LG Electronics Projector 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.  
RD-JT91  
RD-JT92  
OWNER’S MANUAL  
Model number  
Serial number  
:
:
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DLP PROJECTOR  
RD-JT91  
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, pur-  
suant 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 gen-  
erates, 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.  
RD-JT92  
FCC NOTICE  
• A Class B digital device  
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant  
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful  
interference in a residential installation. This 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  
be determined by turning the equipment off and on, the user is encouraged to try to correct the  
interference by one or more of the following measures:  
- Reorient or relocate the receiving antenna.  
- Increase the separation between 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.  
• Any changes or modifications not expressly approved by the party responsible for compliance  
could void the user’s authority to operate the equipment.  
Warning  
This is a class B product. In a domestic environment this product may cause radio interference, in  
which case the user may be required to take adequate measures.  
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Contents  
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  
3
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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 materi-  
als beside the projector  
Do not allow children to hang on  
the installed projector.  
as radiators, fires and stove etc.  
It may cause the projector to fall, caus-  
ing injury or death.  
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.  
Do not place the projector close  
to sources of steam or oil such  
as a humidifier.  
Do not place the projector where  
it might be exposed to dust.  
This may cause a fire hazard !  
This may create a fire hazard or an  
electric shock hazard !  
When installing the projector on a  
table, be careful not to place it  
near the edge.  
Only use the projector on a level  
and stable surface.  
Ensure good ventilation around the  
projector. The distance between  
the projector and the wall should  
be more than 20cm/8 inches.  
It may become unstable and affect  
operation.  
This may cause the projector to fall  
causing serious injury to a child or  
adult and serious damage to the  
projector.  
An excessive increase in its inter-  
nal temperature may cause a fire  
hazard!  
Only use a suitable stand.  
Do not place the projector directly on a carpet, rug or place where  
ventilation is restricted.  
Do not block the vents of the pro-  
jector or restrict air-flow in any way.  
This would cause its internal temperature to increase and might create a fire  
hazard !  
This would cause the internal tempera-  
ture to increase and could 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.  
The mains plug should be insert-  
ed fully into the power outlet to  
avoid a fire hazard !  
Do not place heavy objects on  
the power cord  
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.  
This may cause a fire or an electric  
shock hazard !  
This may cause a fire hazard !  
4
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Safety Instructions  
Power  
WARNING  
NOTES  
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  
Never touch the power plug with  
a wet hand  
Hold the plug firmly when unplug- Prevent dust collecting on the  
ging. If you pull the cord the cord  
may be damaged.  
power plug pins or outlet.  
This may cause an electric shock  
hazard !  
This may cause a fire hazard !  
This may cause a fire hazard !  
Do not plug when the power cord  
or the plug is damaged or the  
connecting part of the power out-  
let is loose.  
Ensure the power cord does not  
come into contact with sharp or  
hot objects such as a heater.  
Place the projector where people  
will not trip or tread on the power  
lead.  
This may cause a fire or an electric  
shock hazard !  
This may cause a fire or an electric  
shock hazard !  
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.  
In case of impact shock or dam-  
Do not allow any objects to fall  
into the projector.  
age to the projector switch it off  
and unplug it from the mains out-  
let and contact your service cen-  
ter.  
This may cause an electric shock  
hazard !  
This may cause a fire hazard !  
This may cause a fire or an electric  
shock hazard !  
If water is spilt into the projector  
unplug it from the mains supply  
outlet immediately and consult  
your Service Agent.  
Dispose of used batteries care-  
fully and safely.  
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.  
In the case of a battery being  
swallowed by a child please consult a  
doctor immediately.  
This may cause an electric shock haz-  
ard !  
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!  
Do not remove any covers  
(except lens cover). High risk of  
Electric Shock!  
Don’t look directly onto the lens  
when the projector is in use. Eye  
damage may occur!  
5
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Safety Instructions  
Using  
WARNING  
Never touch the wall outlet when  
there is leakage of gas, open the  
windows and ventilate.  
Do not drop the projector or allow impact shock.  
This may cause mechanical failure or personal injury !  
It can cause a fire or a burn by a  
spark.  
Using  
NOTES  
Do not place heavy objects on  
top of projector.  
Take care not to cause impact to  
the lens particularly when moving  
the projector.  
Do not touch the lens of the pro-  
jector. It is delicate and easily  
damaged.  
This may cause mechanical failure or  
personal injury!  
Do not use any sharp tools on the projector as this will damage the casing.  
Cleaning  
WARNING  
Do not use water while cleaning  
the projector  
In the unlikely event of smoke or  
a strange smell from the projec-  
tor, switch it off , unplug it from  
the wall outlet and contact your  
dealer or service centre.  
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.  
This may cause damage to the  
projector or an electric shock hazard.  
This may cause a fire or an electric  
shock hazard !  
Cleaning  
NOTES  
Contact the Service Center once  
a year to clean the internal parts  
of the projector.  
