SE will only boot when turned on side or upside down

plat

6502
I thought it was all working fine when I was testing it open, it would boot multiple disks and run fine. It turned out only because I had the floppy drive sitting upside down (to access contacts on the bottom of the board I was testing). Now that it is fully back together and sitting upright it will immediately kick back out most disks, a handful it will start trying to read, show the happy mac then panic and kick it out. A couple times it has crashed on error code 6 on the top row, FF on the bottom while booting.

Just turning it on the right side boots every disk fine and also formats disks fine. If after it has booted I turn it back upright it continues to read and format disks fine. Only boot seems to be a problem and not sure what to think about that.

Any ideas or seen something like this before?
 
Back
Top