Scientific Atlanta 4250HDC manuale d’uso

SETTINGS EXIT GUIDE INFO CH - CH + VOL - VOL + SELECT EXPLORER 4250HD C POWER SETTINGS Explorer ® Digital Set-T op User ’ s Guide Models 4240HDC TM and 4250HDC TM with Multi-Stream CableCARD TM Interface[...]

Notice to Installers The servicing instructions in this notice are for use by quali Þ ed service personnel only . T o reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions, unless you are quali Þ ed to do so. U.S. Patents A patent notice is af Þ xed to this product. In addition, t[...]

Contents Important Safety Instructions ................................................................................ iv Welcome ............................................................................................................... 1 Safety First ............................................................................................[...]

iv • 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/NFP A 70) W ARNING: A void electric shock and Þ re hazard! Do not locate an outside antenna system in the vicinity of overhead power lines or powe[...]

v Accessories W arning W ARNING: A void electric shock and Þ re hazard! Only use attachments/accessories speci Þ ed by your service provider or the manufacturer . Service W arnings W ARNING: A void 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 , you[...]

W elcome The Explorer ® 4240HDC TM and 4250HDC TM Digital Interactive Set-T ops with a Multi-Stream CableCARD TM (M-Card TM ) provide high-de Þ nition (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 [...]

2 What’ s In The Carton? The set-top carton contains the following items: Additional Equipment Y ou Might Need Y ou 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 inf[...]

SETTINGS EXIT GUIDE INFO CH - CH + VOL - VOL + SELECT EXPLORER 4250HD C POWER SETTINGS T12966 1 4 12 11 7 8 9 10 56 23 What’ s on the Front Panel? 3 1 Power T urns the set-top on and off 2 VOL +, VOL - Increases and decreases the volume 3 CH+, CH - Scrolls up and down through the channels 4 Select Provides access to your on-screen selection 5 IR [...]

IR THIS DEVICE IS INTENDED TO BE ATT ACHED TO A RECEIVER THAT IS NOT USED TO RECEIVE OVER-THE-AIR BROADCAST SIGNALS. CONNECTION OF THIS DEVICE IN ANY OTHER F ASHION MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS AND IS IN VIOLATION OF THE FCC RULES, PAR T 15 . 120 V AC 60HZ 400W LISTED 14H1 CABLE EQUIP . 120 V AC 60HZ 40W CABLE IN 1394 S - [...]

Connecting the Set-top T o connect your set-top to your entertainment devices, complete these steps. Identify the additional devices you will connect to the set-top and TV . See pages 12 through 17 and the related user guides for your devices for more information. VCR DVD D-VCR Determine if your TV is HD or SD and whether it is wide screen (16:9) o[...]

6 Connections for an HDTV and VCR T o use the set-top with an HDTV , you must make one of the following connections to view the HD content. In addition, you can make connections to a digital or analog VCR to record to a VCR tape. Refer to your TV and VCR user’s guides and the cabling diagrams in this guide for more detailed connection information[...]

7 For VCRs with Video and Left and Right Audio connectors, you can use the Out 2 connectors (Video, Left, and Right) on the set-top. Set-top Connections VCR Connections When using the set-top 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 connec[...]

8 V iew T elevision Programming 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 [...]

9 Performance T ips If the set-top does not perform as expected, the following tips may help. If you need further assistance, contact your service provider . No Picture • V erify that the power to your TV is turned on. • V erify that your HDTV is in HD mode. If necessary , run the HD Setup Wizard to select HD mode. • If the set-top is plugged[...]

10 Frequently Asked Questions What is Digital T elevision? 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[...]

11 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 sc[...]

12 Connecting to an HDTV with an HDMI Connector Important Notes Regarding the HDMI Interface on the Set-T op The HDMI interface automatically con Þ gures the audio output for a format supported by the television. Because not all TVs support the Dolby® Digital input, the HDMI interface may automatically select a 2-channel stereo audio con Þ gurat[...]

Connecting to an HDTV with a DVI Connector Required cables: • 1 HDMI-to-DVI or 1 HDMI-to-HDMI cable and 1 DVI adapter • 1 audio Left/Right cable Notes : • When you connect the HDMI connector to the DV I connector on your HDTV , you need an HDMI- to-DVI adaptor and a separate audio connection. • Digital content is encrypted with High-Bandwid[...]

Connecting to an HDTV with Component Input (PrPbY) Required cables: • 1 set component video cables (PrPbY) • 1 audio Left/Right cable 14 W ARNING: Electric shock hazard! Unplug all electronic devices before connecting or disconnecting any device cables to the set-top. T12970 Explorer Set-top IR THIS DEVICE IS INTENDED TO BE ATT ACHED TO A RECEI[...]

15 Note : This connection assumes that audio is provided by the home theater speakers. W ARNING: Electric shock hazard! Unplug all electronic devices before connecting or disconnecting any device cables to the set-top. Back of HDTV DVI/HDCP IN AUDIO CENTER CHANNEL IN AUDIO IN DVI/HDCP ANT (75½) IN OUT L R ANT-1 HD 2 Y OUT ANT-2 P B P R L R AUDIO V[...]

T12972 Explorer Set-top IR THIS DEVICE IS INTENDED TO BE ATT ACHED TO A RECEIVER THAT IS NOT USED TO RECEIVE OVER-THE-AIR BROADCAST SIGNALS. CONNECTION OF THIS DEVICE IN ANY OTHER F ASHION MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS AND IS IN VIOLATION OF THE FCC RULES, PART 15. 120 V AC 60HZ 400W LISTED 14H1 CABLE EQUIP . 120 V AC 60HZ [...]

Connecting the Set-top in HD Mode to an SDTV with Component Input (PrPbY) Connecting to an HDTV with a 1394 Connector 17 Required cables: • 1 6-pin to 4-pin 1394 cable (Consult your TV user ’s guides for more detailed information) • 1 set component A/V cables • 1 set audio Left/Right cables W ARNING: Electric shock hazard! Unplug all electr[...]

18 Index 1394 4, 6, 17 A AC Outlet iv , 4 Power input 4 Aspect ratio 1 1 B Back panel 4 Burn-in of screen 8 C CableCard 2, 4, 10 Cables 2 Cable Out, connector 4 Compliance, FCC and Canadian EMI Back Cover Component video connection. See PrPbY Composite 7 Connectors See also Front panel; Back panel required for HDTV 6 required for SDTV 7 VCR 6, 7 Co[...]

Index, continued 19 Standard-de Þ nition, What is it 10 Standard screen TV 1 1 Stretching and zooming picture 8, 1 1 Support, consumer 1 T T ime display 5 T roubleshooting 9 TV digital, what is it 10 formats 1 1 HDTV , what is it 10 programming 8 resolution 1 1 standard screen 1 1 standard-de Þ nition, What is it 10 wide screen 1 1 U Updating, so[...]

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