Read LG 32LG30 (CHASSIS:LA85D) Service Manual online
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8. All Source Audio
9. Digital TV Audio
Check Mstar I2S Output
R1048, R1050, R1051
Check IC501 Power 16V, 3.3V, 1.8V.
Yes
Yes
Make sure you can’t hear any audio.
Yes
Check Connector & P500
Check signal line. Or replace IC100.
No
Check Output Signal L503, L504
Yes
Replace NTP or check output line.
No
Replace connector if found to be damaged.
No
Yes
Check speaker resistance and cone
damage.
Replace speaker.
No
Check Video output.
Follow procedure digital TV video
trouble shooting guide.
trouble shooting guide.
No
Yes
Follow procedure All source audio
trouble shooting guide.
Replace Mstar IC.
No
10. Analog TV Audio
Check Video output.
Follow procedure digital TV video
trouble shooting guide.
trouble shooting guide.
No
Yes
Check SIF buffer signal.
Check SIF Signal line.
No
Yes
Follow procedure All source audio
trouble shooting guide.
Replace Mstar IC.
No
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