C - 12 Diagnostics and fault finding 11/98 IPN: 449-51000-01
Figure C-4: Fault finding – Receive faults
NONO
YES
NO
NO
YES
NO
YES
Receive faults
Is the radio in lock
(command 72)?
Is the radio programmed
correctly?
Is the receive sense
>-117 dBm?
Is squelch operating normally?
16 dB city, 12 dB country
Does speaker
Z = 16 ohms?
Are the speaker contacts
functioning?
Replace on/off/volume
control switch.
Replace speaker contacts.
Replace speaker.
Recalebrate squelch.
Reprogram radio.
Check programming. Are
channels programmed correctly.
Is the frequency/band
information correct?
Does on/off/volume pot vary
between 180 ohms to 10 k
between pin 3 and GND and
between pin 2 and GND?
YES
NO
YES
YES
NO
YES
NO
YES
NO
YES
Return to Mobile Radio
Customer Service Department
To Next Page
Loading...
