McIntosh DA2 Digital Audio Module

Hi folks,

I own a McIntosh C53 Preamp, which is the one with the 'new' DA2 Digital Audio Module.

Recently, the USB port stopped working.
When I plug-in the USB cable to my computer, it is not recognized, essentially, nothing happens.

I did all possible tests:
  • Uninstalled/re-installed the McIntosh driver
  • Tried a different laptop (W10 on both) - issue persists
  • Tried another USB cable, no joy
  • Sound settings in W10 does not show up the McIntosh driver at all.
  • Tested both Coax and Toslink ports, all working good.
  • Factory reset on the C53
I think I can safely conclude that the USB port on the C53 went defective.

I see that McIntosh sells this module and it is readily available in authorized stores

However, everybody seems to recommend to take the amp to an authorized McIntosh technical service.
Now, I could possibly do that, but I would cost me twice the price of the module, because my closest repair center is 700 miles away.
Also, I would end up in leaving them the preamp for approx 4 weeks or more, especially should they have to order the module from McIntosh.

From what I can see, this module is kept in place by 4 screws on the PCB and 2 external ones, plus the connector to the main board.

052-057_Hifi_12_2020-005.jpg


In theory, replacing it should not take more than 30 mins. and it is not a difficult work to do.

It is like a plug & play, but I may be missing something, which is why I came on this forum to ask.

I really want an unbiased opinion.

Certainly, I am wondering why I have to pay more than $1000 to replace a USB port, given that all the rest is working fine.
If the USB only is not working it might be reparable, but at the end, it would cost me the same and many weeks of waiting time before I can get it fixed.

One of the authorized technical services told me they have seen more machines with this same issue, some can be repaired, some others need the module to be replaced..

This is why I am thinking to replace it myself, but I would like to read other experts opinion here, as it seems too easy for me to be true.

Thank you!
Alex