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Obtaining Used LCD Parts?

davebarz asks: "With LCDs having already passed several generations and become affordable for the average user, one would think the biggest question would be which LCD to buy. But what about for geeks with no budget and no desk space... for instance, college kids? As friends' LCD monitors stop working due to particular components such as inverters or backlights, it's hard to resist trying to take their panel off their hands and try to fix it for oneself. There's nothing difficult about changing backlights or inverters, but after getting just such a monitor from a girlfriend, I've found that it's nearly impossible to find parts. The actual LCD panel works fine, so why throw out a $400 monitor when all it needs is a $30 power inverter? So, my question is, to where should one go to find out exactly what part one needs and then buy a suitable replacement? Specifically, I'm in the market for an inverter for a Gateway FPD1730. The inverter appears to be an Ambit model, but they're no help since they're exclusively OEM. Can Slashdot provide me with any help?"

46 comments

  1. become an OEM by brontus3927 · · Score: 3, Funny

    File the neccessary paperwork with your state/province/country to become a LCD OEM. Then contact the company and order the part.

    1. Re:become an OEM by balamw · · Score: 4, Insightful

      Of course once you have become an OEM you'll need to figure out what to do with the 1000 part minimum order you just got ;-)

      I hope you were trying to be funny, since most OEM suppliers would not sell a part developed for a specific OEM to anyone else, at least that's how it works in my business.

      B
    2. Re:become an OEM by brontus3927 · · Score: 2, Informative
      Who's to say that the inverter in question was only ever used in one model of LCD? I would assume any LCD with the same power requirements could use the same parts.

      As far as the minimum order, tell them you are expanding into the sector and want the part of a prototype

    3. Re:become an OEM by gl4ss · · Score: 1

      *Who's to say that the inverter in question was only ever used in one model of LCD? I would assume any LCD with the same power requirements could use the same parts.*

      indeed, any inverter that provides the same voltage and can pump enough should do. which is of course the obvious answer to the original question, instead of finding the exact part - find a part with close enough specs.

      --
      world was created 5 seconds before this post as it is.
    4. Re:become an OEM by Trepalium · · Score: 2, Informative

      There could be problems trying to use a part with similar specs, but different dimensions and screw holes.

      --
      I used up all my sick days, so I'm calling in dead.
    5. Re:become an OEM by andy753421 · · Score: 4, Funny

      That's where a dremel... err.. creativity, comes in.

    6. Re:become an OEM by stoolpigeon · · Score: 3, Informative

      That just happened to me replacing an inverter in a laptop. The new inverter was a touch wider than the old one. If I screwed it down, it wouldn't fit under the bezel. But everything was really tight in there, so I hooked it up, set it in place and just put the bezel back in.

      If it had been much bigger though, I would have had to find a different part.

      --
      It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
    7. Re:become an OEM by psykocrime · · Score: 2, Funny

      One of these might be useful as well. <grin>

      --
      // TODO: Insert Cool Sig
  2. 2 places... by ryrw · · Score: 5, Informative

    I do this all the time and my primary suppliers are eBay and lcdpart.com One thing to watch out for which has ruined a couple screens for me is the thin ribbon connectors whill break off if bent too many times. If those break off, you're completely screwed. So don't bend them more then you absolutely have to.

    1. Re:2 places... by BrianRaker · · Score: 1

      Better advice yet, don't bend it any more than the OE configuration ;-)

      --
      As I walk through the valley of death I fear no one, for I am the meanest sonova bitch in the valley!
  3. EarthLCD or Froogle by BrianRaker · · Score: 5, Informative

    EarthLCD. http://www.earthlcd.com.

    One-stop LCD buying shop.

    If that doesn't work, enter in the LCD panel part number into Froogle. Usually it can be found, just depends on how much you want to spend.

    --
    As I walk through the valley of death I fear no one, for I am the meanest sonova bitch in the valley!
    1. Re:EarthLCD or Froogle by MooseGuy529 · · Score: 2, Informative

      Karma-whoring clickable link. Come on, people, is <a href="...">...</a> that hard to type?

      --

      Tired of free iPod sigs? Subscribe to my blacklist

  4. Check EIO by dewc · · Score: 5, Informative

    Might want to check out www.eio.com too. They deal with some spare parts and offer diagrams and the likes. Might get lucky.

