Post Reply 
HP-67 stuck in scientific (DSP 0) mode
07-17-2020, 09:43 PM
Post: #4
RE: HP-67 stuck in scientific (DSP 0) mode
Switching the calculator off should perform a hard reset on your calculator (no continuous memory). If after switching off the behaviour persists then most probably your PCB is defective.

You can get a replacement PCB from Teenix (http://www.teenix.org) that will most probably make it fully funcional again (plus some extra functionalities). It is a drop-in replacement without need for soldering. I performed the swap a couple months ago and am quite happy with the results.


11C 12C 15C 17BII 18C 19BII 21 25 27S 28S 32E 32S 32SII 33C 33S 34S 35S 38C 39gs 39GII 40gs 41C 41CV 41CX 42S 45 48G+ 48GII 49G 49G+ 50 67 71B 97
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
RE: HP-67 stuck in scientific (DSP 0) mode - Moggul - 07-17-2020 09:43 PM



User(s) browsing this thread: 1 Guest(s)