Got the M3 tap and managed to tap some blind holes for reverse mounting of the display pcb. Problem is that I chosen a longer standoff instead as I was in between sizes. I got the 12mm ones instead of the 10mm ones. 12mm is too high, and when I was tightening one of them, it broke! I had to tap 2 other holes to secure the board instead.
This explains why there are 3 screws... supposed to be one on each side... Tightening of the screw has to be done with some prevision. Screwing in by 1/4 turns to ensure that best depression for all the buttons on the faceplate. I also got a push button power switch, but did not wire the AC there. It's more for show. There is a Power switch via remote control. This serves my purpose rather well. Anyways, I am not inclined to wire AC all the way to the front, I would rather keep the AC nearer to the power transformers.
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