Scan Do Pro
Contents
1. The VGA and Macintosh Computer to Video Scan Converter Including Scan Do Pro C with Component Video Output and Scan Do Pro D with SDI and Component Output and RS 232 Control USER S MANUAL Eighth Edition November 1999 Y Communications I gt Specialties Inc WORLD HEADQUARTERS 55 Cabot Court Hauppauge NY 11788 USA TEL 631 273 0404 FAX 631 273 1638 WWW http Awww commspecial com EMAIL info commspecial com Singapore Representative Office 7500A Beach Road 15 314The Plaza Singapore 199591 TEL 65 293 0258 FAX 65 293 1538 EMAIL csiasia commspecial com P N 101383 Rev B Copyright 1999 CONTENTS INCLUDED WITH THIS PRODUCT YOU SHOULD HAVE AVAILABLE OPTIONAL ACCESSORIES User amp Certification Information 2 Introduction 3 Installation 4 Operation 6 Genlocking 10 Tips for Improving Your Converting Computer Images 12 Troubleshooting 15 Accessories 16 Rear Connector Pin outs 17 Statement of Warranty 19 1 Scan Do Pro Computer to Video Scan Converter 1 Universal input power supply 1 AC power line cord 1 6 foot Computer input cable for VGA and Macintosh 1 12 foot composite video output cable 1 12 foot S Video output cable 1 User s Manual 1 Product Registration card If you purchased a Scan Do Pro D you will also have 1 User s manual for RS 232 Remote Control with software 1 RS 232 DB 9 M F cable e 12 foot BNC adapter cable for Scan Do Pro s R2. Scan DoProis ON If this lightis glowing dim ornotatall itis an indication that something might be wrong with the internal power supply Input This indicator tells when a valid computer signal is present at the VGA In or Mac In connector on the rear panel Scan Do Pro will support any resolution having a horizontal sync frequency within the range of 31 71 kHz Generally this will include PCs up to 1280 x 1024 at 60 Hz Interlaced resolutions are not supported Test This button will force Scan Do Pro to generate a test signal on its composite and S Video outputs Press the button once and the unit will generate color bars Press it again to turn off the test signal generator The green LED on the Test button indicates when the test pattern generator is in operation From time to time your Scan Do Pro may output color bars even though you have not pushed the Test key on the front panel If your unit is generating color bars but the LED on the Test key is not illuminated there is either no input signal from the computer or the input signal from the computer is not in a resolution or mode supported by Scan Do Select Scan Do Pro User s Manual SHRINKING THE IMAGE TO FIT ON THE SCREEN REDUCING FLICKER INTHEIMAGE IMAGE FREEZE Underscan Because most TV monitors overscan their image display some desirable part of the image may be lost The UNDERSCAN button can be used to shrink the image both horizontally
3. FAX 631 273 1638 or in the Asia Pacific Region Singapore Representative Office TEL 65 293 0258 FAX 65 293 1538 See page 3 of this manual for complete address RMA numbers can also be obtained from our web site http www commspecial com Please have your serial number located underneath your unit available when contacting us Scan Do Pro User s Manual Page 19
4. GB output e 12 foot Sharp projector cable for Scan Do Pro s RGB output e 12 foot SCART cable for Scan Do Pro s RGB output e RF Modulator for North America channels 3 and 4 e AC line cords for North America Japan or Europe Rack mounting kits Scan Dois atrademark of Communications Specialties Inc Macintosh and Mac are registered trademarks of Apple Computer Inc Scan Do Pro User s Manual Page 1 USER amp CERTIFICATION INFORMATION FCC STATEMENT ULINFORMATION CEINFORMATION POWER SUPPLY INFORMATION ULINFORMATION CE INFORMATION Page 2 WARNING This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause interference to radio communications It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart B of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference when operated ina commercial environment Operation of this equipment in aresidential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be required to correct the interference UL INFORMATION This product carries the UL and CUL marks for ITE equipment Listing 8D47 CE INFORMATION Standards to which conformity is declared EMC EN 55022 1994 CISPR 22 1993 Cl
