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Author Topic: E76 - Resolder The Ics Chip?  (Read 133 times)

jappe84

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E76 - Resolder The Ics Chip?
« on: July 30, 2009, 06:48:00 AM »

Allright, I just got a friends 360. He says it stopped working after a thunder storm and RRoD ever since.

I checked the error code and it showed 0020, I did the X-clamp fix and after I had baked it, it now shows secondary error 1030 and E76 on the TV.

Now the 1030 is likely to get damaged in a thunderstorm. I think I have read every single post on XS about E76 and  where people have swapped the ethernet chip with chips from the original xbox and the 360 successfully booted!!

I have another 360 board laying around and both have the same ethernet chip, the ICS one.

I'm thinking of trying to desolder the faulty chip and replacing it with the other one. The thing is, I don't think I have the right tools to do a good job.

I have soldering experience and am willing to try it, but would like to ask some of you for some advice on how to do this the best way. Or if there is another solution, maybe to mute the chip during POST or something.

I have posted images of both the chips, they should be compatible right?
http://i26.tinypic.com/2wgvvpw.jpg

http://i28.tinypic.com/iolsmw.jpg





EDIT:

I just tried to press the ICS chip down while starting the xbox to ensure that the chip is dead and that it's not just a bad connection...MAN did I burn my thumb. I took like one second for it to get really hot

I'm guessing the chip is dead

This post has been edited by RDC: Jul 30 2009, 02:27 PM
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RDC

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E76 - Resolder The Ics Chip?
« Reply #1 on: July 30, 2009, 07:43:00 AM »

They're both 1893BFLF chips, so you can swap them. Typically when it's damaged the 360 still works, ya just have no wired Ethernet, but if it's really toasted or even removed it'll throw an error, and if it's getting that hot then there's something wrong there. The best way to remove and replace it is with a hot air rework setup, and while it can be done with an iron, some solder braid and a bit of patience, using a hot air setup is a lot faster and there's less chance of casing any damage to the pads/traces under the chip. I don't mean a heat gun either, thta'll cause more issues than anything.

 

What ya should try, if ya intend to tackle it yourself, is remove the good IC from the spare board first. That way if ya end up lifting pads or really wrecking it you'll know what to avoid when working on the one ya want to keep. If ya trash that IC in the process it can be found online and ordered up as well, so no worries on that part of it. Removing a part is always more difficult than installing it, more so when you're trying to not damage it in any way so it can be swapped to another board, so just take your time and don't rush or pry on anything, and if it looks like ya can't get it removed/swapped there are plenty of other members on the forums that have the proper hot air setups to pull that kind of IC off there and install a new one if ya need it done for ya.

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jappe84

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E76 - Resolder The Ics Chip?
« Reply #2 on: July 30, 2009, 08:32:00 AM »

Thank you for the detailed reply, I'm gonna try to desolder the working one with the iron and braid and see how that progesses. I have no access to a rework station but if anyone from south of Sweden is reading this and has access to it please feel free to contact me.

I'll post back after trying to desolder it

Thanks again
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jappe84

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E76 - Resolder The Ics Chip?
« Reply #3 on: July 30, 2009, 09:22:00 AM »

I just tried desoldering it but my tools are just to big and to clumsy, I guess I could do it with ALOT of work, but I'm just too afraid I'm gonna break it instead. I'll try to find someone near me who has the right tools.
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jappe84

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E76 - Resolder The Ics Chip?
« Reply #4 on: August 03, 2009, 06:41:00 AM »

Alright, heres a little update.

I actually managed to fix the xbox that I intended to use for spare parts and that one is now working perfectly.

I still wanna give the one with the fried ICS chip a chance though so I found a guy that desoldered the chip beautifully. I found a few places in china where I can order a new ICS chip. We are still discussing price and shipping method.

So what I need for this xbox to be up and running again is a new ICS chip, a new RF module and a new dvd drive since I used these to fix the other xbox. If anyone has got these parts (well except for the ICS chip) and want's to sell it cheap  and ship to Sweden please let me know (IMG:style_emoticons/default/tongue.gif)
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RDC

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E76 - Resolder The Ics Chip?
« Reply #5 on: August 03, 2009, 07:13:00 PM »

Check in the 360 B/S/T for any parts ya need, not sure how many in there are in Sweden or what that could even cost in terms of shipping for something like a DVD drive, but it's worth a look.

You can get the ICS from DigiKey (ICS1893BFLFT) they're about $4 each, then probably 4 times that in shipping considering where you are, but it's another place to check out. Any of the ICS1893BF will work, the LF just means Lead Free and the T is the packaging more than one comes in, Tape and Reel, but as long as it has the 1893BF part number yer good.
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jappe84

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E76 - Resolder The Ics Chip?
« Reply #6 on: August 04, 2009, 06:51:00 AM »

Thanks again RDC, you have been very helpful! I was wondering what the difference was (IMG:style_emoticons/default/smile.gif)

I'm waiting for a few more replies from chinese retailers regarding the ICS1893BFLF to see if I can get it even cheaper. One is offering me the chip for $12 including shipping. Thats seems like a good price considering I wont be able to buy it in Sweden.

