Author Topic: Semi-broken Nspire Touchpad calculator  (Read 4273 times)

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Offline lkj

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Semi-broken Nspire Touchpad calculator
« on: August 15, 2013, 10:44:18 am »
I have a TI Nspire CAS Touchpad calculator which sometimes works normally but sometimes seems like it's dead (doesn't do anything when ON is pressed). Sometimes the calculator also makes strange noises instead of starting up when I switch it on, but after removing a battery it works normally again.
The keypad and the battery aren't the problem, I already changed them.

Attached is a recording of the noise it sometimes makes.

Does anyone have an idea if I can somehow fix it, or what is broken?

Offline ElementCoder

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Re: Semi-broken Nspire Touchpad calculator
« Reply #1 on: August 15, 2013, 10:49:19 am »
That sound make me think of something like a shortcircuit, I have no idea what could be wrong though. I hope it can be fixed :(

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Offline Jim Bauwens

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Re: Semi-broken Nspire Touchpad calculator
« Reply #2 on: August 15, 2013, 12:13:54 pm »
I would open it up and see if there are any sign of a shortcircuit or damage.

Offline Streetwalrus

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Re: Semi-broken Nspire Touchpad calculator
« Reply #3 on: August 15, 2013, 12:24:44 pm »
I would open it up and see if there are any sign of a shortcircuit or damage.
Yeah that. ;)

Offline lkj

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Re: Semi-broken Nspire Touchpad calculator
« Reply #4 on: August 15, 2013, 01:33:47 pm »
I've already done that, but nothing looked much different than in a working Nspire Touchpad.
On an unrelated note, it seems to be an older hardware revision than the one that still works, even though they were bought together.

That sound make me think of something like a shortcircuit, I have no idea what could be wrong though. I hope it can be fixed :(
It made me more of think of the sound an NXT makes when it's in firmware update mode. More the sound of a buzzer than something produced by accident.

Offline Jim Bauwens

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Re: Semi-broken Nspire Touchpad calculator
« Reply #5 on: August 15, 2013, 03:54:51 pm »
The TI-Nspire doesn't have any buzzer, so it must be something malfunctioning. Could you try connecting your Nspire to the batteries while it's open? Maybe you could identify the component/location where the sound is coming from.

Offline lkj

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Re: Semi-broken Nspire Touchpad calculator
« Reply #6 on: August 15, 2013, 06:22:20 pm »
Right now the noise is hardly noticeable, I can only tell it's coming from the mainboard and not the screenboard. If it gets louder again I may know more precisely.

Offline DJ Omnimaga

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Re: Semi-broken Nspire Touchpad calculator
« Reply #7 on: August 15, 2013, 11:35:07 pm »
This seems quite bad. In any case I would try to avoid turning it ON as much as possible, in case it short-circuits the battery. That kind of battery burns rather violently when it's the case and it could cause a fire or something and the smoke getting out of the battery is very toxic.