Scientific Atlanta Explorer 8240HD Mounting instructions

Connecting the
Explorer®8240HDTM
Digital Video
Recorder

Notice for CATV Installers
CATV Installers Notice
If you are a CATV installer, read the information in the box below.
U.S. Patents
U.S. Patents List
Apatent notice is affixed to this product. In addition, the product may also be covered by one or more of the following patents:
4,636,852;4,641,181; 4,651,208; 4,691,353; 4,698,598;4,719,642; 4,748,667; 4,829,569; 4,866,770;4,885,775; 4,888,799;
4,890,319;4,922,532; 4,965,534; 5,012,510; 5,029,207;5,045,816; 5,053,883; 5,058,160; 5,142,690;5,146,526; 5,214,390;
5,225,902;5,225,925; 5,237,610; 5,239,540; 5,241,610;5,255,086; 5,257,403; 5,267,071; 5,270,809;5,271,041; 5,272,752;
5,282,028;5,285,497; 5,287,351; 5,309,514; 5,319,709;5,341,425; 5,347,388; 5,347,389; 5,361,156;5,367,571; 5,379,141;
5,379,145;5,381,481; 5,390,337; 5,400,401; 5,406,558;5,418,782; 5,428,404; 5,430,568; 5,434,610;5,436,749; 5,442,472;
5,455,570;5,471,492; 5,477,199; 5,477,370; 5,481,389;5,485,221; 5,493,339; 5,500,758; 5,502,499;5,506,904; 5,519,780;
5,550,825;5,579,055; 5,579,057; 5,583,562; 5,596,606;5,600,378; 5,602,933; 5,640,388; 5,657,414;5,675,575; 5,715,515;
5,724,525;5,740,300; 5,742,677; 5,754,940; 5,757,416;5,771,064; 5,774,859; 5,825,829; 5,826,167;5,850,305; 5,854,703;
5,870,474;5,892,607; 5,920,626; 5,923,755; 5,930,024;5,930,515; 5,937,067; 5,963,352; 5,966,163;5,982,424; 5,991,139;
5,999,207;6,005,631; 6,005,938; 6,016,163; 6,028,941;6,029,046; 6,052,384; 6,055,244; 6,072,532;6,105,134; 6,148,039;
6,157,719;6,188,729; 6,195,389; 6,212,278; 6,215,530;6,219,358; 6,240,103; 6,243,145; 6,246,767;6,252,964; 6,272,226;
6,292,081;6,292,568; 6,320,131; 6,374,275; 6,405,239;6,411,602; 6,417,949; 6,424,714;6,424,717; 6,433,906; 6,438,139;
6,463,586;6,467,091; 6,476,878; 6,493,876; 6,510,519;6,516,002; 6,516,412; 6,526,508; 6,538,595;6,546,013; 6,560,340;
6,567,118; 6,570,888; 6,622,308; 6,629,227;6,664,984; 6,667,994; 6,671,879; 6,674,967;6,678,891; 6,714,598; 6,721,352;
6,721,956;6,725,459; 6,738,982; 6,744,892; 6,744,967; 6,751,271; 6,760,918; 6,795,972; 6,802,077; 6,804,708; 6,811,447;
6,817,028; D348065; D354959; D359737; D363932; D390217; D434753; RE36988

Contents
Important Safety Instructions ...............................................................................iv
Change the Way You Watch TV .......................................................................... 1
Safety First........................................................................................................... 1
The Explorer eClub .............................................................................................. 1
Identify Your 8240HD ........................................................................................... 1
What’s On the Front Panel?................................................................................. 2
What’s On the Back Panel?................................................................................. 3
Connecting the 8240HD....................................................................................... 4
Connections for an HDTV and VCR .................................................................... 5
Connections for a Standard-Definition TV and VCR ............................................ 6
Watch TV ............................................................................................................. 7
Performance Tips................................................................................................. 8
Frequently Asked Questions About HDTV ........................................................... 9
Picture Formats.................................................................................................. 10
Connecting the 8240HD to an HDTV With an HDMI Connector.........................11
Connecting the 8240HD to an HDTV With a DVI Connector............................. 12
Connecting the 8240HD to an HDTV With Component Input (PrPbY/V) .......... 13
Connecting the 8240HD to a Home Theater System With
Component Input (PrPbY/V) .............................................................................. 14
Connecting the 8240HD to a Stereo VCR and HDTV (optional)........................ 15
Connecting the 8240HD to an External SATA Hard Disk Drive (optional) ......... 16
Connecting the 8240HD in HD Mode to an SDTV With
Component Input (PrPbY/V) .............................................................................. 18
Connecting the 8240HD in SD Mode to an SDTV............................................. 18
Compliance Information ..................................................................................... 19
Index .................................................................................................................. 20
iii

