68kMLA Classic Interface

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Dying Mac Plus
Posted by: WakelessFoil on 2020-03-20 22:12:40 So I’ve been playing with my Mac plus a lot recently and I’ve noticed this high pitched whistle that the machine makes when I turn it on (it also appears seemingly out of no where while in use). I read some forums and consulted the dead Mac scrolls; I think it’s either the fly back transformer or the width adjustment has gone bad. Everything else on the computer seems functional but I’m told that this issue could get worse. I want to purchase the right parts but I need help finding them. It’s my understanding that the newer “C” type transformers are more reliable. Please help! heres the items I found below: Flyback: https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F400922654856 L2: https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F333476578925 PS: I also have a spare parts plus that doesn’t display a constant image but flashes when you smack the side. Idk if this helps.
Posted by: dochilli on 2020-03-21 02:42:05 Your second mac needs some resoldering on the analog board. There are some cracked solder points at the connection from the analog board to the screen (J1 and J4?). Just resolder it with some fresh solder and it works again.
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