Tiny burn on a functioning logic board causing dark screen!?

Hello everyone!!! Hoping someone can help me because i am totally STUMPED!
I have a 2010 macbook pro and the screen suddenly went dark. The computer works perfecty with an external monitor, so i assumed the backlight was just burnt out.
When i took it to the Apple Authorized Mac Support Store here in Brooklyn, they thought the same thing and kept it to replace the light. HOWEVER, a few days later when they called the said they had replaced the lights but the screeen was still black! So they opened up the computer and saw that there is a tiny burn on the logic board that is preventing my screen from lighting up.
I asked them if they can just fix the tiny burn but they said no, i would have to replace the entire logic board for close to $1000.
Question #1: Does this sound right??? As I said, the computer functions perfectly with an external monitor.
Question #2: If this is correct, is it possible to just fix the little burn instead of replacing the entire logic board? Some time of component repair?
Question #3: if i was able to find some place to fix the tiny burn rather than replace the entire logic board, are the chances high that i would have a problem again sometime in the near future?
I just dont want to go out and have the board replaced for close to $1000 and have the darn thing break a month later. I would be totally screwed. I desperately need this laptop for work!
Any help would be greatly appreciated!!!
Thank you so much!
Tracy

It is "broken" if it does not work when connected to good componets like a good screen.
Based on the phtos and desciption I say it is damaged.

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Imac has a burn mark on the logic board

i have a imac emc2266
i recently came across a imac alumium 20 inch and the guy said it doesnt boot and doesnt chime
i have tried every setting and every test still nothing.T
The fans spin and the computer tries to boot
led 1and 2 are on but the logicboard doesnt have a third led
the computer will run a mouse but the keyboard will not power
i checked the logicboard it has a small burn mark
next to the audioboard

I doubt any of those have burn marks. something on that board has fried causing the burn mark. you could find the failed part and try to replace it but you never know what else failed at the same time or failed because of the fried part.
Tron0031 wrote:
i see people all over youtube fixing logicboards with reflowing even to the extent of even baking it in the oven

New logic board causing CRASH?

I just got my G5 back from the shop - the logic board crashed, so i got it replaced.
Since getting it back, my machine is completely freezing on me regularly - particularly when I use Mail.
A friend mentioned that this may have to do with the new motherboard having conflicts of some sort.
I am desperate and working on a deadline - can anyone help me!
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take it back, all I can say.
sorry to hear about your problems.

Just had my logic board replaced, dim screen with no brightness control

My MacBook Pro 17 inch was just in for repair due to the nvidia 8600 issue (no video, Mac won't boot, etc.). I have it back as of this afternoon but when I turned it on the screen is unbelievably dim -- almost as if I have the brightness at the second-to-lowest level.
Here's the catch: when I attempt to use the brightness control, either via F1/F2 keys or in System Preferences the brightness will not change. The icon overlay shows up on the screen as if it is working but the screen brightness just doesn't work.
When I bring the brightness indicator all the way down, to the point where the screen would normally shut off, the screen stays on...but it's just the same dim screen.
Any ideas?

Test while started in Recovery : if the problem persists, then it likely is a hardware issue.
Resetting the System Management Controller (SMC) probably won't change anything, but you can readily do it before contacting the repairers.

Powerbook G4 titanium bad logic board

HELP, my second computer is a powerbook G4 15" and i have been told i have a bad logic board. is it worth replacing or should i put the $500 toward a new one? Also coould a bad logic board cause other problems in the future? what happens to make a bad logic board? what does a logic board do?
thanks for all the info.
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Hi Tour Man,
Welcome to Apple Discussions.
Which model TiBook do you have? Especially if it's one of the earlier models (400-667VGA), I would certainly not spend $500 on it, as you would probably not be able to sell the entire machine for that price.
If it's a later model (667DVI-1GHz), consider what you use it for (if you have it fixed, how long is it going to serve your needs?), the capacity of the HD, how much RAM you have, whether there's a wireless card or DVD burner, the condition of the battery, whether USB2 and the many other "updates" a new machine would offer are important to you, etc.
It's not likely that a bad LB would cause other issues.
A LB (same as "motherboard" in PC land), is a circuit board on which most of the essential elements of a PB are soldered (CPU, GPU, RAM slots, etc), so when any one of these has issues, the repair is to replace the entire LB (specialized equipment is needed to work on the micro-circuitry, so it isn't something a repair shop can repair).

Is there anything I can possibly do about these logic boards?

