– 35 –
Listen for the audio tone coming
out of the earpiece.
Is the audio signal present?
(check volume)
Speak into the microphone and listen
for your voice on the HP8924C speaker.
Can you hear your voice?
(check volume)
Press the “END” key on the Handset
and terminate the call.
End
Replace the Earpiece unit.
Audio Path
failure.
Transmission
System
failure.
YES
NO
Is the SAT frequency
and deviation within
specifications?
YES
NO
YES
NO
Replace the Board Set.
Replace the Board Set.
SECTION 3
TROUBLESHOOTING FLOW CHARTS