LG RD-JT51 User Manual

DLP PROJECTOR

USER’S GUIDE

Thank you for purchasing the DLPTM Projector.

Please read this user’s guide to ensure correct use of the device. Save this user’s
guide for future reference.

OUTLINE

This DLPTM Projector can display various computer signals and NTSC/PAL/SECAM video
signals.

FEATURES

1. High Brightness

2. High Resolution

3. Compact Size, Feather Weight for Portability

4. RGB Input Terminal

5. One Touch Auto-Adjustment Function

6. Easy Keystone Adjustment

Copyright

Copyright © 2003. All rights reserved. No part of this publication may be reproduced,
transmitted, transcribed, stored in a retrieval system or translated into any language or
computer language, in any form or by any means, electronic, mechanical, magnetic, optical,
chemical, manual or otherwise, without the prior written permission of the company.

Disclaimer

The company makes no representations or warranties, either expressed or implied, with
respect to the contents hereof and specifically disclaims any warranties, merchantability or
fitness for any particular purpose. Furthermore, the company reserves the right to revise
this publication and to make changes from time to time in the contents hereof without
obligation of the company to notify any person of such revision or changes.

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

FCC Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

EEC STATEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Shipping Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Projector Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Projector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

External Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Adjuster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Projector Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Remote Control Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Remote Control Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installing or Replacing Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Display Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Connecting to Various Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Digital Keystone Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Auto Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Source Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Blank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Menu System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1. Display Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2. Image Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3. Source Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4. Control Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5. PIP Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . .23

Lamp Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Use and Replacement of the Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Lamp Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Operative Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . .25

DLP Personal Projector

iii

Common Problems & Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Specifications . . . . . . . . . . . . . . . . . . . . . . . . .27

Projector Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Suppoted timing for Analog RGB input . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Supported timing for YPbPr input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Supported timing for Video and S-Video inputs . . . . . . . . . . . . . . . . . . . . 29

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . .30

iv

DLP Personal Projector

INTRODUCTION

Caution

TO PREVENT SHOCK, DO NOT OPEN THE CABINET. NO USER –SER­VICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL. PLEASE READ THIS USER’S GUIDE BEFORE YOU
OPERATE YOUR PROJECTOR. SAVE THIS USER’S GUIDE FOR
FUTURE REFERENCE .

Safety Instructions

1. Read this user’s guide before you operate your projector and save it for
future reference.

2. The lamp becomes extremely hot during operation. Allow the projector to
cool for approximately 45 minutes prior to removing the lamp assembly
for replacement. Do not operate lamps beyond the rated lamp life.
Excessive operation of lamps beyond the rated life could cause them to
explode on rare occasions.

3. Never replace the lamp assembly or any electronic components unless
the projector is unplugged.

4. To reduce the risk of electric shock, do not disassemble this appliance.
Take it to a qualified technician when service or repair is required.
Incorrect reassembly can cause electric shock when the appliance is
subsequently used.

5. Do not place this product on an unstable cart, stand, or table. The
product may fall, sustaining serious damage.

6. Do not touch the top cover when the projector is under operation.

7. The projector must be packaged into a carry bag while moving to
another place for operation.

8. To avoid the lamp being damaged, never turn the Main Power Switch off
in the back of the projector during operation. The normal operation
procedures are to turn the power button off, and, after a 90-second
cooling process, turn off the Main Power Switch.

DLP Personal Projector

1

Caution

• Always open the lens shutter when the projector lamp is on.

• Do not look straight at the projector lens during operation. The
intense light beam may damage your eyes.

• In some countries, the line voltage is NOT stable. This projector is
designed to operate safely within a bandwidth of 100 to 240 volts,
but could fail if power cuts or surges of + 10 volts occur. In these
high-risk areas, it is recommended that a power stabilizer unit be
used in conjuction with this projector.

• Do not place this projector on the top of cloth or carpet.

• Do not touch the ventilation grill when the projector is under opera­tion.

Save this user’s guide: The information contained in this manual will assist

you in operating and maintaining your personal projector.

FCC Statement

CLASS B: 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 distance 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.

EEC STATEMENT

This machine was tested against the 89/336/EEC (European Economic
Community) for EMC (Electro Magnetic Compatibility) and fulfills these
requirements.

