LG LPC-LM340X, Руководство по обслуживанию

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6. TUNER PACK
Check the Tuner Power of
PN101 “Tu- B+”
Check the DC output of
“HIGH” Q818 “C”
Check the “high”
Q819 “B ”
Check the DC output
Q802 “E”, pattern
Replace Tuner pack
CE : Chip Emable
DI : Data Input(From u-com)
DO : Data Output(to u-com)
CLK : Tuner Mode Clock
Check the PN301 of
CE, DI, DO, CLK (PLL)
Is the normal?
END
YES
YES
YES
YES
NO
NO
NO