LG 29FS2RMB-TP Service Manual page 18

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DON'T CATCH CHANNEL(MAIN)
Check the voltage at
pin9 of TU101.
Check/Replace
R403, D402, R135, ZD102.
Check the waveform at
pin19 of TU101(Video).
Check/Replace
TU101.
Check/Replace
IC201, IC101.
DON'T CATCH NTSC-M(OPTION)
Check the voltage at
pin 14 of TU101.
0V
CHECK/REPLACE
TU101.
Check the voltage at
pin13 of TU101(5V).
Check/Replace
IC840.
Check the waveform at
pin63 of IC201(TV).
Check/Replace
Q106, Q225.
3.3V
CHECK/REPLACE
IC001(D), IC100(M).
DON'T CATCH SECAM-L(OPTION)
Check the voltage at
pin 14 of T101.
2.5V
CHECK/REPLACE
TU101.
0V
CHECK/REPLACE
IC001(D), IC100(M).

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