Checking order when there is no audio
1.Check the contact condition of or 13V connector of Main Board
2. Measure the 13V 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.
Standard Repair Process Detail Technical Manual
Voltage and speaker checking method
when there is no audio
C. Audio error_No audio/Normal video
A21
Established
date
Revised
date
Error
symptom
Content
A21
①
②
③
1
SPK_R-
2
SPK_R+
3
SPK_L-
4
SPK_L+
<50/65UH5500-UA>
②
50UH5500-UA
65UH5500-UA
Содержание 50UH5500 65UH5500
Страница 63: ......
Страница 66: ...Overview for 16 ULTRA HD Model K2Lp Hardware ...
Страница 68: ...LCD TV Repair Guide 16 years New Models Applicable Model UH55 ...
Страница 73: ...2 K2Lp Block Diagram Internal LGE Confidential ...
Страница 82: ...TROUBLE SHOOTING GUIDE ...
Страница 110: ...Appendix Exchange Power Board PSU No Light Dim Light Dim Light Dim Light No picture Sound Ok A 3 5 ...