Read LG 70LA8600-SA (CHASSIS:LJ34D) Service Manual online
Standard Repair Process Detail Technical Manual
Voltage and speaker checking method
when there is no audio
C. Audio error_No audio/Normal video
A16
Established
date
Revised
date
Error
symptom
Content
LCD TV
2012. 11 .17
when there is no audio
<Low models>
date
①
②
②
①
②
②
③
Checking order when there is no audio
①
Check the contact condition of or 24V connector of Main Board
②
Measure the 24V input voltage supplied from Power Board
(If there is no input voltage, remove and check the connector)
38 / 97
③
Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch the
GND and output terminal, the speaker is normal.
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