WP 34S will not turn on

[BarryMead]

(12-06-2017 12:08 PM)jebem Wrote:  If you measured currents in the hundreds of milliampere, then definitely one or more components are defective in the calculator. Those current values are like a short circuit for any CR2032 coin cell battery.

I believe jebem is right. If I remember correctly the HP-30B will have a few micro amps of current draw after pressing reset, but only about 8 mA after you press
the "ON" button if the boot loader is intact. I have never seen current draws as high as you report even on calculators with corrupted boot loaders. It is entirely possible that your calculator is damaged beyond any means of repair even with a JTAG programmer. I can't imagine any "NORMAL" state the calculator could get into that would draw 130 mA let alone 730 mA. Perhaps you should ignore my advice and listen to jebem (buy a new calculator). It may be more trouble than it is worth to try to repair or recover your old one.