Help with HP 15c

[edwincool2]

Hi Lyuka,

Thank you for your kind and quick response. I was able to obtain a digital multimeter to follow your procedure. I apologize for this delay.

I have measured the voltage at the golden ends of the battery terminals as 4.74 V. Also the voltage at the other end of the calculator at the tantalum capacitor marked 22 10V is also exactly 4.74 V.

The microinductor labeled 181 just below the battery compartment looks a bit smudged with something or burnt, such that it only reads "18". I measured the resistance at the soldered ends of it and it is reading out 5.6 Ω (on the 200 Ω mode of the multimeter). I think this is visible on the original attached picture, but let me know if you need additional detail that I could photograph.

Do you think it is worth it to replace the tantalum capacitor? Finding out that it could be a defective processor has certainly made me sad. In your opinion do you think there is any hope for this calculator? Please let me know.
Thank you.

P.S. Also thanks to BillBee. I will take special care in ensuring the little springs will not get lost.