PRO-72 50-Channel Portable Scanner
(200-0566)                 Troubleshooting            Faxback Doc. # 39452

If your scanner is not working as it should, these suggestions might help
you eliminate the problem.  If the scanner still does not operate properly,
take it to your local Radio Shack store for assistance.

PROBLEM            POSSIBLE                      REMEDIES
                   CAUSES

Scanner is         The batteries are dead.       Replace the batteries with
totally.                                         fresh ones or recharge the
inoperative.                                     battery pack.

                   The optional AC or DC power   Be sure the adapter is
                   adapter is not connected.     fully inserted into the
                                                 PWR/DC 9V jack.

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

                   Programmed frequencies are    Avoid programming freq-
                   the same as birdie freq-      uencies listed under 
                   uencies.                      "Birdie frequencies" on
                                                 Page 37 or only select
                                                 them manually.

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

Keypad does not    Keylock is turned on.         Turn off keylock.
work.                   

Keys do not work   Undetermined error.           Turn the scanner off then
or display changes.                              on again, or reset the
                                                 scanner(see "Resetting/
                                                 Initializing the Scanner").

Scanner is on but  SQUELCH is not correctly      Adjust SQUELCH clockwise
will not scan.     adjusted.                     (see "Turning On the Scan-
                                                 ner and Setting SQUELCH"
                                                 on Faxback Doc. # 39449).

In the scan mode,  Birdies.                      Avoid programming freq-
the scanner locks                                uencies listed under "Bir-
on Frequencies                                   die Frequencies" on Fax-
that have an un-                                 back Doc. # 39451 or only
clear transmission.                              listen to them manually.

Resetting/Initializing The Scanner

If the scanner's display locks up or does not work properly after you con-
nect a power source, you might need to reset or initialize the scanner.

IMPORTANT!  If you have problems, first try to reset the scanner (see
            "Resetting the Scanner", below).  If that does not work, you
            can initialize the scanner (see "Initializing the Scanner"
            below); however, this clears all information stored in your
            scanner's memory.

Resetting the Scanner

1.  Turn off the scanner, then turn it on again.

2.  Insert a pointed object, such as a straightened paper clip, into the
    reset opening on the side of the scanner and gently press then release
    the reset button inside the opening.

NOTE:  If the scanner still does not work properly, you might need to
       initialize the scanner (see "Initializing the Scanner" below).

Initializing the Scanner

CAUTION:  This procedure clears all information you stored in the scanner's
          memory.  Initialize the scanner only when you are sure the scanner
          is not working properly.

1.  Turn off the scanner, then turn it on again.

2.  Press and hold CLEAR.

3.  While holding down CLEAR, insert a pointed object, such as a straight-
    ened paper clip, into the reset opening on the side of the scanner and
    gently press then release the reset button inside the opening.

4.  When the display reappears, release CLEAR.

NOTE:  You must release RESET before releasing CLEAR, otherwise the memory
       might not clear.


(LB/EB 5/12/97)

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