iScan plusv2 User Manual
i Scan Plus User Manual Table of Contents TABLE OF CONTENTS 2 INTRODUCTION 4 IN A NUTSHELL 5 INSTALLATION OPERATION 5 6 INSTALLATION AND SETUP 7 TYPICAL CONFIGURATION SYSTEM REQUIREMENTS CONNECTIONS COLOR SPACE S ELECTION SYNCHRONIZATION SIGNALS 7 8 8 10 10 OPERATION 12 INPUT S ELECTION ASPECT RATIO CONTROL / SQUEEZE M ODE PROCESSING MODE INDICATORS POWER USAGE AND ENVIRONMENTAL R EQUIREMENTS 12 12 13 13 TROUBLESHOOTING 14 HOW IT WORKS 17 B ACKGROUND DEINTERLACING VIDEO PROCESSING 17 1
i Scan Plus User Manual SAFETY INFORMATION: 22 SAFEGUARDS PRECAUTIONS : 22 22 APPENDIX A – INTERNAL JUMPER SETTINGS 23 REMOVING THE ISCAN P LUS V2 MOTHERBOARD MODIFYING COMPOSITE SYNC J UMPER S ETTING MODIFYING S YNC-ON -GREEN J UMPER S ETTING MODIFYING VCR MODE J UMPER S ETTING REASSEMBLING THE ISCAN P LUS V2 23 23 24 24 24 APPENDIX B – EMI FERRITE SNAP-ON COLLAR 26 Note: ♦ DVDO, PureProgressive, i Scan, iScan, iScan Plus and iScan Plus v2 are trademarks of Silicon Image, Inc.
Silicon Image, Inc. i Scan Plus v2 User Manual Introduction Your iScan Plus v2 package contains: • • • • • • • iScan Plus v2 Line Doubling Upconverter Universal power supply module Power cable Composite input cable S-Video input cable Warranty card User Manual Your iScan Plus v2 package does not contain an output cable. You will need to get an output cable that works with your display device. There is more information on these cables in the Installation section.
Silicon Image, Inc. i Scan Plus v2 User Manual In a Nutshell If you already know about line doublers and have had experience installing these devices, here’s a summary of what is unique about the iScan Plus v2. Installation The iScan Plus v2 has 3 input ports and 1 output port. The inputs are auto-sensing and switching which means that they will automatically switch to whichever input is active. The “Input Priority” switch allows you to select which input should be used when more than one is active.
Silicon Image, Inc. i Scan Plus v2 User Manual position and will cause the ferrite to be more effective in removing high frequency noise from the system. Operation The only switch on the iScan Plus v2 that is not typically limited to installation usage is the “Aspect Ratio” switch. It is only required for widescreen televisions that have no aspect ratio control when using the iScan Plus v2. There are three positions on the Aspect Ratio switch: Normal, Squeeze (black) and Squeeze (gray).
i Scan Plus v2 User Manual Silicon Image, Inc. Installation and Setup Typical Configuration Figure 1 shows a typical configuration for a home theater system. In this setup, an iScan Plus v2 is being used to enhance the output from a DVD player, satellite receiver and a VCR before the selected signal is sent to a rear screen projection TV, or other progressively scanned display device.
i Scan Plus v2 User Manual Silicon Image, Inc. System Requirements The iScan Plus v2 is designed to interface to progressively scanned display devices that can draw horizontal scan lines at a rate of 31.5 KHz. Normal televisions operate only at 15.75 KHz but HDTVs, data projectors, high-frequency video projectors and computer monitors typically operate at the higher frequency. You should verify that your display is capable of operating at this horizontal scan rate.
Silicon Image, Inc. i Scan Plus v2 User Manual theater or high-end computer stores.
i Scan Plus v2 User Manual Silicon Image, Inc. BNC Connectors: Another type of input that is found on many display devices is the BNC connector. There are usually either 3, 4 or 5 BNC connectors depending on how your display device handles synchronization signals. These connectors are used on higher-end TVs, monitors and CRT projectors. These connectors are most commonly used for RGB but are sometimes used for Y-Pr-Pb signals as well.
i Scan Plus v2 User Manual Silicon Image, Inc. For RGB devices, there are a variety of ways that this sync information can be conveyed and the iScan Plus v2 can support most of these. The iScan Plus v2 generates separate H (horizontal) and V (vertical) sync signals in addition to the RGB outputs. This results in a total of five signals (RGB/HV). For many configurations, these five signals will be part of a single VGAàVGA output cable and there will be no need to worry about the individual signals.
Silicon Image, Inc. i Scan Plus v2 User Manual Operation Input Selection The iScan Plus v2 has been designed to detect which of the three possible input devices are turned on and are generating video signals and then to automatically switch to this input. With this capability, you can switch inputs simply by turning one input device on or by turning another device off.
