AAA battery electrolyte leak in voice recorder—cleaning and preventing further damage

Dear,
I left AAA batteries in the voice recorder and, disaster - as in the subject.

Perhaps the leak reached the components, e.g. I am not sure if the "play" button works properly - for now I have dismantled everything and wiped it dry. Traces only on the plate, from the battery side and corrosion on the internal structure and on the contacts at the lid closing the battery compartment.

Is the detected failure tantamount to gradual destruction of the voice recorder?
Is it possible to somehow preserve the components to better clean them?

That's all for now. I'm going to the newsstand for new batteries and when I turn it, I'll know something else.

Please advise.

Greeting,
Ged

Corrosion will continue, even after wiping. What to do, I already wrote. Use "search". Regards

Hmm, thanks, but trying to find a clue:

Quote:

What to do, I already wrote. Use "search".

have not yielded any result
Kiss,
g

Added after 46 [minutes]:

Does anyone know how to efficiently/effectively find the cryptic post written by: bogdan-pe

Once, in a similar situation, intensive washing helped me - often changed ear buds and distilled water.

Thanks for your good intentions.
Some tips can be found on the subforum https://www.elektroda.pl/rtvforum/topic869416.html
Regards,
Ged

Wash well with rubbing the spilled places with warm soapy water. It is alkaline and neutralizes the acidic electrolyte in the battery. The longer you wash and rinse, the better. It is good to soak the entire plate in soapy warm water for a few hours (if the construction allows it). Finally, dry it well, even for a few days. Solder the flooded soldering points with tin and rosin (because they could get dirty by pickling "cold" solder. Finally, brush the entire board with silicone oil. This will protect against tin oxidation (you can spray with hairspray). And in the future, do not use carbon cells, only alkaline ones ( they will not spill out.) Regards.

Thank you very much for all the advice - I can start working.
cordiality,
Ged

I once repaired a tape recorder for a friend, in which the batteries leaked - so much rust in places that the mechanism was not visible.
I removed the rust mechanically, maybe with petroleum jelly, then whatever was suitable, I covered it with hot paraffin (by heating
transformer soldering iron so that the water evaporates) then I scraped off the paraffin with rust, and so several times - the whole job was
a few days, because there was a short circuit in the motor), finally it was clean and the tape recorder was working, with some slippage, because the belt got dirty.