Hey guys! I have been getting more and more excited about Apple IIs for a bit and I finally broke down and bought a IIgs on Ebay. It arrived and I set it all up and played with it a bit today. Turns out it is a Rom 01 with a 1Meg memory expansion card. As I played with it I noticed two things:
1) There is a line in the middle of this screen that shows up only when text or graphics other than the background color intersect it. It shows up on the RGB monitor as well as the composite port.
2) It crashes when loading some software.
I ran the CTRL+Option+Reset system test and it failed with:
I take this to mean a memory error in bank E0.
I'm thinking that maybe the bad memory could be why there is a line in the screen (bad memory in the video section)?
Two main questions:
Do I try to get a full or partial refund on ebay? I'm tempted to ask for at least partial because it isn't in full working condition but I'm not sure if I should. In some ways it just seems like with equipment this old you get what you get.
If I want to fix it where do I go from here? I have to figure out which chip is bad and desolder it and replace it with a new one?
Thanks for your help!