I've been trying to revive a Personal IRIS 4D/20 that I got not too long ago. I did a PSU replacement on it and now that the power is good it seems to start up but it hits some sort of selfdiag error. The four red LEDs on the back of the Emodule turn on, then the bottom one turns off for a bit and then turns on again.
I've seen this table for the error LEDs
*ooo - DUART test failed
**oo - Walking bit memory test failed
***o - Memory address uniqueness test failed
**** - Graphics test failed
*o*o - Interrupt mask test failed
Assuming that the * represents on LEDs and the o represents one that's off, this would seem to suggest the issue is either the "memory address uniqueness test" or some sort of a graphics issue. Interestingly enough my old ViewSonic monitor seems to be getting some form of video signal out of the graphics, although the output is just black. So maybe there's a sync signal or something coming through. I didn't see anything on serial either but I think it might be wired wrong.
What counts for a "memory address uniqueness test"? Why does it swap between the two different LED outputs?
Anyone have any ideas?
I've seen this table for the error LEDs
*ooo - DUART test failed
**oo - Walking bit memory test failed
***o - Memory address uniqueness test failed
**** - Graphics test failed
*o*o - Interrupt mask test failed
Assuming that the * represents on LEDs and the o represents one that's off, this would seem to suggest the issue is either the "memory address uniqueness test" or some sort of a graphics issue. Interestingly enough my old ViewSonic monitor seems to be getting some form of video signal out of the graphics, although the output is just black. So maybe there's a sync signal or something coming through. I didn't see anything on serial either but I think it might be wired wrong.
What counts for a "memory address uniqueness test"? Why does it swap between the two different LED outputs?
Anyone have any ideas?