2

DLP Personal Projector

Shipping Contents

The projector is shipped with the cables required for connection to standard
PC or laptop computers. Carefully unpack and verify that you have all the
items shown below. If any of these items are missing, please contact
personnel at the place of purchase.

Projector User’s Guide Quick Start Guide

TOSHIBA

LITHIUM BATTERY

CR2025

3v

JAPAN

Battery

Remote Control Video Cable

VGA Cable

3-2 Converter

S.A. & India

240V 110V

Power Cord

Optional Accessories

1. 200W lamp module

2. Macintosh adapter

3. Ceiling mount kit

4. Deluxe soft carry case

5. HDTV cable (YP

bPr)

DLP Personal Projector

S-Video Cable

220V

3

Projector Description

Projector

S-Video connector

Video
connector

RGB (PC / Mac) /
YPbPr signal input

Projection lens adjuster

Ventilation grill

IR remote sensor

Main power switch

AC power cord inlet

External control panel
(see

page 5

Kensington lock

Rear adjuster foot

"External Control Panel" on

for more detailed information)

Projection lensFront adjuster foot

IR remote sensor

Lamp door

Rear adjuster foot

4

DLP Personal Projector

External Control Panel

2. Temp Indicator

3. Lamp Indicator

4. POWER

5. MENU / EXIT

. KEYSTONE - / Left

KEYSTONE

7. AUTO

12. DOWN

1. Power indicator

The indicator shows green for a normal
state. When the projector is in Standby
mode, it shows orange toggle. See
"Operative Information" on page 24 for
more detailed information.

2. Temp indicator

The Temp indicator shows red or flashed
red when the system temperature is too
high or has fan problems, which may
occur if the projector is operated
improperly. See "Operative Information"
on page 24 for more detailed information.

3. Lamp Indicator

The Lamp Indicator will light up when the
lamp needs service, cooling or
replacement. See “Lamp Information” on
page 23 and "Operative Information" on
page 24 for more detailed information.

4. POWER

Press and hold the POWER key for 1
second to turn on or off the projector.

5. MENU / EXIT

Brings the OSD menu or leaves the OSD
menu.

1. Power Indicator

POWER

MENU

/EXIT

-

AUTO BLANK

KEYSTONE

SOURCE

+

11. U p

6. SOURCE

10.KEYSTONE + / Right

8. BLANK

6. SOURCE

Selects signal sources from among
Analog RGB, YP

bPr, S-Video and

Composite Video.

7. AUTO

Automatically determines the suitable
frequency and clock for current received
signals. The auto adjustment function will
not affect the current brightness and
colors settings.

8. BLANK

Uses BLANK to hide the screen image.
You can press BLANK again or RETURN
to bring the image back.

9. KEYSTONE - 10. KEYSTONE +

Presses KEYSTONE - to correct a image
that is wider at the top. Presses
KEYSTONE + to correct a image that is
wider at the bottom.

9. Left < 10. Right >

11. Up ^ 12. Down v

When the On-Screen Menu system is
activated, the four buttons help you
navigate among choices and settings in
the menus and sub-menus.

DLP Personal Projector

5

Adjuster

The projector is equipped with 1 quick-release adjuster foot. Push the button
to adjust its tilt angle.

1. Lift the projector up and press the adjuster button to release the

adjuster. The adjuster will drop into position and be locked.

2. Screw the rear adjuster to fine-tune the tilt angle.

Note: The adjuster can only bear the weight of the projector itself .
Please do not place any additional burden on it.

1.

2

Projector Features

The projector integrates high-performance optical engine projection and a
user-friendly design to deliver high reliability and ease of use.

The projector offers the following features:

• Small and light for portability

• High quality manual zoom lens

• One-key auto-adjustment to display the best picture quality

• Digital keystone correction to correct distorted images

• Adjustable color balance control for data/video display

• Ultra-high brightness projection lamp

• Ability to display 16.7 million colors

• On-screen menus in 8 languages: English, French, German, Italian,

Spanish, Korean, Traditional Chinese and Simplified Chinese

• Switchable Economic mode to adjust the power consumption

• Powerful AV function to provide high quality AV picture

• HDTV compatibility (YP

Note: The brightness of the projected image will vary depending on the
ambient lighting conditions and contrast / brightness settings.

bPr)

6

DLP Personal Projector

Remote Control Description

+

E

The remote control sensors are located in the front/ back of the projector.

