LG 65LX570H Service Manual page 20
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Also See for 65LX570H:
- Commercial mode setup manual (71 pages) ,
- Owner's manual (44 pages)
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5. AV Video Trouble Shooting guide
Check input signal is supported format
Y
Check AC cable for damage or open conductor
Y
Check JK5001
Can you see the normal waveform?
Y
Check the input of Mstar(IC101).
Measure waveform at C227 because it's more easy to check.
Can you see the normal waveform?
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LG Electronics. Inc. All rights reserved.
Only for training and service purposes
N
JK5001 may have problem. Replace this Jack.
Y
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This board has big problem
because Main chip (Mstar) have some troubles.
After checking thoroughly all path once again,
You should decide to replace Mstar or not.
LGE Internal Use Only
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