Ok, I have 4 broken 4th Generation iPods. Two of them are white 20GB models, one is a white 40GB model, and one is a U2 Special Edition 20GB model. All of them have broken logic boards. Every month or so I give them another go to see if I can get any of them working. But, like usual, I tried today and had no luck.
EDIT: Let me specify, these are all monochrome 4th generation models.
The difference here (as opposed to previous attempts) is that now I have a working monochrome 4G (meaning a perfect functioning logic board) that I purchased since my last attempt at fixing these (meaning I now have 1 working iPod but still the 4 broken ones). I was able to restore one of my spare hard drives (20GB MK2006GAL model) with firmware version 3.1.1 using this working iPod. I was even able to add songs, and after disconnecting, play them in the working iPod. Not to mention, the hard drive sounds like it is running beautifully.
So, I thought, "maybe if I plug a 4th gen formatted, working hard drive with the latest 4th gen firmware into one of these corrupted iPods, they'll at least play the music, even if they won't connect to the PC". Wrong. I still get the old routine of Apple logo, folder icon, "Do not disconnect" for about 5 seconds until it resets itself to the Apple logo, a sad face, and finally a low battery sign (regardless of how charged the battery is) in that exact order. This occurs with 3 of the logic boards. The other logic board, which was originally in the U2 iPod, is able to boot up, and choose a language, but the logic board is broken in that the battery is undetected (no charging, and as soon as you unplug it, poof, its gone). I've tried several batteries that I know work; I am 100% positive it is a logic board issue.
I've tried diagnostic mode on each and every iPod. On the working 4th gen (with functioning logic board), they pass HDD R/W and HDD SCAN. But they never complete on any other iPod; even after an hour, they've done nothing, and act like they have frozen. I've run the 5-in-1 test on each of these, and they all complete fine.
So... I guess it all comes down to corrupted logic boards prevent the iPod from properly booting, connecting, and completing diagnostic tests. Is there ANYTHING I can do to rewrite or fix these files? Would connecting to a Mac help at all? (I ask because there is no Mac available to me, not even at a local computer store, but if you guys think it would help, I would go out of my way to the Apple store about 1 hour away). I know Mac's use different formats for the hardware, but I thought this was all hard drive related. Thanks for any help/recommendations/etc.
Oh, one last note, about that logic board that is able to boot but can't detect the battery: It actually can tell if theres a battery there, but it just doesn't... work. Like, if I have a completely dead battery installed, and I try to plug it in, I get the battery with exclamation point icon. If I plug it in with a battery 50% charged, it will boot and the battery icon will show that is it 50% charged, but it won't charge it, and it still turns off it its disconnected. Any help with this would be great as well.

I tried running the HP tool today, to see if that would help, but it to was unable to detect my iPod.
I should also point out that Windows can not detect my iPod either (and thus it has no drive assigned to it).

Way to prolong life on the Logic board?

I have an ibook, and so far, I've had my logic board replaced twice. Happily, it is still under logic replacement board warrenty, but with year three steadily appoarching, I am wondering-Is there a way to prolong the life on the logic board? Would dumping programs help? Only keeping it on a couple hours a day? Buring sage? Chanting prayers? Help!

Hi, Dianna. Welcome to Apple Discussions.
The only thing I know that can keep the logic board bogeyman at bay is to refrain from picking it up by the front left corner. If you are picking it up in just your left hand, pick it up in the center under the trackpad. The theory is that picking it up by the left front corner can cause enough flex in the case to pop the graphic chip off the logic board, causing the problem with which we are all too familiar. Since reading this, I've tried to remember not to pick mine up by the left front corner.
Deleting programs won't help, nor will limiting your usage. Sage, incense, and chants optional, but not required. 8^)

Constant Kernel Panics? Black Screen? Video problems? You should know about this Class Action Suit against Apple for selling defective logic boards.

CLASS ACTION FILED AGAINST APPLE FOR DEFECTIVE MACBOOK LOGIC BOARDS
I was one of the many unfortunate individuals who ended up paying Apple the $310 repair fee (more than $400 total, diagnostics included) to fix what was a defective logic board causing constant kernel panics. I don't think the suit has come to a conclusion or a settlement has been reached, but after spending the last month or so on this board trying to diagnose my kernel panics, I figured many others with similar problems would be interested in knowing about this.
If anyone has any more up-to-date information on the suit or on what individuals should do if they believe they fall into the Plaintiff Class, please share!

CLASS ACTION FILED AGAINST APPLE FOR DEFECTIVE MACBOOK LOGIC BOARDS
I was one of the many unfortunate individuals who ended up paying Apple the $310 repair fee (more than $400 total, diagnostics included) to fix what was a defective logic board causing constant kernel panics. I don't think the suit has come to a conclusion or a settlement has been reached, but after spending the last month or so on this board trying to diagnose my kernel panics, I figured many others with similar problems would be interested in knowing about this.
If anyone has any more up-to-date information on the suit or on what individuals should do if they believe they fall into the Plaintiff Class, please share!

