|Boot screen||204.94 KB|
|After pressing Reset and random typing from connected KB||217.64 KB|
I got an AII+ that appears to be working. It seems to boot, and I can type and see moveemnt on screen.
It is just the main board with only 16K installed. No cards
But there are horzontal bars inplace of charaters.
I have a working AII+ next to this one. I have swapped EVERY chip between them. The working AII+ still words fime. The broaken one still shows horzonal bars.
I can not see any evidance of damage to the front or back of the main boed. There has not been any after market work done. All solder points appear the same. and in good condition under magnification. But I may not be able to see a bad joint.
I might have folded a pin inder a chip, but I can't see any evidance of that.
I am looking for some help as to where to look on the board for problems.
The system was a storage unit find. The board was very dusty and had some cobwebs. Most chips pins, and the slots contacts show corrosion. I, of course, dusted and the baord throuighly befor any work started.