Author Topic: How to remove and replace an IC.  (Read 2054 times)

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Offline Bryce

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How to remove and replace an IC.
« on: 16:28, 15 January 12 »
Hi All,
   I often get asked about how to repair certain bits of hardware or the best way to do a certain electronics task. So I decided to start documenting some of my work and make How-to guides for some of the things I get asked most often. This morning I upgraded a 6128 and had to remove the ROM IC. The "How do you remove an IC?" question gets asked quite a lot, so it has been documented as the first tutorial. You can find it in the Wiki here:
http://www.cpcwiki.eu/index.php/IC_Repair

If there are any particular tutorials people would like to see, then let me know and I'll document them the next time I am doing that task.

Bryce.

Offline Devilmarkus

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Re: How to remove and replace an IC.
« Reply #1 on: 16:30, 15 January 12 »
That's a nice guide!
Thank you, Bryce!
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Offline HAL 6128

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Re: How to remove and replace an IC.
« Reply #2 on: 16:34, 15 January 12 »
yeah... it's good to see and learn from a professional....
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Offline mr_lou

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Re: How to remove and replace an IC.
« Reply #3 on: 17:29, 15 January 12 »
Very nice!

Offline SyX

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Re: How to remove and replace an IC.
« Reply #4 on: 18:11, 15 January 12 »
Nice Bryce!!! :D :D :D

PD: Where is the "like" button? This post need my like ;)

Offline HAL 6128

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Re: How to remove and replace an IC.
« Reply #5 on: 20:03, 15 January 12 »
Hi Bryce,
if I drill with a 0,8mm do I have to do anything to ensure connection through the bottom side of the platine or is soldering on both sides enough?
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Offline Bryce

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Re: How to remove and replace an IC.
« Reply #6 on: 21:22, 15 January 12 »
The hole is usually coated on all sides, so the chances that you managed to remove the coating on all sides is pretty slim. If you used a 1mm drill, then they are no longer connected, but with a 0,8mm drill, the connection is definitely still there and you will only need to solder the bottom side as usual.

Bryce.
« Last Edit: 22:16, 15 January 12 by Bryce »

Offline steve

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Re: How to remove and replace an IC.
« Reply #7 on: 23:18, 15 January 12 »
If you left the old pins in the PCB, could you solder the new rom to them, or is that asking for trouble?

Offline Bryce

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Re: How to remove and replace an IC.
« Reply #8 on: 23:34, 15 January 12 »
It should work, but you might have problems getting all pins to make contact simultaneously because it's a rather uneven surface and it would look absolutely terrible. I like my mods to work AND look good, as anyone who owns any of my stuff will probably confirm.

Bryce.

Offline endangermice

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Re: How to remove and replace an IC.
« Reply #9 on: 01:01, 23 June 12 »
Great guide but I do think if anyone is going to replace ICs regularly, the price of a desoldering gun is more than worth it! Maplin in the UK sell a heated solder sucker for around £16 which does a very good job of removing solder from chip legs certainly better than braid! I honestly don't know how I'd get on without one of these beauties - it makes the job so much easier and the price isn't extortionate either. Still for those one off jobs Bryce your guide is invaluable!
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