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5-14
Flow Chart of Troubleshooting
5-8 Alert Tone
Abnormal Alert tone
ALERT by Test S/W
Is there alert wave form on the
R110 during alert tone test?
Is there alert wave form on the
Q102 pin 3 during alert tone
test?
U116 pin 5 3.3V?
Check the circuit related to Q102
END
Check the circuit related to U116
Yes
No
Yes
Yes
No
No
Buzzer is ok?
Change the Buzzer
Yes
No
Summary of Contents for SGH-N300
Page 2: ...Samsung Electronics Co Ltd Printed in Korea 06 2001 Rev 1 0 GH68 02097A ELECTRONICS ...
Page 11: ...Exploded Views and Parts List 1 8 1 10 Desk Top Charger DESK TOP CHARGER GH44 00206A ...
Page 12: ...2 1 PCB Diagrams Schematic Diagrams 2 PCB Diagrams 2 1 Main Top ...
Page 13: ...2 2 PCB Diagrams Schematic Diagrams 2 2 Main Bottom ...
Page 41: ...Flow Chart of Troubleshooting 5 12 J101 SPK101 U110 PWO1P PWO1N SPK SPK 6 2 3 SPK SPK ...