Silicon Image, Inc. i Scan Plus v2 User Manual the center of the screen (where the video is) at a different rate than on the edges (where the black bars are). This would leave a visible dark area in the center when you return to widescreen mode. Since nearly all televisions sold are CRT-based, it is likely that the gray bar setting is the safest for your display. However, LCD and DLP-based projectors and displays do not suffer from burn-in so it is safe to use the black bar setting.
Silicon Image, Inc. i Scan Plus v2 User Manual Troubleshooting ♦ What do I do if no LEDs light when I plug the power supply? The iScan Plus v2 should automatically come “on” when plugged in. Check the connections to the iScan Plus v2, and to the power source. If all of these look good, you may have a failed power supply. ♦ What do I do if the power is on but I get no picture on the screen? The basic troubleshooting procedure is: 1) Check the Power indicator.
Silicon Image, Inc. - - - ♦ i Scan Plus v2 User Manual Then remove the Red signal and insert the Blue signal into the Blue connector and verify that the picture is blue. Then repeat with only the Green. If all three of these work, then plug them all back in again. Still messed up? It may be that the colors on the cable are mislabeled. Using a source with colors that you are familiar with, try to determine if two of the colors are swapped.
Silicon Image, Inc. i Scan Plus v2 User Manual VGA connector, you will need a VGA “Extender” cable, not a regular VGA cable to hook it up to the input of the switcher. This type of switcher could be used for either RGB or YPrPb type displays. If you are still having problems or have more involved questions, you should contact your authorized iScan Plus v2 dealer or distributor. They will be happy to help you.
Silicon Image, Inc. i Scan Plus v2 User Manual How it Works Background On a normal television, the video image is made by sweeping an electron beam across the face of the set where it excites phosphors causing them to glow. While repeated scanning across the tube, the television changes the intensity of the beam to vary the brightness of the image. If you look closely at the picture on a television set, you will see the horizontal scan lines that make up the image.
Silicon Image, Inc. i Scan Plus v2 User Manual Deinterlacing Deinterlacing is the process by which interlaced video is converted to progressively scanned video. Progressive scanning paints all of the lines of a frame in one top to bottom pass. This is used where transmission bandwidth is not an issue and where the highest quality image is required. None of the interlaced side effects are present with progressive scanning.
i Scan Plus v2 User Manual Silicon Image, Inc. iScan Plus V2 Video Source Analog to Digital Conversion Deinterlacing 480i to 480p Decoding NTSC to Component SiI502 Chip Digital to Analog Conversion Display or Projector Figure 4: System Block Diagram Video Processing All of the processing steps in the signal chain between your video source and the display influence the quality of the image. The following are brief descriptions of the series of steps shown in Figure 4. 1. 2. 3. 4. 5.
Silicon Image, Inc.
Silicon Image, Inc. i Scan Plus v2 User Manual Warranty Information Silicon Image warranties the iScan Plus v2 for 12 months starting from the date of shipment. In order to make the repair/replacement process as painless as possible for our customers, Silicon Image has asked our licensed distributors and dealers to administer this warranty. The iScan Plus v2 was designed to operate continuously for many years.
Silicon Image, Inc. i Scan Plus v2 User Manual Safety Information: Safeguards ♦ ♦ To reduce the risk of electric shock, do not expose this appliance to rain or moisture, do not operate the iScan Plus v2 with the cover removed. If the wall plug does not fit into your local power socket, then ask your electrician to replace your obsolete outlet. Do not modify the wall plug. To do so will void the safety feature.
i Scan Plus v2 User Manual Silicon Image, Inc. Appendix A – Internal Jumper Settings These modifications are only required in very rare circumstances. Composite Sync and Sync-onGreen are only required in RGB mode (never Component video/Y-Pr-Pb mode) and typically only with older, large front projectors. The rule of thumb is, if you are seeing a picture on your display, then you have the sync settings correct.
Silicon Image, Inc. i Scan Plus v2 User Manual plastic jumper should already be straddling the two pins labeled “NORMAL” which are nearest the front of the iScan board. 21) Remove this jumper from its current position by grabbing the top of the jumper and pulling directly away from the PC board. 22) Push the jumper onto the two pins closest to the rear of the iScan board, labeled “C-SYNC.
Silicon Image, Inc. i Scan Plus v2 User Manual You may want to attach a note to the iScan Plus v2 specifying which internal setting you have changed. This will be helpful at a later time when you may need to reconfigure your iScan Plus v2 to work with a new display device.
Silicon Image, Inc. i Scan Plus v2 User Manual Appendix B – EMI Ferrite Snap-on Collar To meet FCC EMI guidelines, the iScan Plus v2 power supply comes with a snap-on ferrite collar similar to those supplied with laptop computers and other portable electronic devices. The ferrite collar should be snapped on the end of the cable leading from the power supply to the iScan Plus v2 as shown in the illustration.
i Scan Plus v2 User Manual Silicon Image, Inc. Silicon Image, Inc. 1060 E. Arques Avenue Sunnyvale CA 94085 408-616-4000 E-mail: iscan@siimage.com iScan Plus V2 User Manual Rev. 2.3, August 2000.
