Runco CL-420 Owners manual
OWNER’S OPERATING MANUAL
CL-420
DLP™ Projector
TWO YEAR LIMITED WARRANTY
For Projectors, Video Processors and Controllers
Congratulations on your purchase of a Runco video product and welcome to the Runco family! We believe Runco produces
“The World’s Finest Home Theater Products.” With proper installation, setup and care, you should enjoy many years of
unparalleled video performance.
This is a LIMITED WARRANTY as defined in the Magnuson-Moss Warranty Act. Please read it carefully and retain it with your
other important documents.
WHAT IS COVERED UNDER THE TERMS OF THIS LIMITED WARRANTY:
SERVICE LABOR: Runco will pay for service labor by Runco Authorized Service Center when needed as a result of
manufacturing defect for a period of two (2) years from the effective date of delivery to the end user (excluding the lamp).
PARTS: (Not including the lamp) Runco will provide new or rebuilt replacement parts for the parts that fail due to defects in
materials or workmanship for a period of two (2) years from the effective date of delivery to the end user. Such replacement
parts are then subsequently warranted for the remaining portion (if any) of the original warranty period.
PROJECTOR LAMP: Runco will pay for service labor by a Runco Authorized Service Center when needed as a result of a
manufacturing defect for a period of six (6) months or 1000 hours, which ever comes first, from the effective date of delivery to
the end user. In addition, Runco will provide a new or rebuilt replacement lamp for the lamp that fails due to defects in materials
or workmanship for a period of six (6) months or 1000 hours, which ever comes first, from the effective date of delivery to the
end user. Such replacement lamps are then subsequently warranted for the remaining portion (if any) of the original warranty
period.
WHAT IS NOT COVERED UNDER THE TERMS OF THIS LIMITED WARRANTY:
This Limited Warranty only covers failure due to defects in materials and workmanship that occur during normal use and does
not cover normal maintenance. This Limited Warranty does not cover cabinets or any appearance items; failure resulting from
accident, misuse, abuse, neglect, mishandling, misapplication, faulty or improper installation or setup adjustments; improper
maintenance, alteration, improper use of any input signal; damage due to lightning or power line surges, spikes and
brownouts; damage that occurs during shipping or transit; or damage that is attributed to acts of God. In the case of remote
control units, damage resulting from leaking, old, damaged or improper batteries is also excluded from coverage under this
Limited Warranty.
CAUTION: THIS LIMITED WARRANTY ONLY COVERS RUNCO PRODUCTS PURCHASED FROM RUNCO AUTHORIZED
DEALERS. ALL OTHER PRODUCTS ARE SPECIFICALLY EXCLUDED FROM COVERAGE UNDER THIS LIMITED
WARRANTY. MOREOVER, DAMAGE RESULTING DIRECTLY OR INDIRECTLY FROM IMPROPER INSTALLATION OR SETUP
IS SPECIFICALLY EXCLUDED FROM COVERAGE UNDER THIS LIMITED WARRANTY.
RIGHTS, LIMITS AND EXCLUSIONS:
Runco limits its obligations under any implied warranties under state laws to a period not to exceed the warranty period. There
are no express warranties. Runco also excludes any obligation on its part for incidental or consequential damages related to
the failure of this product to function properly. Some states do not allow limitations on how long an implied warranty lasts, and
some states do not allow the exclusion or limitation of incidental or consequential damages. So the above limitations or
exclusions 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.
Runco CL-420 Owner’s Operating Manual iii
EFFECTIVE WARRANTY DATE:
This warranty begins on the effective date of delivery to the end user. For your convenience, keep the original bill of sale as
evidence of the purchase date.
IMPORTANT -- WARRANTY REGISTRATION:
Please fill out and mail your warranty registration card. It is imperative that Runco knows how to reach you promptly if we
should discover a safety problem or product update for which you must be notified.
