GeoBox G-301 Owner's manual

G-301 Quick User Manual Document: G-301102
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1
Features
1. Full HD input and output
2. Loop ack for 3 projector stacking
3. Precise geometry adjustment
for easy
system installation and stacking
4. New 2D to 3D conversion technology
5. Convert 3D for 2D TV display
6. Support HDMI 1.4 standard 3D
formats from Blue Ray, PC…
7. Multiple input ports to allow flexi le
input source selection
8. 3D demultiplexer into RH/LH for
passive 3D display
9. User friendly OSD and IR remote
control. No PC is required
10. IR extender & RS-232 control
11.Allow same setup for 3D display and
high rightness 2D stacking
12. Support curved screen 3D display
FCC/CE statement
Note: This equipment has een tested and found to comply with the limits for Class B digital devices, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasona le protection against harmful interference in a residential/office installation. The equipment
generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can e determined y turning the equipment off
and on, the user is encouraged to try to correct the interference y one or more of the following measures:
--Reorient or relocate the receiving antenna.
--Increase the separation etween the equipment and receiver.
--Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
--Consult the dealer or an experienced Radio/TV technician for help.
--Changes or modifications not expressly approved y the party responsi le for compliance could void the user's authority to operate the
equipment.
G-301 Passive 3D control Box Quick User Manual
Thank you for choosing GeoBox. GeoBox is an advanced dual channel video processor
with patented warp technology. It is a standalone system capable of image stacking, 2D
to 3D conversion and 3D demultiplexer with precise geometry adjustment. No additional
video distributor, tool or computer is required for the setup of GeoBox.
Figure 1
F
igure 2

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Outlook and Functions
Minimum Equipment required for 3D display
Installation process for 3D display
1. Install projectors & screen to let projection images a little over the screen without going through GeoBox.
Make sure to avoid heat ventilation interference in the setup.
2. Connect all the cables and GeoBox RH output connects to RH projector and LH output to LH projector.
3. Reset GeoBox to factory default settings via OSD [Option] menu to make sure no unexpected settings.
4. Set polarizer into RH & LH projectors before geometry alignment. Make sure the RH/LH polarizers are set
in correct projector, direction and angle with distance of 5-15cm to the lens to avoid thermal damage.
5. Blue Ray player should be set at AUTO 3D (or 1080p@24Hz) for 1080p frame packing 3D display.
6. For 2D to 3D conversion 3D display, disable @24/30Hz output in Blue Ray player.
7. Turn on all devices. Some projector will search input source several times due to input timing change and
HDCP validation. GeoBox will automatically connect to input source. Then the screen will show up with
double images. To set HDMI as projector input may reduce the time for input searching. If no input source
is detected, GeoBox will go into power saving mode. The screen will show [Power Saving Mode] message
and GeoBox front panel LED will turn to yellow.
8. Select correct input source and set output resolution to match projector native resolution.
9. Make sure two projectors are in good focus and have the same settings.
10. Use [OSD Time] hot key in remote controller to set OSD Time Out to [Off] to show OSD & grid pattern all
the time during image alignment and 3D settings period.
11. Align two projector images together via [4 Corner] adjustment.
12. [3D Properties] setting to get correct input format and 3D settings with the best performance.
13. Test the final result and 3D performance.
1. 1x GeoBox
2. 2x Projectors (Native resolution above XGA
with HDMI input connector)
3. 2x polarizers (For RH & LH eyes)
4. 1x 3D screen (silver matte)
5. 3D glasses (Paired with polarizer)
6. 3x HDMI cables
7. Video source with 3D content

