ENGLISH
1
TT-251
Tabletop use kit
Model name
TT-251 User’s Manual
The following symbols are used in this manual to help you use this product safely and correctly, and to prevent injury
to yourself and others or damage to property. Read through the safety instructions below so you can operate the
product correctly.
WARNING
This symbol indicates information that, if ignored, could result in serious personal injury
or even death due to incorrect handling.
CAUTION
This symbol indicates information that, if ignored, could result in personal injury or
physical damage due to incorrect handling.
Indicates a prohibited action.
This symbol is accompanied by text indicating an action that must not be taken.
Indicates a mandatory action.
This symbol is accompanied by text indicating an action that must be taken.
Table of Contents
Safety Symbols
Thank you for purchasing this tabletop use kit specially designed for Hitachi LCD projectors.
Be sure to read this manual and the User’s Manual supplied with the LCD projector before use so you will know
how to install it properly. After you have nished reading these documents, put them away in a safe place for future
reference.
Disclaimer ................................................ 1
Table of Contents ..................................... 1
Safety Symbols ........................................ 1
Outline and Relevant Models .................. 2
Installation Precautions .......................... 2
Routine Inspections ................................ 3
Contents of this package ........................ 4
Installation Procedure ............................. 5
1 Disassembling the Main Bracket (A) ......... 5
2 Assembling the Base Plate (B) ................. 5
3 Assembling the Supporting Bracket (C) ... 6
4 Attaching the Projector ............................. 6
5 Attaching the Fixing Clamp (D) ................. 7
6 Connecting cables .................................... 8
Image adjustments .................................. 9
Dimensional Drawing .............................10
● The content of this manual and the specications of the product it describes are subject to
change without prior notice.
● Note that Hitachi will accept no liability whatsoever for injuries and damages arising from
incorrect use or handling that exceeds normal operating limits.
Disclaimer
2
TT-251
Be sure to observe the following instructions when installing an LCD projector.
1. Make sure the table is sturdy enough to support the weight of the projector and the tabletop use kit.
LCD projector Approx. 4.1 kg
Tabletop use kit (TT-251) Approx. 3.5 kg
2. If the temperature inside the LCD projector gets too high, the temperature sensor will activate and turn off the
projector to prevent damage. Do the following to avoid an abnormally high temperature.
(1) Select a location where the ambient temperature is in the range of 5 to 35°C.
(2) Periodically clean the projector’s air intake lter. For details on how often and how to clean the lter, see the
LCD Projector User’s Manual.
(3) In a dusty location, the lter will need more frequent cleaning than in (2) above so install the projector in a
location where cleaning is easy.
(4) Leave 30 cm or more space on the sides of the LCD projector to allow the free ow of air from the exhaust and
leave 10 mm or more space at the back of the projector to enable air to enter via the air intake.
(5) Do not install the projector in a location exposed to sudden temperature changes, for example near air
conditioners, or where the temperature rises above 35°C.
3. Do not install the projector in a smoke-lled or extremely dusty environment as the tar in cigarette smoke will
settle on the optics and lower performance.
4. Do not install the projector in a location where the remote control sensor will be exposed to direct sunlight, other
strong light sources or inverter uorescent lamp light at close range to prevent remote control malfunction.
Installation Precautions
This tabletop use kit is designed to install a Hitachi LCD projector on top of a table and to project images on the
surface of the table.
Supported Hitachi LCD projector models: CP-AW251N (CP-AW251NM)
CP-A221N (CP-A221NM)
CP-A301N (CP-A301NM)
BZ-1 (BZ-1M)
CP-AW2519N (CP-AW2519NM)
Outline and Relevant Models
3
TT-251
WARNING
■ Do not install the projector in a location exposed to high humidity, dust or tobacco smoke or in a
location exposed to smoke or steam.
■ Do not install the projector in a location exposed to vibrations.
■ After you have nished installation, keep this manual and accessories in a safe place for future
reference.
■ Small parts such as adjusting screws could be swallowed by small children and pets should be kept
away. If your child swallows any small parts, consult a doctor immediately.
■ Perform all installation work correctly according to this manual. Make sure that all specied screws
and brackets are used in the installation.
■ Make sure the installation place is sturdy enough to support the weight of the projector and the
tabletop use kit.
■ Never attempt to modify the tabletop use kit. (We will not guarantee the strength of a unit that has
been modied.)
■ Make sure that all screws are tightened to the proper torque after installation and adjustments. There
must be no loose or over tightened screws.
■ Do not apply thread-locking uid, lubricants, lubricating oils or other chemicals designed to prevent
loosening of fasteners on screws and bolts used to secure the projector and tabletop use kit. Using
such a materials could cause the projector to fall, resulting in damage or injury.
