Member Avatar for ingridcat

Hey! I have a problem with my Amilo Sa 3650 keyboard. A little tea (no sugar!) was spilt on it and I quickly mopped it up as it wasn't that much liquid. Shortly after, the keyboard keys went crazy (some keys acted like they were being pressed constantly), I waited a few days and now most keys have regained their normal functions, except the arrow keys, and the following keys appear together when typed: qz, tv, ub, 3<, j & space bar (types "j " automatically). Would replacing the keyboard work or could it be a motherboard issue? A USB keyboard works fine and otherwise the laptop doesn't have any other problems. Would be really grateful if anyone has any advice! Thanks.

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For — brief, practical add-on to the replies from and : the behavior you describe (paired characters, keys acting like held presses, arrow keys dead while an external USB keyboard works) usually points at contamination/shorting in the keyboard assembly (membrane/contact matrix) rather than a Windows driver problem. Replacement is a common and reliable fix, but a short, careful triage can sometimes save the keyboard. (ifixit.com)

Immediate triage and a safe clean attempt (in order): power off, unplug and remove the battery; blot excess liquid and leave the machine open to dry for at least 24–48 hours (do not use rice or a hot hairdryer). Test the built‑in keyboard outside Windows (enter BIOS/UEFI at boot) — if keys fail there it’s almost certainly hardware; if they work in BIOS but not in Windows, it could be software/driver. If comfortable opening the laptop, follow the Fujitsu Amilo service manual to remove the keyboard/top case, inspect the rubber membrane and ribbon connector, gently clean sticky residue with a lint‑free swab and high‑purity isopropyl alcohol (90%+), let everything dry thoroughly, then reseat and test. Avoid household cleaners and aggressive heat. (ifixit.com)

If cleaning and reseating the ribbon don’t fix the problem, replacing the keyboard is usually the fastest, cheapest long‑term solution — SA‑3650 keyboards and several compatible part numbers (e.g., V080228AK1, 71GF50182‑10, 71GF5045200, NSK‑F3001 / 9J.N0N82.001) are still sold by parts suppliers; match layout and connector when you buy. If you find corrosion on the motherboard or multiple unrelated failures, stop and get professional water‑damage service — corrosion can spread and cause intermittent faults that a new keyboard won’t cure. (witcomputers.com)

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Member Avatar for Rik_

A replacement keyboard will be your only fix.

Member Avatar for mjdodd

I general I agree with Ric, but I have on 2 occasions spilt liquid onto key boards. If you take the keyboard apart (carefully) then you will find that most keyboards are made of a rubber membrane which has 'tracks' on it and the key actually is a graphite push button the bridges the lines and makes a connection. It is possible that some of you liquid has dried either on the bottom of the push down button (key) or on the tracks and prevents (or conducts) when it shouldn't. Cleaing off is the answer for this type.
If the key board is one where the keys are actual switches it may be possible to do a unsoldering and replacement job but not worth it for the price of a new one!
M

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