This was a hard to find manual. When I did find it , some sites wanted way too much for the file.
Owner-manual .com had it for a really reasonable price. Not only that but it was sent very quickly and was a quality scanned document, unlike some others I purchased from a different site.
Good job guys!!
Larry
Text excerpt from page 51 (click to view)
Recording
Recording both the audio and video
The DTR-6.4/5.4 also allows you to record the audio and video signals output from the VIDEO OUT 1 and 2 jacks. 1. Press the input source button for the source you want to record.
2. Start recording at the recording device connected to the VIDEO OUT 1 and 2 jacks. Note: Be aware that if you change the input source that you are watching (or listening to), the selected source will be recorded. Hint You can also record the video from one source and the audio from another source together to make your own home movies and the like. For example, if you want to record the video from a video camera connected to Video 4 and the audio from a CD player connected to CD IN, at step 1 above, press the Video 4 source button and then the CD source button.