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I've got another troubled Classic logic board. This one is in rough shape due to capacitor leakage before I got it. The whole board was cleaned, caps replaced and several spots needed overcoating to protect the board. It has worked for several years since then. Now It's giving me nothing than...

My Classic II suddenly stopped working. I hadn't used it for about 2 months and now upon power on it chimes but gives me a screen with thin vertical lines. It are not the caps: both analog and logic board are recapped. It's a logic board issue. The board is very clean and upon examination under...

My IIFx does power on, chimes, and even boots from a floppy or it’s hard drive. However I have no video output since all Nubus slots are dead. I have checked the power pins of the nubus slots and all are ok. The Apple Graphics card is known good, same for m1212 monitor, psu, Rom, ram since...

I've recently acquired a Color Classic with a recapped logic board ( tantalum caps ) but capacitors C1 and C2 had the wrong value, 47uf instead of 100uf and C1 was mounted with the wrong polarity as well. The logic board has no sound, not from it's internal speaker but that can be due to a...

I got a Rasterops 8/24 xli from a friend for free. The card works in my Mac IIFx however there's no memory in the four 30-pin slots. I suppose they are not for additonal VRAM given 30-pin fast page memory is slow. Where are these extra ram slots used for and what memory sizes does the card take...

I have several Mac SE PSU's where the voltages are far out of specs. All of them are recapped. When measuring on the logic board FDD connector I get +4.75v and +12,75v with the voltage pot wide open in the PSU. When testing the bare PSU with the analog board disconnected, I get +4.35 Volts...

I have a weird issue with 4 of my Powerbooks 160 and 165: I can't set the time and date anymore. As soon as I leave the date/time Control panel, the date/time immediately jumps around randomly. It may jump ahead half an hour, jump ahead a week, jump behind by 50 years, you name it. Each time...

I have a faulty optocoupler on a Mac Plus International analog board. Part is labeled H11AV. What's the best replacement ? An 4N35 optocoupler or VOR1121A6 solid state relay or something else ? 4N35: https://www.mouser.be/ProductDetail/Vishay-Semiconductors/4N35...

I've recelled several battery packs with 5x Panasonic HHR380A 4/3 Nimh Cells of 3800 Mah each. The issue I'm having with my PB140,145,145B,160 is that the powerbook stops charging after exactly 2 hours ( original 2A  recapped PSU calibrated at 7.5volts ) It's impossible that the batteries are...

I have a few powerbooks where the CCFL bulb isn't that bright anymore. When taking out the bulb, about 1/2 inch on both sides is black so I guess the bulb has had it's best time. The inverter board is fine, already recapped, also spare inverter boards give the same result. I usually buy my...

I'm a collector of Vintage 68K Macs. However I do need 1 machine that's more powerfull to browse the web and download StuffIt files and convert these to Bin or Hqx format for use on my 68K Macs. Before I used an Imac G3/400 DV but the flyback went south so I'm thinking to replace it with a Cube...

Who already recapped their pb500 charger ? Mine is giving a heavy smell of capacitor fluid when it's used so time to recap. Anyone with tips how to open the housing with the least possible damage so it can be glued back together ? Why on earth didn't Apple put any screws in most of their...

I've got an SE/30 logic board from a fellow collector for repair, actually recap only but they apparently send me the hopeless cases. It was dead, no video and no sound/chimes at power on, no simasimac too. I recapped the board and checked all the traces to the capacitor. No result: it does...

I recapped an SE/30 board yesteray but keep getting disk errors for the internal hard drive. I got the board dead, with SimaSimac, so impossibe to test before. Replaced all capacitors. The board posted but couldn't find the internal hard drive. However if I boot with a floppy disk, the hard...

I recently recapped 2x Color Classic logic boards. One of them works well and turns on immediately from the keyboard, with new Pram battery installed. The other one remains dead, tested in the same machine. I measure around 3.5 volts on the ADB ports, so it gets power from the Pram battery...

I'm planning to recap my IIGS monitor since it's over 20 years old. What would be the best capacitors to do the job. I'm used to recapping logic boards and PSU's, however it's my first monitor. Can i use general purpose radial electrolyte caps or are high frequency or high temperature versions...

I'm looking for a flyback for my Mac Color Classic. As with all Flybacks from Compact Macs, it's impossible to find xx( Does anyone know a source when they still have old stock or so from these ? Mine is from MTI, anyone tested a flyback from another model/manufacturer ?

I've got a few SE and SE/30 boards with broken clips on the Simm sockets. What would be the best option to remove these from the logic board without lifting traces or damaging the PCB ? I have a desoldering station but I don't think this will work as the Simm sockets come in pairs so there are...

I have something weird going on with a Mac Plus Analog board that I recapped. I regrettably didn't power it on before I recapped the board but last time, a few weeks ago, it was still working though. After replacing the capacitors, it didn't want to power on anymore. I triple checked the...

Hi, I've been looking for on Farnell, Digikey, Mouser, Google, Ebay,... you name it for a 620uf 400v snap-in capacitor ( D=40mm, H=42mm ). It's in the Sony PSU of the Mac SE series. I could find a 680uf, 400v snap-in but I don't know if it's a good idea to replace it with this value...