1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

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derkom
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1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

Post by derkom »

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dazcoull
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Re: 1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

Post by dazcoull »

Has that board been recapped or changed in any way? Notice a few minor differences to mine (which is otherwise exact same model of board)
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Mine has since had new 2.06 TOS chips and replacement RAM from the good man Exxos :-)
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Re: 1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

Post by derkom »

It was not unusual for Atari to change suppliers for parts like capacitors, depending on who was the cheapest at the time. I also can't promise that my board in the first post hasn't been altered, since it was not originally mine.
dazcoull
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Re: 1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

Post by dazcoull »

Thanks, judging by the flux residue on the rear of the board, looks like something was done just above the RAM, perhaps RF modulator repair?

It truly is amazing how many board versions there are!
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sporniket
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Re: 1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

Post by sporniket »

Today I opened my STE to check some values that are very illegible on the schematics. I took time to do a series of flyby shots for future reference (to spot components)

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sporniket
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Re: 1040STe CA401177 1991, Soldered CPU, C398789 DMA, Ajax, integrated Blitter

Post by sporniket »

...And now, the solder side of the motherboard...

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