5-5
Flow chart of trouble shooting
5-5 Microphone Part
Microphone does not work
Resolder J403 pin 3, 4 and
D413, D414
Check
the connection
from J403 pin 3, 4
U413, U415 pin 2 (AVCC) 3.0V?
Check the circuit
from U414 to U413, U415
Check the circuit related to U308
END
Resolder the R444, R445, R446,
R447, C446, C450 and C451
Yes
No
Yes
Yes
Yes
No
No
Check the Key PCB
Replace the Key PCB
No
Yes
Summary of Contents for SGH-N100
Page 11: ...Exploded Views and Parts List 1 9 1 11 Desk Top Charger DESK TOP CHARGER GH44 00163A ...
Page 12: ...PCB Diagrams 2 PCB Diagrams 2 1 Main Top ...
Page 13: ...2 1 ...
Page 14: ...PCB Diagrams 2 1 Main Bottom ...
Page 15: ...2 2 ...