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Here’s what It’s doing at the moment. Theres no change if the top cover micro switch is activated.

I programmed a ROM, popped it in and put everything back together. It didn't blow up which is nice, but the head is just clicking and lights are flashing on and off. Anyone know what this means? I'm still suspicious that the ROM dump may be corrupt. @Mac84 Would you be willing to dump one of yours?

Thanks @retr01! The 28-pin ROM needed 33 trace repairs. All but two needed 40 AWG wire to make space for the socket pins. It was fiddly work but kind of fun to do. I got the replacement ROM and ROM eraser. The eraser I ordered has a euro plug which is weird. It came via Amazon next day...

This is going to require trace repair for almost every ROM pin.

@retr01 no helpful markings that I see.

There was a lot of crust on the ROM pins! I used a USB rotary tool to scrape away the crud down to the shiny metal. A couple more pins broke off in the process. I soldered some leads on and by some miracle was able to get it to dump. the ROM dump is attached here, but not sure yet if it can be...

I was having a lot of issues with glare and sharpness. I recall @Branchus saying he had similar issues but just had to keep fussing with it until it looked good. No amount of fussing with mine could get it looking as good as his. That might have come down to the reduction lens. Consider getting...

Well, this isn't good. It looks like the cap managed to leak all over the ROM. I managed to get it out of the socket while only breaking two pins. I'm hoping it'll work well enough to dump. Fortunately replacements are cheap.

I've had an Apple Thermal Transfer printer on the shelf waiting for repair for a while and decided to dive into it. It powered up but then something started smoking. Uhoh! It looks like at least one electrolytic capacitor (C27) severely leaked and may have damaged a nearby ROM. Before digging...

I also have the Amscope trinocular on the boom stand. I bought it during a Black Friday sale of there's a couple of years ago. You may want to considering waiting a bit to see if they do that again. I have the HC210 camera and really do not like it, but am not sure which options would be much...

Just a little follow up on this. I did end up recapping the AC adapter, but it was still dead and I wasn't sure what was wrong. I ended up getting a generic adapter with the same specs that worked fine. Here's the display running..

Is there a resource for common failure points and adjustment of the tray loader drives? I have one that isn't successfully reading discs. I assume the laser power pot needs adjusting and/or the drive needs a recap. It's pretty fiddly so was hoping to find a teardown and repair guide before...

Yeah it works. I might have hit those pins when removing the sticker on top of the IC.

Neat idea. @eric have you considered that as a feature before?

With asking prices for these adapters being kind of absurd, I figured it might be helpful to consider reverse engineering one. It seems like a couple of special purpose ICs, a ROM and a surprising amount of passives. I don't think I'm up for the challenge of reverse engineering it, but figured...

I had a similar issue post recap. esc, 4, 5, 6 and + would short the reset line when pressed. It turns out I shorted a trace right next to C24+ which was the issue. Maybe you did something similar near C15 or C26? I'd check that area first or by C116/C14 if you have the keyboard on the right...

Chassis, without a resistor. I'm still chasing down the problem. I found one open capacitor so far at C39 but replacing it didn't change the symptom.

I found a pad for C1 had come loose from all of the handling of the board. I reattached it and now get a chime, no video and then lose voltage (flup flup flup noises). The rectifier at CR20 seems okay, so maybe I have a bad cap somewhere else now. It's weird that the symptom keeps changing.

Wouldn’t -12V just be needed for audio and maybe serial? I’d be curious to know if it’s required for basic operation.

Update: Replacing Q7 changed the symptom to a vertical line (collapsed horizontal deflection). Q6 tested okay. Will test Q3 next.