I HAVE FOUND A LOT OF NATIONAL REGISTERS IN MY TIME THAT WERE LOCKED UP/JAMMED UP ( ONE OR EVEN 2 KEYS PRESSED DOWN AT THE SAME TIME) ETC.... THIS PAMPHLET (### WHICH I WROTE AND IS ONLY A COUPLE OF PAGES $$$) WILL TELL YOU THE MOST COMMON WAYS TO UNJAM YOUR 300 CLASS (311, 312, 313, 332, 336, 349, ETC..... ANY REGISTER STARTING WITH A 3 AND THE 700 CLASS THAT IS THE SAME BASIC DESIGN AS THE 300 CLASS) AND THE 400 CLASS ( 442, ETC....... ANY REGISTER STARTING WITH A 4 AND ALSO THE 800 CLASS THAT IS THE SAME BASIC DESIGN AS THE 400 CLASS). I HAVE ONLY 3 PAGES DEVOTED TO EACH THE 300/700 CLASS AND 400/500 CLASS AND IT TELLS YOU A FEW DIFFERENT WAYS TO UNJAM EACH OF THE CLASSES. I WILL SAY I WAS ABLE TO UNJAM 75% OF THE REGISTER I FOUND, THE REST WERE TO DAMAGED. I AM NOT SAYING YOU WILL BE ABLE TO FIX YOUR REGISTER BUT YOU WILL HAVE A PRETTY GOOD CHANCE TO GET IT WORKING. IF IT DOES START WORKING, YOU JUST SAVED YOURSELF HUNDREDS OF DOLLARS AND YOUR REGISTER IS NOW WORTH HUNDREDS MORE. I ALSO SELL ALL THE KEYS TO THESE REGISTERS. THANK YOU FOR VIEWING AND PLEASE SEE MY OTHER sales B/C I DO COMBINE SHIPPING TO SAVE YOU MONEY.

************PLEASE SEE MY OTHER sales WITH REGISTER MANUALS ON "HOW TO USE" AND "REPAIR" YOUR REGISTER**********

E-MAIL ME WITH ANY QUESTIONS YOU MAY HAVE!

PLEASE check out my other NCR sales as there are many other MUST HAVES for any register owner or seller!

THANKS FOR VIEWING

I WILL SHIP USPS PARCEL POSTMAIL.

PAYMENT DUE AT THE END OF sale AND I WILL SHIP NEXT DAY.