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I am restoring a Mac 512K with a 512K Dove MacSnap 5.0 RAM Upgrade card + SCSI. This upgrade card brings the Mac RAM to 1MB. But I've seen some other Dove MacSnap RAM Upgrade cards that contain 1MB or 2MB of RAM. Is it possible to upgrade my upgrade card to 1MB or even 2MB? Also, one of the...

I pulled out my trusty Apple Extended Keyboard II to test some vintage Macs. It has been stored for couple of years now. Sadly I discovered that it doesn't work, just all 3 LEDs are on, and also the connected ADB mouse does also not function. So any info on what I should do next? Could there be...

Hey, In the attic I found a forgotten Mac that I stored there almost 20 years ago - back in 2008 or so. As the title says it is a PM G4 Sawtooth (AGP graphics). I would like to get it going. The case is in really nice condition, with no yellowing going on, but it has issues: 1. Power supply...

Any possible way to fix this issue with my PowerBook G4 battery? It holds charge, but the capacity is reported wrong, therefore the gauge percentage is not correct. I tried charging and discharging it few times with no improvement. Thanks!

Hello everyone, I just (almost) finished restoring Performa 630 which I got for €25 few years ago. Previous owner presumably found it in some abandoned building, along with a painted black Mac 512K which I also got. He cleaned it a bit and removed the leaky battery, but didn't have the right...

I am interested if anyone has managed to obtain the schematics (or perhaps a boardview) for G3 series of PowerBooks. I repaired lots of MacBooks and other Apple and non-Apple hardware in the last 10 years or so, and I do have every schematic for every Apple laptop from the PowerBook G4 on. As...

My PowerBook 160 sadly developed a vinegar syndrome after being stored for bit more than 2 years. Other similar aged PowerBooks in my collection are still fine, also being stored for same amount. I opened it and found out that the panel is Sharp LM64P58. I saw few videos about replacing the...

Hey I just got this 512K in somewhat sorry shape. Has some screen burn in, the case is super yellowed. And of course, the machine doesn't work - fuse is missing, this was told to me by a previous owner who examined it before. But it has SCSI and RAM upgrades (some snap on thing) But the main...

Hey, I am wondering what should I do in terms of preventative maintenance on a PowerBook 165c? I heard that screen should be recapped. I had it done on few before - like 160 and 140, but that ones were clearly defective (contrast all over the place, etc.). And caps were leaking all over the PCB...

Hi, I had a 512K in the attic for the last 10 years. It has a bad analog board and the mainboard was upgraded to some point. The machine also had some Hyperdrive parts there (like the PSU, fan and interface board that plugs over the 68000). Also the mainboard displayed a sad mac and didn't work...

I got this quite nice looking PB 190 few months ago. The seller did say it would probably need a recap of the LCD as the image is changing contrast all the time and is very temperature dependant. I was sceptical about this as those machines were supposed to have "good" caps in them and not the...

Hi, I just fixed one Lisa 2/5 that had screen jumping vertically. The jumping became worse as the machine warmed up. Main culprits were three electrolytic capacitors on the analog board that have leaked and corroded the surrounding areas. These are three 16V 10uF capacitors that were purple in...

I just repaired (recapped and cleaned the PCB) a PowerBook 170 Power Adapter M5140Z (APS-20E). Needed all of the brown ELNA capacitor replaced. 47uF 50V, 82uF 16V, 180uF 16V and 1200uF 16V were all leaking in the bottom. I was lucky as the corrosion around the caps was still minimal, so I...

I recently acquired a near mint condition PB G4 A1052 17 inch. The computer was from a friend of mine and it ran fine until about 4 years ago, then it started to show problems with GPU, artefacts, random lines and so. Not long after, it completely died. I know for sure that the LCD was good and...

I am repairing a iBook G3 Clamshell that has blown fuse on the charger board (F1). This causes the known good battery not to charge, despite the orange light on the charger. Can anyone suggest what is the original specification of the fuse? It has "5" written on it. Considering my electronic...

I got myself an unknown condition iBook G3 Clamshell. It came without the power supply, but it powered on flawlessly with my PSU. It booted to 10.2.8 in a matter of minutes. However, the keyboard was almost completely dead, only few keys were functioning. Removing it revealed that the laptop...

I recently got a nice condition Macintosh Plus with one major problem: the previous owner got it from USA and therefore it was a 117V unit. Which he plugged into the 230V mains that we have here. He said that the machine even started up and ran for a few seconds, then it died with some smoke...

Anyone knows of a suitable aftermarket AC charger to use with an PB1xx series of laptops? I guess that 7.5V 3.0A regulated PSU should be okay. I own 5 of these PBs, but I only have one charger for them. Used ones are prohibitively expensive and almost unavailable in the Europe. Thanks

I just acquired a PB 140 in a very good condition. It needed some stuff to be done (recap the LCD screen, lubricate head bearing in the HDD as the HD wasn't recognised, etc.). The funny thing is, I got it from Germany, the keyboard is US and the system is Japanese (System J-6.0.7.1). However...

I powered my trusty old iMac G3 Rev A after about 2 years. It powered right on, and it stayed there, until the sleep timer kicked in and machine went to sleep. When I wanted it to wake up, it did wakeup, sorta, but the screen was blank with the green light on. When I turned it off via a power on...