Strange Amiga IC Socket Board...

13 April 2017, 17:00

Hello,
This is my first time posting here, so I apologize if this is not the right forum for this. But I recently got some Amiga stuff from a guy whose father worked on upgrading various computers around the time of the mid 80's to early 90's. I have a box full of chips and inside was this peculiar looking device with no markings on it.

I tried looking up some of the chips on it and I can not come to any conclusion as to what it exactly is or if it even is for an Amiga. Could anyone shed some light on this possibly? Any help is greatly appreciated!

xArtx · 13 April 2017, 17:46

Hi, well it has more chips, but essentially the board is
still just a memory (ROM). It has buffered interface,
and maybe the PAL is doing address translation.
I don't recognise it as an Amiga thing, but that's not saying much.

ajk · 13 April 2017, 17:53

Never seen anything like that plugged onto an Amiga motherboard at least. The ICs appear to be an EPROM, EEPROM, programmable logic and some plain logic chips so could be for a myriad of purposes really. If it's Amiga related I would suspect some kind of bug fix or addition for a peripheral.

If you are able to dump the contents of the ROMs, that might reveal its origins.

13 April 2017, 22:03

I have no way of dumping the contents

Another thing dawned on me too, I wonder if it is for the Apple II since there is an IC socket you can utilize for devices such as joysticks. And as xArtx mentioned before, with the PAL, is this also the same same PAL that is used in European TVs? Forgive my ignorance on this matter!

BarryB · 13 April 2017, 22:19

PAL in TV's is different to PAL in logic chips, in this case it stands for Programmable Array Logic and is a way of programming logic functions into a chip!

13 April 2017, 22:27

Thanks BarryB! I appreciate the clarification

McTrinsic · 14 April 2017, 00:21

Hmm,
some A2000s had a small fix that reminds me of that but I don't have a link ...

13 April 2017, 17:00	#1
Reynold1 Posts: n/a	Strange Amiga IC Socket Board... Hello, This is my first time posting here, so I apologize if this is not the right forum for this. But I recently got some Amiga stuff from a guy whose father worked on upgrading various computers around the time of the mid 80's to early 90's. I have a box full of chips and inside was this peculiar looking device with no markings on it. I tried looking up some of the chips on it and I can not come to any conclusion as to what it exactly is or if it even is for an Amiga. Could anyone shed some light on this possibly? Any help is greatly appreciated! Attached Thumbnails

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13 April 2017, 17:46	#2
xArtx Registered User Join Date: Jun 2013 Location: Australia Posts: 685	Hi, well it has more chips, but essentially the board is still just a memory (ROM). It has buffered interface, and maybe the PAL is doing address translation. I don't recognise it as an Amiga thing, but that's not saying much.

13 April 2017, 17:53	#3
ajk Registered User Join Date: May 2010 Location: Helsinki, Finland Posts: 1,341	Never seen anything like that plugged onto an Amiga motherboard at least. The ICs appear to be an EPROM, EEPROM, programmable logic and some plain logic chips so could be for a myriad of purposes really. If it's Amiga related I would suspect some kind of bug fix or addition for a peripheral. If you are able to dump the contents of the ROMs, that might reveal its origins.

13 April 2017, 22:03	#4
Reynold1 Posts: n/a	I have no way of dumping the contents Another thing dawned on me too, I wonder if it is for the Apple II since there is an IC socket you can utilize for devices such as joysticks. And as xArtx mentioned before, with the PAL, is this also the same same PAL that is used in European TVs? Forgive my ignorance on this matter!

13 April 2017, 22:19	#5
BarryB Amigaholic Join Date: Dec 2009 Location: UK Posts: 4,753	PAL in TV's is different to PAL in logic chips, in this case it stands for Programmable Array Logic and is a way of programming logic functions into a chip!

13 April 2017, 22:27	#6
Reynold1 Posts: n/a	Thanks BarryB! I appreciate the clarification

14 April 2017, 00:21	#7
McTrinsic Registered User Join Date: Feb 2014 Location: Germany Posts: 527	Hmm, some A2000s had a small fix that reminds me of that but I don't have a link ...

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