User`s guide
Table Of Contents
- Explorer 4250HD Home Gateway
- Notice to Installers
- U.S. Patents
- Contents
- Important Safety Instructions
- Welcome to the Explorer 4250HD
- Safety First
- Explorer 4250HD Home Gateway Serial Number
- Front Panel Features
- Back Panel Connectors
- Connecting the 4250HD
- Connections for an HDTV and VCR
- Connections for an SDTV and VCR
- Performance Tips
- Automatic Software Updates
- Watching TV
- Connection Diagrams
- Frequently Asked Questions about HDTV and Digital TV
- Picture Formats
- FCC Compliance
- Macrovision Copyright Notice
- Software and Firmware Use
- Disclaimer
- Back Page

4
Welcome to the Explorer 4250HD
Follow the instructions in this guide to install the Explorer
®
4250HD
™
Home Gateway, to become familiar with
the buttons on the front panel, and to access your cable services. Then, enjoy the features of the 4250HD.
Safety First
Before using the 4250HD, read the IMPORTANT SAFETY INSTRUCTIONS section of this guide.
For more information about this product, visit our website:
www.scientifi catlanta.com/products/consumers/new_cableboxes.htm
Explorer 4250HD Home Gateway Serial Number
To fi nd the serial number for your 4250HD, 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 4250HD requires troubleshooting in the future, your cable service provider or Scientifi c-Atlanta may
ask for this serial number.
Use the space provided here to record the 4250HD serial
number: ______________________________________
0003B4287797
SABDQXTL N0006246618










