Jump to content
Sign in to follow this  
Falter

Atari 800 White Screen of Nothing

Recommended Posts

Hey guys,

 

So I'm trying to figure out this early 800 I have and so far nada. You power on, and with the composite out you get a solid white screen - the TV output just gives you a little less static.

 

Nothing really seems to change matters, cartridge in, cartridge out. I even have a spare OS cart but nothing there either. I've removed and reseated every chip in the thing. I've checked the RAM chips in another computer that uses them. I've even taken a DMM and, with the cards plugged in one at a time, confirmed continuity between the topmost part of the card 'teeth' and the bottom where the socket pin is soldered in. Kind of dizzying work and I *may* have missed one, but all that I tested came back ok.

 

I'm wondering if I should just buy a known good motherboard from Ebay or something just to test with, or a complete system... just to see if the cards are any good.

 

When I first got a power supply for it it was doing something similar and if you pressed on the OS ROM card with a bit of force it'd work. I figured maybe the socket needed cleaning to so I did more cleaning but after that it was white screen of death forever.

 

Would be grateful for any suggestions/advice.

Share this post


Link to post
Share on other sites
Posted (edited)

I have a drop in replacement sitting on my benchpost-31298-0-48146600-1552450393_thumb.jpeg

 

Tested with SuperSalt and running great. It was a 800 I bought off Ebay.

 

Arrived in pieces, as did the 810.

 

Caps are good and I cleaned it Well with Qtips and rubbing alcohol. ( as usual )

Edited by Paul Westphal

Share this post


Link to post
Share on other sites

Thank you.. I did a purchase on ebay and will see but if yours is still available I may come back to you. Appreciate the offer!

 

I have a drop in replacement sitting on my bench 5470F329-2F92-4AD5-A6DE-E68D9D8BBFA3.jpeg

 

Tested with SuperSalt and running great. It was a 800 I bought off Ebay.

 

Arrived in pieces, as did the 810.

 

Caps are good and I cleaned it Well with Qtips and rubbing alcohol. ( as usual )

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...