  5. Non-Backlight Use by Anonymous Coward · · Score: 1, Interesting

    I know this isn't entirely related to what you are trying to do, but how about using it in a situation where the backlight isn't needed, such as the diy projectors, which use the LCD screen on top of a overhead projector.
    Not really practical if you are trying to use the LCD as a normal display, but if you got an overhead cheap, it might be a cheap way for a big projector screen. (But would end up with less inputs, so it might still be impractical)

  6. 1000 min or 5 "sample" parts... by PaulBu · · Score: 3, Insightful

    Most of electronic component companies would be quite happy to send you a "sample" (or two) if you project an impression of someone who is designing "the next greatest gadget I can not tell you about right now" and you are evaluation their components for the "gadget". Sometimes if their real product are chips they would sell you an evaluation board. Well, for those you'd have to pay, but I suspect that what they charge for these boards is still below what it would cost you to assemble one (even assuming that college kids work for their girlfriends for free BUT tend to burn a part or two in the process of hand-soldering the board ;-) ).

    Paul B.

    1. Re:1000 min or 5 "sample" parts... by shaitand · · Score: 1

      Actually in my experience the "sample" components are ususally drastically more than regular retail.

    2. Re:1000 min or 5 "sample" parts... by PaulBu · · Score: 1

      Yeah, maybe if you mean "retail" to be what they charge for 10,000 parts -- then yes, it might be more that 15 cents a part. But I would happily pay 50 cents a part (in quatities of 5 -- for the total of the whopping $2.50) to fix my $400 LCD monitor...

      YMMV,

      Paul B.

    3. Re:1000 min or 5 "sample" parts... by shaitand · · Score: 1

      You are giving bulk purchasing a lot more credit than it is worth. On an item (lets say motherboard) you may be able to purchase it for $60-70/each in quantities of 10,000 units. In my experience if the part is OEM only the manufacturer will sell sample boards but charge more like $500/ea for them. The entire point is to charge a ridiculous price (but peanuts to anyone working on the next wheel) explicitly to bar people using social engineering to get samples. If the part costs $0.15 to manufacture it will likely cost $0.25/ea in a lot of 10,000 and $50/ea for a sample or $10/ea if samples come in lots of 5.

      The numbers are guesstimates only and YMMV, but the point is that for the most part manufacturers have caught on to this trick already (especially in tech products) and intentionally make samples cost prohibitive for individual use.

    4. Re:1000 min or 5 "sample" parts... by WebCrapper · · Score: 2, Interesting

      Tyco Electronics does this. If you call their CS/Sales center, they'll send you 1 part of anything you need for free...

    5. Re:1000 min or 5 "sample" parts... by Racher · · Score: 1

      I've done that trick too many times to get free components for my projects.

      -Eric

    6. Re:1000 min or 5 "sample" parts... by balamw · · Score: 1

      My own personal experience has been that you can easily get samples of small quantities of generic components, often for free. This is particulalry true if you already do business with the company and/or are familiar with their offerings. This has not been the case for subassemblies such as this power inverter that can be fairly custom in form/fit/function for a given product.

      Basically, unless the part is already offered to the public you are unlikely to get anywhere asking the supplier for a model # PI64567342, but you might be able to get something if you tell them more generic specs (e.g. 5V in 50 V out, 2"x3"), but you might not be able to determine all of those specs by looking at the non-functional unit you are trying to repair. ;-).

      B.
  7. Part numbers by fm6 · · Score: 3, Informative
    Any time you're looking for a really obscure item, the first thing you should do is enter the part number of in Google. Not Froogle, because the supplier might not be there, and you can always click over. Assuming that Google doesn't go, "Hey, that looks like a part number, he probably wants me to submit it to Froogle as well."

    The more obscure your search string, the more helpful Google is.

  8. Bliss by stoolpigeon · · Score: 4, Informative

    Last week my dad called me and said his laptop screen went out. I don't usually mess with hardware so I told him to take it to Best Buy and have them look at it.

    He took it in - they said the LCD was bad and it would be about $600 to replace. He called me and I told him not to do it and I'd look into it.

    I figured I could get a new LCD for less than that. I googled and came across http://www.screentekinc.com/

    I called them and the salesman told me it was probably not the LCD and that I should check the inverter first. He told me one place to get parts was Bliss Computers

    I didn't have the laptop on hand, didn't have part numbers, so I checked e-bay and found an inverter there for $40 (including shipping). Another LCD site had instructions on removing the bezel.

    I took my time since I'd never done this before and so it took twice as long as it should have. In 10 minutes I had fixed it.

