Question about Akai LCT3785TA 37 in. LCD HDTV

2 Answers

Blown SK24 and SK1 on the powersupply model# Mlt386x.

What are the replacement parts?

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  • d_namiranian Aug 01, 2010

    Blown SK24 and SK1 on the power supply model# Mlt386x out of 37" SCOTT LCD TV. I would like to know what are the replacement part numbers.

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2 Answers

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  • Master
  • 10,594 Answers

Hi,
Complete power supply board replacement is good because component level repair is not possible because spare parts are not available.
Let me know if you want to replace complete power supply board to provide you further info.
Thanks.

Posted on Aug 01, 2010

  • 7 more comments 
  • d_namiranian Aug 01, 2010

    Hi,

    you did not answer my question. Why SK24 and SK1 are blown? what are these two parts? Why the repair is impossible? How much these boards cost?


  • Shahid Electronics
    Shahid Electronics Aug 01, 2010

    Repair is not possible because there is no schematics available for this power supply.
    When drive signal of FET got disturbed for some reason, FET got shorted instantly.
    Power supply board is available for $122



  • d_namiranian Aug 01, 2010

    Hi,

    I am a Technician and I have checked the QA1, which the part number is 20N60 and it is good. Is this what you concern about?


  • Shahid Electronics
    Shahid Electronics Aug 01, 2010

    Yes, I was concerned about that FET
    Do you have service manual of LCT3785TA?



  • d_namiranian Aug 01, 2010

    No,I do not have service manual. Most of the service manuals
    are worthless. I don’t think technician
    should use service manual as long as she or he understand how the system works. I need the schematic diagram and all I need
    to know what is the SK24 and SK1 part number.




  • Shahid Electronics
    Shahid Electronics Aug 01, 2010

    OK, right now I do not have service manual but trying to have a copy. If you can wait for few hours then I might be able to provide you helpful info after looking into schematics.
    Thanks.


  • d_namiranian Aug 01, 2010

    OK!

    I will be waiting for your reply.

    thanks.


  • Shahid Electronics
    Shahid Electronics Aug 01, 2010

    ok, I'm waiting service manual delivery email.

  • Shahid Electronics
    Shahid Electronics Aug 01, 2010

    as I explained before, service manual does not have schematics for power supply section. I received service manual copy and there is no power board schematics.




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  • Akai Master
  • 6,993 Answers

Hello,

please can you rephrase this question so that an accurate solution can be proffered? I don't really understand the question and its not clear enough.

I look forward to your reply.

Bye for now.

Posted on Aug 01, 2010

  • Walesarumi
    Walesarumi Aug 01, 2010

    Blown SK24 and SK1 on the power supply model# Mlt386x out of 37" SCOTT
    LCD TV. I would like to know what are the replacement part numbers.

    Hello,

    I just saw your comment have I have sent my first post.

    The replacement part you need to by is a complete power supply board. Replace the whole power supply board will be the best part to buy because if apart from the blown SK24 and SK1, other components as well might be defective on the power supply board. So replacing only the SK24 and SK1 might not solve the problem.

    Therefore, replace the power supply board.

    I hope the above makes sense to you.

    Good luck.


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