LG LG-D855 - Page 138

3. TROUBLE SHOOTING
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START
No
No
Check Next step
Check TP1 2.7V OK?
Check TP2 1.4V≤TP2≤3.0V?
The Problem may be Other part
Check Logic part
The Problem may be Other part
Check Logic part
Yes
Yes
L1137
82n
2
DNIL1154
C1427 DNI
1
2
U1102
R155
8
7
6
5
9
4
3
1
2
GND1
ANT
VCC
VEN
GND3
GNSS_B
GNSS_A
GND2
CELL
+2V7_VREG_L16
0.1uC1428
DNIC1426
1
2
0.5p
L1155
C1118
1.8n
C1460
100p
GNSS_ELNA_EN
TP2
TP1