LG OLED65G7P - DETAILED REPAIR PROCEDURES: AUDIO ERRORS; Audio Error: Speaker and Voltage Check

Standard Repair Process Detail Technical Manual
Voltage and speaker checking method
when there is no audio
C. Audio error_No audio/Normal video
A12
Established
date
Revised
date
Error
symptom
Content
A12
Checking order when there is no audio
① Check the contact condition of or 20V connector of Main Board
② Measure the 20V 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.
②
1
SPK_R-_FT
2
SPK_R+_FT
3
SPK_L-_FT
4
SPK_L+_FT
1
SPK_R-_TW
2
SPK_R+_TW
3
SPK_L-_TW
4
SPK_L+_TW
5
SPK_R-_WF2
6
SPK_R+_WF2
7
SPK_L-_WF2
8
SPK_L+_WF2
9
SPK_R-_CT
10
SPK_R+_CT
11
SPK_L-_CT
12
SPK_L+_CT
①
③
①
③
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