No Coaxial Output Audio - LG LST-3100A Service Manual

3) NO COAXIAL OUTPUT AUDIO

5V is supplied to Q100(3)?
YES
SPDIF pulse is output from IC200(F3)?
Fig. 07
YES
SPDIF pulse is output from Q100(1)?
Fig. 08
YES
Check CN300(S6, G6) and their
surroundings
NO
Check Power Supply Part
NO
Check IC200 and surroundings
NO
Check Q100, Q101 and surroundings
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