Connect HDMI Driver Board in A1311 iMac 2011 with internal PSU + Audio

Hi,

I want to use my broken iMac as a HDMI monitor and use the PSU and the internal speakers along with it.

I have only the image below available for the wiring. Any idea how I can connect the PSU and the speakers safely with this board?

Block Image

Block Image

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crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0