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Old 11 August 2019, 12:43   #1
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Amiga 2000 Rev4.4 Resistor Array types

Hi All,

I am attempting the repair of an Amiga 2000 which has suffered corrosion damage. The resistor arrays which sit along the right side of CPU have some corrosion. I would like to remove all corroded parts and replace with new parts where possible. The resistor packs/arrays along the CPU are only partially listed in the only schematic I can find. They are:

Board  Label     Component Label      Value     Pins
RP900            BI M10-1-103j 737    XXK      10 pin
RP101            BI m10-1-472j722     2.7k     10 pin
RP111            ????                 ???      10 pin
RP901            ?????                XXk      10 pin
Does anyone have the missing information from this list above, or even better, a complete list of components with their correct value? The schematics at Amigawiki.org for the A2000 are incomplete.

Also, could someone recommend where I could buy these?
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Old 13 August 2019, 16:16   #2
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Looks like http://www.retro-commodore.eu/amiga-tech/ have a service manual for a 4.0 rev, see page 60 of PDF for the BOM with various RP.

Not sure finding exactly the 4.4 schematics is going to be possible, but the 4.0 should be more close than 6.x (the 6.x does remove RP900 and RP901, that's why they are "XXX")
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Old 14 August 2019, 13:17   #3
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Thanks for sending that. That is really helpful! I will read through these documents and hopefully I will find my answer.

Thanks heaps!!
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