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Flow Chart of Troubleshooting
9-29
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9-9. WLAN Working
NG
NO
YES
NO
YES
NO
YES
YES
OPERATE WLAN
ANT106, R150, R151
are OK?
R140,R142 are OK?
PIN4 in U517=3.3V
PIN8 in U509=3.0V
PIN7 in U509=1.8V
While operating WLAN
WLAN Intenna on Rear
Case is OK?
Replace or Resolder the
ANT106, R150, R151
Replace the WLAN
intenna
Check neighboring circuit
and Replace U517,U509
or neighboring parts
Replace or Resolder R140,
R142
Replace MOD101