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Aligning multiple projectors

4-3

5975636 ACTAS 2 170297

PROCEDURE FOR ALIGNMENT

The procedure for alignment of a wall is nearly the same
as that for a single stand-alone, except that in a wall a
reference projector is required.

Starting from scratch, follow the steps below to align the
projectors of a wall :

1. Check and modify items in the 'Set parameters'.
2. Use the 'Select/learn config' to select first a configu-

ration block (nr0 to nr19), then execute the 'Learn
config' command to let the ACTAS know the configu-
ration : how many projectors in a wall and their
addresses, and so on.

3. Prepare one projector to be used as the reference

projector (e.g. Projector 1).
In order to start with a reference projector that has
good light output characteristics, it is strongly advised
to prepare such a projector proceeding as described
in Chapter 3 'Alignment of a single projector', using
the reference kind 'C Temp' (e.g. on '6000K'), with
'Defocusing' on. Switch the setup for 'Init bri & con' to
'ON' to ensure a correct level of the brightness.

4. Use the 'Select/edit setup' to change the reference

kind from 'C Temp' to 'Custom' or 'G2'.

5. Execute the 'Get reference' command to allow the

ACTAS to obtain the reference values from the refer-
ence projector.

6. Start adjusting Projector 1 by executing the command

'Start adjust'.

7. Remove the Sensor from the adjusted projector, and

install it to the next projector to be adjusted.

8. Start adjusting by executing the command 'Start

adjust'.

9. Repeat Step 7 & 8 for the other projectors.

The items between brackets may be skipped, but need
to be checked. All the menus are explicitly explained in
Chapter 2. Please refer to the corresponding sections for
details.

Important :
Adjusting color temperatures must be done
after all other projector adjustments, including
geometry, convergence, G2 level, contrast modu-
lation and so on (Please refer to your projector
manuals).

Set Parameters

There are 3 editable items. Most of them are set correctly
by default. Fill in or edit the items as follows :

u

Auto pause mode : 'On' to prevent burn-in

u

Test picture

: any

u

Menu style

: 'Short' (or 'Advanced')

Projector ... Projector N

Example for N projectors, with the Projector 1 used as
the reference projector :

Projector 1

Projector 2

Aligning a single

projector

Select/edit setup

(Set parameters)

Get reference

Start adjust

Start adjust

Start adjust

(Send again)

(Send again)

(Send again)

Start adjust

(Send again)

(Select/edit setup)

Select / learn config

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43
44
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Содержание ACTAS 2

Страница 1: ...BARCO PROJECTION SYSTEMS Date 170297 Art No R5975636 R9827961 R9827968 OWNER S MANUAL ACTAS 2 Revision 02 ...

Страница 2: ...manual is subject to change without notice Produced by BARCO NV February 1997 All rights reserved Trademarks are the rights of their respective owners Printed in Belgium BARCO nv Projection Systems Noordlaan 5 B 8520 Kuurne Belgium Printed in Belgium ...

Страница 3: ... menu 2 2 Selecting menu style 2 2 Selecting auto pause mode 2 2 Selecting test pictures 2 3 Test pictures for color alignment 2 3 Basic concepts about color alignment 2 3 Test pictures generated by the ACTAS Interface unit 2 4 Test pictures generated by a host computer linked to the ACTAS 2 5 Test pictures generated by a manually controllable source 2 6 Test pictures generated by a fixed source 2...

Страница 4: ... 2 22 Setting the extra stabilization time 2 22 Start adjust menu 2 23 Send again command menu 2 23 Show unadjusted projectors command menu 2 23 Remote control command menu 2 24 The Adjust keys mode 2 24 The Pause Unpause mode 2 24 The stand by operate mode 2 25 The contrast brightness mode 2 25 CHAPTER 3 COLOR ALIGNMENT OF A SINGLE STAND ALONE PROJECTOR Connections 3 1 Communication connection be...

