Micro908 Antenna Analyst “Assembly Manual”, v2
9
Copyright 2004, G. Heron, N2APB
First corner pin of surface mount IC being attached. Solder wick easily absorbs excess solder between pins.
(IC shown being attached here is the DDS chip onto the DDS Daughtercard. The techniques are the same for the Micro908 ICs.)
Using the Component Layouts During Assembly
A helpful practice to develop is to mark the supplied Layout diagram as you install each component. As you go along, the
diagram will fill up with more and more marks, enabling you to more easily find the location of the remaining components,
and have confidence that you haven’t omitted installation of a component along the way.
A useful marking technique is to identify with a “dot” the location of the parts you are about to install, making it easier for
you to place and solder the part in the right spot. Once soldered in place, going back to the diagram and placing a full line
in that same spot will indicate that you’ve soldered it in place, as shown in the photo on the right.
The component layout diagram is a useful tool if you mark it up as you proceed along in installing the components.
1) Install components from Resistor Card 1 section of the SMT Sheet
Using the Component Layout Diagram in Appendix A as a guide, install the SMT components from the Resistor Card 1.
Check off each row as you complete installing those components.
QTY
[ ] 1
R46
Resistor, 10, SMT, 1206
[ ] 3
R11, R12, R14
Resistor, 49.9, SMT, 1206, 1%
[ ] 1
R7
Resistor, 330, SMT, 1206
[ ] 1
R8
Resistor, 1K, SMT, 1206
[ ] 1
R6
Resistor, 4.3K, SMT, 1206
[ ] 1
R44
Resistor, 4.7K, SMT, 1206
Содержание AA-908
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