CONTACT A RUNCO AUTHORIZED SERVICE CENTER TO OBTAIN SERVICE:
Repairs made under the terms of this Limited Warranty covering your Runco video product will be performed at the location of
the product, during usual working hours, providing location of product is within normal operating distance from a Runco
Authorized Service Center. In some instances it may be necessary for the product to be returned to the Runco factory for
repairs. If, solely in Runco’s judgment, location of product to be repaired is beyond normal operating distance of the closest
Runco Authorized Service Center, or the repair requires the unit be returned to the Runco factory, it is the owner’s
responsibility to arrange for shipment of the product for repair. These arrangements must be made through the selling Runco
Dealer. If this is not possible, contact Runco directly for a Return Authorization number and shipping instructions. Runco will
return product transportation prepaid in the United States, unless no product defect is discovered. In that instance, shipping
costs will be the responsibility of the owner.
COPYRIGHT AND TRADEMARKS:
© Copyright 2006 Runco International. This document contains proprietary information protected by copyright. All rights are
reserved. No part of this manual may be reproduced by any mechanical, electronic or other means, in any form, without prior
written permission of the manufacturer.
All trademarks and registered trademarks are the property of their respective owners.
iv Runco CL-420 Owner’s Operating Manual
ADDITIONAL INFORMATION:
To locate the name and address of the nearest Runco Authorized Service Center, or for additional information about this
Limited Warranty, please call or write:
RUNCO INTERNATIONAL, INC.
Attn: Customer Service Department
2900 Faber Street
Union City, CA 94587
Ph: (510) 324-7777
Fax: (510) 324-9300
Toll Free: (800) 23-RUNCO
RUNCO VIDEO-PRODUCT INFORMATION
RETAIN THIS INFORMATION FOR YOUR RECORDS
_________________________________________________________ ________________________________________
Model Purchased Date
____________________________________________________________________________________________________________
Serial Number
____________________________________________________________________________________________________________
Runco Authorized Dealer Name
____________________________________________________________________________________________________________
Address
____________________________________________ __________________ ________________________
City State/Province Postal Code
____________________________________________ _______________________________________________________
Phone Fax
Runco CL-420 Owner’s Operating Manual v
Safety Precautions
Thank you for your purchase of this quality Runco video projector! It has been designed to provide you with the quality of video
that is expected in a home theater. For the best performance, please read this manual carefully as it is your guide through the
menus and operation.
WARNING
CAUTION
RISK OFELECTRIC SHOCK
DO NOTOPEN
TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
CAUTION:
SERVICE PERSONNEL.
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.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
This symbol is intended to alert the user to the presence of
uninsulated “dangerous voltage” within the product’s enclosure
that may be of sufficient magnitude to constitute a risk of electric
shock.
This symbol is intended to alert the user to the presence of
important operating and maintenance (servicing) instructions in the
literature accompanying the appliance.
4. Do not use this equipment near water, outdoors or otherwise exposed to the elements.
5. Clean only with a dry cloth.
6. Do not block any ventilation openings.
7. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that
produce heat.
8. Do not defeat the safety feature of the polarized or grounding type plug. A polarized type plug has two blades with one
wider than the other. A grounding type plug has two blades and a third grounding prong. The third prong is provided for
your safety. If the provided plug does not fit into your outlet, consult an electrician for the replacement of the obsolete
outlet.
9. The 12V trigger only outputs DC 12V signal for triggering. Do not connect to any other power input or output. This could
cause damage to this unit.
10. Only use accessories specified by Runco International.
11. Keep the packing material in case the equipment should ever need to be shipped.
12. Unplug this projector during lightning storms or when it will not be used for an extended period of time.
13. The lamp becomes extremely hot during operation. Allow the projector to cool down 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 rated life could cause them to explode in rare occasions.
14. Refer all servicing to qualified service personnel. Servicing is required when the projector has been damaged in any way,
objects have fallen or spilled into the projector, the projector has been exposed to rain or moisture, does not operate
normally, or has been dropped.
