TCL L24D20 Service Manual
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Picture OK, allsource no soundCheck the voltage ofpin 3,13 of U6022.1* Repair the 12v supplyCheck the pin 6 of u6022.1*Check q607,q608,q6091*2.Replace U602 or replacethe wire of speakercheck u601 andvolume controlCheck the wave of PIN 4,12 of U602Check the pin 7 of u6022.1*repair R691 and R692 |
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