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Videoseven (V7) LTV32DA LCD TV black screen, blinking led

I'm trying this problem again, and hope a TV expert can help me..

The led in the front blinks 3 green 1 red, 3 green 1 red, 3 green 1 red, then continuous green. As it front blinks in a specific pattern I think it's a code pointing to what the problem is, but I can't find any info on what it means. Measured the voltages from the SMPS, and all seemed to be ok. I also found that the Samsung LNS3251DX/XAA uses the same LCD screen, so maybe solutions for Samsung sets would work on this one?

I don't know if this is of any help in finding info for this set, but the lcd-screen is marked LTA320W2-L01 and LTY320W2-L02, the main boards is marked LTV1280H1 Rev.B P/N:511-050-029100 and LTV1280H1_SUB Rev.B P/N:513-230-004000, and the SMPS is marked Kijin Electronics Co. Model: KJP2504B.

Please help me find out where the problem is...

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  • 2 more comments 
  • Geir Ove Eilertsen Feb 28, 2008

    I haven't been able to find any schematics for it yet, but still searching. The problem with it is black screen, no sound, just the blinking led. The set responds to the remote, that is: the led in front blinks when buttons are pushed, but nothing more. Voltages from the power supply seems to be ok.

  • Geir Ove Eilertsen Feb 28, 2008

    The voltages for the power supply are printed on the circuit board. There are three plugs and the first plug is marked S/W-gnd-gnd-gnd-gnd-+5v-+5v-+5v-s5v, second plug is marked s/w-gnd-gnd-gnd-12v-12v-12v and third plug gnd-gnd-gnd-gnd-18v-18v-18v-18v, but I think I'll have to measure them one more time to check if they are within 5%. Any more info would be very appreciated

  • mafia45 Jul 06, 2008

    my philips flat panel tv is blinking a red led only i can see is a blinking red led in the front and black screen

    sometime i play with the remol control on off on off and work help me to fix this problem please

  • Gynandtonix Oct 06, 2008

    Same fault -but i can sometimes access the menu screen.
    The sreeen 'starts up' and the slowly fades a couple of pixels at a time. it is as if it is not receiving enough power. I have checked for burn marks on the circuit boards - nothing.
    Does anyone know where i can find replacement circuit boards..?
    Any help would be appreciated
    Colin.


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  • Master
  • 979 Answers

That is correct in assuming that this is a code and it is related to that on-board processor protocol. Yes, many screens are used on many different chassis, but the ways to the means is not always the same. So, you have a schematic for this motherboard? What problem are you having with this set?....accordianman

Posted on Feb 27, 2008

  • 1 more comment 
  • Michael Borelli Feb 28, 2008

    Voltages must be within 5% for this chassis to work. What reference are you using if you have no schematic?

  • Michael Borelli Feb 28, 2008

    Okay, the references you need to read are those voltages but must be within 5% in order for the set to work. Bear in mind that those are all the "low" voltages and are not necessarily being converted as needed wherever high voltage is required...accordianman

  • Michael Borelli Feb 28, 2008

    Okay, the references you need to read are those voltages but must be within 5% in order for the set to work. Bear in mind that those are all the "low" voltages and are not necessarily being converted as needed wherever high voltage is required...accordianman

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