Does Setup assistant work on mac with broken logic board?

Old 2007 macbook pro died due to logic board failure. But obviously the hard drive is fine and working. Getting a new macbook very soon, and wondering if i can use setup assistant to restore my old computer onto my new one. If not, are there any other alternatives?
(I am willing to take my old computer apart for the hard drive if that is necessary.

Should not be too hard. You will need to remove the drive from your computer and put it into an external case. You can either attach it your computer upon first boot, and it should offer to copy your information for you, or you can drag/drop the data you want on your new computer manually. I prefer to copy over manually, so i know what is coming over. The only problem I can see is if the bad logic board caused some sort of data corruption as it was failing. I doubt it, but there is that chance. In that case, something like Disk Warrior or Data Rescue could come in handy to recover the data.

2011 Macbook Air - Multiple logic board failures - possible causes?

I have a 2011 i7 macbook air - 7 months old. About a month ago I went to use the computer after allowing it to sleep and it was totally dead. Apple authorized repair center said the logic board failed and needed to be replaced. Fast forward a month and I finally get the machine back. It works fine for 6 hours, I put it to sleep, and soon as the screen went out, I hear a pop, fizzle, then the machine is dead again. The authorized repair center wants to replace the logic board again, which should get me up and running, but its not likley that that is the root CAUSE of the problem here, since it happened twice now. I suggested to them that perhaps the power adaptor, battery, or some other component is the issue and they don't think so. I'm located overseas, and every repair attempt takes 1 month b/c of parts (total joke if you're listening apple!!). My biggest concern is that they replace the logic board again, I'm out of commission for 2 months now, and it just fails again. Does anyone have any suggestions on the possible causes of this problem?
As FYI - I'm using the same power outlet and power strip with another laptop and haven't had any similar issues. Thanks for the help!

I have logic board problems too. I have had a late 2010 mac book air for 2 and half years. Its been a great machine in general - although it did go back within the warranty period for the track pad
Now it has logic board failure - symptons are the sound going and the battery is dead and it is unable to charge which means every time you put the power lead on the computer thinks it is starting from scratche.
I have been quoted over £400 for the repair! Like the above post I do not believe that this part should fail - and if it does then it is a major design problem and Apple should be doing something for us. I just dont know where to start.
I have used macs for 14 years and owned eight along the way. Most have them have lasted many years with full functionality the record was my G3 imac which was still working after 13 years.
I really cant believe the situation I am in and rather think I have bought my last mac!
alistair

Loose SSD causing logic board problems?

So I replaced my hard drive with an SSD for my Early 2011 13" MBP a few months back and I guess I forgot to fasten it back into place properly. When moving around my macbook you can hear a sort of "thumping" noise from the SSD. I know I really should've fixed this ASAP but I didn't have the proper screwdrivers anymore and have been pretty busy dealing with other things.
Anyways, lately my MBP has started going to sleep randomly, turning back on after clicking around a couple times. This happens about twice a day and I'm wondering if my loose SSD could have caused damage to the logic board? I was doing some reading online and some people have claimed that it could just be Mountain Lion
Thanks

calebdorton wrote:
I'm wondering if my loose SSD could have caused damage to the logic board?
doubtful.
screw it in properly and see if that makes any difference.

Cause of logic board failure?

There was something wrong with my logic board, and now my macbook is being serviced by the Apple techs.
Is there anything I could have done to the logic board, or someone else, that could have resulted in it breaking? (The Macbook wouldn't turn on and colored lines filled the screen) Or is it just a defect in the computer?

There was something wrong with my logic board, and
now my macbook is being serviced by the Apple techs.
Is there anything I could have done to the logic
board, or someone else, that could have resulted in
it breaking? (The Macbook wouldn't turn on and
colored lines filled the screen) Or is it just a
defect in the computer?
I had the same problem. I fixed by doing this; when you turn on your computer, flash the PVRAM; to do so hold apple + option + p + r until the computer restarts. Then you will see the apple show up and you can boot into OSX.
Once you boot into OSX, change the screen resolution, to 1024-768 (streched). Reboot again, and then change the screen resolution back to the default settings. No more coloured lines.
This is a defect. Apple told me they will have a update soon which will fix the problem.

Can a faulty logic board kill a hard drive?

