MFJ-422E/422EX Instruction Manual
Electronic Keyer Paddle
3
Paddle Installation for the MFJ-422EX
If you purchased the MFJ-422EX (keyer without paddle), you must install it
onto your paddle. Follow these instructions for installing the MFJ-422EX onto
a MFJ-564 or Bencher type paddle:
1.
Remove any cables from the paddle. Do not apply power to unit while it is
disassembled.
2. Set up your MFJ-422EX now, using the nine internal jumpers, to the type
of output keying required, the desired Iambic mode, the speed range, and
the format of the serial number. Refer to the “Jumper Settings” section on
page 7 for the meanings of these jumpers.
3. If you wish to use a nine volt battery, install one now. A nine volt battery
fits in the battery clip located inside the case. MFJ suggests the use of a
good long-life alkaline battery for longest operation.
4. Remove the rubber foot from the bottom rear of the paddle.
5. Remove the plastic cable clamp from the bottom center of the paddle.
6. Slide the MFJ-422EX on to the back of the paddle. Thread the cable
through the slot on the bottom of the MFJ-422EX. Secure the case with the
rubber foot and new screws. The MFJ-564 Iambic Paddle has four
additional holes to better secure the case of the paddle.
7. Connect the BARE wire of the cable to the middle terminal on the bottom
of the paddle for GROUND.
8. If you normally operate the paddle
right-handed
, then connect the DOT
(white or clear colored) wire to the
left
paddle terminal and the DASH
(black) wire to the
right
terminal. Connect the wires the opposite way if
you operate the paddle
left-handed
.
9. Place the cable in the plastic cable clamp and secure it with a screw. Fold
any excess cable up into the unit.