    --
    It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
  9. Google by stoolpigeon · · Score: 4, Informative

    After my post above- I tried another route. I googled 'Gateway FPD1730'. That got me a hit with a list that had two part numbers - LG708G and LG708K (the second for the TFT model I think). I googled on LG708G and got the ambit part number 6633TZA013A. I googled on that- along with AMBIT and that got me two links that sell the part:
    lcdpart.com (which has already been mentioned)
    moniserv.com looks like it is the same price from them.

    I checked ebay real quick but didn't see anything-- but I really didn't look too hard.

    --
    It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
    1. Re:Google by Stevyn · · Score: 4, Funny

      I think we've just hit on a new data type: Linked Google List

    2. Re:Google by Bradee-oh! · · Score: 1

      I think I would've called it a "Googly Linked List." In my opinion, "Linked List" is the core data type and therefore should be treated atomically. Any modifiers should go before that.

      Otherwise we'd call it a "linked doubly list" or "linked circular list" or "linked chunk list."
      Or.. a "linked monkey list"... All this talk of linked lists is making me hungry for Ben and Jerry's.

      --
      "This is Zombo Com, and welcome to you who have come to Zombo Com" - www.zombo.com
  10. Off but On Topic by Peridriga · · Score: 2, Interesting

    Where can one buy smaller LCD's (like 2-6 inches).

    My only caveat would be analog inputs (RCA) or possibly coaxial with a built in tuner.

    I want to make a super PIP display. Be able to watch 5-10 channels at the same time. Maybe one day a video switcher but, one can dream (and make more money)

    1. Re:Off but On Topic by gl4ss · · Score: 0, Offtopic

      check car 'tuning' magazines.

      you know, those that have advertisements for ricer crap and hotrod accessories.

      --
      world was created 5 seconds before this post as it is.
    2. Re:Off but On Topic by Frodo+Crockett · · Score: 2, Informative

      The first thing that comes to mind are the PSone lcd screens. These are relatively cheap and use analog inputs (interlaced, even, which is perfect for plain old tv). Guides showing how to disassemble and rewire them with the connector of your choice are available, too.

      How are you planning on tuning that many channels at once? Have you found some nifty piece of equipment with a whole bunch of tuners?

      --
      "The newly born animals are then whisked off for a quick run through a giant baking oven." --heard on Food Network
    3. Re:Off but On Topic by 42Penguins · · Score: 1

      Even more off-topic, but on in IT, are there any small LCDs with "normal" computer monitor hookups? I always thought it'd be useful to see if headless boxes (fileserver in the basement?) were alive without lugging around a full-size monitor.

    4. Re:Off but On Topic by nicolaiplum · · Score: 1

      I have a 14" LCD panel that's very light and does not have a bulky surround which I use as a portable display for headless machines. It's made by "MAG Innovision", part number LT-456S, such as shown here by Froogle. I picked mine up at Best Buy but they no longer sell it last I looked.

      --
      "For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled"
  11. Find another broken screen by leonbrooks · · Score: 2, Insightful

    Odds are reasonable that it died from some other cause (knocked off desk, smashed display; staffer tripped and dumped coffee into the works; tech snapped one of the aformentioned delicate ribbons; etc) and that the part you need still functions.

    If you can locate a ready local supply of such, you might be able to not only fix the original but merge some of the junkers to make working displays as well. Doing this well requires either a large shed or a low-rainfall region. (-:

    --
    Got time? Spend some of it coding or testing
  12. Best! by shadowbearer · · Score: 3, Insightful

    This is one of the best ask slashdot's ever. Thanks for all the info everyone. I have several dead LCDs sitting around and haven't managed to find the time to research the parts and narrow down what searches work.

    You just saved me a huge amount of time. Maybe someday now I'll have a desk that's not 75% covered by monitors!

    Cheers!
    SB

    --
    It's old. The more humans I meet, the more I like my cats. At least they are honest.
    1. Re:Best! by tpearson · · Score: 2, Funny
      Maybe someday now I'll have a desk that's not 75% covered by monitors!
      No, you'll have one that's 75% covered by LCDs
  13. extended warranty by Anonymous Coward · · Score: 0

    I usually don't get the extended warranties, but I'm worried about them being fragile, so when I got an LCD monitor from Radio Shack I also got a 3 year replacement warranty. With the models changing all the time, if it breaks I'll probably get a way better one :)

    A friend of mine buys hard drives for university computers that run 24/7 and always gets the 3 year warranty and usually gets a replacement drive a year or 2 later that's 50-100 % bigger :)

  14. Well, if you buy a three year waranty... by jpardey · · Score: 2, Funny

    ...The device will last for three years, you can be sure of that.

