Two of mine (I have four) didn't work properly when I bought them.
The first one had a bad fuse on the main board, on the underside, and the processor card didn't like to seat properly. Replacing the fuse and ensuring the assorted cards were installed properly got that one to work.
The second one worked every now and then: some days it booted on command, some weeks it wouldn't boot at all. After some component swapping, I discovered that the power/IO board was bad. No fuses were bad, no components were bad, but it still wouldn't work; any board from a different machine would work, but the old board wouldn't work in any other machine. So, since I couldn't find a schematic or anything for it, I just replaced it. The new board works in the one machine with no problems.
Replacement boards are occasionally seen on eBay, which was where I got mine.
Those machines will usually boot without any batteries installed, they're not like the Mac II or an LC or anything. If you're not even getting the GLOD, you might want to check that everything is seated properly, followed by the little fuses. There are like 14 of them spread between the power board and motherboard.
The first one had a bad fuse on the main board, on the underside, and the processor card didn't like to seat properly. Replacing the fuse and ensuring the assorted cards were installed properly got that one to work.
The second one worked every now and then: some days it booted on command, some weeks it wouldn't boot at all. After some component swapping, I discovered that the power/IO board was bad. No fuses were bad, no components were bad, but it still wouldn't work; any board from a different machine would work, but the old board wouldn't work in any other machine. So, since I couldn't find a schematic or anything for it, I just replaced it. The new board works in the one machine with no problems.
Replacement boards are occasionally seen on eBay, which was where I got mine.
Those machines will usually boot without any batteries installed, they're not like the Mac II or an LC or anything. If you're not even getting the GLOD, you might want to check that everything is seated properly, followed by the little fuses. There are like 14 of them spread between the power board and motherboard.