vi Runco CL-420 Owner’s Operating Manual
1Table of Contents
TWO YEAR LIMITED WARRANTY ................................................................................. iii
Safety Precautions ......................................................................................................... vi
1. Introduction ...............................................................................................................1
About This Manual .......................................................................................................1
Target Audience .....................................................................................................1
If You Have Comments About This Manual.............................................................1
Textual and Graphic Conventions ...........................................................................1
Using This Manual ........................................................................................................2
Description, Features and Benefits ...............................................................................3
Key Features and Benefits ......................................................................................3
Parts List ...............................................................................................................4
2. Controls and Functions ............................................................................................ 5
CL-420 at a Glance ......................................................................................................5
Front/Top/Side View ...............................................................................................5
Rear/Top/Side View ...............................................................................................6
CL-420 Remote Control ...............................................................................................8
3. Installation ...............................................................................................................11
Remote Control ..........................................................................................................11
Notes on Batteries ................................................................................................ 11
Notes on Remote Control Operation .....................................................................12
Quick Setup ...............................................................................................................13
Installation Considerations ..........................................................................................14
Installation Type ................................................................................................... 14
Ambient Light ......................................................................................................14
Other Considerations ........................................................................................... 14
Throw Distance.....................................................................................................15
Vertical and Horizontal Position............................................................................. 16
Vertical and Horizontal Lens Shift..........................................................................16
Adjusting the Projection Angle ..............................................................................18
Mounting ..............................................................................................................19
Folded Optics .......................................................................................................19
Runco CL-420 Owner’s Operating Manual vii
Table of Contents
Connections to the CL-420 ........................................................................................20
Connector Panel Access.......................................................................................20
Connecting the CL-420 to Source Components ................................................... 20
RS-232 Controller Connection ..............................................................................25
Connecting to the 12-Volt Trigger Output .............................................................25
4. Operation .................................................................................................................27
Turning on the Power ................................................................................................. 27
Adjusting the Projector Height or Projection Angle ......................................................27
Changing the OSD Language ..................................................................................... 28
Adjusting the Picture Orientation ................................................................................28
Lens Adjustments ...................................................................................................... 29
Focus/Zoom .........................................................................................................29
Shift .....................................................................................................................30
Using the On-Screen Menus ......................................................................................30
Main Menu ...........................................................................................................32
Source Select ......................................................................................................32
Aspect Ratio ........................................................................................................32
Picture Adjust ...................................................................................................... 34
Image Option .......................................................................................................40
Installation ............................................................................................................42
ISF Setting ...........................................................................................................44
5. Maintenance and Troubleshooting ........................................................................ 47
Cleaning the Projector ................................................................................................47
Cleaning the Lens ......................................................................................................47
Cleaning the Intake and Exhaust Vents .......................................................................48
Lamp Maintenance .....................................................................................................48
Lamp Cautions ...........................................................................................................49
Lamp Replacement ....................................................................................................50
Troubleshooting Tips ..................................................................................................51
6. Serial Communications ..........................................................................................53
RS-232 Connection and Port Configuration ...............................................................53
Serial Command Syntax .............................................................................................53
7. Specifications ..........................................................................................................55
CL-420 Specifications ................................................................................................55
CL-420 Dimensions ...................................................................................................57
Computer Signal Compatibility ...................................................................................58
Video Signal Compatibility ..........................................................................................60
viii Runco CL-420 Owner’s Operating Manual
1List of Figures
2-1. CL-420 Top/Front/Side View ........................................................................................5
2-2. CL-420 Rear/Top/Side View......................................................................................... 6
2-3. CL-420 Remote Control ...............................................................................................8
3-1. Available Range of the Remote Control ......................................................................12
3-2. Estimating Throw Distance .........................................................................................15
3-3. Projector Placement ...................................................................................................16
3-4. Vertical Lens Shift.......................................................................................................17
3-5. Horizontal Lens Shift...................................................................................................18
3-6. Folded Optics.............................................................................................................19
3-7. DVI Source Connections ............................................................................................ 21
3-8. HDMI Source Connections .........................................................................................22
3-9. Analog RGB Connections...........................................................................................23
3-10. Component Video Connections................................................................................24
3-11. Composite and S-Video Connections....................................................................... 24
3-12. RS-232 Control System Connection.........................................................................25
3-13. Connecting the 12-Volt Trigger Output .....................................................................25
4-1. Adjusting the Feet ......................................................................................................27
4-2. Focus and Zoom Controls .......................................................................................... 29
4-3. Vertical and Horizontal Lens Shift Controls .................................................................30
4-4. CL-420 OSD Menu Structure ..................................................................................... 31
4-5. Typical PLUGE Pattern for Adjusting Brightness .........................................................35
4-6. Typical Gray Bar Pattern for Adjusting Contrast .......................................................... 36
4-7. Typical Color Bar Pattern for Adjusting Color Saturation and Tint................................36
4-8. Typical Test Pattern for Adjusting Sharpness..............................................................38
4-9. CIE 1931 Chromaticity Diagram .................................................................................39
4-10. Horizonal and Vertical Keystone Correction ..............................................................43
4-11. ISF-Enabled CL-420 Splash Screen .........................................................................45
7-1. CL-420 Dimensions.................................................................................................... 57
Runco CL-420 Owner’s Operating Manual ix
List of Figures
x Runco CL-420 Owner’s Operating Manual
1. Introduction
This Owner’s Manual describes how to install, set up and operate the Runco Reflection
CL-420 DLP Projector. Throughout this manual, the Runco Reflection CL-420 DLP
Projector is referred to simply as the “CL-420.”
