9. All Source Audio
Check the TV Speaker Menu. | Off | |
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(Menu |
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On |
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| No | |
Check AMP IC(IC501) Power | ||
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24V or 20V or 15V, 3.3V |
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|
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ok
No
Check Mstar AUDIO_MASTER_CLK
R148.
ok
Check AMP I2C Line | No | |
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R140, R141. |
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|
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ok |
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| No | |
Check Mstar I2S Output | ||
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IC501 9,10,11 Pin. |
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|
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ok |
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| No | |
Check Output Signal P501 | ||
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1, 2, 3, 4 pin. |
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|
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ok
No
Check Connector & P501.
ok
Toggle the Menu.
Replace Amp IC(IC501).
Replace Mstar(IC101) or Main Board.
Check signal line. Or replace Mstar(IC101).
Check signal line. Or replace Mstar(IC101).
Replace Audio AMP IC(IC501).
Replace connector.
if found to be damaged.
Check speaker resistance and connector damage.
No
Replace speaker.
Copyright ©2012 LG Electronics. Inc. All right reserved. | - 19 - | LGE Internal Use Only |
Only for training and service purposes |
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