Resetting the code

The 7550 has a battery backup (little door on bottom of machine - 2 AA batteries). Remove batteries for a couple of days and the code should disappear. Removing the batteries WILL NOT effect the main memory of the machine - they are just for the backup of any personally designed stitches and memory combinations - not the hard memory of the machine. Periodically these batteries will need to be changed - a message will pop up on the screen to let you know.

Hope this helps (ex-Pfaff employee - GREAT MACHINE!)

I found this solution while looking for something else.
found this solution http://www.cyberport.net/users/milnerwm/FAQ.html
Emergency password deletion Special thanks to Mel Patrick <[email protected]>) for finding a solution to erasing the code lock [page 64-65 "Pfaff Creative Instruction Book", if you do not remember your Pfaff's password or Pfaff self locks. ------- Thu, 14 Jun 2001 SO....I unplugged the machine from the power cord, removed the foot control, and I once again removed the batteries. But this time I left them out for at least 20 minutes. There is some RAM in the machine that holds the P and M memories plus some "preference" info like the codelock sequence. There is a capacitor that stores some electricity from the battery (or the power cord maybe), that enables you to remove all power, change the batteries in a reasonable amount of time and not lose any of the memory stuff. However if you remove the power long enough, the capacitor drains just like a battery and that resets the machine to null. Now as to why this [phantom password] appeared, perhaps that it's because: 1. we removed the power cord for so long 2. the batteries were low (although this doesn't make much sense when I measured them) 3. the machine had a battery "burp"...;-) -- Mel Patrick wCEO Wabbit Wanch Design www.wabbitwanch.com

TURNED MACHINE ON AND LOST ALL HARD MEMORY ON THE MACHINE. CAN THIS BE REPROGRAMMED?