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 !  
Accumulated dust can cause mechan-  
ical failure.  
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  
Refer lamp servicing to qualified  
service personnel.  
Do not mix new batteries with old  
batteries.  
Be sure to unplug if the projector  
is not to be used for a long peri-  
od.  
This may cause the batteries to over-  
heat and leak.  
Accumulated dust may cause a fire  
hazard!  
Only use the specified type of battery.  
This could cause damage to the remote control.  
6
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Names of parts  
Names of parts  
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  
Zoom ring  
Focus ring  
Indicators  
Control panel  
Power button  
Foot adjusting button  
P
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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.)  
Foot adjusting button  
Connecting Part  
USB(Service)  
*This jack is only used for service.  
DVI Input  
S-Video  
RGB Input  
(PC/DTV)  
Audio  
Video  
AC IN  
Kensington Security  
System Connector  
(Refer to page 14)  
7
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Names of parts  
Control Panel  
, KEYSTONE+/- Button  
/
MENU  
VOL  
SOURCE  
KEYSTONE  
MENU Button  
Selects or closes menus.  
SOURCE Button  
Switches to RGB, DVI, Video,S-Video mode.  
VOL  
VOLUME Button  
Adjusts volume level and  
functions of menus.  
AUTO Button  
A OK Button  
Checks present mode and  
saves the change of functions.  
KEYSTONE  
OK  
AUTO  
POWER Button  
POWER  
8
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Names of parts  
Remote Control  
POWER  
MENU  
POWER Button  
KEYSTONE  
SOURCE  
SOURCE Button  
MENU Button  
VOL  
VOL  
KEYSTONE+/-, D / EButton  
VOL-/+, F / GButton  
AUTO Button (Refer to p.24)  
A
OK Button  
AUTO  
OK  
KEYSTONE  
ARC Button (Refer to p.21)  
STILL Button (Refer to p.23)  
BLANK Button (Refer to p.22)  
BLANK  
MUTE  
ARC  
MUTE Button  
*Switches the sound on or off.  
STILL  
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 AAAbatteries.  
Dont mix used batteries with new batteries.  
9
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Names of parts  
Projector Status Indicators  
* Lamp Indicator, operation indicator and temperature indicator at the top of the projector show the user the operating status  
of the projector.  
Lamp Indicator  
Temperature Indicator  
Operation Indicator  
P
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Orange  
Green(flashing) Lamp cooling until the lamp turn on.  
Green On operation. (Turn on the lamp)  
Orange(flashing) Projector lamp is cooling as power out (2 minutes)  
Standby.  
Operation Indicator  
Lamp Indicator  
Off  
Power off.  
Projector lamp is reaching the end of its life and needs  
to be replaced with a new lamp. (over 2000 hours)  
The projector has trouble in the lamp or around it at  
power-on. Retry Power On again later. If lamp indicator  
is red (flashing) again, contact the service center.  
Red  
Red(flashing)  
Green(flashing) The lamp cover is not closed.  
This projector is in high temperature. Turn the power of  
projector off and check the ventilator.  
Orange  
Red  
The projector is turned off as its high temperature.  
Power has turned off due to problem with the  
internal cooling fan. Contact your service center.  
Temperature Indicator  
Red (flashing)  
10  
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Names of parts  
Accessories  
POWER  
MENU  
KEYSTONE SOURCE  
VOL  
VOL  
AUTO  
KEYSTONE  
OK  
BLANK  
MUTE  
ARC  
STILL  
1.5V  
Power Cord  
2 Batteries (size AAA)  
Remote Control  
Computer Cable  
DVI-D Cable  
Video Cable  
Operating guide  
RCA to D-Sub Cable  
Optional Extras  
* Contact your dealer to purchase these items.  
* When applying a ceiling installer, use only the ceiling installer for projector.  
* Contact your service personnel for replacing a new lamp.  
* Projector lamp is reaching the end of its life and needs to be replaced with a new lamp.  
Ceiling installer for projector  
SCART to RCA jack (option)  
Projection Screen  
Lamp  
S-Video Cable  
Portable Bag  
Audio Cable  
RCA to PC Audio Cable  
11  
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Installing and Composition  
Installation and Composition  
Installation Instructions  
*
Dont place the projector in the following conditions. It may cause malfunction or product damage.  
Provide proper ventilation for this projector.  
GThe projector is equipped with ventilation holes(intake)  
on the bottom and ventilation holes(exhaust) on the front.  
do not block or place anything near these holes, or internal  
heat build-up may occur, causing picture degradation or  
damage to the projector.  
GDo not place the projector on a carpet, rug or other  
similar surface. It may prevent a adequate ventilation  
of the projector bottom. This product should be  
mounted to a wall or ceiling only.  
GNever push projector or spill liquid of any kind into the  
projector.  
GLeave an adequate distance(30cm/12 inches or  
more) around the projector.  
