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Repair information, troubleshooting tips, and guides for the sixth iteration of Apple iPhone, announced on September 12, 2012. Model: A1428, A1429

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iPhone 5 IC Chip Broken Near LCD FPC, IC Chip Code?

Hi Guys,

I have used this site for many years now and It just about has all the answers that I require. Recently, I have come across abit of a dilemma and I thought it would be great to post it on here incase there are others out there having the same issue.

The problem is from a mistake of mine. While i was disconnecting the LCD I pushed the tool down on the board damaging one of the IC chips. I am told it is known as a Display IC Chip. The location is right next to the LCD FPC connector. There are 3 chips located there. 1 of them has broken off. Now the iphone will not display anything but you can hear all the noises of the phone and it functions normally (i.e. touch works etc). I noticed this chip broken off straight away because I was sure that the lcd was fine.

So I was wondering if anyone knows more about this type of chip and how much and where it can be purchased?

Thanks.

Answer this question I have this problem too

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For some reason I cannot see the photo that I have tried to upload. I am not sure if you guys can see it. If not please let me know how to upload it. Thank you

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Wasim Ayoub, to post an image with your question, follow this guide Adding images to an existing answer

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I'm also looking at an issue like this. I think mine is a backlight chip. Where can I get the schematic image the Tom has?

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I have the logic board schematics, which part broke off?

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will you help me find the replacement for l44 on the board how do I cross-ref the correct replacement 4 pin chip? Thanks a bunch

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vitalyuk, L43 and L44 are identical. Both are a 90OHM-50MA in a TCM0605-1 package filter choke.

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Hi Tom, I have an iPhone 5 and the screen wont display, just chimes every 2 secs, its fully restored on itunes. i was checking the connector for damage and noticed that L41 had broken off. I presume L41,2,3 etc are all the same part?

Would this component be responsible for the LCD not working?

What does the choke do, provide some signal isolation?

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I know a great source---the piece of tape in your picture. Why not put it back on?

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I belive the chip in question is L43, and from what i can understand this is LCD Data filter, and can be rectified by running two vertical trace wires on pads.(if someone could please confirm this) I was lucky enough the filter IC was stuck under the tape in my case dont forget to check if its still stuck there. Hope this helps someone.

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+ here is picture of problem in my case

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You could do that, if you wanted to bridge the component. Why not replace it properly with a TCM0605-1 90OHM-50MA filter choke? That way you know you have a proper repair

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Tom Chai,

Thanks I have also got the schematics to try and get a exact model number for the IC. The IC is the L45 to be exact.

oldturkey03 where will i get a TCM0605-1 900HM-50MA filter choke?

Thanks guys for the help

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depends where you are located. I usually use mouser.com or digikey.com for SMD components.

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thanks may deare ferend i hope victory in life for you

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