock output of the VSC.
Oscilloscope Displays What you see on the oscilloscope while adjusting the VSC to match the genlock signal depends on the type of signal used, the type of oscilloscope, and the procedure the scope requires. This section shows some examples of oscilloscope displays. The following diagram shows the genlock input signal (top) and an out-of-alignment NTSC composite sync output signal (bottom) displayed on a waveform monitor to check for alignment.
The following diagram shows an example of a view of a vectorscope during adjustment of the color subcarrier phase (SC/H). The subcarrier phase should be aligned to 0º (indicated in the figure by the triangle. 340 350 0 10 20 30 330 A1+40 40 320 50 310 60 300 A2 70 290 A3 B1 280 80 270 90 260 100 250 110 240 B2 -40 120 230 130 220 140 210 B3 150 200 190 180 170 160 Figure 7.
Select the filtering levels 1. From the Filters menu, select the Flicker filter adjustment submenu (see the Filters menu section). Rotating the horizontal or vertical adjustment knob and observing the image, select the filtering level that produces the least amount of flickering. 2. From the Horizontal filter adjustment submenu, rotate the horizontal or vertical adjustment knob to reduce loss of detail in the scan converted image. 3.
NOTES: • Press the Next and Size buttons simultaneously for two seconds to enable or disable the front panel security lockout feature. When this feature is enabled, adjustments and changes to the scan converter setup cannot be made from the front panel controls, but centering adjustments can still be made using the horizontal and vertical adjustment knobs. See the Front panel security lockout (executive mode) section in this chapter.
Menu Overview The default menus appear on the LCD when no adjustments are actively being made. They cycle between the screen showing the name of the VSC (VSC 500/700/700D) and the screen that shows the horizontal and vertical frequencies of the input signal, as shown below. Power on Extron VSC 500 2 sec. 2 sec. 31.46KHz 59.94 Hz Figure 9. Default menu cycle with input signal Power on Extron VSC 500 2 sec. 2 sec. No Signal Figure 10.
Auto-Imaging Menu (Auto Set) The following flowchart illustrates the Auto-Image™ feature. Pressing the Next button will display the submenu and automatically size and center the displayed image to fill the output screen. Power on Extron VSC 500 2 sec. 2 sec. 31.46KHz 59.94 Hz 2 sec. MENU Auto Set NEXT=Go NEXT Auto Set ... Auto imaging • automatically sizes and centers the input to fill the screen Figure 13.
Output Configuration Menu (Output Config) The following flowchart provides an overview of the Output Configuration menu.
No input signal display type submenu (No Input) When no input is present, the VSC offers two types of outputs. Rotate the horizontal ([) or vertical adjustment knob ({) to select from among the following display types when no input signal is present: • Black screen (default) • Bars (color bars) Filters Menu (Filters) The following flowcharts provides an overview of the Filters menu. Output Config MENU Filters NEXT Flicker 0 NEXT Flicker control • 4 levels (0 - 3) with a default of 1 Figure 15.
Encoder adjustment submenu (Encoder) Rotate the horizontal ([) or vertical adjustment knob ({) to select from four levels (0 to 3) of encoding to maintain image sharpness. The default is 2. Zoom Menu (Zoom) The following flowchart provides an overview of the Zoom menu. Filters MENU Zoom NEXT Hzm 0512 Vzm 0512 NEXT Zoom control • Zoom in and out starting with the current size (default is 512) Figure 17.
Exit Menu (Exit Menu) The following flowchart describes the Exit menu. Pressing the Next button from this menu will return you to the default menu cycle. Extron VSC 500 Zoom 2 sec. 2 sec. 31.46KHz 59.94 Hz MENU Exit Menu NEXT Figure 19. Exit Menu Additional Functions In addition to the main menu system, there are several other functions that are featured by the VSC 500, 700, or 700D.
Shift Function The following flowchart describes the shift feature. Shift an image to center it or move it horizontally and vertically. From the default cycle, rotating either adjustment knob will display the Shift menu. The Shift menu will also display when the Next button is pressed from the Size menu. Extron VSC 500 2 sec. 31.46KHz 59.94 Hz 2 sec. NOTE: The Shift menu can also be displayed by turning either adjustment knob while in the default cycle.
Unit Reset Function To reset the VSC to the factory default settings, apply power to the VSC while pressing the Menu button. MENU Power on Unit Reset AND NOTE: Press and hold the Menu button, while applying power, to reset the VSC to factory default values. Figure 23.
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 Phase) might require readjustment.
VSC Infrared Remote Control The optional VSC IR remote control, shown at right, replicates all of the front panel controls except the Menu and Next 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“Serial Communication” for details).
Serial Communication The VSC 500, 700, and 700D can be remotely controlled via a host computer or other device (such as a control system) attached to the rear panel RS-232/422 connector. The control device (host) can use either the Extron Simple Instruction Set (SIS™) commands or the graphical control program for Windows.
RS-232 Programming Guide Host-to-VSC Communications SIS commands consist of one or more characters per field. No special characters are required to begin or end a command sequence. When the VSC determines that a command is valid, it executes the command and sends a response to the host device. All responses from the VSC to the host end with a carriage return and a line feed (CR/LF = ]), which signals the end of the response character string. A string is one or more characters.
Error Responses When the VSC receives a valid SIS command, it executes the command and sends a response to the host device. If the video scan converter is unable to execute the command because the command is invalid or it contains invalid parameters, it returns an error response to the host.
