Prior to performing this modification take the following precautions
to insure that damage does not occur to any component inside of your
Uniden scanner.

A) Try to perform the modification in a low static electricity
   environment.
B) Avoid wearing wool clothing or walking across a carpet (in low
   humidity areas) as well as touching your scanner or any component
   inside the chassis.

Required tools:   A small phillips screwdriver and a fine-pointed
                  snipping tool.

MODIFICATION PROCEDURE

1) Disconnect the antenna and slide off the battery pack from the
   scanner.
2) Remove the two screws from the back of the scanner plus the two
   screws that hold the battery pack retaining spring in place as
   well as the spring itself.
3) Carefully pry the bottom of the rear of the cover from the radio
   then remove the cover.
4) Locate the two small screws at the base of the circuit
   board and remove them.  Gently pull the front panel from the
   mainframe at the BASE (the two halves are connected by a plug so
   their will be some resistance) and separate them.
5) Consult the illustration below and locate the IC labeled "UNIDEN
   UC-1147" and the 10K chip resistor positioned above the letters
   "DEN" on the integrated circuit.  (The resistor will be color
   coded brown-black-orange).

  +-----------------------------------------------------------+
  |                    BC200/205XLT PC Board                  |
  |                                                           |
  |   (Speaker)                   [] <------10k Chip Resistor |
  |                     ||||||||||||||||||                    |
  |                    -      UNIDEN      -          |||||||  |
  |                    -                  -         -       - |
  |                    -     UC-1147      -         -       - |
  |                     ||||||||||||||||||           |||||||  |
  +-----------------------------------------------------------+

(It makes no difference whether the 1147 is an UC-1147 or UC-1147A)

6) Using the small wire cutters, cut the resistor in half.  (Be
   careful as the resistor may shatter causing debris to scatter
   along the PC board).  Be sure to remove all left over residue by
   blowing or brushing it away. The solder pad that the resistor was
   soldered to may peel up as you remove the resistor.  You may peel
   the pad off if done carefully not to disturb the surrounding area
   or components.
7) To reassemble insert the top of the front panel into the slot
   under the volume/squelch control panel while noticing the
   alignment of the dual in-line connector at the bottom of the
   board with the mating socket and finally pressing it (the front
   panel) in place.  Be sure that the holes in the PC board line up
   with the holes in the plastic standoffs under the board.
8) Insert the two screws and gently tighten.  Replace the back cover
   by inserting the top of the cover into the slot under the
   volume/squelch control panel. Press the cover into place, insert
   and tighten the screws.  Replace the battery retaining sprint
   with the slotted side facing the notched hole. Insert the two
   remaining screws and gently tighten them.   Slide the battery
   pack into place and switch the scanner on to make sure the
   display comes on. If not, check that the battery is charged
   and/or the battery retainer spring is properly mounted or dual
   in-line connector was misaligned during reassembly.   Assuming
   the modification and the reassembly was successful, switch the
   scanner on, press manual, 845.0, E and within a couple of seconds
   you should see the frequency 845.000 MHz displayed.  The
   modification is now complete!

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