SOUTH CENTERED METER
SCALE COVERSION
The stock CD-45-II Control Unit is shipped with the
meter scale installed for "North" center operation;
ends of rotation are at the "South" position. Some
geographic locations and/or popular working areas
may favor having the meter "South" center; ends of
rotation are at the "North" position. We have
provided the CD-45-I1 with an interchangeable
meter scale. See the note following Step #11.
8.
Carefully slip a knife blade under each corner of
the lower edge of the white meter scale and twist
slightly until the scale clears the two small
indexing pins. Remove the scale and install the
new one. Make sure the scale fits over the
indexing pins and that it is flush and tight
against the black housing. This will assure free
movement of the indicator needle.
We recommend the following
1.
Disconnect the power
9. Reinstall the meter (remove the temporary
jumper), the P.C. Board and lamp hardware.
Check for pinched, shorted end, or over-stressed
wires.
2. Remove the control cable, carefully label' g each
wire with its corresponding terminal number.
This operation may be omitted if the control
box can be worked on easily without removing
the leads.
10. Reinstall the top and bottom
l 1. Reconnect the control cable in the exact
sequence as they were removed.
3. Remove the top and bottom covers.
4. Slip the lamp and holder off the lamp holder
bracket. Loosen the hex nut on the transformer
that is holding the lamp holder bracket and
swing the bracket clear of the wires leading to
the printed circuit board.
If your beam was installed originally using the CD-
45II with a "North" center scale, the antenna mast
must be loosened and repositioned. In order for the
meter to indicate properly, the front of your beam
must point "North" when the rotator is at the ends of
rotation.
Recalibrate the meter.
5. Carefully remove the hex nuts on the meter studs
to free the printed circuit board. Slip the P.C.
Board off the studs and pull it down under the
chassis.
CAUTION
It is good practice to use a short test lead or jumper
wire to short the meter studs when it is not in the
circuit.
NOTE: In the past, the South Centered meter scale
was on the reverse side of the factory installed North
Center scale. The unit is now provided with a
separate South Centered scale. This will help to
avoid damage to the face of the meter scale during
removal of the North Centered scale.
6. Loosen the meter retaining clips and remove the
meter from the chassis.
7.
Insert a small knife blade between the clear
meter cover and black housing at either corner
of the top edge and gently
pry
the cover loose
from that corner. Repeat for the other corner.
The meter cover should pop off.