Command and Response Table for SIS Commands: VSC 500/700/700D Command Description ASCII Command Response Additional Description Horizontal Shift Specify the horizontal centering value X1) H Hph Decrement one step -H Hph Increment one step +H H View the horizontal centering value X1) ] X1) ] Hph X1)] X1)] Specify the centering value Shift left one step Shift right one step Show the horizontal centering value Vertical Shift Specify the vertical centering value X1) / Vph Decrement one step
Command Description ASCII Command Response Additional Description Firmware Version, Part Number and Information Requests Query firmware version number Q/q x.
Command and Response Table for Special Function SIS commands: VSC 500/700/700D Command Description ASCII Command Response Additional Description Output Video Type Set the output video type X\ *6# Tpo X\] Specify the output video type: 0 = RGBHV (default) 1 = RGBS 2 = RGsB 3 = YUV Example 1* 6# Tpo 1] Example: specify output video as RGBS 6# View the output video type X\] View the output video type Video Standard Set the video standard Example: X\ *14# Rte 1*14# Rte 14# View the video
Figure 25. Extron Software Window NOTE: If the installation program does not self-start, run Launch.exe from the DVD. 2. Click the Software tab. 3. Scroll to the VSC program and click Install. 4. Follow the on-screen instructions. The installation program creates a C:\Program Files\ Extron\VSC directory. Using the Control Program 1. To run the control program, double-click on the VSC program icon in the Extron Electronics group or folder. The Comm menu appears on the screen. 2.
Figure 27. VSC 700D Control Program Window 3. Click on the Configuration button to configure the VSC from the I/O Configuration window, as shown in the next illustration. Figure 28. VSC I/O Configuration window Using the help program For information on program features, press the computer key, or click on the Help menu from within the VSC Control Program, or double-click on the VSC Help icon in the Extron Electronics group or folder.
Uploading the firmware from the PC to the VSC Connect the PC to the VSC 500, 700, or 700D via the RS-232 port of the scan converter. Start the control program (see the “Using the Control Program” section). Next, select Update Firmware from the Control Program window and follow the instructions. Figure 29. Update Firmware Select Upload Firmware File from the following window. The uploading of the firmware to the VSC 500, 700, or 700D will take a few minutes. Figure 30.
Reference Information Specifications: VSC 500 Video input Number/signal type ��������������������� Connectors ������������������������������������� Nominal level �������������������������������� Minimum/maximum levels �������� Impedance �������������������������������������� Horizontal frequency�������������������� Vertical frequency�������������������������� Resolution range ��������������������������� Maximum DC offset ��������������������� 1 RGBHV, RGBS, RGsB with 1 buffered loop-through (1) 15-pin HD
Output impedance ������������������������ 75 ohms Max. input voltage ������������������������ 5.
DC offset (max. allowable) ���������� 2.0 V External sync (genlock) ���������������� 0.3 V to 1.0 Vp-p Video processing Encoder ������������������������������������������� Digital sampling ���������������������������� Colors ���������������������������������������������� Horizontal filtering ����������������������� Flicker filtering ������������������������������ Encoder filtering ���������������������������� 10 bit digital 24 bit, 8 bits per color 16.
Rack mount ������������������������ Yes, with optional 1U, 9.5" deep rack shelf, part # 60-190-01 (RSU 129) or 60-604-01 (RSB 129) Enclosure type ������������������������������� Metal Enclosure dimensions VSC 700 ������������������������������� 1.75" H x 8.75" W x 10.5" D (1U high, half rack wide) (4.4 cm H x 22.2 cm W x 26.7 cm D) (Depth excludes knobs.) VSC 700D���������������������������� 1.75" H x 8.75" W x 10.75" D (1U high, half rack wide) (4.4 cm H x 22.2 cm W x 27.3 cm D) (Depth excludes knobs.
Included Parts These items are included in each order for a VSC 500, 700, or 700D: Included Parts Part Number to Reorder VSC 500 60-476-01 or VSC 700 60-477-01 or VSC 700D 60-477-02 Rubber feet (not attached) SDI output board (700D only) 70-065-02 VSC 500/700/700D Setup Guide Accessories Accessories Part Number 1U high, 9.
Firmware Upgrade Chip Installation In some cases the VSC firmware may require replacement with an updated version. There is one user-replaceable firmware chip: U29 — the main microcontroller. The number is printed VSC 500 remove on the circuit board. We recommend thatcover.eps you send the unit in to Extron for service and updates. WARNING: Changes to firmware must be performed by authorized service personnel only. Follow these steps to replace firmware in the VSC. 1.
3. Locate the U29 firmware chip to be replaced on the circuit board, as shown in the following illustrations. replace CAUTION: VSC Do 700 not touch anychip.eps switches or other electronic components inside the VSC. Doing so could damage the video scan converter. Electrostatic discharge (ESD) can damage IC chips even though you cannot feel it. You must be electrically grounded before proceeding with firmware replacement. A grounding wrist strap is recommended. 4.
Mounting the VSC Select tabletop placement or rack mounting. Follow the appropriate installation instructions on the following pages. Tabletop or Desktop Placement For tabletop or desktop placement only, install the self-adhesive rubber feet/pads (provided) onto the four corners of the bottom of the enclosure.
Rack mounting procedure 1. If feet were installed on the bottom of the VSC, remove them. 2. Place the scan converter on one half of the 1U (one unit high, one unit wide) rack shelf (part number 60-190-01). Align the front of the VSC with the front of the shelf, and align the threaded holes on the bottom of the VSC 500/700 with the holes in the rack shelf. 3. Attach the VSC to the rack shelf with the two provided 4-40 x 1/8 inch machine Rack VSC the 500.eps screws.
Extron® Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase.
