DirecTV R10 User Manual page 150

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Audio cable). When using the red and white ends of a Composite A/V cable for audio,
do not plug in the yellow (video) end.
9. Serial. For future use.
10. Composite Audio and Video Outputs (1 and 2). Use the yellow end of a Composite
A/V cable to connect video to your TV (or VCR, or A/V receiver) with one of these
jacks. You can send a video signal to two different devices at the same time using both
of the yellow jacks.
Use the red and white ends of a Composite A/V cable to connect stereo audio to your
TV (or VCR, or A/V receiver) with these jacks. You can send an audio signal to two
different devices at the same time using R/L Audio Output 1 and R/L Audio Output 2.
If your TV only has one (white) audio input jack, don't connect the red end. If you use
an S-Video cable for video, use just the L/R Audio Output jacks for stereo audio. You
can ignore these jacks if you're using RF Out or Digital Audio Out.
11. USB (Universal Serial Bus) (2 each). For future use.
12. Digital Audio. You can use the Digital Audio jack to connect your DVR to an A/V
receiver with a digital audio input jack. To do so, you will need an Optical Digital
Audio cable (not supplied). Ordinarily, your DVR produces tones to indicate when
certain buttons on the remote control are pressed or to indicate signal strength when
you are positioning your dish. You will not hear these tones while watching programs
with digital audio.
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