Hytera PNC550 - Proximity Sensor;Ambient Light Sensor;Led Circuit

Troubleshooting Flowchart
B9
32
6.1.10 Proximity Sensor/Ambient Light Sensor/LED Circuit
No
Yes
No
No
Yes
Is t he
light
-sensitive silicon rubber case
insta lled normally? [1]
Rep air or rep la ce the lig ht-sensitive
& tricolor light FPC.
Reinst all or rep lace the silico n
rub ber ca se.
Are the con ne ctor and
pe rip he ra l compo ne nts normal?
[3]
Is t he light-sensitive & tr icolor
light FPC nor ma l? [2]
Rep air or rep la ce the con ne ctor or
pe rip he ra l compo ne nts .
Yes
St ar t
End
Rep la ce the main
bo ard.
Description of normal situations:
[1] The light-sensitive silicon rubber case is not deviated, and the leak size is normal.
[2] The FPC is not damaged or soldered insufficiently. The connector is connected properly.
[3] The peripheral components of the connector are soldered properly without breakage and short circuit.