POWER

UP

MENU / EXIT

3 LEFT /

KEYSTONE -

AUTO

DOWN

BLANK

PIP POSITION

SOURCE

ZOOM IN

ZOOM OUT

FREEZE
4 RIGHT /

KEYSTONE

RETURN

PIP SOURC

Remote Control Functions

1.POWER, MENU/EXIT, SOURCE, AUTO, BLANK

The functions of these buttons are the same as those on the external control
panel. Please refer to "External Control Panel" on page 5 for more
information.

2. 3 LEFT / KEYSTONE - ,4 RIGHT / KEYSTONE +

Whe the OSD menu is activated, the buttons function as 3 Left / 4 Right.
For the rest of time, the buttons function as Keystone - / Keystone +.

3. FREEZE

The image can be frozen when FREEZE is pressed. A "Pause" icon will
appear in the lower right corner of the screen. To release the freeze function,
press the FREEZE button again or press RETURN button.

DLP Personal Projector

7

4. ZOOM IN/OUT

By pressing ZOOM +, the center of the picture will be magnified. When the +
button is pressed again, the picture is further magnified, up to four times the
original size. By pressing ZOOM-, the size of the image is reduced. When
the - button is pressed again, the picture is further reduced until it is restored
to its original size. To return to the normal display mode, press the RETURN
button. (This function can be used in combination with FREEZE.)

5. PIP SOURCE

User can activate PIP and select the source between S-Video and Video
while the input source is Analog RGB. The PIP source changes in the order
of S-Video, Video, and off.

6. PIP POSITION

While PIP is activated, you can select one of the nine positions.

7. RETURN

Back to the last state from “ZOOM”, “BLANK”, “FREEZE” or “PIP”.

8

DLP Personal Projector

Installing or Replacing Batteries

1. Use a pointy-sided stick to
release the barttery tray.
Pull the tray off.

2. Install or replace a battery.

3. Snap the battery tray back into place.

Caution

Avoid excessive heat and humidity. There may be danger of an explo­sion if batteries are incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer. Dispose of used
batteries according to the manufacturer’s instructions.

DLP Personal Projector

9

INSTALLATION

Display Size

Place the projector at the required distance from the screen according to the

desired picture size (see the table below).

RD-JT51 (SVGA) screen size chart (4:3 aspect ratio)

Distance from

screen

feet inches feet inches feet inches meters cm meters cm meters cm

4 48 1.96 23.5 2.40 28.7 1 100 0.49 48.9 0.60 59.9
6 72 2.93 35.2 3.59 43.1 1.5 150 0.73 73.4 0.90 89.8

8 96 3.91 47.0 4.79 57.5 2 200 0.98 97.8 1.20 119.8
10 120 4.89 58.7 5.99 71.9 2.5 250 1.22 122.3 1.50 149.7
12 144 5.87 70.4 7.19 86.2 3 300 1.47 146.7 1.80 179.7
14 168 6.85 82.2 8.39 100.6 3.5 350 1.71 171.2 2.10 209.6
16 192 7.83 93.9 9.58 115.0 4 400 1.96 195.7 2.40 239.6
18 216 8.80 105.7 10.78 129.4 4.5 450 2.20 220.1 2.70 269.5
20 240 9.78 117.4 11.98 143.7 5 500 2.45 244.6 2.99 299.5
22 264 10.76 129.1 13.18 158.1 5.5 550 2.69 269.0 3.29 329.4
24 288 11.74 140.9 14.37 172.5 6 600 2.93 293.5 3.59 359.4
26 312 12.72 152.6 15.57 186.9 6.5 650 3.18 317.9 3.89 389.3
28 336 13.70 164.3 16.77 201.2 7 700 3.42 342.4 4.19 419.3
30 360 14.67 176.1 17.97 215.6 7.5 750 3.67 366.8 4.49 449.2
32 384 15.65 187.8 19.17 230.0 8 800 3.91 391.3 4.79 479.1

