LG RL-JA20 User manual

R
P/NO : 3828VA0360J(373-026H)
RL-JA20
OWNER’S MANUAL
LG LCD PROJECTOR
LG LCD PROJECTOR
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 :
Your LG
®
brand LCD Projector will be repaired or replaced as set forth below, if it proves to be defective in mate-
rial or workmanshipunder normal use, during the warranty period ("Warranty Period") listed below, effective from
the date ("Date of Purchase") of original consumer purchase of the product. This warranty is good only to the orig-
inal purchaser of the product and effective only when used in the United States, excluding U.S. Territories.
LG®Brand LCD Projector
U.S. Limited Warranty
THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIM-
ITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TO THE
EXTENT ANY IMPLIED WARRANTY IS REQUIRED BY LAW, IT IS LIMITED IN DURATION TO THE EXPRESS
WARRANTY PERIOD ABOVE. NEITHER THE MANUFACTURER NOR ITS U.S. DISTRIBUTOR SHALL BE LIABLE
FOR ANY INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY NATURE,
INCLUDING WITHOUT LIMITATION, LOST PROFITS, LOST OR CORRUPTED PROGRAMMING OR DATA, OR
ANY OTHER DAMAGE WHETHER BASED IN CONTRACT, TORT, OR OTHERWISE. Some states do not allow the
exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts, so
the above exclusion or limitation may not apply to you. This warranty gives you specific legal rights and you may also
have other rights that vary from state to state.
WARRANTY PERIOD:
LABOR: Two Years from the Date of Purchase. Your
unit will
be repaired or replaced with a new, substitute model or
factory
reconditioned unit, at the manufacturer’s option. If
repaired,
parts used in the repair may be new or remanufactured.
Parts, excluding Projector Lamp: Two Years from
the Date of Purchase.
Projector Lamp: 90 Days from the Date of Purchase.
Replacement Units and Repair Parts are warranted for
the remaining portion of the original unit’s warranty
period.
EFFECTIVE DATE OF WARRANTY: Your warranty peri-
od begins on the date of sale to the original consumer /
end user. KEEP THE DEALER’S DATED BILL OF SALE OR
PROOF OF DELIVERY as evidence of the purchase date.
You will be required to submit a legible copy of your bill
of sale or proof of delivery when requesting warranty
service.
SERVICE: The customer will be required to ship the unit
to the Factory Service Center to make the necessary
repairs. LG is not responsible for the de -installation or
re-installation of the unit from its mounted position.
Please call: 1-800-243-0000 to locate your nearest
LG®Brand Authorized Service Center.
For further Instructions, see “For Service” below
THIS LIMITED WARRANTY DOES NOT APPLY TO:
The cost of repair or replacement under these excluded circumstances shall be borne by the consumer.
●damage caused in shipping or transit
●service required as a result of improper installation,
including incorrect or insufficient AC supply (please
consult the owner’s manual for power supply
requirements).
●installation or repair of antenna systems, cable
converters, cable company supplied equipment, or
other components in a video system
●set-up or adjustment on consumer controls, or
damage caused by improper adjustments
●damage caused by other system components
●any unit that has been modified or incorporated
into any other product
●replacement of batteries on the remote control.
●replacement of the Projector Lamp except within
the first 90 days
●damage (including cosmetic damage), failure, loss
or personal injury due to misuse, abuse, negli
gence, improper maintenance or storage, or to acts
of nature or other causes beyond our control.
(Causes beyond our control include but are not
limited to lightning strike, power surges, power out
ages and water damage.)
●repair or replacement of warranted parts by other
than an LG
®
Brand authorized service centers.
●units purchased or serviced outside of the U.S.A.
●product where the original factory serial numbers
have been removed, defaced or changed in any
way.
●product sold and labeled as "as is, where is" or simi
lardisclaimer.
●software errors that do not disable functionality,
operating software protocols adopted after the date
of manufacture or for use outside of the United
States.

LCD PROJECTOR
LCD PROJECTOR
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.
R
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.

