Meridian Audio LD100/LD100U User's Manual
Contents
1. The Faroudja LD100 LD100U Line Doubler Installation amp Operation Instructions TABLE OF CONTENTS arie rH Duc TT 2 Licensees and AWSFOS s dosciet Xe pea du PY Eae EC OCSRceabr es 3 System DeSCHDIID zncus e e ss dee od 24 EErEE RU RC AEE E ob ec 4 lnventory LIS uo iced Yd ERU REID ruo d E Ede a e e e E 5 Caution NOTES D EEUU PED 5 Technical Highlights iiec e Den i odes EDO deer feared 6 Installatton Inst GODS a vow em EX x be bdo FER RREEE XE ob RA tows 8 Rear Panel o P PR ELTE 8 MCCS ICE 9 Line Doubler Operating Instructions 2 000 200e 10 TOUDIESNOOUNG s ss wee cm warn es Cee we dub creer eee ee Eee bs 28 tad 12 Appendix A Remote Control Operation 2 2005 13 Appendix B VGA DUIDUEL s oO EX Ee heh RE REOR OR eee tees tee bee 16 Appendix C Cable Lengths c cud cag e tec RED e e bode 16 SDSbITICSIIORS ce qe dece awe enet dees Ba ee eee wees se Pee eh ad 17 Warranty Informati n seses iare opa eb E ERR Ere LEGE Presb ERS 18 Copyright 1994 by Faroudja Laboratories Inc No part of this document may be copied photocopied reproduced translated or reproduced to any electronic medium or machine readable form without prior consent in writing from Faroudja Laboratories Inc The Faroudja Laboratories LD100 Line Doubler is covered by the following United States patents 4 030 121 4 179 705 4 240 105 4 262 304 4 847 681 4 864 389 4 876 596 4 893 176 4 916 526 4 967 271 4 92. Negative 4Vp p 75 Ohm 31 5KHz Negative 4Vp p 75 Ohm 31 5KHz 59 94Hz Negative 4Vp p 75 Ohm 15 Pin D Connector VGA Standard Low Pass Filter 3db 11MHz Low Pass Filter 3db 22MHz Low Pass Filter 3db 6MHz Low Pass Filter 3db 12MHz 1 Field 2 5 Lines 100 250 VAC 50 60Hz 60W Auto Ranging 2 Amp Slo Blow AGC 2A 17 W x 3 5 H x 21 D 43 1cm x 8 9cm x 53 3 cm 22 Ibs 9 8Kg NOTE 625 lines 50Hz component or RGB signals are usable with the LD100 Outputs are identical to those of the LD100U in that mode 19 48 26cm with rack mount ears Design and specifications are subject to change without notice 17 LD100U Specifications INPUT SIGNALS NTSC Video Y C RGB YUV Composite Sync INPUT SIGNALS PAL Video Y C RGB YUV Composite Sync OUTPUT SIGNALS NTSC R G B Vertical Sync Horizontal Sync Composite Sync VGA Standard OUTPUT SIGNALS PAL R G B Vertical Sync Horizontal Sync Composite Sync VGA Standard LUMINANCE Input Conditions Output Conditions CHROMINANCE Input Conditions Output Conditions PROPAGATION DELAY POWER CONSUMPTION FUSE DIMENSIONS WEIGHT 525 Line 2 1 Interlace 1Vp p Negative Sync 714mV Luminance Y C 3 58 Non Composite 700m Vp p Y 286mVp p C Burst 700mVp p Non Composite 1Vp p Composite Y 1V w Sync R Y 714mV B Y 714mV Negative gt 4Vp p Composite 625 Line 2 1 Interlace 1Vp p Negative S
3. explanation of the visual improvements it provides in home video playback systems First before we discuss the LD100 let s take a quick look at the history of the current television standard Today s 525 line TV picture standard was actually developed in the 1940 s when broadcasts were only in black and white Keep in mind that back then the transistor had not yet been invented In 1953 the National Television Systems Committee NTSC adopted what is still the present method of color TV broadcasting It was designed to be fully compatible with the older technology of black and white transmission Unfortunately this need to main tain compatibility with old technology led to unavoidable compromises in NTSC picture quality Today thanks to the advent of new thinking and new technologies realized by industry pioneer Yves Faroudja these compromises can be nearly eliminated Faroudja s unique approach focuses on critical problem areas in the NTSC and PAL broadcast format With patented engineering and design work Yves and Faroudja Laboratories have created an exceptional product that brings new lev els of visual reality to the enjoyment of discerning video enthusiasts around the world LICENSEES AND AWARDS Licensees Around the World 1987 SMPTE Faroudja s inventive approach to improving the qual DAMID SARNOEERSOEDIMEDAL ANARD p for ity of video imaging has caught the eye of some of u P E the world s greatest high t
4. inputs e g laserdisc players S VHS or Hi 8 video tape recorders satellite receivers etc Press to select the Y C input Using the Y C input on the LD100 allows one to realize all the benefits of maintaining the separation of the luminance picture and chrominance color signal through the video signal processing chain thus avoiding rainbow patterns due to cross color interference 4 RGB RGB refers to the incoming video signal being broken down to the individual red green and blue format more typically found in the pro fessional and broadcast area The most common 10 10 11 12 13 use of this input is computers running at 15 75 kHz Press to select the RGB video input 5 Component Input Component Inputs are more commonly used in the broadcast studio or post production environment The video signal in its component form Y R Y B Y is carried in a 3 wire cable with BNC type connectors e g MII D1 Betacam Betacam SP etc Press to select the Component video input PICTURE CONTROLS 4 The four rotary style picture controls BRIGHT NESS CONTRAST COLOR and TINT are factory preset when pushed in When pulled out they become active for manual adjustment Pushing the knob back in after manual adjustment gives you the opportunity to compare your setting to the factory preset s The rotary control format allows for a high degree of tactile feedback when one is adjusting the picture functions Ad
