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I have finally cleared the decks enough to get back to a brain-dead LC II that came my way. It has never booted. Back when, I did some quick poking around, saw some signs of capacitor death, then recapped the PSU and the logic board and cleaned it up. Still: after power on, all voltages are...

I am nearly done repairing a Centris 610 of unknown provenance, literally pulled from the trash. I thought to look at the CPU and it's a D39H mask LC040 (20MHz). I can't be certain it shipped with that CPU. I had a spare E23G (25MHz) and swapped it in, if only for cooler temps. So the D39H is...

Thanks to an assist from @eharmon, my IIcx's Nubus RasterOps 8L video card is now a Nubus RasterOps 24L video card. Using a blank EEPROM left over from that IIcx's boot ROM repairs and a ROM dump eharmon had in his library, the VRAMs I found to fully populate my old 8L now allow it to show not...

Idle hands while awaiting the next delivery of restoration electronic parts... Both of my Mac IIcx power supplies came with broken fan brackets - missing one of the major retainer clips, or the lesser snaps that keep it flush with the bottom of the enclosure have lost their heads. Just brittle...

Hey all. I have a Nubus network card that looks to be in fair shape, but which does not appear at all to MacTest, TattleTech, or MacEnvy. After searching here, it seems the most optimistic theory is the card's DeclROM is not responding or has bit-rot. Are there any apps that ignore the system's...

Here we go. My epic SE restore saga - final chapter only. 'Epic' means long-winded. But this is why we're all here, right? Sharing what it takes to keep getting the most out of our legacy Macs? This Cabletron Ethernet NIC is split between a PDS board parallel to the logic board and a...

I have restored an SE. After recapping the analog board, and going back today to replace CR2 and Q2 b/c the Dead Mac Scrolls described a symptom that might have been this one, I haven't resolved the final video issue. The video is solid, but at unpredictable intervals the entire screen...

Hi all, dusting off an SE I recapped oh, three years ago. The video needed readjustment, and after correcting the height I noticed that the vertical height coil seems to have no screw tap in there. I can't tell for sure - does it accept a (plastic) Allen wrench instead? Or is the plastic...

Post in a nutshell: repairing a Centris 610 I literally found in the trash. It was looking most excellent until I plugged in two VRAM SIMMs... and the SCSI bus died. Which puzzled me. Now, I've found a chip running much too hot. -- -- details -- -- Perhaps the VRAM had nothing to do with it...

I was lucky to land a non-working IIcx on the cheap. It looked better than it really was; the PSU would not stay on but would instead rapidly cycle on and off. After a basic recap, nothing improved. Lifting one of the chips in the PSU on/off support area (under the FDD/HDD caddy) revealed a lot...

Hello all. I have an inventory mismatch going on here. I've accumulated a few working manual inject SuperDrive floppy drives, Sony and Mitsu. I also have a few LC-type systems that would complete their restorations if they finally had floppies. Trial and error tells me that the LC I and LC II...

I found an LC (LC I) that was a bad case of battery leakage and beyond repair. The leakage was confined to one half of the logic board, however. I did my best to remove some of the healthy-looking chips. Is anyone here is interested in them? Given their dubious history plus the thermal stress...

Hi all - I'm about to start a refurb on an LC (LC I). It's not here yet, but already I can see from the advance photos that the external SCSI DB25 and the video DB15 are rusted up. (The insides may be unsalvageable.. don't know yet...) Has anyone already found replacement parts from Digikey or...

Well, I'm stumped. I recapped a Q605 and got it to boot, got the sound back, etc. It wasn't a trouble-free recap, though, and there are multiple bodge wires now. What I see now is that the external SCSI seems fine. I can boot from a Zip that has the termination switch 'on'. I have no other...

.. was sorting through storage today. I always get out my Red Book and page through it when I do this... ah, the memories.

I have a Quadra 605 logic board that lost some solder pads during an aborted recap. Five, possibly six of eleven caps have lost one or both pads. I completed the de-capping and am now assessing whether or not I have the skill to restore the board. I have limited tools and experience with such...

Hello all. Avid readers may recall I recently repaired an SE FDHD. Along the way, I noticed some infrequent, momentary narrowing of the CRT image, so I recapped the analog board. It seemed to be fixed so I reassembled the case and declared victory. But last night the screen had a period where it...

Hello all, good day, TL;DR : In sum, I'm trying to resolve a dead HDD in an otherwise promising Mac SE FDHD. What follows is a description, some ideas, and a question about the 53C80. -- A neighbor found her husband's old SE FDHD in the attic and I offered to check it out. It is a late model...