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1. RS 232 in and out AC power i and out Screen locking Fever 1 of 2 Circuit breaker VGA input Lamp access door LCD up down door ad jistm ent VN 3820 VA display bottom view Top cable channel Vertical cable channe Side bolt holes Lower cable channel with end cap in place VN 3820 VA top view 1 2 Your Safety Is Important It pays to read these safety warnings It won t take very long There are high voltages inside the display There are places where you can get a heat burn from hot parts or eye damage from looking at the ultraviolet source Be careful The displays units were designed with the user s safety in mind However as a service techni cian you are probably goingto go deeper into the unit than an ordinary user would There are safety warning on stickers in various places in the display They are reproduced on the facing page for reference Here are some things you should be aware of that relate to safety things to keep in mind while working on the displays e Thedisplays need at least 8 200 mm of clearance at the bottom This is for air circulation and to allow the air filter and lamp access doors to open However for testing purposes you can set the unit on a table or work bench The small rubber AAA feet give enough dearance to provide some air flow through the filter Thereis no electrical interlock on the screen Opening the screen does not turn o
2. FAN off LAMP ON off 3 2 Identifying Image Problems Image problem include pictures that are too dim out of focus keystoned too large or too small does not reach the each edge of the screen not centered Or the individual pictures look right but the displays in a banner don t match each other If you see no image at all no picture go to the previous section and start there Image problems can be put into several broad categories Image Problems Possible Cause s Solution s Picture too dim dark Excessive dirt or dust on the mirrors Clean mirror lens screen p 2 4 lens screen or anywhere in the optical path Color balance is incorrect Check Color Balance values set to 031 and 007 in all units perform color basan8ce procedure Color Balance is described in the WN 3820sVA User s Guide Old lamp some lamps become dim Change the lamp near the end of their useful life Input Levels is incorrect Adjust Black Level and White Level using black and White images from the source Procedure described in User s Gude Image too large or small Projection lens is misadjusted Turn lens to adjust image size 4 2 6 Picture not centered leaving black LCD is misadjusted Use LCD adjustment screws on edges bottom of display for up down and rotation Use screw inside near far for left right p 4 2 6 Picture keystoned wider at top or Large mirror needs adjusting Large mirror is adjustable either with a bottom he
3. For this reason the adjustment screws are locked down with a thread locking cement The light from the lamp has a broad beam It is not necessary to center this beam exactly on the LCD It is only necessary that the beam hit all four corners of the LCD Thelight path needs adjusting if e there is a dark shadow with soft margins at the edge of the image e movingthe LCD forces the internal geometry test pattern into a shadow area before it reaches the mullion edge of the screen TheLCD not the light path needs adjusting if e there is a dark shadow with sharply defined margins at the edge of the image e movingtheLCD with the internal geometry test pattern makes the image slide behind the screen edges mullions There are two adjustments for the light path e Moving the condenser lens moves the light path up and down e Moving the second mirror moves the light path left and right The first mirror is fixed Both of these the condenser lens and the second mirror are inside the optical engine It is not necessary to open the engine or remove it to make these adjustments To adjust the light path 1 Remove the hood p 5 2 2 Turn on the lamp 3 Select the internal White T est Pattern MENU gt Misc Controls gt Test Patterns gt ENTER gt White gt PREV MENU T he screen should now be white except for the shadowed areas N CAUTION In both of the following adjustment be sure you are t
4. Auto Automatically adjusts the display s Black Level to the incoming video from the PC or MAC Always use this option rather than adjusting this level manually All Raises or lowers all three RGB levels together Level Sample Level show the current internal setting of R G and B Red 127 254 Sample shows the levels in bits detected in the incoming signal 000 is Green 126 255 black 255 is maximum white Blue 131 255 Position Moves image left right up down Wraps at the end so image will jump to the other side Color Balance a In this menu the up down arrows move the highlight through both columns and the left right arrows change the selected value The Wht White range is 000 031 and the Gry gray range is 000 015 Wht white values 000 031 Gry gray values 000 007 Left right arrows change all three values brightness of White or Gray Color Balance Left right arrows change Red values of White or Gray Color Balance Lamp Hours 2347 Shows number of hours lamp was on since last Lamp Hours Reset System Hours 2534 Shows number of hour system electronics module has been used Reset Lamp Hours To reset Lamp Hours use left arrow to highlight Yes then press ENTER Yes No New menu below asks for confirmation Was Lamp Changed Yes No To confirm Lamp Hours reset use left arrow to highlight Yes the press ENTER ID The Group and Unit numbers are h
5. 3 Troubleshooting 3 1 3 2 3 3 3 4 Identifying Power and Startup Problems Identifying Image Problems Discussion of Operation 3 3 1 Meaning of LEDs Troubleshooting Decision Tree 3 1 Curtain controls and of course the power source Identifying Power and Startup Problems If you have no image this is the place to start Check the LEDs first Check Test Patterns and Check the LEDs first You can usethe form in the Reference Section to record the state of the LEDs and lots of other information You can use this information for your troubleshooting records Or you can fax it to Clarity if you need technical support If the screen is black and no picture shows use the remote and press MENU If you don t see a menu check these things AC power The circuit breaker switch on the bottom should be lit LEDs Arethe 12 and 5 volt LEDs lit If they are not it is probably a power supply problem LEDs Is the Ballast Power LED lit If not change the ballast supply LEDs Areany of then flashing See the LED charts for clues p 3 8 Lamp Do you need to change the lamp If the Lamp LED is out change the lamp Ribbon cable If the ribbon cable is not connected properly there will be no picture and no menus If you can see a menu when you press MENU on the remote check these things e Picture Maybe the picture from the computer is black If there is no signal coming from the computer or if the source is in
6. 4 1 1 Correcting Keystone Problems 4 4 4 1 2 Adjusting Size and Centering 4 6 4 1 3 Adjusting the Light Path 4 8 4 2 Functional Tests in the Field o o o o ooooo 4 10 4 2 1 Specifications for Optical Defects 4 12 Replacing Parts eeeeeeeeeeeeeeeeeeeeeena 5 1 5 1 Where Everything IS ee eee ee ee da 5 2 5 2 Two Wiring Diagrams sey sues era 5 4 5 3 Replacing the Power Supply eeeeeeee ee ee nee oo 5 6 5 4 Replacing the Lamp Ballast o ooooocooooo 5 8 5 5 Replacing the Electronics Module 5 10 5 6 Removing the Optical Engine see eeeeeee nee ee 5 12 5 7 Installing the Optical Engine se eeeeeeee nee ee e 5 14 5 8 Power Entry Repair 2 4 22 40a aaa 5 16 5 9 Check Lists for Closing Up ooooooooooo 5 18 Reference Section 00 cece eee eee eee 6 1 6 1 Wiring Diagrams eeveeeee ee eee den weaned 6 2 6 2 Calculating Lamp Life re cara eu Gwar e ts wees es 6 5 6 3 Service Repair Forms eeeeeeeeee eee eee eee 6 6 6 4 Men s art Aa AAA 6 9 6 5 LEDS Parana toda atte wierd he ate eee ete 6 15 6 6 Connections Interlocks and Lockout 6 16 6 7 Firmware Installation and Upload 6 18 1 Basic Information You Need to Know 1 1 1 2 1 3 1 4 1 5 What This Manual Covers Your Safety Is Important Removing the Scre
7. loss of profits loss of use or for any other incidental consequential indirect or special damages or for contribution or indemnity claims however caused Clarity s liability shall be limited to actual direct damages not in excess of the amounts paid to clarity by buyer for the product These limitations will apply to all claims including without limitation warranty contract indemnity tort including negligence strict liability or otherwise Table of Contents Basic Information You Need to Know 1 1 1 1 What This Manual Covers 0000 eee eee eee 1 2 1 2 Your Safety Is Important ee eeeeeee ee ee nee eis 1 4 1 3 Removing the Screen and Doors 22222 2220 1 6 1 4 How to Open the Service Menu oooo ocoocoooo 1 8 15 Aboutthe Remote Control o ocoooooo o 1 10 Regular Maintenance Can Prevent Problems 2 1 2 1 Replacing the Lamp and Air Filter 2 2 2 2 Cleaning the Screen Lens and Mirror 2 4 Troubleshooting eeeeeeeeeeeeeeeeeeeeeen 3 1 3 1 Identifying Power and Startup Problems 3 2 3 2 Identifying Image Problems ooooooccccccoo o 3 4 3 3 Discussion of Operation sou Cored dow rer 3 6 3 3 1 Meaning of LEDS urraca 3 8 3 4 Troubleshooting Decision Tree 0 00 0 3 10 Adjusting the Image o oooooooooooo o 4 1 4 1 Moving and Aligning the Image sseeeeeee nee 4 2
8. place to start Start turn on circuit breaker switch Circuit no he Breaker lit yes yes no Replace power supply yes flashing Close lamp Interlock door or check LED lit door s interlock switch yes steady flashing wall Standby it stops LED lit P yes yes steady steady Press ON switch Ballast no Power LED on yes 3 10 Plug it in Socket has power Correct voltage Replace display s circuit breaker switch Fan rotor is locked change fan Replace Ballast VN 3820 VA Troubleshooting Tree Part 1 of 2 Check wall outlet s circuit breaker Lamp is overtemp Temperature LED flashing LCD is overtemp Replace lamp flashing yes no Lamp Temperature LED LED on yes flashing Everything seems OK go to next page VN 3820 VA Troubleshooting Tree Part 2 of 2 From previous page Turn off Test Test Patterns Patterns OFF Test Turn off Patterns Test OFF Patterns is black is white has picture Picture is OK Curtain no too dark Everything seems to be OK Adjust Clean Black Level mirror White Level lens Usethis decision tree carefully It does not list e If unit gets power via loop thru from every possible cause of every problem previous unit previous unit has broken For instance if the unit s circuit breaker
9. power Supply an ee ee 5 6 prev menu button 2n2 2er ee 1 10 problems identifying 00 e eee eee 3 2 PrOCOMM ii 2s ibe Ae ee ee ee 6 19 re installing the hood eee eee ee 5 2 recall settings ooooooooommommm 6 14 remote control 1 2 2 0 00 eee ee eee 1 10 remote LED cti de eek hace ead Sete ate DA 3 9 6 15 removing the hood 00 e eee ee eee ees 5 2 removing the screen 0 cee eee ee 6 17 repair TOrMS ee et eee en pe ee 6 6 replacing firmware 0 ec eee eee eee 6 18 replacing parts 000 seen ee 5 2 replacing the hood 22222222 5 2 Reset Lamp Hours 0 00 e eee eee eee 6 11 reset settings eeeeeeeeeeee en ee 6 14 restrike counter nananana nnana rnanan 3 7 6 26 A i a ate aa aE o aa a 6 16 RS23 Z iria ins id tii ea 6 16 commands Mi a 6 13 global eseas 2 anne 3 9 6 15 IN er ee Peiner 3 9 6 16 TA een Bees een eh 3 9 6 15 OUT ee ne de tage ee ee 6 16 O A HONG nade Saat eh st thac AE 1 8 6 14 RAD Cut a ato iii 6 16 Salety una A en re 1 4 6 17 Save Recall and Reset 2222 cc nn 6 13 scratches a waere ee ie ea oe 4 12 SCIEEN nen ee a ay ee a 6 17 blemishes u ee a E 4 12 A scil ge gr ee ek la Se eta Aige i 2 4 removing u rise are el 1 6 6 17 repl acing un nae ee La ee 1 6 scratches 2 ia ais aaa 4 12 A a ee We a be 6 19 Serial Status 2 222 oo con 1 8 6 14 service fo
10. see the screen at the same time you make the adjustment If you can t get to the back becausethe units are installed you can make the adjustment from inside e Usethe internal Geometry test pattern e Remove the screen e Reach behind the bottom of the mirror At the center feel a knurled knob about 112 4 mm in diameter It is easiest to reach with your left hand e Rotate this knob It is the same adjust ment as the hex screw e Close the screen and check the results e Continue this process until the bottom and top of the image are the same width within one pixel when the screen is closed The keystone adjustment only corrects for images where the bottom and top edges are not the same length There is no adjustment for adjusting the relative lengths of the right and left sides Mirror adjustment knob behind mirror Mirror adjustment knob Mirror adjustment screw accessible through hole in rear of display 4 1 Moving and Aligning the Image 4 1 2 Adjusting Size and Centering The LCD is adjusted moved with three screws that are all accessible without removingthe screen The two on the bottom move the image up and down and tilt it The one inside next to the fan moves it left and right If the top and bottom of the image are not the same width go to the previous section to correct this first If the image has a sharply defined black area on any edge it may mean that the LCD or the lens needs adjust