Страница 5: ...on 4 4 Get reference 4 4 Select Edit Setup 4 4 Start Adjust 4 5 Send Again 4 6 CHAPTER 5 ERRORS AND WARNING MESSAGES Adjustment obstacles 5 1 Hardware problems 5 2 Projector communication problems 5 2 Host computer communication problems 5 3 Trouble shooting 5 3 APPENDIX A SPECIFIC REMARKS ABOUT VIP CUBE APPENDIX B SERIAL COMMUNICATION General B 1 Master Slave configuration B 1 RS232 formats B 1 C...

Страница 6: ...e is explained and its setup The ACTAS software is described in Chapter 2 Procedures for aligning a single stand alone projector can be found in Chapter 3 and for a projector wall in Chapter 4 When problems occur you can refer to Chapter 5 for possible causes and solutions At the end there are two appendices one concerning the VIP cube the other concerning the RS232 communication protocol used by ...

Страница 7: ...th 5 BNC to BNC connectors Z348331 1 Cable with male to male DIN mini 8 connectors Z3420076 1 Light cover R805734 1 Owner s manual R5975636 1 Sensor Control Unit Interface Light cover Cables UNPACKING THE ACTAS All parts of the ACTAS are nicely packed and placed in a flight case For protection during the transport the flight case is put into a matching carton box The following items are included i...

Страница 8: ...rojec tor one for the host computer There is also a power indication lamp LED When the power is on the LED will illuminate On the rear panel of the ACTAS Interface there is a power cord with a 3 wire grounding plug for the power mains supply There are 4 BNC connectors marked as TEST PICTURE OUTPUT These connectors supply the test pictures for the ACTAS alignment Rear panel AC power cord with a 3 w...

Страница 9: ...andard BARCO Remote Control Unit RCU ADJUST key to enter the edit mode EXIT key to return without saving changes or to stop adjustment ADDRESS key to start up the initialization process ENTER key to save changes or to confirm a selection ARROW keys Left Up Right Down keys to make selections inside menus Note The function of each key will be explicitly explained in Chapter 2 The Control Unit provid...

Страница 10: ...to sensors and an A D convertor There is a DIN mini 8 port provided on the Sensor unit for connecting to the Control Unit The supplied light cover black cloth is used to place over the grips when strong ambient light is present during the alignment process The connecting cable can be passed through openings in the cloth TO CONTROL UNIT port for connecting the Control Unit Milled edge screws Grip f...

Страница 11: ...TO CON TROL UNIT located on the front panel of the Interface unit u Insert the connector at the other end into the port marked as TO INTERFACE locatedonthebot tom end of the Control Unit v v Connecting the Control Unit to the Sensor unit Use the supplied cable with male to maleDINMini8connectors Part No Z3420076 u Insert the connector at one end to the port marked as TO SEN SOR located on the fron...

Страница 12: ...e ensure that this apparatus meets the power requirement in your country If the power cord of the Interface is equipped with a ANSI73 11 plug the factory preset power voltage is 120 VAC 60mA 50 60 Hz IfthepowercordoftheInterfaceisequippedwithaCEE7 plug the factory preset power voltage is 230 VAC 40mA 50 60 Hz If in doubt consult a qualified technician for voltage adaptation Power Adaptation To ada...

Страница 13: ...ety earth White Neutral Black Line Live ANSI 73 11 plug 2 For nominal 230VAC operation proceed as follows u Change the line fuse to a 80mA slow blow type fuse u Removethetwo120V markedas110V soldered links on the module see fig b u Solder one link provided for the 230V operation fig a u Remove the existing plug from the power cord andstripthewirestoattachtheappropriateCEE7 power plug line fuse T80...

Страница 14: ...ommand menus will be displayed u Send again u Show unadjusted projectors u Remote control u Set parameters u Select learn config u Get reference u Select edit setup Use the ç ç key or è è key on the Control Unit to select a desired menu Press the ENTER key to enter the selected path or execute the selected command start up messages THE ACTAS SOFTWARE Press the è key Press the è key Press the è key...

Страница 15: ...dvisable to use the short style To change the style u Press the ADJUST key to enter the edit mode u Use the é key or ê keys to toggle between short and advanced u Press the ENTER key to save the style or press the EXIT key to return without changes Selecting auto pause mode When the ON mode is selected the ACTAS puts the adjusted projector in pause to prevent the burn in of the picture tubes To ch...

