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-
- Date: Fri, 26 May 89 08:51:34 edt
- From: <PZS@MERCURY.MCEO.DG.COM>
- Subject: Mods for BC200/205XLT
-
- CEO file contents:
-
-
- The following was received from Grove Enterprises with my friend's
- BC200XLT.
-
- ...............................................................................
-
- BC200/205XLT CELLULAR RESTORATION
-
-
- Note: It is unlawful to monitor cellular telephone conversations. It is
- possible to monitor signals from the deleted ranges even without conversion.
- Simply add 21.7 MHz to the deleted frequency and enter the higher (image)
- frequency. Reception is virtually identical in strength to that which would be
- heard on the deleted frequency.
-
- The frequencies deleted at the factory may be restored, but the procedure must
- not be attempted by anyone unfamiliar with electronic circuitry. Grove
- Enterprises assumes no liability for damage caused by this procedure. The
- modification will void your warranty.
-
- TOOLS REQUIRED: Small Phillips screwdriver, small wire cutters.
-
- 1. Slide off the battery pack and remove the antenna from the scanner.
-
- 2. Using a small Phillips screwdriver, remove the two screws from the
- back of the scanner, the two screws which hold the battery retaining spring at
- the base and the spring itself.
-
- 3. Carefully pry the bottom of the rear cover from the radio and 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 and
- separate them.
-
- 5. Locate the (64 pin quad flatpack) microprocessor IC labelled "UNIDEN
- UC-1147" and the 10k ohm (brown-black-orange) leadless resistor positioned
- above the letters "DEN" on the IC.
-
- 6. Using miniature wire cutters, cut the resistor body in two without
- disturbing anything else near it. If the left solder pad comes loose, it may be
- peeled from the board. Brush or blow away any residue. This completes the
- restoration.
-
- REASSEMBLY
-
- 7. Insert the top of the front panel into the slot under the
- volume/squelch control panel and, noting carefully the alignment of the dual
- inline connector at the bottom of the board with the mating socket, press the
- front panel firmly into place. Be sure that the holes at the bottom of the
- circuit board line up with the holes in the plastic standoffs below them.
- Insert the two screws and gently tighten them.
-
- 8. 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.
-
- 9. Reposition the battery retaining spring (slotted side toward notched
- hole), insert the two remaining screws and gently but securely tighten them.
-
- 10. Slide the battery pack into place; switch the scanner on to make
- sure the display comes on. If not, the battery is discharged or the dual-inline
- connector was misaligned during assembly (see step 7).
-
- Assuming the display comes on, press: MANUAL, 845.0, E; within two seconds, the
- frequency 845.000 should appear on the display.
-
- Cut this resistor
- |
- V
- [*10k*] [ ]
-
- I I I I I I I I I I I I I I I I I I I
- = =
- = =
- = =
- = =
- = U N I D E N =
- = =
- = =
- = =
- = =
- = U C - 1 1 4 7 =
- = =
- = =
- = =
- I I I I I I I I I I I I I I I I I I I
-
- ------------------------------
-
- Copied from the QRZ! Windows Ham Radio CDROM
-
-