Explorer® Digital Set-Top
User’s Guide
Models 4240HDCTM and 4250HDCTM with Multi-Stream CableCARDTM Interface
EXPLORER
4250HDC
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CH+ |
SELECT |
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VOL- |
VOL+ |
GUIDE |
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INFO |
POWER |
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EXIT |
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CH- |
SETTINGS |
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Notice to Installers
The servicing instructions in this notice are for use by qualiÞed service personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions, unless you are qualiÞed to do so.
Note to System Installer
For this apparatus, the coaxial cable shield/screen shall be grounded as close as practical to the point of entry of the cable into the building.For products sold in the US and Canada, this reminder is provided to call the system installer's attention to Article 820-93 and Article 820-100 of the NEC (or Canadian Electrical Code Part 1), which provides guidelines for proper grounding of the coaxial cable shield.
CAUTION: To reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts inside. Refer servicing to qualified service personnel.
WARNING
TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
This symbol is intended to alert you that uninsulated voltage within this product may have sufficient magnitude to cause electric shock.Therefore, it is dangerous to make any kind of contact with any inside part of this product.
Ce symbole a pour but d’alerter toute personne qu’un contact avec une pièce interne de ce produit, sous tension et non isolée, pourrait être suffisant pour provoquer un choc électrique. Il est donc dangereux d’être en contact avec toute pièce interne de ce produit.
This symbol is intended to alert you of the presence of important operating and maintenance (servicing) instructions in the literature accompanying this product.
Ce symbole a pour but de vous avertir qu’une documentation importante sur le fonctionnement et l’entretien accompagne ce produit.
20070131 SysInstaller 820 US/Canada/Intl
U.S. Patents
A patent notice is afÞxed to this product. In addition, the product may also be covered by one or more of the following patents:
4,498,169, 4,692,919, 4,748,667; 4,829,569; 4,866,770; 4,885,775; 4,888,799; 4,890,319; 4,922,456; 4,922,532; 4,924,498; 4,965,534; 4,991,011; 5,003,384; 5,012,510; 5,029,207; 5,045,816; 5,053,883; 5,054,071; 5,058,160; 5,142,575; 5,142,690; 5,146,526; 5,155,590; 5,214,390; 5,225,902; 5,225,925; 5,235,619; 5,237,610; 5,239,540; 5,241,610; 5,247,364; 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; 5,301,028; 5,309,514; 5,317,391; 5,319,709; 5,341,425; 5,347,388; 5,347,389; 5,357,276; 5,359,601; 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; 5,420,866; 5,420,923; 5,425,101; 5,428,404; 5,430,568; 5,434,610; 5,436,749; 5,438,370; 5,440,632; 5,442,472; 5,455,570; 5,457,701; 5,471,492; 5,477,199; 5,477,262; 5,477,282 5,477,370; 5,481,389; 5,481,542; 5,485,221; 5,493,339; 5,497,187; 5,500,758; 5,502,499; 5,506,904; 5,519,780; 5,539,822; 5,550,825; 5,579,055; 5,579,057; 5,583,562; 5,592,551; 5,596,606; 5,600,378; 5,602,933; 5,640,388; 5,657,414; 5,675,575; 5,684,876; 5,715,515; 5,724,525; 5,734,822; 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; 6,822,972; 6,823,385; 6,832,386; 6,845,106; 6,868,473; 6,874,075; 6,889,191; 6,909,471; 6,917,622; 6,917,628; 6,922,412; 6,927,806; 6,928,656; 6,931,058; 6,937,729; 6,969,279; 6,971,008; 6,971,121; 6,978,310; 6,986,156; 6,988,900; 6,996,838; 7,010,801; 7,053,960; 7,065,213; 7,069,578; 7,069572; D348065; D354959; D359737; D363932; D390217; D434753; D507240; D507535; D513407; D516518; RE36368; RE36988
20070417 Patents
Contents |
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Important Safety Instructions................................................................................ |
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iv |
Welcome............................................................................................................... |
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1 |
Safety First ........................................................................................................... |
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1 |
For More Information............................................................................................ |
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1 |
Identify Your 4240HDC or 4250HDC.................................................................... |
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1 |
What’s in the Carton? ........................................................................................... |
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2 |
Additional Equipment You Might Need ................................................................. |
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2 |
What’s on the Front Panel? .................................................................................. |
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3 |
What’s on the Back Panel? .................................................................................. |
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4 |
Connecting the Set-top......................................................................................... |
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5 |
Connections for an HDTV and VCR..................................................................... |
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6 |
Connections for a Standard-DeÞnition TV and VCR ............................................ |
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7 |
View Television Programming .............................................................................. |
