Hytera PNC550 - Troubleshooting Flowchart; Main Board Circuit

Troubleshooting Flowchart
B9
22
6. Troubleshooting Flowchart
6.1.1 Main Board Circuit
Press the On-Off key
to turn the radio on
.
Doe s th e mot or vibrate ?
Yes
Damag ed key FP C or ke y
con nector o n t he main b oard.
Rep lace the key FP C or th e ke y
con nector .
Yes
Rep lace the
main boa rd.
Damag ed LCD o r L CD
con nector o n t he main b oard.
Rep lace the LCD o r t he LC D
con nector .
No
Rep lace the mai n b oa rd
.
St art
End
Replace
th e LCD or LCD co nne cto r
on the main board. Can th e rad io b e
turned on normally?
[1]
Con ne ct th e rad i o t o a
power supply with USB.
Can th e rad io b e t ur ne d o n
normally?
No
Yes
No
Description of normal situation:
[1] The motor vibrates and the LCD displays the start-up animation. The operation interface can be
accessed.