5. N OUTPUTS JUST A COLOR BAR TEST PATTERN SOME OF THE IMAGE IS BEING LOST OFF THE SIDES TOP OR BOTTOM THE COLOR ON THE TV MONITOR IS DIFFERENT THAN THE COLOR ON THE COMPUTER MONITOR Then Check The Following Isthe green POWER LED lit If it is not check to make sure that the external AC power supply is plugged into both the Scan Do Pro unit and the AC wall outlet e Check to make sure that the computer is properly sending out a VGA or Mac signal by plugging the monitor directly into the computer s video output e Is the green Input LED lit If it is not check that your computer is correctly connected to the Input connector on Scan Do Select If it is connected properly then your computer may not be producing a resolution within the valid range see page 6 or may not be producing any signal at all e Press the Test button to see if you get color bars on thecomposite and S Video outputs If you do get color bars then the problem is related to your input signal Check the items mentioned in the above bullet If you do not get color bars the problem is related to your output Is the VCR or video monitor in the proper mode to accept direct video input Is the output cable connected properly e When using a laptop try turning off the laptop s LCD screen and having the VGA signal output through the external port only e This is normal if you are in the overscan mode See page 6 for instructions on
6. alties and we will peform the upgrade 1246 Single rackmount kit This kit allows one Scan Do Pro to be rackmounted 1247 Double rackmount kit This kit allows two Scan Do Pro s to be rackmounted 1152 RGBS cable for BNC connection A 12 foot cable that connects the RGBS output of Scan Do Pro to video equipment with BNC connectors 1153 RGBS cable for Sharp LCD projectors A 12 foot cable that connects the RGBS output of Scan Do Pro to the DB 15 connector on Sharp LCD projectors 1155 RGBS cable for SCART connector on European TV monitors A 4 meter cable that connects the RGBS output of Scan Do Pro to a SCART A V connector 1156 RGBS input cable A 3 foot cable that connects an RGBS signal to the input of Scan Do Pro Page 16 Scan Do Pro User s Manual REAR CONNECTOR PIN OUTS POWER Center 5 Vdc In Outer Ground VGA Out MAC In PIN VGA OUT MAC IN HD 15 Connector 1 Red Red 2 Green Green 3 Blue Blue 4 ID bit 2 ID bit 2 5 Ground Ground 6 Red Ground Red Ground 7 Green Ground Green Ground 8 Blue Ground Blue Ground 9 N C N C 10 Monitor Present Computer Present 11 Ground ID bit 0 Ground ID bit 0 12 ID bit 1 ID bit 1 13 H Sync Out H Sync In 14 V Sync Out V Sync In 15 ID bit 3 Comp Sync In VGA In MAC Out VGA IN MAC OUT DB 15 Connector 1 Ground Ground 2 Red Red 3 Reserved Comp Sync Out 4 ID bit 0 ID bit 0 5 Green Green 6 Red Ground Red Ground 7 ID bit 1 ID bit 1 8 N C N C 9 B
7. and vertically approximately 10 in size Push the button to shrink the image and the green light willilluminate Push it again to restore the image to its original size and the light will extinguish Anti Flicker This button will activate one of two levels of flicker reduction When the filter is not activated the LED on this button remains unlit Pressing the button once activates level one of the anti flicker filter and illuminates the LED Using Level 1 you will still see some flicker but will benefit from a greater amount of vertical detail compared to Level 2 We recommend using Level 1 unless you find the amount of remaining flicker annoying Pressing the button again activates Level 2 of the anti flicker filter The LED remains lit Level 2 eliminates all flicker but also reduces the level of detail in the image Pressing the button once again will turn off the anti flicker filter and extinguish the green LED Donotassume that one setting will always provide you with most desirable image Depending on the types of images you are viewing you will find different settings will provide the best result Freeze You may desire to freeze or stop the image on your video screen without stopping your computer application If the button is pressed the image is frozen on Scan Do Pro s video outputs The green light will also illuminate Press the button again to extinguish the light andresume normal operation While in the freeze mo
8. ass B Limit EN 50082 1 1992 IEC 801 2 1991 IEC 801 3 1984 IEC 801 4 1988 UL INFORMATION This product carries the UL and CUL marks for ITE equipment Listing 2L85 CE INFORMATION Standards to which conformity is declared EMC EN 55022 1987 CISPR 22 1993 Class B Limit EN 50082 1 1992 TEC 801 2 1991 IEC 801 3 1984 IEC 801 4 1988 Scan Do Pro User s Manual INTRODUCTION Communications Specialties Inc 55 Cabot Court Hauppauge NY 11788 USA TEL 631 273 0404 FAX 631 273 1638 WWW http www commspecial com EMAIL info commspecial com Singapore Representative Office 7500A Beach Road 15 314 The Plaza Singapore 199591 TEL 65 293 0258 FAX 65 293 1538 WWW http www commspecial com EMAIL csiasia commspecial com Scan Do Pro User s Manual now have the ability to convert your high resolution computer video signal into a form suitable for recording on a VCR or displaying on a conventional TV or video monitor In addition Scan Do Pro offers genlock with timing allowing integration of computer graphics into a broadcast or professional environment Scan Do Pro does not require any special software and operates completely externally from yourcomputer T you for purchasing Scan Do Pro With Scan Do Pro you We advise that you read the section entitled Tips for Improving Your Converted Computer Images later in this manual It provides some useful suggestions for obtaining the best po
