How to mend Samsung Cash Register No Power

my samsung er-150 cash register makes a high pitched alarm sound on switch ?

Memory All Clear a Samsung ER-4615?

Samsung ER 4915 not working?

cash registers ER-4615?

closed message? samsung er-4615?

How do I clear an error code pp?

can non-upc codes function be disabled for samsung sps 520 register?

My Samsung ER 650 screen is black?

Why does the error code E1 show on screen and high pitched?

How can i clear extra lines appearing on screen?

how can i fix my Samsung ER290 cash register?

Operator's Manual - Samsung ER-290 Electronic Cash Register?

Samsung er4615 closed?

Cash Register?

Samsung er290?

On screen is 'PCo' and nothing is functioning, how to correct?

How do I mend Samsung ER4615?

samsung er290 cash register?

samsung er150?

Samsung ER-5100?

clear E3 error code on samsung er-290 cash register?

I need to reset my Samsung Cash Register?

Battery?

I can't open the drawer. It has a squeal like a key is stuck?

does not print full amount on till entry?

Paper in my Samsung ER4915 jammed. Now it doesn't work at all?

change tax for er4940 samsung?

How do I get the register key to turn to "P" for updating the sales tax?

fixing key issues on a samsung ER 5100?

samsung 4615 cash reg ?