Diagonal measurement

Minimum

zoom

Maximum

zoom

Distance from

screen

Diagonal measurement

Minimum

zoom

Maximum

zoom

10

DLP Personal Projector

RD-JT51 (SVGA) screen size chart (16:9 aspect ratio)

Distance from

screen

feet inches feet inches feet inches meters cm meters cm meters cm

4 48 1.80 21.6 2.20 26.4 1 100 0.45 45.1 0.55 55.0
6 72 2.70 32.4 4.20 50.4 1.5 150 0.68 67.6 0.82 82.5

8 96 3.61 433 5.60 67.2 2 200 0.90 90.1 1.10 110.0
10 120 4.51 54.1 7.00 84.0 2.5 250 1.13 112.7 1.37 137.5
12 144 5.41 64.9 8.40 100.8 3 300 1.35 135.2 1.65 164.9
14 168 6.31 75.7 9.80 117.6 3.5 350 1.58 157.7 1.92 192.4
16 192 7.21 86.5 11.20 134.4 4 400 1.80 180.3 2.20 219.9
18 216 8.11 97.3 12.60 151.2 4.5 450 2.03 202.8 2.47 247.4
20 240 9.01 108.2 14.00 167.9 5 500 2.25 225.3 2.75 274.9
22 264 9.91 119.0 15.39 184.7 5.5 550 2.48 247.9 3.02 302.4
24 288 10.82 129.8 16.79 201.5 6 600 2.70 270.4 3.30 329.9
26 312 11.72 140.6 18.19 218.3 6.5 650 2.93 292.9 3.57 357.4
28 336 12.62 151.4 19.59 235.1 7 700 3.15 315.5 3.85 384.9
30 360 13.52 162.2 20.99 251.9 7.5 750 3.38 338.0 4.12 412.4
32 384 14.42 173.1 22.39 268.7 8 800 3.61 360.5 4.40 439.8

There is 3% ~ 5% tolerance among these numbers due to optical component limits.

* 1m = 3.28 feet, 1 feet = 0.305m, 1m = 100cm, 1 feet = 12 inches

Diagonal measurement

Minimum

zoom

Maximum

zoom

Distance from

screen

Diagonal measurement

Minimum

zoom

Maximum

zoom

DLP Personal Projector

11

Connecting to Various Equipment

HDTV description

The projector is capable of displaying various High Definition TV display
modes. Some of these sources are:

• Digital-VHS (D-VHS) player • DVD player

• Satellite Dish HDTV receiver • DTV tuners

Most of these sources will provide an analog composite video output, a
standard VGA output, or a YPbPr (default) format.

The projector is capable of accepting HDTV data through a YP
connector. Use a HDTV cable (an optional accessory) that came with your
projector to display HDTV images.

The following standards are supported in the HDTV function:

• 480i • 480p

• 576i • 576p

• 720p • 1080i

Please refer to "Menu System" on page 16 for information on the HDTV

bPr) OSD selections.

(YP

Connecting to Various Equipment

It only takes a few seconds to connect your projector to your desktop or
notebook computer, VCR, or other systems. However, a Mac adapter (an
optional accessory) is needed for connection to Macintosh computers.

Notebook/ Computer (Macintosh computer is only supported with D-Sub IN
connector.) / DVD player / S-video device / Video device or VCR

bPr

12

DVD Player

S-Video/ Video

YP

bPr

PC

DLP Personal Projector

S-Video

Video

D-SUB IN

OPERATION

Start Up

1. Plug the power cord into a wall socket.

(110V)

(220V)

2. Turn the Main Power Switch on.

3. Press and hold POWER to start the unit. The Power Indicator flashes
green and stays green when the power is turned on.

Projector

POWER

MENU

/EXIT

KEYSTONE

-

AUTO BLANK

SOURCE

KEYSTONE

+

Remote Control

(When the power is turned off, there is a 90-second cooling period before the
projector can be re-started.)

