1. Administrator Training Overview-D2
Greyhawk 2
Version: April 2009

2. Overview
Introduction
Components
Technology
Barco Wall Control Manager

3. OV-7xx

4. OV-5xx

5. Wall naming convention
OVf-SRR
OV= overview
S = screen size
5 = 50 inch
7 = 70 inch
8 = 80 inch
10 = 100 inch
RR = resolution
08 = XGA = 1024x768 = ~ 8
13 = SXGA = 1280x1024 = ~13
15 = SXGA+ = 1400x1050 = ~15
f = front accessible
Examples :
OV-508
OV-715
OV-1013

6. Screens Rear projection screen requirements Viewable from all angles
High contrast
Focused
Minimal reflection
Cleaning of screens :
Avoid to touch screens !!!!
See user manual for cleaning instructions.
HVA screen
The screen has a very good contrast level and wide viewing angles. The screen is recommended for all applications except where speckle is an issue.
HVM screen (cross prism screen)
While featuring higher brightness and about the nearly complete absence of speckles, this screen is softer and is more susceptible to color differences between screens. Thus the screen is recommended mainly for utilities applications with black background or for video intensive applications where the tiling color/brightness uniformity is less an issue, e.g. in non-backdrop broadcast applications or surveillance applications.
HVX screen (single prism screen)
This screen has a very high gain and consequently a very high brightness on-axis. This luminance level is most probably not in sync with the luminance level of other task areas in the control room. Due to the non-adequate luminance level, the big differences between brightness on-axis and off-axis, and due to the low vertical half gain angle and the trend to some ghost images.

7. Screens Screens can be mounted in different ways.
Expand/shrink due to temperature and moisture
Canned
Minimal gap between screens
Visible gap
Only 50” and front access 70 “
Canned – seamless
No gap
Screens push against each other
Only 50”
Stitched
Small needle like wires hold the screens together
No gaps
Only from 70” onwards
Both Seamless Canned and Stitched technology allow the screens to move, expand and contract, when the ambient conditions for the control wall change.
Canned seamless: screens are pushed together with a spring system in the screen structure, the screens are not connected to each other
Stitched: screens are stitched together with metal thread at time of installation.

8. Components : Projection Unit
DVI 1 with loop through
DVI 2 with loop through
LAN interface (<-> GH1 Serial interface)
Communication + power Interface to IU
Lens (Two possible types XGA <> SXGA)
Sealed optics core
Cooled housing containing al electronics:
PICO 4 board
2nd input board (dual link DVI)
formatter Board with DMD chip

9. Projector Alignment
Correct geometry on the screen by tilting the projector in its frame
Service personnel only !
Don’t touch screws that are fixed with Red paint. They are never needed for adjustments.
Best sequence for alignment:
Keystone
Shift
Rotate
Repeat from Keystone until alignment is satisfactory

10. Components : Illumination unit
Part list:
Top lamp door
Bottom lamp door
Glass window in lamp door
Air filter pad
Mains Power Switch
Standby / Reset switch
Lamp selection switch
LCD display
Light interface to PU with UV blocking filter
Air interface to PU
Communication/power Interface to PU
Power connection for mains cable

11. Components : Dual Lamp system
120W/132W lamp
two lamps in each projector
Switch automatically upon failure
Lamp lift mechanism
This results in
Fast lamp replacements
Possibility to automatically re-calibrate the PU color sensor by comparing this color spectrum with the Sensors measurements.
Lamp can be set from 120 to 132 Watt
10 % more light, but
BUT 6,000 hours instead of 10,000 hours expected lifetime !!!
License required. (See BCM-BLM section)
Option for alternative 180W lamps.
A lot more light but,
Expected lifetime 6000 hrs.

