C - 12 Fault finding charts June 2003 IPN: M5000-00-105
Figure C-4: Receive faults
NO
NO
Reprogram radio.
YES
NO
Is the radio programmed
correctly?
NO
Is the radio in lock
(command 72)?
YES
NO
Does on/off/volume pot vary
between 180 ohms to 10K
between pin 3 and GND and
between pin 2 and GND?
YES
Return to nearest
Tait dealer
Receive faults
YES
NO
Does speaker
Z = 16 ohms?
YES
Check programming. Are
channels programmed correctly?
YES
NO
Are the speaker contacts
functioning?
Is the frequency/band
information correct?
YES
Replace speaker.
Replace speaker contacts.
Replace on/off/volume
control switch.
NO
Is receive sense
> -117 dBm
YES
NO
Is squelch operating normally?
16 dB city, 12 dB country
YES
Recalibrate squelch.
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