Recent content by GreenBar0n

Hard to believe the GLUE chip is bad, but with the correct clock signals at the those locations you showed above, the ROM slot should also be showing square waves. Have the VIA chips both been toned out and have complete continuity? Those are the link between the CPU, GLUE and ROM slot.

Do you see a good square wave for C3 and the E clock, at UI8 GLUE chip?

Good point, never asked if this was a V5 Reloaded board. @Steve Rieck , In the first post it says all your clock signals are good, you are getting good square waves with your scope in other areas?

Where are you clipping your scope ground to? Can you widen the picture to show your entire probe setup?

The ROM slot should be getting a solid square wave, what does Pin 4 of the ROM slot show? Make sure to press the Reset button a couple of times to see if the wave form changes at the ROM slot.

Starting on Page 46 of the PDF, or Page 45 and 46 of the Simasimac Repair Guide: are you able to see the clock signals in the ROM slot without the SIMM installed?

Have you checked all of the Reset pins yet? UB10 and 11 only Reset on Pin 5, don't worry about Pin 6.

According to the Simasimac Repair Guide, everything starts with the ASC UE10 chip, the Reset line is released from there before anything else will start. I would verify the Reset line on UE10 is operating correctly, first. I would then check that the Data lines have continuity from the CPU...

The PSU takes a bit longer than the other boards.

If the pad lifts off the PCB, it will still be connected to the trace that leads to the rest of the circuit, literally hanging by a thread. Which can still be repaired by splicing into that trace. I push the old caps lightly down and twist them back and forth with needle nose pliers, until the...

Y3 confused me too. Here's what my scope signals looked like for Y3 and what I was told on the following page: https://tinkerdifferent.com/threads/2-macintosh-se-30s-full-restoration.4910/#post-43041 Y3 was fine, just hard to measure accurately.

The only thing the Dead Mac Scrolls says about the SE and checkerboard, which apparently only affects the FDHD model: Maybe the ROM sockets need a cleaning?

It would've taken me forever to find and understand all the different file formats available, thanks for the excellent info, Mark_W!

Would never have figured that out, much thanks! The image I had built from savagetaylor.com and Ron's Computer Videos tutorial, had both versions, Disk Copy v4.2 and 6.3.2 - threw 4.2 in the trash and 6.3.2 instantly installed the After Dark 2.0 image: B&W flying toast ensued. Will have...

Got the games copied over and working, I think I have a handle on the .SIT files now. Really enjoying this! But for the Apps, I'm having a bit of difficulty with .BIN, .HQX, and image files. I was able to get After Dark 3.0 copied over in .SIT form to the SE/30's, and it's working, but Flying...