iv
Heed Warnings
Adhere to all warnings on the product and in the operating
instructions.
Read, Retain, and Follow
These Instructions
Read all of the instructions before you operate this product.
Follow all operating instructions that accompany this product.
Retain the instructions for future use. Give particular attention
to all safety precautions.
Comply With Warnings
Avoid electric shock. Comply with all warnings and cautions
in the operating instructions, as well as those that are affixed
to this product.
Power Warnings
Providing a Power Source
A label on this product indicates the correct power source for
this product. Operate this product only from an electrical
outlet with the voltage and frequency indicated on the product
label.
If you are uncertain of the type of power supply to your home
or business, consult your cable service provider or your local
powercompany.
Grounding This Product (U.S.A. and
Canada Only)
WARNING: To avoid electric shock
and fire hazard, match the plug and outlet
connections carefully, then fully insert. If the
plug and outlet do not match, or you cannot
fully insert the plug, contact an electrician to
update your power outlets.
If this product is equipped with either a three-prong
(grounding pin) safety plug or a two-prong (polarized) safety
plug, follow these safety guidelines to properly ground this
product.
• For a 3-prong plug (one prong on this plug is a protective
grounding pin), insert the plug into a grounded mains,
3-prongoutlet.
Note: This plug fits only one way. If you are unable to insert
this plug fully into the outlet, contact your electrician to
replace your obsolete outlet.
• For a 2-prong plug (a polarized plug with one wide blade
and one narrow blade), insert the plug into a polarized
mains, 2-prong outlet in which one socket is wider than the
other.
Note: If you are unable to insert this plug fully into the
outlet, try reversing the plug. If the plug still fails to fit,
contact an electrician to replace your obsolete outlet.
Overloading
WARNING: Avoid electric shock and
fire hazard! Do not overload mains AC outlets
and extension cords. For products that
require battery power or other power sources
to operate them, refer to the operating
instructions for those products.
Do not overload electrical outlets, extension cords, or integral
convenience receptacles as this can result in a risk of fire or
electric shock. For products that require battery power or
other sources to operate, refer to the operating instructions
for that product.
Preventing Power Cord Damage
Arrange all power cords so that people or pets cannot walk
on the cords. Do not place objects on the cords. Do not lean
objects against the cords. Placing objects on or leaning
objects against cords can damage the cords. Give particular
attention to cords at the point at which the cord connects to
plugs, at the electrical outlets, and where the cords exit the
product.
Usage Warnings
Providing Ventilation
This product has openings for ventilation that protect it from
overheating. To ensure the reliability of this product, do the
following:
• Do not block or cover these openings.
• Do not place entertainment devices (such as VCRs or
DVDs), lamps, books, vases with liquids, or other objects
on top of this product.
• Do not place this product in any of the following locations:
- On a bed, sofa, rug, or similar surface
- Near heat sources such as radiators, heat registers,
stoves, or other products (including amplifiers) that
produceheat
- In an enclosure, such as a bookcase or rack, unless the
installationprovidesproper ventilation
Selecting a Proper Location
WARNING: Avoid personal injury and
damage to this product! An unstable surface
may cause this product to fall.
Place this product in a location that is close enough to an
electrical outlet and where the power cord is easily accessible
to be disconnected from the wall outlet or from the rear panel
of the product.
Important: The power cord is the mains power supply
disconnectdevice.
Place this product on a stable surface. The surface must
support the size and weight of this product.
Cleaning This Product
WARNING: Avoid electric shock!
Unplug this product before cleaning.
Before cleaning this product, unplug it from the electrical
outlet. Use a damp cloth to clean this product. Do not use a
liquid cleaner or an aerosol cleaner. Do not use a magnetic/
static cleaning device (dust remover) to clean this product.
IMPORTANT SAFETY INSTRUCTIONS