most out of the CL-420.
Runco has made every effort to ensure that this manual is accurate as of the date it was
printed. However, because of ongoing product improvements and customer feedback, it
may require updating from time to time. You can always find the latest version of this and
other Runco product manuals on-line, at www.runco.com.
Runco welcomes your comments about this manual. Send them to techpub@runco.com.
Text Conventions: The following conventions are used in this manual, in order to clarify
the information and instructions provided:
• Remote control button identifiers are set in upper-case bold type; for example, “Press
EXIT to return to the previous menu.”
• All keys with functional names are initial-capped, set in bold type and enclosed in angle
brackets. These keys are the following: <Enter>, <Spacebar>, <Control>, <Esc>
and <Tab>.
• <Enter> indicates that you may press either the RETURN or ENTER key on your
computer keyboard if it has both keys.
• Computer input (commands you type) and output (responses that appear on-screen) is
shown in monospace (fixed-width) type; for example: “To change the aspect ratio to
Letterbox, type RRD02.”
1.1 About This Manual
Target AudienceRunco has prepared this manual to help home theater installers and end users get the
If You Have Comments About This Manual...
Textual and Graphic Conventions
In addition to these conventions, underlining, boldface and/or italics are occasionally used
to highlight important information, as in this example:
A carriage return must be used after each command or string.
Note
Runco CL-420 Owner’s Operating Manual 1
Introduction
Graphic Conventions: These symbols appear in numerous places throughout the
manual, to emphasize points that you must keep in mind to avoid problems with your
equipment or injury:
1.2
Using This Manual
Tip
certain features.
NOTES emphasize text with unusual importance or special
TIPS highlight time-saving short cuts and helpful guidelines for using
Note
significance. They also provide supplemental information.
CAUTIONS alert users that a given action or omitted action can
Caution
degrade performance or cause a malfunction.
WARNINGS appear when a given action or omitted action can result
WARNING
in damage to the equipment, or possible non-fatal injury to the user.
DANGER appears when a given action can cause severe injury or
DANGER!
death.
Use the following table to locate the specific information you need in this manual.
If you need... ... Turn to page:
Information about obtaining service iv
General information about the Reflection CL-420
DLP Projector
Installation instructions 11
First-time configuration instructions 28
Advanced configuration instructions 44
Troubleshooting tips 51
Reflection CL-420 DLP Projector specifications 55
3
2 Runco CL-420 Owner’s Operating Manual
Introduction
The Runco Reflection CL-420 DLP Projector combines a highly efficient optical light
engine with broad installation and integration options.
Runco has implemented a host of advancements into the projector’s light engine to take
full advantage of its widescreen, high-definition SuperOnyx™ Digital Micromirror Device
(DMD™) chip. The CL-420 features Enhanced GEN 3™ technology to produce deeper
blacks, greater contrast ratio and brightness, and richly saturated colors.
Among the CL-420’s features are a sophisticated color-balancing system that results in
the industry’s best gray scale tracking, and far surpasses the capabilities of CRT
projectors. Accurate gray scale reproduction is vital to vibrant, true-to-life color
reproduction, as well as superior black level and white level performance. Runco’s
acclaimed Vivix™ video processing and scaling assure pristine video imagery, while the
CL-420’s generous light output capability is powerful enough to handle screens as large
as 96 inches wide with ease.
The CL-420 features a 16:9 aspect ratio resolution of 1280 x 720, and provides a DVI
input for pure digital video signal transmission. In addition, the projector’s broad lens shift
capability, variable throw distance, and electronic horizontal and vertical keystone
correction allow for flexible placement within virtually any theater environment. Discrete IR
and/or serial control makes it simple to partner the CL-420 with other audio/video
components and automated control systems for a truly high-end, home cinema system.