12. Components : Intelligent Lamps
120W/132W lamp
power
Lamp ID chip
The lamp swap is plug and play:
Position via the sliders in the illumination unit ensures good contact for the power connection
The lock hold the lamp in place.
The OV2 lamps have a chip inside that stores :
Serial number
Lamp runtime
Color spectrum
Optimal lift position (lamp optimization)
Lamp is cooled by it’s own fan
the cooling goes through the housing of the lamp for better performance
Air inlet for burner cooling
Mounting handle and locking mechanism

13. Lamp cut-off voltage – lamp retry
When lamps get older they can
Simply stop working and refuse to start again
Explode…… : no danger !
The lamps are Ultra High Pressure (UHP) lamps.
They contain two electrodes that start up and maintain an arc. This arc is the source of the light.
As the lamp ages:
The electrodes ware out.
The resistance between the electrodes rises (With stable current: the voltage over the lamp rises)
The light becomes dimmer as the glass is more and more blackened
When the voltage over the lamp in normal operation exceeds a certain value (cut-off voltage), the lamp driver will indicate lamp failure. However, the voltage rise could have multiple causes (voltage fluctuation).
In that case, it is possible to reset the lamp and retry it.
Often the lamp can be reignited and used again.
However, if it no longer ignites, you should not try to ignite it again, but replace the lamp in stead.
120W-132W cut-off voltage: 138V
Graph not representative, for illustration purposes only !

14. Maintenance actions Defective lamp : Air Filter Replacement
Retry lamp first (reset error + reselect lamp)
When fails again (same day)
Replace lamp
Lamp warm-up – wait 2 min.
Optimize the new lamp! (only possible in service mode).
Air Filter Replacement
Dependent on Contract and/or Need
Don’t shake the dirty filter
Dispose used filters – DO NOT CLEAN

15. Components : Typical delays & button functions
Cooling / warming : 2 min
Color stabilizing : 5 min
Overtemp before shutdown : 5 min
On/Res button: Up
1-3 sec: switch on from standby
4-8 sec: toggle between IP address and error status
> 10 sec: reset lamp error
Down
1-3 sec: switch to standby
4-8 sec: not used (yet)
>10 sec: self diagnostic of IU

16. What’s inside the projector units ?
Technology
What’s inside the projector units ?

17. Technology : DLP chip DLP-chip technology
One chip containing more than 1m mirrors
Each mirror representing one pixel
Pixel value is created through reflection time modulation
See movie...
Movie:
dlp_demo.exe

18. Light-path

19. Technology : PU - Color sensor
Allows the BCM software (see further) to
Have equal brightness on every projector
Have equal color on every projector.

20. Barco Wall Control manager (BCM)
Controlling all your walls from an easy to use software

21. Network Interfacing: Wall Control Network
All projectors are connected to a network.
Or directly to the customer bussiness network
Or isolated through the BCM server.
Clients only connect the BCM server

22. BCM for administrators – simple view
Features
Overview of cubes
Shows health
Multiple walls
Can generate reports
Logins/Passwords : (lowercase)
operator/barco
admin/barco

23. BCM for administrators – lamp view

24. BCM for administrators – input view

25. BCM: Brightness Lock 3 basic modes: Uncalibrated Brightness locked
Brightness locking not active so dimmer wheel stays in last known position.
Color correction not active so native colors are shown.
Brightness locked
The brightness is dynamically controlled with the dimmer wheel by using only the brightness information of the color sensor. The colors are static.
Sense 6 (License required, see BLM)
Next to Brightness, color is also dynamically controlled. This is done with the DMD chip.
MENU, WALL, COLOR & BRIGHTNESS MODE
Uncalibrated:
shipment standard (no calibration data available)
Brightness locked: (Menu, Wall, Properties, Brightness Lock:)
Disabled: Projector does not update any color or dimmer setting.
Maximized: All projectors are continuously aligned for a light output equal to the highest output of the dimmest lamp
Fixed: All projectors are continuously aligned for a light output equal to a set value
Sense 6 (Menu, Wall, Properties, White Point & Gamut)
Apply Average White: The average off all available lamps is calculated as white target. The gamut may be slightly less because of the adjustment. (preferred setting)
Apply Max Gamut: To have maximum amount of available colors for all lamps, white target may differ from average.
Set custom white point

26. BCM for administrators
Problems or alarms
Severity :
Green
Yellow
Orange
Red
Recommended solution

27. BCM: License Following options will require licenses:
Hot standby
Sense6
High power (120 -> 132 W)
Scaling
Checking for the required licenses:
Via BCM, Help menu
Scaling: In case of a missing license file, the image is always shown original (native) resolution

28. Questions ?