Place this projector in adequate temperature and humidity conditions.  
G
G
Install this projector only in a location where adequate temperature and humidity is available. (refer p.27)  
Dont place the projector where it can be covered with dust.  
This may cause overheating of the projector.  
Do not obstruct the slots and openings of the projector. This may cause overheating and create a fire  
hazard.  
The projector is manufactured using high-precision technology. You may, however, see tiny black points  
and/or bright points (red, blue, or green) that continuously appear on the projector Screen. This is a nor-  
mal result of the manufacturing process and does not indicate a malfunction.  
This product should be used adequate length bolt(within 5mm) when installing it.  
When applying a ceiling installer, use only the fixing bolt and ceiling installer for pro-  
jector. Contact your dealer for purchase or installation.  
TP-ML2  
TP-MH2  
To display DTV programs, it is necessary to connect a DTV receiver (Set-top Box) and connect it to the  
projector.  
If there is no input signal, the Menu will not be displayed on screen.  
12  
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Installing and Composition  
Basic Operation of the Projector  
1.Place the projector on a sturdy and horizontal surface with the PC or AV source.  
2.Place the projector the correct distance from the screen. The distance between the projector and the  
screen determines the actual size of the image.  
3.Position the projector so that the lens is set at a right angle to the screen. If the projector is not set at a right  
angle, the screen image will be crooked. If this is so then the keystone adjustment may correct this (Refer to  
page 22.)  
4.Connect the cables of the projector to a wall power socket and other connected sources.  
projection distance based on the picture format  
Projection off-set ratio:100%  
Screen height (X)  
Center line of lens  
Projection distance (D)  
RD-JT91  
4:3 picture format  
mm / inches  
screen  
size  
40  
60″  
80″  
90″  
100″  
110″  
120″  
150″  
200″  
screen  
height (X)  
610/24.0  
1400/55.1  
1680/66.1  
914/36.0  
2100/82.7  
2520/99.2  
1219/48.0  
2800/110.2  
3360/132.3  
1372/54.0  
3150/124.0  
3780/148.8  
1524/60.0  
3500/137.8  
4200/165.4  
1676/66.0  
3850/151.6  
4620/181.9  
1829/72.0  
4200/165.4  
5040/198.4  
2286/90.0  
5250/206.7  
6300/248.0  
3048/120.0  
The shortest  
distance (D)  
7000/275.6  
8400/330.7  
The longest  
distance (D)  
* The longest/shortest distance show status when adjusted by the zoom function.  
16:9 picture format  
mm / inches  
screen  
size  
40  
60″  
80″  
90″  
100″  
110″  
120″  
150″  
200″  
screen  
height (X)  
498/19.6  
1525/60.0  
747/29.4  
996/39.2  
1121/44.1  
1245/49.0  
1370/53.9  
1494/58.8  
1868/73.5  
2491/98.1  
The shortest  
distance (D)  
2288/90.1 3051/120.1 3432/135.1 3813/150.1 4194/165.1 4576/180.2 5720/225.2 7626/300.2  
The longest  
distance (D)  
1830/72.0 2745/108.1 3661/144.1 4118/162.1 4576/180.2 5033/198.1 5491/216.2 6864/270.2 9152/360.3  
RD-JT92  
16:9 picture format  
mm / inches  
screen  
size  
40″  
60″  
80″  
90″  
100″  
1245/49.0  
110″  
120″  
150″  
200″  
screen  
height (X)  
498/19.6  
747/29.4  
2190/86.2  
996/39.2  
2920/115  
1121/44.1  
1370/53.9  
1494/58.8  
1868/73.5  
2490/98.0  
The shortest  
distance (D)  
1450/57.1  
3290/129.5 3660/144.1 4030/158.7 4390/172.8 5500/216.5 7340/289  
The longest  
distance (D)  
1740/68.5 2620/103.1 3510/138.2 3950/155.5 4390/172.8 4830/190.2 5270/207.5 6600/259.8 8800/346.5  
* The longest/shortest distance show status when adjusted by the zoom function.  
4:3 picture format  
mm / inches  
screen  
size  
40″  
60″  
80″  
90″  
100″  
110″  
120″  
150″  
200″  
screen  
height (X)  
610/24.0  
1780/70.1  
2140/84.3  
914/36.0  
1219/48.0  
3580/140.9  
4300/169.3  
1372/54.0  
4030/158.7  
4840/190.6  
1524/60.0  
4480/176.4  
5380/211.8  
1676/66.0  
4931/194.1  
5920/233.1  
1829/72.0  
5380/211.8  
6460/254.3  
2286/90.0  
6730/265  
3048/120.0  
8980/353.5  
The shortest  
distance (D)  
2680/105.5  
3220/126.8  
The longest  
distance (D)  
8080/318.1 10780/424.4  
13  
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Installing and Composition  
Using Kensington Security System  
GThe projector has a KensingtonSecurity System Connector on the back panel. Connect the Kensington’  
Security system cable as below.  
