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4. TROUBLE SHOOTING
4.3 Checking TCXO Block
The output frequency (19.2MHz) of TCXO (X1000) is used as the reference one of RTR6285 and
PM6658 internal VCO.
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TP1
TP3
TP2
TCXO
VREG_TCXO_2.85V
TG-5010LH_19_2M_75A
EXSK0007802
2
GND
3
OUT
VCC
4
VCONT
1
X1000
19.2MHz
1000p
C1065
0.1uF
C1064
0.01u
C1067
1000p
C1062
100
R1018
1000p
C1068
TCXO_RTR_19.2MHz
TCXO_PM
TRK_LO_ADJ
Schematic of the Oscillator Part (19.2MHz)
TP2
TP1
TP3