Samsung GT-i9000B Service Manual page 45

Level 3 Repair
8-3-8. BT/WIFI
BT/WiFi is not working
Check BT or WiFi function
Check the Voltage on C162 =
Check 38.4MHz Clock at
C heck the Voltage on L113 =
Check the Status of C138,
L124, ANT106
Resolder or Replace U105
ON
Yes
2.8V
Yes
C177
Yes
1.2V
Yes
Yes
Yes
END
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No
Enable BT or WiFi Function
No
Check AP PMIC(U503)
No
Check OSC 102
No
Resolder or change L113
No
Resolder or Replace C138, L124, ANT106
8-18