4. Switch on all connected equipment.

DLP Personal Projector

13

Digital Keystone Correction

Keystoning refers to the
situation where the
projected image is
noticeably wider at either
the top or bottom. To
correct this, press
KEYSTONE

3/ 4 (hot key)

on the remote control, and

POWER

MENU

/EXIT

-

KEYSTONE

AUTO BLANK

KEYSTONE

SOURCE

+

then adjust the sliding bar
labeled Keystone, as
needed. Press

3 to correct

keystoning at the top of the
image. Press

4 to correct

keystoning at the bottom of
the image.

Auto Adjustment

In some cases, you may need to optimize the picture quality. To do this,
press the AUTO key on the control panel of the projector or on the remote
control. The built-in Intelligent Auto Adjustment function will re-adjust
settings to provide the best picture quality.

*This function is available only in Analog RGB mode.

Projector

Remote control

Projector

Remote control

14

POWER

SOURCE

MENU

/EXIT

KEYSTONE

KEYSTONE

AUTO BLANK

+

-

DLP Personal Projector

Source Selection

When several input sources are available, press the SOURCE key to make a
selection from the control panel of the projector or the remote control.

Because Analog RGB and YPbPr inputs share the same terminal in the back of the projector,
there’s only one signal can be applied at one time.

Projector

POWER

MENU

/EXIT

KEYSTONE

-

AUTO BLANK

KEYSTONE

SOURCE

+

Remote control

Blank

Uses BLANK to hide the screen image and press BLANK again or RETURN
to bring the image back.

Projector

POWER

SOURCE

MENU

/EXIT

KEYSTONE

KEYSTONE

AUTO BLANK

+

-

DLP Personal Projector

Remote control

15

Menu System

1. Press MENU / EXIT to display the main menu.

2. Press

3or 4 to select a sub-menu.

3. Press

3, 4, ▲ or ▼ to adjust / select items in the sub-menu.

4. Press MENU / EXIT to return to the previous menu.

Menu Bar

Sub-menu Display Image Source Control PIP

Aspect Ratio

H Position

Analog RGB

Y/Pb/Pr

(480p / 576p /

720p / 1080i)

Y/Pb/Pr

(480i / 576i)

Video

S-Video

Keystone

Brightness

Contrast

Phase
H Size

Keystone

Brightness

Contrast

Keystone

Brightness

Contrast

Color

Tint

V Position

Color Temp

Information

Aspect Ratio

Color

Tint

Color Temp

Aspect Ratio

System

Color Temp

Information

Aspect Ratio

System

Sharpness

Color Temp

Information

Mirror

Source

Source Scan

Blank Time

Auto Off

Language
OSD Pos.

OSD Time

Economic Mode

Reset

Lamp Hour

Main Page:

PIP Source

PIP Size

PIP Pos.
H Position
V Position

More Options

Sub Page:

Brightness

Contrast

Sharpness

System

Color

Tint

16

DLP Personal Projector

1. Display Menu

FUNCTION DESCRIPTION

Corrects any keystoning of the image.

Keystone

+-

Adjusts the brightness of the image.

Brightness

Adjusts the degree of difference between dark and light in the
image.

Contrast

Adjusts to avoid the occurrence of flicker.

Phase

H Size

Color

Tint

This function is not available when the input mode is Video, S-Video

or YPbPr 480i / 576i.

Adjusts to fit in the desired image size.

This function is not available when the input mode is Video, S-Video
or YPbPr 480i / 576i.

Increases or decreases the color range (R, G, B) of the
image.

This function is not available when the input mode is Analog RGB
or YP

bPr.

Adjusts the image to make it appear more red or green.

This function is not available when the input mode is Analog RGB
or YP

bPr and the input system is PAL or SECAM.

DLP Personal Projector

17

2. Image Menu

FUNCTION DESCRIPTION

Makes the best fit of the image to the screen,

Aspect Ratio

H Position

V Position

1. 4 : 3 2. 16 : 9 3. Native

“Native” is available only when the input mode is Analog RGB .

Adjusts the horizontal position of the projected image.

This function is available only when the input mode is Analog RGB.

Adjusts the vertical positon of the projected image.