Checking Product Safety
Upon completion of any service or repairs to this product, the
service technician must perform safety checks to determine
that this product is in proper operating condition.
Outdoor Grounding System
If this product connects to an outdoor antenna or cable
system, be sure the antenna or cable system is grounded
(earthed). This provides some protection against voltage
surges and built-up static charges.
Article 810 of the National Electric Code (NEC)ANSI/NFPA
No. 70-1990, provides the following information:
• Grounding of the mast and supporting structure
• Grounding the lead-in wire to an antenna discharge unit
• Size of the grounding conductors
• Location of the antenna-discharge unit
• Connection to grounding electrodes
• Requirements for the grounding electrodes (see the
following antenna grounding diagram as recommended by
NECANSI/NFPA70)
Lightning
For added protection for this product during a lightning storm,
or when it is left unattended and unused for long periods of
time, unplug it from the wall outlet and disconnect the
antenna or cable system. This will prevent damage to the
product due to lightning and power-line surges. Plugging this
product into a surge protector may reduce the risk of
damage.
Note: Unplugging this product for an extended
period of time can result in loss of authorization. For
reauthorization, contact your cable service provider.
Power Lines
WARNING: To avoid electric shock, do
not locate an outside antenna system in the
vicinity of overhead power lines or power
circuits.
Do not locate an outside antenna system in the vicinity of
overhead power lines or power circuits. When installing an
outside antenna system, take extreme care to keep from
touching power lines or circuits, as contact might be fatal.
Protecting This Product From Foreign
Objects and Water or Moisture Damage
WARNING: Avoid electric shock and
fire hazard! Never push objects through the
openings in this product. Foreign objects can
cause electrical shorts that can result in
electric shock or fire. Do not expose this
product to rain or moisture. Do not place
objects filled with liquid, such as vases, on
this product.
Never push objects of any kind into this product through
openings as they may touch dangerous voltage points or
short out parts that could result in a fire or electric shock.
Do not expose this product to liquids or moisture. Do not
place this product on a wet surface. Do not spill liquids on or
near this product.
Do not use this product near water (such as a bath tub, wash
bowl, sink, or laundry tub), in a wet basement, or near a
swimming pool.
Accessories Warnings
WARNING: Avoid any potential for
electric shock or fire. Do not use accessories
with this product unless recommended by
your cable service provider.
Avoid any potential for electric shock or fire. Do not use
accessories with this product unless recommended by your
cable service provider.
Service Warnings
Servicing This Product
WARNING: Avoid electric shock!
Opening or removing the cover may expose
you to dangerous voltages. This product
contains no user-serviceable parts. Refer all
servicing to qualified service personnel.
Do not open the cover of this product. If you open the cover,
your warranty will be void. Refer all servicing to qualified
personnel only. Contact your cable service provider for
instructions.
Obtaining Service for Product Damage
For damage that requires service, unplug this product from
theAC outlet. Then, contact your cable service provider or
qualified service personnel to obtain service for the following
conditions:
• If there is damage to the power-supply cord or plug
• If liquid enters this product
• If you expose this product to rain or water
• If you drop this product, a heavy object falls on this product,
or damage occurs to the cover of this product
• If this product does not operate normally by following the
operatinginstructions
• If this product exhibits a distinct change in performance
v
IMPORTANT SAFETY INSTRUCTIONS,continued

Change the Way You Watch TV
DVR makes it easy to watch TV on your terms.
The Explorer 8240HD Digital Video Recorder (DVR) is the simple way to take control over your
TV – and your life. You take control because DVR lets you decide what’s on TV and when. So
there’s no more putting off the things you need to do, just because there’s a show on TV you want
to watch. Just think what DVR can do for you:
• Never miss a minute of your favorite movie or the big game. Simply pause the live action and
play again when you’re ready. You can even rewind what you missed.
• Two of your favorite shows on at the same time? Simple. Just record one program while you
watch the other. You can even record two programs at the same time while watching a
previously recorded program. Your VCR can’t do that.
• Is your favorite sports team having an away game and you can’t go? Imagine being able to
record it and watch it in High Definition (HD) at a more convenient time. In HD, the picture is so
clear you’ll almost forget that you’re not there.
Don’t miss another minute of the TV shows you love!
Follow the instructions in this guide to install the 8240HD, to become familiar with the buttons on
the front panel, and to access your cable services. Then, enjoy the features of the 8240HD and
change the way you watch TV!
Safety First
Before using the 8240HD, read the Important Rules for Safe Operation section of this guide.
The Explorer eClub
The online Explorer eClub provides news and information about the Explorer 8240HD DVR. You
can access the Explorer eClub on the Internet at the following Web address:
www.scientificatlanta.com/explorerclub
To join and access the online Explorer eClub, you need to enter the model number of your
8240HD. The model number is on the label on the bottom of the 8240HD.
Identify Your 8240HD
To find the serial number for your 8240HD, look on the back for a label that is similar to the
example shown here. The serial number begins with “SA“ and is located in the lower left corner of
the bar code.
If the 8240HD requires troubleshooting in the future, your cable service provider may ask for this
serial number.
Use the space provided here to record the serial number:
____________________________________________
0003B4287797
SABDQXTL N0006246618
Serial Number T11185
1

