How do I know if I have the 32 prog or the 120 prog OB-Xa?
The dead giveaway is that the 120 program version usually has a big badge on it, on the right side of the top panel saying 120 programs, so if you aren’t sure, you’ve probably got the 32 program model. However to be sure, try the following test as some earlier models have been updated to handle 120 progs or the badge might have fallen off. To access more progs on the 120 version, it also allows you to press combinations of the A B C D buttons. (and the multiple leds stay lit) On 32 prog model you can only select either A or B or C or D – ie A1, B1 etc. On 120 prog model you can also select AB1 AC1 ABC1 ABCD1 etc etc. You have to press the letter keys at the same time as each other. You must press the number key afterwards. So try pressing A & B at the same time and see if the A and B leds both stay lit. If they do, it’s a 120 version.
