Question about Syntax LT30HV 30 in. HD-Ready LCD Television

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Syntax LT30HV My Olevia (Syntax LT30HV) flashes a blue screen for about a second at startup, then goes to black. The sound is fine.

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  • gques1965 Mar 20, 2008

    I have the same problem and it happened 13 months after I purchased the TV.



    Syntax refused to help!! NEVER PURCHASE THIS BRAND AGAIN!!

  • woody 56 Mar 30, 2008

    syntax lt 30 hv

    after 3 years the power button had to be held in and the screen flashed blue and then wnet blank it did this for about a week and now the tv does not start up at all. i've been trying to find a service person but have had no luck so far.

  • doctvinc Jun 24, 2008

    the tv goes on then the blue screen flash for a second then goes black.

  • gnspangler Dec 07, 2008

    Have same problem but no sound also.

  • Anonymous Apr 16, 2009

    my LT30HV will come on but the sleep timer shuts off the tv every time in about 10 minutes is there a quick fix for this problem

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I know it's been a long time since people posted here but the answer is an easy one. On the inverter board you will see a chip that says "OZ960" on that chip you need to solder an led from pin 10 to pin 16. I used digikey's part number L10041-ND. I could get into the technical reason but this fix does work.

Posted on Dec 31, 2009

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Thank You TrippinHrd.
I never work on circuits and not good at soldering. I Printed out the PDF for the OZ960 Chip transformer thing on the center of the inverter board. I Bought just a random 1.9- 2.4V max LED from radio shack for like 2 bucks. Used small strands of wire to connect to the pins 10 and 16. (ripped a speaker wire open and put 3 single strands around each pin...pain in the ***, i couldnt solder that small thing so close to the board.... Then soldered the other ends of the wires to the LED. Tested the polarity of the led with a AA battery. According to the chip diagram pin 10 (labeled CMP) is where you connect the + and the pin 16 (labeled PGND) is the - on the LED. If you cant find the PDF there is a small circle in the bottom left on the top of the chip if you look close. That is pin 1 and it goes CCW around to 20. When you push power on the TV the LED glows very bright. and to my utmost amazement, it friggin worked. TV runs great now.
I was friggin excited this worked. I honestly was skeptical on account that i did a bootleg wire job and the comment above said it didnt work. If you do it correct it should work nicely.

THANKS again TrippinHrd

Dan

Posted on Dec 16, 2011

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I will try the solution #3 unfortunately DigiKey is out of L10041-ND, but Mike (a great tech rep) suggested an alternative pointing out another product with the closest specs to the unavailable part. That's the L10061-ND which I will buy and try in this fixya experiment.
I would have loved if Trippinhrd could have let us know why/what led him to that solution...also if it has worked for anyone else, please post if your Olevia is still going.
I will put a followup with my results once I get to apply the fix described by Trippinhrd (and btw thx for sharing!) ;D

Posted on Jul 22, 2010

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  • freakqnc Jul 29, 2010

    Well as promised here an update on Solution #3 that I have tried and nothing has changed besides the fact that I wasted a couple hours disassembling the TV soldering the LED in place and reassembling the TV.


    So I am back on square one. The TV works fine as long as it warms up for 15~20 min. before that it's a black screen with audio... so I listen to the news as if it was a radio for the about a half hour, then I can watch TV ;P


    Will not fix it because the part costs $150+S&H and spending that kind of money on an old TV (bought for $1500 back then) when it has not even an HDMI nor is 1080 native... plus considering that the new LCD TV cost less than $500 is a no brainer! Anyone interested in buying off mine cheap? LOL!

  • Zackalgg Jan 11, 2011

    What you described really sounds like an inverter problem, which needs the board to warm up and the CCFLs to take less current. In that case, I think solution #3 should work, since it simply disable the protection function of OZ960. Did you pay attention to the diode direction?

  • freakqnc Jan 12, 2011

    Problem that seemed unsolvable solved with lot of patience and re-soldering.

