Audio playback delayed thru Firewire monitor - JVC BR-DV3000

First I apologize for the length of this post, but I want to make sure I've adequately described the problem. For years, I've edited with FCP using a JVC HR-DVS2U (DV/SVHS combo deck) with great results. I use it to capture and output through firewire, also connected is a monitor and a UVW-1600 Beta machine.
Now a buddy of mine also has a system using a JVC BR-DV3000. When I attempted to set his system up similar to mine, using the DV deck as the conduit for monitoring and recording to beta, he complained about audio dropping out at the beginning of transitions in the timeline. This was the weirdest thing! How does the DV machine know that a transition is taking place?! I thought it was just data out. I finally traded out machines with him and hooked it up to my system. At first, I didn't have any problems. I mainly edit 30-second commercials, so I played back a timeline with three dozen transitions in it without a hitch! So now I'm really confused, until one day I had a 20 minute long timeline of about 20 promos back to back, all digitized from beta. Sure enough there was the audio playback delay. I switched the audio playback from firewire to computer audio out and I did not have the problem, but I could not record out to tape in this configuration. Then I thought maybe it's just the length of the timeline, so I opened up a commercial timeline that plays back fine and pasted one of the beta promos in there. The 30 second spot played back fine and then when it hit the beta vid it had the audio dropout. Now understand, the audio is NOT out of sync, it just drops out for about two seconds when playing back from the timeline. You can watch the VU meter on the deck, it completely loses the audio for two seconds, mostly when you first start the timeline and at most transitions. I now think it may have something to do with the source material. I just digitized some video from DV that was shot on a JVC camera, when most of the stuff I shoot is from a Canon XL1. The JVC camera footage has this dropout issue. Any clues?

This has happened to me too. The problem is with the firmware in older DV3000 decks. JVC has an update, but you can't do it yourself. JVC or your dealer will have to do it for you. In the meantime there is a workaround. Make sure your DV3000 is powered on FIRST. Then start FCP. That trick always worked for me. Good Luck.

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Thanks for responding.
It seems quite strange that the driver update caused the problem...maybe I should roll back to the previous driver? worth a try I guess...although this is a new machine so doing that could cause other problems.
ANNNNOYING....on the internal soundcard, whenever I click the mouse or scroll the timeline I hear annoying clicks and pops thru my speakers.
What kind of 'pro' software doesnt let u use an external soundcard. I think Apple really screwed up here. I feel sorry for everyone who invested in full-on FCP suites and training time for editing feature films who are no longer going to get updates and support.

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what is the difference between Apple Firewire
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Protocol
turn up my jvc vtr so i can...
I believe the "DVCPRO" is specifically for
Panasonic.
this describes control, not playback of video or audio. plus, i use the dvcpro firewire setting for playback of audio and video in fcp 4.5. as described earlier, i already have rs422 control.
At least you tried looking in the manual
no, i didn't "try" looking in the manual, i did look in the manual.
thanks anyway.

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Audio playback delayed thru Firewire monitor - JVC BR-DV3000

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