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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Composite video output to "AV in" input?
Hello--I need to take an industrial (Dage/MTI) infrared camera
composite video output signal and get it to play properly on a little Casio EV-570 LCD TV. The Casio machine has an "A/V in" 3.5 mm phono type receptacle on it, but I have to say, I don't know exactly what the heck this input is. I can say that things don't work by simply connecting the camera composite video signal to this input. Can anyone tell me just what the "A/V in" format is, and can you direct me to some simple converter on the market? The Casio has an external antenna input, too, so that might be workable, too. I know lasers, but I confess I don't know this video signal stuff! Thanks-- Charley Hale Coherent Technologies, Inc. Louisville CO work email |
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Composite video output to "AV in" input?
If your camera has a compatible video output to the TV unit, you should be
able to order the adaptor from any Casio dealer who sells these sets. I believe that Radio Shack can have the adaptor for you. If you are in the US, the camera and TV should be the NTSC standard. For Europe, most places are using the PAL standard. -- Greetings, Jerry Greenberg GLG Technologies GLG ========================================= WebPage http://www.zoom-one.com Electronics http://www.zoom-one.com/electron.htm ========================================= "CHale" wrote in message m... Hello--I need to take an industrial (Dage/MTI) infrared camera composite video output signal and get it to play properly on a little Casio EV-570 LCD TV. The Casio machine has an "A/V in" 3.5 mm phono type receptacle on it, but I have to say, I don't know exactly what the heck this input is. I can say that things don't work by simply connecting the camera composite video signal to this input. Can anyone tell me just what the "A/V in" format is, and can you direct me to some simple converter on the market? The Casio has an external antenna input, too, so that might be workable, too. I know lasers, but I confess I don't know this video signal stuff! Thanks-- Charley Hale Coherent Technologies, Inc. Louisville CO work email |
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Composite video output to "AV in" input?
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Composite video output to "AV in" input?
A BNC adaptor will not help as it is only a single conductor with a ground.
(or 2 conductor) I'm sure there is an adaptor out there somewhere, but have never seen one. You could easily make one yourself. Buy a Male 3.5mm(mini) solder type connector (very cheap) and 2 RCA male solder type, also some 2 conductor cable with shielding. at the camera end of the cable take one lead and split the shield and solder it to a RCA male adaptor. Make sure the shield is used as ground (duh) The camera likely only has a mono audio output, so do the same with the other conductor and the other half of the split shield. At the 3.5 end (this is where you will have to experiment) Solder one connector to "tip" the other to "ring" and the shield to the ground.(shield). If you here the nasty buzz again, the reveres the tip and ring and it should work. "CHale" wrote in message om... Mark wrote in message uth.net... In article , says... Hello--I need to take an industrial (Dage/MTI) infrared camera composite video output signal and get it to play properly on a little Casio EV-570 LCD TV. The Casio machine has an "A/V in" 3.5 mm phono type receptacle on it, but I have to say, I don't know exactly what the heck this input is. I can say that things don't work by simply connecting the camera composite video signal to this input. Can anyone tell me just what the "A/V in" format is, and can you direct me to some simple converter on the market? You were on the right track. The A/V input is a 3 conductor (sometimes called "stereo") mini jack. It will have composite video, mono audio, and common ground. The only question (easily answered thru trial and error) is whether the tip or ring is the video. Five minutes of experimentation should put you in business, and don't worry, you won't hurt anything by hooking it up "wrong". Thanks Mark. So, composite video is there in the "A/V" format, is it? Cool. When I hook up the camera composite video (1 V p-p, by the way, per the camera manual) output to the Casio's A/V input via a simple BNC/3.5 mm phono adapter, I get a nasty buzz emitted from the Casio and no picture at all. If the leads are simply not matched up right via the little phono adapter, then I can imagine some sort of audio symptom like this might emerge! I'll sure look at that ASAP. Thanks-- Charley |
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Composite video output to "AV in" input?
"red" wrote in message ...
A BNC adaptor will not help as it is only a single conductor with a ground. (or 2 conductor) I'm sure there is an adaptor out there somewhere, but have never seen one. You could easily make one yourself. Buy a Male 3.5mm(mini) solder type connector (very cheap) and 2 RCA male solder type, also some 2 conductor cable with shielding. at the camera end of the cable take one lead and split the shield and solder it to a RCA male adaptor. Make sure the shield is used as ground (duh) The camera likely only has a mono audio output, so do the same with the other conductor and the other half of the split shield. At the 3.5 end (this is where you will have to experiment) Solder one connector to "tip" the other to "ring" and the shield to the ground.(shield). If you here the nasty buzz again, the reveres the tip and ring and it should work. "CHale" wrote in message om... Mark wrote in message uth.net... In article , says... Hello--I need to take an industrial (Dage/MTI) infrared camera composite video output signal and get it to play properly on a little Casio EV-570 LCD TV. The Casio machine has an "A/V in" 3.5 mm phono type receptacle on it, but I have to say, I don't know exactly what the heck this input is. I can say that things don't work by simply connecting the camera composite video signal to this input. Can anyone tell me just what the "A/V in" format is, and can you direct me to some simple converter on the market? You were on the right track. The A/V input is a 3 conductor (sometimes called "stereo") mini jack. It will have composite video, mono audio, and common ground. The only question (easily answered thru trial and error) is whether the tip or ring is the video. Five minutes of experimentation should put you in business, and don't worry, you won't hurt anything by hooking it up "wrong". Thanks Mark. So, composite video is there in the "A/V" format, is it? Cool. When I hook up the camera composite video (1 V p-p, by the way, per the camera manual) output to the Casio's A/V input via a simple BNC/3.5 mm phono adapter, I get a nasty buzz emitted from the Casio and no picture at all. If the leads are simply not matched up right via the little phono adapter, then I can imagine some sort of audio symptom like this might emerge! I'll sure look at that ASAP. Thanks-- Charley Hello all, This all worked oput very nicely. I determined that the middle contact on the 3-contact 3.5 mm phono plug was the composite video in contact; bottom one ground; top/end contact monaural audio (the IR camera has no audio out, so this wire/contact isn't used). Made a BNC/3.5 mm plug adaptor cable and plugged it in; it works great now. Thanks--Charley Hale |
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