LG Electronics RD-JT91 User Manual
Please read this manual carefully before operating
your set.
Retain it for future reference.
Record model number and serial number of the set.
See the label attached on the bottom of the set and
quote this information to your dealer when you
require service.
Model number :
Serial number :
RD-JT91
LG DLP PROJECTOR
LG DLP PROJECTOR
OWNER’S MANUAL
DLP PROJECTOR
DLP PROJECTOR
FCC NOTICE
• A Class A digital device
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Warning
This is a class A product. In a domestic environment this product may cause radio interference, in
which case the user may be required to take adequate measures.
Contents
Introduction
Safety Instructions .............................................................................................................................4-6
Names of parts
Main Body .............................................................................................................................................7
Connecting Part ....................................................................................................................................7
Control Panel ........................................................................................................................................8
Remote Control.....................................................................................................................................9
Installing Batteries.................................................................................................................................9
Projector Status Indicators..................................................................................................................10
Accessories .........................................................................................................................................11
Optional Extras....................................................................................................................................11
Installing and Composition
Installation Instructions .......................................................................................................................12
Basic Operation of the Projector.........................................................................................................13
Using Kensington Security System.....................................................................................................14
Turning on the Projector .....................................................................................................................15
Turning off the Projector .....................................................................................................................15
Focus and Position of the Screen Image............................................................................................16
Selecting source mode .......................................................................................................................16
Connection
Connecting to a Desktop PC ..............................................................................................................17
Connecting to a Notebook PC ............................................................................................................17
Connecting to a Video Source ............................................................................................................18
Connecting to a DVD ..........................................................................................................................18
Connecting to a D-TV Set-Top Box ....................................................................................................18
Function
Video Menu Options
Adjusting Video ...................................................................................................................................19
APC (Auto Picture Control).................................................................................................................19
Auto Color Temperature Control .........................................................................................................20
Gamma Function ................................................................................................................................20
Special Menu Options
Selecting language .............................................................................................................................21
Flip Horizontal Function ......................................................................................................................21
Flip Vertical Function...........................................................................................................................21
Using ARC Function............................................................................................................................21
Using Keystone function .....................................................................................................................22
Auto Source Function .........................................................................................................................22
Using Blank function ...........................................................................................................................22
Selecting Blank Image color ...............................................................................................................22
Lamp Mode Function ..........................................................................................................................23
Checking lamp time ............................................................................................................................23
Using Still function ..............................................................................................................................23
Screen Menu Options
Auto Tracking Function .......................................................................................................................24
Clock / Phase Function.......................................................................................................................24
Screen Position...................................................................................................................................24
Information
Supported Monitor Display..................................................................................................................25
Maintenance........................................................................................................................................26
Specifications ......................................................................................................................................27
Contents
3
Safety Instructions
Safety Instructions
Please take note of the safety instructions to prevent any potential accident or misuse of the projector.
➟ Safety Instructions are given in two forms as detailed below.
WARNING : The violation of this instruction may cause serious injuries and even death.
NOTES : The violation of this instruction may cause light injuries or damage to the projector.
After reading this manual, keep it in the place that the user always can contact easily.
➟
Indoor Installation WARNING
Do not place the Projector in direct
sunlight or near heat sources such
Do not place inflammable materials beside the projector
as radiators, fires and stove etc.
This may cause a fire hazard !
This may cause a fire hazard !
Indoor Installation NOTES
Disconnect from the mains and
remove all connections before
moving.
When installing the projector on a
table, be careful not to place it
near the edge.
This may cause the projector to fall
causing serious injury to a child or
adult and serious damage to the
projector.
Only use a suitable stand.
Do not block the vents of the projector or restrict air-flow in any way.
This would cause the internal temperature to increase and could cause a fire
hazard!
Do not place the projector close
to sources of steam or oil such
as a humidifier.
This may create a fire hazard or an
electric shock hazard !
Only use the projector on a level
and stable surface.
It may become unstable and affect
operation.
Do not place the projector directly on a carpet, rug or place where
ventilation is restricted.
This would cause its internal temperature to increase and might create a fire
hazard !
Do not allow children to hang on
the installed projector.
It may cause the projector to fall, causing injury or death.
Do not place the projector where
it might be exposed to dust.
This may cause a fire hazard !
Ensure good ventilation around the
projector. The distance between
the projector and the wall should
be more than 20cm/8 inches.
An excessive increase in its internal temperature may cause a fire
hazard!
Outdoor Installation WARNING
Do not use the projector in a damp place such as a bathroom where it is likely to get wet.
This may cause a fire or an electric shock hazard !
Power WARNING
Earth wire should be connected.
If the earth wire is not connected, there is a
possible danger of electric shock caused by
the current leakage.
If grounding methods are not possible, a
separate circuit breaker should be employed
and installed by a qualified electrician.
Do not connect ground to telephone wires,
lightning rods or gas pipe.
4
The mains plug should be inserted fully into the power outlet to
avoid a fire hazard !
This may cause a fire hazard !
Do not place heavy objects on
the power cord
This may cause a fire or an electric
shock hazard !
Power WARNING
Do not use too many plugs on the Mains multi-outlet.
It may result in overheating of the outlet and causes a fire hazard !
Power NOTES
Safety Instructions
Never touch the power plug with
a wet hand
This may cause an electric shock
hazard !
Do not plug when the power cord
or the plug is damaged or the
connecting part of the power outlet is loose.
This may cause a fire or an electric
shock hazard !
Hold the plug firmly when unplugging. If you pull the cord the cord
may be damaged.
