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Possible to move upward in 90˚ max.

Possible to move downward 
in 90˚ max.
<Conditions>
Be sure to ensure sufficient space 
for intake and exhaust ports 
in the same way as for 
an ordinary installation. 

Do not use the projector by inclining it to the 
left and right 
(this concerns the installation angle, 
not the incident angle).

The projector can 
be set upside down 
and hung from the 
ceiling.  
(It is recommended 
to use the dedicated 

hanging metal fittings “EF-G10CJ”.) If the projector 
is set upside down, the intake port faces upward 
so be careful of dust.

Do not put 
paper or 
documents 
under the 
projector.
This reduces 
the clearance 
between the 
projector and the table, blocking 
the intake port and reducing the 
cooling effect.

Do not expose your skin 
to the hot exhaust.  
Excessive exposure can cause burns.

Air intake

Exhaust

359

168

223

408

179

6

6

15°

15°

φ11

3 - 

φ

11 long hole

Center of the lens

Center of the pedestal

metal fittings

120

163

150

200
240


450

436

79

79

114.5

378

318.5

176

 Specifications and design subject to 

  change without notice.

 The projector is installed upside down.   

 Projector is an option.

Dimensions

   (Unit: mm)

Projector with 
EF-G10CJ attached

Specifications

 

The lens of the DLA-G20 is not located at the center.  When attaching the metal fittings, 

the lens center is shifted from the center of the pedestal metal fittings by 79 mm.  Take this 
into consideration when determining the installation position.

Ivory coating

±

15˚

±

±

(H) 176 x (W) 450 x (D) 359 mm 

(6-15/16" x 17-3/4" x 14-3/16")

6.5 kg (14.3 lbs.)

(H) 378 x (W) 450 x (D) 408 mm

(14-15/16" x 17-3/4" x 16-1/8")

20.5 kg (45.2 lbs.)

Finish

Vertical tilt variable range

Horizontal tilt variable range

Horizontal pan variable range

Dimensions

Weight

Dimensions

 (when the DLA-G20 is incorporated)

Weight

 (when the DLA-G20 is incorporated)

21

200

Ceiling hole position 
when installing the 
ceiling hanging 
metal fittings

Plane surface 
(when the ceiling is viewed 
from the floor)

Screen

Throw di163

Center of the screen

120 

179

Ceiling

Screen installation position 
with ceiling-mounted 
projector

 Elevation view

318.5

Upper edge 
of the picture

Screen

 To lower the screen further, put a cushion 

for adjustment between the metal fittings and 
the ceiling and lower the projector as well.

 To raise the screen further, a cavity must be created in the 

ceiling for the projector installation.  If this is not possible, 
trapezoid distortion may occur.

20cm

20cm

20cm

20cm

50cm

4.1cm

DLA-G20 / DLA-S15

50cm

Lamp

35

m

Fixing the projector to the 

metal fittings

Lamps should be replaced regularly based on usage time.  If the
projector is fixed to metal fittings, leave enough space (as shown
on the left) for lamp replacement.  The ceiling hanging metal 
fittings “EF-G10CJ” and data box “DB-70S10” allow the projector
to be moved with the hinge for lamp replacement.

m

Ceiling suspension

The DLA-G20 can be set upside down and suspended from a
ceiling.  Make sure there is enough space for the intake and
exhaust ports to dissipate heat and to allow easy maintenance
access (attach an elevator to move the projector up and down
easily for maintenance and leave enough space for lamp 
replacement).  

For installation of special metal fittings, it is necessary to

use the feet of the projector or make an opening for intake port or
lamp replacement.  Use the dedicated “EF-G10CJ” ceiling 
hanging metal fittings.

m

“EF-G10CJ” ceiling hanging 

metal fittings 

Features:

Enables the D-ILA multimedia projector “DLA-G20” to be sus-

pended from a ceiling

Enhances the installation flexibility of the DLA-G20

Makes pan and tilt angle adjustment easy

Enables easy assembly and installation

* Please note that the DLA-G20 cannot compensate for trapezoid
distortion.

m

Ceiling hole position when installing

the ceiling hanging metal fittings

m

Screen installation position with ceil-

ing-mounted projector

m

Permanent installation on a table or

shelf

To prevent the projector from falling, tipping over, etc., you may
want to fix it securely to the platform, table or shelf where it is
installed.  You can do this with the “EF-G10CJ” ceiling hanging
metal fittings.  The table should also be firmly anchored to the
floor.

In all installations, the supporting platform (ceiling, table, etc.)

must be able to support a total weight of at least 20.5 kg (14 kg
projector and 6.5 kg “EF-G10CJ” ceiling hanging metal fittings).
The weight of these items could result in a serious or fatal injury if
an accident were to occur.  Special precautions should be taken
to prevent the projector from falling or being knocked over even
under severe conditions such as an earthquake.
*For details, refer to the 
“EF-G10CJ” instruction manual.

Ensure that stress is not

applied any part of the projector
other than its feet.

