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Radio Shack PRO-107 User Manual

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Troubleshooting
Problem
Cause
Solution
The scanner 
does not turn 
on
No power.
Ensure that iSCAN is equipped with 
fresh batteries. If powering iSCAN 
from external power, make sure 
that the external power plug is fully 
inserted into iSCAN’s PC/IF jack.
Low battery 
warning beeps 
and message 
on LCD display
Low batteries 
Recharge rechargeable batteries, 
replace alkaline batteries, or plug in to 
external power.
Poor or no 
reception
Weak signals 
from distant 
stations. 
Reposition for best reception. 
Turn SQUELCH counter-clockwise.
Attenuator in 
use on weak 
signals. 
Check performance with and without 
attenuator activated; use setting with 
best reception.
Strong signal 
overload 
from nearby 
transmitter.
Check performance with and without 
attenuator activated; use setting with 
best reception.
Loose or defec-
tive antenna. 
Inspect antenna and connectors and 
correct any problems found.
Incorrect mod-
ulation mode 
selected. 
Ensure that proper modulation mode 
is selected for the type of system 
being monitored. If necessary, use 
iSCAN PC Application to change 
Scanning 
not available
 
shown on 
display
The batteries 
are low and all 
functions that 
write data to 
the SD Card 
(including
scanning) are
disabled to 
prevent data 
corruption. 
Recharge or replace the batteries.
Problem
Cause
Solution
The scanner is 
on but does 
not scan
Squelch may 
not be adjusted 
correctly. 
Turn the squelch control 
counterclockwise.
The scanner 
does not rec-
ognize the SD 
Card
The SD Card 
is not properly 
formatted.
Use the iSCAN PC Application to 
reformat the card. If using Windows to 
format the card, the card format must 
be FAT with 32k clusters.
The SD Card 
may not be 
inserted fully. 
Press the SD Card into the slot until 
a click is heard and the card is fully 
inserted in the slot.
The SD Card 
may be 
defective. 
Replace with a new SD Card.
Init SD Card 
remains when 
the scanner is 
turned on
The SD Card 
is not properly 
formatted. 
Use the iSCAN PC Application to 
reformat the card.
The SD Card 
may not be 
inserted fully.
Press the SD Card into the slot until 
a click is heard and the card is fully 
inserted in the slot.
iSCAN does 
not accept 
a firmware 
upgrade
The USB cable 
is not plugged 
into the com-
puter or the 
scanner. 
Connect the USB cable to the scanner 
and the computer to proceed.
The USB cable 
drivers are not 
installed. 
Use the CD to install the cable drivers.