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Yes, pass through connector, used mainly to drive an external video projector. pretty common.

Thanks, yes present in the manuel, but never hurts.

Hi, won’t argue with price or setup, but will clean that dusty board for a « as new » look.

Yes your 5 volt rail is far too high (are you sure ?) when the 5 volt rail goes high, the 12 volt rail goes up also, and yours is not. Probabaly two issues here, as i don't see why the floppy drive is not working.

At some point i ordered several units of that device. https://tulip-house.ddo.jp/digital/SDISK2/english.html Out of the two units i have, one is working fine, while the other is not. There is not much about it, a single 74LS chip and the Atmega 328. If i take the Atmega from the good unit...

Probably Rom

I managed to build a socket adaptor for testing purposes (ugly but works) Using a known bad Rom, it was read ok and comparing it with a good rom .bin image, i know now for sure is bad.

Hi, a Macintosh Mouse can be used, but those are getting scarce nowadays, as they are the ones from the Macintosh 128/512 and Plus units. keyboard in not common with another model, and was made country coded (IIRC a french keyboard for instance will work in any Lisa; but will display a French...

Probably finding a 30 cm old vintage TV will be a solution, won't be green or amber, but will be a suitable replacement for the time being.

If you have a sad Mac, probably a ram or Rom issue. I will try with the former 1 Mb sticks first.

Won't be easy, find yourself another unit with a bad board or PSU... not easy again, but probably the best solution than finding the screen only.

You can repair the back door cover easily. use a needle or similar, start heating one side and push it on the cover where the stand was before. When done, heat the other side of the needle, and slide the broken stand on, the needle will secure both parts together.

Yes, no problem, hoping the issue is not in the board, the eject mecanism is pretty reliable, only the small gear is troublesome.

Infrared IIRC…used it once to copy files from a 1400 to a 5300, worked !

One of the usual suspects is the Optoisolator at U3, cheap enough to have a try, also are you sure all the joints are spotless ? (most are not and some are not easy to spot)

No information sorry, but the main difference is that the one from Sweet Micro System is the original one, while yours are clones. So probably will work as the original one, they apparently have the same components.

What cable are you using ?

Can be a lot of things. Loading from audio is not reliable, and a very good audio cable should be used. Also the sound volume should be set pretty loud. Last be not least, memory space can be an issue, an you can run out of it quickly. I tried a few times the audio thing, but was not the...

In the System folder, there is a startup one (IIRC) Removing what is inside should solve your issue.

You can, but it probably won’t work. The logic board is not providing termination as is, a location is present in the board next to the scsi connector for a diode. So one one should be added first.