11. IR sensor is not mounted on tope of the power supply O Ballast is secured with screw at bottom O Ballast has two cables connected on top plus two ground wires connected to screw Check list after screen is closed O Screen secured at bottom with three tabs O Screen top all the way closed so latches are engaged O Screen lock levers are pushed up and screwed in place so they don t accidentally fall down O AC powe input cable connected O AC power loop thru connected if applic able O Computer data input cable connected O RS232 In and Out cables connected If applicable O Cables dressed in cable clamps O Lower cable tray door closed and locked if applicable O End caps in place on end cable trays O Screws hold whole display to lower support rail 6 Reference Section 6 1 6 2 6 3 6 4 6 5 6 6 6 7 Wiring Diagrams Calculating Lamp Life Repair Record Service Repair Record LEDs Connections Interlocks and Lockout Firmware Installation and Upload 6 1 Wiring Diagrams Ground 1 Wire Green Yellow AC Power Entry Module VN 3820 VA Wiring Diagram AC Power Loop thru Module 120 240V Hot Brown AC Power sal E 120 240V WIG Neutral Blue Chassis 120 240V Hot IR Sensor Brown LCD 5V Black Fan Black 5V Data Red 5V 5 12V 30 pin Gray Yellow Red Red 350V Flat Cable Black Black Black LCD Temp Blue White White Sensor 5
12. Lamp access door opened 1 4 How to Open the Service Menu The Service Menu is hidden from ordinary users You may need to use this special menu during servicing Test Patterns are available in it but they are also available in the Misc Control menu The Service M enu is hidden from the end users because it contains a few items that can cause trouble if not used correctly To get to the service menu e With the remote control press MENU e Highlight About and press ENTER This opens a box with the manufacturer s name and address and other information used by manufacturing e Press the following arrow keys in the order given Up Up Right Left Down Now you should seethe Service Menu If you don t press PREV MENU then ENTER and start again on the arrow sequence Service M enu items Test Patterns opens thetest patterns menu which is also available from theMisc Control menu Gamma Disable bypasses the color balance values and other gamma values It does not reset them to default values There is usually no reason to use this feature Temp Control enables when it has an x the measured temperatures LCD and lamp to turn off the lamp when either one exceeds its High limit This is currently not functional Serial Status opens a menu that displays six decimal numbers that count events from the UART Universal Asynchronous Receiver Transmitter T hese values are not reset to zero until AC power is cycled off an
13. T his goes to the fan motor Unplug the connector with 2 black 2 red and 2 brown wires This goes to the LCD and lamp temperature sensors Theflat gray cable has latches on each side of the connector Push out on these to release the connector and lift it off Release any wires from the clips alongthe front of the chassis Leave the large black cable in the clips In the lower cable tray remove three black screws holding the electronics module in place Push the electronics module back slightly and lift it out On the bottom disconnect the two ground wires Notice how they come through the connector opening 12 Disconnect the remaining cables on the left and right ends of the electronics module Installing the electronics module 1 Thread the ground wires from theDC Ballast and the Ballast Control cables through the slot for the Ballast Control Cable Secure them to the screw on the bottom corner of the electronics module Install all the connectors expect the ribbon cable and fan connector Look at the bottom of the electronics module and notice the tabs at each end of the back Slip the electronics module into its place Push it to the back and then bring it forward to engage the tabs Install the three screws in the lower cable tray to hold the electronics module Connect the ribbon cable Pressing down on it should bring in the two latches at each end Check that
14. To unzip all files in 573 0001 REV G EXE to the specified folder press the Unzip button Unzip To Folder Run WinZip Ic Close V Overwrite Files Without Prompting Unzip About Help PEPER Licensed to Registered 3 When prompted with the screen above leave the unzip folder listed as C 4 Click the Unzip button This will create the following directory structure C Lost scripts 573 0001 U p 573 0001 N caution Do not modify this directory structure The scripts will not work if this directory structure is changed The C Clarity scripts 573 0001 directory will contain files with was or wax extensions The C ClaritwU p 5 73 0001 directory will contain files with the mot extension 5 If you have not done so already install Procomm Plus using the instructions that come with it AN CAUTION Follow these next steps exactly Failure to do this can result in an incomplete firmware upload that cannot be repaired You will have to send the electronics module back to Clarity If you encounter a problem during the upload check the Procomm settings and try again 6 Start Procomm Plus and go to the Options Data Options General menu This is where you will make all the port and protocol settings Jeri aim Een im m ee ee ICES 7 Click on the Data tab and press the Transfer Protocol button to display the following screen Select Set the Current Transfer Protocol to ASCII On slats
15. all the features and procedure for this is in the User s Guide functions are working properly Take a few Thetable on the facing page gives an minutes to check everything thoroughly This overview of the tests The following section helps insure that other problems won t appear 4 3 1 gives the definitions and criteria for after you leave the site passing some of the tests Before you try these tests make sure that the 4 10 Functional Tests in the Field Pattern or Image Passes test if Air is blowing out of the holes just behind the lamp access door Air Flow any Air is also being drawn into the air filter Try holding a piece of paper in front of the filter Is the air filter clean Fewer than 12 pixels are stuck on An on pixel will appear as Pixels stuck on Black internal test pattern anything but black when a black signal is shown Dust may give the appearance of a stuck pixel F han 10 pixel k off An off pixel will Pixels stuck off White internal test pattern ewert ante pee ar sue De Re anything but white when a white signal is shown Geometry oe hi Internal Geometry pattern Tilt or keystoning is less than one pixel Keystoning The image has 3 rows or columns hidden behind each mullion Internal Geometry pattern The outside edge of the two pixel wide magenta stripe is within one pixel of the mullion White internal or external Ea Dirt or smudges More None are visible p
16. at the main circuit breaker switch near the power cord Start Procomm Plus Connect the RS232 serial cable between the PC and the RS232 IN connector on the display Turn on the display using the circuit breaker switch If everything is working you will see the following words in the Procomm character window Power On Reset Copyright 1999 Clarity Visual Systems Executing Application Note The copyright date may vary After this message you will see several trash characters on the screen If you seethis message everything works so far If you don t see this message stop Find the problem Remember the AC power to the Clarity display must be turned on after Procomm Plus starts If the text is all trash check the baud rate and other communications settings If nothing comes back check the selected serial port Check the cable and see that it is properly connected 12 Turn off power to the display with the AC circuit breaker switch If the lamp has turned on automatically turn it off with the remote control Wait for the cool down period to complete and then turn off the power with the AC circuit breaker 13 Start the Clarity upload script by selecting the appropriate script see tables in the T ools Scripts Run menu bar bei Des ip re i E hainm ah Fun aime Binas ee i L i biip ai ill ia CB ELC ke birro iid aa HE mb 14 When Procomm Plus prompts you turn on the main circuit br
17. bolts also have a 2 Phillips slot e SRT 200 a pair of strong magnets is an optional accessory tool to pull screens from the middle of a banner particularl y if the displays are against the ceiling e A magnetic retriever helps to pick up dropped screws e An inspection mirror lets you see in tight places A volt meter is handy for checking voltage levels and continuity M ost of the instructions in this manual are complete on one page You will notice some information repeated in several places This is intentional However the explanation on how to remove the screen and the hood is too long to repeat every time it is needed It is given only once later in this first section It is a good idea to read the parent sections before you try to do something in a subsection For instance read section 3 2 before you try to follow the instructions in 3 2 1 This manual assumes that you are a qualified service person whether or not you have had Clarity Ser vice T raining If you are not a qualified service person read no further get some one who is e the units you are working on are mounted on a wall probably above head height If you have the unit on a table or bench top you will sometimes have to look at the bottom to see the LEDs and reach the circuit breaker switch e you have the User s Guide for this product Some material from that man ual is repeated in this one but not much of it
18. ee ai 6 9 don t see one 222 Herren ernennen 3 2 menu button iia en 1 10 MENUS ISTE iii ideas A ea 6 9 mirror cleaningthe 22220 n seen 2 4 mirror moving the 2 000 e00ee 4 2 4 4 Misc Control see eee eee 3 6 6 11 MON Sl se s des hook talle dio ROSA 6 13 mon sel button 0 02 0 eee ee eee 1 10 Monitor Select 0 0 e eee eee 6 13 mot file extension o ooooooooo es 6 20 mullion definition of o oooooooo 1 2 NO PICTUIC ceci ri ees Re 3 2 Noise o heute pei k en a bn de ete eas 6 14 OT DUO ad ad Bradt Scions 1 10 On bULON aa ae Bate Bi Ae a Scene assa 1 10 opening the hood ee eee eee 5 2 operation discussion of Lee 2222er 3 6 optical defects 0 0 0 ee ee ee ee 4 13 optical defects specifications for 4 12 optical engine INStallING 2 0 5 14 TEMOVING aan aa een de 5 12 QOVOMUN ee SR Er 1 8 6 14 Party nai ta ee heat 1 8 6 14 parts location of 22m nennen ernennen 5 2 Phase Select 0 0 e eee eee nennen 6 9 picture Centeri iio ra Nosed aos Sie Ste 4 6 ulting ss Beetle a ta eh aan 4 6 pixels DOME sa 4 12 4 13 A ee 4 12 4 13 TN 4 2 POSTION iii E See es 6 10 position image changing o o oooooooo o 4 2 position LCD changing of oocoocooccccooo o 4 2 power entry system 00 0 5 16 Power On Reset iiseeeeeeeeeeeeeenenenne 6 23
19. initialization Siri rn ee ie eed 6 17 InputiLevel coca en 6 10 interlock o o o oooooooooo ooo 3 6 6 16 6 17 door OPEN u O 3 6 LED res a anne aunties 3 3 6 15 OPEN ne ebenen But 3 3 temperatur ans are 3 6 invertimage a ee ee 6 11 IR eee ee ibm 1 10 sensor disable ooooooommomomo 6 13 keystone nn sa ltd Edades 4 2 4 4 knurled knob eis go Daan nar Ga RA eee eee 4 4 lamp aul oN bid 3 6 ballast a era 5 8 CHANGING a ee ee 2 2 door interlock oooooo o 3 6 6 17 MOUS esha acd cia ad ot ben eral ache aia 2 2 6 11 A ee O 1 2 2 2 OMLED fe vas eek ew gig Mogh ai 3 3 3 7 3 8 6 15 temperature 00002 3 3 6 17 thermal cutoff oooooo o 3 3 6 17 LCD Centering run a hed ele ACS 4 6 COVE ty la o ee ee oes AR 4 6 ripbbon cable igi a e re 3 2 temperature coin ne 3 3 6 15 UNO cir rate 4 6 EDS ta a etek ei are 3 2 3 3 flashig eriei ee eck ee ee 3 3 3 6 3 8 flickering ceo gn see oe eee a re 3 9 meaning Of ooo 3 8 6 15 steady esi Gia ee oe eee ee g a i 3 8 3 9 lens cleanind erinra Sa en o La gha a 2 4 lens rotating eeeeeeeee nee eee 4 2 light path Heer 4 8 Ma A bla BSc SCG N S 4 12 lists closing amp checking ee e ee ee eee 5 18 e A nerri me 6 16 6 17 TIMOR esa caida ada ld a 3 8 magenta rectangle 2222er rennen 4 2 main ae astra Se Brummen 6 9 manual what it covers oooooo ooo 1 2 MENU Hr
20. lamp a third time If it senses that the lamp is lit the STANDBY LED goes out and all is normal If it does not sense that the lamp is lit the STANDBY LED turns flashes for a third 30 second period Then it stays on without flashing and the unit waits for a manual ON command 6 7 Firmware Installation and Upload Sometimes it is necessary to upgrade the firmware in the electronics module This is how to do it These instructions must be followed exactly AN caution A Caution symbol with an instruction indicates certain areas of this procedure that require special attention to avoid failure Failures can cause an electronics module problem that is not repairable in the field Versions and Directory Structure Firmware Self extracting Subdirectory Product Version EXE Filename Name 573 0001 RevG exe 573 0001 573 0002 RevA exe 573 0002 583 0100 Rev D exe 573 0100 WN 5220 V VN 4020 V WN 5820 V VGA Big Picture WN 5220 S old electronics WN 5220 S D WN 5220 S 300 WN 5220 VIP 300 573 0500 RevC exe 573 0500 new electronics SN 4215 P 573 0400 Rev A exe 573 0400 MN C 573 0300 RevC exe 573 0300 old electronics WN 5240 S D 573 0600 Rev B exe 573 0600 WN 5240 S 300 WN 5240 VIP 300 573 0200 RevB exe 573 0200 573 0650 Rev A exe 573 0650 new electronics VN 3820 VA 573 0900 RevH exe 573 0900 WN 5230 S WN 4030 S S Note The firmware versions listed in this table were the latest at the time this