Страница 16: ...r éê change çè other ENT save EXIT quit Edit parameters Test picture blocks éê change çè other ENT save EXIT quit Edit parameters Test picture window ADJ edit çè other EXIT quit TEST PICTURES FOR COLOR ALIGNMENT Basic concepts about color alignment To evaluate colors properly a correct reference is needed In professional terminology it is named as White Balance By adjusting the White Balance we ca...

Страница 17: ...out 3kHz when the scan frequency is around 100kHz Vertical scan frequency u Range 42Hz to 150Hz u Resolution on the Control Unit this is programmable in 1Hz steps Sync type u RGsB sync on green non interlacing u RGB_S sync separate non interlacing u RGsB interlace sync on green interlacing u RGB_S interlace sync separate interlacing Test picture patterns for evaluating results u Window also used f...

Страница 18: ...uces gradually the same princi ple applies to the other margins Test pictures generated by a host computer linked to the ACTAS When the host computer is connected to the ACTAS through the RS232 connection marked as TO HOST on the ACTAS Interface unit the host computer can generate the test pictures replacing the output from the generator of the ACTAS Interface upon request from the ACTAS Control U...

Страница 19: ...yed on the ACTAS Control Unit When the message Set source to 20 is displayed the user has to switch on the low light test picture When it is ready press the ENTER key the adjustment will be carried out automatically in case the adjustment mode is set to Auto please refer to Page 2 11 When the message Set source to 60 is displayed the user has to switch on the high light test picture When it is rea...

Страница 20: ...ojector to be adjusted must be either in operation or in pause In case of a wall system all projectors in the RS232 chain must operate at a baud rate of 9600 and have unique addresses If a host computer is connected and generates the test pictures on request of the ACTAS Control Unit the address 252 must not be used as well in addition to the 253 and 254 addresses In the Select config command menu...

Страница 21: ...Press the ENTER key Get reference into setup nr 6 Ref kind G2 ADJ start EXIT Bri contr 48 60 Press the ADJUST key e g Low reference RGB 123 456 789 References stored ADJ again EXIT SELECT EDIT SETUP MENU This function allows you to select a Setup block and edit settings of the Setup Selecting a Setup memory block After the ENTER key is pressed in the Select edit setup menu the Select setup menu wi...

Страница 22: ...s è Press è Press è Press è Press è Edit setup nr 2 Left margin 0 ADJ edit çè other ADDR deflt EXIT quit Edit setup nr 2 Right margin 0 ADJ edit çè other ADDR deflt EXIT quit Edit setup nr 2 Top margin 5 ADJ edit çè other ADDR deflt EXIT quit Edit setup nr 2 Bottom margin 5 ADJ edit çè other ADDR deflt EXIT quit Edit setup nr 2 Measuring freq 10Hz ADJ edit çè other ADDR deflt EXIT quit Edit setup ...

Страница 23: ... set to the default values for the selected projector type Foradjustingaprojectorautomatically thus not in the manual mode the ACTAS needs to know what adjustments are available and what their ranges are Therefore an identification of the projector type is re quired This can be done automatically by defining the type as Auto or Search In caseofnon definedprojectorstheusercan use the above procedur...

Страница 24: ...s Auto adjustment mode The auto mode allows the adjustment of gains and cut offs to be carried out automatically through the RS232 input of the projector After pressing the ENTER key in the Start adjust menu messages will be displayed on the LCD display of the ACTAS Control Unit to report the automatic adjustment process 1 If the projector is in pause it will be set to the operational mode 2 Then ...

Страница 25: ...djust çè other command 0 G 0 R B Cut off ENT gain EX 0 G 0 R B Gain ENT cut off EX Edit setup nr 2 Ref kind 4 C Temp ADJ edit çè other EXIT quit Edit setup nr 6 Ref kind 4 C Temp éê change çè other EXIT quit Press the ADJUST key Edit setup nr 6 Ref kind C Temp éê change çè other ENT save EXIT quit Press the ê key Edit setup nr 6 Ref kind G2 éê change çè other ENT save EXIT quit Press the ê key Edi...