18

Color Temp

Information

System

Sharpness

Color

Tint

This function is available only when the input mode is Analog RGB.

Adjusts the color temperature to fit your preference.

Shows the current resolution.

System information will be shown:

1.NTSC 2. PAL 3.SECAM

The input System cannot be changed by selection.

Adjusts the image to make it look sharper or softer.

This function is not available when the input mode is Analog RGB or
YPbPr.

Increases or decreases the color range (R, G, B) of the image.

This function is available only when the input mode is YPbPr.

Adjusts the image to make it appear more red or green.

This function is not available when the selected System is PAL.

DLP Personal Projector

3. Source Menu

FUNCTION DESCRIPTION

Mirror

Source

Source Scan

Blank Time

Auto Off

1. Default

2. Ceiling mounted
projection

3. Rear screen projection

4. Ceiling mounted and rear­screen projection

Shows the input source from among analog RGB, YP

bPr, S-

Video and Composite Video when several sources are
available.

The input System cannot be changed by selection.

When selecting ON, the function is activated and the projector
starts to scan in the order of Analog RGB, YPbPr, S-Video and
Video when there is no signal detected. When selecting OFF,
the projector only detects the last input source.

Determines the length of time before the projector is shut off
when Blank is activated.

Sets the length of time before the system is shut off when no
input is detected.

DLP Personal Projector

19

4. Control Menu

FUNCTION DESCRIPTION

Language sets the language for the OSD control menus.

Language

OSD Pos.

OSD Time

Economic

Mode

Reset

Use the 3 / 4 key to select the desired language from among
English, French, German, Italian, Spanish, Korean, Traditional
Chinese and Simplified Chinese.

Selects a desired OSD position.

Sets the length of time the OSD will remain active after the last
time you pressed the button. The range is from 5 to 60
seconds in 5-second increments.

Selects Economic mode to lower brightness and extend the
lamp life.

Returns all settings to their factory preset values.

Lamp Hour

Shows lamp usage time.

20

DLP Personal Projector

5. PIP Menu

These functions are available only when the input mode is Analog RGB and
the PIP source is Video or S-Video.

FUNCTION DESCRIPTION

PIP Source

PIP Size

PIP Position

H Position

V Position

More Options

Brightness

Contrast

Color

Tint

Sharpness

System

Selects the source for the PIP.

Enables use of the 3 / 4 key to scroll through the four
alternatives: Off, Small, Medium, Large.

Selects a desired position for the PIP.

Adjusts the horizontal position of the PIP image.

Adjusts the vertical position of the PIP image.

Enables use of the 3 / 4 key to select more PIP functions
including Brightness, Contrast, Color, Tint, Sharpness and
System.

Adjusts the brightness of the PIP image.

Adjusts the degree of difference between dark and light for the
PIP image.

Increases or decreases the color range (R, G, B) of the image.

Adjusts the image to make it appear more red or green.

Adjusts the image to make it appear sharper or softer.

Shows PIP image systems: NTSC, PAL and SECAM.

The input System cannot be changed by selection.

DLP Personal Projector

21

Shutdown

1. Press and hold POWER and a warning message will appear. To turn off
the projector, press and hold POWER again.

POWER

SOURCE

MENU

/EXIT

KEYSTONE

+

KEYSTONE

-

AUTO BLANK

2. The fan will continue to run for approximately 90 seconds.

3. Turn off the main power switch.

22

* After the projector is turned off, there is a 90-second cooling period before the

projector can be re-started.

4. Disconnect the power cord from the wall socket.

(110V)

(220V)

Caution

• Please do not unplug the power cord before POWER is shut down

or during the 90-second cooling process.

• If the projector is not properly shut down, to protect the lamp, the

system will detect this and cool the lamp for 90 seconds automati­cally before turning on again.

DLP Personal Projector

MAINTENANCE

Lamp Information

Use and Replacement of the Lamp

The lamp life is 2000 hours. When the Lamp Indicator lights up orange
suggesting the time of lamp replacement, please install a new lamp or
consult your dealer. An old lamp could cause a malfunction in the projector
and in rare instances may even explode.

