Blu LIFE ONE M, Service Manual

Page: 34 / 47

34
No
Yes
YES
NO
YES
NO
YES
NO
No/Low sound from MIC
No/Low sound from MIC
Install the MIC cover
Check if there’s
MIC cover
Press power on and side button to test
mode and activate echo loop, measure
MIC MK1001 voltage is 1.5V
、
0.7V
Replace MIC
ReplaceB1108 or B1109
Check if inductor B1108
、
B1109 is damaged.
Replace
C1124
、
C1125
Measure C1124
、
C1125
with multimeter to see if
there’s 0.5V offset voltage
Resolder or replace
CPU U101
MT6589
END