Troubleshooting - Radio Shack PRO-28 Owner's Manual

20-508.fm Page 36 Wednesday, August 4, 1999 1:50 PM

TROUBLESHOOTING

If you have problems, here are some suggestions that might help. If
none of these suggestions help, take your scanner to your local Radio
Shack store for assistance.
PROBLEM POSSIBLE CAUSE
Keys do not work or Undetermined error.
display changes at
random.
Scanner is on but The
will not scan. not correctly adjusted.
No power.
Scanner is totally
inoperative.
The optional AC or DC
power adapter is not
connected.
Batteries are not cor-
The scanner's dis-
rectly installed.
play dims or the
scanner sounds a
Batteries need to be
tone every 15-30
replaced.
seconds.
Environment is not suit-
able for reception by the
scanner. Batteries are
Poor or no recep-
weak or dead.
tion.
Improperly connected
antenna.
36
Reset the scanner (see
"Resetting the Scanner").
control is Adjust
SQUELCH
• Check the batteries, or
make sure the scanner
is plugged into a working
AC or DC outlet.
• Recharge the recharge-
able batteries or replace
the non-rechargeable
batteries.
Be sure the adapter is fully
inserted into the DC 12V
jack.
Make sure the batteries' +
and – terminals are proper-
ly aligned.
Insert new batteries or re-
charge rechargeable bat-
teries.
Relocate the scanner and
try again.
Be sure the antenna is
properly connected.
REMEDY
clockwise.
SQUELCH