301.013 optical digital surround sound.

[Filo]

Is there a guide for 301.013 receiver? The 301.010 optical upgrade works great but the circuit layout for 013 is a bit different. Anyone's got any ideas? Couldn't find a modification any where.
Thanks.

[Rax]

Where did you find the 310.010 optical upgrade @?

[pgguru]

I found this PDF.... at the bottem it is talking about a optical upgrade but I think it is talking about a 430?
http://www.jtagconnection.com/JTAG_LAYOUTS.pdf