• Native Resolution: 1280 x 720 (16:9 Native Aspect Ratio)
• High-performance Digital Light Processing (DLP™) engine
• DVI Input with High-bandwidth Digital Content Protection (HDCP)
• HDTV Compatible
1.3 Description, Features and Benefits
Key Features and BenefitsThe CL-420 offers these key features and benefits:
Runco CL-420 Owner’s Operating Manual 3
Introduction
Parts List Your CL-420 is shipped with the following items. If any items are missing or damaged,
➤
please contact your Runco dealer or Runco Customer Service at (800) 23-RUNCO.
• Reflection CL-420 DLP Projector
• Remote Control Unit and two (2), AAA-size batteries
• HD 15-pin VGA to HD 15-pin VGA cable
• DVI-D to DVI-D cable
• AC Power Cord
• Warranty information and registration card
• Runco CL-420 Owner’s Operating Manual (this document)
Optional Accessories:
• Ceiling mount kit
4 Runco CL-420 Owner’s Operating Manual
2. Controls and Functions
Figure 2-1 and Figure 2-2 show the locations of key CL-420 projector components.
12
11
10
9
2.1 CL-420 at a Glance
Front/Top/Side View
786 3
Figure 2-1. CL-420 Top/Front/Side View
1. TOP IR SENSOR
2. VERTICAL LENS SHIFT DIAL
Shifts the image up or down.
3. INTAKE VENT
4. ADJUSTABLE FEET
Use to adjust the height or projection angle.
5. RUNCO LOGO
The logo can be rotated to match the projector orientation: inverted (ceiling-mounted)
or upright. To rotate the logo, grip it at the sides, pull it away from the projector and
rotate it 180 degrees.
6. FRONT IR SENSOR
Runco CL-420 Owner’s Operating Manual 5
5
4
Controls and Functions
7. FOCUS/ZOOM RING
8. EXHAUST VENT
9. HORIZONTAL LENS SHIFT DIAL
10. TEMPERATURE INDICATOR
Flashes blue when the projector is overheated.
11. POWER INDICATOR
Lights solid blue when the projector is in standby mode; flashes blue during
cool-down. During normal operation, this LED is off.
Rear/Top/Side View
➤
2
3
45
1
S-VIDEOVIDEO P
S-VIDEO VIDEOP
COMP 1 COMP 2
R
/
CRP
B
/
CBYP
R
/
CRP
B
/
CBYP
COMP 1
RS-232
R
/
CRP
R
/
CRP
B
/
CBY
B
/
CBY
COMP 2
RGB-HD DVI
RGB-HD
DVI
8
RS-232
AC 110-240
7
AC 110-240
6
R
S-23
2
2
-23
S
R
A
C
11
0-240
0
4
-2
0
1
1
C
A
Figure 2-2. CL-420 Rear/Top/Side View
6 Runco CL-420 Owner’s Operating Manual
10
9
1. COMPOSITE VIDEO INPUT
Standard composite video input for connecting a VCR, camcorder, laser disc player
or other composite video source.
2. S-VIDEO
Standard S-Video input for connecting a DVD player, satellite receiver or Super VHS
(S-VHS) VCR.
3. COMPONENT VIDEO (RCA connectors)
Standard-definition (480i/576i) or high-definition (720p/1080i), YPrPb component
input. This is the input for component video from sources such as DVD players.
Controls and Functions
Tip
For best results, do not run your DVD player in progressive mode.
4. RGB HD
A 15-pin VGA connection to a personal computer. The CL-420 automatically detects
the signal resolution: 480i, 480p, 576i, 720p or 1080i.
5. DVI / Computer Input (Digital)
HDCP-compliant digital video input for connecting a DVD player, personal computer
or HD tuner with a DVI or HDMI output.
6. POWER INPUT (100 to 240 VAC)
Connect the CL-420 to power here.
7. RS-232 CONTROL PORT
A female, 9-pin D-sub connector for interfacing with a PC or home theater
automation/control system.
8. 12-VOLT TRIGGER (3.5-mm mini phono jack)
For connecting to retractable screens or other devices that respond to 12-volt
triggers. Outputs +12 volts / 250 milliamps when the projector is turned on.
