User Guide

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SGH-E720 Flow Chart of Troubleshooting
2-9
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2-1-6. Camera Part
Camera function does not work
Check the connect CN507?
NO
Connect the CN507
Pin#4ofU306=1.8V?
NO
NO
Pin#3 of OSC300 is 24.5MHz?
NO
Pin #10 of U302 = 2.5V?
Check
U201
END
YES
YES
YES
YES
Is that clock s ignal at the
pin #30 of CN507?
NO
Pin#2ofU302=High?
YES
Check the U306&R376
Check
U201
NO
NO
Pin#56 of CN507 is High?
Check
U300
Replace
OSC200
YES
Check
Q301
Pin#3ofQ301=1.8V?
NO
YES
Pin#1ofQ301=Low?
NO
YES