TI SR-10 calculator not working, how to troubleshoot basic electronics circuits?

Look in the back of the calculator, some TI models have a pin hole to hard reset the calculator.

It seems like you're just starting off. And....

....The best thing you can do is begin hacking away at different buttons until you figure out what certain things do. I guarantee, that you will discover some pretty amazing things within the TI-84.

Compared to other calculators, the TI-84 is pretty user-friendly. Don't be scared.

In my opinion, Texas Instruments' customer service is one of the best in the nation. Call them for specific questions, they're great at the basics but not-so hot at the advanced. Friendly & helpful people, though.

Sorry its not possible with this particular model.
What my teacher in 6th grade did was make it mandatory for all of us to buy ti-30. This may sound drastic but its very cheap (only 10 dollars) and has severed me well for almost 9 years. Its can convert decimals into fractions and do native fraction manipulations.

Try taking all the batteries out for 5 minutes, then place them in right order back again. I know it's a simple solution, but i worked for me. I was so worried that my calculator had short circuited, and that i had to invest in a new. Mine works now.

The last question first. To verify if Texas instruments will send you a new calculator in exchange for the old you have to contact them.
TI Contact Information
TI-Cares Customer Support Contact a TI-Cares Customer Support representative via e-mail or phone to order products, inquire about issues, or ask general questions about TI education technology.

1-800-TI-CARES (800-842-2737)
Monday - Thursday: 8 a.m. - 7 p.m. Central Time
Friday: 10 a.m. - 7 p.m. Central Time Contact TI-Cares Support
TI-Cares Technical Support Our Technical Support Group is trained to answer your technical questions about TI calculators, software, and accessories.

972-917-8324 (This is not a toll-free number)
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Friday: 10 a.m. - 4:30 p.m. Central Time Contact Technical Support
While you are waiting for the eventual arrival of your new calculator, we may try to diagnose the ailing of the old one.

1. Remove the old batteries. Buy a new set of batteries.
2. Prepare the connectivity cables needed to connect the calculator to the computer. Choices are the TI USB silver cable, or the TI Graphlink Black serial cable.
3. From education.ti.com, download the connectivity software compatible with the cable you will be using from this site. In all probability you will need the TI Connect 1.6 for Windows or Mac.
   
4. From education.ti.com, download the latest operating system
5. Install the Ti connectivity software on your computer.
6. Wait for a day then insert the new batteries.
   
7. Turn calculator ON
8. Execute the TI Connect software.
9. Connect calculator to computer.
10. If you have an active Internet connection, click the Updates button on TIConnect main window.
11. The software will download the latest OS and install it on the calculator.
12. If you do not have an active Internet connection, run the TIConnect software.
    
13. Connect calculator and computer. Turn calculator ON
    
14. Drag and drop the OS which you downloaded on the TIConnect main window.
15. The software will attempt to install the OS,

If for some reason this does not work, you can transfer the OS of a working calculator. You will need a cal-to-calc USB miniA to miniB cable or a calc-to-cal I/O cable.

Either battery is dying, or circuit board has gone, or connector cable loose.

You can replace battery by removing 6 screws at back of calculator, but cost of battery is around 40% of buying new TI-30XA for $10 from Amazon, Staples or elsewhere.

I've used TI-30XA's for years, batteries usually last 2-3 years, then I buy new calculator. The one time I tried to replace battery, fading display still problem, so circuit board had gone bad.

So you could try battery replace and may be OK, but also may be waste of time and $$

It depends on what you want to use it for. If you are looking for something that just does basic mathematical calculations, any electronics store has any number of choices.

If you are looking for something to help with higher math (calculus) TI's TI-83 and 84are pretty much the standard.

I actually fixed mine!!!! Mine was acting up too. I found somewhere that the no/slow key response could be due to a short in the I/O socket. I blew into it really hard (you may want to use compressed air, but I didn't have any onhand), and it works perfectly now!!!!!!!!!! I hope this helps.

I love that old, little calculator, the TI-1795+ (not the new one, SV).
Does anyone know where to get any more of these. I'd buy a few,
but they are probably out of production. I've had my three for years
and years and years. They still work fine.

Hi,

You didn't mention how old the calculator was so let me give you a little information to aid you in making a decision. First...solid state electronics don't last forever but a calculator should last a long time if it is not dropped, immersed in water, etc. I have a programmable model that is over 25 years old. Having said that, if the model is still in warranty, that would be the logical solution. If not then you have three opportunities.....the bad meaning pitch it out if you have received fair value from it (I don't know when you purchased it), the expensive (probably more than it would cost to replace) meaning calling around and asking a TV shop (not a computer shop) if they would not mind taking a look at it (some might) or if you happen to know an electronics tech...or (and this works) giving a call to the local junior college and checking to see if the instructor in a basics class might like to fix it (you pay for parts) as a class project, lastly (and this can work) a letter to TI customer service if the product is less than 5 years old saying, "I'm not sure what the mean time between failures is but my son's xyz which I have enclosed failed after approximately xxx hours use. As I am on a limited budget I was wondering if it could be fixed." You might get a response...most folks in Texas are pretty nice and TI is interested in maintaining their reputation. This will cost you a couple of dollars in freight. You, if you check around, can find very inexpensive (very sophisticated) calculators. I would also point out that there are many very sophisticated calculators free on the internet (not quite as handy as you have to use a mouse or the keypad (with some, not all) if you have a computer or the work your son does is also requires a computer. Hope this helps....Tango