2nd lot - CentSDR (3): First soldiering and got 3.3V

My building process is very slow since there were other things which should be progressed.

The first soldering has been done. USB connector, switch, U9 and D4 have been attached to the board. USB connector should be carefully soldered since the connector needs to be attached to the board with the bottom face. It's most difficult part of the soldering in the kit assembly.



After this soldering process is finished, the USB power (5V) should be supplied with the USB connector. Once the power switch is moved to "On" side, 3.3V should be generated after the U9. This 3.3V power will be supplied to all parts in CentSDR. Thus the first test to get 3.3V is critical to go further steps.