Table of Contents
Advertisement
Standard Repair Process Detail Technical Manual
easure the 13.2V input voltage supplied from Power Board
there is no input voltage, remove and check the connector)
Checking order when there is no audio
1.Check the contact condition of or 13.2V, 20V connector of Main Board.
2. Measure the 13.2V input voltage supplied from Power Board.
(If there is no input voltage, remove and check the connector.)
3. Connect the tester P5600 to the speaker terminal and if you hear the 'Chik~ Chik~' sound
when you touch the GND and output terminal, the speaker is normal.
Error
C. Audio error_No audio/Normal video
symptom
Voltage and speaker checking method
Content
when there is no audio
②
A12
Established
date
Revised
date
①
③
Speaker
1
SPK R-
2
SPK R+
3
SPK L-
4
SPK L+
Copyright © 2019 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
A12
Advertisement
Table of Contents
