Mik Fans
I got 2 RB750G with no LED PWR indicator.
Reason: The limiting resistor of the PWR LED was dislodge from the placement area between LD301 and LD302. I think this is a cold solder when resistor is heating up.
With luck, i saw the resistor stuck on the rubber pad near the reset hole(not the tact reset but the PCB circle area).
I checked the value and its 133 Ohms (maybe tolerance issue of my resistance tester). Mik guys, please confirm if my value is correct so I can change the other unit with the same issue(can’t find the resistor of the other unit). I’ll post the pic when I get my USB cable.
Two units are working..just the PWR indicator.
Hope this can guide you improve your manufacturing process.
wirelessguy