MU100 S/PDIF

[Stefan_L]

I'm about to try and S/PDIF modify my MU100, and as the SW1000XG already has an S/PDIF output so thought i that i could ask if anybody here could check their SW1000XG exactly how the output is connected? Hopefully so does the "XS725" have S/PDIF output already but just not connected... and if unlucky then the S/PDIF signal is coming from any of the two chips related to DSP/PCI gate array :-(

[Cloudschatze]

An intermediary chip, the YM3437C, "Digital Audio Interface Transmitter," converts digital signals from the XS725A00 to S/PDIF format.

[Stefan_L]

Thanks for the info.
Do you have possibility to trace the masterclock pin (pin 2) from the YM3437 to XS725?

[Cloudschatze]

Thanks for the info.
Do you have possibility to trace the masterclock pin (pin 2) from the YM3437 to XS725?

Yes. Let me send you a PM...

[Stefan_L]

Thanks Cloudschatze! Did you get my PM reply BTW?

I have given up atm to S/PDIF mod my MU100 because i have no idea wich "Digital Audio Transmitter" i should use, it need to accept 18-bit serial data and the current one i use for my S/PDIF mods is a DIT4096 and it can't be configured to 18-bit in hardware mode.
I checked the YM3437 docs but could not understand it properly.

BTW did some PCB photos of my MU100 when i opened it:
http://www.ym2149.com/mu100/mu100_pcb_partside.jpg
http://www.ym2149.com/mu100/mu100_pcb_solderside.jpg