Hi guys, I have a problem with my fathsark dominator v3. I connect the battery and nothing happens. No display no beeping nothing. I dont know what to do please help me.

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By the way yes the battery is charged and i have put the antennas on

Before looking any further, have you measured the output voltage from the barrel connector of the battery with a multimeter to double-check that it is actually producing voltage? If so then what voltage are you getting from it?

Yes both cells of the battery give 4,2 volt each if that is what you mean

(06-Apr-2021, 12:02 PM)panosth4 Wrote: Yes both cells of the battery give 4,2 volt each if that is what you mean

No, I don't mean the individual battery cells. I mean what voltage are you getting from the barrel connector itself? Put one of your multimeter leads probles into the hole of the barrel connector and the other probe onto the side. What voltage reading do you get?

Is there any other way to see that i get from the connector bcs i dont have a multimeter

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Is there any other way to see the voltage that i get from the connector bcs i dont have a multimeter

but im pretty sure its not the battery bcs i have tried it with some other goggles and it worked

and if it was the connector that had the problem could the battery be fixed or should i just get a new batttery

The cable with the barrel connector on is a known weak point on the battery case. It's possible it has an intermittent connection due to a broken wire inside the cable. Make sure that definitely isn't the case by measuring the voltage from the barrel connector while wiggling the cable about. You should get a constant ~8.4V with two fully charged batteries in the case.

I made a tutorial on how to fix. look back in my threads it’s the 3rd one I wrote. I’d post it here for you but do not know how to. I need to learn that. It can still be bad even if it works sometimes. Do not use the battery case until you get it fixed or replaced. Search for “fat shark barrel connector”.

I bet is the barrel connector. I gone thru like 3 Fatshark battery packs.

sorry for not responding I checked the battery and its ok and works fine with other goggles

i also opened my goggles and they seemed ok no smoke nothing smelled like it was burnt

In that case something on the power board has probably just gone bad. Check the solder joints around the barrel connector socket for any cracks or to see if it has come away from the board. Also check any cables plugged into the board. Failing that, FatShark is renowned for having excellent aftersales customer service with service & repair centres on most of the big continents, so I would contact FatShark support and then get them sent to a repair centre.

i cant send them to fathsark because i have already sent them 1 time
so im not allowed for more

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should i buy a new power board and install it or not?

(06-Apr-2021, 04:42 PM)panosth4 Wrote: i cant send them to fathsark because i have already sent them 1 time
so im not allowed for more

I'm not saying it any repair will be free, and in any case your Dominator V3's will be well out of warranty by now because those are now quite an old model of goggle. FatShark offer repairs for all of the goggles they've sold over the years. You will need to pay for any repair but FatShark repair prices are usually very reasonable.