Ever wondered about what a graphics tablet’s guts look like? Here’s a peek.
蛋蛋28苹果手机版下载Why do I have my poor Huion opened up here? Because I was a clumsy idiot and spilled coffee on it.
蛋蛋28苹果手机版下载LIKE A COMPLETE DUMBASS.
蛋蛋28苹果手机版下载Ideally, we’d all avoid drinking at our desks. Or have sippy cups or something. But nobody is perfect, and shit happens. In the event that you’re clumsy like me, I humbly present:
☆ﾟ°˖* MORG’S GUIDE TO (HOPEFULLY) RESCUING YOUR GRAPHICS TABLET AFTER YOU SPILL A DRINK ON IT ☆ﾟ°˖* ᕕ( ᐛ )ᕗ
*a screwdriver, preferably from an electronics-geared screwdriver set (my tablet had little Philips-head screws)
蛋蛋28苹果手机版下载*a container to gather your screws so you don’t lose them
蛋蛋28苹果手机版下载*nitrile gloves (the kind your dentist uses)
*isopropyl alcohol (I used 99% concentration; you can use 91% if that’s what you have access to, but it won’t evaporate as quickly)
*eye protection (woodshop glasses, lab goggles, etc)
*cotton swabs / paper towels / an old or cheap toothbrush
Work in a well-ventilated area. Isopropyl alcohol gives off fumes you Do Not Want To Inhale A Lot Of™. If you have any form of lung protection, now is the time to wear it.
Similarly, you don’t want highly-concentrated isopropyl alcohol on your skin. That’s what the gloves are for. You may also want to wear an apron, in case you spill it down your front.
You might cut yourself on plastic / metal edges of your tablet, or have a piece of plastic snap off and try to ping you in the eye. The latter is what the eye protection is for. As for the former: go slow and be careful during disassembly.
If you’re not comfortable with working on electronics, find someone in your circles who is. This procedure is theoretically safe, but if your tablet has a rechargeable battery in it, there runs the risk of electrical shock.
This WILL void your warranty. In an ideal world, you’d only do this if your warranty is expired anyway, like mine is, or else on a tablet you can afford to replace. Once you open up your tablet, the manufacturer / retailer can no longer help you with it.
In short: YOU and YOU ALONE are responsible for your safety, and for the results of your work. I have informed you of the risks, and therefore I am not responsible for any errors you may make. If you screw up and hurt yourself / wreck your tablet / rip a hole in space-time, that’s your problem.
With that all said, let’s hop to it! ☆ﾟ°˖* ᕕ( ᐛ )ᕗ
Step 1: unplug tablet as soon as something spills on it. 蛋蛋28苹果手机版下载Tilt the tablet so the liquid flows AWAY from the hotkeys and USB port; you don’t want that circuitry to pick up any more of the spill than necessary. Drain as much liquid as will flow out of the tablet.
In my case, however, I wasn’t quick enough to get to step 2 while the spill was fresh; I got my tablet apart after the coffee got to dry and leave syrupy residue behind. I shall henceforth refer to this residue as “sticky crap”.
蛋蛋28苹果手机版下载Step 2: Pop the back off the tablet. The screws are likely to be under any rubber feet the tablet may have (as in my case), but they might be exposed, depending on the model. In addition, my tablet had little pressure clips along the sides, holding the panel in; I pried one side open with my screwdriver (although something like a butter / palette knife may have worked better) and pulled the panel off.
Step 3: If your tablet has a battery, unplug it from the circuit board. (If it’s not unpluggable, then your tablet manufacturer is a jerk. Desoldering, unfortunately, is beyond the scope of this guide.)
Step 4: Undo all the screws holding the circuit board in place. At this point, I was faced with a metal plate - likely an RF shield. That will lift off once all the screws are out, and when any tape holding the edges is removed.
Be smarter than I was - take a photo of your assembly BEFORE you start taking out screws, so you know where they all go back. Not all of my tablet’s screw holes had screws in them.
Wipe up any remaining standing liquid with a paper towel as you find it.
蛋蛋28苹果手机版下载Step 5: My metal plate had a plastic sheet between it and the circuit board. They both lifted off easily.
Chances are, depending on the nature of the spill, these metal and plastic sheets will have sticky crap on them. Mine sure did. Apply isopropyl alcohol and scrub off whatever sticky crap has accumulated. Do the same for the back of the circuit board, the big part that corresponds to the active area of your tablet. Let the isopropyl alcohol evaporate.
Step 6: You’ll likely see some foil tape covering up a small part of the board to the side of the active area. Peel that up gently. (Try not to get hairs / lint / etc stuck to it. You can get them off with isopropyl alcohol, but it will reduce the stickiness.) Clean up the sticky crap off the part of the back of the board where the circuitry is. The cotton swabs are invaluable here for a gentler touch.
蛋蛋28苹果手机版下载Step 7: Gently remove the circuit board from the case plastic and set it aside somewhere safe. Clean any sticky crap off the front of the board / the circuitry / in the USB port / the back of the buttons in the case.
Step 8: Examine the plastic case pieces for any sticky crap, and clean it off as needed.
蛋蛋28苹果手机版下载Step 9: Reassemble tablet. Press back down any foil tape you peeled up from the circuitry, as neatly as possible; lay down the circuit board; lay the plastic sheet between the circuit board and the metal sheet; ensure everything lines up with the screw holes; refer to the picture you hopefully took in step 4 so you can remember where all the screws go.
Step 10: Walk away for like 10-15 minutes so any remaining isopropyl alcohol can dissipate.
Step 11: Plug in your tablet and pray.
蛋蛋28苹果手机版下载My tablet has survived 2 courses of this treatment, from 2 different spills, and still works as well as it did before said spills. This is what worked for me; I do not guarantee it will work for every kind of spill, or for everyone who tries this. Your mileage may vary.
Apologies for the dash-eating post. I wrote this from my phone because my internet’s acting up.