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Level 3 Repair
8-44
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Check the Voltage
@C213 or C253=2.9V?
8-3-21. Wi-Fi Rx/ Tx
Put more lead solder
each terminal
Check the connection
L211,C205,C204,
Rx: C234/ Tx: C235
Put more lead solder
each terminal
Put more lead solder
each terminal
NO
YES
NO
NO
YES
YES
Check TCXO CLOCK
@C249,C246=26MHz?
YES
NO
Can't make a call in WCDMA2100 network
Is the status of
BT_ANT O.K?
END
Can it wifi
activation & searching?
YES
Back to
previous step
Replace Board(PBA)
NO
Put more lead solder
@
BT_ANT(sharing Wi-Fi)