wrote:

Replaced DM board. Seems to be resolved.

I have the same problem with my WD-52725, but I haven't been able to
figure out how to remove the DM board. If you could point me in the
right direction I would be very grateful.

I've removed the back cover and the rear plate, and I removed the
screws holding the chassis in place so I can slide the chassis back.

What's the next step?