Voltage And Speaker Checking Method When There Is No Audio - LG 32LN5400 Service Manual

Standard Repair Process Detail Technical Manual
LCD TV
<ALL MODELS>
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)
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.
Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Error
C. Audio error_No audio/Normal video
symptom
Voltage and speaker checking method
Content
when there is no audio
②
②
Established
2012. 11 .17
date
Revised
date
①
③
A16
LGE Internal Use Only