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

eCM MAC: 001868C16907

STB RF MAC: 001868C16906

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:

____________________________________________

1