Magnavox MRV640 Owner's Manual page 32

The front video and audio in jacks can be used to easily connect a camcorder to the DVD
recorder. These jacks are in the lower right corner of the front panel.
If your camcorder only uses a video output (Composite Video or CVBS), connect the
VIDEO input of the DVD Recorder to the corresponding output jack on the camcorder.
You must also connect the AUDIO left/right in jacks of the DVD Recorder to the audio out
jacks on the camcorder.
Choose ' ' as the DVD Recorder's channel when using these jacks.
There are two analog L AUDIO R OUT jacks (audio output left/right) and two
L AUDIO R (audio input left/right jacks on the back of the DVD Recorder.
These can be used to connect the following devices:
This amplifier jack (input) should only be used for record players without
a pre-amplifier. Do
recorder.
This could damage the DVD Recorder or the amplifier.
use this input jack to connect the DVD
Connecting additional devices