Ramsey Electronics SCA1 User Manual - page 10
SCA1
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10
RAMSEY Learn-As-You-Build KIT ASSEMBLY:
We have a two-fold "strategy" for the order of the following kit assembly
steps. First, we install parts in physical relationship to each other, so there’s
a minimal chance of inserting wires into wrong holes. Second, whenever
possible, we install in an order that fits our “Learn-As-You_Build” kit building
philosophy.
For each part, our word “Install” means:
1
Pick the correct part value to start with.
2
Insert it into the correct PC board location.
3
Orient it correctly, which means: Follow the PC board drawing and the
written directions for all parts where there's a right way and a
wrong way to solder it in. (Note diode bands, electrolytic capacitor
polarity, transistor shapes, dotted or notched ends of IC's, and so
forth.)
4
Push the component as close to the component side as is
mechanically possible; this will keep the component side neat and
prevent parts from "radiating" signals to undesired locations.
5
Solder all connections unless directed otherwise. Use enough heat
and solder flow for clean, shiny, completed connections. Don't be
afraid of any pen-style soldering iron having enough heat to damage
a component.
6
Trim or "nip" excess wire lengths after soldering.
NOTE: Save some of the longer wire scraps nipped from resistors and
capacitors. These will be used to form wire jumpers (JMP1, etc.) to be
soldered in just like parts during these construction steps.
FIRST ASSEMBLY STEPS
Since you may appreciate some warming-up soldering practice as well as a
chance to put some "landmarks" on the SCA1 PC board, we first will install
some "hardware" components, to make the up-down, left-right orientation of
the PC board as clear as possible. Initially, it can be quite confusing to find
the right holes, even for an experienced builder. Just remember that the
"component" side of the circuit board, the side shown in the parts layout
diagram, is viewed from the top side. There are no PC traces on this side of
the circuit board, the component leads will pass through the board and be
soldered on the "solder" side of the board.