    --
    I have freaks! I did something right...
    1. Re:Well, if you buy a three year waranty... by leuk_he · · Score: 1

      You are so wrong.

      I will last for 3 years and 1 day.

      It will give a 10 year garanty on some part that cannot be broken by normal use.

    2. Re:Well, if you buy a three year waranty... by Anonymous Coward · · Score: 0

      It comes with a 1 year warranty, but Radio Shack has a broad policy of extending warranties on anything they sell, without a deep analysis of the expected product life. There's just a chart with product category and initial price, then the cost to extend the warranty N years. For most things, it isn't worth it to get an extra warranty, but LCD monitors are in a fast-evolving intense price competition state and who knows what corners are being cut in production.

      I was surprised when the Xbox first came out and only had a 90 day warranty. The store I went to offered an upgrade to 1 year (can't remember how much it cost). I'd say that was an extension worth getting.

  15. Related question - re-purposing laptop LCD's? by Dr.Dubious+DDQ · · Score: 1

    How hard is it to turn a (presumably working) LCD from an old dead laptop into either a flatscreen monitor for a VGA signal or a display for analog video? How much of the circuitry necessary to drive the monitor is embedded in the laptop's mainboard and how much is part of the LCD panel?

    1. Re:Related question - re-purposing laptop LCD's? by TeknoHog · · Score: 1

      Many laptops use a DVI connector internally. Forget about VGA unless you really really need it.

      --
      Escher was the first MC and Giger invented the HR department.
    2. Re:Related question - re-purposing laptop LCD's? by Anonymous Coward · · Score: 1, Insightful

      They don't. They use a completely different protocol called LVDS.

    3. Re:Related question - re-purposing laptop LCD's? by Suppafly · · Score: 1

      How hard is it to turn a (presumably working) LCD from an old dead laptop into either a flatscreen monitor for a VGA signal or a display for analog video?

      Very.

  16. LCD Part dot com by BenTheDewpendent · · Score: 3, Informative

    http://lcdpart.com/

    They sell backlights, inverts, and such for many monitors. I'm getting a 19inch LCD for about 60bucks because of them. I'm just paying for the backlighting replacement.

  17. Such a bad thing :) by shadowbearer · · Score: 1

    Yeah, but at least the cats can't try to sleep on top of them ;-)* and besides, I can rebuild them to hang them on the wall if I can get them working.

    I can't afford to do that with one that I paid a shitload of money for, even if it's out of warranty. I got lucky on the prices I paid for my 21" and 19" CRTs :-D otherwise I'd still be squinting at my ancient IBM 17" and wondering why I can't focus on anything anymore.

    Auctions rock...

    An LCD here and there hanging on the wall around the desk that I could put, say, slashdot and snopes on continuously, now, that would Really Rock. ;)

    Cheers,

    SB
    * If anyone notices any dichotomy between that and my earlier posts about solving this problem, let it be known that a certain cretinous 1 year old 16 lb bratchild tomcat has figured out how to strip the expanded metal sheathing off the top of the monitors by picking and gnawing at the ductape holding the pieces on. If I didn't love him so much I'd lock him up, he's a menace :-) But LCDs hung on the wall, now, that'd present a challenge to even Mr. Furry Sagan, here. I think.

    --

    Have you ever been Rocking when everyone else was Rolling? s/Rocking/Rolling s/Rolling/Rocking ... Kernel Panic Life(0) Full, rebooting

    --
    It's old. The more humans I meet, the more I like my cats. At least they are honest.
    1. Re:Such a bad thing :) by vadim_t · · Score: 2, Funny

      Hehe, evil cats.

      I strongly suspect mine contributed to the demise of my old CRT, as she spent almost the whole day on top of it, and quite a lot of fur seemed to have got inside.

      On the other hand, now I have a nice 19" LCD, and it was really hilarious to watch her as she tried to climb on the LCD and figure out what happened with it. She spent several days walking around the monitor maybe hoping it would go back to the old comfortable thing ;-)

  18. The Flea at MIT in Cambridge, MA by Khopesh · · Score: 2, Informative

    The MIT Swapfest, aka The Flea at MIT, is a great place for old or junk computer or radio parts. I've heard somebody tagline it as "Yesterday's technology, today!"

    Third Sunday of every non-winter month, next flea is the first of the year, this Sunday April 17th.

    --
    Use my userscript to add story images to Slashdot. There's no going back.