After reading this
manual please keep
it in a safe place for
future reference.
CONTENTS
INTRODUCTION
Safety Instructions..................................................................4
Names of parts .....................................................................12
INSTALLATION AND COMPOSITION
Installation Instructions.........................................................18
Composition..........................................................................20
Turning on the Projector.......................................................22
Turning off the Projector.......................................................23
Operating the Projector ........................................................24
Selecting source mode.........................................................25
CONNECTION
Connecting to a Desktop PC................................................26
Connecting to a Notebook PC..............................................27
Connecting to a Macintosh Desktop PC ..............................28
Connecting to a Macintosh PowerBook ...............................31
Connecting to a wireless transmitter (option).......................32
Connecting to a wireless receiver (option)...........................33
Connecting to a Video Source..............................................34
Connecting to a DVD............................................................35
Connecting to a D-TV Set-Top Box......................................36
BASIC FUNCTIONS
Function checking.................................................................37
Using Still function................................................................38
SPECIAL FUNCTIONS
Selecting language...............................................................39
Checking lamp time..............................................................40
Manual Color Temperature Control ......................................41
Using Blank function.............................................................42
Using Flip Horizontal / Vertical function................................44
Twin Picture function ............................................................46
POSITIONING
Adjusting screen display.......................................................48
Using Keystone function.......................................................49
Using Zoom function.............................................................50
Using ARC function ..............................................................51
VIDEO
Adjusting Video.....................................................................52
TRACKING
Using Tracking function ........................................................54
RS-232C
External control device setup ...............................................56
INFORMATION
Supported Monitor Display ...................................................63
Maintenance .........................................................................64
Memo....................................................................................65
Specifications ......................................................................66

4
Safety Instructions
GPlease take note of the safety instructions to prevent any potential accident or misuse of the projector.
G After reading this manual, keep it in the place that the user always can contact easily.
GSafety 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.
Indoor Installation-WARNING
Indoor Installation-NOTES
R
R
R
Do not place the Projector in direct sunlight or
near heat sources such as radiators, fires and
stove etc.
- This may cause
a fire hazard !
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.
- This may create a fire hazard or an
electric shock
hazard !
R
Do not place inflammable materials
beside the projector
- This may cause a fire hazard !
R
Do not allow children to hang on the
installed projector.
- It may cause the projector to fall, causing
injury or death.

5
INTRODUCTION
Indoor Installation-NOTES
R
Do not place the projector where it might
be exposed to dust.
- This may cause a fire hazard !
R
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.
R
Only use the projector on a level and sta-
ble surface.
- It may become unstable and affect operation.
R
Ensure good ventilation around the pro-
jector. The distance between the projector
and the wall should be more
than 30cm.
- An excessive increase
in its internal
temperature may
cause a fire hazard!
KK
K
Do not block the vents(air intake/exhaust) of
the projector or restrict air-flow in any way.
- This would cause the internal temperature to
increase and could cause a fire hazard!
R
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 !
Air intake exhaust pipe
R
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 !
R
In case of using a receiver (VCR, Digital
Set Top Box), bend antenna cable
between inside and outside building to
prevent rain from flowing in.
- This may cause water
damaged inside the
projector and could
give an electric shock.
Outdoor Installation-WARNING

R
In case of using a receiver (VCR, Digital
Set Top Box), do not place an antenna in
the vicinity of power
lines.
- This may cause an
electric shock.
If connecting a receiver (VCR, Digital Set
Top Box), contact your service centre to
erect an antenna as this
work should be carried
out by skilled personnel.
- This may cause an
electric shock.
In case of using a receiver (VCR, Digital
Set Top Box), there should be enough dis-
tance between an outside antenna and
power lines to keep the former from
touching the latter even when
the antenna falls.
- This may cause an electric shock.
R
Earth wire should be connected.
- If the earth wire is not connected, there is possible a
danger of electric shock caused by the current leak-
age.
- If grounding methods are not possible, a separate cir-
cuit breaker should be employed and installed by a
qualified electrician.
- Do not connect ground
to telephone wires,
lightning rods or
gas pipe.
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 !
R
Do not use too many plugs on the Mains
multi-outlet.
- It may result in
overheating
of the outlet
and causes a
fire hazard !
Outdoor Installation-NOTES
Power-WARNING
Short-circuit
breaker
Power
6
Safety Instructions

7
INTRODUCTION
Never touch the power plug with a wet
hand
- This may cause an electric shock hazard !
Hold the plug firmly when unplugging. If
you pull the cord the cord may be dam-
aged.
- 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 outlet is loose.
- 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 !
R
Place the projector where people will not
trip or tread on the power lead.
R
Do not turn the projector On/Off with plug-
ging-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.
R
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 !
Power-NOTES

8
Safety Instructions
R
Do not place anything containing liquid on
top of the projector such as flowerpot,
cup, cosmetics or candle.
- This may cause a fire hazard !
R
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 !
R
Do not allow any objects to fall into the
projector.
- This may cause an electric shock
hazard !
R
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 !
R
Dispose of used batteries carefully and
safely.
- In the case of a battery being
swallowed by a child
please consult a
doctor immediately.
R
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 !
R
Do not use the projector in a moving vehi-
cle.
- This may cause an
accident.
R
Do not remove any covers (except lens
cover). High risk of Electric Shock!
Using-WARNING