9. LAMP COVER
10. EXHAUST VENT
Runco CL-420 Owner’s Operating Manual 7
Controls and Functions
2.2
CL-420 Remote Control
Figure 2-3 shows the CL-420 remote control, and the paragraphs that follow describe its
functionality.
1
2
4
3
5
6
8
9
7
10
11
12
Figure 2-3. CL-420 Remote Control
1. IR OUTPUT INDICATOR
Lights when a button is pressed to indicate that an IR signal is being transmitted.
2. ON / OFF
Press to turn the projector on or off.
3. Cursor Keys ( , , , )
Use these buttons to select items or settings, adjust settings or switch display
patterns.
4. ENTER
Press to select a highlighted menu item or confirm a changed setting.
5. EXIT
Press this button to exit the current menu and return to the previous one.
8 Runco CL-420 Owner’s Operating Manual
6. LIGHT
Press this button to illuminate the buttons.
7. MENU
Press this button to access the on-screen display (OSD) controls.
8. Source Selection Buttons:
VIDEO
Press to switch to the Composite video input.
COMP 1 (Component 1)
Press to switch to the Component 1 (480i/576i/720p/1080i) video input.
RGB HD
Press to switch to the RGB HD input.
S-VID 1 (S-Video)
Press to switch to the S-Video input.
COMP 2 (Component 2)
Press to switch to the Component 2 (480i/576i/720p/1080i) video input.
DVI
Press to switch to the Digital Video input.
9. Aspect Ratio Selection Buttons:
ANA (Anamorphic)
For viewing 16:9 DVDs or HDTV programs in their native aspect ratio.
4X3 (Standard 4:3)
Scales the input signal to fit 4:3 display mode in the center of the screen.
LETBOX (Letterbox)
For viewing LaserDisc movies or non-anamorphic DVDs on a 4:3 screen.
V-WIDE (VirtualWide)
Enlarges a 4:3 image horizontally in a NON-linear fashion to fit 16:9 full screen display.
CINEMA
For viewing 2.35:1 source material on a 1.78:1 (16:9) screen. The upper and lower
portions are masked.
V-CINE (Virtual Cinema)
A 2.35 image is stretched vertically in both directions to fill a 16:9 image.
Controls and Functions
Memory Preset Buttons:
10. ISF NIGHT
Press to recall settings for the current input from the “ISF Night” memory preset.
11. ISF DAY
Press to recall settings for the current input from the “ISF Day” memory preset.
12. CUST
Press to recall settings for the current input from the “Custom” memory preset.
Runco CL-420 Owner’s Operating Manual 9
Controls and Functions
Notes:
10 Runco CL-420 Owner’s Operating Manual
3. Installation
To install batteries in the remote control:
1. Press down the tab on the cover and pull
the cover in the direction of the arrow.
2. Insert the included batteries. Ensure that
the polarities correctly match the
markings inside the battery
compartment.
3. Insert the lower tab of the cover into the
opening, and press down the cover until it
clicks in place.
• Do not mix an old battery with a new one or different types of batteries.
• If you will not use the remote control for a long time, remove the batteries to avoid
damage from battery leakage.
and
3.1 Remote Control
Notes on Batteries• When installing batteries, make sure that the battery polarities are correct.
Runco CL-420 Owner’s Operating Manual 11
Installation
Notes on Remote Control
Operation
The remote control can be used to control the projector within the ranges shown in Figure
➤
3-1.
Figure 3-1. Available Range of the Remote Control
The signal from the remote control can be reflected by the screen.
Note
• For best results, hold the remote control within 23 feet (7m) of the back or top sensor
and aligned within 30°.
• Do not drop the remote control or expose it to moisture or high temperature.
• The remote control may malfunction under a fluorescent lamp. If that occurs, move the
projector away from the fluorescent lamp.
• Make sure that there is nothing obstructing the infrared beam between the remote
control and the IR receiver on the projector.
• If the effective range of the remote control decreases, or it stops working, replace the
batteries with new ones.
• Ambient conditions may possibly impede the operation of the remote control. If this
happens, point the remote control at the projector, and repeat the operation.
12 Runco CL-420 Owner’s Operating Manual
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