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  1. captjon320

    Mac 128k analog board recap, old C6 soldered with resistor

    Hello all, I'm recapping three Mac 128k analog boards. I took the easy path and ordered the cap kits from Console 5. I am on the 2nd board and noticed that the old C6 (22uF 50V) cap has a resistor attached to it. The other two boards did not have the resistor attached and the old capacitor...
  2. captjon320

    Sad Mac 04919A

    Hello all, I have two 128k boards that I’m working on. The first will bong on startup with SadMac 04919A. 04 = Memory Test-Mod3 test and identifies a bad chip or chips. A sub code of 000A sub code meaning is Line 1111 (I don’t understand what that means). Also, I don’t understand the...
  3. captjon320

    Mac IIfx video card display lines

    Hello all, I have a Mac IIfx that has been recapped with an Apple 630-4222/630-4230 high resolution display video card installed that has also been recapped. The computer runs fine. I am using an apple color plus 14” display (M1787) and getting vertical lines on the screen. I know the...
  4. captjon320

    Mac IIci replacement diode

    Recapping another IIci board and noticed that one of the small black diodes is missing from Q3. I assume it is the same diode that is on D3, D4, D5? I need to purchase a replacement, but haven’t figured out what to purchase. Any help would be appreciated. I have attached some pictures for...
  5. captjon320

    IIci clicks on startup | good PSU

    I have had a project IIci for quite some time. I recapped it and ran it through the ultrasonic cleaner; the board looks very clean. When I go to start it, I simply get a click; either from the soft start on the keyboard or the power button. I figured it was a bad PSU, since they seem to go...
  6. captjon320

    Color Classic Board help

    I had a friend drop off a color classic board with some really bad cap leakage. I am trying to save the board so I took the caps off and everything looks okay except down at c9 and c10. I can put solder mask over the exposed traces at c9 and the pad that was gone at c10 is the negative side...
  7. captjon320

    Mac IIsi PSU inductor value

    Hello all, I accidentally removed the L221 inductor from a Mac IIsi PSU when I was removing caps and don’t know what value it was. If anyone can point me in the correct direction, it would be much appreciated. I have circled it on the photo for reference.
  8. captjon320

    SE 30 recap with issues

    Hello, I finished a couple of recaps of SE 30 boards. One is working and the other is showing me the posted picture on screen with a normal start up chime. The problem board has been run through the ultrasonic cleaner. I have swapped out the RAM with known working RAM from another board and...
  9. captjon320

    Clock not updating with good battery

    I just ran into something that I haven’t seen yet, any help would be appreciated. Mac SE FDHD, logic board had removable battery type.  Not the soldered battery.  Running 6.0.8 with a Blue SCSI hard drive. I replaced the battery, no corrosion visible.  Cleaned machine and rebooted.  Everything...
  10. captjon320

    Mac Classic recap; ding, no video

    I have a Mac Classic that I'm working on.  I've recapped the logic board, cleaned it up (with ipa) and placed it back in the machine.  I now get the "ding", which was missing previously, upon boot up.  However, prior to the recap I was looking at a checkerboard pattern screen; now I'm looking at...
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