Notice, he's wisely replaced them with sockets. But I have a stack of failed 128K boards all with Apple-branded, Sad Mac RAM error codes in need of replacement. Yet I have never se…

excessive shorted turns in the primary of the flyback will cause the flyback, and the horizontal output transistor to run excessively hot. Keep this in mind as well.... loose cores…

I have one that fizzes Nicola Tesla stylee (big blue arcs of HV) the sparks come from the triper (next to where the red HT cable is attached) to the scan coil cables, looks great i…

I know this thread is now somewhat old. I have an Atari ST 1040 with Sequencer One Plus (now free) and that is the tightest to date. It has two issue that get me, one is it sends …

I had success repairing two of my mac portables with Sad Macs after lengthy board repairs. As for opening the batteries, its been quite some time since I opened one, I used a box …

I had two dead Portable batteries. I wanted to re-cell them, so I attempted opening one with a screwdriver, but that totally messed up and and bent the plastic. I have one remainin…

No, they don't all have working batteries.. yet. I have a whole stack of macs, I have been collecting them for years, due to the fact many that I bought had varying problems with …

If you installed any backwards, that is exactly the problem. You have a lot of Portables. What do you do with them all? Do they all have batteries that work?

Actually i think i know why.. It seems I installed the all the wrong way around... ARG! Why is the painted stripe on SMD caps negative, but positive on tantalums! GO FIGURE!@ WO…

Hi Everyone I've just rebuilt about 12 of my Mac Portable's however I had one issue, when I replaced my some of my portables SMD caps with Tantalums, well 3 of them caught fire! …

Yes, trag's caps are great. I need to get some more from him. I am missing one capacitor in order to complete the replacement on my SE/30. I am also missing one capacitor in order …

Thanks to Trag whose handy capacitor kits make it easy to get into fixing up these boards. If it weren't for him, my portables would still be sitting dead in the closet. :beige: …

I finished capacitor replacement a few nights ago. Here are some pictures.

That's a very good tip. Though it does require constructing an extra long cable between the logic board and analogue board. It also doesn't help identify more than one bad chip at …

I remember a trick that I tried. With the board out of the case, press a memory chip over the chips on the board one at a time Make sure that the pins only touch the correspondin…

Here's a picture that at least highlights, if not proves my point. An original mid-prodcution 128K logicboard with Apple branded RAM chips. Two of them had to be replaced last year…

Just an update, I used the 8.6 (international) G4 disc on a SawTooth, no issues. I did have some problems previously on a drive that had been formatted by a newer Drive Setup (9.2…

you can also use a solder saturated wick to hot mop the area, its a bit less wasteful and abit less time consuming although your going to have to clean up a ton o flux

I finally got my tools in order and took the time to do some work on this smoking hot babe today. First off, I removed all the nasty caps with my new diagonal cutters. Some of the…

Got the Mac OS ROM file, been really busy at work (where the Sawtooth project is underway), so I dropped it into a 1st gen slot-loading iMac DV at home (also a special-case machine…

I still have the 2.5.1 ROM if anyone needs it - just send me a PM.

Desperately in search of Mac OS ROM 2.5.1 to get 8.6 running on a PowerMac G4 SawTooth. I have scoured the abandonware archives and used my status as Apple Certified tech to check…

I have them, and a few more I picked up along the way. No, I haven't uploaded them yet.

Now this is an odd find: On offer is a VINTAGE COLLECTABLE - BRAND NEW Apple PowerBook {x00} Series Video Service Course as part of the Apple Service Training Courses. This b…

Bargain! Click to expand... Of course, that is for *without* the coprocessor.