TTZO,
IC102, 202, install on large heatsink, need to add isolated plate and plastic ring by M3 screw.
IC303 install on small heatsink, need to add isolated plate and plastic ring by M3 screw.
IC1 install on large heatsink, no need any isolation tools
Those heatsink have a 2 pin guide pin, need to fully insert into PCB.
For the soldering, only 1 side is enough. The PCB have plate through hole, which will connect top and bottom side. |