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3-
12
SGH-V100 Flow Chart of Troubleshooting
6. Speaker Part
Check the connection
from CN201 to LCD
module
Speaker does not work
Check the PIN 1 of
U402='High' and
U409='High'?
Check the circuit related to
U402,U409
Check U601
Is speaker ok?
Check U700
END
No
Yes
Yes
Yes
Yes
No
No
Is speaker ok?
Change Speaker
Yes
No