9
INTRODUCTION
Using-WARNING
Using-NOTES
K
K
K
RGB(DC/DTV )
RS-232C
Do not touch metal parts during or soon
after operation since the vents and lamp
cover will remain very hot!
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.
R
Do not drop the projector or allow impact
shock.
- This may cause mechanical
failure or personal injury !
R
Do not place heavy objects on top of pro-
jector.
- This may cause mechanical failure or personal
injury!
R
Don’t look directly onto the lens when the
projector is in use. Eye damage may occur!
R
Take care not to cause impact to the lens
particularly when moving the projector.

10
Safety Instructions
R
Do not use water while cleaning the pro-
jector
- This may cause damage to the
projector or an electric
shock hazard.
R
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 !
R
Do not touch the lens of the projector. It is
delicate and easily damaged.
R
Do not use any sharp tools on the projec-
tor as this will damage the casing.
Using-NOTES
Cleaning-WARNING
R
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.

11
INTRODUCTION
R
Unplug this product from the wall outlet
before cleaning. Do not use liquid clean-
ers or aerosol cleaners.
- This may cause damage to
the Projector or cause
an electric shock hazard !
R
Contact the Service Center once a year to
clean the internal parts of the projector.
- Accumulated dust can cause
mechanical failure.
RR
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 !
R
If a receiver (VCR, Digital Set Top Box) is
connected to the projector, in the event of
lightning or thunder storm, unplug the pro-
jector and aerial from the wall outlet.
- This will prevent damage to
the projector and possible
electric shock.
Only use the specified type of battery.
- This could cause damage to the remote
control.
Do not mix new batteries with old batter-
ies.
- This may cause the batteries to overheat and
leak.
Cleaning-NOTES
Others-WARNING
R
Be sure to unplug if the projector is not to
be used for a long period.
Accumulated dust
may cause a fire
hazard!
K
Refer lamp servicing to qualified service
personnel.
Others-NOTES

12
Names of parts
R
ACIN
YP B P R
Video
S-Video Audio
DC 12V OUT Component (DVD/DTV)
INPUT SELECT PATTERN
POWER
MENU
VOL
VOL
OK /
Main Body
Main Body
Indicators
Front remote control sensor
Horizontal leveler
Component(DVD/DTV)
DC 12V OUT
Power button
Rear remote control sensor
Control panel
* The LCD 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.
Focus ring
Zoom ring
Foot adjusting
button
S-Video, Video,
Audio
Lens cover
Horizontal leveler

13
INTRODUCTION
K
A-RGB1
RS-232C Audio
A-RGB2/D-RGB
Rear Connecting Part
Rear Connecting Part
RS-232C
A-RGB1 A-RGB2/D-RGB
Audio
Kensington Security
System Connector
(Refer to page 21)
Rear remote
control sensor

14
Names of parts
Control Panel
Control Panel
INPUT SELECT PATTERN
POWER
VOLVOL
MENU OK /
POWER Button
,Button
Selects menus and items in the menus.
MENU Button
Selects or closes menus.
INPUT SELECT Button
Switches to A-RGB1,
A-RGB2, D-RGB, Video,
S-Video, Component mode.
VOLUME Button
Adjusts volume level and
functions of menus.
OK/AButton
Checks present mode and
saves the change of functions.
PATTERN Button
When pressing the PATTERN
button, the test screen for
focus adjustment is displayed.

15
INTRODUCTION
POWER
PICTURE
SWAP
MENU MUTE
OK
VIDEO COMPONENT A-RGB1
ZOOM+
ZOOM-
VOLVOL
ARC
AUTO TRACKING
APC
KEYSTONE
SUB INPUT
TWIN
BLANK
STILL
INPUT SELECT
Remote Control
Remote Control
POWER Button
KEYSTONE Button(Refer to p.49) INPUT SELECT Button
Direct input select
(VIDEO, COMPONENT, A-RGB1) Button
STILL Button(Refer to p.38, 47)
BLANK Button(Refer to p.42)
SUB INPUT Button(Refer to p.46)
TWIN PICTURE Button(Refer to p.46)
MUTE Button
* Switches the sound on or off.
UP/DOWN buttons
APC Button(Refer to p.53)
ARC Button(Refer to p.51)
SWAP Button(Refer to p.47)
ZOOM-, + Button(Refer to p.50)
AUTO TRACKING Button(Refer to p.54)
OKA Button
VOL(F, G) Button
Inserting the 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”alkaline batteries.
Don’t mix used batteries with new batteries.
MENU Button

