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LGE Internal Use Only
Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
5. SPDIF
Check the output (Pin E9) of LGE3159(IC100).
Measure waveform at R159 because it’s more easy to check.
Can you see the normal signal?
Check the input of JK601.
Can you see the normal waveform?
YES
NO
NO
This board has big problem because
Main chip(LGE3159) have some troubles.
After checking thoroughly all path once again,
You should decide to replace LGE3159 or not
After checking audio signal line,
yo u should decide to replace item or not.
YES
After checking the Jack, you should decide to replace item or not.
Summary of Contents for 55LH40
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