Haier HL42XR1 General Guidelines, Important notice, Follow the regulations and warnings

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1. General Information

1-1 General Guidelines

When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

1)Leakage Current Cold Check

2)Leakage Current Hot Check

3)Prevention of Electro Static Discharge(ESD)to Electrostatically Sensitive

1-2 Important notice

1-2-1. Follow the regulations and warnings

Most important thing is to list up the potential hazard or risk for the service personnel to open the units and disassemble the units. For example, we need to describe properly how to avoid the possibility to get electrical shock from the live power supply or charged electrical parts (even the power is off).

This symbol indicates that high voltage is present inside. It is dangerous to make any king of contact with any inside part of this product.

This symbol indicates that there are important operating and maintenance instructions in the literture accompanying the appliance

1-2-2. Be careful to the electrical shock

To prevent damage which might result in electric shock or fire, do not expose this TV set to rain or excessive moisture. This TV must not be exposed to dripping or splashing water, and objects Filled with liquid, such as vases, must not be place on top of or above the TV

1-2-3. Electro static discharge (ESD)

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such Components commonly are called Electrostatically Sensitive (ES) Devices. The following tech-niquesshouldbeusedtohelpreducetheincidenceofcomponentdamagecausedbyelectro

Static discharge (ESD).

1-2-4. About lead free solder (PbF)

This product is manufactured using lead-free solder as a part of a movement within the consum-er products industry at large to be environmentally responsible. Lead-free solder must be used in the servicing and repair of this product.

1-2-5. Use the genewing parts (specified parts)

Special parts which have purposes of fire retardant (resistors),high-quality sound (capacitors), low noise(resistors), etc. are used.

When replacing any of components, be sure to use only manufacture's specified parts shown in the parts list.

Safety Component

• Components identified by mark have special characteristics important for safety.

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Contents Customer Model HL42XR1 Service Model HL42XR1a Contents Trouble Important notice General GuidelinesFollow the regulations and warnings Safety Check after Repairment Using IconsOrdering Spare Parts Photo used in this manualLocation of Controls and Components Main Board & AV Board Function Description Main BoardCN1 +3V3SB 41 D ON/OFF Hrst Lvds Reiver Signal C+ DescdionNo Conntign No Conntien No Conntion No ConneXion Exmal VBR From SystemVlcd Remove the Pedestal Remove the speaker Remove the Terminal Bracket2Remove the Back Cover UnitRemove the power module Remove the one screw, take out the remote Control boardRemove the Main board Remove the keypad controlAccessories Externa Equipment ConnectionsExternal Equipment Connections Choose Your ConnectionDVI Audio External A/V Source SetupVGA Digital Set=top Box Video Audio R Audio -R Video L-AUDIO RConnecting a computer HDNll and DVI Connection Cable sample Wider Hole and Blade Connecting HeadphonesPolarized AC Cord Plug Basal information HL26K1/HL32K1/HL32XK1/HL42XK1@ @ Oo @ Back panel connectionsFunction introduction Setting Up Your Remote ControlMTS/SAP FRE£ CHL/SI Guide CCD ARC Favorite Block diagram Circuit DiagramMT5380 DDR1 LOOoF,lOV ----0.1oF lOOK 71CO4O2/SMD OUTCE3O CO4O2/SMDDV33 UI3D USB5VUSB DP USB on?,5 Bx4?56 PDDoR120 o?,5,5 RX0CB N RX0C N RX0 IB N RX0 I N RX02B N RX02 NRX0CB RX0C131415 315 12V1234581O15 23581O13 AV33 124781O13 3V3SBYpbprolin DVD¥1CNC4 HS-SA-W SI320,HAIER DvdlR187 R158,A.27 ?00 ?orII.........A LIOPC9 TJCS3A/NC DvddTest CNCC4zuF16v/ 5H7 £10UWAMPWiring Connection Diagram Pov,,,,pp modoiMeasurements and Adjustments How to enter into Service ModeVideo Page Page Backlight Backlight adjust the backlight Page Simple check System Programblack White Refer To relativePower Supply Board failure check Main board failure check State No SoundState= No picture No Raster on PanelPannel failure FailureConnect Badness Between Wire Electrode Shortbetween wire and electrodePannel and vsc connect bad Maybe caused by surge current and EDSPart Name Description Phenomena Failure cause B/L unitScrew Sincere Forever
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