21. pin 200 1 8 6 16 aligning theimage seen eeeee ren 4 2 Are You Sure menu see ee ee ee ee eis 6 13 Auto Lamp On 000 3 3 3 6 6 12 6 17 auto restrike o o ooooooooooo eee 3 6 Counter cie ico a en Sa eee 3 7 average lamp life oooooooomooo oo 6 5 Ballast ao a bean ih aes 1 2 5 8 ballast power 62 eee 3 8 EEDIA end dl ten A ie Ala 3 3 6 15 banner definition of o ooooooooo 1 2 paud eae ee 1 8 6 13 Black Level oo oooooooooooooooooooo 6 10 blemishes viii aa ghee ee ae an 4 12 blinking LEDS 00000 c eee eee 3 6 3 8 bright pixel 2222222 4 12 4 13 Buzzer Enablen 2 0er 6 11 chart decision ee A ER nn 3 10 check lists u ii din ii 5 18 circuit breaker switch 3 3 6 17 6 24 cleaning products see cee ee ee o 2 4 cleaning the mirror screen lenS 2 4 clearance a en een neh BA 1 4 closing the hood 22222 cece eee eee 5 2 CIOSING Upseri nr Cease eh ee ol toyed aes 5 18 Golor B lanee sei iaa en ds 6 11 Computer nput iieeeeeeeeeeeeeeeeeeeeinieis 6 16 control only one unit ooooooocoooocooo ooo 1 10 counter auto restrike o oooooooooooo 3 7 cube definition of oooooooooo ooo 1 2 Curtain du don ace a aa a a A EA Breet are 3 2 6 11 E O a taste ee 4 8 dark pixel u Ne ar en 4 12 decision tree a aaa 3 10
22. reset until AC power is cycled off and then on You try to turn on the lamp with an ON command from the remote or RS232 3 3 Discussion of Operation 3 3 1 Meaning of LEDs The LEDs on the bottom of the display can tell you a lot about what is going on and be a great help in diagnosing problems LEDs may be off on steadily or flashing The Standby LED might be flashing rapidly or slowly Flashing LEDs may or may not indicate trouble Flashing means going on and off in a regular way timed Flashing LEDs This LED flashing STANDBY Lockout time This is normal However if the LED was on steadily and the unit has just received an ON command it may mean there is no lamp installed or there is some other problem Lamp is over temperature according to lamp temperature sensor LAMP ON and TEMPERATURE Lamp door is open Or rarely thermal interlock is tripped INTERLOCK alone LCD is over temperature according to LCD temperature sensor Fan has a locked rotor It is supposed to be turning but it isn t TEMPERATURE alone Steady LEDs usually indicate a normal state Steady LEDs not flashing Unit is waiting for an ON command Ballast power is available at the electronics module ballast output connector It does not mean that the 350V is actually getting to the ballast 12 VOLTS 12 volts from power supply is on 5 VOLTS 5 volts from power supply is on TEMPERATURE Al
23. right of the front will line up and you will not be able nn If stair a a screw near the front to lift the back or right side dip replacethis bell Install the two screws at the bottom of the 12 e ais a In a Fl front Check to seethat the optical engine en to theincht SIGE OTENE is firmly mounted Mai i Coane fee white wires to the ther 13 Dress the cables into the clips along the mal interlock on top of the engine There front edge of the chassis and into the one is no polarity Dress them into the cable above the ae Me clip on the right side of the top of the 14 Check that a cormectors nave Wire ang optical engine all wires are plugged into connectors 15 Replace the hood p 5 2 if there is no more work to do in this area 16 Engine removed showing notch that holds optical engine Rear of optical engine showing alignment slot 5 8 Power Entry Repair The power entry system includes the power entrance socket AC filter circuit breaker and power loop thru socket Access to these parts is through a rear panel Or you can remove the optical engine to get to them To gain access to the AC power parts 1 Turn offthe AC power at the circuit breaker switch and remove the power cord WARNING Hazardous voltages exist inside the assis beneath the optical engine if the power cord is connected Always turn off the circuit breaker switch and remove the power cord before working in this area 2 Remove the hood p
24. under the optical engine The mirror adjustment screw is accessible from the center of the back or it can be adjusted with a knurled knob behind the bottom of the mirror All of the electrical connectors between the main parts are different If a connector looks like it won t fit you are probably trying to put it in the wrong place Re installing the hood 1 Tilt the hood to get it into the front opening 2 Set it in place over the two tabs on the back wall and slide it to the right to engage the tabs in the slots of the hood 3 Secure the two front captive screws 4 Secure the screw in the left rear This screw also holds one corner of the power supply DC Power Supply Lamp Ballast Lens Hood 2 tabs at rear Interior of display with screen removed and hood covering some parts IR Sensor on top of Power Supply 3 captive screws for hood Three screws and two tabs hold hood in place Electronics Module Optical Engine Display interior with hood removed 5 2 Two Wiring Diagrams The diagram on this page shows the cables and the wire colors The diagram on the facing page shows a general physical layout of the cables AC Power Entry VN 3820 VA Module Wiring Diagram 120 240V Hot Brown Aerower 120 240V Switch Neutral Blue 120 240V Hot IR Sensor Brown Power 5V Supply Black Black Red 5V 5 12V Yellow Red Red 350V Black Black B
25. 38 Leopard Display VN 3820 VA VN 3830 VA Module Level Service Guide 070 0033 01 28 June 2000 2000 by Clarity Visual Systems Inc All Rights Reserved Contents of this publication may not be reproduced in any form without permission of Clarity Visual Systems Inc Trademark Credits Macintosh is a registered trademark of Apple Computer Corp IBM is a registered trademark of International Business Machines Inc Windows is a trademark of Microsoft Corp All other names are trademarks or registered trademarks of their respective companies Disclaimer The information contained in this document is subject to change without notice Clarity Visual Systems Company makes no warranty of any kind with regard to this material While every precaution has been taken in the preparation of this manual Clarity Visual Systems shall not be liable for errors or omissions contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material LIMITED WARRANTY Clarity warrants to Buyer that the WN 3820 VA or the WN 3830 VA the Product if properly used and serviced will perform substantially in accordance with the product data sheet and users manual and will be free from defects in material and workmanship for 1 year following date of shipment This warranty does not apply to lamps see following section for lamp warranty and other consumable parts The main illuminatio
26. 5 2 3 Removethe optical engine p 5 12 The display accepts 115 VAC or 230 VAC 50 60 Hz with automatic switching TheAC wiringis shown on the facing page Ground earth points are e AC input to chassis e Power supply to chassis Electronics module to Ballast not shown in diagram two ground wires onein each cable 18 Circuit Breaker Switch AC to power supply Diagram of AC power entry wiring beneath optical engine 5 9 Check Lists for Closing Up Whether you go deeply into the interior of the display or you just open the screen for a quick look be user you don t skip anything when you close up Check list under the hood If you have not lifted the hood you might want to skip this part and go to the next check list O Optical Engine is secured with two screws O Rear and sides of engine do not move O Spade lugs are connected to thermal cutoff on above lamp location O HV plug from ballast inserted into lamp and screwed in place with two screws O Total of eight connectors are properly connected to the electronics module including flat gray ribbon cable O Power supply is secured to tabs in rear and with one screw on right front Check list after hood is installed O Power supply is secured with same screw as hood at left side O Two screws in front secure hood O Power supply has one cable to its left side two cable to its right side plus IR sensor on top On some early units the
27. HOT SURFACES NEAR LAMP SKIN BURN HAZARD Lamp housing as seen from the bottom of the display 1 3 Removing the Screen and Doors The screen is locked in place by two levers inside the lower cable tray These levers are held by thumb screws All the doors can be removed M ost service will require removing the screen The screen is hinged at the bottom and held at the top by spring loaded latches It is locked in place by two levers in the lower cable tray which are held by thumb screws To remove the screen 1 Open the lower cable tray e Loosen the two captive thumb screws at each side of the cable tray door and let it drop down 2 Lower the two screen locks e At each end of the cable tray find and loosen two thumb screws e When these screws are loose pull down on the levers They come down about 2 cm less than an inch 3 Pull out the upper half of the screen AN caution The screen s lower hinge is a sim ple tab and slot arrangement If you don t have con trol of it the screen can come all the way off and fall The screen pops out at the top If the unit is in the middle of a banner you may be able to get your hands along the top to grab the upper corners of the screen where the upper cable channel is If you can t reach over the screen use magnets on the mullion along the top of the screen Two magnets each with about 90 pounds 40 kg of pulling strength work well It is
28. LF LE opting gt len Dont nsnsi LF Put a check in the Use box Ie Espard tabs E acer IE Expand blank Brei FF Dingy Id sn Bhia Dipsy teed A Specify 13 for Line Pace Character 8 Click on the System tab and Modem Connection button Select the Com Port you will use Configure the serial Com Port to 19200 baud no parity 8 data bits one stop bit S Note Some Clarity accept data rates from 9600 to 57600 chosen in the Baud Rate menu In these products you may use these other rates but the rate in Procomm Plus and in the Clarity menu must match Experience shows that 38400 is the optimum for speed and that 57600 causes too many interrupts Set the Current Modem Connection to theCom Port 6 22 For easier access to the upload scripts click on the Paths tab and change the Script path to caclarityscripts Select EIN x Sele ws gt Pate net HE mm Natel Cursar Data Options naras option Modi N yy nais Gaal Tagen Les He Fate Protocol i Farr nal See Al Tamara M Porta Unload p progra bhri eu ZA E N E 3 En Eoin Mant ots mr Mri A canoer pia phas UN cool Potro pte ora ern Ad 9 Press the OK button to save the changes 10 Connect tho RS232 serial cable between the PC and the RS232 IN connector on the display 11 Test the communications link If thelamp is on turn it off with the remote control and wait for the cooling delay to finish Then turn off the power
29. Replacing the Electronics Module Removing the Optical Engine Installing the Optical Engine Power Entry Repair Check Lists for Closing Up 9 1 Where Everything Is Almost everything is accessible from the front or bottom of the display The electronics module and optical engine are under a hood When you removethe screen you seethe power supply and the ballast and in the center the lens T he rest of the optical engine and the whole electronics module are below the hood a metal cover like the hood or bonnet of an automobile AN WARNING Always turn off the circuit breaker switch and disconnect the AC power cord before attempting to service the display Removing the hood 1 Loosen the two captive screws on the tabs at the front edge of the hood 2 Loosen one captive screw on the left rear edge of the hood This screw also holds one corner of the power supply 3 The hood is also held by two notched tabs at the right rear Slide the hood to the left about Y 13 mm 4 Lift the hood tilt the left side up and take it out S Note In some early units some of the screws for the hood are not captive Now all the main parts are visible While you work inside be careful of the mirror It is easy to hit it with your head It is unlikely to break but you will leave grease spots on it There are a few parts that are not visible The AC power input circuitry and the lamp interlock switch are both
30. Technician s Name CUSTOMER Pe se nd PRODUCT M odel or Model Number Serial N umber DATE Date Service Was Requested Date Service Was Performed PARTS Clarity Part N umber Description Of Failure 6 4 Menus The following tables show the structure of the menus but not what they look like on the screen and give a brief description of the meaning of each menu item Notes for menu descriptions This command is also available from a special button on the remote control t IntheColor Balance menu the up down arrows move the highlight through the two columns T he left right arrows change the highlighted value This command is available only from a special button on the remote control Thenumbers in this menu are for reference only they are not measurements Main menu Frequency Opens the Frequency Select menu where the electronics module s frequency is adjusted to the computer s frequency Phase Opens the Phase Select menu where the electronics module s phase is adjusted to the a ET s phase Input Level Level Input Level Opens the Input Level menu the gateway to the Black Level and White Level menus the Input Level menu the gateway to the Black Level and White Level menus Opens the Position box where the image may be moved electronically Color Balance Opens the Color Balance menu where the brightness and color of the displays are matched to each other Curtain Opens a Curtain Se
