Troubleshooting Chart - Radio Shack PRO-96 Owner's Manual

Troubleshooting Chart

Problem
Poor reception
Scanner will not power on
The keypad does not work
Scanner will not scan when
SCAN key is pressed
The scanner does not
receive digital
transmissions on digital
frequencies or trunking
systems
Possible Cause
Weak signals from distant stations
Attenuator in use on weak signals
Strong signal overload from nearby
transmitter(s)
AC or DC power supply not properly
connected
Dead batteries
Keypad lock is activated
The scanner may need to be reset
or initialized
Possible "birdie" frequency
programmed
The scanner may need to be reset
or initialized
No channels programmed, or only
one channel programmed, or all
channels locked out
SQUELCH control is not adjusted
properly
The digital channel or talkgroup is
not using APCO-25 digital
modulation
The digital channel or talkgroup is
encrypted
The digital channel or talkgroup is
being transmitted from a distant
location
103
Remedy
Reposition radio for best
reception
Check performance with and
without attenuator activated, use
setting with best reception
Check performance with and
without attenuator activated, use
setting with best reception
Check connection to AC or DC
power source
Replace batteries
Press FUNC LOCK to disable
keypad lock
Follow steps to reset or initialize
the scanner on Page 104
Tighten squelch, apply attenuator
or lock out the "birdie" frequency
Follow steps to reset/reinitialize
the scanner on Page 104
Ensure that the scanner has
more than one channel
programmed and enabled for
scanning
Turn SQUELCH control
clockwise until scanning resumes
The scanner can only receive
APCO-25 C4FM IMBE digital
signals
The scanner will not receive
encrypted traffic
Reposition the scanner or use an
outdoor antenna to improve
reception