Hytera PNC550 - Main Circuit

B9
Troubleshooting Flowchart
23
6.1.2 Main Circuit
Rep la ce the spr ing pl a te.
Are the
Com po nents bet we en
th e ante nna co nnect or
an d the spring pla te
normal? [4]
Re-sold er or r ep lace the
test connector.
Replace the antenna bracket.
No
Yes
Yes
Yes
Yes
No
No
No
Is t he an ten na
bra cket n orm al? [1]
Is the main
antenna spring plate
ANT1-4
normal? [2]
Is the main antenna
test connector J12 00
normal? [3]
Rep la ce the com po nents
.
Are the m ain-bo ar d test
items n orm al? [5]
Rep la ce the main b oa rd .
No
St art
End
Che ck an d ch ange th e t est
meth ods, to ols, an d envir on ment ..
Yes
Description of normal situations:
[1] The etched pattern on the antenna bracket is clear and without scratch. The antenna bracket is in good
contact with the spring plate.
[2] The spring plate has no breakage, and is flexible and soldered properly.
[3] The test connector is soldered properly. When the cable is not buckled, the multimeter can be used for
measurement. Both ends are connected.
[4] The components are soldered properly without damage.
[5] Use a single-board test clamp to test the main antenna. All test items are normal.