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

i got a used tec ma 1350 when i plug it up all the lights light up and nothing works no matter where the key is set some times a error will come across the screen
Bill, December 2018
All lights on a TEC indicates loss of program. Battery is either flat or stuffed (best to have it replaced). Then it will need programming.
The programming manual is a rare beast. Only one I know of is here ...

https://the-checkout-tech.com/manuals/cashregisters/TEC_MA-1350-2_series_programming_manual.html

Registerman, December 2018
link Click here to see other fixes for TEC.