Lamp Replacement

Please check with LG service center for the information of lamp replacement.

Caution

HIGH VOLTAGE/ HIGH TEMPERATURE/ HIGH PRESS

WHEN REPLACING THE LAMP, TURN OFF THE PROJECTOR AND
PULL OUT THE CORD FROM THE RECEPTACLE BEFORE REPLACING
THE LAMP.

WAIT UNTIL THE LAMP BECOMES COOL (MINIMUM 45 MINUTES).
TOUCHING THE LAMP WHEN IT IS HOT MAY CAUSE A BURN ON YOUR

HAND.
A HIGH-PRESSURE LAMP WHICH WHEN HOT, MAY EXPLODE IF

IMPROPERLY HANDLED.

To reduce the risk of injuries to fingers and damage to internal compo­nents, use caution when removing lamp glass that has shattered into
sharp pieces.

To reduce the risk of injuries to fingers and/or compromising image
quality by touching the lens, do not touch the empty lamp compartment
when the lamp is removed.

This lamp contains mercury. Consult your local hazardous waste regu­lations to dispose of this lamp in a proper manner.

DLP Personal Projector

23

Operative Information

When the three LEDs light up, they indicate the power, lamp or internal
temperature status or possible problems:

LED Indicator LEDs Display Description

Orange

Blinking Green

Power Indicator

Green The projector is working,
Blinking
Orange

- Off (The AC power switch is off.)

Orange

Lamp Indicator

Red

Blinking Red

Red

Temperature
Indicator

Blinking Red

Standby (The AC power switch is on,
and the projector is off.)
When the power button is pressed, the
indicator blinks green until the LG logo
shows up.

POWER-DOWN. It will cools down for
90 seconds after the power is turned off.

The lamp has been in operation for over
1900 hours. The OSD message
“CHANGE LAMP, AND RESET LAMP
TIMER.” will be displayed on the screen
for 30 seconds.
The lamp has been in operation for over
2000 hours. The OSD message “OUT
OF LAMP USAGE TIME. CHANGE THE
LAMP!” will be displayed on the screen
for 30 seconds.
Something is wrong with the lamp power
supply. Please turn off the projector
within 3 seconds.
The internal temperature of the projector
is too hot.
When the temperature inside the
projector is too high, the OSD message
“Temperature is too high. Going to shut
down.” will be displayed on the screen
for 10 seconds and then the projector
will automatically shutdown. The fans
will be continuing to run for 90 seconds,
then you can restart the projector.
Something is wrong with the fans. The
OSD message “Fan or Diode error.
Going to shut down.” will be displayed
on the screen for 10 seconds, and then
the projector will automatically
shutdown. Please turn the projector off.

24

DLP Personal Projector

TROUBLESHOOTING

Common Problems & Solutions

NO POWER

Try these solutions:

• Make sure the power cord is inserted snuged into the AC adapter socket.

• Make sure the power cord is inserted snuged into the power outlet.

• Toggle the power switch to the position “ I ”.

• Wait 90 seconds after the projector is turned off before turning the projector
back on.

NO PICTURE

Try these solutions:

• Check for the proper input source.

• Ensure all cables are connected properly.

• Adjust the brightness and contrast.

• Remove the lens cap.

TRAPEZOID IMAGE ON THE SCREEN

Try these solutions:

• Reposition the unit to improve its angle on the screen.

•Use the KEYSTONE correction key on the control panel of the projector or
the remote control unit.

POOR COLOR

Try these solutions:

• Select the correct video system.

• Adjust brightness, contrast, or color.

BLURRED IMAGE

Try these solutions:

• Press AUTO on the control panel of the projector or the remote control unit
to get better picture quality.

• Adjust the focus.

• Reposition the unit to improve its projection angle.

• Ensure the distance between the unit and screen is within the adjustment
range of the lens.

DLP Personal Projector

25

REMOTE CONTROL DOES NOT WORK

Try these solutions:

• Replace the batteries with new ones.

• Make sure there is no obstacle between the remote control and the
projector.

• Stand within 6 meters (19.5 feet) of the projector.

• Make sure nothing is blocking the front and rear receivers.

