Table of Contents
Advertisement
5-5 Microphone Part
Microphone does not work
from CN503, pin 10, 11
U113, U115 pin 2 (AVCC)
from U108 to U113, U115
5-9
Yes
Check
the connection
Yes
2.9V?
Yes
Check the circuit
Yes
Check the Key PCB
Yes
END
No
Resolder CN503, pin 10, 11 and
ZD109, ZD112
No
Check the circuit related to Q102
No
Resolder the R174, R175, R176
R177, C187, C188 and C204
No
Replace the Key PCB
Flow chart of trouble shooting and Circuit Diagram
Advertisement
Table of Contents
