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This is the one I got: https://www.ebay.co.uk/itm/401906276099 It's pretty much the cheapest stereo microscope with a boom arm amscope sells but I have been very happy with it so far

Your always welcome to send it my way, those TSSOP48 parts are no match for my microscope and FX-951 :)

Schematics for the SE/30 are available here: https://museo.freaknet.org/gallery/apple/stuff/mac/andreas.kann/schemat.html There is a modernized version somewhere that is easier to read but I don't know if the top of my head where you cam find them

You'll have no problem removeing chips at 360C unless you linger with the hot air for a really really long time, I have been known to use 450C before and haven't killed a chip yet! (450C will easily damage older boards though so I wouldn't recommend it!)

Top and bottom copper are done! Next is the inner planes which are always fun.... might have to get the sander out for that :)

It's been a while since I last posted about this but work has been ongoing, testing of the board revealed one serial port did not work, this was tracked down to a missing trace coming out of one of the 26LS30's, patching this fixed the issue A V1.1 board has been produced with fixes for all the...

Taking a break form working on my reverse engineered LC's, by building one of Kai's Classic reloaded boards instead! :)

Are there any random parts you don't have? :ROFLMAO:

With the (hopefully) final revision of the LC 1 board and the second revision of the LC III both with JLCPCB for manufacture it;s time to turn my attention to the LCII. This was initially going to be the second board LC board I worked on before that pesky LCIII board distracted me... The boards...

Here we go again.....

Oh don't worry, you can rest assured the very first thing I will be doing once they are ou the packet is posting a picture on here :)

And V1.2 PCB's have been sent off to JLC! I wanted to go for matte black + ENIG as a finish but that added about £20 to the cost of 5 boards! In the end I went with purple + ENIG as the purple LC III board looked real nice

I have to confess I'm not 100% sure there, I was testing it on a LCIII when I did my test's, I would expect the 45 would be the same but I haven't personally tested it. Yeah it's proabley enough for a LCI with a SCSI2SD, but your crazy souped up LC475 might require a tad more juice than one of...

-5V isn't actually required for the LC series to work, IIRC it is only used for serial Those ext hdd psu bricks do work fine (I have seen a couple of people use them) but I would worry about them being a little on the under powered side if you have spinning disks or PDS cards installed

And after much confused probing of the board the mystery NVRAM issue has been solved! So what was the issue? something bizarre and abstract? Not really.... One single via which should be connecting pin 4 of the MC34064 at UD9 to GND was instead connected to nothing One small piece of bodge...

Scratch that, I just found a second fault. I *think* this is the cause of the NVRAM weirdness but it's gone 2AM and I have work in the morning so I'm not going to be able to fix the issue and verify my theory until tomorrow (OK later today if we are being pedantic...)

I have seen that said about a few macs (notably the SE/30) and would be really curious to know the exact reason, I personally have 2 chip simms in both my SE and SE/30 and have no issues with them

Personally I normally have my iron set to 350°C but will go up to 400°C or even 450°C on occasion when more heat is required. 450°C will damage older boards really quickly in my experience so I wouldn't recommend going that hot when working on older stuff but I haven't had any issues using those...

Thanks :) And as a little update, the V1.1's have passed testing and the single fault in the PCB has been corrected. V1.2's will be going off to JLCPCB just as soon as I have finished cheking over the V1.1 LCIII design

I don't have one of these boards to hand to check but looking at the schematic it looks like pin 3 should be connected to ground so if you find which one is grounded and jump the other two you should be good :)