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 1-2. General GuidelinesWhen servicing, observe the original lead dress. If a short circuit is found, replace all partswhich have been overheated or damaged by the short circuit.After servicing, see to it that all the protective devices such as insulation barriers, insulationpapers shields are properly installed.After servicing, make the following leakage current checks to prevent the customer frombeing exposed to shock hazards.1) Leakage Current Cold Check2) Leakage Current Hot Check3) Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive1-3. Important Notice1-3-1. Follow the regulations and warningsMost important thing is to list up the potential hazard or risk for the service personnel toopen the units and disassemble the units. For example, we need to describe properlyhow to avoid the possibility to get electrical shock from the live power supply or chargedelectrical parts (even the power is off).This symbol indicates that high voltage is present inside.It is dangerous tomake any king of contact with any inside part of this product.This symbol indicates that there are important operating and maintenanceinstructions in the literture accompanying the appliance.1-3-2. Be careful to the electrical shockTo prevent damage which might result in electric shock or fire, do not expose this TV setto rain or excessive moisture. This TV must not be exposed to dripping or splashing water,and objects fi lled with liquid, such as vases, must not be placed on top of or above the TV.1-3-3. Electro static discharge (ESD)Some semiconductor (solid state) devices can be damaged easily by static electricity. Suchcomponents commonly are called Electrostatically Sensitive (ES) Devices. The followingtechniques should be used to help reduce the incidence of component damage caused byelectros static discharge (ESD).1-3-4. About lead free solder (PbF)This product is manufactured using lead-free solder as a part of a movement within theconsumer products industry at large to be environmentally responsible. Lead-free soldermust be used in the servicing and repairing of this product.1-3-5. 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 partsshown in the parts list.Safety Component● Components identifi ed by mark have special characteristics important for safety.Service ManualModel No.:- 03 - |
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Frequently asked questions
To perform a simple check on your Haier HL19KN2, refer to the section 9-1 in the service manual.
The resolution of the Haier HL19KN2 monitor is 1366x768.
The total power input for the Haier HL19KN2 monitor is 30W.
To connect a source device with DVI output to the Haier HL19KN2 TV, use an HDMI-to-DVI cable to connect the source device to the HDMI port of the TV. A separate audio connection is necessary. If the source device has an analog audio output connector, connect the source device's audio output to the DVI Audio In port located on the PC port. If the source device supports Auto DVI, the output resolution will be automatically set to 1280x720p. If not, manually set the output resolution to 1280x720p for the best picture quality. Press the INPUT button to select the HDMI input source in the input source option of the Select Main source menu.
To connect the Haier HL19KN2 to an AC power source, use the AC polarized line cord provided. Insert the AC cord plug into a standard polarized AC outlet. Ensure that the voltage matches the specified voltage for the unit.
If the polarized AC cord does not fit into your AC outlet, do not attempt to file or cut the blade. It is recommended to have an electrician replace the obsolete outlet with a compatible one.
To adjust the sound level, use the VOL+/VOL- buttons on the remote control.
The 'HDMI_5V' pin in the HDMI interface provides a 5V power supply, which is essential for the proper functioning of the HDMI connection. It ensures that the HDMI device receives the necessary power to operate correctly.
The DVB_S/MUX1_SW is a 2:1 switch that controls the input signals for the DVB_S and MUX1. It allows for the selection between DVB_S and MUX1 inputs based on the control signals provided.
The HD_AUD_SW1 is a switch that controls the audio input signals. It is connected to the +3.3V power supply and is likely used to select between different audio sources or modes, such as HD audio input.
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