Date:Fri, 26 May 89 08:51:34 edt
From:
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
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Source QRZ: The Windows Ham Radio CDROM |
