7
USER INTERFACE
MAIN PCB
Start by snaping in the nine potentiometers in place. Follow the BOM to ensure the
correct values.
Follow this by placing the power switch and solder all the components.
The eight pin male headers will be assembled later.
Start by soldering the Li-Ion Charger and DC Booster modules first. To do this, apply
flux to the pads on the Main PCB and place the modules in their correct orientation on
the Main PCB. Secure them if needed and apply heat with your soldering iron on the pads
of the modules. Apply solder to the pads of the modules and let the solder flow into
the pads on the Main PCB, securing them together.
Do the same procedure to solder the 3.5mm jacks as well as the 18650-cell socket on
the underside of the Main PCB. Ensure the correct polarity on the socket.
Follow this by placing the remaining components on the Main PCB. Start with the
smaller ones such as resistors and ceramic capacitors.
