Omnimaga

Calculator Community => Other Calculators => Topic started by: Nathan Jahreis on June 19, 2012, 07:26:09 pm

Title: LEDs inside TI-30xIIs
Post by: Nathan Jahreis on June 19, 2012, 07:26:09 pm

Well I was bored today so I took apart my TI-30xIIs and to my surprise I found 2 LEDs inside!  I don't know if this is new to anyone but I was kinda thrown off.  One goes on and off with the calc and the other only turns on when the solar panel is working.

(https://lh5.googleusercontent.com/-dwWrOy-SYvE/T-EHzBgv8pI/AAAAAAAAAQk/l76mTdrMMaQ/s640/035.JPG)

(https://lh6.googleusercontent.com/-gCYVfya4SLA/T-EHkZtTzDI/AAAAAAAAAQc/J18Ya6vuv6Q/s640/032.JPG)

Title: Re: LEDs inside TI-30xIIs
Post by: Levak on June 19, 2012, 08:01:36 pm

Maybe a debug led used to check with a probe during manufacturation if the calculator works ?


PS : I love the macro photo =)

Title: Re: LEDs inside TI-30xIIs
Post by: DJ Omnimaga on June 19, 2012, 10:57:30 pm

Interesting stuff. :)

Title: Re: LEDs inside TI-30xIIs
Post by: thepenguin77 on June 19, 2012, 11:19:10 pm

I've always wondered what those things do. I'm glad you actually got them to turn on.

This bothered me bad enough that I actually asked it on yahoo answers lol. (Though I can't find the link :()

In other news, connecting a 9V battery to them makes them explode. The calculator still works though.

Title: Re: LEDs inside TI-30xIIs
Post by: aeTIos on June 20, 2012, 03:00:00 am

those leds have a pretty much weird shape O.o