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Hi guys! I asked this same question on LisaList2 yesterday, but I figured I'd post it here too in case anybody can help. I've been working on replicas of a bunch of Lisa PCBs lately and so far I've been able to get everything really accurate to the originals, with the exception of one thing...

I have an Apple Lisa 2/5 that was working fine up until about a month ago. The screen started randomly collapsing to a horizontal line and eventually got to the point where it was unusable because it was a horizontal line all of the time. After a few weeks of troubleshooting, I found that the...

I just received a Color Classic with a Performa/LC 575 logic board (https://www.ebay.com/itm/Apple-Macintosh-Color-Classic-MYSTIC-computer/233213293063?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649) and I am trying to get it running again. I tested the computer with my...

I am currently repairing a Mac Classic II that I picked up a few weeks ago and I have found a capacitor that appears to be burned on the bottom of the logic board. Of course, I need to replace the cap (C39), but the schematic for the logic board shows a weird symbol after stating the value of...

I recently bought a Macintosh Quadra 700 off of eBay (https://www.ebay.com/itm/Vintage-Apple-Macintosh-Quadra-700-M5920-Desktop-Computer-w-Harddrive-Mac-iMac/273781054522?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649) and it has some corrosion on the logic board from a leaky...

I just recapped my Macintosh IICX because it was having the common issue where the computer won't turn on and the power supply just clicks over and over again. Also, the sound wasn't working. After recapping the computer, the machine turns on just fine, but there is no chime and nothing is...

I recently pulled my Macintosh Color Classic out of storage and found that the sound was very quiet. I could hear it if I put my ear up to the computer, but it was very faint. I did some research and found that this issue is often caused by bad capacitors, so I recapped and cleaned the board...

Hello! I found a Radius Accelerator SE card in a Macintosh SE that I recently acquired like the one seen in the image attached. It contains a 68020 running at 16 megahertz and also has a 68881 FPU. The card seems to work fine, but I can't seem to find much information about it or what it is...

I recently picked up a PowerBook 180c that boots up and seems to work perfectly, with the exception of the floppy drive. It will read the floppies just fine, but the Finder always shows the disk locked icon, regardless of whether the disk is write-protected or not. I took the floppy drive out of...

Hello! I recently purchased a broken Color Classic off of eBay and it arrived in the mail a few days ago. The capacitors on the logic board are leaky and I ran the board through the dishwasher to get all of the goo off. After doing this, I managed to get the computer to work and I plan to recap...