I'll keep looking for the other parts while the chip is being shipped (IMG:style_emoticons/default/tongue.gif)
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strawsy

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E76 - Resolder The Ics Chip?
« Reply #7 on: August 23, 2009, 09:47:00 PM »

Any update on this? I would like to know how this worked out? I'm not stealing the thread I just want to ask one question here. I have the same problem with an xbox 360 but mine will boot up all the time...it just randomly throws this error. If I shut it off and then turn it back on it will work again. So is it maybe the ethernet chip is just loose?
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jappe84

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E76 - Resolder The Ics Chip?
« Reply #8 on: August 25, 2009, 04:26:00 PM »

Alright, here's an update.

I took it to a guy for desoldering and here is the result:

http://i28.tinypic.com/2ecjkmo.jpg

In the top right corner you can actually see me started to refill the "cells" with new solder for easier installation of the chip.

after filling all the cells I took a thousand more pictures to check for a short.

I then installed the chip by soldering one leg in a corner first, checked with camera (set to super macro) so that all the legs were positioned right and locked the chip in place by soldering another leg on the opposite side.

I've come this far:

http://i31.tinypic.com/307qbf6.jpg

Now I know that the solder joints aren't perfect but I'm not done with them yet. Man, you can just imagine how hard it is to solder this thing with my amateur soldering iron (IMG:style_emoticons/default/smile.gif)

The other side of the chip is going to be even harder since the ethernet port and USB port are in the way...


@ strawsy: could be just a bad connection. I read somewhere some other guy having the same problem. It should be pretty easy fixing it, just carefully put some flux on the legs of the chip and hold the iron for a second or two. OR! just try removing the screw that holds the motherboard down near the ethernet chip. Now, I'm just guessing but it could be the motherboard flexing and breaking the connection when you get the error.

good luck to both of us (IMG:style_emoticons/default/tongue.gif)
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jappe84

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E76 - Resolder The Ics Chip?
« Reply #9 on: August 26, 2009, 08:48:00 AM »

Aaaaand........SUCCESS! (IMG:style_emoticons/default/smile.gif)

the new chip seems to be working as it should, the xbox boots and I get an IP adress (IMG:style_emoticons/default/smile.gif)

Thanks again RDC! you have been very helpful!

Here's a pic that shows my soldering iron and the chip (IMG:style_emoticons/default/biggrin.gif)

http://i26.tinypic.com/30kdrhy.jpg

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MadMaxGR

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E76 - Resolder The Ics Chip?
« Reply #10 on: September 02, 2009, 01:48:00 AM »

Can you please specify which method did you use to solder it back?

Did you presolder the traces on the board before you place the chip on them so with small heat the legs will get in proper soldering? or you presoldered the chip's legs?
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jappe84

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E76 - Resolder The Ics Chip?
« Reply #11 on: September 02, 2009, 02:58:00 AM »

QUOTE(MadMaxGR @ Sep 2 2009, 09:48 AM) *

Can you please specify which method did you use to solder it back?

Did you presolder the traces on the board before you place the chip on them so with small heat the legs will get in proper soldering? or you presoldered the chip's legs?



I started off by presoldering the traces. The hard thing was to know how much was enough. When done I inspected all the traces using a 10MPx camera and using super macro.

I then carefully dipped the chips legs in flux and and also carefully applied flux on the traces.

When everything seemed right I put the chip in place and soldered one leg in the top right corner and another leg in the bottom left corner to lock it in place. I then took some more pictures to ensure everything was in it's right place.

I tried "pulling" the solder up to the legs of the chip from the traces. This worked on some places, other didn't have enough solder so I put a MINIMAL amount of solder on the tip of the iron and made sure that there was a connection between the leg and the trace.

Even by photographing it was really hard to see if there was a good connection so I took a sewing needle and very carefully tried to move the leg from it's position, if it moved I knew that it hadn't been soldered correctly.
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MadMaxGR

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E76 - Resolder The Ics Chip?
« Reply #12 on: September 02, 2009, 06:01:00 AM »

Thank you. It was more detailed that I was expecting (IMG:style_emoticons/default/smile.gif)
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jappe84

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E76 - Resolder The Ics Chip?
« Reply #13 on: September 02, 2009, 03:46:00 PM »

Hehe, now anybody with crappy tools can resolder the chip (IMG:style_emoticons/default/wink.gif)

All you need is patience my friends, patience and a good camera (IMG:style_emoticons/default/wink.gif)
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jappe84

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E76 - Resolder The Ics Chip?
« Reply #14 on: October 06, 2009, 02:02:00 PM »

Alright, here's a little update, I haven't really used the console much, I just tried it out and it has been laying around collecting dust ever since.

A few minutes ago I decided I'd start using it  and connected everything, booted it up.. played around in dash for a few minutes and decided to download the media update so that I could watch a movie.

I connected to xbox live and there was a update.. I downloaded the update, the console restarted aaand E76 !

I tried restarting without luck..

I unplugged the thing for 15 minutes or so.. removed the HDD, booted it up again and it booted and asked me to plug in the HDD so that the update could be applied.. I plugged the HDD in, the console rebooted and E76 ...

I'm starting to think theres something weird with the update..

Any ideas on what I could do.. try it.. are highly appreciated!

Thanx
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