Haier HL22T Service Manual
Also see for HL22T: User manualService manual
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Contents
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voltage : +12V ,+12Vconnector:CN6（P6,P7）12.3 Main board failure checkState:No pictureFirst,check cables which connect with PSB and the Lvds wire with the panel.Second, check the output voltage of CN4Connector: CN4.State：No soundFirst，check cables which connect with Main Board，then check as followsFirst,check speaker anode(+) and cathode(-),confirm speaker short or not. If short ,replace speaker.Second,check CN1 with oscillograph, confirm wave output or not.Connector: CN1.12.4 Pannel failureFailure ModePart Name Description Phenomena Failure causeV B/D Vertical barVertal grayV Dim lineVertical colorBlock Defect :TCP cracking or crackingDim or L/D :TCP Sunken:TCP lead cracking:ACF bonding short:Awful environment and something electric enter intoLCD:Mis-align between TCP and PanelTCPV L/DH B/DH DimH L/Dline(light ordark forever)HorizontalbarHorizontalgary lineHorizontalline(light ordark forever):Panel failure:TCP failureFailure ModePart Name Description Phenomena Failure cause44 |
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