Installation and construction

requires expertise and should
only be performed by a skilled
professional.  To ensure safety,
the customer should not do the
construction work on their own.  

JVC will assume no 

responsibility for any accidents
related to installation such as
falls.

D-ILA Method Present Condition and Subject 

34

m

Inclination of the projector

Do not install the projector inclined to the left and right.  Otherwise, color unevenness may occur or the lamp life may be shortened.

m

Space required for heat radiation and

maintenance

To maintain stable performance of the DLA-G20/DLA-S15 for a
long period, it is necessary to provide sufficient space for heat
radiation and maintenance before installation.  Otherwise, 
overheating may result in deteriorating performance or damage to
the projector. 
The minimum space required is shown above.

m

Notes on ambient temperature

The DLA-G20/DLA-S15 uses a high output lamp to obtain high intensity light.  Therefore, it generates a lot of heat (540 kcal/h).  Be sure

to install the projector in a well ventilated location or provide some form of air conditioning.

To enhance the cooling effect and ensure reliable performance, ensure that there is sufficient peripheral space and install an 

air-conditioner.  Ideally a fixed temperature should be maintained.

Sudden changes in temperature can cause condensation.  If the projector is moved from a cold place to a warm place or the room 

temperature rises suddenly, wait at least one hour before turning the power on.  Also, ensure that humidity levels are kept low.

Do not block the ventilation slots or wrap the operating projector with a cloth, etc.  Do not install the projector close to other equipment as

this can interfere with air flow and result in rising internal temperature.

m

Air intake and exhaust of the 

DLA-G20/DLA-S15

The DLA-G20/DLA-S15 uses air to cool itself (as shown in the 
figure below).  Therefore, do not block the intake and exhaust
ports or place an object near the ports.  Since air intake is 
performed at the base and only minimum clearance is kept when
the projector is installed, be careful not to reduce the clearance by
inserting paper or other objects beneath the unit.

Reference materials: Temperature and humidity conditions faor the DLA-G20/DLA-S15
Allowable operating temperature/humidity: +5˚ to +35˚/20 to 80%, no condensation
Allowable storage temperature/humidity: -10˚ to +60˚/10 to 90%, no condensation

Notes on the installation (DLA-G20/DLA-S15)

Installation

Table

Anchor

Floor

Installation

Содержание DLA-G20

Страница 1: ...Printed inJapan XXX 0000 ...

Страница 2: ...od present condition and subject n Brightness basics n D ILA resolution n Installation conditions and throw distance n Throw distance n Table Relationship between screen size and throw distance n Stacking systems n Projection type front projection n Projection type rear projection n Installation n Operating precautions n System design ...

Страница 3: ...the trade off between the high brightness and high resolution The D ILA multimedia projector is able to project a clear bright high resolution image onto a large screen Vivid images can be achieved even in a bright room High precision projection The D ILA device provides high resolution of 1365 x 1024 pixels enabling S XGA images to be projected without compression or loss of quality Horizontal re...

Страница 4: ...age video signal are called gamma characteristics The straighter this curve the better the gradation expression ensuring more accurate gray scale reproduction If gamma characteristics are poor gradations cannot be expressed accurately resulting in flat black or white blurring on the screen To improve this gamma correction is carried out However this is difficult if the device itself has an extreme...

Страница 5: ... signal Projection lens CRT Screen Both the maturity degree and compatibility with conventional systems are high With no pixel construction this method is easily fit to various signal forms To enhance the brightness the amount of beam is increased resulting in the lowered resolution and heat generation With a single panel this method is easily fit to the mass production As this is constructed with...

Страница 6: ...ection area the larger the value of even when the value remains the same Similarly the larger the projection area the smaller the value of It is important to know the projection screen size when assessing the value If the value seems very high it may be based on a very small projection screen size Intensity is a measure of the amount of light reflected from the screen This is what people normally ...

Страница 7: ...28 is shown on the document the data is correct classified as shown below In each case the reflection limit of the external light on the screen surface is shown as reference For actual installa tion the reflection amount on the screen should not exceed the values shown below m Fig 1 m Fig 2 Which is brighter 1000 or 2000 40 type 4 3 2000 would seem to be brighter However the measurement unit is di...

Страница 8: ... resolution without compression or data loss This is what we mean by true S XGA Fig 1 The term S XGA equivalent on the other hand does not describe a true S XGA picture Instead it refers to projected image that is processed so that it resembles an S XGA picture Since LCDs in most LCD projectors can reproduce either 800 x 600 S VGA pixels Fig 2 or 1024 x 768 XGA pixels Fig 3 they are unable to hand...

Страница 9: ...picture even when viewed from behind the projector DLA G20 Offset axis is not added to the projection optical axis The center axis of the lens is at the center of the screen horizontally and vertically Note The lens position shifts horizontally by 72 mm from the center of the unit Keep this in mind during installation DLA G20 DLA S15 Notes Be careful when demonstrating because the DLA S15 s lens s...

