Camera Part - Samsung SGH-E720 Service Manual

2-1-6. Camera Part

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