LG KM500 Service Manual page 47

4. Trouble Shooting
4.2.1.2 DCXO Circuit
X400
U402
U404
SW400
FL400
DCXO
C409 26MHz?
NO
Check U402
LGE Internal Use Only
TP3_RF TP6_RF TP7_RF
U401
U400
U403
YES
DCXO is O K.
C405 C409
68p
33nF
XON
GNDVCXO_OR
VOUTEF2
VCCVCXO
VOUTEF1
<Fig.22> DCXO Circuit Diagram
C 409
Copyright © 2008 LG Electronics. Inc. All right reserved.
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TP3_RF
B9
C8
D7
0.1u
C9 C418
D8
SLICER_IN
D9
Only for training and service purposes