Status Messages

On-Screen Messages Description

SEARCHING

ACQUIRING SIGNAL

OUT OF RANGE

LAMP WARNING -

CHANGE LAMP AND

RESET LAMP TIMER!

OUT OF LAMP USAGE

TIME. CHANGE THE

LAMP!

Projector is searching for input.

Projector has identified the input signal and is
running the auto image adjustment function.

Input signal frequency exceeds the projector’s
range.

The lamp has been in operation for 1900
hours. Install a new lamp for optimal
performance.

The lamp has been in operation for over 2000
hours. The warning message will display for
30 seconds.

26

DLP Personal Projector

SPECIFICATIONS

Projector Specifications

Note: All specifications are subject to change without notice.

General

Product name Personal Projector
Model name RD-JT51 800X600 SVGA

Optical

Display system 1-CHIP DMD
Lens F/Number F/2.6
Lamp 200W NSH lamp

Electrical

Power supply AC100 ~ 240V, 3.2A, 50/60 Hz (Automatic)
Power consumption 285W (Max)

Mechanical

Dimensions 302.3 mm (W) x 91.7 mm (H) x 216.3 mm (D)
Operating temperature
range
Weight 6.6 lbs (3.0 Kg)

Input terminal

Computer input
D-SUB IN D-sub 15-pin (female)
Video signal input
S-VIDEO Mini DIN 4-pin port x1
VIDEO RCA jack x1

HDTV signal input

0°C ~ 40°C

D-sub <--> YP
terminal

bPr RCA jack x3, through D-SUB IN

DLP Personal Projector

27

Timing Chart

Suppoted timing for Analog RGB input

Horizontal

Resolution

Frequency

(kHz)

720x400 37.927 85.039 35.500 720x400_85

31.469 59.940 25.175 VGA_60

640x480

800x600

832x624 49.725 74.550 57.283 MAC16”

1024x768

1152x864 67.500 75.000 108.000 SXGA1_75

1280x960 60.000 60.000 108.000 QuadVGA_60

1280x1024 63.981 60.020 108.000 SXGA3_60

37.861 72.809 31.500 VGA_72

37.500 75.000 31.500 VGA_75

43.269 85.008 36.000 VGA_85

35.156 56.250 36.000 SVGA_56

37.879 60.317 40.000 SVGA_60

48.077 72.188 50.000 SVGA_72

46.875 75.000 49.500 SVGA_75

53.674 85.061 56.250 SVGA_85

35.522 86.957 44.900 XGA_43i

48.363 60.004 65.000 XGA_60

56.476 70.069 75.000 XGA_70

60.023 75.029 78.750 XGA_75

68.667 84.997 94.500 XGA_85

60.134 74.700 79.857 MAC19”

Supported timing for YP

Vertical

Frequency

(Hz)

bPr input

Pixel

Frequency

(MHz)

Mode

Signal Format

480i(525i)@60Hz 15.73 59.94

480p(525p)@60Hz 31.47 59.94

576i(625i)@50Hz 15.63 50.00

576p(625p)@50Hz 31.25 50.00

720p(750p)@60Hz 45.00 60.00

720p(750p)@50Hz 37.50 50.00

1080i(1125i)@60Hz 33.75 60.00

1080i(1125i)@50Hz 28.13 50.00

28

Horizontal Frequency

(kHz)

DLP Personal Projector

Vertical Frequency

(Hz)

Supported timing for Video and S-Video inputs

Video mode

NTSC 15.73 60 3.58

PAL 15.63 50 4.43

SECAM 15.63 50 4.25 or 4.41

PAL-M 15.73 60 3.58

PAL-N 15.63 50 3.58

PAL-60 15.73 60 4.43

NTSC4.43 15.73 60 4.43

Horizontal

Frequency (kHz)

Vertical

Frequency (Hz)

Pixel Frequency

(MHz)

DLP Personal Projector

29

DIMENSIONS

AA

91.7mm

302.3mm

POWER

MENU

/EXIT

-

KEYSTONE

AUTO BLANK

SOURCE

KEYSTONE

+

216.3mm

A

Unit: mm

30

DLP Personal Projector