PRO2006.3 From: KA4NMX@KD4OM.#HKY1.NC.USA.NA Pro-2006 Modifications Note: The Electronics Communcations Privacy Acot of 1986 makes it unlawful to monitor mobile telephones, including Cellular. The Following modification is intended only to restore contin- uous 760-1300 MHz coverage as originally provided by the design of the PRO-2006 Microprocessor. 824-851, 869-896 MHz Freq Restoration : Tools Requires: small phillips screwdriver, small wire cutters. Procedure: With power cord unplugged, remove the two rear cab- inet screws holding the upper cover. Lift off the upper cover, being careful not to stretch the speaker leads. Examine the inner, right-hand-corner of the front panel to find two glass diodes, labelled D503 (upper diode) and D502 (lower diode). Using the clippers, very carefully snip the visible lead of the lower diode (D 502) at its bend and slightly separate the cut ends. Reassemble, plug in AC cord, turn on scanner, and Press RESET. Keyboard Beep Delete With the top cover off as described above, locate connectors CN3, a 15-pin connector with colored wires at the front of the main circuit board. There are two procedures which will stop the beep tone from being heard through the speaker; read both to decide which procedure you want to follow. (1) Find the center gray wire coming from CN3 and cut it midway to disable the beep tone. You may wish to solder a resistor in series to reduce the beep volume, a trimpot tovary the volume of beep tone, or a miniature switch to choose between beep and No beep .....! (2) Using a pair of needle-nose pliers, CAREFULLY pry the plug from CN3, revealing a row of pins. Locate the center pin ( #8 ) which corresponds to the gray wire and bend it down flat, dis- abling the beep ........ This is a great scanner. Have fun with it. 73's KA4NMX...