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 (X2000) is used as the reference one of RTR6285 and PM8029 internal VCO.
X2000
X1G003581002700
19.2MHZ
3
2
6
5
4
1
VC
VCC
TP1
TP2
GND
OUT
R2003
100
C2005
1n
C2009
10n
C2017
1n
C2006
0.1u
VREG_TCXO_2.85V
TCXO_RTR_19.2MHZ
TCXO_PM_19.2MHZ
TRK_LO_ADJ
TCXO Circuit
Clesed to TCXO
TP1
TP2
TP3
TP1
TP2
TP3