Read LG 47SL90-UA (CHASSIS:LA92S) Service Manual online
LA92S Trouble shooting guide – SPDIF
Audio(Out)
Check the output (Pin E9) of LGE3369(IC601).
Measure waveform at R656 because it’s more easy to check.
Can you see the normal signal?
Measure waveform at R656 because it’s more easy to check.
Can you see the normal signal?
Check the input of JK104.
Can you see the normal waveform?
Can you see the normal waveform?
YES
NO
NO
This board has big problem because Main chip(LGE3369) have some troubles.
After checking thoroughly all path once again, You should decide to replace LGE3369 or
After checking thoroughly all path once again, You should decide to replace LGE3369 or
After checking audio signal line, you should decide to replace item or not.
YES
After checking the Jack, you should decide to replace item or not.
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