Question about Zenith L23W36 23 in. HD-Ready LCD Television

2 Answers

Burnt IC's located on LCD backlight power supply board.

Where can I get a replacement for this board? Zenith says when they pull up the diagram it does not show a seperate board for this and I know it does because I unscrewed it from the LCD display back housing panel. This board contains the ballast power to power the backlight for the display panel. Please let me know if you know where I can get one.

Thanks, Derrell

D.C. Repairs

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  • Anonymous Oct 19, 2008

    my lcd screen coloursare mixed i am getting pink insted of white

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Try http://servicemanuals.vstore.ca/

Hope that helps! Should you have any further questions, please feel free to post them here.

P.S. - If you find that the solution/answer I provided led you to, or resulted in a fix, please close the ticket with a FixYa! rating. I would be very grateful for your show of appreciation.
If your issue is not resolved, please do not assign a rating just yet. Please post back as to what steps you took, results, etc, and I will try to assist you further as best I can. I am here at your service.

Thank you for using FIXYA!

Cheers!
IrishDruid

Posted on May 14, 2008

  • Swilin Sampson
    Swilin Sampson May 31, 2008

    Hello,





    This thread has gone 14 days or more without a response.
    Please close the thread with a “FixYa” or “Helpful” rating.





    Or post back with latest developments, what steps you took,
    etc. and I will assist you further as best I can.





    Thank you.


    IrishDruid




  • Swilin Sampson
    Swilin Sampson Jun 15, 2008

    Hello,



    Kindly close this thread with a “Fixya” rating if you have been able to
    fix the problem, so that I can remove it from my work queue.



    If the issue is not resolved, please post back with latest developments, what
    steps you took, etc. and I will assist you further as best I can.




    Thank you for understanding,

    IrishDruid




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At the near bestbuy store

Posted on May 14, 2008

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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
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It looks like the bulb in the screen is burnt out. The screen is completely dark when fully chared.


You can determine if the bulb is bad by simply connect a monitor to the fifteen pin AGP port located at the side of your computer usually color blue. If your computer display the desktop on the monitor,you should change the bulb in your computer display.To change the backlight you need to follow these steps :Power off your Toshiba laptop and make sure the AC adapter is unplugged.
Remove the screws on the side of your laptop screen. Once the screws are removed, you can remove the plastic bezel (screen guard).
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I HAVE A VIZIO 55" LCD TV WITH FLICKERING PROBLEM. THEY SAY ITS THE BACKLIGHT. CAN THE BACKKLIGHT BE CHANGED AND WHAT IS THE COST?


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http://en.wikipedia.org/wiki/Capacitor_plague

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1 Answer

I have a z20lcd1 tv and it has no picture


in the lcd tv there are three main parts
1)the inverter board(pannel)
2)the main board .
3)the power supply board.
----------
if there is no power at all them main board is faulty.if no front led light is coming ON there is no power .so the main board is not faulty.on the main board there is a fuse located you have to replace that and check first if still no power main board needs to be checked and replaced
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if there is sound but no picture and front led light is blinking then its inverter board panel problem.if this is your case replace inverter panel.its located in the lower side of the lcd in the inner area below the main board.
-----------
but if there is just front led light blinking , but no picture or sound then its power supply board problem.
------------
on power supply board there are some capacitors and ic located.if any of the component gets short or budged up then it short the power supply board.so you can check the components on power supply board with multimeter and get it replaced by using soldering iron.
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also you can get new replaCEment power supply board.this clears the problem completely.
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you can get the required board and components at ----- www.partstore.com -------- or from ------ www.radioshack.com ----
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if you are not familiar with doing this you can get it done by local tv repair technician familiar with this model tv.

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I have an old Zenith L30W36 that wont show anything.


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I can't say it's 100% the problem because I can't actually look at the tv over the internet.

If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

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2 Answers

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