31. V Black Brown Electronics Module pie Red Black Blue 5V Control Red Black Yellow Brown White Red Red Black 20KV Ballast Black Black Lamp Temp Sensor Interlock Interlock Switch Switch Block diagram wiring diagram showing wire colors Approximate physical arrangement of VN 3820 VA parts and wiring IR SENSOR BALLAST POWER SUPPLY LCD C LCD TEMP LAMP TEMP DOOR INTLK LAMP INTLK LAMP HV FAN PWR amp SENSOR Circuit Breaker N AD AC IN OUT Physical layout of wires and major parts Ribbon DC f to LCD Fan Temp Sensors IR sensor Electronics Module top view Interlocks Ballast Control DC from PS to Ballast Connector locations on electronics module Circuit Breaker Switch green yellow AC to power supply AC input wiring diagram 6 2 Calculating Lamp Life For the VN 3820 VA the average lamp life is 8 000 hours for the VN 3830 VA average lamp life is 4 000 hours This section will help you know when to change the lamps Always change the air filter when you change the lamp Average lamp life means that half of a group of lamps will last that long And half of them won t It is not a guaranty that the lamp will last that long If the displays are in a critical application where it is important that the lamp never go dark it is a good idea to replace the lamps early instead of waiting for them to fail The calcula tions in the box will tell you how
32. a good idea to cover the metal face of the magnet with plastic tape to prevent scratchingthe mullion A pair of these magnets is available from Clarity as SRT 200 an optional accessory 4 Tilt the screen forward slightly lift it out of the slots at the bottom and set it aside To replace the screen 1 Be sure the screen locking levers are ex tended 2 Put the four tabs at the bottom of the screen in the four slots 3 Rotate the screen up into place Use the heel of your hand at each upper corner to snap it into the latches 4 In the lower cable tray push up on the locks and screw in the two captive thumb Screws AN caution It is important to screw the screen locks This prevents the locks from falling down due to gravity 5 Close the lower cable tray To open the air filter or lamp door 1 Loosen the two thumb screws 2 Lower the door 3 Both doors can be removed at the hinge Note The lamp door must be securely closed for the lamp to ignite It has an electrical inter lock that prevents the lamp ballast from sup plying power if this door is open TP Location of sal n screen locking screws Screws holding the screen locking levers Screen locking screws in neighboring units TUJ a zer Locking lever screws to adjacent units are next to each other Lowering the screen after pulling it free from the upper spring latches Air filter door opened
33. ahrenheit If the Current value in C is above or the same as the High value the TEMPERATURE LED will begin to flash This will not normally shut off the lamp It will only shut off the lamp if the Temp Control item is checked in the Service Menu Lamp xxxC xxxxF xxxC Baud Rate Menu 9 6 Kbps 1 19 2 Kbps Chooses the baud rate for RS232 transmit and receive This rate must match the 1 38 4 Kbps baud rate of the RS232 commands coming from computer 57 6 Kbps Monitor Select IR Disabled Prevents stray infra red IR radiation from disturbing electronics module Also used to turn off IR reception in some units so remote control does not change them When x is present only ID button on remote control will affect the unit Use ENTER to toggle the x Save Config Save Initiates the Save process where all current values and toggle states are saved Are You Sure menu below opens Are You Sure Yes No Confirmation of Save Recall and Reset decisions Recall Config Recall Initiates the Recall process where previously saved values and toggle states are made current Are You Sure menu above opens Reset Config Reset Initiates the Reset process where factory default values and toggle states are made current Are You Sure menu above opens Contains manufacturers name and contact information firmware revision letter and some manufacturing data To go to the Service Menu from t
34. an rotor The fan motor has a locked rotor sensor If the fan motor stops turning the electronics module shuts off power to the lamp ballast There is no interlock for the screen Removing the screen does not turn off the high voltage lamp ballast This is why the screen has locks that are held in place by screws Only qualified service persons should remove the screen Lockout With Auto Lamp On enabled the factory default condition in theMisc Control menu the ballast will try to ignite the lamp three times waiting 30 seconds after each try Hereis the order of events from the initial application of power The lighted circuit breaker is turned on The electronics module goes through some initialization procedures This takes about 10 seconds T he fans start and the STANDBY LED flashes for another 10 seconds or so The electronics module tries to ignite the lamp If it senses that the lamp is lit the STANDBY LED goes out and all is normal If it does not sense that the lamp is lit T he STANDBY LED flashes for 30 seconds During this time the ON command will not turn on the lamp The electronics module tries to ignite the lamp a second time If it senses that the lamp is lit the STANDBY LED goes out and all is normal If it does not sense that thelampis lit T he STANDBY LED flashes for another 30 seconds Duringthis time the ON command will not turn on the lamp The electronics module tries to ignite the
35. ation menu Was Lamp Chang ed 4 With the left right arrows highlight Yes and press ENTER If you are installing a new lamp reset the meter If you are puttingin a used lamp you will haveto keep track of lamp life in some way that you devise The System Hours shows how long the Electronics M odule has been powered up You can t reset it H ow to replace the air filter e Open the air filter access door which is held by two thumb screws and remove it e Remove the old filter and inspect it Replace if necessary Air filters are cheaper than lamps and LCDs The new filter goes in with the sponge side down e Reconnect the door close it and tighten the thumb screws Air filter door opened Lamp door opened Air filter partially removed from door Removing the lamp lamp door was removed 2 2 Cleaning the Screen Lens and Mirror Dust and smudges on the mirror can degrade the display s performance Some cleaning products leave a residue and should be avoided The lens should be kept clean Do not spray liquids directly on the screen Rule No 1 Always spray the cleaning solution on the cloth or the paper wipe Never spray anything on the screen itself Rule No 2 Always follow Rule No 1 Why Because the screen is a laminate of two layers If liquid runs down the screen it can collect at the bottom T hen it can wick up between the laminated layers This can leave a permanent stain on the screen when
36. attern Electrical shorts in External checkerboard pattern No solid black or white rows or columns of pixels rows or ES RS 232 232 Able to control the unit from a PC talking to the RS 232 port Color Balance Internal White then Gray on Adjacent cubes are the same brightness and hue Instructions all cubes in the banner for Color Balance are in the User s Guide for the VN 3820 VA The outer edge of the magenta rectangle should just touch the Image position Internal Geometry pattern edge of the mullion 1 pixel The outermost magenta rectangle is one pixel wide Use the next one in External RGB pattern with 256 Colors vary smoothly in shade No horizontal bands of one Color Range shades per color color 4 2 Functional Tests in the Field 4 2 1 Specifications for Optical Defects No electronic system is perfect but how do you know when it is unacceptable This list of the definitions and specifications for optical defects what is allowable and what is not answers that question Don t be frightened by this list of possible problems They don t occur very often The following specification defines the maximum allowable defects in the image of a Clarity VN 3820 VA T hese defects include pixels that are stuck either on or off and bright or dark spots caused by scratches dust or smudges Definitions N on operational bright pixel This defect in theLCD appears as a bright red bright green or bright blue spot
37. ck and screws on the front Set the slots over the tabs in the display s chassis and pull it toward the front to line up the screw holes Install the screw on the front right and the one on the left side wall Do not install the front left screw yet On the right side of the power supply plug the black white cable from the elec tronics module to the connector in the front Plug the six wire connector from the elec tronics module to the rear connector on the right Dress the cables into the clip below the power supply If you are finished working inside reinstall the hood One of the hood screws holds the front left of the power supply Power supply showing IR sensor on top two connectors on right hood has been removed a Power supply bottom showing two slots and AC grounds wire secured with screw Power supply partially removed showing AC input connector on left side two connectors on right side have been removed Space where power supply goes showing tabs at rear and screw sockets in front 5 4 Replacing the Lamp Ballast The lamp ballast is not repairable in the field It is replaced as a whole part The plug and cord from the ballast to the lamp stay with the ballast If you replace the lamp ballast you should color balance the this display to the other displays Removingthe ballast 1 Turn off the AC power at thecircuit breaker switch and remove the power cord R
38. clips 6 Plug the lamp connector into the top of the optical engine It goes in only one way Secure it with the two screws UN caution It is important to secure the lamp connector to the top of the optical engine with screws lf it is not screwed in place the next time a lamp is changed the connector will push up and the lamp will not connect 7 Replace the hood if there is no more work to do in this area num a 1 dir Ballast fully installed with cables in clip Loosening screw at bottom of ballast us A Top of ballast showing two connectors ground screw and tabs on the back Back of display interior showing two holes for ballast hooks and screw post below h F Lamp plug connected and secured with two screws Lamp connector disconnected 5 5 Replacing the Electronics Module The electronics module is beneath the hood the light shield coveringthe optical engine It is replaced as a whole unit There are no field replaceable parts in it Ground yourself before handling the electronics module Removing the electronics module 1 10 11 Turn off the AC power at thecircuit breaker switch and remove the power cord In the lower cable tray disconnect the Computer Input and RS232 In and Out cables if present Remove the hood p 5 2 Release all the cables from the clip just above the electronics module Unplug the connector with black red and blue wires
39. ctronics module tries to light the lamp a second time After another minute if the lamp is still not on the electronics module goes into lockout for one minute again and then tries athird time If it doesn t light within one minutethis time the electronics module quits trying Here is the sequence It is assumed in the following that the Auto Lamp On feature is enabled the default state Auto Restrike Sequence AC power is turned on Auto Restrike counter is set to zero During the normal startup sequence STANDBY LED Lamp does not light for some reason flashes rapidly while lamp tries to strike 1 try A relay in the ballast clicks 3 times which you may be able to hear 30 seconds later relay clicks three times again Lamp still does not light Restrike counter set to 1 standby LED still flashing rapidly 2 try 30 seconds later relay clicks three times again Lamp still does not light Restrike counter set to 2 standby LED still flashing rapidly 3 try STANDBY LED flashes more slowly about one flash Fans are still on Lamp is not on per second This continues for another 30 seconds STANDBY LED turns on solid without flashing Fans stop FAN LED is off LAMP ON LED is off Unit is waiting for an ON command Restrike counter is at its maximum and will not reset until AC power is removed then re stored The lamp will try to ignite once The Auto Restrike counter is already at its maximum and is not
40. d on Thereis no reason to do this because the values themselves are not important It is only important to see if they are increasing when you try to troubleshoot RS232 communication problems e Rx counts the number of valid characters received by the UART e Tx counts the number of characters trans mitted by the UART The four values at the top count various errors T hese are not necessarily discrete counts For instance high noise on the line may increase the count in all four of these values e Overrun counts the number of characters that come to the buffer faster than the buffer can handle then e Noise counts the number of events the UART interprets as noise in the signal e Framing counts the number of errors in the two parts of the signal that enclose the bits in the character e Parity counts the number of parity errors Because this system does not use parity any parity bit detected is an error If any of these four error counters are in creasing particularly if they are increasing rapidly the error is most probably in one of these places The baud rate set in the Baud Rate menu is not the same as the baud rate of the sending computer e The data from the computer is not 8 bit no parity 1 stop bit e The 9 pin to RJ45 adapter was not wired correctly e TheRS232 cables are close to something that is producing strong noise which is being induced into the RS232 lines Service Menu Test Patterns Gam
