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Flow chart of trouble shooting
5-9
5-5 Microphone Part
Microphone does not work
Resolder CN211 pin 16, 17
Check
the connection
from CN211 pin 16, 17
U502, U503 pin 2 (AVCC) 3.0V?
Check the circuit
from U501 to U502, U503
Check the circuit related to U105
END
Resolder the R525, R527, R530, R531
C553, C532 and C538
Yes
No
Yes
Yes
Yes
No
No
Check the Key PCB
Replace the Key PCB
No
Yes
Summary of Contents for SGH-N288
Page 2: ...Samsung Electronics Co Ltd Printed in Korea 05 2001 Rev 5 1 GH68 02032A ELECTRONICS ...
Page 12: ...Exploded Views and Parts List 1 9 1 10 Desk Top Charger DESK TOP CHARGER GH44 00186B ...
Page 13: ...PCB Diagrams 2 1 2 PCB Diagrams 2 1 Main Top ...