    1) Tried adding LED solution and did not work as described. My results where that the TV would stay on for a while (less than 15m) then would completely go black, as the inverter wasn't receiving power while audio and LCD itself were on. I could see the LCD being on shining a flashlight on its back while it was disassembled. When the whole thing was reassembled, banging on the back of the TV (in correspondence of the power supply and inverter board), I noticed through a vent grill, that the LED was lighting up with each hit... but would not stay on.. therefore no power was being fed to the inverter board and the failure may have lied in the power supply itself.

    2) So thinking it was an improper contact, a defective connection, or a cold solder gone sour after years of use, I took the inverter board out and re-soldered every single connection on the PCB and I mean all of them! I removed as much as the old solder as possible and added fresh quality solder by hand, making sure it was hardening "chrome-shiny", because opaque appearance of the solder would indicate often a bad solder or a cold solder with poor electrical connection quality. Then I did the same on the PCB of the power supply.

    Note: If you do that make sure to discharge the capacitors, or just be extremely careful never to shorten the leads of a capacitor and in general be careful and if you do not know what you are doing, ask a professional or a friend who knows the risks connected to work with electronic boards involving the components of a power supply and an inverter board... the obvious recommendation is to ALWAYS unplug any circuitry before starting to work with it.

    The TV has been working since September and has had absolutely no problem. I hope this will help all the other fellas who are still looking for a solution.

    If you are in NYC and can't manage to fix the TV on your own, I could give a shot at fixing it for you. If you want me to try and do that for you, drop me a line at: santaggiusta@gmail.com so we can coordinate the logistics. To give you all the info, the charge would be $75 to come on premises anywhere in the 5 boroughs.

  • W2CO
    W2CO Sep 02, 2014

    We had exactly the same symptoms, led but no audio or pic -just black, we took out the ps and found D1 cathode to be barely soldered, but also p3 on one of the connectors had pushed in during wave soldering at the factory, this is one of the +12v lines to the set. Re soldered pin and pulled it up to be same height as the other pins. Now good as new, don't know which one was causing the problem (pin or diode), but the ps had a qc "ok" sticker on it...w2co

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Syntax's line of garbage (...'cant be fixed, buy new') is just that - garbage.

http://www.lcdparts.net/LCDTVInverterdetail.aspx?InverterOriginal=V144-001

This can be fixed - part costs $179 from this site.

If you can take apart a computer/tower, you can replace this part, although I wouldn't say it is 'easy' as this website says. For me, took about 1 hour to disassembled it, bag the parts and screws with identifiers and pictures, and another hour to put it back together.

Yes - you will eventually need to buy a new TV, but you can at least limp along for another 12-24 months saving for a TV sold and serviced by a reputable company.

Posted on May 26, 2008

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The same thing happened to me when I first bought the television and they replaced it with a new one. I've had no problems for 3 years and now the screen flashes blue and I have no video, just audio. Called customer service and they said that it is probably an "inverter" issue and it's going to be so expensive for the part that I should just consider buying a new television.

Posted on Feb 23, 2008

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1 Answer

Have power and sound, but no picture. Syntax Olevia LT30HV 30


Common problem unfortunately. That's you need a new inverter board. You can have it repaired or if you are savvy enough you can replace the inverter yourself. The inverter board costs about $150 at lcdparts.net
Good luck!

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http://en.wikipedia.org/wiki/Capacitor_plague
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To test, take a bright flashlight and point it at the screen just an inch or so off the surface. If you can see your picture, then you have a blown inverter.

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Everyone - this happens to EVERY LT30Hv, and is fixable despite what the **** idiots at Syntax. They are not a TV manufacturing company, they are an import/export holding company with a freaking LOUSY website. http://www.lcdparts.net/LCDTVInverterdetail.aspx?InverterOriginal=V144-001 This is the part you most likely need. If you can work on a computer, you can probably fix this yourself. I'm helping everyone I can help with this to shove it down Syntax's throat. I am in the midst of performing and documenting my second repair of this same procedure, and will post on Flickr when I can get it up.

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