Soldering

Some notes on soldering.

caution

After soldering is completed, remember to use a multimeter to test for any short circuits between the power supply (5V, 3.3V, and GND) and USB D+/-.

Diodes

Diodes are unidirectional, and soldering them in the incorrect direction can cause the keyboard to malfunction. Please take note of which side is the anode (+) and which side is the cathode (-).

The cathode side of the diode is marked with lines, while the anode side does not have any markings. On the PCB, there is also a line indicating the cathode side. Please solder each diode accordingly, following its polarity mark on the PCB.

▲ Diode polarity marking.

Hot-swappable Sockets

Solder hot-swap sockets with incorrect placement will block the hole.

▲ Hot-swap sockets placement.