techknight

Yep we got a good read! Looks like it was on CompuServe as late as 1998. Crazy for an LC.

Wow... shows you how bulletproof abusing these drives actually are. I am impressed magic eraser worked lol. DONT TRY THIS AT HOME FOLKS!!! This is in the name of science only.

Lithium battery fumes got inside the HDD and oxidized the platter. I actually was able to clean this off with a magic eraser AND IT READS... Plenty of bad sectors, but i am getting an image!

Battery bomb. People leave the lithium batteries in there, and they eventually go off and do this.

Some of those early LCs have that, and I have no idea why. the later LCs do not.

Lc number 2 is just as bad

Now I need to look through this stack of LC fun. Not a great start though

Yet another macintosh portable repaired

The only thing that can happen is everything Arduino get forked off into a new project up until broadcom took it. Since it's all gpld code

Who coulda seen that coming.... 🙄

You have to in order to free these drives, the bearings seize.

💀

Triage complete on the system source machines. Probably will save a couple but the rest will be parted out

No archeology going to be happening with this one 😬

Yeah it was stopping speedstor or anything else from running. also none of the files were infected, only the bootsector. I had to use fdisk and kill the partition and reboot the machine before speedstor would even run.

this is one for @danooct1.bsky.social

omg it has a VIRUS! It killed my diskette so I shoved it in my XP rig to re-do it and thats why it died

I coaxed the original JVC HDD back to life on this Zenith. This is one out of like 10 ive seen work...

I cleaned that mess up and holy crap it actually worked... It helps when the bus is not all shorted together

Actually, I found the real problem. Someone messed up hardcore

Does anyone have a zenith parts machine I can get? The motherboard is dead in this one and I'd really like to see it run. Code execution is seemingly random, suspecting a bad gate array

Lastly the yoke/flyback tuning can simply be off, it will cause ripple distortion, and actually will result into full-on foldover at the ripples if its way out, especially if the core gap on the flyback gets messed with.

So, some film caps can actually get "lossy" meaning they lose efficiency with time as in slowly go open. Not quite the same as leakage, but wont have a nice clean peak at their rated capacitance. Other cause could be intermod distortion making it to the cathode/grid of the CRT from boost filtering.

That's known as barkhausen lines. It's usually caused by ringing in the yoke due to a tuning mismatch. I would start checking the film capacitors off the horizontal output transistor for losses

The Packard Bell Spectria is back up and running. Wasn't just the caps, the LM1203 was also bad! First time encountering that one.

New fear unlocked: molten rubber plugs on capacitors

It's going to be one of those days again. Caps are leaking on the Packard Bell Spectria

Id have to pull the flyback back out and see, but I went off the part number on the side of the original transformer and it came up on the technotronic website. Same place as the supplier for the Molar Mac G3 flybacks.