■ Route electric cables as prescribed and take care not to damage them in the installation work.
■ Be sure to read this manual and the User’s Manual of the LCD projector prior to installation to
ensure that all safety instructions are observed and the projector is correctly installed.
■ Be sure to turn off the LCD projector and disconnect the power plug from the wall outlet before
starting installation work.
■ Do not lean against the projector or tabletop use kit. The projector may fall or the tabletop use kit
may bend, resulting in damage or injury.
■ Keep the table flat while installing the tabletop use kit. Performing the installation on a slanted
surface may cause the unit to fall or the lamp life to shorten.
■ Do not install the tabletop use kit in unstable places. The projector or tabletop use kit may fall and
break, resulting in damage or injury.
■ Do not use screws that are not included in this package or in places that are not specied in this
manual.
Routine Inspections
Like the projector, the tabletop use kit should be inspected once a year.
1. Check that the screws of the tabletop use kit and adjusting parts are not loose.
2. Check that the tabletop use kit, adjusting parts and the set are not scratched or damaged.
NOTE
■ The image on the table might be distorted if the projection surface is bent, so use it on a at surface.
■ Using the PERFECT FIT may cause the image quality to deteriorate, so use the tabletop use kit for adjustments
of distortions as much as possible. See the User's manual of the projector on how to operate the PERFECT FIT.
ENGLISH
2
TT-251
Be sure to observe the following instructions when installing an LCD projector.
1. Make sure the table is sturdy enough to support the weight of the projector and the tabletop use kit.
LCD projector Approx. 4.1 kg
Tabletop use kit (TT-251) Approx. 3.5 kg
2. If the temperature inside the LCD projector gets too high, the temperature sensor will activate and turn off the
projector to prevent damage. Do the following to avoid an abnormally high temperature.
(1) Select a location where the ambient temperature is in the range of 5 to 35°C.
(2) Periodically clean the projector’s air intake lter. For details on how often and how to clean the lter, see the
LCD Projector User’s Manual.
(3) In a dusty location, the lter will need more frequent cleaning than in (2) above so install the projector in a
location where cleaning is easy.
(4) Leave 30 cm or more space on the sides of the LCD projector to allow the free ow of air from the exhaust and
leave 10 mm or more space at the back of the projector to enable air to enter via the air intake.
(5) Do not install the projector in a location exposed to sudden temperature changes, for example near air
conditioners, or where the temperature rises above 35°C.
3. Do not install the projector in a smoke-lled or extremely dusty environment as the tar in cigarette smoke will
settle on the optics and lower performance.
4. Do not install the projector in a location where the remote control sensor will be exposed to direct sunlight, other
strong light sources or inverter uorescent lamp light at close range to prevent remote control malfunction.
Installation Precautions
This tabletop use kit is designed to install a Hitachi LCD projector on top of a table and to project images on the
surface of the table.
Supported Hitachi LCD projector models: CP-AW251N (CP-AW251NM)
CP-A221N (CP-A221NM)
CP-A301N (CP-A301NM)
BZ-1 (BZ-1M)
CP-AW2519N (CP-AW2519NM)
Outline and Relevant Models
3
TT-251
WARNING
■ Do not install the projector in a location exposed to high humidity, dust or tobacco smoke or in a
location exposed to smoke or steam.
■ Do not install the projector in a location exposed to vibrations.
■ After you have nished installation, keep this manual and accessories in a safe place for future
reference.
■ Small parts such as adjusting screws could be swallowed by small children and pets should be kept
away. If your child swallows any small parts, consult a doctor immediately.
■ Perform all installation work correctly according to this manual. Make sure that all specied screws
and brackets are used in the installation.
■ Make sure the installation place is sturdy enough to support the weight of the projector and the
tabletop use kit.
■ Never attempt to modify the tabletop use kit. (We will not guarantee the strength of a unit that has
been modied.)
■ Make sure that all screws are tightened to the proper torque after installation and adjustments. There
must be no loose or over tightened screws.
■ Do not apply thread-locking uid, lubricants, lubricating oils or other chemicals designed to prevent
loosening of fasteners on screws and bolts used to secure the projector and tabletop use kit. Using
such a materials could cause the projector to fall, resulting in damage or injury.
■ Route electric cables as prescribed and take care not to damage them in the installation work.
■ Be sure to read this manual and the User’s Manual of the LCD projector prior to installation to
ensure that all safety instructions are observed and the projector is correctly installed.
■ Be sure to turn off the LCD projector and disconnect the power plug from the wall outlet before
starting installation work.
■ Do not lean against the projector or tabletop use kit. The projector may fall or the tabletop use kit
may bend, resulting in damage or injury.