41. definitions u nen 1 2 diagrams wiring eeeeeeeeeeeeeeie ie 5 4 6 2 6 4 disable IR sensor 0 0 cece eee eee eee 6 13 display definition of 0 2 eee eee eee 1 2 COO arr nl A aces 6 17 A E E E E eae dho Bere ac 1 6 VAMP scoil eoi ee ehren ehe 1 6 AUS a labo 4 12 electrical interlock oo ooooooo ooo 1 4 electronics module 5 10 6 18 enter button ee ee ee ee ee sis 1 10 TAN Eure en nes 3 8 6 17 fan interlock o o o ooooooooooooooooo o 6 17 fan EEDAss a Ye rin 3 3 3 7 6 15 HOMO Si as Gua 4 10 firmware upload 22222 6 18 flashing LEDS ii ii ea nesate en een 3 6 3 8 3 9 flickering LEDS iss bee fia e is agis en 3 9 Flip Horz Vellmar o eaae ren 6 11 Framing e o esa kt a ede 1 8 6 14 Frequency Select 00 0 e eee eee eee ee 6 9 Fresnel ere Soka dee Ch en hoe arin ate uta nido 4 12 functional tests ee eee 4 10 Gamma Disable 0 000 eee 1 8 6 14 Geometry test pattern oo ooooo ooooo 4 6 6 13 Gray Sale ecc ae eee c 6 13 hide bixels ui aa Seale ee eae en re 4 2 hood removing amp replacing o ooooooo 5 2 horizontal fliP en o 6 11 ID secs aia tad EEE 6 11 image ANONIMO sd tr 4 2 GEeNIEFING lt 3 cen eS aan eta epg ner 4 6 MOVING 0 2 ee eb E 4 2 POSITION Leia it aR eA 4 2 problems aan ee in DE 3 4 A A iD eet doe Se ah ated 4 2 tilting seis eee res a bol 2 tee 4 6
42. e parent menu if there is one If there isn t a parent menu this button removes the last menu ENTER selects the highlighted item and opens that menu Or if the highlighted item is like this Flip Vert it turns on or turns off the feature e Seven of the main menu items have fast access buttons that let you get to the feature immediately These are in the upper right corner of the remote In this display the Source button has no function it is used in other Clarity products which use the same remote In general the up down arrow buttons move through the menus and the right left arrow buttons change the highlighted value e Theip and MON SEL functions are not available in the main menu How to control only one unit T he IR signal from the remote radiates over a fairly broad area and it is sometimes hard to control just one unit especially if you are more than 10 feet 3 m back To solve this turn off the IR sensor in the units you don t want to control Get close to the units you want to turn off and press MON SEL and press ENTER Now that unit will not respond to any commands except another MON SEL ENTER Which will turn it back on In this manual buttons on the remote control will be printed in a style like this LEVEL and menu items will be printed likethis Input Level This control is not functional in this display These controls are ES also found in the CURTAIN PHASE Ma
43. e INTERLOCK is lit and reset if necessary INTERLOCK flashes if any interlock is open Check power supply Check ballast Check connections on ballast power supply and electronics module This is lit when 350V from the power supply is getting to the electronics module and is available to the ballast at the electronics module connector STANDBY flashes This is normal for another 10 seconds or so The lamp is starting rapidly and the electronics module is checking to see if the lamp is lit Within 2 5 If STANDBY goes off the unit is in Auto LAMP ON and the lamp is lit seconds i STANDBY goes off antematca y e as LAMP ON is lit If STANDBY stays on steadily without flashing the unit is waiting for wo an ON command If STANDBY starts flashing again something is preventing the lamp from turning on STANDBY off Normal lamp is on LAMP ON LED lights when lamp current is FAN on being drawn from the ballast LAMP ON on STANDBY flashing Normal during startup when AC power is first applied Electronics rapidly module is checking to see if lamp is on FAN on Some normal STANDBY flashing more conditions slowly about 1 flash per second FAN on LAMP off BALLAST POWER is lit Normal after lamp is turned off This is a lockout period which is about 30 seconds long The fan is running to cool the lamp before it can be lit again After the 30 seconds the display has the condition shown below STANDBY on Normal waiting for ON command
44. e how to make the necessary adjustments How to see the G eometry test pattern get rid of the menus 1 With the remote press MENU 2 Highlight Misc Controls press ENTER Below are some examples of image geometry 3 Highlight Test Patterns press ENTER problems 4 Highlight Geomet ry press PREV MENU to DL Right side too far in Image too high adjust both adjust LCD side screw bottom LCD screws together Image rotated CW adjust Image too narrow at top or bottom one bottom LCD screw adjust keystone with mirror screw 4 1 Moving and Aligning the Image 4 1 1 Correcting Keystone Problems Keystoning when the bottom and top of the image are not the same width is corrected by moving the mirror It is easiest to make this adjustment from the rear but it can also be made from the front If the bottom and top of the picture are the same width skip this section You can move the bottom of the mirror toward or away from the screen and this changes the size of the bottom edge of the image relative to thetop M ovingthe bottom of the mirror to ward the screen shortens the light path and de creases the size of the bottom of the image You havetwo ways to adjust the mirror The easiest way if you have access to the back of the display is with a 2 mm hex head Allen driver A 5 64 hex driver will also work In the center of the back you will find a recessed hex head adjustment screw If you do it this way you can
45. eaker switch on the Clarity display AN CAUTION With some upgrades the script will upload a file called CBUG The Procomm status display should display this file name when it is being uploaded If there is a communication problem during the upload of this file the electronics module will be left inoperable The only way to fix the module if this happens is to send it back to Clarity for reprogramming 15 Procomm Plus will upload several other files to the display The complete upload may take as much as 15 minutes Wait until Procomm Plus displays the message Executing Application 16 The Clarity display will then go into the delay mode Standby LED flashing 17 When the Standby LED is solid not flashing turn on the display with the remote control 18 Verify that the new firmware has been installed by looking in the About menu Also verify that all colors and functions of the display appear normal If they are not normal upload the firmware to the display again You may need to use a different script this time If you have other displays to do go back to Step 12 Index O A A A ws 2 eed maraithe 3 3 3 8 6 15 16M Colors 0c cee o 6 11 350V ee a 3 3 HVOIS ea es ee di moe ee 3 3 3 8 6 15 50 Gray ns nme 6 13 9 pin to RJ45 adapter 22mm 6 16 ADQUE e ee ee 6 14 AC power nn pee nn en ann den 3 2 3 7 repalt Of nun ea a ee A 5 16 acceptance criteria ooooooooooooooo 4 12 adapter RJ45 to 9
46. emove the hood p 5 2 Cables from thetop of the ballast are secured to the right side wall Release these cables from the clips Two thick wires come from the bottom of the ballast and go to the lamp connector on top of the optical engine Remove the two screws on top of the optical engine that hold this lamp plug Pull straight up on the lamp plugto disconnect it Loosen the captive screw at the bottom of the ballast This is athumb screw but it may be more than finger tight The ballast hangs from two tabs that fit into slots on the back wall Lift the ballast slightly and lift it away from the wall It will still be connected to cables Remove the screw holding the two ground wires to the top of the ballast Put the screw back in place to save it for later Disconnect both cables goingto the top of the lamp ballast The connector with one black and one white wire has a latch Installing the ballast 1 On the top of the ballast connect the two cables to the ballast One cable has a black and a white wire and comes from the elec tronics module T he other has three wires 2 Connect both ground wires to the screw between these connectors 3 Hang the ballast by its tabs on the two holes on the back wall of the chassis 4 Secure the ballast with the captive screw at the bottom Finger tight is good enough 5 Dress the cables from the top of the ballast to the right wall and into the cable
47. en How to Open the Service Menu About the Remote Control 1 1 What This Manual Covers This manual covers two models the VN 3820 VA and the VN 3830 VA which differ only in lamp brightness The 3830 has a brighter image They both use the same lamp but the lamps are driven by different ballasts The ballast for the VN 3830 VA drives the lamp harder making the screen 20 brighter but shortening the average lamp life from 8000 hours to 4000 hours Otherwise the two units are identical and this manual will refer to both of them as VN 3820 VA the 8000 hour mode Some terms used in this manual are Display unit and cube all mean one VN 3820 VA Banner means a group of units mount ed side by side M ullion is the metal strip surrounding the screen itself It is wider at top and bottom than on the sides You need only a few tools to service the VN 3820 VA e All the adjustment screws inside are 2 Phillips e Other screws are thumbscrews with slot ted heads M ost of these slots are large enough to turn with acoin e One hex head Allen screw is 2 mm but 5 64 fits too However the one adjust ment that uses this tool can be done in another way without any tools e Thetwo bolts that hold the display to the lower support rail are 10 mm T he nearest inch size is 13 32 which is not a common size in socket or wrench sets e Thethree nuts and bolts that hold the units side by side are also 10 mm but the
48. en the unit and remove the hood Remove the hood p 5 2 e RemovetheLCD cover On the right side of the lens remove a screw holding the LCD cover The cover is held by clips at the base of the power supply Use a flat blade screwdriver to press the top of these clips to the left On some units the LCD cover is also held with a screw near the left front clip Remove this screw also Lift off the LCD cover TheLCD is now exposed and you can move it slightly with your fingers Use the screws to make the final adjustments You only need to expose the LCD if it won t move with the screws alone LCD adjustment screw locations 2 up down screws in holes shown by circles left right screw inside air filter door indicated by arrow Front of Display Left right LCD adjustment screw inside air filter door indicated by white arrow A screwdriver is inserted in the adjustment screw 4 1 Moving and Aligning the Image 4 1 3 Adjusting the Light Path You will almost never have to do this If you see a dark area on any side of the image and that area has a soft unfocused edge it may be that the light path is not aiming straight at the LCD You can adjust for this with an internal lens and a mirror A dark area with a sharp edge means the LCD needs to be adjusted Thisis one of thosethings that you shouldn t do if it doesn t need to be done It is not something you should adjust simply to see if you can get it a little better
49. exadecimal 0 F Group 0 Shows Group ID hexadecimal number of this unit can be changed with left right arrows Shows Unit ID hexadecimal number of this unit can be changed with left right arrows Misc Control Sharpness Turns Sharpness on and off should be On for PC and MAC input 16M Colors Toggles between 16 million colors and 256 thousand colors Buzzer Enable Turns Buzzer on and off does not affect buzzer for main On and Off buttons or for command error triple beep Flip Horz Reverses image left right Flip Vert Reverses image up down Auto Lamp On When x is present lamp tries to turn on after the standby delay has elapsed This is the default condition See also page 6 17 Test Patterns Opens Test Patterns menu patterns are internally generated Temperature Opens Temperature menu Baud Rate Opens Baud Rate menu 6 12 Test Patterns 1 Off No test pattern external video passes through to screen White Internal white field Black Internal black field 50 Gray Internal gray 50 white field Internal red field Green Internal green field Blue Internal blue field Geometry Internal grid pattern showing edges of LCD image Gray Scale Internal pattern ranging from black to white left to right showing all bit levels Temperature Menu Sensor Current High Shows the current temperature at the LCD and Lamp sensors in both LCD xxxC xxxxF xxxC Celsius and F
50. f there 5 Remove the two screws for the lamp plug and unplug it from the top of the optical engine 6 Pull off the two spade lugs from the ther mal interlock on top of the optical engine 7 10 11 12 Disconnect the two cables on the right end of the power supply to get them out of the way Totheright of the lens remove a screw holdingthe LCD cover This cover surrounds the lens and makes a small rectangular hood over the LCD On the left front of this cover remove a screw On some early models there was no second screw here Removethe LCD cover It is held by clips at the base of the power supply Sometimes these clips hold very tightly Use a flat blade screwdriver to press the top of these clips to the left Lift off the LCD cover Remove the two screws at the bottom front of the optical engine that hold it to the chassis Pull the optical engine forward about Ya 6 mm This releases it from a notch on the right side Then lift it straight up and out LCD cover latches power supply was removed Optical engine screw on right front Pull the optical engine forward then lift it out Thermal cutoff switch disconnected a L E Lamp plug AS Top of optical engine with lamp plug pulled out and thermal cutoff swtich disconnected 5 7 Installing the Optical Engine The optical engine is removed and replaced as a single unit Before you put it in it should be comple
