Haier L42A9 Service Manual
Also see for L42A9: Owner's manual
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Contents
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22Abnormal DisplayNo SoundCheck TV system setupReset sourceNGReplace the filter or resistanceRF signalCheck TunerReplace TunerCheck LVDS cableCheck inputReplace LVDS cableCheck panel Replace panelOKOKNGOKOKNGOKOKNGOKCheck the source Reset sourceNGOKCheck input signal TV SIF Check TVsystem Reset TV systemNGCheck TU100 NG Change TU100Check U400 OKOK Change U400NGCheck U603OKNG Change U603Check speaker NGChange speakerCheck if muteOKCheck signal filter circuitCheck the sourceOK |
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