GFor the detailed installation and use of the Kensington Security System, refer to the users guide attached  
to the Kensington Security System set.  
And for further information, contact http://www.kensington.com, the internet homepage of the  
Kensington company that deals with expensive electronic equipments such as notebook PCs or projec-  
tors.  
G
Kensington Security System is an optional item.  
K
14  
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Installing and Composition  
Turning on the Projector  
1. Connect power cord correctly.  
2. Remove the lens cover of the projector.  
3. Press the POWER button on the remote control or top cover.  
(Green operation indicator flashes during cooling of the lamp.)  
G
G
G
G
It will take about 5 second to display the picture after power on because the projector lamp has to warm up.  
An image will appear after the operation indicator light turns (Green).  
Select the source mode with the SOURCE button.  
Leave the projector plugged in for at least 2 minutes after switching off the projector, as this will allow the lamp  
cooling to continue which will help to preserve the lamp life.  
4. Adjust volume level.  
G
G
If you press VOLUME Gbutton, sound and volume level number are increased.  
If you press VOLUME F button, sound and volume level number are decreased.  
10  
* Dont unplug the power cord while the ventilation fan (inlet/outlet) is working. If so, you take longer time by lamp on.  
Turning off the Projector  
1.Press the POWER button on the top cover or remote control.  
2.Press the POWER button on the top cover or remote control again to cut off the power.  
3.If the operation indicator LED is orange and blinking, do not disconnect the mains supply until the  
operation indicator LED is lit up constantly (orange).  
G If the operation indicator LED is orange and blinking, the power button on the top cover or on the remote control will not  
operate.  
Power Off?  
Please Press  
Key Again.  
15  
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Installing and Composition  
Focus and Position of the Screen Image  
When an image appears on the screen, check if it is in focus and fits well to the screen.  
Zoom ring  
Focus ring  
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C R U  
G To adjust the focus of the image, rotate the focus ring which is the outer ring on the lens.  
G To adjust the size of the image, rotate the zoom ring which is the inner ring on the lens.  
To raise or lower the image on the screen, extend or retract the foot at the bottom of the projector  
by pushing foot adjuster button as below.  
1. While pressing the foot adjuster button, raise or lower the projector to place the screen image in the proper position.  
2. Release the button to lock the foot in its new position.  
3. To fine-tune the height of the projector, rotate the front foot to raise or lower it.  
After raising the front foot, do not press down on the projector.  
Selecting source mode  
1. Press the SOURCE button.  
select  
RGB  
OK  
F
G
2. Each press of the F, G button changes the display as below.  
RGB  
DVI  
S-Video  
Video  
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Connection  
Connection  
Connecting to a Desktop PC  
* You can connect the projector to a computer of VGA, SVGA, XGA and SXGA output.  
* You can use ARC function for the RGB signals of the Aspect Ration 4:3. (For HD wide input signals, you cannot use ARC function.)  
* Fundamentally, HD wide input signal is not included in the Spec, so the set may not support HD signal perfectly.  
* Refer to page 25 for the supported pc graphic card displays of the projector.  
< How to connect >  
a. Connect computer cable to RGB Input (PC/DTV) of the  
projector.  
b. If the PC has DVI output, connect DVI cable to DVI Input  
of the projector.  
c. Connect the audio cable of PC (LINE OUT sound port) to  
Audio of the projector.  
* If the PC has two audio out ports of SPEAKER OUT and LINE  
OUT, connect the LINE OUT port to get better sound quality.  
Connecting to a Notebook PC  
< How to connect >  
a.Connect computer cable to RGB Input (PC/DTV) of the  
projector.  
* If you set your computer, such as a notebook type IBM PC/AT  
compatible, to output the signal to both the display of your  
computer and the external monitor, the picture of the external  
monitor may not appear properly. In such cases, set the output  
mode of your computer to output the signal only to the external  
monitor. For details, refer to the operating instructions supplied  
with your computer.  
b. If the PC has DVI output, connect DVI cable to DVI Input  
of the projector.  
c. Connect the audio cable of PC (LINE OUT sound port) to  
Audio input of the projector.  
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Connection  
Connecting to a Video Source  
* You can connect a VTR, a camcorder, a LDP or any other compatible video image source to the projector.  
< How to connect 1 >  
a. Connect the Audio and Video input jacks of the projector to  
the output jacks of the A/V source with RCA to PC Audio  
cable, Video cable.  
<VCR>  
S
VIDEO  
(R) AUDIO (L)  
VIDEO  
OUT  
IN  
< How to connect 2 >  
b. Connect the S-Video input jack of the projector to the  
S-Video output jack of an A/V source with an S-Video cable.  
Connect the Audio input jacks of the projector to the output  
jacks of the A/V source with an RCA to PC Audio cable.  
* You can get better picture quality when connecting  
S-Video source to the projector.  
