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...