Страница 26: ...ll be displayed to report the saving pro cess If the EXIT key is pressed the changes will be discarded A message will be displayed to report the reverting process For the C Temp the step Get reference is skipped The required values are calculated from the entered color temperature For these calculations however the ACTAS needs to know the picture tube characteristics Therefore after the value of t...

Страница 27: ... 7MS 7MSP 7MSPA 7MFP 9MSA M180 T180 2208 2208EBU If Auto is selected the ACTAS will use the Proj type content to choose the corresponding phosphor type If a special tube set or additional color filtering is used setting Phosphor to Custom allows you to enter the color coordinates under Red x Red y Green x Green y Blue x Blue y To select a phosphor type u Press the ADJUST key to enter the edit mode...

Страница 28: ...ness and Contrast values are then sent to the projector before adjusting it When a Get reference command is executed the ACTAS reads the values from the projector and stores them under the items Brightness and Contrast The values can be altered by the user if needed To switch the Initialization ON OFF u Press the ADJUST key to enter the edit mode u Use the é and ê keys to toggle between ON and OFF...

Страница 29: ... nr 2 Contrast 50 éê change çè other ENT save EXIT quit Edit setup nr 2 Contrast 60 éê change çè other EXIT quit Edit setup nr 2 Contrast 60 ADJ edit çè other EXIT quit Press è Press ADJUST Press é twice Press ê Edit setup nr 2 Brightness 56 Saving Edit setup nr 2 Brightness 56 éê change çè other EXIT quit Edit setup nr 2 Contrast 52 Saving Edit setup nr 2 Contrast 52 éê change çè other EXIT quit ...

Страница 30: ...ting test pictures Only available in the Advanced menu style As explained in the previous sections the test pictures can come from 4 kinds of sources the ACTAS Interface unit a host computer a fixed external RGB signal generator and a manually controllable external RGB signal generator To select the source u Press the ADJUST key to enter the edit mode u Use the é and ê keys to select the desired s...

Страница 31: ...r EXIT quit Edit setup nr 2 V freq 130 Hz éê change çè other ENT save EXIT quit Edit setup nr 2 V freq 150 Hz éê change çè other ENT save EXIT quit Edit setup nr 2 V freq 150 Hz éê change çè other ENT save EXIT quit Edit setup nr 2 V freq _50 Hz éê change çè other EXIT quit Edit setup nr 2 V freq _50 Hz ADJ edit çè other EXIT quit Press è Press ADJUST Press é Edit setup nr 2 H freq 16645 Hz Saving...

Страница 32: ...vel lo 41 éê change çè other ENT save EXIT quit Edit setup nr 2 Window level hi 80 éê change çè other ENT save EXIT quit Edit setup nr 2 Window level hi 70 éê change çè other ENT save EXIT quit Edit setup nr 2 Window level hi 60 éê change çè other ENT save EXIT quit Edit setup nr 2 Window level hi _60 éê change çè other EXIT quit Press ENTER Setting horizontal and vertical segments Only available ...

Страница 33: ...t margin 10 éê change çè other ENT save EXIT quit Edit setup nr 2 Left margin _0 éê change çè other EXIT quit Press è Press é Press ADJUST Edit setup nr 2 Left margin 18 Saving Edit setup nr 2 Left margin 10 éê change çè other ENT save EXIT quit Press é 8 times Edit setup nr 2 Left margin 18 éê change çè other EXIT quit Edit setup nr 2 Left margin _0 ADJ edit çè other EXIT quit Edit setup nr 2 Bot...

Страница 34: ...easuring freq 8 Hz Saving Press ENTER Edit setup nr 2 Measuring freq 8 Hz éê change çè other EXIT quit Coarse adjustment ON OFF Only available in the Advanced menu style During the adjustment process the ACTAS approaches the target values in two ways u Either with successive approximation initially using coarse steps To allow the ACTAS to carry out the coarse adjustment the option coarse adj must ...