What’s On the Front Panel?
2
1 Power Turns the 8240HD on and off
2 List Displays the list of recorded programs
3 Exit Exits menus, the on-screen guide, and program information
4 Info Displays a description of the selected program. This button is available
from the on-screen guide and while viewing a program
5 Guide Accesses on-screen services, such as the on-screen guide, video-on-
demand, or pay-per-view
6 IR Sensor Receives the infrared signal from the remote control
7 LED Display Displays the selected channel number and time of day. The LED also
displays the following:
• Message ( )
• HDTV
• Power ( )
• Output Resolution (1080i, 720p, 480p, 480i)
• RECORD
• AUTO - Automatically outputs native scan rates that your TV can accept
8 VOL + and VOL - Enables you to increase and decrease the volume
9 CH + and CH - Enables you to scroll up and down through the channels
10 Select Provides access to your on-screen selection
11 Smart Card* Allows smart card access
12 USB Port* Connects to external equipment, such as a keyboard
*These connectors are reserved for future use or may not be available on all 8240HD models.
*

What’s On the Back Panel?
1 Cable In Connect the coaxial cable that delivers the signal from your cable
service provider
2 Cable Out Connect a coaxial cable to Cable Out to send audio and video signals to
a TV or VCR. These signals are standard-definition TV (SDTV) video
and stereo audio
3 PrPbY/V Connect the 8240HD (when in HD mode) to the component video input
(YPrPb) on the HDTV. When the 8240HD is configured for SD mode,
the Y/V portion of the component video output connects to the
composite video input of an HDTV or SDTV. See Connections for an
HDTV and VCR or Connections for a Standard-Definition TV and
VCR, later in this guide, for complete details
4 Digital Audio Connect an RCA cable to send a digital audio signal to a surround-
Output sound receiver or other digital audio device
5 Secondary Video Connect to either a VCR for archiving saved content from the 8240HD or
and Audio Out connect to another set of inputs (composite) on your HDTV
6 Audio Out Connect RCA cables to Audio Out to send audio signals (left and
(LEFT and RIGHT) right) to a TV with stereo outputs
7 Optical Audio Connect an optical cable to send a digital audio signal to a surround-
Output sound receiver or other digital audio device
8 S-Video Out Connect an S-Video cable to send an S-Video signal to your TV or VCR.
This signal is standard definition but higher quality than other SDTV
connections
9 HDMI Connect the HDTV HDMI™ connector to the HDMI port. HDMI supports
both digital audio and video. May be used to connect to a DVI interface
using an adaptor
10 IR (This connector reserved for future use.)
11 SATA Connect to an external Serial ATA (SATA) hard disk drive for expanded
recording capacity. Check with your cable service provider for a list of
approved hard drive models for use with the 8240HD
12 1394 Firewire Connect to display devices equipped with a 1394 input. This connector
is reserved for future use and may not be available on all 8240HD models
13 AC Outlet Connect the AC power cord from another device, such as a TV
14 AC Power Input Connect the power cord to deliver power to the 8240HD
3
T11111
IR
CABLE
OUT
THIS DEVICE IS INTENDED TO BE ATTACHED
TO A RECEIVER THAT IS NOT USED TO
RECEIVE OVER-THE-AIR BROADCAST
SIGNALS. CONNECTION OF THIS DEVICE
IN ANY OTHER FASHION MAY CAUSE
HARMFUL INTERFERENCE TO RADIO
COMMUNICATIONS AND IS IN VIOLATION
OF THE FCC RULES, PART 15.
120 VAC
60HZ 5A
LISTED 14H1
CABLE EQUIP.
120 VAC
60HZ 80W
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CABLE
IN 1394
SATA
S - VIDEO
OUT
1394
CATV CONVERTER
MADE IN MEXICO
OPTICAL
AUDIO
OUT
AVIS: RISQUE DE CHOC
ELECTRIQUE NE PAS OUVRIR
VIDEO
OUT 1 OUT 2
A
U
D
I
O
DIGITAL
AUDIO OUT
VIDEO
Y/V
Pr
Pb L
R
1 87 9 11 12 13 14102 63 4 5

