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Type: Posts; User: KenEG

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  1. Replies
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    I would try sealing the computer in a large...

    I would try sealing the computer in a large plastic bag with a few silica gel bags. If the issue is moisture, that should cure it.
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    2,996

    I realize it has been a while since my last...

    I realize it has been a while since my last update. I got the battery so it now holds the correct date, time, and control panel settings. The eject mechanism of the disk drive quit...broken gear. ...
  3. It could simply be a mismatch between the monitor...

    It could simply be a mismatch between the monitor and graphics mode. If you have another monitor, I would try that first. It could also be the video cable either picking up interference from...
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    Could also be for a Compact Mac like the Mac Plus.

    Could also be for a Compact Mac like the Mac Plus.
  5. First thing would be to replace the capacitors. ...

    First thing would be to replace the capacitors. They often short out when they get old and draw the voltages down too low for the drive to work. Next would be to swap chips between the working...
  6. Just a thought, but maybe there is a problem with...

    Just a thought, but maybe there is a problem with the interrupt controller or supporting circuitry? You might try another card like a sound card and use interrupts 3 and 4 to see if they work. I'm...
  7. Since the onboard serial port also doesn't work,...

    Since the onboard serial port also doesn't work, maybe you have a motherboard problem?
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    A lot of laptop power receptacles go bad or the...

    A lot of laptop power receptacles go bad or the solder connections crack due to the repeated plugging and unplugging. I would start there.
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    I just looked at the SDS and agree that it...

    I just looked at the SDS and agree that it shouldn't hurt anything. It may leave a residue that could attract dust, your IPA wash should remove that.
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    You can try “canned air” when the errors occur. ...

    You can try “canned air” when the errors occur. Spray it on each chip in the hot area. If the error goes away, you have found the bad chip.
  11. I just restored a Macintosh Plus. Finding...

    I just restored a Macintosh Plus. Finding affordable keyboard and mouse was a real challenge and cost me more than the computer. I think there would be more demand for converters that let you use...
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    Got a keyboard and mouse today. Soldered in RIFA...

    Got a keyboard and mouse today. Soldered in RIFA capacitor, adjusted the voltage, height, width and cutoff. Re-assembled the computer and hooked up the mouse and keyboard. Glad to report...
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    I often plug in my laptop when it is on and the...

    I often plug in my laptop when it is on and the battery gets low. I have done it both ways and don't think it makes a difference on modern equipment. I would think the battery would tend to even...
  14. You might try installing Win98 on the computer. ...

    You might try installing Win98 on the computer. If that works and has the proper drivers, you could copy the system files to other media and then copy them back after re-imaging the drive. This...
  15. I had a similar issue with my 1902A monitor when...

    I had a similar issue with my 1902A monitor when I pulled it rom storage. At least on the 1902A, I needed a signal coming in for it to switch on. I had that, but the slide switches to choose modes...
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    Got a few minutes to work on this tonight. I...

    Got a few minutes to work on this tonight. I removed the motherboard. Nice surprise, it has 4 MB of RAM. Removed the floppy drive and then the eject motor from it. Another nice surprise. The...
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    The errors after a while and heat suggest...

    The errors after a while and heat suggest possible bad ram chips. Check if any of 5hem are hotter than the rest. If so, they are most likely bad. The other possibility would be bad capacitors...
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    I read about problems with the M0100 mice and...

    I read about problems with the M0100 mice and then tried bending the wire at the strain relief while clicking. If I bend way left, it woks sometimes. Contacted eBay seller because it was describes...
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    Finally received the replacement horizontal...

    Finally received the replacement horizontal deflection capacitor tonight. Soldered it in during a break in mowing. Turned it on and got what I think is a normal screen. Got excited and tried my...
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    LOL. I didn’t notice that, but it doesn’t matter...

    LOL. I didn’t notice that, but it doesn’t matter to me.
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    To be clear, these are for the RIFA cap.

    To be clear, these are for the RIFA cap.
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    I got the caps pictured below from Digi-key...

    I got the caps pictured below from Digi-key today. My other cap is still in California. Are these caps OK to use?

    52905
    52906
    52904
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    Thanks to both of you. I am just going to wait...

    Thanks to both of you. I am just going to wait for the part I have ordered, but am saving the information you provided for future projects.
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    Are polymer caps bipolar? I get very confused...

    Are polymer caps bipolar? I get very confused when I search Digi-key or Mouser.
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    Thanks, that is why I asked.

    Thanks, that is why I asked.
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