Question about ATN Night Vision Night Storm-3 Gen.3 Monocular black
The monocular was working. Two days later the power light would turn on but no image, black. The next day I tried it and it turned on and worked like normal. Once I turned it off it would not show any image but power light on. I noticed the main switch felt funny so I investigated by pulling off rubber cover and it seemed to be failing. I sent it back to atn and they said the tube was shot but it didn't seem like they even looked, and this was after many b.s. Customer service phone calls. I had them fix the switch which resulted in a new casing. My question is does it make sense that the tube would go completely out without any signs of darkening? It seemed like an electrical connection problem to me. Is it something I can fix, I am handy with electronics.
On any tv's pc, any thing that you don't want fried. The powder surge is what kills them powder going on and off buy powder surgers on every thing and you will never have that problem.
Posted on May 08, 2014
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Posted on Jan 02, 2017
SOURCE: Nite Vision scope
Unscrew front lens front of intensifier tube should have an even bronze tinted coating on glass if it is grey and blotchy the tube is degassed. common fault with this model nightvision
Posted on May 31, 2008
SOURCE: problem with my atn 390 nv scope
Observe the IR illuminator with a digital camera and see if it if fluctuating in output brightness. If that is OK, the problem may be in the HV circuit. They are both easy to fix if the person has some experience.
Posted on Nov 29, 2008
SOURCE: manual focus on atn 258
A seized focus control should be able to be repaired by most optics repairers. It is a simple job and doesn't require the removal of the image intensifier. They should be made aware though that the image intensifer needs to be opened in a "cleanroom" envrionment and should be purged with nitrogen once repair is completed
Posted on Mar 25, 2009
dear fixya team , thankyou for your mail, as this is a one off problem and will not purchase any other products from the usa, i see no point in joining here but just thought you might be able to help. as yet there is still no reply from atn sales dpt with reference to a refund or even to confirm they recieved unit in post. you would have thought a big usa company like atn would have better customer service. i took time to view many night rifle scopes and chose a mk258 looking at reviews and the company warranty. i think now was a bad mistake and will send all details to a uk air gun magazine to warn other uk airgunners about buying direct from this company and buy in uk. regards gordon harman
Posted on Dec 30, 2009
Hello, it has a none functioning image intensifier tube, or shorted ccfl. All the electronic components are manufactured in Russia. Does this let you know what wrong with you ATN MK238 scope now...it's cheap. I don't fix these ATN MK-258 anymore, it to hard to find parts. ATN is no help, they won't sell parts. It will have to be sent to ATN for repairs at approx. $200+ for repairs. I do have a couple of Russian image intensifier tubes, that work. The last MK238 I repaired, I had to build a ccfl (cold cathode flourscent Lamp) inverter, replace the coil and voltage multiplier, and fit in a confine space with insulation from electric arcing.
Here is infor for you. The ccfl can be purchased. They are companys that will make you a voltage multipliers. So, here is information: voltage to ccfl (6 volts) then the voltage goes in the inverter
to convert it switching DC voltage (5.5 volts). Then the coil (transformer) step it ot about 930 voltage to the voltage multiplier (which has four stages---the first stage with double the voltage to 1860 volt to the second stage which double it, then third stage which double it, then finally to fourth stage which doubles the third stage to about 15KV (hight voltage here, it will bit ya here, but no current--amps.) this will the cathode on iit, then light up the tube 18mm film that is coated--it will turn green)
Now, this the simplies way of tube operation, it more complex than that. The power supply for this Russian image inten. tube is sealed in dielectric jell, and the voltage multiplier is sealed in epoxy with the tube are none repairable.
There are quit a few other NV companies, that use Russian tubes and electronic. They cheap but functional. The bottom line here is the profit. Don't get me wrong here. There a few Russian compies that make some very good gen 2 tubes. If you can replace the tube will gen 2 tubes and powere supply. I hope this helps, Richard.
Posted on Aug 01, 2011
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