4. TROUBLE SHOOTING
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Only for training and service purposes
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4.3 Checking TCXO Block
The output frequency (19.2MHz) of TCXO (X2001) is used as the reference one of RTR6285A and PM8029 internal VCO.
Schematic of the Crystal Part (19.2MHz)
TP2
10n
C2021
X2001
X1G003581002700
19.2MHZ
3
2
6
5
4
1
VC
VCC
TP1
TP2
GND
OUT
R2006
100
330p
C2024
27p
C2023
0.1u
C2009
C2008
1n
330p
C2022
VREG_TCXO_2.85V
TCXO_RTR_19.2MHZ
TCXO_NFC_19.2MHz
TCXO_PM_19.2MHZ
TRK_LO_ADJ
TCXO Circuit
CHANGE 1008
GPS DFF was removed.
CHANGE 11.03.02
Clesed to TCXO
change 0819
TP1
TP3
TP1
TP2
TP3