9. de all keypad functions are disabled except the FREEZE key If you attempt to press any other key while in the freeze mode the indicator light on the freeze key will flash to indicate Scan Do Pro is in the freeze mode Scan Do Pro User s Manual Page 7 ACTIVATING THE COMPONENT OUTPUT POSITIONING THE IMAGE ON THE SCREEN MAGNIFYING THE IMAGE Page 8 Y R Y B Y This button is only active on Scan Do Pro C and Scan Do Pro D models including Scan Do Pro units that have been upgraded to feature component output The component output supports the signal level differences for both Betacam and MII component video formats When you first push the Y R Y B Y button and the light first activates the signal levels on the component output are in the Betacam mode When you press the Y R Y B Y button a second time the signal levels on the component output will go to the MII mode Push the button again and the outputs will return to Red Green and Blue and the light will go out If the light flashes and then goes out when the button is pressed then the Y R Y B Y component output option is not installed Image Positioning Arrows TV monitors and video projectors may not always display the image in the center of the screen even when it is underscanned Scan Do Pro has four buttons that allow you to position the displayed image up down left and right to properly position the image in the center of the screen These
10. er has temporarily changed resolutions during a program and the output of Scan Do Pro has momentarily flashed a blue screen If you think the blue screen should not occur make sure one of the above conditions is not occurring Computer Display Resolution Support The design of Scan Do Pro does its best to determine the pixel resolution i e 640 x 480 and the vertical refresh rate i e 72 Hz that is coming from your computer While there are published standards for most of the display modes some manufacturers of older cards may have chosen to vary slightly from these standards If you encounter a display mode that matches one of the modes listed on page 6 but Scan Do Pro does not respond to it we want to know about it Give us acall or drop us a note and tell us the computer make and model make and model of the video display card and the display resolution and vertical refresh rate you re having a problem with We ll do our best to replicate the problem and let you know what we can do to fix it The Computer Input Cable The cable supplied with Scan Do Pro for connecting to your computer is somewhat different than what you might be used to seeing It is designed to be compatible with both VGA and Macintosh computers Itis specially wired and DB 15 to HD 15 adapters cannot be used as substitutes When connecting Scan Do Pro to your computer start with your computer output to match the right connector on the cable Scan Do Pro Use
11. how to use the underscan key Then use the cursor keys to center your image on the screen e Thecolors on your TV monitor will never exactly match the colors on your computer monitor because each of these devices reproduce color differently However try adjusting the color tint contrast and brightness controls on your TV to help match the colors as best you can The color bar test pattern built into Scan Do Select may help you in this process Scan Do Pro User s Manual Page 15 ACCESSORIES The following accessories are available for Scan Do Pro They may be ordered from your dealer or directly from Communications Specialties Inc If you need an accessory that you don t see here or have a specific application for which you need assistance please give us a call ITEM DESCRIPTION 1278 Upgrade for RS 232 Remote Control This will upgrade a Scan Do Pro to a Scan Do Pro w RS 232 This upgrade can be done by the user or the Scan Do Pro can be returned to Communications Specialties and we will perform the upgrade 1279 Upgrade for Y R Y B Y component output This will upgrade a Scan Do Pro to a Scan Do Pro C This upgrade can be done by the user or the Scan Do Pro can be returned to Communica tions Specialties and we will perform the upgrade 1280 Upgrade for serial digital sdi output component output and RS 232 Remote Control This upgrade can be done by the user or the Scan Do Pro can be returned to Communications Speci
12. ile memory Make sure the green light is lit on the GENLOCK button to keep Scan Do Pro in the genlock mode You may free run Scan Do Pro at any time by pushing the GENLOCK button to extinguish the green light on the GENLOCK button You can then reinstate genlocking by pushing the GENLOCK button If the GENLOCK button is pushed and there is no reference genlock signal present the GENLOCK light will flash on and off If you then connect a valid reference input the GENLOCK light will stay on steady You can also push the GENLOCK button again to extinguish the light If Scan Do Pro goes out of the genlock mode for any reason or if power is lost Scan Do Pro will remember the last genlock timing and phasing settings Scan Do Pro User s Manual Page 11 TIPS FOR IMPROVING YOUR CONVERTED COMPUTER IMAGES KNOW WHAT YOUR CONVERTED IMAGE WILL LOOK LIKE USE BLACK AND WHITE AVOID INTENSE COLORS Page 12 surprised that computer images converted to video do not look as sharp and vivid as the original computer image does Unfortu nately this result is inevitable regardless of the scan converter you use for the technology behind TV video is far inferior to that behind newer computer video standards This is not to say that the quality of scan converter you use doesn t matter but even the very best scan converter will not provide output that matches the quality of your original computer picture has been our e