■ Keep the table flat while installing the tabletop use kit. Performing the installation on a slanted
surface may cause the unit to fall or the lamp life to shorten.
■ Do not install the tabletop use kit in unstable places. The projector or tabletop use kit may fall and
break, resulting in damage or injury.
■ Do not use screws that are not included in this package or in places that are not specied in this
manual.
Routine Inspections
Like the projector, the tabletop use kit should be inspected once a year.
1. Check that the screws of the tabletop use kit and adjusting parts are not loose.
2. Check that the tabletop use kit, adjusting parts and the set are not scratched or damaged.
NOTE
■ The image on the table might be distorted if the projection surface is bent, so use it on a at surface.
■ Using the PERFECT FIT may cause the image quality to deteriorate, so use the tabletop use kit for adjustments
of distortions as much as possible. See the User's manual of the projector on how to operate the PERFECT FIT.
4
TT-251
Symbol Part name Quantity Appearance Symbol Part name Quantity Appearance
A
Main
bracket
1
D Fixing clamp 1
B Base plate 1 E
M4 × 8
hexagon
head screws
10
C
Support-
ing
bracket
1 F
User’s
Manual
(This book)
1
Check that the items listed in the table below are included in this package. If any are missing, please contact your
dealer immediately.
Part names in the gures on the following pages are indicated by the symbols given in the table below.
Contents of this package
5
TT-251
1 Disassembling the Main Bracket (A)
Firstly, disassemble the main bracket (A) into A-1 and A-2 as shown in the following illustration.
Installation Procedure
2. Slide and remove A-2
from the main bracket
hook.
A-1
A-2
1. Unscrew the 3 round
head screws.
Main bracket
hook
2 Assembling the Base Plate (B)
Fix the main bracket (A-1) onto the base plate (B).
Screws to use: M4x8 hexagon head screw (E) x 4
Tightening torque: 0.98 N•m (10 kgf•cm)
Main bracket (A-1)
Base plate (B)
(E) x 4
ENGLISH
4
TT-251
Symbol Part name Quantity Appearance Symbol Part name Quantity Appearance
A
Main
bracket
1
D Fixing clamp 1
B Base plate 1 E
M4 × 8
hexagon
head screws
10
C
Support-
ing
bracket
1
F
User’s
Manual
(This book)
1
Check that the items listed in the table below are included in this package. If any are missing, please contact your
dealer immediately.
Part names in the gures on the following pages are indicated by the symbols given in the table below.
Contents of this package
5
TT-251
1 Disassembling the Main Bracket (A)
Firstly, disassemble the main bracket (A) into A-1 and A-2 as shown in the following illustration.
Installation Procedure
2. Slide and remove A-2
from the main bracket
hook.
A-1
A-2
1. Unscrew the 3 round
head screws.
Main bracket
hook
2 Assembling the Base Plate (B)
Fix the main bracket (A-1) onto the base plate (B).
Screws to use: M4x8 hexagon head screw (E) x 4
Tightening torque: 0.98 N•m (10 kgf•cm)
Main bracket (A-1)
Base plate (B)
(E) x 4
6
TT-251
3 Assembling the Supporting Bracket (C)
Fix the main bracket (A-2) and supporting bracket (C) onto the projector.
Screws to use: M4x8 hexagon head screw (E) x 4 (To x the projector)
M4x8 hexagon head screw (E) x 2 (To x the supporting bracket (C))
Tightening torque: 0.98 N•m (10 kgf•cm)
Projector
(E) x 2
(E) x 4
Supporting bracket (C)
Main bracket (A-2)
4 Attaching the Projector
Attach the projector assembled in procedure ③ to the main bracket (A-2) assembled in procedure ②.
1. Fix the projector with the 3 round head
screws removed in procedure ①.
2. Insert the Main bracket hook (A-1)
into the xing hole of the Main
bracket (A-2). Choose from two xing
holes according to your projector's
resolution.
Main bracket
hook
Fixing holes
Upper holes: For XGA
Lower holes: For WXGA
7
TT-251
5 Attaching the Fixing Clamp (D)
If you are installing to the edge of the table, use the xing clamp (D) to prevent the projector from falling.
Screws to use: M4x12 hexagon head screw x 2 (To x the xing clamp (D))
Tightening torque: 0.98 N•m (10 kgf•cm)
Remove the two
M4 x 12 hexagon
head screws.
M4x12 hexagon
head screw x 2
※t: Fixable if thickness of the table
is 25-50mm
Lastly, turn the knob to ensure that the base plate
(B) is xed by the xing clamp (D).
※ｔ
(D)
(B)
WARNING
■ Never use screws other than those designated.
Failure to heed this warning may cause the projector to fall or other hazard resulting in damage or injury.
