5-4
888-2685-001
12/24/07
WARNING: Disconnect primary power prior to servicing.
Ranger Commissioning Manual
Section 5 Replacement Procedures
STEP 4
Unsolder the brown DC power wire from the bad pallet, and stretch it up.
NOTE:
Be sure to properly identify the failed pallet prior to removal. Figure 5-3 can be
used to verify pallet location. The pallets are numbered 1 through 6 with pallet
number 1 being closest to the front of the module.
Figure 5-3 PA Pallet Numbering Scheme
STEP 5
Unsolder the input and output ribbon wires from the pallet side leaving
them attached on the combiner and splitter. Carefully bend them up and
out of the way. Remove the 7 Allen head mounting screws holding the
pallet in place.
STEP 6
Carefully lift up the pallet using the copper clamps, situated over the RF
Transistors as handles.
NOTE:
Lifting the pallet can be made easier by using a flat blade screwdriver to gently
pry upward on the edge of one of the screws still mounted to the pallet being
removed. Use an adjacent screw on an adjacent board to pry against lifting up on
the board that is being removed. Once the board is loosened in this way the cop-
Summary of Contents for Ranger Series
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