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Sony VX2100 / PD170 / PDX10 Companion
Topics also include Sony's TRV950, VX2000, PD150 & DSR250 family.


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Old April 15th, 2003, 09:49 PM   #1
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Need Adapter Plans

Well, I tried searching the DV Mag website. Very cool, but I could not find the article authored by Mr. Rose that I need. What I am looking for is the plans for an XLR adapter that has the capaisator[sp] that will block the dc voltage coming out of the vx.

Thanks for the help. This is the best site with the best people on the Web!
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Old April 16th, 2003, 12:14 AM   #2
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Took a few seconds to type capacitor into the search box and viola. Had you posted a question jay would have responded quickly'


The proper configuration is

XLR stereo miniplug
1 ---- sleeve
2 --*- tip AND ring
3 ---- sleeve (or tie to pin 1 at the XLR)

* -- If the camera's power is causing distortion in the mic, put a 100 uf / 10 volt capacitor here, + side to miniplug.

http://www.dv.com/forums/showReplies.jhtml?sid=1&fid=3&tid=57500005

Courtesy of Jay Rose at DV.com

As I have written in an other thread, it is cheaper to buy the cable and modify it with a capacitor. Hosatech cables are under $10 at B&H. You will have a hard time finding a 90 degree molded male stereo jack. You use a straight jack and your begging for trouble.

http://www.hosatech.com/audio_cables_index_3.html

look for the XVM-101

http://www.bhphotovideo.com/bh2.sph/FrameWork.class?FNC=ProductActivator__Aproductlist_html___158476___HOSMMRAXF1___REG___CatID=0___SID= F4CC1D73CF0
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Old April 16th, 2003, 09:25 AM   #3
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Thanks

Thanks Bryan! You guys always come through! I tried searching under "XLR" amd "adapter. Dohh! I

Thanks Again!
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Old April 23rd, 2003, 02:32 PM   #4
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blocking capacitor

As Bryan Beasleigh wrote in his post:

* -- If the camera's power is causing distortion in the mic, put a 100 uf / 10 volt capacitor here, + side to miniplug.

From my experience capacitor 100uF is too high for audio signal.
Best capacitance should be betwen 100nF to 1uF.
After I checked service manual for VX2000, microphone circuit is blocked wit 100nF non polarized capacitor.
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Old August 8th, 2003, 03:18 PM   #5
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so, what is the best capacitor to use then for the vx-2000?
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Old August 8th, 2003, 03:25 PM   #6
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someone had their child draw a circuit diagram of this; http://www.audiotheater.com/miniphantom.html this is correct, correct?
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Old August 8th, 2003, 09:47 PM   #7
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Lower value of capacitor will cut-off low frequencies for speech is usualy value 33nF to 47 nF. For wider range of frequencies ( like music frequencies, use 10MF to 47 MF.
100MF and up will not hurt the system, just is becoming to bulky to fit inside any connector.
In my aplication ( preamplifier for microphone) used with VX2000 I used 47MF polarized capacitor 16V tantalum.
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Old August 9th, 2003, 09:40 PM   #8
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"someone had their child draw a circuit diagram of this"
Looks like something i might draw. Not pretty but at least the artist understands the subject matter.
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