Connecting to a DVD  
* The output jacks (Y, PB, PR) of the DVD might be labelled as Y, Pb, Pr / Y, B-Y, R-Y / Y, Cb, Cr according to the equipment.  
< How to connect >  
a. Connect RCA to D-Sub Cable to RGB Input (PC/DTV) of  
the projector.  
* When connecting the DVD, match the jack colors with the  
DVD.(Y=green, PB=blue, PR=red)  
b.Connect the Audio port of the projector to the Audio output  
(R) AUDIO (L)  
Y
PB  
PR  
port (R, L) of the DVD.  
<DVD>  
c. Use a DVD with Component 480i(576i)/480p(576p) mode.  
Connecting to a D-TV Set-Top Box  
* To receive D-TV programmes, it is necessary to purchase a D-TV receiver (Set-Top Box) and  
connect it to the projector.  
* Please refer to the owner's manual of the D-TV Set-Top Box for the connection between projector and  
D-TV Set-Top Box.  
< How to connect an RGB source >  
a. Connect computer cable to RGB Input (PC/DTV) of the  
projector.  
* If the Set-Top Box has DVI output, use DVI cable.  
<D-TV Set-Top Box>  
b. Connect the Audio port of the projector to the Audio output  
DTV OUTPUT  
(R) AUDIO (L)  
DVI OUTPUT  
Y
PB  
PR  
port (R, L) of the D-TV Set-Top Box.  
c. Use a DTV receiver with DTV 480p(576p)/720p/1080i mode.  
* It can be supported the DVI/HDCP.  
< How to connect a Component source >  
a. Connect RCA to D-Sub Cable to RGB Input (PC/DTV) of  
the projector.  
* When connecting the D-TV Set-Top Box, match the jack  
colors with the D-TV Set-Top Box.(Y=green, PB=blue,  
PR=red)  
DTV OUTPUT  
(R) AUDIO (L)  
DVI OUTPUT  
Y
PB  
PR  
b. Connect the Audio port of the projector to the Audio output  
port (R, L) of the D-TV Set-Top Box.  
c. Use a DTV receiver with DTV 480p(576p)/720p/1080i mode.  
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Function  
Function  
* In this manual, the OSD(On Screen Display) may be different from your Projectors because it is just example to help with the Projector  
operation.  
* If there is no input signal present, the Menu will not be displayed on the screen.  
* This operating guide explains operation of RGB(PC) mode mainly.  
Video Menu Options  
Adjusting Video  
< RGB mode >  
1. Press the MENU button and then use F, G button to select the  
menu.  
Contrast  
50  
Brightness  
Color R  
Color G  
Color B  
Reset  
50  
50  
50  
50  
2. Press the OK (A) button and then use D, Ebutton to select a video item you  
want to adjust.  
MENU prev.  
move  
FG adjust  
3. Press the F, G button to adjust the screen condition as you want.  
< Video mode >  
G
Each adjustment of  
As required, re-adjust  
menu options will not affect other input source.  
menu options for the following input source :  
Video/S-Video/Component (480i(576i)), Component (480p(576p), 720p, 1080i)  
To restore the original image condition after changing it, press OK (A) button  
after selecting [Reset] item.  
In the broadcasting system NTSC, the picture item Tint is displayed and can  
be adjusted.  
F
G
Clear  
APC  
G
G
G
Contrast  
Brightness  
Color  
80  
50  
50  
50  
Sharpness  
To exit the menu display, repeatedly, press the MENU button.  
MENU prev.  
move  
FG select  
APC (Auto Picture Control)  
* Use APC to set the projector for the best picture appearance.  
* This function will not work in RGB mode.  
1. Press the MENU button and then use F, G button to select the  
menu.  
F
G
Clear  
APC  
Contrast  
Brightness  
Color  
80  
50  
50  
50  
2. Press the OK (A) button and then use D, Ebutton to select APC item.  
Sharpness  
3. Press the F, G button to adjust the screen condition as you want.  
MENU prev.  
move  
FG select  
G
Each press of the F, G button changes the screen as shown below.  
Clear  
Soft  
User  
G
To exit the menu display, repeatedly, press the MENU button.  
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Function  
Video Menu Options  
Auto Color Temperature Control  
1. Press the MENU button and then use F, G button to select the  
menu.  
F
F
G
G
Normal  
Normal  
ACC  
2. Press the OK (A) button and then use D, Ebutton to select ACC item.  
Gamma  
MENU prev.  
move  
FG select  
3. Press the F, G button to make appropriate adjustments.  
G
Each press of the F, G button changes the screen as shown below.  
Normal  
Cool  
Warm  
G
To exit the menu display, repeatedly, press the MENU button.  
Gamma Function  
1. Press the MENU button and then use F, G button to select the  
menu.  
