Hi
I just picked up a 1984 model 41CX and there are a few things that are not working. If anyone can help it would be great, everything is working properly except:
1. The USER key needs a firm press to work (using SF27 instead)
2. The ON key won't work at all (remove batteries and press any key gets it started) - I haven't tried using contact cleaner or this like just yet... (not sure but it may be stuck ON)
3. Running CATALOG 5 (lists all alarms that are set) freezes the display (with 'CAT 5' showing)but after I remove batteries and press any key to restart the calc works fine - well everyting except CAT 5.
4. Time and stopwatch functions seem to work fine, but alarms might be a problem as the display goes blank when I execute any xyzalm command. By removing batteries and pressing any key the calc restarts fine but loses the time so its hard to check xyzalm.
I have already repaired the slightly cracked posts and seem to have good contact between the keyboard-CPU and keyboard-display.
The reason I think the on/off key might be stuck ON is that my fully working 41C doesn't restart by pressing any key after putting the batteries in...
thanks,
Russell