My Fatshark HD3’s are not OLED and are equipped with an older Rapid Fire module. I have a bright spot right in the middle FOV that can’t be cleaned away so Im guessing its burnt pixels, also the fan cycles on and off intermittently.
Im pretty sure I can replace the fan if i can get the specs, but I don’t know if the screens can be replaced. Any ideas?

Note: The white spot is from sun damage, explained in a post below and not covered by warranty

access to the fan is by remove the faceplate and remove one screw where the button for the fan is.

my fan controller board went bad, i removed it and does use by direct lipo power now. i like the direkt on off option even more than the default one with timer function (dont know how to name the work of that board)

i would ask about the screen on the fatshark support, maybe theyoffer a replacement for good value for money price - sure the parts would be originalbquality there

I'd be surprised if FatShark have any spare replacement LCD screens for the HD3 goggles because they are probably too old. They don't even seem to have spares for the HDO's (V1's) anymore. You could get lucky though so no harm in reaching out to FatShark support, but don't expect a quick reply because their customer service and response times seems to have gone to  these days, unlike back in the day where their customer service was second to none. You can probably blame the Red Cat buyout for that.

OK, good idea about the fan wiring. The timer is a bit dumb and I have modded mine with an on off button so turning the goggles and fan on and off together would be great. Also simple no cost. May not need fan.
I’ll try Fatshark support and be patient. If the parts are truly unavailable I’ll have to start looking for a used pair of analog goggles. Unless something viable comes along for my CaddX GogglesX…

I'll let you know what Fatshark says...

I looked up the specs for my HD3's and now I know what happened to them. "...sun burn holes in the LCD color filter..." It happened a couple months ago. I let a fellow modeler watch through them while doing a quick LOS test hop. He set them down lenses sunward and they have had a white spot in them ever since. This is specifically not covered by warranty. I remember thinking "oh shoot!" when I went to pick them up.

That's bad luck. I have OCD about putting any of my goggles down or hanging them round my neck. They always either get left up on my forehead or put in my backpack with the screens facing down or the backpack cover zipped up. I guess if you trust someone else with your goggles you are relying on them to do the right thing, assuming they actually know the score. Unfortunately it only takes a few seconds in some strong sunlight to bork the display panels.

Did you get a reply from FatShark support yet?

No reply yet. I should have been more careful. Expensive mistake as they say.

I got a response from Fatshark they are checking stock.

Couple weeks now, nothing, not returning my emails from a few days ago.

I did take apart my HD3's and blasted the lenses with compressed air hoping the spot might be dust, no joy, it must be a burn mark because it doesn't follow the lenses either when adjusted wider or narrower. Amazing to see the insides of these lenses. It makes you realize why they are so expensive. The fan on mine was intermittent and I bypassed the timer circuit, still intermittent! After quite a long search I found that the culprit was the wires going from the Fatshark 18650 battery case (the white one with battery charge status LED's) to the XH plug. An internal failure in a wire, oh brother. It wasn't the plug in case you are wondering, rather fatigue break at the cases exit point. I took apart the battery case and soldered a new XH extension in and it is working fine with the timer function back in the circuit.

(28-Mar-2024, 06:30 PM)husafreak Wrote: Couple weeks now, nothing, not returning my emails from a few days ago.

I did take apart my HD3's and blasted the lenses with compressed air hoping the spot might be dust, no joy, it must be a burn mark because it doesn't follow the lenses either when adjusted wider or narrower. Amazing to see the insides of these lenses. It makes you realize why they are so expensive. The fan on mine was intermittent and I bypassed the timer circuit, still intermittent! After quite a long search I found that the culprit was the wires going from the Fatshark 18650 battery case (the white one with battery charge status LED's) to the XH plug. An internal failure in a wire, oh brother. It wasn't the plug in case you are wondering, rather fatigue break at the cases exit point. I took apart the battery case and soldered a new XH extension in and it is working fine with the timer function back in the circuit.

Yeah. (No) Thanks to Red Cat I think FatShark are now pretty much dead as a company unfortunately.

That's a known failure with the FatShark battery case. The same issue has been reported online by numerous users. I have the LiPo version of the same battery pack with my FatShark HDO (V1) goggles and I had the same failure about 3 years ago which required me to open up the case, cut the fan connector wires back to the break point and then re-solder them to the battery circuit board. That left the external pigtail wire a little on the short side but it was just about OK. A better option is to do away with that plug entirely and do the internal wiring mod which takes power from the power board inside the head tracker bay (behind the pop off cover) and routes it directly to the fan switch, thus bypassing the external socket which means there is then no need for the fan connector from the battery pack to be plugged in.

I also upgraded the standard FatShark fan switch circuit board on mine with the URUAV one which can take up to 3S voltage instead of only 2S on the standard board, and which also has a 3 speed fan function with the ability to turn the fan on an off rather than just a single speed and only an on (not off) option that the standard board has. Oscar has an article about the upgraded fan controller HERE. I think they are now discontinued, so trying to source one might be tricky.

Yup, I saw Oscars post on that but the part no longer exists. Cool how these failures become known to the user group, it's not great but it's interesting, I'm not the first to suffer!