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

10
Optional Connection to a VCR
4250HD Connections VCR Connections
Connections for a Standard-Definition TV and VCR
To use the 4250HD with an SDTV, you must make one of the following connections to view content. Some
SDTVs may not have all these connections. Refer to your TV and VCR user’s guides and the cabling diagrams
in this guide for more detailed information. The following table lists the connections in order of performance,
beginning with the connection that would yield the best overall performance.
Note: The labeling on your 4250HD may vary from the labels shown in the following table.
Required Connections to an SDTV (choose one)
The PrPbY/V connectors can provide standard-
defi nition component video signals to an SDTV.
See page 18 for an example.
Note: To connect PrPbY/V to an SDTV, you must
set the HD Setup Wizard on the 4250HD to HD-
Mode, and select the output video format (typically
only 480i) that will match the capabilities of your
SDTV.
PrPbY/V
4250HD Connections
SDTV Connections
AUDIO OUT
L
R
HDTV
Pr
Pb
Y
AUDIO IN
L
R
Pr
Pb
Y
The S-Video Out connection provides an optimal
video connection to SDTVs.
S-Video
L
R
S-VIDEO
OUT
AUDIO IN
L
R
S-VIDEO
IN
Composite
When you set up the 4250HD in SD mode, the
Y/V connector on the 4250HD is confi gured as a
composite video out connector (V). See page 18
for an example.
AUDIO IN
L
R
VIDEO
IN
AUDIO OUT
L
R
HDTV
Pr
Pb
Y
Pr
P
b
Cable Out
The Cable Out connector provides a video and
audio connection to an SDTV.
CABLE
OUT
CABLE/
ANTENNA
VCR
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
4250HD.
L
R
S-VIDEO
OUT
AUDIO IN
L
R
S-VIDEO
IN










