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I use a Metcal 5200 (and used a 500 for a long time). It’s the best soldering station I’ve ever experience and have tons of tips for it that are compatible with the thermaltronics systems. Just check out the Metcal cartridge catalog. There are hundreds of choices. I love the near immediate and...

Looks like C6 leaked on the EGRET which may be preventing soft power from working.

Not really. I did test a lot of stuff in the horizontal section of the analog board but didn't find any culprits. Your symptom looks the same as mine? Do you have a thread going about it already? If not it'd be great to see some photos or videos.

Congrats on launching the store! It'd be nice if the page could detect the viewer's region and default to only showing the items that are for that region. A widget to then change it manually would be good for folks using VPNs and such. Thanks and good luck with the shop.

I deleted the revised file from my post to avoid something misleading out there. Perhaps it'd make sense for someone to create a fork and revise to show the bodge, while leaving the original redraw as-is.

Before this get's merged, it'd be good to have a few people sign off that it looks right. Pages 1,3,5,6 and 8 were updated. Page 5 shows UE7 Pin 6 going to AS* and the other sheets update their AS* reference to include page 5. The edits were in a newer version of KiCAD that messed up text...

@YMK is this fix only applicable to the reloaded board or are you saying that fix is the bodge seen on earlier rev original boards?

@Stephen if you can find a MFR-1350 for $200-250 and sell your SP-440 for $150-200 it'd be worth it IMO.

Seeing @mitchkramez 's other Metcal post reminded me to update this one. In July this year I found a Metcal MFR-1350 desolder system on eBay for $200. It came with a couple of tips but no stand or pistol grip. I ordered those new from Metcal but, still ending up with a great deal overall. The...

How is the internal drive jumpered? I recently had a LCIII that wasn't mounting external SCSI devices of any sort. I noticed the internal drive (a transplant fro, something else) was set to ID1. I changed it to ID0 and external stuff started to work.

I really like How Macs Work. Lots of great illustrations and a clear explanations. https://www.goodreads.com/book/show/2626041-how-macs-work?from_search=true&from_srp=true&qid=shmkWSBvZO&rank=1 There was even a revision for later-90's things...

I forget which version of the PSU I have, but hopefully these help you.

Correction: the pins to jump for power on are 1 and 5.

I've been triaging a new-to-me Apple Network Server 700. Initially it'd boot okay but its hard drive was dead. It sat for a day while I found a boot CD for it and then just wouldn't power on. At best it'd have an initial blip of power but then power off in less than a second. I figured it was...

@Tony359 that's a good tip. Thanks The Swyft card takes over the ROM and stops spinning the drive if nothing is inserted. If something is inserted it goes into normal IIe mode and boots the disk.

This is a mediocre display, but was common to pair with Performa's of its day. It's a Philips C3G9179 shadow mask CRT/Analog board with an Apple badged enclosure and 15-pin connector. It only operates at 640x480. The display I found worked okay, but its power button quickly broke. It'd press in...

Swapping the ROMs and trying the drives on another working IIe had the same symptom --- oof. I tried two more drives and one of them worked. So my previously known-good drives were no longer good o_O One of the original drives started working after I re-seated its 3470. I swapped in a...

Another update: I swapped the ROMs and tried another known-working PSU and the issue persisted. Next I'm going to swap the whole logic board.

A little progress update: This IIe came with a Swyft card. This card disables the built-in ROM to do its own thing. But when installed in slot 3, it would prevent the computer from booting. I cleaned its socketed ICs and it successfully booted. When it did, the (empty) disk drive would only...

From that description it sounds to me like you have a continuity issue that clears up after warmup. Something needs cleaning and/or reflowing IMO.