Ramsey Electronics CW-700, Руководство пользователя

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CW700
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ˆ 4. Place the two miniature earphone jacks (J3, J6) on the board. Mount
them flush with the board and solder all connections. Cut off any excess
leads and check to see if your soldering connections are in good
condition.
Now that you have had a chance to get a little soldering practice, we will start
by constructing the touch sensitive circuit. The components for the circuit
will be mounted on both the front and main boards. Please remember to
mount all resistors flush to the board if there are no special instructions.
ˆ 5. Install R7, 22M ohm resistor [red-red-blue]. The resistor must be
mounted “standing.” This is to make more space for other components
and to keep your board from getting cluttered. Simply insert one of the
leads of the resistor all of the way into the
board. You can now bend the other lead into
it’s hole. The picture to the right shows how it
should look when it is properly mounted. In this
kit, there will be other resistors that need to be
mounted “standing.” Please refer to the Parts
Layout Diagram or the circuit board for the
mounting style of each resistor.
ˆ 6. Install R8, 1K ohm resistor [brown-black-
red]. R7 and R8 protect the “dot” circuit from
dangerous static current discharges.
ˆ 7. Install R11, 1K ohm resistor [brown-black-
red].
ˆ 8 Install R14, another 22M ohm resistor [red-red-blue]. This also must
be mounted standing. Resistors R11 and R14 protect the dash sensor
from burning out.
ˆ 9. Install C4, .001 uF disc capacitor [marked .001 or 102].
ˆ 10. Install C8, .001 uF disc capacitor [marked .001 or 102].
ˆ 11. Install C5, .01 uF disc capacitor [marked .01, 103 or 10nF]. These
capacitors are also designed to purge noise from the circuit. Less noise
means that the keyer won’t be beeping when you don’t want it to.
ˆ 12. Install C1, .01uF disc capacitor [marked .01, 103 or 10nF] located
near U1. Disc capacitors, like resistors, do not have polarity. It does not
matter which way it is inserted. C1 bypasses noise to ground. This way,
your touch paddles will “know” that it is you, and not just stray electrons
in the circuit.