LG MG180C Service Manual page 72

4.14.3 Checking PLL Circuit (Rx pass continued)
Check S _CLK,
S_EN, S_DATA
Signal is
norm al?
Yes
PLL circuit is OK .
See nest page to check
FEM & Mobile SW
S_EN
No
Down load SW
S_DATA
S_CLK
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4. TROUBLE SHOOTING
S_CLK
C542 C541
18p 8p R560
100
R561
100
S_EN
S_DATA
S_CLK
S_DATA
S_CLK
S_EN
S_DATA