Samsung Electronics
5-9
Troubleshooting
ALERT TONE
Abnormal Alert tone
Check the connection
from Buzzer to U308?
U307 pin 5 (AVCC) = 3.0V?
Does
the 13 MHz clock signal
Come out from the U405
pin 64?
Is there alert wave
form on the U405 pin 36 during
alert tone test?
Is it present
the alert wave form on the
U308 pin 5?
Check the circuit around
U452 (E
2
PROM)
END
Resolder the connection from
Buzzer to U308
Check the circuit related to U307
Check the connection from
U408 pin 85 to U405 pin 64
Resolder U405 pin 36
Check the circuit around U308
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Summary of Contents for SGH 600
Page 2: ...Samsung Electronics Co Ltd ELECTRONICS ...
Page 6: ...1 4 Samsung Electronics General Description MEMO ...
Page 20: ...3 4 Samsung Electronics Specification MEMO ...
Page 40: ...7 8 Samsung Electronics Electrical Parts List MEMO ...
Page 48: ...8 8 Samsung Electronics Exploded View and its Parts List 8 9 Hands Free Kit Diagram ...
Page 49: ...Samsung Electronics 8 9 Exploded View and its Parts List 8 10 Boost Kit ...
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