Connecting the 8240HD
To connect your 8240HD to your entertainment devices, complete these steps.
Identify the additional
devices you will connect
to the 8240HD and TV.
See pages 11 through
18 and the related user
guides for more
information.
VCR DVD Other
Determine if your TV
is HD or SD and
whether it is wide
screen (16:9) or
standard screen
(4:3). See page 10
for more information.
Home Theater
4
3
16
9or
Make the connections for your TV and VCR as follows:
• If you are using an HDTV, see page 5 and the connection diagrams at the end
of this guide.
• If you are using an SDTV, see page 6 and the connection diagrams at the end
of this guide.
• If you want to archive some programs to VCR tape, see pages 5 and 6 and the
connection diagrams at the end of this guide.

3
1
2
4
Plug the 8240HD and the TV into an AC power source that is not controlled by
a switch.
5
Do not turn on the 8240HD or TV yet.
POWE
R
6
It may take several minutes for the 8240HD to receive the latest software,
programming, and service information. Wait until you see one of the following displays
on the front panel of the 8240HD that indicates that the update is complete:
• Current time • Four dashes (- - - -)
Note: If four dashes are displayed, you must call your cable service provider to get
the 8240HD authorized.
7
Set up your 8240HD for HDTV or SDTV by completing the following steps:
• Make sure the 8240HD is Off and the TV is On.
• On the front panel of the 8240HD, press GUIDE and INFO at the same time.
• Follow the on-screen instructions to choose HD or SD mode and wide screen
(16:9) or standard screen (4:3) depending upon your TV type. See Page 10 for
more information on the scan rate.
• At the conclusion of the on-screen instructions, press POWER on the 8240HD to
begin watching TV.
4
External SATADrive

L
R
OUT 2
5
Connections for an HDTV and VCR
To use the 8240HD with an HDTV, you must make one of the following connections to view the HD
content. In addition, you can make connections to a VCR to archive recordings to a VCR tape.
Refer to your TV and VCR user’s guide and the cabling diagrams in this guide for more detailed
connection information.
Note: The labeling on your 8240HD may vary slightly.
Some HDTVs have a High-Definition Multimedia
Interface (HDMI) connector. The HDMI connector
provides both a digital video and audio connection. See
the connection diagram on page 11 for an example.
DVI
Some HDTVs have only RGB connectors. If you
have one of these HDTVs, you need an RGB
adaptor. Check with your cable service provider for
information about acquiring an RGB adaptor, or you
can purchase the adaptor at your local electronics
supplier.
8240HD
Connections HDTV Connections
The PrPbY/V connectors can provide high-definition
component video signals to an HDTV.
Note: You can use the HD Setup Wizard on the
8240HD to set the HD mode and select the output
video format (480i, 480p, 720p, 1080i) that will match
the full capabilities of your HDTV.
See the connection diagram on page 13 for an
example.
The HDMI connector can provide the connection to an
HDTV with a DVI input. If your HDTV has a Digital Visual
Interface (DVI) connector, you will need an HDMI-to-DVI
adaptor, and you will need to connect a separate audio
connection.
See the connection diagram on page 12 for an example.
L R
L R
L R
DVI HDMI
PrPbY/V
RGB
L R
OUT 1
L R
OUT 1
L R
OUT 1
8240HD
Connections VCR Connections
For VCRs that have a Video and Left and Right
audio connectors, you can use the Out 2 connectors
(Video, Left, and Right) on the 8240HD.
See the connection diagram on page 15 for an
example.
VCR
L R
AUDIO
IN
For VCRs that have an S-Video and Left and Right
audio connectors, you can use the S-Video Out and
the Out 2 Left and Right connectors on the 8240HD.
L R
Adaptor Needed
Required Connections to an HDTV (use one)
Optional Connections to a VCR (use one)
VIDE
O
Y/V
Pb
Pr
VIDE
O
Y/V
Pb
Pr
B
R
G
V
H
VIDEO
OUT 2
L
A
U
D
I
O
R
VIDEO
IN
S-VIDEO
OUT
S-VIDEO
IN
Pr
Pb
Y
Adaptor Needed

