in case anyone has this problem.
it was the tape reader, the tape ready switch should be set to system. not load, in my case it was on load.
How's that sl3 running for you? I'm trying to figure one out.
I heard they're great but hard to learn.
Also noticed when I turn it on, it doesn't repeat where it was, then read it runs off g50. I'll be happy to call you, send you gifts, if you can help me get this beast going.
It's also been fitted with a usb reader through the r232 port and it's not picking it up either. Not sure if I have the parameters correct. I have them set at 9600 baud rate, with 8bit and 2 but stop.