Radio-shack PRO-2040 User Manual download pdf (Page 39)

TROUBLESHOOTING

Your Radio Shack PRO-2040 100-Channel Programmable Home Scanner

should require very little maintenance. If you have problems, refer to this chart

for possible solutions. If you cannot solve the problem, contact your local Radio

Shack store for assistance.

Problem Probable Cause Solution

Scanner is totally inoperative. The AC or DC adapter

is not properly con-

nected.

Be sure the adapter is fully

inserted into the

DC 12V

jack

and into a working AC or DC

power source receptacle

The display dims. The AC or DC adapter

does not provide the

required 12 volts DC.

Be sure the adapter is set to

provide no less than 12 volts

DC.

The scanner turns on, but

does not scan.

The

SQUELCH

con-

trol is not correctly

adjusted.

Adjust the

SQUELCH

control

clockwise (see “Turning On the

Scanner/Setting the Volume

and Squelch”).

In the scan mode, the scanner

locks on frequencies that have

an unclear transmission.

You have programmed

a “Birdie” frequency.

Avoid programming frequen-

cies listed under “Finding

Birdie Frequencies,” or only

select them manually.

Poor or no reception. Improperly connected

antenna.

Programmed frequen-

cies are the same as

Birdie frequencies.

The environment is not

suitable for reception by

the scanner.

Be sure the antenna is properly

connected.

Avoid programming frequen-

cies listed under “Finding

Birdie Frequencies,” or only

select them manually.

Relocate the scanner and try

again.

Keys do not work or display

changes at random.

Undetermined error.

The CPU is locked up.

Reset or initialize the scanner

(see “Resetting the Scanner’s

Display” and “Initializing the

Scanner”).

Error

appears on the dis-

play.

Programming error. Reprogram the frequency cor-

rectly.

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Radio-shack PRO-2040 User Manual Page 39

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