Question about Hyundai ImageQuest HQL320WR 32 in. HD-Ready LCD Television

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12 volt line reads 9.5 ,inverter supply reads 19 volt should be 24 volt. need help for another engineer, I do not have schematic.

Thanks Bob

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  • themekon Jan 24, 2009

    i will try disconnecting supply to inverter boards thanks for your reply email me at rmcc@ntlworld,com

  • themekon Jan 25, 2009

    all voltages read ok ,when power control pin is disconnected from main board. inverter is also working as I have supplied 6v to enable inverter . so looks like fault on main board.When control pin is reconnected all voltages dissappear.


  • themekon Jan 25, 2009

    Hello Ivica, when I disconnect red lead from power supply the one going to motherboard all power supply voltages are correct. this is the control voltage from motherboard ,it is reading 4.5volt from mb and switching of power suppy,any idea;s ?

    Regards Bob

  • themekon Jan 26, 2009
  • themekon Jan 27, 2009

    Will have to dismantle tv to read Mosfet numbers,however I think 2SK1118 are suitable . please note no output from power board if motherboard is faulty .to test this disconnect control lead from main board (red lead) and read voltages 24v 5v 12 v.

    can you email me on rmcc@ntlworld will be able to help easier

    Regards Bob

  • themekon May 12, 2009

    Did you ever get Tango /m/b for your Hyundia ,have my power supply fixed ,but main board faulty.

    Regards Bob

  • themekon Mar 01, 2010



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Hello! My name is Ivica,and I am from Croatia.I have same LCD which have problem with motherboard.Try to disconect power supply from inverters and then measure all volt line.Maybe failure is on inverters board!Write me if you solve the problem,and maybe you know where can I find new motherboard for my LCD.Thanks.

Posted on Jan 24, 2009

  • irozic Jan 27, 2009

    In contacts with my coleges in Slovenia,and Austria they told me that this model have problems with motherboard and only solution is to replace it! I try to repair it but problem is with processor,and I can not do anything.I found supllier for spare parts in Germany who have this motherboard and price is 231,55 euro.I also send inquairy to adress in Korea which produce them,and waiting for answer.Please if you can write me which two FET transistors are on heat sink in supply module which is drived by IC L6598??I have TV which was servicing before me by another mechanic,and he put into 2SK1118,and I do not know if they are original or not.Thanks!!!!


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