Ramsey Electronics UAM4SYS Assembly And Instruction Manual page 12

SURFACE MOUNT COMPONENT SOLDERING INSTRUCTIONS:
You'll notice that the circuit board contains only a few holes for component
leads to pass through. This is because the SMT components will be affixed to
the TOP side of the PC board, the side with the white printing. Be aware that
the component view for assembly is looking at the TOP side of the PC board.
Patience is the key when installing surface mount components. Typically, the
first step (after identifying the component) is to "tin" one of the PC traces that
will connect to the part. Once this is accomplished, the part can be installed by
holding it with tweezers in contact with the "tinned" trace and re-heating the
solder (see the following diagrams). Another commonly used technique is to
glue the surface mount components to the printed circuit board before
soldering. The procedure is to take a small amount of glue (usually with a pin
or toothpick) and "dab" the circuit board in the place where the component will
be affixed. Be careful not to apply too much glue as when the part is placed it
may "squash" the glue underneath the soldering tabs of the component.
Carefully place the part into position, and when the glue dries, solder the
connection.
UAM4SYS • 12