LG OLED97G2 Series Service Manual page 68

Standard Repair Process Detail Technical Manual
symptom
Content
Slave 2
Master
Checking order when there is no audio
1. Check the contact condition of or 20V connector of Main Board.
2. Measure the 13.2V output voltage from Power Board.
(If there is no input voltage, remove and check the connector.)
3. Connect 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
Voltage and speaker checking method
when there is no audio
P2011
②
Slave 1
Established
date
Revised
date
①
A12
1 SPK_R-_FT 2
3 SPK_L-_FT 4
5 SPK_R-_CT 6
7 SPK_L-_CT 8
9 SPK_R-_TW 10
11 SPK_L-_TW 12
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A12
SPK_R+_FT
SPK_L+_FT
SPK_R+_CT
SPK_L+_CT
SPK_R+_TW
SPK_L+_TW