Ramsey Electronics BS2C Manual de instrucciones descargar pdf (Pagina 10)

DCI2 • 10

DTMF Controller kit it is best to follow the step-by-step instructions in this

manual. Try to avoid the urge to jump ahead installing components.

Since you may appreciate some warm-up soldering practice as well as a

chance to put some landmarks on the PC board, we’ll first install some of the

larger mounting components. This will also help us to get acquainted with the

up-down, left-right orientation of the circuit board. Remember that all of the

components will be mounted on the component side of the circuit board and

soldered on the solder side of the circuit board (the side that contains the

printed circuit traces). Have a look at the parts layout diagram to help with your

assembly.

Use the boxes to check off your progress.

Check all received parts against the parts list. The parts list describes the

various markings that may be found on the kit parts. Carefully sort the parts into

small piles, (an empty egg tray does nicely for this purpose) to aid in finding

the correct part at the required time.

Today's IC’s have achieved remarkable performance levels and it is extremely

unlikely that any of your chips will have problems, yet we know that some of our

hobbyists insist on socketing all IC components. The addition of these will not

“void” your warranty, but if a problem arises from a socketed component you

will be required to pay the additional technician fee for labor in the repair of your

kit, if necessary.

We will begin by installing the input and output connectors on the rear side of

the circuit board. These will act as our landmark components and make the

orientation of the rest of the parts a bit easier.

Enough of that ... let’s get started!

Proper Component Installation:

NOTE: All of the diodes and resistors used in the kit will be installed in a stand

up fashion. This means one lead will go straight into the board while the other

is bent around to go back down into the other hole. The straight lead goes into

the hole with the silk-screened circle around it on the circuit board.

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Ramsey Electronics BS2C Manual de instrucciones Pagina 10