[sdiy] MCU Xtals

[rburnett at richieburnett.co.uk]

Still looks like an accident (and possibly even a person injury!) 
waiting to happen! (>.<)

-Richie  <-- Also loathes PLCC


On 2022-08-23 16:26, Steve Lenham wrote:
> Yep, that would be better (as would pretty much anything). Initial
> search does not throw up a source, but it is like searching for a
> needle in a haystack made of those wretched diamond things.
> 
> On 23/08/2022 16:11, Phil Macphail wrote:
> 
>> Hopefully pictures work here, this is the tool I have for PLCC
>> extraction. No risk of breaking the socket and works better than
>> cheap “diamond” tools, but no idea if they are still made,
>> 
>> Phil.
>> 
>> On 23. Aug 2022, at 16:28, Steve Lenham <steve at bendentech.co.uk>
>> wrote:
>> 
>> If it's PLCC put thin screwdrivers in the slots in diagonal corners
>> and just lever it out. It really feels like the chip would break in
>> half any moment when you do it, but eventually it goes out.
>> 
>> If you pry with screwdrivers too much, these sockets can crack,
>> especially if they're "vintage".
> 
> +1 to that, although for "can" read "almost certainly will".
> 
>> Best to get a proper PLCC IC extractor. They're not expensive.
>  I have had no joy with those at all. There seems to be only one
> design available - tiny hooks which are drawn upwards as you squeeze
> inwards on the diamond-shaped handle. I find that what happens is:
> nothing...squeeze harder...nothing...squeeze harder...hooks rip a
> chunk out of the bottom of the PLCC, leap out and score a nice deep
> scratch across the top of the IC for good measure.
> 
> I've got a faulty Lexicon PCM80 here where I would really like to try
> changing the main CPU, but it is a 68-pin socketed PLCC and I can't
> get it out. I've tried, and the results were as described above! As
> far as I can see, you just need to treat socketed PLCCs as if they are
> soldered in, and desolder the socket with the IC still in it.
> 
> I bloody hate PLCCs...
> 
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