5. D connector located on the rear panel See appendix A for fur ther information SYSTEM DESCRIPTION Circuit Description Figure 1 is a block diagram of the LD100 showing signal flow and the location of front panel controls and switches Composite Video and Y C S VHS inputs are connected to the units decoder with AGC control and converted to Y R Y and B Y signals The Y Luminance output from the decoder enters the input switcher while the R Y and B Y signal enter the Chroma Enhancement block where the Tint phase can be adjusted when selected in the manual mode The RGB input signals are trans coded to Y R Y and B Y signals and fed to the input switcher Component signals are fed directly to the input switcher The input switcher then selects the correct function and outputs the Y signal to the Luminance Line Doubler block The Luminance Line Doubler block contains the Brightness Contrast and Freeze con trols while the R Y and B Y signals enter the Chroma Line Doubling block where the color level can be controlled along with the Freeze controls The Line Doubled Luminance signal now enters the Luminance Detail and Noise Reduction block where the functions of Noise Reduction and Detail Level are controlled The Luminance signal from the Luminance Detail and Noise Reduction block along with the R Y and B Y signals from the Chroma Line Doubling block feed the output transcoder and are converted to RGB signals These RGB
6. images that retain their original crisp look RAINBOW PATTERNS When you notice the fine detail of a striped referees shirt rippling with colored rainbows as the camera pans by you ve seen video cross color inter ference This annoying artifact is caused by imperfect separation of the color chroma and black and white luminance sig nals by the color decoder circuitry Simple techniques used commonly to separate the two signals can be effec tive most of the time but occasionally are fooled by finer pitch detail areas like the referees shirt The decoder in the LD100 has patented digital adaptive comb filter cir cuitry that eliminates decoding errors of this type and enables the reproduction of sharper cleaner color images DOT CRAWL and HANGING DOTS This phenomena is easily seen with large highly colored stationary graphics like titles and credits Dot crawl is a rapid upwards move ment of colored dots on sharp vertical transitions Hanging dots lie underneath all the colored horizontal transitions Both of these color aberrations are artifacts that appear due to an imperfect color decoding process The LD100 has two separate and patented correction circuits that work to eliminate both of these distortions The impact is color transitions that are clear sharp and natural SECTION B THE LD100 Patented Line Doubler elimi nates VISIBLE SCAN LINES The secret of the LD100 s uncanny ability to double the lines of informatio
7. tion via a data terminal and automatic control via a controller Corc Adjust Contrast Level This command is follow by an integer between O minimum and 255 maximum Example C1 or C12 or C123 ect Kork Adjust Color Level This command is follow by an integer between O minimum and 255 maximum Example K1 or K12 or K123 ect Command Line Entry A Command Line can be entered in either upper or lower case by means of a data terminal or other controller The Echo Mode determines the response of the LD100 to the incoming data stream If the Echo Mode is ON E1 command the entered char Tort Adjust Tint Phase acters are echoed back to the host and any mes This command is follow by an integer sage are sent in its entirety IF Echo Mode is OFF between 1 minimum and 255 maximum EO command no characters are sent to host If the command TO is entered the Auto Tint mode is active where as numbers Command Syntax from 1 to 255 are used the Auto Tint Commands consist of a header followed by a key Function is bypassed Example T1 or T12 word followed by additional parameters if needed or T123 ect The header is used to identify the product in the Norn AdjustNoise Reduction Level case the header is LD100 Keywords are single This command is follow by an integer characters followed by integers if needed All com between O minimum and 255 maximum mands must be separated by a comma White Example N1 or N12 or N123 ec
8. 82 280 4 989 090 5 014 119 5 025 312 5 159 451 5 237 414 All Rights Reserved FAROUDJA HISTORY Some Video History and the Faroudja Approach Faroudja Laboratories located in northern Califor nia s Silicon Valley was founded in 1971 by Yves and Isabell Faroudja to develop state of the art of video processing technology Over the last 20 years Faroudja Laboratories and its companion R amp D center Faroudja Research have indeed devel oped hundreds of advanced electronic processes to improve video enhancement noise reduction and NTSC encoding decoding technologies Many of these processes are used under license by the world s leading electronics companies in a wide range of high performance video products Faroudja professional video equipment is also currently hard at work in hundreds of television studios Thus Faroudja technology is utilized and enjoyed in millions of American homes every day Yves Faroudja has devoted his career and his com pany to the goal of enabling home video systems to achieve the image quality of 35mm motion pictures In pursuit of this goal Faroudja Labs has made use of techniques from Faroudja professional video equipment and incorporated these in the LD100 and LD100U line doublers This booklet will provide the reader with a hands on look at the LD100 its operation and benefits Also supplied is an overview of the proprietary tech nologies utilized in this extraordinary device and an
