Search results

Hello, I’ve got this SE/30 that I’ve been trying to troubleshoot for quite some time now. It’s been recapped, the analog board works with a working SE/30 board. I’ve tried and swapping all the swappable chips from my good SE/30 board to my bad one, no difference. Replaced UE8, UF8 and the...

I’ve got a Macintosh iisi that turns on and chimes. It will output either a grey, yellow or purple screen for a second then the monitor will turn off. With no ROM it will stay on a solid color indefinitely. It also does seem to boot off a floppy disk and the cpu does get warm. It seems like a...

Recapped the display on a powerbook 145, replaced one of the caps on the inverter and replaced the display cable with a new one. But I only get the backlight, nothing is displayed on the screen. I checked for continuity between each pad and trace for the caps and all were good. Any ideas what i...

Does anyone know if the RTC chip on the SE/30 fails often? Something on the RTC circuit has failed as System 6 boots fine but System 7 always fails to boot. Already replaced the crystal oscillator to no avail. Part number is 343-0042-B. UTsource has them. Or does another macintosh use the same...

Having some issues trying to get the full mechanism working on both the -02 and -22 variants. Cleaned out the old grease best I can and added some new grease, but it is always stuck in the down position/loaded. It seems like there’s a bar near the near that makes it go from the up to down...

Hi, I recently picked up an LC 475 locally. I have recapped the logic board and used an LC 2 power supply temporarily until I can recap the LC 475 psu. When I boot it I get no picture out. I’ve tried multiple apple crts to no avail. Any ideas?

I've been having issues with my SE/30 SCSI for awhile now. I've replaced F3 as that was bad and it didn't help the SCSI situation. I then replaced the SCSI chip with a modern Zilog one and made some progress. it would finally see SCSI devices, but would never boot to them. It would either hang...

I was removing caps from my 512k floppy drive and removed this thing what I thought was a capacitor but it’s not. It’s damaged now and I have no idea what it is or if there are replacements or if I just have to buy a new floppy drive. Any help appreciated.

I’ve got a Macintosh HD20 that doesn’t work, anytime I try to initialize the drive it fails, so I’m assuming the drive is bad. I’m pretty sure they use some special kind of hard drives but not sure exactly what. Anyone know what they use and if there are any alternatives to use or adapters...

Hi, I recently resur my G5 by reflowing the U3 memory controller on the logic board and it’s working again. I tried calibrating the fans using ASD 2.5.7 on my June 2004 G5. But I get errors for both cpus about this inlet temperature sensor which I’m not sure what that is. I had the plastic door...

I've been trying to repair my G4 MDD power supply for awhile now and not sure what exactly to replace on it. I've replaced all the caps except for the 3 big 450v ones. I know that the mosfets also should probably be replaced (presumably the ones on the heat sinks). Not sure if anything else...

I’ve got this iisi that displays a yellow screen on boot up with no chime or anything else. I’ve recapped the power supply and the logic board. I’ve removed all the ram and this is the board with the rom on the board. I’m not sure where to go from here. Any ideas?