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Flow Chart of Troubleshooting
9-12. WLAN Part
WLAN Connection disable
check the Voltage at
C131 (3.8V,VBAT),
C128 (2.9V)?
Yes
Check WLAN function
ON
Yes
C171 = 26MHz and
TP402 =32.768KHz ?
Yes
Check the assembled
staus of ANT102
Yes
Resolder or Replace the U102 or
UCP300
END
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No
Check U400
No
Resolder or Replace the U102
No
Resolder or Replace the U102 or
Resolder or Replace the U104
No
Resolder ANT102 or change
SPK MODULE
9-28
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