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Last year I bought a Mac II and the owner gave me a LaserWriter IINT that had been sitting for decades in his basement. It's very clean, just dusty. I bought a LaserWriter IIg controller board and recapped it and installed it in the printer. At first I got a no paper flashing light with the...

The PM7100 is a huge pain to work on. I have three PM7100 boards all with the same issue - no chime, no video. This one has a Sonnet G3 card, but I remove it to add the standard video card. Yesterday on my working PM7100 it booted fine before shutdown and added new 32mb RAM to bring it to...

I have a problematic Mac SE FDHD with lines going across the screen. I recently recapped the analog board and the (Sony) power supply. I also tried a second analog board and a (Apple/Hitachi) power supply and had the same screens. I am getting proper voltages on the power supplies and I have...

I have been working on a Mac IIx motherboard that will not boot. I have repaired the startup/ shutdown circuit and it will turn on by pressing the power button. However, I do not get a boot chime nor video. There was slight battery corrosion and slight capacitor corrosion near C9. Nothing major...

I have a similar issue that is mentioned in the PowerBook 140 Display Blue posted by Powerbook27364 recently. I've successfully recapped several PB screens, but this one is bugging me. At first I got a full display but the top half was broken and dithered. I went back cleaned everything...

I have two Mac IIfx boards I am working on. Both give me an immediate death chime at boot. Here's the history of these boards. I pulled them out of storage in 2014 and found the batteries had leaked. Not knowing how to repair the damage then, I removed the batteries and placed them back on my...