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

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Hyundai HLT-3210 POWER SUPPLY FAULT LOW OUTPUT FROM SUPPLY PCB

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.



    bob

  • 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. http://www.st.com/stonline/products/lite...



    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 rmcc@ntlworld.com

  • themekon Mar 01, 2010

    DID YOU GET A MAINBOARD FOR YOUR HYUNDIA

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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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I have a list of problems common to this series here:

Cause #1
1. (Lamp may light and go out) suspect bad lamp part # 915P020010 2. Check for
12-volts DC at J-9 connector pin 4 on the Engine Driver PCB, if missing check
for an open F9A09 on the Power PCB, if it is open replace F9A09 part #
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Engine part # 939P977010 6. Lamp enable line at connector J14 pin 6 on the
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after 5 seconds, 12 and 5 volt supplies are good. Suspect the Lamp Power PCB
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Engine Driver PCB switches to 5 volts after turn on but does not go back to 0-
volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Light
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I would start with #3, checking the 5 volt line and replacing the listed capacitors if needed.
Please be sure to rate this solution. Thanks!

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1 Answer

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Light Engine part # 939P977010 5. Lamp enable line at J14 pin 6 does not switch
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Engine part # 939P977010 6. Lamp enable line at connector J14 pin 6 on the
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1 Answer

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TRY THIS:

1. (Lamp may light and go out) suspect bad lamp part # 915P020010 2. Check for 12-volts DC at J-9 connector pin 4 on the Engine Driver PCB, if missing check for an open F9A09 on the Power PCB, if it is open replace F9A09 part # 283P127060 and the Light Engine part # 939P977010 3. (Lamp may light and go out) Check for 5-volts DC at J-9 connector pin 1 and 2 on the Engine Driver PCB if low or missing check C9A37 and C9A38 both 3300 UFD 10 V part # 181P732040 on the Power PCB (part # 930B921002) 4. At power on the lamp turns on and off three times and then the unit shuts down with a red lamp LED (lamp error). Replace the Light Engine part # 939P977010 5. Lamp enable line at J14 pin 6 does not switch to 5 volts after turn on, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977010 6. Lamp enable line at connector J14 pin 6 on the Engine Driver PCB switches to 5 volts after turn on and does go to 0-volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Lamp Power PCB (ballast) part # 939P978010 7. Lamp enable line at connector J14 pin 6 on the Engine Driver PCB switches to 5 volts after turn on but does not go back to 0-volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977010. Good Luck, big IRISH. back.gif

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1 Answer

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Good Day, davidsonkens;

Try the lamp first; to check try this:

1. (Lamp may light and go out) suspect bad lamp part # 915P020010 2. Check for 12-volts DC at J-9 connector pin 4 on the Engine Driver PCB, if missing check for an open F9A09 on the Power PCB, if it is open replace F9A09 part # 283P127060 and the Light Engine part # 939P977010 3. (Lamp may light and go out) Check for 5-volts DC at J-9 connector pin 1 and 2 on the Engine Driver PCB if low or missing check C9A37 and C9A38 both 3300 UFD 10 V part # 181P732040 on the Power PCB (part # 930B921002) 4. At power on the lamp turns on and off three times and then the unit shuts down with a red lamp LED (lamp error). Replace the Light Engine part # 939P977010 5. Lamp enable line at J14 pin 6 does not switch to 5 volts after turn on, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977010 6. Lamp enable line at connector J14 pin 6 on the Engine Driver PCB switches to 5 volts after turn on and does go to 0-volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Lamp Power PCB (ballast) part # 939P978010 7. Lamp enable line at connector J14 pin 6 on the Engine Driver PCB switches to 5 volts after turn on but does not go back to 0-volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977010. Good Luck, big IRISH. back.gif

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