9. 91 for 1993 VIDEO MAGAZINE minimizing artifacts in the NTSC broadcast encod Video Visionary ing process LD100 Line Doubler 10 Best Products SYSTEM DESCRIPTION FARUOUDJA sisrkM cone The Faroudja System LD100 digital scan converter is a precision video instrument used to convert NTSC Composite Y C or 525 line RGB or Component interlaced signals into 525 line progres Sive outputs Using the LD100 digital scan converter will produce pictures with more details remove unwanted picture artifacts and when used with pro jection systems produce pictures of exceptional quality giving a cinema like feeling Front panel features include Power Input Select Video Y C RGB and Component Brightness Contrast Color Auto Tint Noise Reduction Detail AGC and Freeze Input switch settings are memo rized when the power is removed from the unit This allows the LD100 to be interfaced into a system without the need to select the input when the sys tem is powered up During power up the AGC switch is selected in the On mode with the Freeze switch selected OFF The remaining controls may be left in factory preset or manually set by pulling out and rotating the control until the desired level is established Inputs to the LD100 include Composite Video Y C S VHS RGB and Component Y R Y B Y The Video input may be connected by either a BNC con nection or a video RCA type connection These inputs are looped internally so
10. bottom and top vent holes Blocking these holes will greatly reduce the reliability of the unit and lead to the possibility of overheating When the LD100 LD100U is rack mounted a mini mum of 1 25 1 rack unit height of free space is to be provided for both the top and bottom of the unit Figure 3 to allow for proper cooling It is also recommended that the rack be forced air cooled Rear Panel I O 1 Video Termination Switch Select ON when not looping the Video signal to other video devices 75 Ohm 2 Video Input BNC Composite Video Input 3 Video Input RCA Composite Video Input 4 Video Input BNC Composite Video Input Loop 5 Y C Input 4 Pin Y C input internally termi nated 6 R R Y Termination Switch Select ON when not looping the R V signal to other video devices 75 Ohm 7 R R Y Input Loop BNC Red R Y Input 8 R R Y Input BNC Red R Y Input 9 G Y Termination Switch Select ON when not looping the G Y signal to other video devices 75 Ohm 10 G Y Input Loop BNC Green Y Input 11 G Y Input BNC Green Y Input 12 B B Y Termination Switch Select ON when not looping the B B Y signal to other video devices 75 Ohm 13 B B Y Input Loop BNC Blue B Y Input 14 B B Y Input BNC Blue B Y Input 15 16 17 18 19 20 21 22 23 24 25 26 CAMERE Sync Termination Switch Select ON when not looping the Composite Sync
11. cable runs when an LD100 is used To preserve the video quality of the LD100 the signal path should be no more than 3db down at 25 MHz through a 75 ohm cable Any distribution amplifier should have a bandwidth no less than 3db down at 25 MHz The following cable lengths are the maximum rec ommended continuous lengths of 75 ohm coax cable with BNC connectors on each end as well as 15 pin VGA cable when using the VGA output 16 Cable Type Maximum Length Mini BNC cables 75 ohm 100 Feet 1 15nS Foot propagation RG 59 U type cable 75 ohm 150 Feet 75 ohm precision video cable 200 Feet Belden 8281 15 pin high resolution VGA cables 25 Feet utilizing individual high resolution mini coax cables for each signal from LD100 to monitor SPECIFICATIONS LD100 Specifications INPUT SIGNALS NTSC Video Y C RGB Component Composite Sync OUTPUT SIGNALS NTSC R G B Vertical Sync Horizontal Sync Composite Sync VGA Standard LUMINANCE Input Conditions Output Conditions CHROMINANCE Input Conditions Output Conditions PROPAGATION DELAY POWER CONSUMPTION FUSE DIMENSIONS WEIGHT 525 Line 2 1 Interlace 1Vp p Negative Sync 714mV Luminance Y C 3 58 Non Composite 700m Vp p Y 286mVp p C Burst 700mVp p Non Composite 1Vp p Composite Y 1V w Sync R Y 714mV B Y 714mV Negative gt 4Vp p Composite 525 Line Progressive Scan 1050 Line per Frame Non composite Positive 714mVp p 59 94Hz