L R
AUDIO
IN
6
For VCRs that have a Video and Left and Right Audio
connectors, you can use the Out 2 connectors (Video,
Left, and Right) on the 8240HD.
8240HD
Connections VCR Connections
When using the 8240HD with an SDTV, you must make one of the following connections to view
content. Some SDTVs may not have all these connections. In addition, you can make connections
to a VCR to archive recordings to a VCR tape. Refer to your TV and VCR user guides and the
cabling diagrams in this guide for more detailed information.
Note: The labeling on your 8240HD may vary slightly.
Connections for a Standard-Definition TV and VCR
The PrPbY/V connectors can provide standard-
definition component video signals to an SDTV.
Note: To connect PrPbY/V to an SDTV, you must set
the HD Setup Wizard on the 8240HD to HD Mode, and
select the output video format (typically only 480i) that
will match the capabilities of your SDTV.
See the connection diagram on page 18 for an
example.
The S-Video Out connection provides an optimal video
connection to SDTVs.
8240HD
Connections SDTV Connections
The Cable Out connector provides a video and audio
connection to an SDTV.
S-Video Composite PrPbY/V
Cable Out
L R
L R
L R
L R
OUT 1
When you set up the 8240HD in SD mode, the Y/V
connector on the 8240HD is configured as a composite
video out connector (V).
See the connection diagram on page 18 for an
example.
L R
OUT 1
VCR
L R
OUT 1
Required Connections to an SDTV (use one)
Optional Connection to a VCR
VIDE
O
Y/V
Pb
Pr
VIDE
O
Y/V
Pb
Pr
VIDEO
IN
S-VIDEO
OUT
S-VIDEO
IN
VIDEO
OUT 2
L
A
U
D
I
O
R
VIDEO
IN
CABLE
OUT CABLE IN
/
ANT IN
Pr
Pb
Y

7
Watch TV
Access Services and Programs
Access cable services and programs by pressing the following keys on the remote control:
•Guide–Access the on-screen guide. The on-screen guide displays schedules of TV programs
and other services available from your cable service provider, such as video-on-demand and
pay-per-view programs.
•Arrows–Select a program in the schedule.
•Info–Display a specific program description (either from
the on-screen guide or while viewing a program).
•Select–View a specific program in the guide.
Record One Program While Watching
Another
When two of your favorite programs are scheduled at the
same time, you can record one program on the built-in DVR
while watching the other. Use the DVR keys on the remote
control to record programs or to play back recorded
programs.
Watch Two Programs at the Same Time
You do not need a special TV to watch two programs at the
same time. Use the picture-in-picture (PIP) keys on the remote
control, and you will see a PIP screen on your TV.
Stretch and Zoom Program
You can stretch and zoom SD or HD programs by pressing
the # key on the remote control.
Avoid Screen Burn-In!
Images such as letterbox bars or side bars, bright closed-captioning backgrounds, station logos,
or any other stationary images may cause the picture tube in your HDTV to age unevenly; this is
known as screen burn-in. Refer to the user’s guide that came with your HDTV for more
information.
WARNING:
Avoid screen burn-in!
Do not display the same fixed images on your HDTV screen for extended periods of
time.
T10964
T10965

8
Performance Tips
If the 8240HD does not perform as expected, the following tips may help. If you need further
assistance, contact your cable service provider.
No Picture
• Verify that the power to your TV is turned on.
• If the 8240HD is plugged into a wall switch, verify that the switch is in the ON position.
• Verify that all cables are properly connected.
• If your system includes a VCR or stereo, verify that you have properly connected them to the
8240HD.
• Verify that the 8240HD is set to the proper screen type and resolution.
• The current channel may not be available in your service package. Try selecting another
channel to see if video is available.
No Color
• Verify that the current TV program is broadcast in color.
• Adjust the TV color controls.
• If you are using a component video connection (PrPbY/V), check that all connectors are
completely plugged into the 8240HD and TV.
No Sound
• If your setup includes a VCR or stereo, verify that you have properly connected them to the
8240HD.
• Verify that the volume is turned up.
• Verify that the mute function is not on.
• The current channel may not be available in your service package. Try selecting another
channel.
Automatic Software Updates
The TV screen displays a message that indicates the 8240HD is automatically updating its
software. Wait for the current time to display on the front panel of your 8240HD before continuing.
When the front panel displays the time, the update is complete.