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8 |
Performance Tips ................................................................................................. |
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9 |
Frequently Asked Questions............................................................................... |
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10 |
Picture Formats ................................................................................................... |
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11 |
Connecting to an HDTV with an HDMI Connector ............................................. |
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12 |
Connecting to an HDTV with a DVI Connector................................................... |
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13 |
Connecting to an HDTV with Component Input (PrPbY).................................... |
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14 |
Connecting to a Home Theater System with Component Input (PrPbY)............ |
15 |
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Connecting to a Stereo VCR and HDTV (optional) ............................................ |
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16 |
Connecting to an HDTV with a 1394 Connector................................................. |
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17 |
Connecting the Set-top in HD Mode to an SDTV with |
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Component Input (PrPbY) .................................................................................. |
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Index................................................................................................................... |
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Compliance Information........................................................................ |
Back Cover |
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iii
IMPORTANT SAFETY INSTRUCTIONS
Read These Instructions
Keep These Instructions Heed All Warnings Follow All Instructions
Power Source Warning
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 service provider or your local power company.
Ground the Product
WARNING:
Avoid electric shock and Þre hazard! Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A groundingtype plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not Þt into your outlet, consult an electrician for replacement of the obsolete outlet.
If this product connects to coaxial cable wiring, be sure the cable system is grounded (earthed). Grounding provides some protection against voltage surges and built-up static charges.
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 NEC ANSI/NFPA 70)
WARNING:
Avoid electric shock and Þre hazard! Do not locate an outside antenna system in the vicinity of overhead power lines or power circuits. Touching power lines or circuits might be fatal.
Protect the Product from Lightning
For added protection, unplug this apparatus during lightning storms or when unused for long periods of time. In addition to disconnecting the AC power from the wall outlet, disconnect the signal inputs.
Verify the Power Source from the On/Off Power Light
When the on/off power light is not illuminated, the apparatus may still be connected to the power source. The light goes out when the apparatus is turned off, regardless of whether it is still plugged into an AC power source.
Eliminate AC Mains Overloads
WARNING:
Avoid electric shock and Þre hazard! Do not overload AC mains, outlets,
extension cords, or integral convenience receptacles. For products that require battery power or other power sources to operate them, refer to the operating instructions for those products.
iv
IMPORTANT SAFETY INSTRUCTIONS, continued
Prevent Power Cord Damage
Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where the cord exits from the apparatus.
Provide Ventilation and Select a
Location
•Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
•Do not place this apparatus on a bed, sofa, rug, or similar surface.
•Do not place this apparatus on an unstable surface.
•Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including ampliÞers) that produce heat.
•Do not install this apparatus in an enclosure, such as a bookcase or rack, unless the installation provides proper ventilation.
•Do not place entertainment devices (such as VCRs or DVDs), lamps, books, vases with liquids, or other objects on top of this product.
Protect from Exposure to Moisture and Foreign Objects
Do not use this apparatus near water.
WARNING:
Avoid electric shock and Þre hazard! Do not expose this product to liquids, rain, or moisture.
WARNING:
Avoid electric shock and Þre hazard! Unplug this product before cleaning. Clean only with a dry cloth. Do not use a liquid cleaner or an aerosol cleaner. Do not use a magnetic/static cleaning device (dust remover) to clean this product.
WARNING:
Avoid electric shock and Þre hazard! Never push objects through the openings in this product. Foreign objects can cause electrical shorts that can result in electric shock or Þre.
Accessories Warning
WARNING:
Avoid electric shock and Þre hazard! Only use attachments/accessories speciÞed by your service provider or the manufacturer.
Service Warnings
WARNING:
Avoid electric shock! Do not open the cover of this product. Opening or removing the cover may expose you
to dangerous voltages. If you open the cover, your warranty will be void. This product contains no user-serviceable parts. Refer all servicing to qualiÞed service personnel.
Servicing is required when the apparatus has been damaged in any way, such as a powersupply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
Check 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.
Protect the Product when Moving It
Always disconnect the power source when moving the apparatus or connecting or disconnecting cables.
