Yukon Ranger 5 x 42 night vision goggles just stopped working, I put in new batteries, but when I press the ON button the on light, which is red, just flashes maybe 10 times and then all goes black. ???

14 CFR 61.1 (b) (12) and (13) Definitions-Night vision goggles and operations. 14 CFR 61.31 (k) Additional training required for night vision goggle operations. 14 CFR 61.51 (k) Logging night vision goggle time. 14 CFR 61.57 (f) Night vision goggle operating experience. 14 CFR 61.57 (g) Night vision goggle proficiency check. 14 CFR 61.195 (k) Training for night vision goggle operations. 14 CFR 91.205 (h) Instrument and equipment requirements for night vision goggle operations.

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http://main.yukonopticsglobal.com/ranger-5x42-digital-night-vision.html

It could be a lot of things; such as, faulty wire connection, cold solder joint, HV voltage arcing, corroded battery terminals. intermittent short in the switches. If it stop work, try gently shaking it several times, push the on/off button several times. make sure the battery makes a good connection in the battery compartment. Wrap it up and put it in your freezer for a few hours. There are electronic components that might get hot/warm and by cooling them down they will start working again. I don't know who manufactured Night Owl NOTG1 Goggles or who manufacture the components. Rissia manufactures make a lot of night vision devises and components. Also, there are a lot of countries in world that manufacture NV devises, and their parts. GB...stewbison

Hello, You should have two switches, one for on/off and the other for IR intensifier (red). There should be or not two LED one green to indicate on/off--no green LED it off, if the green LED glows green it on. The same with IR luminator, red is glowing the IR is on, if not glowing red, it off.

Make sure you have new batteries and make sure that the polaity is correct---positive +,
negative -.

Push the on button, if you push the right button the green LED will glow, then push IR button. Put you hand in front of the monocular and see if there is a red glow on the palm of you hand, if there is then the IR is on. Never look into the IR lens. Now you can look through the eye piece.

Now, if there no green tent inside of the monocular then there are other problems with you NV devise.

Never, and I mean NEVER look at bright light at night or in the daylight. This will destroy the image tube. That is one reason why they are call night vision....Only for viewing in the dark. stewbison

Hello. The red light is the IR (infrarad luminator) this inhance the night vision capabilities of the scope, monocular. Do not look directlly into the IR tube, The Paramount Moonlight has gone to the land of the Red Star. The scope contract is up. it junk, to expensive to repair. stewbison

Hello, have you or someone else pointed this night vision devise at bright lights, street lights, head lights. If so, maybe the damage has/hasn't alread been done. STOP. This PVS-7 goggles with ITT image tube with generation 2 or 2+ or possibly generation 3 tube. The devise is an American made unit, and the best in the world. Nobody can compete with the USA on NV. They sat the standards on Night Vision.

Have you replace the 6 volt battery? Get the goggle in a darken room then turn the switch on.
see if the 25mm plate will turn green and stay on. But first replace that battery.
Therefore, if this test works, then never and I mean never shine NV devises into bright lights, it will destroy them every time.

PS. send me another message and let see what happen. stewbison

It needs a new IR illuminator bulb or LED...stewbison

Hello, there two things that can bad. One is the oscilator with voltage multiplier or the image intensifier tube. Send to Morrison Optics Co. GB....stewbison

Define 'clear'.
Is it blurry? Focus the scope or clean the lenses.
Is it distorted? Don't know how to fix. Especially if the lens is cracked/scratched etc.
Is it dark/snowy? Put fresh batteries in.
Do you see black spots in the tube? Don't worry, certain amount of these are quite acceptable.
Anyway: It's a night vision for pete's sake. The picture won't ever be like the one on normal binoculars.