Could Apple's faulty Logic Board be the cause of my iBook's HD demise?
I have an iBook G3, Power PC 750 @ 800 MHz, running Mac OS X 10.2.1. A year or so ago I had to send it back to Apple to get the logic board replaced because the one they originally put in was faulty. Since getting it back, the iBook's not been the same -- frequent crashes, failed start ups, Desktop folders displaced upon start up, etc., ad nauseam. Disk Utility showed no problems when I'd run the repair procedure. The Hardware Test CD that shipped with the iBook showed no problems either.
Last week the iBook nose dived. Desktop folders were scattered, software programs weren't functioning correctly, and I couldn't move and/or trash folders. I ran Disk Utility again which now reported "Invalid Node Structure." It began rebuilding "B-Tree Catalog," subsequently reporting the disk was repaired.
Upon restart, the symptoms worsened, and within an hour my hard drive no longer mounted. Using the install CD at start up (holding the "C" key, of course), I'd get the flashing question mark, then the screen would flash, then I'd get the prohibatory sign, then after a little bit the CD would start.
Under Disk Utility my HD showed up as a generic Media, ATA, internal, Master something (whereas before it was a Sony something or other with one volume listed beneath). Nor could I re-install the OS X software because my HD didn't show as a destination disk.
I performed all the start up key commands offered as solutions in these forums and elsewhere (pram, nvram, power unit reset, safe mode, single user mode, verbose mode, open firmware ala mode). Open Firmware would not show my HD when using the command to list the directories. I even got creative but to no avail (BTW, "fix-this-expensive-piece-of-junk" is not a valid Open Firmware command). I even took out the additional RAM chip that shipped with the computer. The problem persisted.
Then I drove 2.5 hours and dropped $100 for DiskWarrior. Another 2.5 hours later DW was a "No go". Starting from the the DWarrior CD (holding the "C" key, of course), I didn't get beyond the "prohibatory sign." Alsoft's tech support Rep was very responsive, and offered various suggestions (thanks Marc!), and he finally concluded that there is an obvious hardware problem with my computer.
I have no other FireWire computer running Mac OS X to use as a host to target my iBook (I have an iMac maxed out running 9.2.2 -- had to resurrect it from the dead as well - whole 'nuther dilemna!). So, I bought an external FW drive, installed the 10.2.1 software that shipped with my iBook, and ran DiskWarrior from there to fix my internal HD. Nothing. The HD doesn't show as a repairable drive. Obviously it's toast - burned, baby, burned.
So I figured I could at least use the external drive to run the iBook. I then installed all the software from the "restore" CDs, rebooted, only to enjoy screens full of fine gray lines, and frozen screens, and screens of green and red and blue and purple and yellow lines. YUM!. This is the same junk that Apple supposedly fixed by replacing my logic board last year.
My iBook is again useless, and six months beyond Apple's Logic Board Replacement Program's "3-year from date-of-purchase" criteria. Frustrated beyond explanation, I'm beginning to regret my decision to "Think Different."
I apologize if this post comes across as a rant. That's not my intention. I'm very disappointed, and I wanted to detail my predicament thoroughly as to eliminate the "did you hold the 'xyz' key" responses. Trust me, I read and tried them all.
All this said, I iterate my question. Could Apple's obviously faulty Logic Board be the cause of my iBook's HD demise?
Also, is a Logic Board something I can purchase and replace myself?
Thanks for your time.

Hi, and welcome to Apple Discussions. I'm so sorry to hear of your troubles.
Truthfully, I would question whether the iBook with both a dead hard drive and another bad logic board is worth the cost of repair.
My hard drive acted up when my iBook G3 800 Mhz came back from its second logic board repair. I invested in DiskWarrior, and it brought it back a couple of times, but, ultimately, I had to do an Archive and Install to regain use of my computer. That was in July of 2004, and it's still working fine (knocking vigorously on wood).
It is my belief that sometimes the trip to and from the repair facility for the logic board repair involves too much jostling for the hard drive to tolerate it well.
If you really want to get it fixed instead of buying a newer portable, I would recommend that you check out DT & T Computer Services in Fremont, California. They do free diagnostics and will do the repair on the logic board for about the same amount you would have to pay to just buy one. They also do hard drive replacements/upgrades (scroll down on the page). I would ask for a little bit of a break on the installation fee for the hard drive if they have it open to repair the logic board, anyway. DT & T also gives a six-month warranty on the repairs.
Good luck!.

Imac late 2006. Is it my logic board?

