LG A395 - Page 59

4. TROUBLE SHOOTING
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Only for training and service purposes
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(1) Checking Crystal Circuit
Figure 4.2.1
26 MHz
O.K?
Replace TP1
No
Crystal is OK.
See next page to check PLL Circuit
Yes
TP1
P23
U23
W15
AB16
AC16
AA16
W24
W23
TXO_LB
TXO_HB
CLK_SEL
XTAL1
XTAL2
FREF
MICBIAS1
MICBIAS0
26MHz
X101
TSX-3225 26MHZ_7_4PF
21
34
VMIC_BIAS_P
EARMIC_BIAS
1u
C132
LowBand_Tx
HighBand_Tx
TP1