User Manual

13. Maintenance and Reference
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13.
Maintenance and Reference
13-1 Troubleshooting
Please check the list below before concluding that the receiver is faulty.
If a problem persists even after performing the actions below, try resetting the
receiver. This may correct erroneous operations.
Symptom Possible Cause Action
Nothing appears on the LCD
when you turn the power ON.
Poor battery contact Check that the battery terminals are
clean.
Flat batteries Recharge the battery pack or replace
dry-cell batteries with new ones.
Releasing the [PWR] key too
quickly
Press the [PWR] key for 1 second
until the receiver turns on.
No speaker audio/
No reception
Volume level is too low. Adjust the volume level.
Squelch level is too high. Adjust the squelch level.
Tone Squelch is ON. Deactivate the Tone Squelch.
Mute function is ON. Deactivate the Mute function.
Frequency display is incorrect. CPU error Uninstall the batteries or unplug the
external power supply. Wait for at least
10 seconds, and reinstall the batteries
or reconnect the power supply. If the
problem persists, reset the receiver.
The receiver does not scan. Squelch is open. Adjust the squelch level until noise
disappears.
Frequency and memory
channel number do not
change.
Key-lock is ON. Release the Key-lock.
Keys do not operate. Key-lock is ON. Release the Key-lock.
Display blinks or goes out
during reception.
Flat batteries Recharge the battery pack or replace
the dry-cell batteries with new ones.