Bluetooth Working - Samsung SGH-I907 Service Manual

10-7. Bluetooth Working

Operate BT
Ant103 and
L119 O.K?
Yes
Pin 6 in U101=3.3V
Pin5 in U101=1.8V
While trying to
operate BT
Yes
Replace MOD100
COMBO_EN
No
No
VBATT
U101
1
VOUT1
VIN
2
GND
VOUT2
3
EN2
EN1
GND
7
C199
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Replace or Resolder Ant103 and L119
Change U101
VCOMBO_3.3V VCOMBO_1.8V
6
5
4
C1101
10-23
Flow Chart of Troubleshooting
C1102