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FIRST ASSEMBLY STEPS:
Since the LB-56 kit is really two kits in one, we will build each kit one at a
time. If you are planning to use the kits separately, now is the time to
separate the circuit boards. This can be easily accomplished by setting the
"slots" in the center of the circuit board on the edge of a table or bench.
Continue by pushing down the section of circuit board that's hanging over
the edge of the table. The circuit board will "break" into two pieces. If the
fracture has a jagged edge, some light sanding of the edge may be
necessary. If you decide to separate the units, jumpers J1 and J2 will not be
used, and this will be covered in more detail in the assembly steps.
Since you may appreciate some "warming up" soldering practice as well as
a chance to put some "landmarks" on the LB-56 PC-board, we will first
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. 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. For no particular
reason the receiver kit will be built first. Assembly of this IR receiver is
straight forward, if the layout view is followed carefully. If you are
experienced in kit building, install and solder the parts in any order with
which you are comfortable. The easiest assembly will come from installing
the parts in the following order, checking off each step as completed.
NOW, LETS START BUILDING
© 1. Press $1 firmly into its six holes and soider all six pins. The switch fits
the board only one way. Ignore the other set of six solder connectors on
the switch.
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2. Install J2, the RCA-style audio jack. Solder all 4 points. You'll notice
that the mechanical grounding tabs will take longer to solder. This is due
to the fact that the large metal tab of the component as well as the
"ground plane" of the circuit board must be sufficiently heated to allow
the solder to flow properly. Don't be afraid to leave the soldering iron on
the tab long enough to make a good connection.
3. Install J1, the subminiature phone jack. Solder all three points. Be
gentle and patient in inserting, so as not to damage the solder tabs.
O81 4. Install control R14. Insert the PC mounted control firmly into its
position. Check that the control is pressed in firmly and straight against
the top of the board. Solder the three center pins and then the two larger
mechanical mounting tabs. Use enough solder for a solid connection.
Also, if you plan to use an enclosure other than the custom Ramsey
LB-56 08
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