Jump to content
Have You Played Atari Today?
2600|5200|7800|Lynx|Jaguar|Forums|Store  

SINGLE TOOTH

Members
 View Profile  See their activity

  • Content Count

    1,649

  • Joined

  • Last visited

Posts posted by SINGLE TOOTH

  18. Posted · Edited by SINGLE TOOTH

    Just got this 130xe computer in a lot.

    Turned it on, and get a green screen. Swapping power supplies with a known good one, results in a slightly more green screen. Still doesn't work.

     

    I opened the case and swapped the only socketted chip (the CPU?) and still nothing. The RF shield has some rust on it, not sure how damp it's been. Something I did notice is the color adjustment pot works when moving it.

     

    Anyone know how to fix?

     

    post-1274-0-00580000-1521407863.jpg

  20. Posted

    No idea how hot it should be, but it looks like a standard 7805 voltage regulator to me. If it is made by Fairchild Semiconductors, UC seems to refer to the TO220 packaging and their 7805's were specified to operating at 0 - 125 C, soldering at 230 C for max 10 seconds. I would think any 7805 in the same package would work.

     

    Nowadays people are talking about more efficient switching voltage regulators, but I don't know if those are feasible here or perhaps more expensive for the task.

    Thanks, I'm not so good at breaking down the codes on these packages. I ordered some 7805's to replace with. I don't think it should have been this hot. You can see it was even browning the board.

AtariAge
Forums
Store
General
Follow AtariAge

Copyright ©1998-2021 AtariAge

×
×
  • Create New...