The video output is an issue with the Processor, I did test with a good I/O Board. The machine won't power on without a good I/O i thought??? I repair power supplies for the Lisa,…

Unfortunately, I don't have any spare I/O boards (I presume you mean the main I/O daughter card - not a parallel card for the expansion slots). The video out problem might just be…

Thanks for all the responses! I have one 2400c completely disassembled, and have found one bad fuse out of like 11. I'll be looking into replacing that. Its the fuse right by the H…

Now if only someone would come forward with a schematic for the power board, I would be really happy, as I could fix the dead ones I have without having to totally replace them. …

One of mine did the deathbead GLOD thing, where it would work sometimes and then degrade, before finally not cooperating at all. A new power board cured that problem. I figured tha…

Generally when I get something with no docs I put them on the shelf and look around on the web. Sometimes while looking for something else I find a thread that leads me to the know…

From experience, info on the 2400 is tantalising but, sadly, dying out. My own machine arrived totally intact (complete with original box, all cables etc. - totally pristine if tru…

Hi all, I've posted before about my two PowerBook 2400c units that don't work. They both have a different problem. I've had little luck in trying to get troubleshooting tips from …

Thanks to everyone for their comments and suggestions. This is what I've found: Machine ID: 406 ROM Version: $77D.45F6 MacOS ROM file Version: 8.4 The ROM is apparently the sa…

I'm partially there. Fortunately the donor machine was basically the case and the mainboard so it was pretty easy to remove. On the customer's original computer I have the heat s…

To save you from endless speculation about the ROM version currently in your Mac, and which ROM that might be, you could go to Production information at the foot of the System Prof…

Thanks for all the responses. [] ]'> The ROM on my B&W G3 CD is 1.4, and on the 'retail' CD it is 1.6. Unfortunately neither one will boot my G4. When running th…

[] ]'> Try install another Mac OS 8.6 with MacOnMac on the SawTooth, and put the 2.5.1 ROM in the new installed system afterwards... [] ]'> And... can I have the.…

I see there was a firmware update listed for the sawtooth G4s in 2001. It says it is for improved compatibility with OS X. I'll need to learn how to use Open Firmware to see if tha…

Hey Guys, Im looking for Lisa / Mac Portable Parts in Australia, I am currently participating in the Retro Challenge, but I'm now in a predicament! The Lisa 2 I have, which is an…

Ugh. A mobo swap in those is a long process. It is fortunately rather straight forward, and less blood drawing than an 8500. I wish you luck and much patience. TBird

A customer owns a Dual 1.8ghz PowerMac G5 that has issues. He also bought a stripped G5 containing a working mainboard. I get to take the non-functional mainboard from the origin…

Looks like liquid may have spilled onto the board at one time. I'd also replace that 5 pin IC next to that burned out IC, along with that capacitor between them. I small soldering …

Well, an update, though not one I'm happy about. I think I may have found the problem. I found a section of the logic board towards the very front, near the front latch, that loo…

It's possible it has a grounding problem because my iBook clamshell did not have the ground wire screwed into the metal shield and I could not get a charge or use the power adapter…

The iBook G4 may have been (relatively) free of the bad GPU issue, but it still had a fairly common issue: cracked solder joints, typically in the power section. There are some web…

The iBook G4 may have been (relatively) free of the bad GPU issue, but it still had a fairly common issue: cracked solder joints, typically in the power section. There are some web…

I've got an iBook G4 (different iBook than the display plagued one) that has some sort of electrical gremlin going on. It's experiencing a few odd symptoms that have pointed to a …

I'd go with a firmware update. Its unlikely that OS X would have anything to do with it - despite the fact that I primarily run my iMac under Mac OS X, it will quite happily boot o…

You might be able to instal directly in Open Firmware.