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    Jump Start Macintosh IIsi PSU

    Hi everyone, I just recapped the MB and PSU from a IIsi. With the PSU out of the computer, I have a nice 4,96V from the 5V stand by line. How can I start the PSU without putting it in the computer. Which pin of the 10 pin connectors tells the PSU to start ? I want to do this before putting the...
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    Apple II in wooden box / identifying cards

    Hi, I had for a long time in my attic an Apple II inside a wooden box. I don't know what's was the story of this computer. The box is paint and looks nicely made. They are several card inside. I can identify the Disk// interface, an Z80 card, also a 80 column card ?, an another card without...
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    I want to understand - Macintosh Portable error code

    Hi, I just bought and recap (+ultrasonic cleaning, drying) a non-backlit Macintosh Portable and get an error code when starting. I got the chime, but the a continuous beep and the sad mac's chime. Error code are : 00000003 / 0000FF00 I tried to understand what are those code but cannot...
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    Performa/LC/Quadra 630 / 6200

    Hi, I have a set of 3 macintosh based on the 630 form factor case (including an 6200). - Does they share the same internal architecture (PSU, CD Drive, HD, ...). In other words, can I swap boards across them without care ? - 1 PSU seems dead I tried the 3 boards and no one starts the...
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    Macintosh II without capacitors to replace ?

    Hi everybody,  I'm currently restoring a few Mac II I have. One of them is working fine (when jump-started). I can't find any tantalum or radial electrolytic capacitors (those who generally leaks), but found only axial one (less subject to leaking).  What would you recommend for putting them...
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    Memory expansion on Macintosh Classic

    Hi,  I just recap a Macintosh Classic I bought (didn't try before recapping) The motherboard is in good condition before (and after) recapping.  When memory expansion module is installed, I got a 00000005 sad mac error code. Without the expansion module, the unit boot fine (but can't finish...
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    SE/30 worth repairing ?

    Hi,  I recently acquired a SE/30 with just a white horizontal line on the screen.  When opening, I found the Maxwell battery has leak (usual). Is it worth repairing it ? Do you think it's possible to make it alive again ? I will clean the board and post pictures when it's clean. 
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    Macintosh II and II(f)x

    Hi everybody,  During these "forced" holidays, I decide to dig into my Mac collection, especially Mac Mac II. I have 2 Mac II, the first one appears to be original. It won't boot but I doubt the battery are completely dead and it needs battery to start. Does it need both batteries to start or...
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    TAM with white screen

    Hi,  I just tried to reboot my 20th anniversary macintosh this sunday. It seems to boot right, but the screen stays white. I'm pretty sure it boots fine because it reacts to volume switch, birthness and power off. The last time it booted was less than 1 years ago. No changes (except powering...
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    Strange card on a mac plus

    Hi,  I have a mac plus with an extra db9 cable going through the security hole and don't know what is it. The computer was heavier than the others. As I have a sad mac icon at startup, I decide to open the computer to have a look inside. The computer is very full of extra component. It...
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    Preventive recap Mac 128k & 512k

    Hi,  Following my "classic" and "IIci" failure due to capacitor and battery leak, I went to check my 128k & 512k. As they powers as usual, with sound, bright and crisp screen, is it necessary or recommended to change the caps ? Are they subject to leak as classic and SE30's ?  Does analog...
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    Resurrecting IIci

    Hi, I have a lot of old Mac computer here at home, I usually remove the 1/2 AA battery before putting them on storage, but It seems that I forgot this one.  It looks in very bad shape. I start cleaning as much as I can and it start to look better. Can you guys help me resurrecting this computer...
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    PowerPC 604 swap

    Hi,  As part of resurrecting an old PM8500, can I use the processor card from a 8600/9600 series ? I have one that can act as a donor but it's a 350 Mhz processor. I know the internal bus speed won't go faster, but I wonder if the computer will/must be able to boot with that processor card. ...
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    PM 8500 no boot

    Hi,  I've been reading passively this forum for years. But now, I really need to exchange knowledge regarding one of my problem.  I have a PM8500 (WS8550 to be exact), I forgot to remove the battery and that ends with a little corrosion on the motherboard. No startup sound, no video, disks are...
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