12. ditionally these controls provide a wider range of adjustment than those typically found on monitors and televisions In addition automatic chroma level and phase con trols ACC and APC are provided As a conse quence all source to source variations in chroma phase and level are corrected When the signal is fed to a monitor through the RGB inputs the monitor color and tint controls are typically bypassed Incorporating the LD100 in such a system with its broad range controls restores and enhances this control flexibility Every LD100 is subjected to an intense battery of QC and environmental tests Then each unit is re tested and re calibrated for optimum performance The component parts used in the LD100 are the finest available ensuring long term consistent per formance and reliability This unique quality oriented Faroudja touch can also be seen in the design of many of the LD100 s controls and features 6 Brightness Level Known as Set up in the broadcast industry the BRIGHTNESS control is used to set up the background black level P ull the knob out and turn fully counter clockwise until the picture goes dark Then rotate the con trol clockwise until the black areas in the picture just begin to go gray Turn the control back counter clockwise until the gray just goes to black This is the optimum setting 7 Contrast Level As the BRIGHTNESS control sets the background black level the CONTRAST control se
13. e quality is important computer data displays pro fessional installations in boardrooms and media rooms military installations government agencies and academic uses in schools and colleges From the quality of its indi vidual parts to its state of the art patented circuitry the LD100 is truly in a class by itself There is simply no finer video processor available at any price NOTE The LD100 NTSC only version operates properly with 50Hz 625 line component or RGB sources INSTALLATION INSTRUCTIONS Figure 2 Unpacking Remove the LD100 LD100U from the shipping container and examine it for any signs of shipping damage or missing items check inventory list on page 5 All shipping materials should be saved if the unit is to be moved or should need to be returned for service or repair Installation The LD100 LD100U is designed to be placed on the table or rack mounted If the rack mounting installa tion kit is to be used the rack mount ears are installed by removing the 4 screws retaining the wood side panels and installing the rack mount ears using the 3 screws as shown in Figure 2 Remove the four feet from the unit When installing the LD100 in a rack it will be necessary to support the LD100 LD100U by using rack support rails supplied by the rack manufacturer Do not support the LD100 LD100U by the rack mount ears alone Ventilation The LD100 LD100U will require that air flows freely in both the
14. echnology companies Contributing in Optimizing NTSC Performances The following list represents those that have recog nized the value of Faroudja s solutions to imaging 1988 MONITOR AWARD problems and pay for the opportunity to incorporate for this technology in their advanced video products as Excellence in Engineering of December 1993 NTSC Encoders and Decoders Canon Microtime Conrac Mitsubishi 1989 BM E AWARD General Instrument NAC for Grass Valley NEC Excellence in Engineering Hitachi Sanyo ive as 1991 Technology Executive of the Year n i f Cable TV Business Matsushita Panasonic Toshiba et 1991 EMMY Awards and Achievements from The National Academy In just the last four years Yves Faroudja and of Television Arts and Sciences Faroudja Labs have garnered worldwide recognition for and a number of industry awards These honors are Techniques for Minimization of NTSC Artifacts notable for several reasons They are in response to Through Advanced Encoding Techniques the significant impact that Faroudja s technology has made on the serious improvement of video quality 1992 VIDEO GRAND PRIX AWARD They are also a reflection of his long term dedication Audio Video International to continually improving and optimizing the perfor u mane othe NTSC videa Toma LD100 Line Doubler Advanced Technology Award In chronological order these awards and their spe cific focus are listed including an EMMY in 19
15. en Blue Horizontal Sync and Vertical Sync For monitors projectors with a 4 wire input use Red Green Blue and Composite Sync outputs The monitor projector will be terminated at 75 Ohm either internally or by switches located on the moni tor projector LINE DOUBLER OPERATING INSTRUCTIONS For reasons of clarity this technical overview has been written specifically for the LD100 This description applies as well to the LD100U with the following exceptions 1 The LD100U accepts PAL and NTSC signals and switches automatically to the proper standard 2 Tint control is not operational with PAL sources FARUOUDJA sisrEM cone The LD100 Control panel Selecting a push button control lights the adjacent LED to indicate activation or selection of that partic ular function 1 Power ON OFF Press the button and the LED lights green to indicate POWER ON When the LD100 powers up it is automatically set to oper ate just as it was when it was last turned off The Detail Enhancement circuits are automatically engaged at turn on Power ON OFF OFF Another push on the switch and the power is cut off extinguishing the green LED The Freeze Circuit is automatically disengaged if in use upon turn off INPUT SELECTION SWITCHES 4 2 Video refers to any composite NTSC video input e g VCR s laserdisc players cable boxes etc Press to select the Video input 3 Y C Y C refers to any Super VHS S VHS or Hi 8