9
Frequently Asked Questions About HDTV
What is Digital Television?
Digital television (DTV) is a huge leap forward in television technology compared to analog
television that has been widely available since the 1940s. DTV is delivered and displayed using
digital encoding, similar to the way a PC operates. By using digital technology, there is no variation
in picture and sound quality from the origination point until it is displayed on your television. You
always receive a high-quality picture without the wavy lines or static you might sometimes get from
a weak analog signal.
Because DTV receives and displays digital images that contain many times more picture elements
(pixels - the small dots that make up the color image on your screen) than standard analog
television, you can get a sharper on-screen image than with analog. Additionally, DTV supports
CD-quality sound. DTV includes SDTV (Standard Definition Television), EDTV (Enhanced
Definition Television), and HDTV (High-Definition Television). That means that all HDTV is digital,
but not all digital TV is high-definition. A high-definition program must originate in HD format and be
broadcast in HD format. Having an HDTV system does not mean that everything you watch will be
in high-definition. Getting the signal from digital cable also does not mean it is high-definition.
What is Standard-Definition Television?
Standard-definition television (SDTV) is basic digital television programming delivered by cable.
Typically, the SDTV screen is the same, nearly square shape as an analog television screen.
Digital images on an SDTV set are crisp and clear—noticeably better than on a standard analog
television set using an antenna to receive over-the-air signals.
What is High-Definition Television?
High-definition television (HDTV) is a completely new way to send and receive television broadcast
signals. HDTV images are made up of pixels that are much smaller and closer together than those
used in standard analog television, and there are millions of them. Thus, HDTV can display five to
six times the detail of analog television to deliver picture quality that is much more realistic,
dimensional, and precise. SDTV programs can be viewed on an HDTV. Another feature of HDTV is
digital surround sound using Dolby Digital®, which is the same technology used to produce the
sound you hear in movie theaters.
Are Local TV Stations Broadcasting in HDTV?
Many local TV stations are transmitting digital signals. However, transmitting a digital signal does not
mean transmitting an HDTV signal. Some stations are using the new bandwidth to broadcast several
standard-definition channels. Most stations, once they begin broadcasting in digital, are offering HD
content from their parent network (for example, CBS,ABC, NBC, Fox, WB, UPN, and PBS).
Why Are Some HDTVs 4:3 Aspect Ratio and Others 16:9?
The aspect ratios differ because television manufacturers build both standard-screen and wide-
screen HDTVs to appeal to consumer viewing preferences. The two aspect ratios are as follows:
• On wide-screen (16:9) HDTVs, the programming is displayed on the full screen.
• On standard-screen (4:3) HDTVs, the programming is displayed in letterbox format in the middle
of the screen. (There are bars surrounding the picture.)
Where Are the Connection Diagrams?
The diagrams at the end of this guide show examples of common ways to connect the 8240HD to
your HDTV, DVD, and home theater receiver. However, these diagrams do not show every
possible combination of devices. Refer to the user’s guides that came with your other electronic
devices for further information.
What Cables Do I Need?
Some of the cables and adaptors shown in the diagrams may not be included with the 8240HD.
The required cables are shown in the connection diagrams in this guide.

10
Picture Formats
A standard-screen HDTV has a 4x3
aspect ratio. The screen is 4 units wide for
every 3 units tall.
A wide-screen HDTV is one-third wider than a
standard-screen HDTV. The screen is 16 units
wide for every 9 units tall.
What is the Difference Between a Standard-Screen and a
Wide-Screen HDTV
The type of screen your HDTV has (wide screen or standard screen) determines how the 8240HD
displays programs on the screen. The picture format for an HDTV is a combination of aspect ratio
and screen resolution and is different for standard-screen and wide-screen HDTVs.
What is Aspect Ratio?
An aspect ratio is the ratio of the width to the height of the TV screen. The aspect ratios differ
because the television industry manufactures both standard-screen and wide-screen HDTVs to
appeal to consumer viewing preferences.
What is the Screen Resolution and Scan Rate?
The screen resolution indicates the amount of detail that the picture displays. Resolution is
identified by the number of display lines on the screen. The techniques that an HDTV uses to
“paint” the picture on the screen are referred to as progressive and interlaced.
With the progressive method, every pixel on the screen is refreshed simultaneously. The
interlace method involves refreshing pixels in alternation — first the odd lines and then the even
lines.
For advance setup, select the scan modes that your TV can support. Refer to your DVR and HDTV
user’s guides to choose the proper scan rates (480i, 480p, 720p, 1080i) for your setup.
For example, a resolution of 1080i indicates that the screen shows 1080 lines in an interlaced
display, and 480p indicates that the screens shows 480 lines in a progressive display.
Notes:
• The screen resolution (1080i, 480p, and so forth) is sometimes referred to as the scan rate.
The terms are interchangeable.
• You can stretch and zoom the displayed picture using the built-in capability of the 8240HD by
pressing the # key on the remote control. Refer to your DVR user’s guide for more information
on this feature.
A screen resolution of 480p or 480i fills
the screen. A screen resolution of 720p or 1080i fills the screen.
4
3
16
9