F
F
G
Normal  
Normal  
ACC  
Gamma  
G
2. Press the OK (A) button and then use D, Ebutton to select Gamma item.  
MENU prev.  
move  
FG select  
3. Press the F, G button to adjust the screen condition as you want.  
G
Each press of the F, G button changes the screen as shown below.  
Normal  
Film  
Sports  
G
To exit the menu display, repeatedly, press the MENU button.  
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Function  
Special Menu Options  
Selecting language  
1. Press the MENU button and then use F, G button to select the  
menu.  
F
F
G
G
English  
4 : 3  
Language  
ARC  
2. Press the OK (A) button and then use D, Ebutton to select Language item.  
Flip Horizontal  
Flip Vertical  
3. Press the F, G button to select the language you want to use.  
MENU prev.  
move  
FG select  
G
On-Screen-Display (OSD) is marked in the selected language from this point.  
G
To exit the menu display, repeatedly, press the MENU button.  
Flip Horizontal Function  
* This function reverses the projected image horizontally.  
Use this function when rear projecting an image.  
1. Press the MENU button and then use F, G button to select the  
menu.  
F
F
G
G
English  
4 : 3  
Language  
ARC  
2. Press the OK (A) button and then use D, Ebutton to select Flip Horizontal  
item.  
Flip Horizontal  
Flip Vertical  
Press OK to Flip  
MENU prev.  
move  
A
OK  
3. Press the OK (A) button to see reversed image.  
G
Each time you press the button, the image will be reversed.  
To exit the menu display, repeatedly, press the MENU button..  
G
Flip Vertical Function  
* This function reverses the projected image vertically.  
* When you hang the projector upside down from the ceiling ,  
you will need to reverse the image vertically and horizontally.  
1. Press the MENU button and then use F, G button to select the  
menu.  
F
F
G
G
English  
4 : 3  
Language  
ARC  
Flip Horizontal  
Flip Vertical  
2. Press the OK (A) button and then use D, Ebutton to select Flip Vertical  
item.  
Press OK to Flip  
MENU prev.  
move  
A
OK  
3. Press the OK (A) button to see reversed image.  
G
Each time you press the button, the image will be reversed.  
To exit the menu display, repeatedly, press the MENU button.  
G
Using ARC Function  
1. Press the ARC button.  
Each press of the button changes the display as below.  
16  
:
9
4
:
3
ARC  
F
G
ARC  
F
G
16:9  
4 : 3  
You can also use this function by using the MENU button.  
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Function  
Special Menu Options  
Using Keystone function  
* Use this function when the screen is not at a right angle to the  
projector and the image is a trapezoid shape.  
* Only use the Keystone function when you cant get the best  
angle of projection, because it may cause a blazing fire of the  
screen.  
1. Press the KEYSTONE + or KEYSTONE - button.  
Keystone  
0
2. Press the KEYSTONE + or KEYSTONE - button to adjust the screen  
condition as you want.  
G
Keystone are adjusted from -50 to +50.  
G
You can also use this function by using the MENU button.  
Auto Source Function  
* Automatically detects the projector input signal.  
1. Press the MENU button and then use F, G button to select the  
2. Press the OK (A) button and then use D, Ebutton to select Auto Source item.  
3. Press the F, G button to select On or Off.  
menu.  
Keystone  
0
Auto Source  
Blank Image  
Lamp Mode  
Lamp Time  
F
Off  
G
F
F
G
G
Blue  
Normal mode  
0 Hr  
MENU prev.  
move  
FG select  
G
To exit the menu display, repeatedly, press the MENU button.  
Using Blank function  
* This function may be effective if you need to get attention of the audience  
during presentations, meetings or briefings.  
1. Press the BLANK button.  
G
The screen turns off to a background color and sound also turns off.  
G
You can choose the background color.  
(Refer to Selecting blank image color)  
2. Press any button to cancel the blank function.  
G
On exiting the blank status sound is also restored.  
Selecting Blank Image color  
1. Press the MENU button and then use F, G button to select the  
menu.  
Keystone  
0
2. Press the OK (A) button and then use D, Ebutton to select Blank Image  
item.  
Auto Source  
Blank Image  
Lamp Mode  
Lamp Time  
F
Off  
G
F
F
G
G
Blue  
Normal  
0 Hr  
3. Press the F, G button to select the color you want to use.  
MENU prev.  
move  
FG select  
G
Background color will be changed to the selected Blank function color from this point.  
To exit the menu display, repeatedly, press the MENU button.  
G
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Function  
Lamp Mode Function  
1. Press the MENU button and then use F, G button to select the  
menu.  
Keystone  
0
2. Press the OK (A) button and then use D, Ebutton to select Lamp Mode item.  
Auto Source  
Blank Image  
Lamp Mode  
Lamp Time  
F
Off  
G
F
F
G
G
Blue  
Normal mode  
3. Press the F, G button to select Normal mode or Silent mode.  
0 Hr  
G
To exit the menu display, repeatedly, press the MENU button.  