51. ff the power to the lamp which is 350 volts Do not look directly at the lamp when it is on The lamp produces ultraviolet light which you cannot see but which can damage your eye s retina over time After the light has passed through several layers of glass the ultraviolet light is effectivel y filtered out so the light coming from the lens cannot cause this problem However this light can be very bright WARNING TURN OFF POWER SWITCH BEFORE OPENING COVER HOT LAMP INSIDE ALLOW AT LEAST 15 MINUTES FOR LAMP TO COOL BEFORE REPLACING RISK OF EXPLOSION HANDLE BULB WITH CARE SEE USER S MANUAL FOR LAMP REPLACEMENT AVERTISSMENT COUPER L ALIMENTATION ELECTRIQUE AVANT OUVERTURE DE LA FACE AVANT ATTENTION LA LAMPE EST CHAUDE LAISSER REFROIDIR AU MOINS 15 MINUTES AVANT SON REMPLACEMENT RISQUE D EXPLOSION MANIPULER L AMPOULE AVEC PRECAUTION SE REFERER AU MANUEL DE L UTILISATEUR POUR TOUT REMPLACEMENT DE LA LAMPE WARNUNG DEM FFNEN DES DENKELS STROM ABSCHALTEN VORSICHT EXPLOSIONS GEFAHR LAMPE IST HEIB WARTE WENIGSTENS 15 MIN F R DIE LAMPE ZUM ABK HLEN VORSICHT MIT DER LAMPE BEIM HANTIEREN FOLGE ANWEISUNGEN F R DEN LAMPEN WECHSEL IM REPARATUR MANUAL a ANWARNING i pi EEn High iten ant OF cause danih Do not look into the projection lens while unit is on A ENTE Ey DISCONNECT POWER CORD BEFORE SERVICING 4 NO USER SERVICEABLE PARTS INSIDE S t FRONT N WARNING
52. his menu press up up right left down Test Patterns Opens the Test Patterns menu which is also available from the Misc Control menu Gamma Disable Bypasses the Color Balance values Normally not checked Temp Control Enables when x is present the temperature readings from the LCD and lamp to shut off the lamp if one of the limits is exceeded Normally not checked Serial Status Opens the Serial Status menu Serial Status Menu All of these are cumulative decimal numbers from the UART that may increase but they never go down lf power is removed from the electronics module these numbers will be reset to zero Ideally the first four items will not increase If any of them increase rapidly it is probably because A the baud rate of the computer does not match the display s baud rate setting or B the data from the computer is not 8 bit no parity 1 stop bit Other problems might be that the 9 pin to RJ45 adapter is incorrectly wired or the RJ45 cable is not straight thru Increases if the buffer is getting characters faster than it can handle them Count of noise events detected in the signal Errors in the start of character or end of character frame around a character Parity Count of parity detections since this system does not use parity this should not increase NES Number of valid characters received 6 14 6 5 LEDs This table shows all the LEDs and their meanings STANDBY On if the unit is in
53. ible at all in a white picture Limit 10 dark pixels no morethan 2 dark pixels can be adjacent to each other touching Scratches blemishes dust lint These count as a defect if the length plus the width is greater than 1 pixel and visible from 1 5 meters Limit 20 such defects However if there are bright or dark pixels these are added to the scratches blemishes dust and lint and the total cannot exceed 20 Screen scratches Counted if visible at 1 5 meters None allowed Smudges Counted if visible at 1 5 meters None allowed Definitions of Optical Defects Tolerance Limit Red green or blue on black image 12 no more than 5 adjacent Stays dark on white screen 10 no more than 2 adjacent On the image displayed on screen Counted if visible at 1 5m none allowed Type of Defect Non operational bright pixel Non operational Dark Pixel Scratches on the LCD Blemishes Foreign material on the laminated films Counted if greater than 1 pixel and visible at 1 5 m limit 20 when added to scratches Dust and lint on mirrors Usually not visible unless very heavy Dust and lint on LCD Fresnel polarizer Noticeably darker areas in image Smudges Discontinuity of white or gray image over Counted if visible at 1 5m none large area allowed 4 14 5 Replacing Parts 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 Where Everything Is Two Wiring Diagrams Replacing the Power Supply Replacing the Lamp Ballast
54. ifference from 3820 1 2 Was Lamp Changed menu 2 22 2220 6 11 was file extension ooooooooooommmmm m 6 20 wax file extension o oooooooooooooo 6 20 WIRE iii id ee ee 5 2 White EVE si sper sae gre rta as 6 10 wiring diagrams 00 00005 5 4 6 3 6 4 Feedback About M anuals Clarity Visual Systems Inc is constantly striving to provide the best product available at a reasonable cost Part of this Clarity product is the manual If you have found an error in this manual or if you would like to comment about it please en usingthis form Copy the part number of this manual from the title page here 070 You may fax this form to Clarity Visual Systems at 1 503 582 8570 Or you may email comments and corrections to manuals C laritW isual com When you use email please mention the part number of the manual which starts with 070 and is on the title page What like about this manual Weloveto read this part What I don t like about this manual We read this part too actual ly Error s found in the manual Yipes We thought we were perfect In future manuals of this type wish you would Thank you for taking the timeto help us improve manuals C laritwV isual com fax 1 503 582 8570 6 29
55. ight The ze and position of magenta lines viewer s brain fills in the hidden pixels and the image appears correct Ideally you should just see the outer edge of the 2 pixel wide magenta rectand e the 1 pixel magenta rectande and the next two pixels of white should be completely hidden As with most deal situations this is difficult to achieve precisely If you come within 2 pixels of this ideal you should be satisfied You will usethree types of adjustments to achievethis alignment goal 1 Movethe bottom edge of the mirror to change the width of the bottom relativeto thetop eliminate keystoning 2 Rotate the lens to change the size of the image 3 MovetheLCD to changethe position of the image A straight line projected over two adjacent displays when 3 pixels are hidden behind each mullion It is best to start with number 1 to makethe image a good rectangle then work on the other A straight line projected over two adjacent displays when two steps If the image is already a good no pixels are hidden behind the mullions rectangle skip step 1 It is not necessary to get the image aligned Theinternal Geometry test pattern is a great exactly right If you come within two pixels on help in hiding three pixels Here is the pattern all sides and in all corners the image and the banner will look fine The illustrations on the facing page show some examples of images that need aligning The next two subsections describ
56. in Menu These two controls E ES are not found in the FREQ Main Menu O Select or This opens the activate a feature Main Menu Back up one menu level E Move through the menu The Remote Control Adjust a value 1 12 2 Regular Maintenance Can Prevent Problems 2 1 Replacing the Lamp and Air Filter 2 2 Cleaning the Screen Lens and Mirror 2 1 Replacing the Lamp and Air Filter Two parts can be replaced by users without the help of a qualified service person the lamp and the air filter Both of these can be replaced without openingthe screen or the lower cable tray The air filter should be replaced with every routine lamp chance When you change the lamp you should also change the air filter You should change the air filter more often if the environment is particularly dirty dusty or greasy The air filter prevents dust from blowing around inside the display and settling on the mirrors and other optical parts The average lamp life is 8000 hours in the VN 3820 VA and it is 4000 hours in the VN 3830 VA That s average lamp life Some lamps will last longer than this some not as long To replace the lamp 1 Turn off the lamp with the remote control OFF button or with an RS232 POF command 2 The lamp is very hot Allow at least one minute for the lamp to cool Watch the FAN LED on the bottom When this goes out it is safe to remove the lamp 3 Open the lamp access door which is hdd by two th
57. ing If the dark area is soft and fuzzy see the next section To adjust image size rotate the lens Open the air filter door and reach up and toward the back behind the fan You can rotate the lens this way without opening the screen To move the image use the 3 LCD adjustment screws T wo of these screws are in holes on the bottom of the display These move the image up and down T urningjust one of them tilts rotates the image The other screw is inside the air filter access near the fan It moves the image right and left All three of these screws are 2 Phillips head The image is folded on its way to the screen so the screws all work backwards Tightening the screw next to the fan moves the LCD to the rignt but it moves the image left Similarly tightening the bottom adjustment screw on the left side moves the left side of the LCD up which lowers the left side of the image When you adjust the LCD use the following guidelines e Usetheinternal Geometry test pattern e Hidethree pixels on all sides as described in Section 4 1 mam black grid white background 2 pixels magenta see 2 pixels white hide 1 pixel magenta hide Lower left corner of internal Geometry test pattern showing size and position of magenta lines You should be able to adjust the LCD without opening the display However if it does not move readily it may be that it is held too firmly in its slot e Op
58. is wire goingto AC output not lit here are some possible causes not listed e Small lamp in circuit breaker is faulty in the tree and there could be many more e Circuit breaker is not turned on So use the tree to help you point to major Power cord has broken wire internally areas where the problem might be found It is e Broken wire inside unit from AC input to not a replacement for a good technician s brain circuit breaker Which is the kind you have right 3 12 4 Adjusting the Image 4 1 4 2 Moving and Aligning the Image 4 1 1 Correcting Keystone Problems 4 1 2 Adjusting Size and Centering 4 1 3 Adjusting the Light Path Functional Tests in the Field 4 2 1 Specifications for Optical Defects 4 1 Moving and Aligning the Image Always align the image using the internal Geometry test pattern To change the position of the image or to tilt it move the LCD To correct keystone problems move the bottom of the mirror Before you adjust anything you should know the goal of alignment and understand the parts of the Geometry test pattern The goal is to a Mr have a rectangular image with three pixels black grid hidden behind each mullion each screen en 2 pixels magenta see border 2 pixels white hide Why hide three pixels Why not show them 1 pixel magenta hide ay Hioinirnree pixas Makes straight ne Lower left corner of internal Geometry test pattern showing that cross between displays appear stra
59. it dries The best way to clean screens is to try to blow off the debris with clean dry compressed air If this does not work a finger print for instance use a good quality optical cleaning solution and lint free paper wipes or cheesecloth The best way to clean the mirror is with clean dry compressed air This will remove most dust If the mirror has a smudge or grease spot use a cleaning solution like the ones listed here Usea new clean cloth or lint free wipe Why a new cloth Because a used cloth may have hard dirt or grit embedded in it which you can t see This can scratch the mirror The mirrors are front surface mirror so the reflecting coating is on the front of the mirror not behind it like the mirrors in your home To clean the lens first try blowing the dust off with clean filtered compressed air Camera stores supply this Or usea lens cleaning solution and lens tissues also available at camera stores Check the image size after you clean thelens because the lens may have turned Some representative cleaning products for mirrors are e Zero Charge Screen amp Keyboard Cleaner made by T ech Spray Amarillo Texas 803 372 8523 e Klear Screen Laptop amp Computer Screen Cleaner by M erridrew Enterprises Danville California 510 838 8774 e Sparkle made by Paulson and Roles Portland Oregon 503 282 3289 Don t spray liquids directly onto the face of the screen 2 5