16. ferent mechanisms Horizontal resolution is a function of bandwidth frequency response of the circuitry while vertical resolution is a function of the scanning fre quency the number of scan lines in each picture Given these mechanisms and the average size picture tube being 8 10 they designed the 525 line broadcast stan dard so that viewers would not see the scan lines when watching TV They had no idea that someday people would be projecting home theater video images with diag onal screen sizes of 10 and more Based on those NTSC parameters using a 10 ft diagonal screen would require the viewer to be located more than 45 ft from the screen to see the picture as it was intend ed without scan lines Unfortunately today s large screen installations have scan lines that are quite visible espe cially with some ofthe latest high resolution monitors and projection televisions The LD100 eliminates this problem by scan doubling or digitally doubling the 525 lines to become 1050 lines The result is the elimination of visible scan lines The image produced by the LD100 is clearer continuous and virtually film like SECTION C The LD100 Bandwidth Expansion Circuitry SHARPENING OF THE IMAGE DETAILS There is a major limitation with most contemporary NTSC program sources lack of frequency response The best video Sources such as satellite dish reception and laserdiscs can provide acceptable resolution 400 plus lines of hori z
17. formation is worse than doing nothing at all because the visual result is a picture of lesser quality To achieve film like quality a great deal more is required than just doubling the lines The block diagram below provides a sim ple view of Faroudja s multi faceted solution for perfect pictures The technical and visual benefits of each of these special circuits are explained more fully below VIDEO In Y IN eee ROUT GOUT BOUT Loo SNE OUT WGA our BANDWIDTH LD100 BLOCK DIAGRAM SECTION A The LD100 SuperNTSC Decoder Elimi nates COLOR BLURRING The engineers of the 1940 s and the 1950 s before and during the development of color broadcasting had no idea that video images would one day be blown up as large as they are today They therefore designed the color section of the NTSC standard with severe bandwidth restrictions This causes colors in various video images to blur and smear These effects are further aggravated by storage media such as VHS tapes that further degrade the chroma or color signal e g note how deep reds smear on VHS tape images The Faroudja LD100 utilizes proprietary circuitry to recre ate and further correct color details Technically this is accomplished by making use of the sharper black and white transitions to develop a correction signal that is then used to sharpen the color transitions The result is colors that are restored with sharp details and video
18. g Projector Monitor not turned on Projector Monitor not connected correctly Bad video cable Unit in freeze mode Check brightness and contrast levels Colors bleeding Check LD100 termination Check projector monitor termination Contrast set too high Color set too high Picture not stable Check interface cables Sync cables are swapped or not connected Input source not selected correctly Check input terminations Set Sync to STD Projector Fast Slow Horizontal time constant Should be set to fast Incorrect colors Tint in manual mode Defective output cable RGB cables are swapped Check projector monitor termination Input source not selected correctly No burst on input RGB or Y R Y B Y Inputs not terminated Picture washed out Composite input not terminated NOTE To make sure that an input source is not the cause of a problem for a composite source turn the ter mination switch off and connect a composite monitor to the composite input Loop input For a R G B input source turn the three termination switches off and connect a R G B monitor to the R G B input Loop input To make sure that a projector is not the cause of a problem connect a VGA monitor to the 15pin VGA output connector and check the display to see if itis correct and if the projector is the problem If the monitor display shows the same problem as the projector display then the line doubler has a problem and you should contact our Techn
19. ical Support Department 12 APPENDIX A LD100 LD100U Remote Control Operation Overview Remote control of the LD100 LD100U Line Doubler is provided by an RS 232 serial interface connector located on the rear panel of the unit A external controller such as a computer or integrated system controller with an RS 232 interface may be used to control all user accessible functions of the Line Doubler RS 232 controllable functions include Video Y C S VHS RGB Component YUV Brightness Contrast Color Tint Noise Reduction Detail Level Auto Tint Digital Filter On Off Freeze On Off Echo On Off Help Status and Return to Factory Preset Communication Settings Communication with the LD100 Line Doubler is accomplished by setting the following conditions 9600 No Parity 8 Data Bits and 1 Stop Bit The fac tory BUAD rate is set at 9600 but rates of 1200 2400 and 4800 are also available Baud Rate Selection To change the RS 232 BAUD rate remove the top cover of the LD100 Line Doubler A 4 switch Dip switch is located on the front panel Set the switch es from the table shown below If the BAUD rate is changed the LD100 MUST be powered off and then on for the new BAUD rate to take effect DIP Switch Settings Rate 1 2 3 4 1200 ON ON ON ON 2400 OFF ON ON ON 4800 ON OFF ON ON 9600 OFF OFF ON ON Factory Preset INSTALLATION Interface to the LD100 Line Doubler is done by us
