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It does chime and it does boot into the OS as I can hear Mac OS make some noises

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...

Just read it now. I’m not familiar with the VIA chip but I’ll look for it when I get around to it tonight. What part of the board is it at?

Yeah Ive had it for a few years. When I initially got it, it was fine. I recapped it a bit later and it was still good. Then after awhile once the recapping was done it would only boot sometimes off the 7.5.3 hard drive, then stopped all together. It only works 100 percent of the time off system 6.

Yeah I can give that a go. I’ve also thought about using snooper. I can load both those onto a system 6 version and give both a try.

I recapped it long ago, all SMD and axiels. Also replaced the scsi chip and fixed bad traces around the scsi chip.

Ive tried a bunch of different known working scsi hard drives. stock ROM simm. I’ve tried different ram. I believe it fails to boot off syste 7 floppies as well, system 6 ones work iirc. I recently just got some blue scsi so it will be easier to test now.

Well system 6 boots perfectly fine, and system 7 will either hang on welcome to this macintosh or throw a system bomb error. I was told by someone else system 6 doesn’t require the RTC to work but system 7 does, so that’s why o believe the RTC circuit is bad.

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...

Managed to get everything unstuck. Used lots of WD-40 and let it soak for a couple of days.

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...

I put one in and it’s now running!

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 haven’t been able to boot from anything in awhile. I haven’t tried external scsi or floppy yet. I’ve recapped it already

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...

I left a sensor unplugged so now it calibrates fine

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...

Before the power LED would turn on for a second and the fans and then turn off. After the recap it does nothing now. I checked some of the mosfets and all the pins are shorted so that’s probably why.