WARNING:
Avoid personal injury and
damage to this product! Use
only with the cart, stand, tripod, 
bracket, or table speciÞed by the
manufacturer or sold with the apparatus. When a cart is used, use caution when moving the cart/ apparatus combination to avoid injury from tip-over.
20070320 Set-Top Cable US & Canada
v
Welcome
The Explorer® 4240HDCTM and 4250HDCTM Digital Interactive Set-Tops with a Multi-Stream CableCARDTM (M-CardTM) provide high-deÞnition (HD) capability and broadband digital video services.
Follow the instructions in this guide to install the 4240HDC or 4250HDC, to become familiar with the buttons on the front panel, and to access your cable services. Then, enjoy the features of the 4240HDC or 4250HDC and change the way you watch TV!
Safety First
Before using the set-top, read the Important Safety Instructions section of this guide.
For More Information
The consumer support website provides news and information about this product. For more information, please refer to the following Web address:
http://www.scientiÞcatlanta.com/products/consumers/new_cableboxes.htm
Identify Your 4240HDC or 4250HDC
To Þnd the serial number for your 4240HDC or 4250HDC, look on the back for a label that is similar to the example shown here. The serial number begins with “STB SN“ and is located beneath the bar code.
STB SN: SABNFSRVG |
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eCM MAC: |
001868C16907 |
STB RF MAC: 001868C16906 |
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Serial Number |
T13039 |
If your 4240HDC or 4250HDC requires troubleshooting in the future, your service provider may ask for this serial number.
Use the space provided here to record the serial number:
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1
What’s In The Carton?
The set-top carton contains the following items:
EXPLORER 4250HDC
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CH+ |
SELECT |
VOL- |
VOL+ |
GUIDE |
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INFO |
POWER |
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EXIT |
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CH- |
SETTINGS |
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• 4240HDC or 4250HDC Set-top • Connection Guide • Power Cord
• Component Video Cables (PrPbY) |
• Audio Left/Right Cable |
Additional Equipment You Might Need
You might need some of the cables and adapters shown below for connecting the set-top to your home entertainment devices. See the connection information beginning on page 12 for more information.
Check with your service provider for information about acquiring cables or adapters, or you can purchase cables or adapters at your local electronics supplier.
Multi-Stream
CableCARD (obtain from your service provider)
S-Video
Cable
HDMI-to-HDMI
Cable
HDMI-to-DVI
Cable
RF Coaxial
Cable
Composite |
HDMI |
A/V Cables |
Adapter |
RGB Adapter |
RGB |
Cable |
Adapter |
(RCA to RCA) |
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RGB Adapter |
RGB Adapter |
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Cable |
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Cable |
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(RCA to VGA) |
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(RCA to BNC) |
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Optical Digital |
IEEE 1394 |
Audio Cable |
6-Pin |
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to 4-Pin |
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Cable |
Coaxial Digital |
IR Extender |
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Cable |
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Audio Cable |
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2
What’s on the Front Panel?
EXPLORER
4250HDC
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CH+ |
SELECT |
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VOL- |
VOL+ |
GUIDE |
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INFO |
POWER |
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EXIT |
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CH- |
SETTINGS |
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T12966 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 10 |
11 |
12 |
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1 |
Power |
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Turns the set-top on and off |
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2 |
VOL +, VOL - |
Increases and decreases the volume |
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3 |
CH+, CH - |
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Scrolls up and down through the channels |
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4 |
Select |
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Provides access to your on-screen selection |
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5 |
IR Sensor |
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Receives the infrared signal from the remote control |
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6 |
LED Display |
Displays the selected channel number and time of day. The LED also |
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displays the following: |
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•Message ( 
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•HDTV
•Power ( 
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•Output Resolution (1080i, 720p, 480p, or 480i)
•AUTO (Automatically outputs native scan rates that your TV can accept)
7 |
Guide |
Accesses on-screen services, such as the on-screen guide, video-on- |
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demand, or pay-per-view |
8 |
Info |
Displays a description of the selected program. This button is available |
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from the on-screen guide and while viewing a program |
9 |
Exit |
Exits menus, the on-screen guide, and program information |
10 |
Settings |
Provides access to the Settings menu |
11 |
Smart Card Slot |
Reserved for future use |
12 |
USB Port |
Connects to external equipment, such as a keyboard or mouse |
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(reserved for future use) |
Note: This illustration may vary from the actual product.
3
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