buttons that don't register well

[tgray]

My 2 button misses a few presses now and then, particularly if I don't hit it just right or if I am doing multiple quick entries. I know others have had issues with other buttons.

Is this something that gets better with time and usage, or should I be popping the calculator open to do some cleaning?

[Michael]

Is this something that gets better with time and usage, or should I be popping the calculator open to do some cleaning?

I'm not sure how fast this could get better on it's own.
If you're comfortable with the following procedure, this will help:

• open the calculator
• open the latch of the LCD connector and release the LCD flex ribbon
• unscrew the two inner screws and remove the electronic board
• lift up the foil partially and clean the contact area and the metal domes of the affected buttons. Use alcohol, acetone or nail polish remover
• assemble the calculator and test it

[gruensucher]

gelöscht!

[Walter]

Thomas! Thank you for this Tip!

Thomas?? Auf welchen Beitrag beziehst du dich??

[gruensucher]

gelöscht!

[Walter]

Sorry, in my joy, I was Jeck !

Let's see whether Google can translate this (hint: gruensucher meant "jeck").

[Michael]

Please, not use aceton!

I've tried acetone, it's no problem at all.

[gruensucher]

gelöscht!

[Walter]

I do not use acetone, preferably as a Teilereiniger (part-cleaner??).

@gruensucher: grrr gleichfalls! Woher soll ich wissen, was du hier meinst, wenn ich nur lesen kann, was du schreibst? Irgendwie widerspricht das dem, was du um 20:29 Uhr geschrieben hast. Oh, die Welt ist voller Rätsel!

Trying to find out what was really meant by gruensucher. Most probably not what he wrote.

[gruensucher]

gelöscht!