60. l measured temperatures are below their limits INTERLOCK All interlocks are closed SOURCE A valid source is present on the VGA connector These voltages are not measured LED could be on with the voltage somewhat low STANDBY LAMP ON BALLAST POWER Other LEDs Thethree LEDs at the bottom of the panel flicker when they are active Flickering means going on and off very rapidly too rapidly to count and in a random manner Flickering LEDs RS232 GLOBAL There is activity on the RS232 IN connector whether or not it is a valid command RS232 LOCAL A valid command is being received for this unit whether global or to this specific unit REMOTE IR infra red radiation is coming from somewhere Table of Flashing LEDs O LED flashing amp LED off EYN LAMP ON l Lamp temperature is over the limit Check lamp temperature in Temperature menu TEMPERATURE A EA A AAN E AAA IA AAA A A AT E AA AAA A AAA AA AAA AAA E EA AA AAA AAA AA A A A AAA STANDBY EN Unit is in Standby state waiting for an ON command from the remote control or from an AAA AE AE EA STANDBY ES If the Unit is on and there are other LEDs lit the lamp should be on However for the first 7 3 4 Troubleshooting Decision Tree Sometimes when you can t think what is wrong it helps to have a decision tree This tree is not comprehensive T here could be other things wrong that are not shown here but this gives you a
61. lack LCD Temp Blue White White Sensor 5V Black Brown Electronics Module Red 5V Black Brown Red Lamp Temp Sensor Door Interlock Interlock Switch Switch Ground 1 Wire Green Yellow AC Power Loop thru Module Chassis Fan 12V Black Blue Control Red Yellow White Red Black LCD 5V Data 30 pin Gray Flat Cable 20KV Black Black Ballast Wiring diagram showing wire colors colors subject to change IR SENSOR BALLAST POWER SUPPLY LCD C LCD TEMP LAMP TEMP DOOR INTLK LAMP INTLK LAMP HV FAN PWR amp SENSOR Circuit Breaker AC IN OUT Physical layout of cables and wires in VN 3820 VA Ribbon DC Input to LCD IR sensor Fan Temp Sensors f Interlocks O Ballast Control DC from PS to Ballast Electronics Module top view Connector location on electronics module 5 3 Replacing the Power Supply The power supply cannot be repaired in the field It is replaced as a whole part The IR sensor for the remote control is mounted on top of the power supply but it is not part of it One of the screws holdingthe power supply also holds the hood on To remove the power supply supply with a screw Remove and save 1 Turn off the power at the circuit breaker this screw switch and disconnect the power cord 11 Remove the IR sensor from the top of the 2 Remove the hood p 5 2 power supply 3 Disconnect the two connectors on the right side of the
62. lect box where the Curtain can be turned on and off The special Curtain button on the remote turns the Curtain on black screen and off without bring up the Curtain menu Hours Opens the Hours box where Lamp Hours can be read and reset and System Hours can be read only Save Config Opens the Save Config uration box where the configuration can be saved Recall Config Opens the Recall Config uration box where the saved configuration can be recalled Reset Config Opens the Reset Config uration box so the unit can be returned to the factory default configuration Misc Control Opens the Misc Control menu Opens the About box Frequency Select TEE Adjust the frequency number shown does not directly correlate to frequency 8 Phase Select 000i Adjust phase number shown does not directly correlate to phase Input Level Black Level Opens Black Level menu White Level Opens White Level menu Black Level Requires Black field Auto Automatically adjusts the display s Black Level to the incoming video from the PC or MAC Always use this option rather than adjusting this level manually All Raises or lowers all three RGB levels together Level Sample Level show the current internal setting of R G and B Red 127 001 Sample shows the levers in bits detected in the incoming signal 000 is Green 126 000 black 255 is maximum white Blue 131 000 White Level Requires White field
63. long the average lamp will continue to work Lamp Life Calculation Thelamps are lit h hours per day Thelamps arelit_d_ days per week hxd w For VN 3820 VA displays 8000 w For VN 3830 VA displays 4000 w average number of weeks lamp life average number of weeks lamp life 6 3 Service Repair Forms Photocopy the forms is this section to help you keep track of service performed results achieved You can also use these forms to fax information to Clarity Visual Systems for technical support clarity vn 3820 VA Troubleshooting Helper Print it fill it out and fax it to the number below To Clarity Visual Systems Customer Service From Company Phone Fax If you experience trouble with a Clarity VN 3820 VA or VN 3830 VA display please fill out this form and fax it to Clarity 1 On date VN 3820 VA serial number C the LEDs were like this LED STANDBY LAMP ON BALLAST POWER 12 VOLTS 5 VOLTS TEMPERATURE FAN INTERLOCK SOURCE RS232 GLOBAL RS232 LOCAL REMOTE Q Flashing 2 I also noticed that gpgoDoooooo oooO DODODODODODO podOoDoDoooogoodOoOo 3 Then 4 After that the LEDs were like this LED Off On Flashing 5 And now STANDBY LAMP ON BALLAST POWER 12 VOLTS 5 VOLTS TEMPERATURE FAN INTERLOCK SOURCE RS232 GLOBAL RS232 LOCAL REMOTE Service Repair Record SERVICE PROVIDER Company s Name Service Engineer or
64. ma Disable Temp Control Serial Status Serial Status Menu Overrun Noise Framing Parity Rx Tx 1 5 About the Remote Control The units can be controlled with the remote control and with RS 232 commands coming from a control computer It is often faster and easier during troubleshooting to use the remote control This section is an overview of the remote control A remote control is provided with each unit although you will probably only need one of them for the entire row of displays It operates likeaTV or VCR remote with IR infra red signals Aim the control at the screen When there are several displays in a row you may have to get close to the unit you want to control Otherwise you find yourself affecting two or three units Thereis a way around this which is explained below under How to control only one unit M any of the functions on the renote control will seem obvious Hereis an explanation of the main features e Theon and OFF buttons turn the lamp on and off It takes a few seconds for the lamp to light when you press the ON button OFF turns the lamp and fans off of course T he electronics remains on as long as there is power and the circuit breaker is on e ThemMenu button opens the main menu on the screen From this menu you highlight an item with the up down arrows Then press ENTER to activate the highlighted selection ThePREV MENU button closes the current menu and keeps th
65. manual was published The firmware is uploaded according to a script a series of instructions to the Procomm program T he correct script to use depends on the version of firmware already existing in the electronics module and the firmware to be uploaded Compatible Upload Files Firmware Version ScriptRequired to Load Product in the ProductNow the LatestFirmware Version VN 4020 V 573 0001 Rev G or higher Rev G to A wax VGA Big Picture Ran WN 5220 5 Rev AB to D wax old electronics I C orhigher Rev C D to D wax WN 5220 SD WN 5220 S 300 WN 5220 VIP 300 AorB orC Rev C wax new electronics SN 4210 WN 5240 S Rev B to B wax old electronics WN 5240 SD WN 5240 S 300 WN 5240 VIP 300 AorB Rev B wax new electronics VN 3820 VA WN 5230 5 WN 4030 S Athrough H ce M aterial IBM compatible PC running Windows 95 or later Procomm Plus communications software version 4 or higher 32 bit e RS232 cable wired straight through not null modem with 9 pin male on one end to mate with the Clarity display and 9 pin female on the other end to mate with the PC s Comm Port e Clarity software upload scripts and firmware code Installation Instructions 1 Install the Clarity software T his step is illustrated usingthe VGA software as an example your windows may be slightly different 2 Run the appropriate self extracting EXE program see tables above WinZip Self Extractor 573 0001 REY G EXE x
66. n lamp is considered a consumable and is warranted against failure for 30 days from the date of installation or first day of rental The replacement of other consumable parts are the Buyer s responsibility If any Product fails to conform to the written warranty Clarity s exclusive liability and Buyer s exclusive remedy will be at Clarity s option to repair replace or credit Buyer s account with an amount equal to the price paid for any such defective Product returned by Buyer duringthe warranty period provided that a Buyer promptly notifies Clarity in writing that such Product failed to conform furnishes an explanation of any alleged deficiency and obtains from Clarity a return authorization and b Clarity is satisfied that claimed deficiencies actually exist and were not caused by accident misuse neglect alteration improper installation repair or improper testing Clarity will have a reasonable time to make repairs to replace Products or to credit Buyer s account LIMITATIONS Any written warranty offered by clarity is in lieu of all other warranties express or implied Clarity neither assumes nor authorizes any other person to assume any other liabilities in connection with the sales or use of any product without limitation Clarity disclaims all other warranties express or implied induding any warranty of merchantability or fitness for a particular In no event will clarity be liableto buyer or any other party for procurement costs
67. perature There are two temperature sensors one near theLCD and one near the lamp T hese read the temperature and display it in the Temperature menu under the Misc Controls menu The limits are shown in this menu 60 C for LCD and 100 C for lamp Exceeding these values causes the Temperature LED to flash but it does not necessarily turn off the lamp The lamp will go out only ifthe Temp Control item in the Service Menu is enabled with an x The Temp Control feature is currently not functional Temperature Interlock TheT emperature Interlock is separate from the temperature measurement sensors It is a thermal mechanical device in the optical engine above the lamp If the lamp temperature goes too high the button on the top of this interlock will pop up the circuit will be opened and 350 volts will not go to the ballast which will shut off the lamp and turn off the temperature LED N CAUTION Do not reset the Temperature Interlock until you first determine the cause of the high temperature condition The Temperature Interlock system is design ed to work even if the electronics module is not operating properly Lamp Door Interlock Openingthe lamp door opens a micro switch which disables the 350 volts to the lamp ballast the lamp goes out and the interlock LED goes out AN WARNING The lamp is very hot for about one minute after it turns off Let it cool with the fan running for at least a minute before yo
68. power supply The connector closer to you 350V out to the To install the power supply 1 Install the IR sensor on top of the power electronics module with the black and white wires has a latch The other connector low voltage DC to the electronics module does not have a latch Release the wires from the cable clip that go to the IR sensor black black yellow red N caurion The connector on the IR sensor is NOT a connector Do not try to unplug it 5 10 Remove the remaining screw holding the power supply in placein the front The first screw came out with the hood Release the screw holding the power supply to the left wall The power supply is held in the back with tabs and slots Slide it to the rear a little and lift it off the tabs As you lift it out turn it so you can get to its left side where there is another connector Remove the connector on the left side AC input It has alatch Remove the two screws holding the IR sensor to the top of the power supply and remove the sensor The ground wire green yellow of this AC input is still connected to the power supply so that the sensor will be toward thefront Connect the green yellow wire coming from the AC switch and filter to the appropriate screw on the power supply Connect the AC input power to the con nector on the left side latch toward the top The power supply has slots for tabs on the ba
69. rms aussen nie 6 6 Service Menu 2 2 2222 1 8 3 6 6 14 SCUINGS rs asda a einge 6 13 6 14 shadow on screen cee es 4 8 Sharpness pecs doce Me et et ees Me ties 6 11 size image changing eee eee eee 4 2 SOUMCE2 Sass fate ced Set Se ht ae BE te ne 3 8 source button see ee ees 1 10 Standby iio a Se nn 3 6 6 17 LEDS Lona le 3 3 3 6 3 7 6 15 6 17 startup problems 2 22er een nn 6 17 startup sequence rarr nonor VE T EE nenn 3 3 Steady LEDS municiones ae ae SLB Se nA 3 9 stuck pixel annaua annann 4 11 4 12 switch circuit breaker oo oooooooo nnna 6 24 A A en De leere 3 3 System Hours 2 222 onen seen nenn 6 11 Temp Control een 3 6 6 14 temperature oi 3 6 interlock 2 2 22222222 eee eee 3 3 3 6 6 15 6 17 FED IO IO ee 6 15 LED naene na 3 3 6 13 6 15 MENU aie ee ee a ren 6 13 Sensor Ar Lem de laca od ines ata alcala 3 6 test patterns 222 1 8 3 2 4 2 4 3 6 13 thermal interlock ooo 3 3 6 17 tilt adjusting ei as oa lali Ais ak Boece elk gig 4 6 tree deeisioni ui 2 ns 3 10 troubleshooting 22 222222 ee ee ieie ie 3 2 3 10 Mo io o as tata aE 1 8 6 14 A ie amin GA aer ne 6 16 NA A E N ANI 1 8 ultraviolet light 22222220 een ren 1 4 unit definition Of o ooooooooooo 1 2 uploading firmware 0 cece eee eee 6 18 Vertical Mp ecco heeded gia ahr re 6 11 VN 3830 VA d
