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I'm still trying.. No working IICX yet and i bought a VGA to DB15 adapter and tried hooking a powerbook G3 to it but no luck.

I hear ya though. I’ll put the diodes back on the original board.

They aren’t equally defective. The original boards power circuit works. The original board does not have cpu activity and no power up chime (when powers from either the stock power supply or externally from my atx supply). The new boards power circuit does not work. The new board does have...

Well it wasn’t exactly random. The soft power switch wasn’t working then I saw my original board of same Rev has the two diodes that are directly connected to the power circuit and the power circuit is working on the orig board with the diodes and it is not working on the new board without the...

The board revs are identical.

Since my original bad board that I’ve owned since new has then and the new board I got that is the exact same version number does not have them I thought someone might have removed them.

The original bad board we were working on has them. So I swapped and neither board behaved differently.

Yes all the same ram chips. Right video out. But no Nubus = no video. And it is odd that the soft power circuit isn’t working. Maybe need to rule out my atx power supply and or fix the power up circuit.

I do have a vga adapter and a modern LCD display though. But I think in need some NUBUs activity before anything. I put a scope on all the pins on the video connector and nothing.

Unfortunately that’s all I’ve got.

Well I transplanted those two diodes and it made no difference. Stock PSU turns itself on in low power more (the fan barely spins) and only the led on board turns on. Original board power circuit still works properly without the diodes. Anyway main issue is the sad Mac chime when powering...

I loaded all of the banks of ram but I’m not sure what the minimal requirement is. The video card is radius 24 bit. Apple high res monitor. I just noticed D1 and D2 are strangely missing from the board! Looks like D2 is in the soft power circuit and D1 is part of the ports circuit. Not...

Well I got back to it today. I now have the other board and i Re-capped it today. It is a much cleaner board but there were a few visible broken traces I had to fix. Anyway, after cleaning and re-capping, the board makes the sad mac sound on power up. But at least this board is booting and I can...

YEah Ive done that same thing with an Atari 520 ST cracked case. you cant find the crack anymore :)

I just powered it up again (without anything connected) and the brightness / contrast knobs don’t change anything. Is this “normal”?

That’s true. I’ve been down that road before :/

I will connect it to a vga monitor and see if it has the same issue.

Yeah, I’m wondering how tough it is to get tat front bezel off and then what kind of glue or technique i can use to repair it. I’ve never had much luck with superglue on these old plastics. Clouds maybe dremil out some sends or grooves on the inside to get the glue to stick better and use some...

** it arrived with the top left corner cracked so he gave a me a full refund.

No I bought it off ebay AS-IS...