Names of parts
Projector Status Indicators
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.
16
RR
Lamp Indicator
Operation indicator
Temperature indicator
“” is the warning message on screen.
Red Initializing hardware after the main power applied.
Orange Standby.
Operation Indicator Green On operation.(Turn on the lamp)
Orange(flashing) Projector lamp is cooling as power out(2 minutes)
Off Power off.
Projector lamp is reaching the end of its life and needs
Red to be replaced with a new lamp.(over 1500 hours)
The OSD, “Replace the Lamp”is displayed 10 seconds
from the first power on.
Lamp Indicator
Red(flashing) 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.
Green(flashing) The lamp cover or absorption pipe cover is not closed.
Orange
This projector is in high temperature. If you don’t
turn off the projector, it’ll be turned off automatically.
Temperature Indicator “Temperature is Too High”
Red The projector is turned off as its high temperature.
Red (flashing) Power has turned off due to problem with the
internal cooling fan. Contact your service center.

Accessories
Accessories
17
INTRODUCTION
POWER
PICTURE
SWAP
MENU MUTE
OK
VIDEO COMPONENT A-RGB1
ZOOM+
ZOOM-
VOLVOL
ARC
AUTO TRACKING
APC
KEYSTONE
SUB INPUT
TWIN
BLANK
STILL
INPUT SELECT
Optional Extras
* Contact your dealer to purchase these items.
* Contact your dealer for replacing a new lamp.
Remote Control Power Cord Audio/Video Cable
Audio Cable
Operating guide
Computer Cable SCART to RCA jack (option)
Lamp
Portable Bag
S-Video Cable
Projection Screen
DVI Cable
1.5V
1.5V
Batteries 2 (size AAA)
DVI to VGA Cable
CH1CH2CH3
CHS/W
CH4
CH1CH2CH3
CHS/W
CH4
A/V wireless
transmitter-receiver
CH1CH2CH3
CHS/W
CH4
CH1CH2CH3
CHS/W
CH4
* See A/V wireless transmitter-
receiver operating guide for
installation and connection etc.
1 2 3 4 5 6 7 8 9
ON
MAC Desktop
Adaptor

18
Installation Instructions
Provide proper ventilation for this projector.
● The 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.
Place this projector in adequate temperature and humidity conditions.
● Install this projector only in a location where adequate temperature and humidity is available.
(refer p.67)
●Do not place the projector on a carpet, rug
or other similar surface. It may prevent a
adequate ventilation of the projector bot-
tom. This product should be mounted to a
wall or ceiling only.
* Don’t place the projector in the following conditions. It may cause malfunction or product damage.
R
R
●Never push projector or spill liquid of any
kind into the projector. ●Leave an adequate distance(30cm or more) around the projector.
R
R
R
Don’t place the projector where it can be covered with dust.
● This may cause overheating of the projector. Clean the Air filter periodically.
R

19
INSTALLATION AND
COMPOSITION
Do not obstruct the slots and openings of the projector. This may cause overheating
and create a fire hazard.
R
The LCD 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 LCD projector Screen. This is a normal result of the man-
ufacturing process and does not indicate a malfunction.
To display DTV programmes, 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.

20
Composition
Basic Operation of the Projector
Basic Operation of the Projector
1
1. Place the projector on a sturdy and horizontal surface with the PC or AV source.
2
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
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 49.)
4
4. Connect the cables of the projector to a wall power socket and other connected sources.
projection distance based on the picture format
* The longest/shortest distance show status when adjusted by the zoom function.
Center line of lens
Screen height (X)
Projection distance (D)
Projection off-set ratio:114%
16:9 picture format mm
40″60″80″90″100″110″120″150″200″
498 747 996 1121 1245 1370 1494 1868 2491
1715 2572 3430 3859 4287 4716 5145 6431 8575
2229 3344 4459 5016 5574 6131 6688 8361 11147
4:3 picture format mm
40″60″80″90″100″110″120″150″200″
610 914 1219 1372 1524 1676 1829 2286 3048
2099 3148 4198 4722 5247 5772 6297 7871 10494
2729 4093 5457 6139 6821 7503 8186 10232 13643
screen
size
screen
height (X)
The shortest
distance (D)
The longest
distance (D)
screen
size
screen
height (X)
The shortest
distance (D)
The longest
distance (D)