LG KU950 - Page 83

4. TROUBLE SHOOTING
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Check 1. Crystal part
If you already check this crystal part, you can skip check 1.
Test Point (Crystal Part)
Schematic of the Crystal Part
100ohm
R128
1000p
C163
1000p
C157 C158
1000p
GND
2
OUT
3
4
VCC
1
VCONT
TG-5001LA-19.2MHz
X100
19.2MHz
100K
R127
C171 100p
VREG_TCXO_2.85V
1000pC162
U104
TC7S04FU
C159
0.1u
VREG_BT_2.85V
0.01u
C165
TCXO_BT
TCXO_OUT
TRK_LO_ADJ
TCXO_PM
TP1
TP2
TP3