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LG LG-E410 - Checking TCXO Block

LG LG-E410
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4. TROUBLE SHOOTING
- 36 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
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.
Schematic of the Crystal Part (19.2MHz)
19.2MHZ
X1G003581002700X2000
32
65
41
VC VCC
TP1 TP2
GND OUT
R2003 100
1n
C2005
C2009
10n
C2017 1n
21
C2006
0.1u
VREG_TCXO_2.85V
TCXO_RTR_19.2MHZ
TCXO_PM_19.2MHZ
TRK_LO_ADJ
TCXO Circuit
Clesed to TCXO
TP2
TP3
TP1
TP1
TP2
TP3

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