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SGH-Z320i Flow Chart of Troubleshooting and Circuit Diagrams
2-
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2-2-7. BLUETOOTH
Bluetooth Activation
Has the BT Ant
no crack?
Check U801
Pin#22
≒
2.6V ?
Pin#23
≒
3.0V ?
YES
YES
NO
NO
BT Ant
Resolder or Change
Check the U501
Check U801's
Pin #3 has any signal?
YES
Check U801's
Pin #11 output >-6dBm
YES
THE END
NO
NO
Check UCP100
Change the new BT
modue