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Two projector Image alignment procedures using remote controller
1. Power on the system after installation,
dou le images will appear on the screen.
2. During [4 Corner] adjustment, to apply 2D
signal or disconnect the input source from
GeoBox, grid pattern will show up with 50 x
50 pixels in each grid for accurate alignment
3. Each grid pattern size will e 50 x 100 pixels
if GeoBox is in 3D display mode.
1. Press [Pattern] key to show Grid pattern in
CH-A. Continuously press [Pattern] key will
change the grid color.
2. Press [CH A/B] key to switch to the 2
nd
channel, then press [Pattern] key again to
show grid pattern in the 2
nd
channel.
3. Left figure shows CH-A in Red and CH-B in
Green color.
1. Press [4 Corner] key will show [4 Corner]
OSD menu in one channel and another
channel still retain grid pattern.
2. Select the corner to e adjusted y OSD
direction keys.
1. After press [OK] key, a Green Mark will e
showed at the corner to e adjusted.
2. The figure shows CH-B Top Left corner is
under adjusting.
3. Use OSD direction keys to adjust the
position of the corner into screen order.
1. When finish the adjustment in Top Left
corner in CH-B, don’t press [OK] key.
2. Press [CH A/B] key to switch to CH-A.
3. [4 Corner] OSD menu for CH-A will e
showed, then press [OK] key, a RED Mark
will e showed at the corner to e adjusted.
4. If grid pattern disappears, press [Pattern] &
[CH A/B] keys to activate grid patterns in
oth channels
.

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The above [4 Corner] alignment process can be applied to both 3D alignment and Image
Stacking in flat screen display. If curved screen 3D display is required, user needs to use
[Warp] function in OSD menu to align the images from two projectors together. [Warp] function
includes [Shift] (4 Corner adjustment), [Corner] curve, [Edge] curve and [Center] curve
adjustments.
Use OSD direction keys to adjust CH-A Top
Left corner to match CH-B, then press [OK] to
go to next step.
1. After press [OK], it will show [4 Corner]
menu again in CH-A.
2. Select the second corner to e adjusted.
3. Press [OK] key, then it will show Red Mark
at the selected corner.
4. To adjust the position of the corner to
match the screen order y direction keys.
5. Press [CH A/B] to switch to CH-B and do the
same corner adjustment
process
.
After all corner positions have een aligned
together with the screen. The grid patterns
from CH-A & CH-B will overlap together and
show only one grid pattern.
1. Press [Exit] in remote control to turn off
grid pattern in one channel.
2. Switch to 2
nd
channel y [CH A/B] key, then
press [Exit] again to exist from the 2
nd
channel.
3. User will get clear image after this process,
if not, please fine-tune the alignment. Then
user can start [3D Properties] setting.

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Procedures for 3D display setting in GeoBox
After the above procedures, apply 3D signal source and wear 3D glasses, then user can
enjoy the most comfortable and healthy 3D system. It is the best solution for children
with minimum harm to the eyes.
1. After [4 Corner] adjustment, use hot keys in
remote controller to select 3D formats.
2. Select [3D/Auto] if the 3D signal is standard
HDMI 1.4 3D formats from Blue Ray player.
3. Select other items ased on user’s 3D input
formats: [2D to 3D] conversion, side y side
[SBS] or top- ottom [T-B] formats.
1. If [2D to 3D] format is selected for 2D to 3D
display, 3 setting items can e adjusted
ased on personal preference:
[Convergence], [3D Depth] & [3D Offset]
2. Hot key shortcuts are availa le in the
remote controller for [2D to 3D] settings.
Press [L/R ID] hot key in remote controller to
show “R & L” characters on the screen
simultaneously to verify the final 3D settings in
the system.
1. After wear 3D glasses, RH eye should see
only “R” and LH eye should see only “L”.
2. If it is not the result, press [R/L Swap] key in
remote controller to swap RH/LH signal. If it
still can’t show correct 3D, then review all
the connections and settings are required.

