HP-34C Won’t Power Up

[stevenme]

(02-25-2021 02:22 AM)mfleming Wrote:  

(02-24-2021 10:47 PM)stevenme Wrote:  Was it that I connected the AC charger without the battery installed that killed it? Just wondering for future reference. Thanks!

Pardon my tongue in cheek reference to Star Trek, The Original Series (ST:TOS). Yes indeed, your ACT chip is likely fried. Some models in that condition offered for parts on The Bay do show some lit LEDs, so there may be an off chance that a loose connection saved your electronics. It's worth a try if you have the case opened to trace back from the battery contacts to some exposed trace internally. I don't know enough to help but others might.

Good luck.

Hard to believe they are so fragile. I’ve had the case half way open, but I haven’t had the nerve to pry open the front. Even though it’s dead, cosmetically it’s in good shape, so I’d hate to completely destroy it!

Other than the upgrade kit I suppose the only way to fix it is with the guts of another working 34c, since the parts are no longer stocked.