Ok so I tried everything and its about to be a year. so ill just start from the beginning so around this time last year I Believe it was on Christmas eve or before it anyway's I decided to buy mac OSX snow leopard because my mac was still running on tiger so I went out to buy the disc etc and when I get home back up all my files an restart the computer and boot from the cd cause I was going to do a clean install I wipe out my hard drive and then when I go to install it I see a message saying I cant install it on this computer because I don't meet the ram requirements. and I was sort of stupid cause I didn't remember I was still running on 512 Mb of ram that came with my mac so now I have my computer wiped and I get a bit mad so I go to the apple store and they tell me its not really a big deal all I need to do is to buy at least 2 gigs of ram and I will have no problems installing it so he gives me a paper saying what ram I need to buy for my computer. so I go to fry's and buy a patriot 2 gig DDR2 SDRAM 667 MHz PC2-5300 unbuffered and all the stuff that makes the ram compatible with my mac so I go home open the ram access doors for the first time but before that the guy at the apple store showed me how to do it and there was an article on apples web site. after I put it in and re place the 512 Mb that came on the top slot I turn it on and and cross my fingers to hope it works and I get to the installation screen and let it install after 30 min or so I come back "installation complete" I was happy it worked and everything was fast huge upgrade from being stuck with tiger. so about 1 in a half month later I get on my mac and I hear 3 beeps and I start freaking out so I go on apple web site with my iPod and there I learned that the 3 beeps meant bad ram. so I go to the Apple store and they tell me patriot doesn't really work well on IMac's so I go to fry's and get a new 2 gig but this time a Kingston. I get home put it in (same slot) turn it on and it works! so about 2 months later I'm thinking I want to upgrade my computer to 4 gigs but then one day I turn on my comp and same thing! so I go to fry's get 4gigs (2: 2gigs) get home and this time I install for the very first time a ram in the bottom slot ( so now I got 2gig on top and 2 gig on bottom slow) turn on the computer. and..... beep.....beep......beep the same thing I have got these past months 3 beeps( and if your wondering it is the right ram and all) so at this point I don't know what to do so I take the ram out. and I do nothing a few weeks later I go to fry's to get some of my money back because it was like 50 dollars and get just a single 2 gig get home put it in and it beeps for a tiny sec then suddenly stops and I see the apple logo. after a few weeks it did the same thing but this time I took out my 2 gig and let it sit out side and like one day later I put in the ram it came with 512 and it worked but it was really slow. so one last time went to the apple store and the guy told me it was a bad logic board and that it would be pricey to fix it. so after that from that day till this day Wednesday, December 21 my mac just turns on when it wants to and doesn't turn on and gives me 3 beeps. around September of this year I had my mac turning on successfully with no beeps running on 512 Mb of ram until on Oct I turn it on and 3 beeps. my 2 gig of ram the month before that got chipped of by the clips on my iMac( and by the way all this time I have not been forcing it to go in etc and adding to much force to get it damaged. so now basically my mac could go for 3 weeks then one day you can turn it on and others were I'm stuck with 3 beeps. and even some times I turn it on it does 3 beeps for one round and suddenly out of no were stops and boots up. I really like this mac although I cant upgrade past snow leopard but its the only good computer I have right now cause when this computer acts up i have to use my stupid slow windows vista laptop, and this is my last chance to see if anyone could help me cause I tried everything Excuse me from my grammar and spelling but I want to try and make this as quick and legible as I can.
Thank you very much for your time and Merry Christmas!

That iMac 4,1 Core Duo is an Early 2006 model that only supports 2x1GB modules for a total of 2GB.
See > iMac (Early 2006) - Technical Specifications

After Logic Board replacement Built in Display not working but External Monitor is

Had to replace logic board in my Mid 2009 17' MBP as it wasn't powering up at all.
Since putting in refurbished logic board MBP powers up and actually works perfectly with an external monitor but built in display is dead.
In 'About My Mac' initially it showed Color LCD as being connected., but now it doent.
Can anyone tell me if this is a problem of the refurbushed logic bioard from this ionfo - or if there is a w ay of being 100% sure that it is the logic board and not the display.
Best
Tommy Banana

Shine a bright light at the screen and see if the picture is there, but the backlight is not there.
Working inside MacBook is very fussy work, and it is far too easy to make connections that seem fine, but do not quite work, or to disturb earlier work during re-assembly. Just to vex you even more, the screen connections go through the hinge area, and are subject to constant movement and stress.
I tend to first blame the last thing you changed (working inside your Mac in this case) as the source of the problem over random failure, until I can use classic techniques (such as substituting know-good parts) to rule random failures in or out.
If you did not follow proper grounding and static-elimination techniques, you can cause major damage inside. Tiny shocks can ruin electronics long before you feel the spark.

Tiny burn on a functioning logic board causing dark screen!?

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