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Looks nice. That's a lot of supports to have that locking tab. I would guess with the weight of the BlueSCSI, the friction alone would hold. Would it make more sense to get rid of the locking tab and cut down on 90% of the supports?

Yeah, the LEDs were installed backwards. As for the 341-0875-A, I was mistaken. I had taken it the internal board out of an old Apple Keyboard II (M0487) not the AppleDesign. I've been trying to find more controllers and unfortunately, I only had a single keyboard with 3 screws, made in...

Possibly. I didn't actually realize the LEDs were polarized. So It is very possible I did it wrong. I'll be sure to get the correct polarity on my second board. I tried 2.54mm spacing but on my ANSI board they are closer to 2mm spacing, so my 90 connectors didn't work (a 4 pin connector...

Thanks for the response and for building out this PCB! I used the ANSI layout. I was waiting on key caps to come in before posting pictures, but ended up harvesting the caps from a Kechron K2 I had. It looks good. I'm not sure if I used the wrong LEDs, but I don't get any of the LEDs to...

OK, So I answered my own questions. First, I made a massive mistake soldering on the key switches without realizing they need to go on AFTER the red rubber later and the top plate (the part with the stabilizers). So desoldering all those switches was fun! The correct order of assembly, for...

@demik , I got my PCBs in today. I am trying to re-use the ADB cable from my original keyboard. I'm not too familiar with the pin markings for the cable (G V A P E). The wires in my cable are black, white, red, green, and blue. Any help on which goes to which? Or if you know which pin on...

I replaced it with one of @Androda 's boards. It was working. I put it up for a bit and now it only boots a fraction of the boot chime. Battery voltage is fine...

I might be in the market for a Portable logic board. Mine was originally working fine, but now refuses to boot past a partial boot chime. Haven't had a chance to dig in to figure out what might be going on, but I had a decent amount of damage around the hybrid board and I repaired a few traces...

I do as well, however: 1. I don't want to put the wear and tear on that keyboard 2. That arrow key layout! I'm going to be trying to put one of these together. Only have one keyboard with the correct ANSI chip, but will be a fun project. Steal some switches from my son and will be nice to...

I have a chance to pick up a Lisa Mouse that was originally with the Lisa 2 I picked up earlier this year. I was looking on eBay and the prices are crazy. I am currently using one of my Mac Plus mice and it works fine, but I really would like to have the original keyboard and mouse. Is the...

Thanks again for you help and your patience! :)

Went to look at the board. I'm an idiot. It was UF8...

No, I mis-typed. It was the UG8 chip... Too many chips and schematics rattling around in my head. I updated my post to correct it.

OK, so we have a winner! It seems like the UF8 chip was not behaving properly. I swapped it out and the frequencies look good and the screen image is whole now! SOLUTION: I swapped out the malfunctioning chip at UF8 for one from a parts board. Thank you so much for your help!!! Edit...

Yes, I meant 119.6Hz. Pin 2 was 11.13KHz (same as TWOLINE). I show 11.13 (my multimeter isn't great) on pin 12 of UC7, confirmed that's what I see on pin 1 of UF8. Pin 3 on UF8 also read 11.13, as does pin 2 on UG6. On UG6, all the pins cut the frequency in half from 2-7, but pin 8 seemed...

OK, thank you so much for the insight. I tested and HSYNC is 22.25 and the TWOLINE is 11.125. BUUUUT, the VSYNC is 119.6KHz, which sounds like the reason for my problem (VSYNC being 2x what it should means HSYNC is relatively half of what it needs to be to keep them in sync. What drives...

The sync pins are all properly connected - no bad traces or pads. I don't have a scope to check signal (nor do I know what I'd be looking for). Is it possible its with the video multiplexors. Don't those break up processing of the video signals and then merge them together? If 2 of the 4...

The analog board has been ruled out, as I have tried a working board with this analog board and it displays fine. I also tried this logic board with a different analog board and it displayed improperly as well. If it was an analog board problem, wouldn't the image be drawn improperly. From...

OK, I'll try to decipher the schematics and do some checking. Any good resources for how to read the schematics here: https://museo.freaknet.org/gallery/apple/stuff/mac/andreas.kann/schemat.html I'm not an electrical engineer and have no background in this, so I don't really know how to read it.