Alert Tone - Samsung SGH-S300 Service Manual

SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams

8.Alert Tone

Abnormal Alert tone
Alert tone On by pushing the key
*#0289#
Check the PIN 17, 18 of
CN200-1
Is there alert wave?
Check the connection
from CN200-1 to LCD
Module
Alert is ok?
END
NO
YES
NO
YES
NO
YES
SAMSUNG Proprietary-Contents may change without notice
6-6
Check the circuit related to
U400,U401
Change Speaker
Change L CD Module