Read LG 32LG710H (CHASSIS:LA95A) Service Manual online
Check JK1704, JK1701
Can you see the normal waveform?
Can you see the normal waveform?
NO
JK1704, JK1701 may have problem. Replace this Jack.
Check the input (Pin AB11,AM19) of BCM3549(IC101).
Measure waveform at C1109 because it’s more easy to check.
Can you see the normal waveform?
Measure waveform at C1109 because it’s more easy to check.
Can you see the normal waveform?
YES
This board has big problem because Main chip(BCM3549) have some troubles.
After checking thoroughly all path once again, You should decide to replace BCM3549 or
not.
After checking thoroughly all path once again, You should decide to replace BCM3549 or
not.
AV Video Trouble shooting guide
YES
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