Welcome to EpoS Wizard!
Hi all, I've inherited a Towa SX 690 and have received the operator and programming manuals from the manufacturer, but I'm still having problems with the programming. Basically, I have managed to program the first 60 buttons but from button 61 on, the old data is still there and won't go away. If anyone has any ideas, I would be most grateful.
Thanks in advance
Nick 
i'm trying hard to be constructive - but .....nope - I'm going to be opinionated instead - id scrap it and get something that doesn't require a degree in rocket science to operate!...
I talk "till speak" but Geller has an unintelligible accent!
having said that, try here https://www.towa-gt.com/faq_sx690.html
the very best of luck my friend
The sx690 is difficult to program without using software, esp the keyboard.
The buttons 61+ could be departments or higher plu numbers.
You need to know what the buttons are before you can rectify.
Check the department programming - you should be able to print a list. Same with plu's.
