Question about Panasonic AG-DVC30 Mini DV Digital Camcorder

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Intermittent audio problems from mic jack

I've tested several mics with my ag-dvc30 and with other cameras and determined that the problem is with my mic jack. For instance..the other day I shot an interview and the audio was fine. I used ac power and a Rhode video mic. I moved the camera into another room and shot another interview using the same setup. The audio had a constant buz...until I zoomed in for a very close-up! Then the buz disappeared.

I cannot hear any audio problems from my headphones. It isn't till I play the tape from a deck hooked up to a good sound system that I can hear the results. I've done test after test with various mics but cannot isolate what is causint the bad audio and what makes the audio okay! Could a technician figure this out...even if he checked it out on a "good" day?

Also - If I were to find the xlr adapters for this camera - could I expect the same problem? I know they connect to a dedicated port but would the audio problem carry over to the xlr adapters?

K

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  • Kay Anderson Jan 31, 2008

    Joe -

    Thanks for the quick response. A few questions...Is thee a way to actually diagnose the problem? I mean, can a techniciat say for sure that the problem is in the jack or not?



    Is it fixable? If so...can your recommend a place in the Toledo, Ohio area. I see you're in Memphis.



    I'm not using the xlr adapters because I can't find them anymore. If I could find them, and I had one of the audio problems you suggest, would the sound from the xlr's be just as inconsistant?



    It's possible that this camera had been dropped more than 1 time. The person I bought it from left a tape inside...showing him and his buddies doing "xtreme sports" skateboarding and whatnot!



    Kay

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This camera has a history of problems with the audio encode/decode process IC which causes loss of audio input and distorted audio processing. Most noticeable is the loss of audio packets in playback of pre-recorded material.
If your problem is in the mic. jack I believe you would be hearing the buzz while monitoring with the headphones. Also, if the camera has been dropped, the audio I/O board connector can break away from the main board causing a bad ground loop or loss of phantom power, this is a common problem.

Hope this helps in some way,

Joe Weibel
customelectronics.org

Posted on Jan 31, 2008

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