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