[sdiy] MCU Xtals

[Pete Hartman]

This one looks interesting:

https://www.mouser.com/ProductDetail/TE-Connectivity/822154-1?qs=IGgAdOvCTsQgwBEedWVRzw%3D%3D

Pete

On Tue, Aug 23, 2022 at 10:30 AM Steve Lenham <steve at bendentech.co.uk>
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.
>
>
> [image: IMG_4247.jpg]
>
> 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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