20. ing a 3 wire interface Interface schematics for the IBM PC AMX and CRESTRON controllers are shown to the right 13 CABLE SPECIFICATION Computer Interface LD100 LD100U DATA TERMINAL or Line Doubler IBM PC DB25 MALE DB25 FEMALE RxD 2 2 TxD TxD 3 3 RxD GROUND 7 7 GROUND 4 RTS L 5 CTS 6 DSR L 20 DTR CABLE SPECIFICATION AM X AXC 232 Interface LD100 LD100U AMX AXC 232 Line Doubler INTERFACE DB25 MALE RxD 2 3 TxD TxD 3 _ 2 RxD GROUND 7 1 GROUND CABLE SPECIFICATION CRESTRON CNCOMH 2 CNMS Interface LD100 LD100U CRESTON CNCOMH 2 Line Doubler INTERFACE DB25 MALE RxD 2 3 TxD TxD 3 2 RxD GROUND 7 5 GROUND APPENDIX A Programming the LD100 Command Line Variable Adjustment Commands The LD100 is programmed by means of a Borb Adjust Brightness Level Command Line which is an ASCII string of up to This command is follow by an integer 255 characters that contains one or more individual between O minimum and 255 maximum instructions to the LD100 The Command Line Example B1 or B12 or B123 ect offers the best compromise between manual opera
21. last known settings when the unit is power up The only exception is the Freeze function The Freeze function will be set off during the power up cycle When a command is received via the RS 232 only those functions are placed in the remote mode If a pot function is set via the remote it can be returned back to local mode by adjusting that function on the front panel This is accomplished by creating a win dow around that function when in remote mode If that function is turned beyond the window setpoint that function is returned to local mode and becomes active again 15 Freeze Digital Filter Auto Tint Input Select Detail Level Noise Level Tint Level Color Level Contrast Level Brightness Level Header Command String Examples Commands can be as simple as LD100 B150 CR to complex as LD100 D240 N20 C150 B102 V T0 A1 FO CR Note CR Carriage Return OxOd or ASCII 13 APPENDIX B VGA Connector Pinout Pin Function 1 Red Video 2 Green Video 3 Blue Video 4 Not Used 5 Ground 6 Red Return Ground 7 Green Return Ground 8 Blue Return Ground 9 Composite Sync 10 Composite Sync Return Ground 11 Not Used 12 Not Used 13 Horizontal S ync 14 Vertical S ync 15 Not Used APPENDIX C 15 PIN D VGA CONNECTOR FRONT VIEW Figure 8 Cable Lengths and Distribution Amplifiers To aid in achieving the bet results from your installa tion we suggest the following minimum standards for
22. n without adding digital artifacts is in its unique ability to detect motion and interpolate correctly to fill in the blank lines The Faroudja LD100 does this better than any other line doubler thanks to its proprietary patented circuitry It is the only line doubler in existence that can detect the dif ference between a film image that has been transferred to video or video image that emanates from a video camera After detecting the image type the LD100 adjusts its algorithm to compensate accordingly This is critical because today s home theaters are primarily used to show films that were transferred to video whether on tape laserdisc or off the air virtually all prime time pro grams are film transferred to video The inability of other line doublers to detect motion correctly is what causes most of them to be unwatchable due to digital artifacts The LD100 offers sharper uniquely clean artifact free film like images without visible scanning lines Historically speaking again electrical engineers back in the 1940 s knew the resolution of a picture tube depends YIDEO m TUNER WO RGB SYNC RYT Y podre p peg BY SAME TE LASER DISC aue an PLAYER LINE DOUBLER IDES e PROWEC TOR OR i MONITOR NIDEO SWITCHER COMPUTER DISPLAV TYPICAL LD100 SYSTEM UTILIZATION on two dif
23. ng the product to incompatible equipment or power This warranty will also be void if the product is not returned to FAROUDJ A Laboratories in the original shipping container The purchaser s sole remedy with respect to the breach of this warranty is for the sell ing distributor to repair or replace at its option those products which the selling distrib utor determines to have breached this warranty within the specified period Any claims under this warranty should be made by telephone or in writing to the selling distributor or FAROUDJ A Laboratories No products should be returned to the selling distributor or to FAROUDJ A Laboratories without its prior consent and then only with freight prepaid FAROUDJ A Laboratories will prepay the return shipment Specifications and price change privileges are reserved THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING WITHOUT LIMITATIONS ANY IMPLIED WARRANTY FOR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE FAROUD A Laboratories 750 Palomar Ave Sunnyvale California 94086 Tel 408 735 1492 Fax 408 735 8571 18