11
Connecting the 8240HD to an HDTV With an
HDMI Connector
Important Note Regarding the HDMI Interface on the 8240HD
The HDMI interface will automatically configure the audio output for a format supported by the
television. Because not all TVs support a DolbyDigital input, the HDMI interface may automatically
select a 2-channel stereo audio configuration instead of Dolby Digital. When the output is
configured for 2-channel audio, this configuration is carried over to the other digital audio outputs
of the 8240HD. This configuration prevents your home theater system or Dolby Digital decoder
from providing the full Dolby Digital surround sound effect.
On the 8240HD, you may override the automatic selection of audio by the HDMI interface by
completing the following steps.
1. Press SETTINGS twice on the remote control to open the General Settings menu.
2. Press MOVE UP or MOVE DOWN to select the option Audio: Digital Out.
3. Press MOVE RIGHT to select Dolby Digital. This setting will send Dolby Digital audio to the
HDMI, DIGITALAUDIO OUT, and OPTICALAUDIO OUT connectors on the 8240HD.
Note: If the TV (video/audio monitor) connected to the 8240HD using HDMI is not Dolby Digital
capable, it may not produce audio through its speakers when the Audio: Digital Out setting on the
8240HD is set to Dolby Digital. You can either switch the Audio: Digital Out setting back to HDMI
when you are not using the home theater or Dolby Digital decoder, or you can connect the
baseband audio outputs (OUT 1 Audio Left and Right) to the TV.
WARNING:
Electric shock hazard! Unplug all electronic devices before connecting or disconnecting any
device cables to the 8240HD.

Connecting the 8240HD to an HDTV With a
DVI Connector
Note: When connecting the HDMI connector to the DVI connector on your HDTV, you need an
HDMI-to-DVI adaptor, and you need a separate audio connection.
WARNING:
Electric shock hazard! Unplug all electronic devices before connecting or disconnecting any
device cables to the 8240HD.
12

Connecting the 8240HD to an HDTV With
Component Input (PrPbY/V)
WARNING:
Electric shock hazard! Unplug all electronic devices before connecting or disconnecting any
device cables to the 8240HD.
13

Connecting the 8240HD to a Home Theater System
With Component Input (PrPbY/V)
Note: This connection assumes
that audio is provided by the home
theater speakers.
14
WARNING:
Electric shock hazard! Unplug
all electronic devices before
connecting or disconnecting any
device cables to the 8240HD.
Back of
DVD Player
AUDIO OUT
LR
VIDEO
OUT
DIGITAL
OUT
COAXIAL
S-VIDEO
OUT
OPTICAL
DIGITAL OUT COMPONENT VIDEO OUT/ PROGRESSIVE SCAN
P B P B Y
Back of Home Theater Receiver
VIDEO
COMPONENT VIDEO
1
Y
P B
P R
2
Y
P B
P R
Y
P B
P R
L
R
AUDIO
S-VIDEO
DIGITAL
AUDIO TV/CABLE
1
2
3
4
VIDEO
L
R
AUDIO
S-VIDEO
DVD
VIDEO
L
R
AUDIO
S-VIDEO
VIDEO 1
S-VIDEO
OUT
VIDEO OUT
MONITOR
VIDEO
L
R
AUDIO
S-VIDEO
OUTIN
OUTIN
T11135
Back of
HDTV
DVI/HDCP
IN
AUDIO
CENTER
CHANNEL IN
AUDIO IN
DVI/HDCP
ANT (75½)
INOUT
LR
ANT-1
HD 2
Y
OUT
ANT-2
PB
PR
L
R
AUDIO
VIDEO
L/
MONO
R
L/
MONO
R
VIDEO-1 VIDEO-2
AUDIO
IN
ON OFF
IN
HD 1
S-VIDEO
VIDEO Y
PB
PR
L
R
AUDIOAUDIO
Back of Home Theater Receiver
VIDEO
COMPONENT VIDEO
1
Y
PB
PR
2
Y
PB
PR
Y
PB
PR
L
R
AUDIO
S-VIDEO
DIGITAL
AUDIO TV/CABLE
1
2
3
4
VIDEO
L
R
AUDIO
S-VIDEO
DVD
VIDEO
L
R
AUDIO
S-VIDEO
VIDEO 1
S-VIDEO
OUT
VIDEO OUT
MONITOR
VIDEO
L
R
AUDIO
S-VIDEO
OUTIN
OUTIN
T11136