PRO-2040 100-Channel Programmable Home Scanner
(200-0414)                 Troubleshooting            Faxback Doc. # 17767

The Radio Shack PRO-2040 100-Channel Programmable Home Scanner should
require very little maintenance.  If there are problems, refer to this
chart for possible solutions.  If the problems persist, contact a local
Radio Shack store for assistance.

Problem               Probable Cause           Solution

Scanner is totally    The AC or DC adapter     Be sure the adapter is
inoperative.          is not properly          fully inserted into the DC
                      connected.               12V jack and into a working
                                               AC or DC power source
                                               receptacle.

The display dims.     The AC or DC adapter     Be sure the adapter 
                      does not provide the     is set to provide no
                      required 12 volts DC.    less than 12 volts DC.

The scanner turns     The SQUELCH control      Adjust the SQUELCH
on, but does not      is not correctly         control clockwise (see
scan.                 adjusted.                "Turning On the
                                                Scanner/Setting the
                                               Volume and Squelch").

In the scan mode,     A "Birdie" frequency     Avoid programming
the scanner locks     has been programmed.     frequencies listed under
on frequencies                                 "Finding Birdie
that have an                                   Frequencies", or only
unclear transmission.                          select them manually.

Poor or no            Improperly connected     Be sure the antenna is
reception.            antenna.                 properly connected.

                      Programmed frequencies   Avoid programming
                      are the same as Birdie   frequencies listed 
                      frequencies.             under "Finding Birdie
                                               Frequencies", or only
                                               select them manually.

                      The environment is not   Relocate the scanner and
                      suitable for reception   try again.
                      by the scanner.

Keys do not work      Undetermined error.      Reset or initialize the
or display changes    The CPU is locked up.    scanner (see "Resetting the
at random.                                     Scanner's Display" and
                                               "Initializing the Scanner").

Error appears on      Programming error.       Reprogram the 
the display.                                   frequency correctly.


(cjs/all-11/07/95)