24. ontal resolution Other more common sources however such as VHS tapes 230 lines are clearly deficient The problem is compounded when one doubles the scan lines and performs other signal processing The lack of high frequency detail becomes very obvious with almost all sources The resultant picture is free of scan lines but dull with a serious loss of definition The solution is to expand the high frequencies without producing annoying and pic ture degrading artifacts The bandwith expansion circuitry in the LD100 is excep tionally sophisticated using Faroudja s double differentia tion techniques to sharpen the edges of both horizontal and vertical details The result is a sharply detailed line doubled image that appears crisp and three dimensional with no visible negative side effects This process can effectively double the bandwidth and therefore the resolu tion of the incoming signal FAROUD A LD100 APPLICATIONS While the techni cal accomplishments of the LD100 represent years of intense research and development its use is straightfor ward and direct The block diagram above illustrates a typical home theater system configuration and shows how the LD100 would be inserted in the signal path Many entertainment sources benefit greatly by the LD100 s unique attributes laserdisc VHS video S VHS video cable TV broadcast TV etc The LD100 has proven to be an invaluable tool in other presentation disciplines where imag
25. ry improves the sharp line and edge transitions making for clearer more vivid video images This is accomplished with the two controls working in tan dem without adding video noise or digital artifacts which could otherwise degrade the picture 10 11 12 13 Noise Reduction After setting the detail level 11 the noise reduction control is then used to remove any residual noise that may be added during the Image Sharpness process Detail Level To set the detail level start full counter clockwise and add detail until the edge transitions just begin to sharpen Digital Filter The Digital Filter eliminates compression artifacts generated by video sources transmitted via a digital compressed path and should not be used with conventional video sources Freeze On Off Press to capture the current picture displayed on the screen Press again to return to normal active video The freeze mode digitally captures the incoming video signal and holds it for critical viewing and adjustment This feature allows you to optimize the LD100 pic ture controls on a still constant image of your choosing MII is a registered trademark of Panasonic Betacam and Betacam SP are registered trademarks of Sony TROUBLESHOOTING Problem No power light No picture Solution Unit not turned on Unit not plugged in Fuse blown No power at plug Video source not selected No video source connected or operatin
26. signal to other video devices 75 Ohm Sync Input Loop BNC Composite Sync Input Loop Sync Input BNC Composite Sync Input Red Output BNC Red Output 714mV Green Output BNC Green Output 714mV Blue Output BNC Blue Output 714mV Horiz Sync Output BNC Horizontal Sync Output 4Vp p 31 5KHz 31 2KHz Vert Sync Output BNC Vertical Sync Output 4Vp p 59 49Hz 50Hz Sync Output BNC Composite Sync Output 4Vp p VGA Interface Output VGA Standard using Positive TTL Sync Levels See appendix B for pinout information Remote Control Interface See appendix A for interface diagrams Power Input 100 250 VAC 50 60Hz 60W PRORIECTOR z rgectrqk Figure 4 Interface Figure 4 diagrams the installation of the LD100 using inputs from 1 A composite source such as a Laser Disk Player VCR or TV Receiver 2 A Y C input such as a S VHS VCR 3 An RGB input with sync on green or a Component input such as a Camera or Beta SP recorder with sync on Y If sync on green or sync on Y is not available then Sync can be interfaced using the Composite sync input All input with the exception of the Y C input have selectable 75 Ohm input termination switches These switches are to be in the ON position unless the LD100 is being used in a looped configuration Termination is then located at the last unit in the loop only Note The diagram shows a 5 wire connection to the monitor projector i e Red Gre
27. signals are buffered and then sent to the rear panel outputs to both the BNC and VGA interface connectors When using the RGB or Component inputs Sync is derived from the G or Y input signals unless sync is provided to the Composite Sync input The Composite Sync input will override the sync from the G or Y inputs The sync signal then feeds the LD100 systems clock generator and is used as a reference to generate Horizontal S ync Vertical Sync Composite Sync Inventory List LD100 Digital Scan Converter Installation Operation Manual Warranty Card Power Cord Rack Mount Ears Rack Mount Screw Kit FA ON H HH gH Caution Notes Do not connect the LD100 to a Monitor Projector not capable ofthe correct scan rates 31 5KHz High Voltages are present inside Opening the unit will void all warranties No user serviceable parts inside TECHNICAL HIGHLIGHTS LD100 TECHNICAL HIGHLIGHTS The LD100 is far more than simply a line doubler It is a truly unique product in the world of high performance video The LD100 is actually a complex image processor that consists of three distinct components all utilizing patented Faroudja technologies and engineered into one chassis the SuperNTSC decoder the Faroudja proprietary line doubler and Faroudja s innovative bandwidth expansion circuit that allows for the sharpening of image details Line doubling by itself is simple and inexpensive to achieve But simply doubling the lines of in
