Recent content by DJComputerGuy

It has been a few months since i have last posted here. Pulled my SE out from it's storage place, i want to see if there is anything more i could possibly do to get that SCSI Bus working again. So far i have replaced the CR1 Diode and the AM5380 SCSI Chip, but still no cigar. I was debating on...

My SE had this similar issue when i first got it, i have the SuperDrive model just like yours, except the SCSI bus is out. When i first got mine, i would have to smack the side of it gently, then it would fire up, i probably need to resolder my analog board too, even though it  seems fine now...

Anyone else have any ideas of things that could go wrong with the SCSI bus?

Where would those resistors be exactly? i want to make sure i am looking at the right area of the board. 

Hmm, interesting, should i test those resistors? Also, yes, the 1N4001 did pop on my unit and was replaced. So, if i were to purchase another SE board, how much am i looking to pay for one these days roughly?

........ok then?

I had this same thing happen with my Macintosh SE SuperDrive, i pulled my working floppy drive out of my IIci to use in the SE, works 1 time externally, but once i put it in the case, it would spit disks out, known good disks too. I eventually got it to work again and it still seems to be...

Err, battery damage, i was fortunate that mine didn't leak, my battery was also socketed, so not sure if that made any difference. I dont think i can afford to get another board at this time unless someone wants to give me an offer, i am going to be getting a new MacBook Pro here soon so i am a...

The SCSI chip was a bit difficult to get out, but i managed to get it out none the less, from what i saw when i inspected the pads and stuff, it looks like the chip came out pretty cleanly, i even made sure every joint flowed properly, i even went as far to go and touch them up a second time, so...

I think you are right, i really don't want to do anything more to that board. Since i have the Superdrive model SE, do i have to get an FDHD board or can i get a regular board and swap the roms and the floppy controller? The ROMs and the IWM chip are socketed on my board, not sure if that goes...

Alright everyone, i have replaced the SCSI controller and still nothing. The system will not boot off my Hard disk, or my SCSI zip drive with a disk that contains system 7.1 made with my Macintosh IIci. Both drives boot off the IIci, but the SE still makes no attempt to blink a light. all that...

Update: With a bit of fiddling with the floppy drive, i have managed to get it back into fully working order. Not quite sure what i did, but whatever happened, i somehow managed to correct it. SCSI controller is dead, replaced diode, and nothing, i ordered a new SCSI controller chip from ebay.

I cleaned the heads on my floppy drive, made sure everything moved freely, and it still just happy macs and spits the disk out. Here is a video clip that shows what it does..... https://youtu.be/3PGMQgiZ_8E

Hopefully it didn't fry the IC, i really don't want to have to get another board. I guess i could solder on a new SCSI IC if i can get my hands on one if it comes down to it. my floppy drive is also not functioning properly, i think the heads may be misaligned, but i may be wrong. Whenever i...

Turns out, my floppy drive failed, so thats a bust, that was my last one. I figured out the issue with the SCSI bus (i think and hope) CR1 on the board was cracked and had resistance. I ordered a new 1N4001 diode off the ebays.