MENU prev.  
move  
FG select  
Checking lamp time  
1. Press the MENU button and then use F, G button to select the  
menu.  
GThe used lamp time is displayed.  
Keystone  
0
GWhen projector lamp is reaching the end of its life (over 2000 hours), the lamp indicator will  
Auto Source  
Blank Image  
Lamp Mode  
Lamp Time  
F
Off  
G
be turned red.  
F
F
G
G
Blue  
Normal mode  
GThe lamp warning LED illuminates red continuously in the case of excessive lamp time.  
0 Hr  
MENU prev.  
move  
FG adjust  
Using Still function  
1. Press the STILL button.  
* You can freeze the input image.  
<Moving Image>  
<Still Image>  
2. To exit Pause, press any button .  
* The STILL function would release automatically after about 10 minutes.  
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Function  
Screen Menu Options  
Auto Tracking Function  
*This function assures you of getting the best video quality by automatically  
adjusting the difference of horizontal size and synchronization of the image.  
*Auto Tracking function works in RGB input only.  
1. Press the AUTO button.  
G
Image positioning and synchronization are automatically adjusted.  
Auto Configure  
2. Adjust Clock or Phase in  
menu after operation of Auto Configure  
if you want to get better picture quality in accordance with diverse RGB  
input modes. In certain circumstances, you cant get the best picture  
quality only with auto-correction.  
You can also use this function by using the MENU button. (Only in RGB mode)  
For best results, perform this function while displaying a still image.  
Clock / Phase Function  
* Clock Function  
This function adjusts the horizontal width of the projected image to get the  
image to fit on the screen size.  
* Phase Function  
This function is for the detailed adjustment of the clock function.  
* Its available to adjust [Clock], [Phase] in RGB mode only.  
Auto Configure  
Clock  
0
1. Press the MENU button and then use F, G button to select the  
menu.  
Phase  
15  
0
Horizontal  
Vertical  
0
2. Press the OK (A) button and then use D , E button to select Clock or  
Phase item.  
MENU prev.  
move  
FG adjust  
3. Press the F, G button to adjust the screen condition.  
G
To exit the menu display, repeatedly, press the MENU button.  
Screen Position  
*If the image size does not fit the screen in accordance with the input  
source, set the position of the image by selecting Horizontal / Vertical  
position. (RD-JT91:RGB, RD-JT92:RGB, RGB-DTV, DVI-DTV)  
Auto Configure  
Clock  
0
1. Press the MENU button and then use F, G button to select the  
menu.  
Phase  
15  
0
Horizontal  
Vertical  
0
2. Press the OK (A) button and then use D, Ebutton to select Horizontal or  
Vertical item.  
MENU prev.  
move  
FG adjust  
3. Press the F, G button to adjust the screen condition as you want.  
G
Horizontal, Vertical are adjusted from -50 to +50.  
Based on the input mode, the adjustment range may be changed.  
To exit the menu display, repeatedly, press the MENU button.  
G
G
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Information  
Supported Monitor Display  
* The projector displays the best image quality at a resolution of 800x600 pixels.  
To display other resolution images, the projector compresses or expands it to 800x600.  
The following table lists the display formats supported by the projector.  
RD-JT91  
RD-JT92  
Sources  
Format  
Vertical Freq.(Hz)  
HorizontalFreq.(kHz)  
Sources  
Format  
Vertical Freq.(Hz)  
HorizontalFreq.(kHz)  
VGAEGA  
640X350  
640X350  
640X400  
640X400  
720X400  
720X400  
640X480  
640X480  
640X480  
640X480  
640X480  
800X600  
800X600  
800X600  
800X600  
800X600  
1024X768  
1024X768  
1024X768  
1024X768  
1152X864  
1152X864  
1152X864  
1280X960  
1280X1024  
70.090Hz  
85.080Hz  
70.090Hz  
85.080Hz  
70.082Hz  
85.039Hz  
59.940Hz  
66.667Hz  
72.800Hz  
75.00Hz  
85.008Hz  
56.250Hz  
60.317Hz  
72.188Hz  
75.00Hz  
85.061Hz  
60.004Hz  
70.069Hz  
75.029Hz  
84.99Hz  
60.053Hz  
70.01Hz  
75.00Hz  
31.468kHz  
37.861kHz  
31.468kHz  
37.861kHz  
31.469kHz  
37.927kHz  
31.469kHz  
35.00kHz  
37.861kHz  
37.500kHz  
43.269kHz  
35.156kHz  
37.879kHz  
48.077kHz  
46.875kHz  
53.674kHz  
48.363kHz  
56.476kHz  
60.023kHz  
68.677kHz  
54.348kHz  
63.995kHz  
67.500kHz  
60.00kHz  
VGAEGA  
640X350  
640X350  
640X400  
640X400  
720X400  
720X400  
640X480  
640X480  
640X480  
640X480  
800X600  
800X600  
800X600  
800X600  
800X600  
1024X768  
1024X768  
1024X768  
1024X768  
1152X864  
1152X864  
1152X864  
1280X960  
1280X1024  
70.090Hz  
85.080Hz  
70.090Hz  
85.080Hz  
70.082Hz  
85.039Hz  
66.667Hz  
72.800Hz  
75.00Hz  
85.008Hz  
56.250Hz  
60.317Hz  
72.188Hz  
75.00Hz  
85.061Hz  
60.004Hz  
70.069Hz  
75.029Hz  
84.99Hz  
60.053Hz  
70.01Hz  
75.00Hz  
31.468kHz  
37.861kHz  
31.468kHz  
37.861kHz  
31.469kHz  
37.927kHz  
35.00kHz  
37.861kHz  
37.500kHz  
43.269kHz  
35.156kHz  
37.879kHz  
48.077kHz  
46.875kHz  
53.674kHz  
48.363kHz  
56.476kHz  
60.023kHz  
68.677kHz  
54.348kHz  
63.995kHz  
67.500kHz  
60.00kHz  
PC98 / VGA text  
VGA  
PC98 / VGA text  
VGA  
SVGA  
SVGA  
XGA  
XGA  
SXGA  
SXGA  
60.00Hz  
60.020Hz  
60.00Hz  
60.020Hz  
63.981kHz  
63.981kHz  
* If the projector does not support the input signal, Out of Rangemessage appears on the screen.  
