Need help with Tajima error code 3D6

Hi,
Looking for help with Tajima error code 3D6. My single head machine will not start up even with the program disk. Saw online that it might be a CPU or IDM battery. Any idea where to get these?

Thanks,

Joan

You can e-mail me @ PinsEmbroidery@live.com

Location: 
United States

What is the model of single head?
I have a TMEX with the same problem
Check on line. Mine is a Panasonic VL2330 battery. It has to be soldered onto the CPU board.

Chuck