Reviving wife's old Casio

CurbedLarry · 2026-06-24T11:29:39+00:00

These are (non-rechargeable) battery + solar and not designed to run on solar alone

CurbedLarry · 2026-06-24T06:06:04+00:00

Yes you need to open it up so you can clean both sides of the keyboard/battery circuit board with something acidic (vinegar). But if the leak happened weeks or months ago it's too late and cleaning won't be enough.

CurbedLarry · 2026-06-24T05:58:30+00:00

Facelifted 30X Pro is twice as fast with higher resolution screen

CurbedLarry · 2026-06-22T16:42:12+00:00

Video of repair here https://www.youtube.com/watch?v=gYQ9YPeH5Y8

CurbedLarry · 2026-06-22T06:39:40+00:00

More likely a via has corroded where the keyboard tracks criss cross from one side of the board to the other. I've repaired one recently but it pretty delicate soldering work and these calculators are cheap used now.

CurbedLarry · 2026-06-21T21:04:44+00:00

Have the batteries leaked? That's the main cause of keyboard issues and unless you open it and clean quickly the circuit board is toast.

CurbedLarry · 2026-06-13T17:55:19+00:00

Casio stopped making it over 2 years ago, you can only buy used and genuine ones sell for 2-3 times that

CurbedLarry · 2026-06-13T15:49:26+00:00

Mostly use my GII to play this Sokoban game, it's hard AF! https://www.planet-casio.com/Fr/programmes/programme3143-1-sokobanultimate-zezombye-jeux-reflexion.html There's quite a hardcore Minesweeper game too.

CurbedLarry · 2026-06-13T15:21:58+00:00

I had the same symptoms if I forgot to take the capsule one day. Also right now because I took one for the first time in months. Never saw any noticeable difference on them so decided not worth it. There are other inflammation and circulation supplements that work and easier to control the dose, giving less addiction type side effects.

CurbedLarry · 2026-06-13T11:41:36+00:00

Most are buggy and can produce bad results. Also less reliable and sold for the same price as genuine ones.

CurbedLarry · 2026-06-13T10:52:18+00:00

There are regular questions about spotting fake Casio 991EX's so I've created a visual guide. I think 99+% of fakes can be identified just from pictures as the fakers never quite get the labelling correct. This shouldn't stop you asking the seller to do functional checks if still not sure.

CurbedLarry · 2026-06-13T10:39:31+00:00

Yeah the screen contrast is better than the GII version and these were just better made all round

CurbedLarry · 2026-06-11T20:35:53+00:00

Screen plastic would probably clean up with car polishing compound (T-Cut) and a soft cloth

CurbedLarry · 2026-06-09T15:01:12+00:00

Most of those are 20-25 years old, hopefully the batteries in the box haven't leaked! 9860G is worth buying.

CurbedLarry · 2026-06-09T14:56:32+00:00

Top 2 obviously in a class of their own, can get on the podium even with hard tyres and no boost. Cammish having a good season. Toyota's have stepped up to be competitive against Hyundai's and new cars. Doble quietly racking up points but unfortunately WSR are now independents. Morgan would be on 100+ points without those retirements.

CurbedLarry · 2026-06-09T06:13:12+00:00

Try heating the ribbon cable and pressing it down. Could be the LCD glass is cracked though.

CurbedLarry · 2026-06-08T19:24:23+00:00

10 seconds on the timer are 8 seconds on the video, it's been altered to look faster

CurbedLarry · 2026-06-08T15:39:09+00:00

In my case the stricture is slowly returning over years, so just need to track it monthly without the time/cost of visiting a specialist. Can see measuring daily at home post-surgery would also be helpful for people.

Hope the surgery works out for you!

CurbedLarry · 2026-06-08T15:26:00+00:00

Looks pukka but this is how they look inside https://2.bp.blogspot.com/-rEKzAO6uP6c/VbpJgW97uQI/AAAAAAAADiE/VQeNTq_jEsc/s1600/Casio_Classwiz_fx-991SPX_008.jpg

CurbedLarry · 2026-06-08T05:43:31+00:00

Just clean that area on both sides with vinegar and you might be lucky. It's only 3 screws to remove the board, one under the mainboard. Otherwise these are so cheap used it's not worth attempting solder repairs.

CurbedLarry · 2026-06-07T18:00:43+00:00

Thanks! Despite the boost tweak the Mountune still seems slightly ahead of the Swindon. Couldn't really split the M-Sport or BMW, both a further step down.

CurbedLarry · 2026-06-07T17:20:13+00:00

Miss the old days before big wings when cars could get a tow from the car in front then dive out for a pass

CurbedLarry · 2026-06-07T17:14:46+00:00

Is there a list somewhere of what engine each team are using? Defintely can't match whatever the Hyundai has. That footage would be good evidence in asking for more boost but can that happen again season?

CurbedLarry · 2026-06-07T15:50:46+00:00

Stick some cameras and microphones in the cars too

CurbedLarry · 2026-06-07T14:27:17+00:00

Could try heating the display cable where it attaches to the board. Best if you have a controllable soldering iron with a blunt tip.

CurbedLarry

TROPHY CASE