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Projector installation and setting guide
1. Two projectors can be installed side by side or top-bottom. Closer position will reduce 4 corner adjustment
ranges and reduce the loss of the image resolution and brightness. Please make sure ventilation hot air will
not affect each other.
2. Maximum [4 Corner] adjustment range in each corner is ±256 pixels horizontally (max. 300 pixels in Left +
Right) and ±200 pixels vertically (Top + Bottom). For output resolution above 1400 x 1050, the range will be
H: ± 150 & V: ± 100. Please make sure the installation of the projectors can meet this limits. Each grid
pattern is 50x50 pixels before implement 3D function and will be 50x100 pixels after implement 3D.
3. GeoBox can support passive 3D display on curved screen through “Warp” function in OSD.
4. The output brightness of the projector will differ in different Display Modes. User needs to select one with
higher brightness and enriched color. “Presentation” mode will give higher brightness but the color will differ
from original. sRGB will give user better color but the output brightness is usually comparative low. Two
projectors should have the same color settings to get the best 3D performance.
5. During the installation, the distance between the polarizer and the projector should be over 5cm to avoid
thermal damage due to high temperature from the projector. Higher lumens projector will create more heat
and the distance should be larger. The polarizer can only tolerate up to about 60~70℃.
6. If 2D & 3D display is required in the same setup, user can keep the polarizer in the system but the total
brightness of the system will be lower. If user wants to enhance the brightness, there should be a
mechanism to remove the polarizers while the system switching to 2D display. For 2D display, it is
necessary to do different geometry alignment because the polarizers will change the light path. If necessary,
user can do alignment based on 2D display without polarizer and put on polarizers for 3D with the same
alignment settings because 3D display allow small geometry shift. Different settings in geometry adjustment
can be stored in GeoBox [Profile] menu and recall through OSD.
7. GeoBox HDMI connector may be damaged by an unqualified HDMI cable. Please use qualified HDMI cable
and carefully plug in and out.
8. Pay attention to the HDMI compatibility due to different cables, equipment and connection distance. If the
distance is too long, HDMI extender can be considered. It may extend the distance up to 50m to 100m.
Screen selection guide
1. Silver Matte screen is required for polarized 3D display. Spectrum filter 3D system can use conventional
screen. Some factors are important in polarized 3D display screen:
i. The ability to retain polarization: higher value will have less ghost cross talk
ii. Gain value: high value will have better brightness but may have viewing angle and hot spot issues.
iii. Flatness of the screen: Viewer may see wave screen and dis-alignment in geometry, especially in short
throw ratio projectors. It may be OK for 3D display but it will yield blurred image in 2D display.
2. The prices in different 3D screens have big range. Paint for 3D screen is available in the market.
3. If 2D & 3D display is required. User can select a screen with 2D/3D ability in the market.
4. Cheap silver paint and clothes with silver paste coating can be used as a temporary means to verify the
function of the 3D system if no 3D screen is available.

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Projector selection guide
1. It is not necessary to use expensive projectors with lens shift or special geometry alignment rack because
GeoBox can do pixel by pixel precise geometry adjustment.
2. A normal projector can be chosen for 3D display (no need to have 3D ready). Usually, XGA resolution will
create acceptable 3D video quality. A projector with higher native resolution, output brightness and contrast
ratio, will yield better performance similar to Movie Theater.
3. The output light from a projector with 3x LCD micro display (such as Epson) or LCOS (JVC or Sony) may
preserve polarization and the polarizer and glasses need to be carefully selected. Linear polarized system
can be used in Epson 3x LCD projector but circular polarized system can’t. Optical spectrum type filter and
glasses can be an alternative in this case. DLP type projector is easier in polarizer and glasses selection.
4. The projector with throw ratio under 0.8 is not recommended because it will be more sensitive to the flatness
of the screen and create difficulty in the installation.
5. DLP projector for PC graphics display purpose may use different color wheel for higher brightness but
degrade the color performance. Please select video projector with HDMI input for home theater application.
6. For use in public area, the projectors with higher brightness should be considered. Projector with more than
3,000 lumens will be acceptable in limited ambient light controlled area. More than 4,000 lumens will create
better 3D effect. Projector with full HD resolution and 2,000 lumens will be recommended for home theater.
Other Important Tips for 3D display
1. The final brightness to the eyes will be reduced due to 3D polarizer and glasses. Passive 3D brightness to
the eyes will be about 3x if compared with the same projector used in active (shutter) 3D system.
2. Incorrect aspect ratio adjustment of signal source may cause abnormal 3D display when the 3D format is
Side by Side or Top-Bottom.
3. Pair the glasses and polarizer is required: If viewer wears 3D glasses and sees the light from lamp through
one polarizer via RH eye with different side, direction and angle, viewer will see below conditions:
i. If RH eye can see through the polarizer at any side, direction and angle, then this polarizer is not for RH
eye. It should belong to LH eye projector.
ii. If viewer can’t see through or only see minor light at some angle or direction, then it can be for RH eye
projector. The side faced to the eye should be pointed out to the screen and the polarizer should be
installed at the same angle as viewer sees minimum light through.
4. G-301 doesn’t have VGA output. Using HDMI to VGA conversion box to connect projector through VGA port
is not recommended because projector may change the geometry alignment due to “Auto Setting” during
system booth up stage, unless “Auto Setting” function in projector can be turned off.
5. It is possible for the system to hung up during image adjustment. In this case, system will restart within one
minute. User can also turn OFF/ON the system to restart again. This kind of situation will not happen once
the complete system setup is finished. It will not affect the stability of the whole system.
6. If 3D setting in Blue Ray player is not correct, GeoBox will not be detected and 3D signal can’t be delivered
to GeoBox. Please set Blue Ray at auto 3D or 1080p@24Hz frame packing. While executing 2D to 3D
conversion function, please disable 24/30Hz in Blue Ray.

