Radio Shack PRO-137, Manual

36

37

Troubleshooting

Problem

Cause

Solution

Scanner is on 
but will not 
scan.

Squelch is not 
adjusted correctly.

Adjust squelch.

Only one channel 
or no channels are 
stored.

Store frequencies 
into more than one 
channel.

Scanner does 
not turn on.

Batteries are 
discharged.

Recharge the 
rechargeable 
batteries or replace 
the non-rechargeable 
batteries.

The AC adapter is 
not connected

Be sure the adapter’s 
barrel plug is fully 
plugged into the 
jack.

Scanner
keypad
doesn’t work.

The keylock 
function is 
activated.

To turn off the 
keylock, press 

Func

+ KEYLOCK

. Keypad 

unlocked appears.

&

is

flashing.

Batteries are low.

Recharge the 
rechargeable 
batteries or replace 
the alkaline batteries.

Poor or no 
reception.

Batteries are weak 
or completely 
discharged. 

Check the batteries 
or make sure the AC 
adapter is connected 
properly. 

Antenna is loose. 

Make sure an 
antenna is connected 
to the scanner.

Invalid Freq.

appears.

Programming 
error.

Re-enter the 
frequency or number 
correctly, including 
the decimal point.

Scanner
display locks 
up or stops 
operating
properly

Internal error.

Turn scanner off 
and on again, or 
disconnect and 
reconnect power 
source.

Internal error.

Reset the scanner.

Resetting the Scanner

Caution:

This procedure clears all the information 

you have stored in the scanner. Before you reset 
the scanner, try turning it off and on to see if it 
begins working properly. Reset the scanner only 
when you are sure it is not working properly.

1.

Turn off the scanner. If you cannot turn off the 
scanner, remove the battery and install again.

2.

While holding down 

2

,

9

 and 

SCAN

, turn on 

the scanner. 

Initializing…Please wait 

appears as 

the scanner clears its memory.

Note:

 Do not turn off the scanner again until 

Initializing…Please wait

 disappears. Otherwise, 

the scanner might not clear its memory properly.

Additional Information

FCC Notice

Your scanner might cause radio or TV interference 
even when it is operating properly. To determine 
whether your scanner is causing the interference, 
turn off your scanner. If the interference goes 
away, your scanner is causing it. Try the following 
methods to eliminate the interference:

• Move your scanner away from the receiver.
• Connect your scanner to an outlet that is on a 

different electrical circuit from the receiver.

• Contact your local RadioShack store for help.

In some areas, mobile use of a scanner is 
unlawful or requires a permit. Check the laws 
in your area. 

This device complies with Part 15 of the FCC 
Rules. Operation is subject ot the following two 
conditions: (1) This device may not cause harmful 
interference. (2) This device must accept any 
interference received, including interference that 
may cause undesired operation.