13. ipment Once the reference genlock input is connected to Scan Do Pro it is necessary to phase both the horizontal and subcarrier phasing of Scan Do Pro s video outputs to the genlock reference signal Scan Do Pro User s Manual GENLOCK SET UP PROCEDURE First push the GENLOCK button on the front panel The green light will indicate that a valid reference video signal is present Next push the GENLOCK PHASING button on the front panel The four arrow buttons on the front panel now are used for subcarrier SC SC phasing and horizontal H H timing To set the horizontal timing of Scan Do Pro relative to the reference input display both the reference input and Scan Do Pro s video simultaneously on a waveform monitor The waveform monitor should be synchronized to the reference input Adjust H or H on Scan Do Pro to align the leading edge of horizontal sync of Scan Do Pro with that of the reference input To set the subcarrier phasing of Scan Do Pro relative to the reference input display both the reference input and Scan Do Pro s video simulta neously on a vectorscope display The vectorscope should use the subcarrier of the reference to synchronize the vectorscope Adjust SC or SC on Scan Do Pro to align the burst of Scan Do Pro with that of the reference input After timing and phasing is accomplished push the GENLOCK PHAS ING button again to extinguish the green light and to save the settings in non volat
14. localized in one particular area and is due to the fact the TV monitors unlike computer monitors draw the even and odd lines within the picture in alternating passes This effect is most noticeable on thin horizontal lines particularly bright lines against a dark back ground Scan Do Pro offers a two step anti flicker filter that provides you with the choice of how much flicker should be eliminated As more flicker is eliminated there is an inherent trade off of loss of vertical detail When using this feature experiment with different settings as you will receive the maximum benefit from different levels depending on the type of visual you are displaying You may also want to keep in mind when designing your presentation that the less thin horizontal lines you use in your image the less likely that any flicker will be visible Almost all new larger screen commercial TVs have an S Video jack S Video is a superior form of the standard TV video signal in that the brightness and color components of the image are separated into two separate signals This results in far fewer distortions and noticeably superior image quality So if your TV or VCR is S Video equipped definitely use the S Video output from Scan Do Pro You ll see a difference Scan Do Pro User s Manual Page 13 Page 14 Scan Do Pro User s Manual TROUBLESHOOTING IF THIS IS YOUR PROBLEM NOTHING WORKS OR THERE IS NO VIDEO OUTPUT NO VIDEO O
15. lue Blue 10 ID bit 2 ID bit 2 11 Ground Ground 12 V Sync In V Sync Out 13 Computer Present Monitor Present 14 Ground Ground 15 H Sync In H Sync Out COMPOSITE VIDEO Center Video Out OUTPUT Outer Video Ground S VIDEO OUTPUT 1 Ground 3 Luminance 2 Ground 4 Chrominance RGB OUTPUT Center Video Out Outer Video Ground Scan Do Pro User s Manual Page 17 Page 18 Scan Do Pro User s Manual WARRANTY of three years after purchase by the Buyer Scan Do Pro will be free from defects in material and workmanship under normal use and service A Return Material Authorization RMA number must be obtained from CSI before any equipment is returned by the Buyer All material must be shipped to CSI at the expense and risk of the Buyer Cetin yeas Specialties Inc CSI warrants that for a period CSI s obligation under this warranty will be limited at its option to either the repair or replacement of defective units including free materials and labor In no event shall CSI be responsible for any incidental or consequential damages or loss of profits or goodwill CSI shall not be obligated to replace or repair equipment that has been damaged by fire war acts of God or similar causes or equipment that has been serviced by unauthorized personnel altered improperly installed or abused RMA numbers and repairs can be obtained from Communications Specialties Inc 55 Cabot Court Hauppauge NY 11788 USA TEL 631 273 0404