Страница 35: ...rs the extra stabilisation time from 0s to 5s Edit setup nr 2 Extra stab time 0s éê change çè other EXIT quit Press ADJUST Edit setup nr 2 Extra stab time 5s éê change çè other ENT save EXIT quit Edit setup nr 2 Extra stab time 5s Saving Edit setup nr 2 Extra stab time 5s éê change çè other EXIT quit Press ENTER Press é 5 times Edit setup nr 2 Extra stab time 0s ADJ edit çè other EXIT quit Setting...

Страница 36: ...r some reason the ACTAS adjustments cannot be carried out in the projector s settings block that should be used for the application After the ACTAS completes the adjustments and the projector is reconnected to its normal picture source by using the function Send again the gain and cut off valuesobtainedwillbecopiedintotheprojector smemory block that belongs to that normal picture source Please not...

Страница 37: ...hanges The button keys labelled as ADJUST ENTER EXIT é ê ç èon the ACTAS Control Unit serve as button keys on a Remote Control Unit for the addressed projector and do not control the ACTAS any longer Only the ADDRESS button is reserved and is used to return to the interme diate dialog REMOTE CONTROL ENT adjust keys çè other function EXIT Press ENTER REMOTE CONTROL éê other address ENT 6 EXIT REMOT...

Страница 38: ...to put all projectors out of the operational mode Press EXIT to quit REMOTE CONTROL ENT contr bright çè other function EXIT Press ENTER è inc brightness ç dec brightness é inc contrast ê dec contrast EXIT Press è to increment the brightness Press ç to decrement the brightness Press é to increment the contrast Press ê to decrement the contrast Press EXIT to quit The Contrast brightness mode With th...

Страница 39: ...inal Ready 5 GND Signal Ground 6 DSR Data Set Ready 7 RTS Request To Send 8 CTS Clear to Send 9 Ring Indicator If a cable other than the supplied is used then it should have at least pin numbers 2 3 and 5 interconnected to the corresponding pins RGB connection between the ACTAS Interface unit and the projector or video splitter Use the supplied cable with 5 BNC to BNC connectors through the TEST P...

Страница 40: ...1 for details Now all preparatory works are complete the ACTAS can be used to do the color alignment INSTALLING THE ACTAS SENSOR ONTO THE PROJECTOR After the connections are complete the ACTAS Sensor must be installed onto the projector to be adjusted Installation procedure 1 Open the claws wider by turning the grips counter clockwise 2 Turn the milled edge screws that fix the outermost grips once...

Страница 41: ... is only to be used in the rare cases where the ACTAS adjustments in the previous step were not carried out on the same projector block as on the one that is used by the application If the ACTAS Interface was chosen to act as the test picture generator check if there really is no way to make it imitate the target source 1 Check and modify items in the Set parameters 2 Use the Select learn config t...

Страница 42: ... system u Connect the first projector in the chain as a single stand alone projector to the ACTAS Interface unit see Chapter 3 p 3 1 u Connect the video splitter to the Video signal of the TEST PICTURE OUTPUT on the ACTAS Interface through one BNC connector see Chapter 3 p 3 1 Walls of the MVGS EOS system If it is a MVGS EOS wall the RGB signal paths remain untouched the ACTAS Interface Unit RGB s...

Страница 43: ... Transmitted Data 4 DTR Data Terminal Ready 5 GND Signal Ground 6 DSR Data Set Ready 7 RTS Request To Send 8 CTS Clear to Send 9 Ring Indicator IN OUT RS232 IN OUT RS232 IN OUT RS232 IN OUT RS232 IN OUT RS232 IN OUT RS232 ACTAS Interface Control unit ACTAS Host computer RGB RS232 RS232 If a cable other than the supplied is used then it should have at least pin numbers 2 3 5 6 and 8 interconnected ...

Страница 44: ...tom or G2 5 Execute the Get reference command to allow the ACTAS to obtain the reference values from the refer ence projector 6 StartadjustingProjector1byexecutingthecommand Start adjust 7 Remove the Sensor from the adjusted projector and install it to the next projector to be adjusted 8 Start adjusting by executing the command Start adjust 9 Repeat Step 7 8 for the other projectors The items betw...

