Samsung SGH-A737 Service Manual page 72

Umts telephone

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Flow Chart of Troubleshooting

9-2-13. BLUETOOTH

Bluetooth Activation

Check if there is any

crack on BT ant.

Is there any signal

pin#G1 at U105?

YES

L115 is High?

YES

C124 = 2.6V ?

YES

U302 Check

Pin #4,8 is High?

YES

THE END

YES

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Replace ANT102

Check the path form ANT102 to

U102

replace L111 or check U402

Check U402

Check U302 and UCP300

9-38

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