LCD TV Picture Out

dorokusai
dorokusai Posts: 25,576
edited October 2011 in Electronics
Our small kitchen LCD just stopped displaying picture but I have sound and channel changing ability. It's not outlet or cable box related. Do you believe it's just the bulb and beings it's not that large, is it worth replacing that part at all? Anone fix a small LCD by any chance? Does it even have a bulb? I have no idea.
CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
Post edited by dorokusai on
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  • txcoastal1
    txcoastal1 Posts: 13,497
    edited October 2011
    Generally when a flat screen goes out its usually the power supply (we have repaired a few sitting by the dumpster for $60-$80), but in your case it sound a little more involved. But generally speaking the small sets are ususally not worth fixing. FYI I am not a TV repair guy
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
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  • tonyb
    tonyb Posts: 33,064
    edited October 2011
    I would tend to agree on the power supply. Pretty much makes them throw aways. My power supply on my samsung 22 in computer monitor is on the way out, to have someone repair it costs more that a new screen. Less than 5 years old too.
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  • Drenis
    Drenis Posts: 2,871
    edited October 2011
    doro,

    take a bright flashlight and shine it against the panel. Anywhere from 4-12" should generate enough luminance to see if the back light failed. The flashlight should show the pixels changing in the panel. If you still can't see anything, then it may be what others have suggested or something else. I would think a back light would be a hell of a lot cheaper then something else for repair.
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  • dorokusai
    dorokusai Posts: 25,576
    edited October 2011
    Drenis - I'll try that, thanks. For the size, 15", I've found them for $100 so I don't think I'll waste too much time.

    Wouldn't the power supply cause everything to not work? That backlight comment makes sense....is that just a weird or specialized bulb? I've never opened one up. I thought the whole panel was a charged source.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • txcoastal1
    txcoastal1 Posts: 13,497
    edited October 2011
    It's not the power supply, but on a smaller flat panel that would be the only thing I would even think about replacing before just buying a new one
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC

    erat interfectorem cesar et **** dictatorem dicere a
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  • dvran
    dvran Posts: 280
    edited October 2011
    txcoastal1 wrote: »
    It's not the power supply, but on a smaller flat panel that would be the only thing I would even think about replacing before just buying a new one

    Would it happen to be a Samsung?

    Anyway, the same thing happened to mine. It was a slow degradation till there was no picture. The capacitors were burned out.

    I got mine fixed at a local shop for $120.
    ~Dan

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  • dorokusai
    dorokusai Posts: 25,576
    edited October 2011
    It looks like a backlight issue and instead of worrying about it, just bought a better one to replace it for $80. It's an Insignia brand with a 2 year warranty. If I get 2 years out of it for $80, that's all I care about. Thanks for the help folks.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • Drenis
    Drenis Posts: 2,871
    edited October 2011
    They sell Insignia up here too at the local Best Buy. They use some Samsung panels from what I've heard.

    There are a range of different back lighting options. I'll assume with your set its a CCFL bulb (Cold Cathode Fluorescent Lamp). Have a read if you'd like, http://en.wikipedia.org/wiki/Backlight
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  • dorokusai
    dorokusai Posts: 25,576
    edited October 2011
    Drenis wrote: »
    They sell Insignia up here too at the local Best Buy. They use some Samsung panels from what I've heard.

    There are a range of different back lighting options. I'll assume with your set its a CCFL bulb (Cold Cathode Fluorescent Lamp). Have a read if you'd like, http://en.wikipedia.org/wiki/Backlight

    Unsure but sounds right. I'll open up the bad one now that a new one is in place. We're slaves to a TV in the kitchen and my wife was having none of that.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • Polkersince85
    Polkersince85 Posts: 2,883
    edited October 2011
    May not be worth it but if you need a bulb: http://www.ccflwarehouse.com/ccfllamps.html
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