28. t spaces are ignored and may be used All com Dord Adjust Detail Level mands strings are terminated by a CARRIAGE Thi is foll int RETURN 0x0d Commands may in entered in any conten S TOR oy amim iger between O minimum and 255 maximum order as the user see fit Example D1 or D12 or D123 ect Commands Switch Commands Source Input Select Commands Aora DigitalFilter On Off This command is followed by an integer of Vorv Select Video Input Mode torott and 1 foron This command is a single character command Forf Freeze Mode On Off Yory Select Y C Input Mode epe by an integer of This command is a single character Sr ere i command Other Commands Rorr Select RGB Input Mode Eore EchoFunction This command is a single character This command is followed by an integer of command 0 for off and 1 for on Xorx Select Component YUV Mode Porp This command is a single character com This command is a single character mand This will return the LD100 to it s command factory preset condition 14 APPENDIX A ST orst This command will return a string showing the current settings of the LD100 Example LD100 B HH C HEHE K THE T HAH N HHH D HE V T1 AL FO Y R X HELP orhelp This command will return a list of commands used for the LD100 Line Doubler LD100 Local Remote Operation The LD100 stores all of it s settings in a Non volatile ram and will return to the
29. that the signal may be used by other devices A selectable 75 Ohm ter minator switch is provided and should be in the ON position if the input loop is not used The Y C input uses a standard 4 pin S VHS connector This input is not available for a looped operation and is termi nated internally The RGB and Component inputs use BNC connectors As with the video input these inputs are loopable to other devices Selectable 75 Ohm terminations are provided If the looped inputs are used these cables should be kept short under 6 in length or a video distribution amplifier should be used This allows the LD100 to keep the highest signal bandwidth possible without having the high frequency being attenuated in a long cable Output from the LD100 is provided on six BNC con nectors as well as one 15 pin D VGA connector The BNC outputs provided are Red Green Blue Horizontal S ync Vertical Sync and Composite Sync Interface to monitors projectors can be ofa4 or 5 wire connection Note 4 wire meaning Red Green Blue and Composite Sync or 5 wire meaning Red Green Blue Horizontal Sync and Vertical Sync There is no sync present on the Green output The LD100 is capable of driving a monitor projector using the BNC outputs as well as a VGA monitor using the 15 pin D connector at the same time The LD100 features a remote control interface that will allow control of all line doubler functions The remote control uses a 25 pin female
30. ts the foreground white level First set the BRIGHTNESS level as above then pull out and rotate the CONTRAST level clockwise start ing at the full counter clockwise position until the white areas of the picture are clearly obvious 8 Color level With the Color control pressed in the LD100 uses its internal AGC Automatic Gain Control to set the color level Pull the knob out and starting from the full counterclockwise position rotate clockwise for increased color sat uration This is a subjective setting there is no right or wrong Simply adjust for the most pleas ing color level 9 Tint Also known as Hue or Phase pull the knob out to adjust to your personal taste partic ularly in flesh tones Adjusting the tint control shifts the picture towards the green or red areas ofthe color spectrum Tint is only active in the video or Y C input modes With the control pressed in the LD100 is in the Auto Tint mode The Auto Tint mode is achieved by using internal phase comparison techniques to automatically display colors as intended 11 IMAGE SHARPNESS CONTROLS 2 The two rotary style Image Sharpness controls NOISE REDUCTION and DETAIL LEVEL work together to sharpen edge transitions for a punchi er picture The proprietary bandwith expansion cir cuitry contained in the LD100 is critical to its spec tacular performance Typical line doublers produce a flat soft picture The LD100 s Image Sharpness cir cuit
31. ync 700mV Luminance Y C 4 43 Non Composite 700m Vp p Y 286mVp p C Burst 700mVp p Non Composite 1Vp p Composite Y 1V w Sync U 700mV V 700mV Negative gt 4Vp p Composite 525 Line Progressive Scan 1050 Line per Frame Non composite Positive 714mVp p 59 94Hz Negative 4Vp p 75 Ohm 31 5KHz Negative 4Vp p 75 Ohm 31 5KHz 59 94Hz Negative 4Vp p 75 Ohm 15 Pin D Connector VGA Standard 625 Line Progressive Scan 1250 Line per Frame Non composite Positive 700mVp p 50Hz Negative 4Vp p 75 Ohm 31 2KHz Negative 4Vp p 75 Ohm 31 2KHz 50Hz Negative 4Vp p 75 Ohm 15 Pin D Connector VGA Standard Low Pass Filter 3db 11MHz Low Pass Filter 3db 22MHz Low Pass Filter 3db 6MHz Low Pass Filter 3db 12MHz 1 Field 2 5 Lines NTSC 1 Field 3 5 Lines PAL 100 250 VAC 50 60Hz 60W Auto Ranging 2 Amp Slo Blow AGC 2A 17 W x 3 5 H x 21 D 43 1cm x 8 9cm x 53 3 cm 22 lbs 9 8Kg 19 48 26cm with rack mount ears Design and specifications are subject to change without notice WARRANTY INFORMATION All FAROUD A Laboratories products are warranted to the original purchase against defective materials and workmanship under normal use and service for a period of one 1 year from the date of shipment This warranty shall be of no force and effects if mod ifications have been made by the purchaser or its agents or employees or if damage results from connecti
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