* The projector supports DDC1/2B type as Plug & Play function. (Auto recognition of PC monitor)  
* The Synchronization input form for horizontal and vertical frequencies are Separate, Composite and SOG.  
* According to PC, the optimum vertical frequency may not be displayed up to the optimum frequency of set in  
Registration information (Display registration information). (ex, The optimum vertical frequency may be displayed  
up to 75Hz or under in the resolution of 640X480 or 800X600.)  
<DVD/DTV Input>  
Signal  
Component-*1 RGB(DTV)-*2  
O
O
O
O
O
O
O
X
O
O
O
X
480i  
480p  
720p  
1080i  
576i  
NTSC(60Hz)  
PAL(50Hz)  
576p  
1080i  
O
O
* Cable type  
1-  
RCA to D-Sub Cable  
2- Computer Cable  
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Information  
Maintenance  
* The projector needs little maintenance. You should keep the lens clean because any dirt or stains may appear  
on the screen. If any parts need to be replaced, contact your dealer. When cleaning any part of the projector,  
always turn the power off and unplug the projector first.  
Cleaning the lens  
Clean the lens whenever you notice dirt or dust on the surface of it. Wipe the lens surface gently with an air spray or a soft,  
dry lint-free cloth.  
To remove dirt or stains on the lens, moisten a soft cloth with water and a neutral detergent and wipe the lens surface gently.  
Cleaning the Projector Case  
To clean the projector case, first unplug the power cable. To remove dirt or dust, wipe the casing with a soft, dry, lint-free cloth. To remove  
stubborn dirt or stains, moisten a soft cloth with water and a neutral detergent and then wipe the casing.  
Do not use alcohol, benzene, thinners or other chemical detergents as these can cause the casing to be warped or discolored.  
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Information  
Specifications  
MODEL  
RD-JT91  
RD-JT92  
resolution  
horizontal / vertical ratio  
DLP panel size  
screen size  
800(Horizontal) x 600(Vertical)pixel  
4:3(horizontal:vertical)  
854(Horizontal) x 480(Vertical)pixel  
16:9(horizontal:vertical)  
0.55 inches  
1.01~5.08m(40~200 inches)  
remote control distance  
speaker system  
zoom ratio  
12m  
1W(mono)  
1:1.2  
Video compatibility  
Power  
NTSC/PAL/SECAM/NTSC4.43/PAL-M/PAL-N  
AC 100 - 240V~50/60Hz, 3A-1A, 260W  
height(mm/inches)  
breadth(mm/inches)  
length(mm/inches)  
100.7/3.9  
330/12.9  
220.1/8.7  
Operating Condition  
temperature  
Projector Lamp  
lamp model  
In operation : 32~104°F(0°C~40°C)  
In storage and transit : -4~140°F(-20°C~60°C)  
AJ-LT91  
humidity  
lamp power consumption  
In operation : 0~ 80% relative humidity by dry hygrometer  
Not in operation : 0 ~ 90% relative humidity by dry hygrometer  
200W  
LAMP Replacement  
WARNING : Lamp is no user replaceable part.  
Do not touch and open the lamp replace cover of  
bottom enclosure. It could cause injury and electric  
shock due to high temperature and voltage.  
Only service personnel can replace lamp after  
minimum 3 min. from disconnect mains plug to  
avoid injury cause by high temperature of lamp.  
*Applicable Lamp: Manufactured by USHIO Inc.,  
type NSH200LG  
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P/NO : 3828VA0482B b (373-026H)  
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