■ Make sure to use the xing clamp (D) when installing at the edge of the table.
■ Do not use at location where there is a risk of the unit falling.
CAUTION
■ Precautions should be taken to prevent toppling when placing the unit without using the xing clamp (D) at
location where there is no risk of falling, such as on the oor.
■ Do not drag the tabletop use kit while it is on the table.
■ Hold the base plate and handle while carrying.
Base plate
Handle
ENGLISH
6
TT-251
3 Assembling the Supporting Bracket (C)
Fix the main bracket (A-2) and supporting bracket (C) onto the projector.
Screws to use: M4x8 hexagon head screw (E) x 4 (To x the projector)
M4x8 hexagon head screw (E) x 2 (To x the supporting bracket (C))
Tightening torque: 0.98 N•m (10 kgf•cm)
Projector
(E) x 2
(E) x 4
Supporting bracket (C)
Main bracket (A-2)
4 Attaching the Projector
Attach the projector assembled in procedure ③ to the main bracket (A-2) assembled in procedure ②.
1. Fix the projector with the 3 round head
screws removed in procedure ①.
2. Insert the Main bracket hook (A-1)
into the xing hole of the Main
bracket (A-2). Choose from two xing
holes according to your projector's
resolution.
Main bracket
hook
Fixing holes
Upper holes: For XGA
Lower holes: For WXGA
7
TT-251
5 Attaching the Fixing Clamp (D)
If you are installing to the edge of the table, use the xing clamp (D) to prevent the projector from falling.
Screws to use: M4x12 hexagon head screw x 2 (To x the xing clamp (D))
Tightening torque: 0.98 N•m (10 kgf•cm)
Remove the two
M4 x 12 hexagon
head screws.
M4x12 hexagon
head screw x 2
※t: Fixable if thickness of the table
is 25-50mm
Lastly, turn the knob to ensure that the base plate
(B) is xed by the xing clamp (D).
※ｔ
(D)
(B)
WARNING
■ Never use screws other than those designated.
Failure to heed this warning may cause the projector to fall or other hazard resulting in damage or injury.
■ Make sure to use the xing clamp (D) when installing at the edge of the table.
■ Do not use at location where there is a risk of the unit falling.
CAUTION
■ Precautions should be taken to prevent toppling when placing the unit without using the xing clamp (D) at
location where there is no risk of falling, such as on the oor.
■ Do not drag the tabletop use kit while it is on the table.
■ Hold the base plate and handle while carrying.
Base plate
Handle
8
TT-251
6 Connecting cables
Connect the cables to the projector.
NOTE
■ Use a cable clamp to hold the cables.
■ Be careful not to pinch and damage the connected cables while moving the tabletop use kit.
■ Use a cable cover if necessary. See the User's manual of the projector for installation of the cable cover.
Cable clamp
9
TT-251
Image adjustments
1. Image size
You can choose from 2 different heights.
See procedure ④.
2. You can adjust the vertical and horizontal keystone in the image by tightening/loosening the round head screw at
the back.
Round head screw (back)
Fine adjustment
of vertical and
horizontal keystone
in the image
Tightening
Loosening
ENGLISH
8
TT-251
6 Connecting cables
Connect the cables to the projector.
NOTE
■ Use a cable clamp to hold the cables.
■ Be careful not to pinch and damage the connected cables while moving the tabletop use kit.
■ Use a cable cover if necessary. See the User's manual of the projector for installation of the cable cover.
Cable clamp
9
TT-251
Image adjustments
1. Image size
You can choose from 2 different heights.
See procedure ④.
2. You can adjust the vertical and horizontal keystone in the image by tightening/loosening the round head screw at
the back.
Round head screw (back)
Fine adjustment
of vertical and
horizontal keystone
in the image
Tightening
Loosening
10
TT-251
Dimensional Drawing
Center line of optical axis
The values shown in the table are calculated for a full size screen: 1280 x 800
a
Screen size (diagonal)
b
Projection distance (±8%)
c1 , c2
Screen height (±8%)
WXGA
(16:10)
Screen size
(diagonal)
Projection distance Screen height
b c1 c2
type(inch)
m m inch m inch m inch
60.0 1.5 0.120 4.7 0.295 11.6 1.102 43.4
The values shown in the table are calculated for a full size screen: 1024 x 768
a
Screen size (diagonal)
b
Projection distance (±8%)
c1 , c2
Screen height (±8%)
XGA
(4:3)
Screen size
(diagonal)
Projection distance Screen height
b c1 c2
type(inch)
m m inch m inch m inch
60.0 1.5 0.096 3.8 0.281 11.1 1.196 47.1
a
a
unit [mm]
/