Страница 10: ... use the value without making allowance for error Use this value as a guide when first discussing what screen size should be selected If you need the correct value refer to the table Relationship between screen size and throw distance on pages 18 to 21 Calculation example To determine the appropriate screen size refer to the table below The approximate relationship between screen size and number o...

Страница 11: ... 92 7 94 11 2 11 6 12 0 12 4 12 7 13 1 13 5 13 9 14 3 14 6 15 0 15 4 15 8 16 2 16 5 16 9 17 3 17 7 18 1 18 5 18 8 19 2 19 6 19 93 20 0 16 8 17 4 17 9 18 5 19 1 19 7 Projection size Throw distance m Model inches diagonal Length m Wide 2 1 Tele 3 1 Width m Use the table below as a guide Because the lens generates a slight error do not use the maximum settings DLA G20 4 3 To obtain the projection siz...

Страница 12: ...images are superimposed registration differences appear in the center and peripheral areas of the screen due to the lens distortion Use the center portion of the optical lens to minimize the registration difference This difference cannot be eliminated because it is caused by lens distortion The smaller the lens magnification the less the distortion Vertical stacking limit range The DLA M4000s can ...

Страница 13: ...1 43 68 43 94 45 95 47 29 48 25 48 97 50 53 29 85 31 33 32 66 33 84 34 88 35 84 36 71 37 51 38 24 38 91 39 52 40 10 40 63 41 13 41 59 42 00 42 43 42 8 43 17 43 5 43 82 44 12 44 41 44 68 44 94 46 95 48 26 49 25 49 97 51 53 Screen size 4 3 Width Height Y 50 Y 51 Y 52 Y 53 X Y 54 Y 55 Throw distance 306 6 H 100 Screen upper edge Screen lower edge Horizontal stacking DLA M4000 x 2 Leave a space of mor...

Страница 14: ... screen surface is white and there is almost no gain As the angle of visibility is close to the full diffusion of 180 this type is ideal for auditoriums and rooms with a theater style layout since the audience expands sideways as the distance from the screen increases The benefit of a white screen is more natural color reproduction if the room is dark or if the light output of the projector is suf...

Страница 15: ...n 1 Strictly speaking full diffusion object obtained by burning magnesium on a aluminum plate is gain 1 In actual use Kodacolor standard white is gain 1 Normally gain means the peak gain The peak gain is the value at the point where the gain is the highest The higher the gain the brighter the screen On the other hand the angle of visibility becomes narrower Refer to the typical example showing the...

Страница 16: ... direction Oscillation in the vertical direction Oscillation in the vertical direction Oscillation in the vertical direction Light from the projector Oscillation in the vertical direction External light reflection horizontally oscillating light is shut out with a polarizing film and does not pass through vertically oscillating light is reflected Only half of the external light is reflected Project...

Страница 17: ...pes from the divided pixel panel interfere with the screen s lens pitch and black striping resulting in moiré pattern The extent to which this pattern is noticeable depends on the size of the projected image the screen s lens pitch and the panel s pixel division pitch Although the DLA S15 has divided pixels it has a high aperture ratio with very little cross striping moiré patterns are not normall...

Страница 18: ...be noticeable Transportation delivery and construction are easy The screen moves with the air flow Picture is not very bright Soft Hard Type Single Fresnel lenticular Double Fresnel lenticular Double cross lenticular Dispersal agent hard type Dispersal agent soft type Maximum size 150 model 4 3 150 model 4 3 200 model 4 3 250 model 16 9 180 model 16 9 1000 model 4 3 Characteristics Single Fresnel ...

Страница 19: ...ility of the DLA G20 Makes pan and tilt angle adjustment easy Enables easy assembly and installation Please note that the DLA G20 cannot compensate for trapezoid distortion m Ceiling hole position when installing the ceiling hanging metal fittings m Screen installation position with ceil ing mounted projector m Permanent installation on a table or shelf To prevent the projector from falling tippin...

Страница 20: ...nd Subject 36 The light source lamp must be replaced periodically As a rough guideline the lamp should be replaced after about 1000 hours of operation When the lamp s operation time surpasses 900 hours the LAMP indicator on the projector lights When projection starts the lamp replacement message is shown on the screen for about 2 minutes Use a new light source lamp or prepare a light source lamp f...

Страница 21: ...lock the ventilation openings Do not cover the projector with a cloth during operation in order to avoid increasing the temperature in the projector and do not place the projector near other equipment It may disturb the flow of air and cause an increase in temperature Small spaces may also hinder maintenance Before you place the projector refer to Installation on page 34 to 35 11 The light source ...

Страница 22: ...d and locked In this case since screen shift occurs it is necessary to fine adjust the phase tracking and horizontal and vertical positions These can be adjusted automatically by pressing the Quick Alignment button to activate the auto setup function If auto adjustment is not satisfactory use the manual adjustment function Even though signals can be input because they are in the allowable frequenc...

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