16. positioning controls will move one increment for every push of the button If you leave the button pressed it will move continuously slow at first then fast These positioning buttons are only active as positioning controls when Scan Do Pro is not in the GENLOCK PHASING mode Magnify Pushing this button will magnify the image from your computer by approximately 160 When you first press the button the green indicator will light and the output of Scan Do Pro will show the center portion of the computer image full screen on its outputs By using the four positioning buttons you can show any magnified portion of the original computer image If you press HOME on the UNDERSCAN button the image will reposition first to the upper left corner then to the lower left when pressed again then lower right then the upper right as the button is pressed in succession Torestore the image to its original size press the MAGNIFY button again Scan Do Pro User s Manual OTHER OPERATIONAL FEATURES Blue Screen From time to time you will notice the video outputs will show a blue screen Sometimes this happens for a brief instant and other times the blue screen output is continuous Scan Do Pro automatically produces this blue screen under any one of the following conditions e There is no input signal from the computer e There is a signal from the computer but it is not in a resolution or mode supported by Scan Do Pro e Your comput
17. r s Manual Page 9 GENLOCKING GENLOCK REFERENCE CONNECTION Page 10 The information in this section need only be reviewed if you intend to genlock Scan Do Pro Genlocking is the process whereby the video output of Scan Do Pro is synchronized or locked to a reference video signal This is sometimes done when the Scan Do Pro video outputs are to be mixed with other video signals to create one video signal If you intend to only display the Scan Do Pro video output directly onto a video projector or monitor or record it onto a video tape by itself then genlocking is not required The genlock connections to Scan Do Pro are used only for synchroniza tion Scan Do Pro does not overlay the computer image on top of the genlock video signal In This connector is the input for the reference video signal for genlocking Scan Do Pro It will accept any composite video signal including black burst in the video standard selected by the NTSC PAL switch It is important that the genlock reference input be a stable or time base corrected video signal Neveruse a video signal from a VCR tape playing back unless it is going through a time base corrector to stabilize it Out This connector is the passive loop through of the genlock reference input signal This connector should be terminated in 75 ohms when an input reference signal is present This can be done either by placing a termination on the connector or by downstream equ
18. rovide power to Scan Do Pro Connect one of Scan Do Pro s video outputs to your video equipment Depending on what type of video equipment you are connecting to you may use one or more of the following outputs Composite This is asingle composite video signal and is compatible with the video input on VCR s and consumer TV monitors as well as all professional video equipment It cannot be connected to the antenna input S Video This is an advanced form of video where the brightness and color parts of the image are actually on two separate signals This signal is sometimes called S VHS S Video or Y C It is also compatible with Hi 8 and the Beta ED standards Use of this output will yield a better quality picture than the VIDEO output Red Green Blue Sync This output has separate RED GREEN BLUE and SYNC signals which can be used by some video projectors and monitors On Scan Do Pro C and Pro D models only R Y Y B Y The component video signals are available on the BNC connectors in lieu of the RED GREEN and BLUE signals as determined by the front panel control On Scan Do Pro D model only SDI The serial digital output provides an SDI output in accordance with SMPTE 259M Scan Do Pro User s Manual VIDEO STANDARD SELECTION NTSC PAL This switch selects the video timing standard to be used for the VIDEO S VIDEO and RGB outputs NTSC is the standard for the USA Canada Mexico Japan and par
19. ssible image from your Scan Do Pro It also explains what you should expect in terms of image quality when your computer images are recorded on a VCR or displayed on a conventional video monitor or TV Like all the products from Communications Specialties Scan Do Pro comes with our continuing commitment to provide support In order to assist us in this process please be sure to mail in your product registration card This will make iteasier for us to notify you with any new product announcements or other information concerning our product line Should you need to contact us for support our office is open Monday through Friday from 8 30 AM to 5 00 PM Eastern Time We also offer a comprehensive web site for your added convenience Thank you for choosing Scan Do Pro As always we welcome your comments and suggestions Page 3 INSTALLATION INSTALLATION STEPS AVAILABLE OUTPUTS SYNCTYPES Page 4 Disconnect your monitor from the monitor port on your PC Connect the 6 foot input cable provided with Scan Do Pro from the monitor port on your computer to the connector on the rear panel of Scan Do Pro for either VGA IN or MAC IN This input cable is used to connect to both Mac and VGA computers Connect your monitor if you have one to the MONITOR connector labeled VGA OUT or MAC OUT Connect the power supply provided with Scan Do Pro to the connector labeled POWER Connect the AC line cord to the wall outlet to p
