Black screen in my atari xe65

[shoestring]

It's much easier to swap the parts from this faulty XE into a known working machine until the working machine breaks, rather than swap good parts into a dead machine. The reason why this works better is that you might have multiple faults.

 

So I'd be starting with the major chips first. Sally, GTIA, ANTIC, MMU, OS ROM then move on to DRAMs one by one, last but not least would be FREDDIE and other support logic. If you have a logic or RAM tester then it makes life a little bit easier.

 

 

 

 

[somacast]

1 hour ago, shoestring said:

It's much easier to swap the parts from this faulty XE into a known working machine until the working machine breaks, rather than swap good parts into a dead machine. The reason why this works better is that you might have multiple faults.

 

So I'd be starting with the major chips first. Sally, GTIA, ANTIC, MMU, OS ROM then move on to DRAMs one by one, last but not least would be FREDDIE and other support logic. If you have a logic or RAM tester then it makes life a little bit easier.

 

 

 

 

Thank you very much , i do have logic probe, however i will need to dig for some schematics I guess (My profession isn't electronics or CE , I am  a Mechanical Engineer & electronics hobbyist)

 

thnx 

[StickJock]

9 hours ago, shoestring said:

It's much easier to swap the parts from this faulty XE into a known working machine until the working machine breaks, rather than swap good parts into a dead machine. The reason why this works better is that you might have multiple faults.

 

And also so that if there is something wrong with the board that caused it to blow up a chip, it doesn't blow up your working chip if you put it in the bad board.

 

[somacast]

noted , thnx ?