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7. Usually front projection 3D screens will be silver (aluminum) surfaced in polarized 3D system unless optical
spectrum filter system from Dolby or Infitec has been used. Optical spectrum filter system can use normal
2D screen and minimized the ghost effect (crosstalk) but the filter and glasses will be in higher prices.
8. There are many kinds of 3D polarization system with different polarizing angles or directions. User needs to
check whether the glasses can match exactly with polarizer being used for the projectors.
9. Please note that head tilting and different viewing angles will affect crosstalk in linear polarization system.
10. It is necessary to recheck the overlap condition of the projectors if there is any output mode change. If
necessary, please use [Profile] to store different settings.
11. In Side by Side or Top-Bottom 3D input mode, user may not see full OSD display from the video sources
on the screen. To set correct video source before implement 3D mode.
12. Although GeoBox is the most advanced and comfortable 3D control system, 3D screen, polarizer and
glasses are also important factors for a perfect 3D system.
Three projector image stacking procedures
1. Image stacking is a cost effective solution to increase the brightness of the projection system. User can use
three low cost projector with 3,500 lumen to stack up to 10,000 lumens easily at much lower cost.
2. Please see system installation as showed in Figure 2 in page 1. It is not necessary to add any video
distributor in the system setup
3. One of the projectors should be connected through [HDMI Loop Back] connector with native raw signal
without processing by GeoBox and the other two should be connected to RH & LH output ports.
4. To do geometry adjustment in the first projector to let the image match the screen borders through keystone
correction or lens shift function inside the projector, then to use [4 Corner] adjustment to align the images
from the 2nd and 3rd projectors onto the first one.
5. For curved screen stacking, only two projector can be used through [Warp] function in GeoBox unless the
first projector can support curved screen display.
6. If the screen is not flat enough, the image sharpness will be reduced in dis-aligned regions.
Technical support
Please check more technical information in www.vnstw.com website:
1. G-301 User Manual
2. How to pair polarized filter (polarizer) and glasses for 3D display
Limited Warranty
This device is designed and tested to the highest standards and acked y a one year parts and la or warranty. Warranties
are effective upon the first delivery date to the end customer and are non-transfera le. Warranty related repairs include parts and
la or, ut do not include repair of faults resulting from user negligence, special modifications, a use (mechanical damage),
shipping damage, and/or other unusual damages. The customer shall pay shipping charges when the unit is returned for repair.
Manufacturer will pay shipping charges for return shipments to customers.
Manufacturer does not assume responsi ility for consequential damages, expenses or loss of revenue, inconvenience or
interruption in operation experienced y the customer. Warranty service shall not automatically extend the warranty period.
Technical support: Steve Wang, HH Lin
Tel: [phone] ext. 301/305
E-mail: [email protected] We site: WWW.vnstw.com