20. ting gray in place of color whenever appropriate Along the same lines fully saturated colors like bright red and green look terrible on a TV monitor And recording these colors to videotape makes them look even worse Whenever possible try to use slightly muted colors instead Scan Do Pro User s Manual USE HIGH GRADE VIDEO TAPE PAY ATTENTIONTO YOURBORDERS ELIMINATE FLICKER USE S VIDEO When making a VCR recording use a name brand videotape with a Pro or Broadcast grade An S VHS tape can also be used even if you re only making a standard VHS recording Also record using the fastest possible speed shortest time mode You will have less noise and tape jitter in your recording TV and video signals are designed to bleed off the edges of the screen This means that when a computer picture is converted to a TV standard the borders of your picture will be lost In order to avoid this cropping effect you can use theZoom feature on Scan Do Pro to display your image at 85 If you would prefer to use the bleeding effect in your final display be sure to design your presentation with ample borders surrounding the live area of your image That way when the cropping does occur no critical part of your picture will be lost By far the most annoying effect that occurs when a computer image is converted to video is flicker This rapid flashing may appear throughout the screen or
21. ts of South America PAL is used throughout most of Europe the Middle East Southern Asia and the Pacific Rim All outputs are available at the same time Unused outputs do not have to be terminated if they are not being used The REFERENCE GENLOCK IN and OUT connection are described fully in the genlocking section Complete the installation by powering ON your computer if itis not already ON The front panel green indicator labeled INPUT should light after the computer is turned on to indicate it is receiving a proper signal from the computer Please refer to the OPERATION section for an explanation of this indicator Besure the front panel FREEZE lightis OFF to see your computer s image on Scan Do Pro s outputs Scan Do Pro User s Manual Page 5 OPERATION DIAGNOSTIC LEDS VGA AND MAC RESOLUTIONS SUPPORTED HOW TO ACTIVATE TESTSIGNALS COLOR BARS WHEN TEST IS NOT ACTIVATED Page 6 but also provides an extremely easy intuitive user interface However in order to fully understand how Scan Do Pro operates and to take advantage of all of its features we suggest that you read this section in its entirety If after becoming familiar with the unit s operation and features you still have questions and need to contact us please refer to Page 3 for our phone fax email and web S can Do Pro not only offers high performance and reliability address Power This indicator tells when power is present and
22. xperience at CSI that customers are sometimes Scan converters like Scan Do Pro were created to bridge the differences between the relatively new standards of computer video and the 40 year old standards of conventional TV video When using a scan converter there are several things you can do to get the best possible results from the conversion process These involve under standing the limitations of standard TV video and creating images that work around these shortcomings The following tips apply whether you are displaying your scan converter output directly on a monitor or recording it onto videotape While you should have realistic expectations regarding the type of image you will be able to obtain taking the following steps will definitely improve your results First of all when creating any computer presentation that you ultimately plan to display in video format it is always a good idea to hook up a Scan Do Pro and view the output on a TV monitor during the creation process While this may require a little bit of extra set up time it has the potential to save you far more time and aggrevation later on by avoiding the need to correct any unwanted surprises in your finished work In the world of standard TV video shades of gray are processed differently than colors In fact TVs and VCRs process black white and all grays in between with a minimum of distortion Use this to your advantage in the design process by substitu
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