Hytera PNC550 - Top Microphone Circuit

Troubleshooting Flowchart
B9
30
6.1.8 Top Microphone Circuit
Is the main board Mic normal? [1]
Doe s th e wat erpr oof a nd
bre ath ab le fi lm or silico n ru bbe r
case block the Mic?
Yes
No
Remove th e obsta cle, or re-sold er
or rep lace the Mic.
No
Rep la ce the main b oa rd
.
Re-at tach or r eplace the wat erproo f
an d brea tha ble film o r the silico n
rub ber ca se.
Yes
St art
End
Description of normal situation:
[1] The main board Mic is not blocked and is soldered properly.