70. tely assembled including the LCD ribbon cable and the two thermal sensors To install the optical engine Before installingthe optical engine see that the ribbon cable is connected to theLCD and both temperature sensors are mounted on the optical engine 1 Movethe lamp plug and the two white AN caution It is important to secure the lamp connector to the top of the optical engine with screws If it is not screwed in place the next time a lamp is changed the connector will push up and the lamp will not connect wires for the thermal interlock out of the Connect the lamp plug and secure it with two screws way 8 Connect the ribbon cable to the If the two connectors on the right of the dectronics module Pressing down on it power supply are in the way disconnect should bring in the two latches at each them temporarily end Check that the ribbon cable cannot Look at the back of the optical engine and be lifted a a sine notice the alignment slot below the lens 9 pia the Tan cable to the electronics Look at the right side and notice the little step in the aa pl Where in oct 10 Connect the cable from the two tempera goes in the ch Mas wall ture sensors to the electronics module Place the optical engine in the space 11 FittheLCD Cover over thelens Snap it toward the front then slide it back When under the two clips near the power supply it is properly in place the holes in the Secure it with the screw to the
71. the ribbon cable cannot be lifted off Connect the fan cable Dress the cables into the clips along the front edge of the chassis and into the one above the electronics module Replace the hood if there is no more work to do in this area Ribbon DC Input to LCD IR sensor Fan Temp Sensors EA Electronics Module top view Interlocks Ballast Control DC from PS to Ballast Connector arrangement on electronics module Locations of 3 screws holding electronics module Bottom of electronics module Phillips screw driver points to ground wire connection screw 5 12 5 6 Removing the Optical Engine The optical engine can be removed as a single unit It is under the hood and held in place with two screws Removing the Optical Engine 1 Turn off the AC power at the circuit breaker switch and remove the power cord 2 Remove the hood p 5 2 3 The flat gray ribbon cable on the electronics module has latches on each side of its connector Push out on these to release the connector and lift it off The ribbon cable will stay with the optical engine 4 Disconnect the temperature sensor cable and the fan cable from the electronics module These wires will stay with the optical engine Remove the fan wires from the clip they go through AN CAUTION The connectors at the temperature sensors themselves on top of the optical engine are NOT connectors Don t try to pull them of
72. the standby mode Blinking during the lockout time Off if the unit is operating LAMP ON On if the lamp is operating Off if the lamp is off Flashes with LAMP TEMP if the lamp is over temperature BALLAST On if the 300V supply is working and providing power to the POWER lamp ballast 12 VOLTS On if there is a voltage on this line 5 VOLTS On if there is a voltage on this line TEMPERATURE Shows the status of the temperature of the LCD and lamp On if all measured temperatures are OK Flashes with LAMP ON if the lamp temperature is too high Flashes alone if the LCD is over temperature FAN On if the fan is operating properly Off if the fan is off Blinking if the fan has a locked rotor INTERLOCK On if all interlocks are closed normal operation Flashes if any interlock opens SOURCE On if a source is present at the VGA connector RS232 GLOBAL On very briefly if any RS232 activity is detected at the RS232 IN connector Off if there is no activity here RS232 LOCAL On very briefly if a valid RS232 command for this unit is received This includes all global RS232 commands sent without specific addressing and all commands addressed to this specific unit or the group that this unit is in REMOTE On very briefly when receiving IR infra red commands or when stray IR radiation is sensed 15 6 6 Connections Interlocks and Lockout This is a complete set of connector diagrams with pin designations Interlock informa
73. tion is on the following pace No connection To change the RJ 45 No Connection connectors to 9 pin D sub Transmit Data TXD connectors use a standard Ground earth RJ45 to 9 pin adapter and 12345678 Ground Earth Receive Data RXD No connection Yellow wire pin 3 No connection Black wire pin2 Green wire pin5 RS232 In RJ45 connector connect as follows 00 Y CO5 Un UNA No connection No connection Receive Data RXD Ground earth Ground earth Transmit Data T XD No connection No connection 12345678 00 Y NN UE UN Fe RS232 Out RJ45 connector 9 pin adapter connector 1 Red Video 9 No Connection 2 Green Video 10 Ground 3 Blue Video 11 No Connection 4 No Connection 12 No Connection 5 No Connection 13 Horizontal Sync Computer Input 6 Ground 14 Vertical Sync 7 Ground 15 No Connection 8 Ground Interlocks There arethree interlocks If any interlock opens the lamp power is shut off e Lamp access door When the lamp access door opens slightly a switch opens that shuts off lamp ballast power e Lamp thermal cutoff If the lamp temperature exceeds a safe limit a thermal cutoff switch opens which mechanically shuts off power from the lamp ballast This cutoff works even if something is wrong with the electronics module If this cutoff has been tripped something is seriously wrong Do not reset it until you correct the problem e F
74. u remove it Standby e Standby LED is off when the lamp is on 3 6 Standby LED flashes during a preliminary lockout period of about 15 seconds e Standby LED is on steadily if the unit is waiting for an ON command When you turn off the lamp the fan runs for another minute to cool it off Duringthis time the Standby LED flashes and you can t turn the lamp back on It is bad for the lamp and the ballast to try to light a hot lamp S Note Always turn off the lamp with an RS232 or remote control command and not by turning of the AC power If AC power fails for only one second the electronics module puts the system into a lockout state flashing the Standby LED and preventing the lamp from firing for one minute However when you turn the AC power on the system has no way to know whether the power has been off for one second and the lamp is still hot or it has been off for days and the lamp is cool Therefore the system always goes into lockout when AC power is first applied Auto Lamp On The display has Auto Lamp On enabled by default This feature is controlled in theMisc Controls menu With Auto Lamp On enabled the lamp turns on automatically at the end of the lockout period without waiting for a command Auto Restrike If the lamp does not ignite turn on within one minute after an ON command is given the electronics module goes into Standby and the Standby LED flashes for one more minute Then the ele
75. umb screws T he door is hinged so it can be removed so open it carefully 4 Loosen the captive screw and pull down on the wire handle 5 Don t touch the face of the new lamp This lamp gets very hot and oil from you skin is not good for it Don t reach up into the lamp cavity there is nothing to fix or play with up there and you are likely to touch something that shouldn t have your skin oil on it 6 The lamp has an arrow T he arrow should point toward the screen Push the new lamp into the lamp housing 7 Snap the pull handle up and out of the way 8 Tighten the captive screws to hold the lamp in place Finger tight is enough 9 Close the access door and tighten the thumb screws It doesn t have to be tightened with a screwdriver The screwdriver slots are there in case it was put on too tightly last time 10 Turn on the power with the circuit break er 11 Reset the Lamp Hours see below H ow to reset Lamp H ours Always reset the Lamp Hours timer when you install a new lamp The Lamp Hours reading has no control over the operation of the display but it will help you keep track of when to changethe lamp just like a car s odometer helps you keep track of when to change the oil 1 With the remote control press MENU 2 With the up down arrows highlight Hours and press ENTER This brings up the Lamp Hours menu 3 With the left right arrows highlight Yes and press ENTER This opens a confirm
76. urning the lens or mirror adjustment screw and not the screw next to it One screw holds the small bracket to the optical engine This screw has two black points on the optical engine poking up through the bracket The other screw has the thread lock and is the one to adjust 4 Movethe light beam up and down by moving the Condenser Lens up and down with the adjustment screw You will have to break the thread locking cement After adjusting there should be no shadow at the top or bottom of the screen 5 Movethe light beam left and right with the Mirror 2 adjustment screw You will have to break the thread locking cement S Note Itis not necessary to exactly center the light beam If the screen is illuminated uniformly that is sufficient 6 After adjusting use a thread lock cement to keep the screws from turningin the future 7 Reinstall the hood Up down adjustment Left right adjustment Light path adjustments on the outside of the optical engine Mirror 4 Projection Lens Fresnel LCD Polarizer Fresnel Mirror 3 Lens Arrays Polarizing Beam pa Array Mirror 1 Condenser Lens 10 Relay Lenses Diagram of optical engine parts 4 2 Functional Tests in the Field Here are some quick tests you can perform to see that the unit is operating within specifications Every display should be tested after it is repaired Input Levels have been properly set The or adjusted to verify that
77. valid Source Absent will show on the screen and the SOURCE LED will go off If the computer picture is black Source Absent will not be displayed Curtain is on Press MENU gt Curtain gt ENTER If Curtain hasan x press ENTER again e Test pattern is on Press MENU gt Misc Control gt ENTER gt Test Patterns Highlight Off and press PREV MENU twice Startup Sequence Turn on circuit break Circuit breaker switch If it does not light then AC power not present Check AC input er switch on bottom lights connections Check for presence of proper voltage at mains of display If circuit breaker switch turns off and its light goes out there is a serious overload condition If disconnecting AC and reapplying it causes switch to work properly replace the AC switch Check AC wiring beneath optical engine at AC input Change power supply After 8 seconds During the next 7 Other LEDs flash on and Check electronics module seconds off during initialization If it flashes alone LCD temperature is too high After this 15 seconds ae td If it flashes with INTERLOCK the thermal interlock on the lamp is initialization TEMPERATURE is lit tripped If it flashes with LAMP ON the lamp temperature is too high FAN is lit Check fan for obstructions that prevent it from turning Check fan connections FAN flashes if fan is trying to turn but cannot Close lamp door Check thermal interlock on top of optical engin
78. when the image is black N on operational dark pixel T his defect in theLCD appears as a black spot when the image is white This may be caused by dust on theLCD Scratches blemishes dust or lint These are opaque spots that are not non operational pixels e Scratches when they are present are usually in the laminated films on the LCD on the input polarizer or on the Fresnel lenses Scratches can also be on the screen itself e Blemishes are caused by foreign material contaminating the laminated films e Dust and lint on the mirrors usually don t cause a noticeable defect in the image However these things do affect the image when on the LCD Fresnes or polarizers Smudges are visible as an abrupt discontinuity in the uniformity of a white or gray image Generally these cover large areas but they are sometimes hard to see The cause is fingerprints on the mirrors LCD polarizer or Fresnels Test Conditions The unit being tested should be properly calibrated to a source which can display white black and gray images View the screen from straight ahead at a distance of about 1 5 meters Theroom should have between 300 and 700 Lux ambient illumination normal room lighting and a temperature of 20 to 25 degrees C Acceptance Criteria Bright pixels No more than 12 bright pixels as seen through a 5 filter no more than 5 bright pixels can be adjacent to each other Dark pixels These are counted if they are vis
79. x screw accessible from the rear or with a knurled knob behind the mirror at the bottom center p 4 4 Off color too much green too red too Color balance is incorrectly set Check values in Color Balance menu much of any color Set all Wht to 031 and all Gry to 007 Then color balance Color Balance is described in the User s Guide Old lamp some lamps change color Change the lamp p 2 2 near the end of their useful life Lamp ignites but screen is all black Curtain in On Press Curtain on remote Check Curtain item in main menu Test pattern is on Look in Misc Control Test Patterns Be sure the Off item has an x Problem Lamp ignites but image is all white Possible Cause s Solution s Image from source is black In this case display is operating correctly l you are using a laptop is itin sleep mode Test pattern is on Look in Misc Control Test Patterns Be sure the Off item has an x Ribbon cable from electronics module Check ribbon cable connectors at to LCD is disconnected both ends Latches at each side of connecter should be pressed toward center of connector The relaxed state of the LCD no signal applied is white No source Source Absent will be Check source led on bottom panel It displayed on screen is litif a valid source is detected at the PC connector 3 3 Discussion of Operation Knowing how the unit operates will help in troubleshooting problems Tem

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