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SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams
8.Alert Tone
Abnormal Alert tone
Alert tone On by pushing the key
*#0289#
Check the PIN 31, 32 of
NO
Check the circuit related to
CN200-1
U401,R460
Is there alert wave?
YES
Check the connection
NO
Change Speaker
from CN200-1 to LCD
Module
YES
NO
Alert is ok?
Change LCD Module
YES
END
4-8
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