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3.3 Checking TCXO Block
The output frequency (19.2MHz) of TCXO (X2000) is used as the reference one of RTR6285 and PM8029 internal VCO.
TP1
TP2
TCXO Circuit
Clesed to TCXO
R2003
TRK_LO_ADJ
LGE Internal Use Only
TP3
X2000
X1G003581002700
100
VC
TP1
C2009
GND
10n
19.2MHZ
TP2
Schematic of the Crystal Part (19.2MHz)
C2005
1n
VCC
TP2
OUT
C2017
- 27 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
VREG_TCXO_2.85V
TP1
C2006
0.1u
TCXO_PM_19.2MHZ
1n
TCXO_RTR_19.2MHZ
TP3
Only for training and service purposes
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Troubleshooting
