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John, Engineer and electronic enthusiast for more than 12 years.
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My ma 1350 cash registers alarm is on after i switched the

Customer Question

hi my ma 1350 cash registers alarm is on after i switched the tax rate i can't figure out how to turn it off
JA: What's the make/model of your device? How old is it?
Customer: tech ma 1350
JA: How long has this been going on? What troubleshooting have you tried?
Customer: it just started right now when i tried to change the tax
JA: Anything else you want the electronics expert to know before I connect you?
Customer: it beeps in all modes and won't turn off when i press c
Submitted: 6 months ago.
Category: Consumer Electronics
Expert:  Russell H. replied 6 months ago.

Hello! Thank you for contacting; I am Russell H., an Expert here at, and I will do what I can to answer your question as well as it can be answered.

That must be very annoying. My first advice is: turn it Off. If it won't turn Off, unplug it from the power.

And leave it that way for at least 4 hours, or even overnight. When you tried to change the tax rate, it may have gotten a static discharge, enough to necessitate a long rest for the circuitry, to try to allow it to recover.

Let me know how it goes, by and by, please. Thanks.

Customer: replied 6 months ago.
I figured it out! Thanks
Expert:  Russell H. replied 6 months ago.

You're welcome. Thank you for asking your question here at

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