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Author Topic: Timing fix for A1200 1.D4 motherboard?  (Read 12047 times)

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Offline monami

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Re: Timing fix for A1200 1.D4 motherboard?
« on: January 28, 2008, 05:43:16 PM »
i think thats a slightly different fix than i saw on the 2b board. are there different versions of the fix also out there?

also "NOTE: My Rev 2B motherboard does not have the following 3 modifications and it works OK. AFAIK it came from a Commodore A1200."

does this mean what i think? that he doesn't have the link work etc but did remove e123c and e125c and changed r118 to 220 ohm resistor? that would be easier. i wonder how long it has been running ok like that?
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Offline monami

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Re: Timing fix for A1200 1.D4 motherboard?
« Reply #1 on: January 29, 2008, 07:14:29 PM »
"Only revision 1D1 boards are suitable for this type of heavy expansion."

the fix works for 1d4 boards. and then you can expand them. and they work 100% well i know i did it on mine. :-)
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Offline monami

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Re: Timing fix for A1200 1.D4 motherboard?
« Reply #2 on: January 29, 2008, 10:00:34 PM »
couldn't you just use the amiga and add bits back? a process of elimination... you will find the troubled component. i luckily swap parts with my other machines when things start acting up.
i will bless them that bless you. i will curse them that curse you. gods promise to his chosen people the jews.