Franklinstein
Well-known member
I have an LC 520, and it no workie.
I set it up, flick the rear power switch to on, and it makes a really quick (seemingly shorter than usual) CRT-energizing noise. I press the power button on the keyboard, and nothing else happens. Tried a few more times, nothin'.
I put a new battery in it, no dice. I've tried every other known Mac resurrection technique, and it's still dead.
So, I pulled the logic board and tested the power supply to the logic board, and I'm getting only a few millivolts, which doesn't seem right (it should supply at least +5v on one of those leads). So I'm guessing that it's the analog board, not the logic board.
I pulled the analog board out a little bit (I didn't want to disconnect all of the CRT leads) and looked for cold solder joints, burns, etc, and found nothing awry. I haven't removed the covers from any of the shielded areas yet, though, because I'd have to undo the CRT's cables to get at 'em.
Anybody else have one of these, or a similar model, that they've been able to resurrect? Or perhaps have a suggestion as to what part of the analog board could be dead?
I set it up, flick the rear power switch to on, and it makes a really quick (seemingly shorter than usual) CRT-energizing noise. I press the power button on the keyboard, and nothing else happens. Tried a few more times, nothin'.
I put a new battery in it, no dice. I've tried every other known Mac resurrection technique, and it's still dead.
So, I pulled the logic board and tested the power supply to the logic board, and I'm getting only a few millivolts, which doesn't seem right (it should supply at least +5v on one of those leads). So I'm guessing that it's the analog board, not the logic board.
I pulled the analog board out a little bit (I didn't want to disconnect all of the CRT leads) and looked for cold solder joints, burns, etc, and found nothing awry. I haven't removed the covers from any of the shielded areas yet, though, because I'd have to undo the CRT's cables to get at 'em.
Anybody else have one of these, or a similar model, that they've been able to resurrect? Or perhaps have a suggestion as to what part of the analog board could be dead?