Testing The BKM-129x Replacement Board

I was able to test an open-source project that provides a homebrew replacement for the Sony BKM-129x RGB/YPbPr input card used in select Sony BVM monitors:  The BVM D9H & D14H and the PVM 9L2. & 20L5 (secondary slot).  This card was made by reverse-engineering the original and using an Arduino Nano to emulate the software.  I tested both RGB and Component Video signals across all supported resolutions (240p-1080i) and all worked perfectly without adding any interference or lag.

More info on the project and an interview with the creator is below.

Main Website:

And here’s the previous project mentioned at the beginning of the video:

JVC Monitor SCART Input Card:
JVC Monitor BNC Input Card:

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