This may cause a fire hazard !
Ensure the power cord does not
come into contact with sharp or
hot objects such as a heater.
This may cause a fire or an electric
shock hazard !
Prevent dust collecting on the
power plug pins or outlet.
This may cause a fire hazard !
Place the projector where people
will not trip or tread on the power
lead.
This may cause a fire or an electric
shock hazard !
Do not turn the projector On/Off by plugging-in or unplugging the power plug to the wall outlet.
(Do not use the power plug for switch.)
It may cause mechanical failure or could give an electric shock.
Using WARNING
Do not place anything containing
liquid on top of the projector such
as flowerpot, cup, cosmetics or
candle.
This may cause a fire hazard !
In case of impact shock or damage to the projector switch it off
and unplug it from the mains outlet and contact your service center.
This may cause a fire or an electric
shock hazard !
Do not allow any objects to fall
into the projector.
This may cause an electric shock
hazard !
If water is spilt into the projector
unplug it from the mains supply
outlet immediately and consult
your Service Agent.
This may cause an electric shock hazard !
Do not remove any covers
(except lens cover). High risk of
Electric Shock!
Dispose of used batteries carefully and safely.
In the case of a battery being
swallowed by a child please consult a
doctor immediately.
Don’t look directly onto the lens
when the projector is in use. Eye
damage may occur!
In the event that an image does
not appear on the screen please
switch it off and unplug it from
the mains supply and contact
your Service Agent.
This may cause a fire or an electric
shock hazard !
Do not touch metal parts during or
soon after operation since the
vents and lamp cover will remain
very hot!
5
Safety Instructions
Using WARNING
Never touch the wall outlet when
there is leakage of gas, open the
windows and ventilate.
It can cause a fire or a burn by a
spark.
Do not drop the projector or allow impact shock.
This may cause mechanical failure or personal injury !
Using NOTES
Do not place heavy objects on
top of projector.
This may cause mechanical failure or
personal injury!
Do not use any sharp tools on the projector as this will damage the casing.
Take care not to cause impact to
the lens particularly when moving
the projector.
Cleaning WARNING
Do not use water while cleaning
the projector
This may cause damage to the
projector or an electric shock hazard.
In the unlikely event of smoke or
a strange smell from the projector, switch it off , unplug it from
the wall outlet and contact your
dealer or service centre.
This may cause a fire or an electric
shock hazard !
Do not touch the lens of the projector. It is delicate and easily
damaged.
Use an air spray or soft cloth that
is moist with a neutral detergent
and water for removing dust or
stains on the projection lens.
Cleaning NOTES
Contact the Service Center once
a year to clean the internal parts
of the projector.
Accumulated dust can cause mechanical failure.
Unplug this product from the wall outlet before cleaning. Do not use
liquid cleaners or aerosol cleaners.
This may cause damage to the Projector or cause an electric shock hazard !
Others WARNING
Do not attempt to service the projector yourself. Contact your dealer or service centre.
This may cause damage to the projector and could give an electric Shock as well as invalidating the warranty !
Others NOTES
Be sure to unplug if the projector
is not to be used for a long peri-
Refer lamp servicing to qualified
service personnel.
od.
Accumulated dust may cause a fire
hazard!
Only use the specified type of battery.
This could cause damage to the remote control.
Do not mix new batteries with old
batteries.
This may cause the batteries to overheat and leak.
6
Names of parts
A
U
T
O
S
O
U
R
C
E
P
O
W
E
R
V
O
L
V
O
L
M
E
N
U
O
K
Main Body
*
The projector is manufactured using high-precision technology. You may, however, see on the Projector
screen tiny black points and/or bright points (red, blue, or green). This can be a normal result of the
manufacturing process and does not always indicate a malfunction.
Rear remote control sensor
Control panel
Power button
Zoom ring
Focus ring
Indicators
Foot adjusting button
Names of parts
Foot adjusting button
Connecting Part
DVI Input S-Video
Audio
RGB Input
(PC/DTV)
Front remote control sensor
Lens cover
* Push the lens cover into the inside after pulling it open into the
front. (If you mount on the ceiling, after pushing the cover, the lens
cover is installed. If not, the cover may overlap projecting lens.)
USB(Service)
*This jack is only used for service.
Video
AC IN
Kensington Security
System Connector
(Refer to page 14)
7
Names of parts
AUTO
SOURCE
POWER
VOLVOL
MENU
KEYSTONE
KEYSTONE
OK
Control Panel
, KEYSTONE+/- Button
/
MENU Button
Selects or closes menus.
AUTO Button
POWER Button
SOURCE Button
Switches to RGB, DVI, Video,S-Video mode.
VOLUME Button
Adjusts volume level and
functions of menus.
A OK Button
Checks present mode and
saves the change of functions.
8
Remote Control
POWER
MENU
SOURCE
AUTO
BLANK ARC
MUTE
STILL
OK
VOL
VOL
KEYSTONE
KEYSTONE
POWER Button
Names of parts
MENU Button
VOL-/+, F / GButton
AUTO Button (Refer to p.24)
BLANK Button (Refer to p.22)
*Switches the sound on or off.
MUTE Button
SOURCE Button
KEYSTONE+/-,
A OK Button
D / EButton
ARC Button (Refer to p.21)
STILL Button (Refer to p.23)
Installing Batteries
• Open the battery compartment cover on the back of the
remote control and insert the batteries with correct polarity,
match “+” with “+”, and match “-” with “-”.
• Install two 1.5V “AAA” batteries.
Don’t mix used batteries with new batteries.
9
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