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Sanyo dp46840 LCD TV, Green power led is the only life the tv has.. I opened it up and checked all fuses and CAP's I tested the power supply and i get 5V stb ps_on 12v 15v As they are listed on the board. This power supply has the lamp ballast on same board.

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  • Matthew Albert
    Matthew Albert Mar 27, 2011

    Yes i can turn it on and off,, but when the tv is off there is no red stanby LED, I dont know if there should be a red led on this set or not

  • Matthew Albert
    Matthew Albert Mar 30, 2011

    can you help me find the main board?



    sanyo

    1aa4b10n22900_c

    n7eee

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  • Master
  • 4,889 Answers

Are you able to turn it on and off even though you cannot see/hear anything?

Posted on Mar 26, 2011

  • 1 more comment 
  • eagle338
    eagle338 Mar 27, 2011

    Well there should be an LED blinking if there was a power failure. Since you have nothing of that sort then its most likely to be the Main A/V board. So here's the plan. One of our experts has written a comprehensive troubleshooting guide. So instead of writing the wholething again I a linking you to it
    http://www.fixya.com/support/r5093881-lc...
    Try the mainboard diagnostics and let me know your observations

  • eagle338
    eagle338 Mar 30, 2011

    Well I have looked up every store I knew and it was out of stock everywhere. I will keep looking an dlet you know if I find something

  • eagle338
    eagle338 Mar 31, 2011

    Nothing. The way to go would be to contact Sanyo directly for the part as the board with the tuner n7EEE is nowhere to be found. Or atleast you can verify if any other alternate part is compatible with this tv.

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1 Answer

TV won't come on at all. Getting power to where it plugs into the computer board. Beyond that I don't know how to test. Can you tell what to check next?


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
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The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
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My flat screen sanyo tv screen wont turn on. the green power light is on but not the screen. any solutions?


Try disconnecting the connector KBL on the main board as shown in my picture #DSCF0585 to see if the backlights will come on, if it does, the main board is bad.
Also check the voltages on the output connectors of the power supply.
http://s807.photobucket.com/albums/yy352/budm/SANYO%20TV%20DP26649/

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

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I have same problem. Walmart is selling Sanyo junk You are not alone lots of web chatter about these lasting 2 years or less, Mine lased 19 months, Trash it & buy a different brand. I originally was going to buy a Samsung & now I will.

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