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tec ma-1400 cash register lights on but keys dont work?

how to change date Tec MA 1350?

i got a used tec ma 1350 when i plug all light are on can't do anything ?

Tec 1450 -1?

The Journal roll keeps whizzing round?

How to programme new departments on a TEC ma1450?

TEC MA-1450-1 Series Shutoff?

how to fix my tec cash register ma-1050-1?

How can I fix my register (Tec MA-1600?

After a power failure how can I restart a TEC MA 1400?

I have a Tec MA 1350, once any button is pressed it constantly bleeps ?

Tec Ma1400 journal tape?

Tec ma-1350?

how can i make my old TEC MA-1450 work?

My cash reg tec 1450 shows error ?

slip light is on and cash register won't work?

Transformer down primary windings?

TEC MA 1350 cash register?

TEC electronic cash register MA-516-100 series?

tec ma 1450?

Cash register TEC MA - 1350?

Tec Ma1400 - receipt side paper won't cut-?

Change tax rate on Tec MA-1450 cash register?

I have a TEC MA-315 cash register given to me. How do i reprogramm the dept?

Tec Ma1400 continous buzzing?

how to get 2 decimal places on tec ma-1350?

Tec Ma1400 service key?

Tec Ma1400 half clear?

manual to reset tax button on TEC MA-132 cash register?

tec 1450?