Страница 45: ...ave bad influence on color matching Important G2 levels should be set correctly in all projectors of the wall before carrying out the step Get reference or Start adjust Even if the projector has ABL Automatic black level Contrast modulation also need to be adjusted in ad vance When the reference projector is operating as desired place the ACTAS Sensor unit onto the next projector to be adjusted as...

Страница 46: ...3 0 B gain 50 Iterat 1 EXIT abort Press ADDRESS Press the ENTER if the pro jector address is right Use the ç or è to select thecorrect projectoraddress Press the ENTER key to confirm Focus projector B minimum When finished ENTER if Defocus on Defocus projector 0 B EXIT skip defocusing When finished ENTER These menus will not be displayed if the option Defocus is set to off For adjusting projectors...

Страница 47: ...the test picture generator check if there really is no way to make it imitate the target source Tip In installations where the source types or frequencies are switched regularly it can be useful to use the send again command to copy the color settings to the other blocks of the projector This works best if no switching is done to the source types that involve different projector circuitry in the v...

Страница 48: ...t their mutual influence is too important choose these levels further apart u The picture is too noisy so that the light output measurements are unstable check picture quality u Too many communication retries have to be done check whether the projector is not continuously receiving infra red commands during the adjusting process u Strong and varying ambient light penetrates the lenses use screenin...

Страница 49: ... PROJECTOR COMMUNICATION PROBLEMS When communication with for example the projector 6 is disturbed a warning message will be displayed for about 1 second the hex number between square brackets indicates which serial command code was to be performed Afterwards the ACTAS Control Unit will retry 2 more times if unsuccessful an error message will appear and further ACTAS activities will be stopped The...

Страница 50: ...ating for blue phosphor saturation just leave the blue tube to an acceptable defocusing level u Projector RWI software version is too old use V4 08 5 08 1 17 or more recent versions Problems Nothing displayed on Control Unit display Interface powered but LED not lit Error message Proj doesn t listen Message 0 proj found in learn config Measured reference values too low high Error message Host comp...

Страница 51: ...f contrast have their corresponding names in the ACTAS dis play i e the Main contrast and the contrast Brightness The brightness expressed in percentage displayed on the ACTAS Control Unit differs from the brightness percentage indication on the projector because the latter follows a non linear relation Nevertheless if the option Init bri con is switched on the values will be correctly duplicated ...

Страница 52: ...s will interpret the following bytes and do what is requested by the master The other slaves will restart checking for the STX on the serial line If 02 appearsinthedatabytesfollowingtheSTX slaves which did not recognise their address will be confused They might even interpret the following bytes in a wrong way reacting unpredictably To avoid this a protocol is used which avoids the appearance of 0...

Страница 53: ...only the signals RxD and TxD are used for the communication there is no way to detect if there is a slave listening or if there is one listening whether it receives the data correctly Therefore the communica tion protocol expects a standard ASCII byte ACK 06H or NAK 15H from the slave ACK acknowledge NCK not acknowledge It is very important that when the master asks the slave for information that ...

Страница 54: ... 620 kHz 50 Hz will produce the following hex answer from HOST FC 4A 0F 3E 32 00 C5 SET_INT_PATT 61H Command similar to an already existing one in projec tor control Purpose sets ACTAS Interface frequencies invokes no picture update Cmd Dat1 Dat2 Dat3 Dat4 61H fH h fH l fV Sync type Dat1 fH h kHz digits Dat2 fH l 2 digits after the decimal point of the kHz value Dat3 fV Hz digits Dat4 Sync type bi...

Страница 55: ...HOST for a white window of 1 5 width and height with 60 grey level 02 00 FC 78 01 46 07 33 F5 WRITE_POT 79H Purpose for setting parameters in ACTAS Interface invokes no picture update Cmd Dat1 Dat2 Dat3 Dat4 79H param 00H value 00H Dat1 parameter Dat3 0 h_seg value 1 v_seg value 2 l_margin value 3 r_margin value 4 t_margin value 5 b_margin value 6 corner value USE OF THE SERIAL COMMANDS u Before t...

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