ACT available

[PANAMATIK]

(02-13-2015 06:27 PM)Nigel (UK) Wrote:  I have a question. When installing the new ACT is it worth removing the RAM/ROM chips on a HP-25 if they are faulty or even if they are not, so as to reduce battery drain?

Thank you again for this wonderful creation!

Nigel (UK)

What I really cannot know: how many different kinds of chip damage in any calculator can occur. If theoretically one of the RAM/ROM chips have a short, then they must be replaced, but I don't know whether that is a real scenario. Normally, even if they are damaged and don't pull some signal lines high or low, they can be left at their place. I never replaced them in my calculators.

I don't know how much current you will spare, when you remove them, it cannot be too much. Therefore I would not recommend to replace the RAM/ROMs just for reducing battery drain, it will not be worth enough, and you have additional risk to damage some copper trace.

The only reason could be, if you want to sell/give them somebody as spare parts.

Good luck also for your calculator
Bernhard