| IIe Platinum Weird Behavior [message #367926] |
Thu, 17 May 2018 20:50  |
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Originally posted by: Thomas Lake
I have a IIe Platinum which works fine and passes the self-test when there are no boards plugged in at all,(not even the 80 col/64K board) but when I plug in boards, different symptoms show up depending on which board I plug in. I plug a super serial board in slot 1 and garbage shows up on the screen and I can't seem to do anything. The 80 col board in the aux slot shows no display at all. A Mouse card in slot 4 shows normal text with some garbage but after 30 seconds or so the garbage goes away and I can use the system as usual. A DuoDisk card in slot 6 shows quickly moving dots and dashes and the system is unusable.
Does anyone have any ideas? The mouse card error makes me think it might be a bad power supply that takes time to supply the proper voltages but I have little experience in electronics so I'm open to suggestions.
Thanks for any help you might give!
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| Re: IIe Platinum Weird Behavior [message #367928 is a reply to message #367926] |
Thu, 17 May 2018 21:12  |
Steve Nickolas
Messages: 2036
Registered: October 2012
Karma: 0
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Senior Member |
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On Thu, 17 May 2018, Thomas Lake wrote:
> I have a IIe Platinum which works fine and passes the self-test when
> there are no boards plugged in at all,(not even the 80 col/64K board)
> but when I plug in boards, different symptoms show up depending on which
> board I plug in. I plug a super serial board in slot 1 and garbage shows
> up on the screen and I can't seem to do anything. The 80 col board in
> the aux slot shows no display at all. A Mouse card in slot 4 shows
> normal text with some garbage but after 30 seconds or so the garbage
> goes away and I can use the system as usual. A DuoDisk card in slot 6
> shows quickly moving dots and dashes and the system is unusable.
>
> Does anyone have any ideas? The mouse card error makes me think it might
> be a bad power supply that takes time to supply the proper voltages but
> I have little experience in electronics so I'm open to suggestions.
>
> Thanks for any help you might give!
>
From what little I understand, it does sound like a power supply issue.
-uso.
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| Re: IIe Platinum Weird Behavior [message #368204 is a reply to message #367926] |
Sun, 27 May 2018 18:50 |
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Originally posted by: Thomas Lake
On Thursday, May 17, 2018 at 8:50:26 PM UTC-4, Thomas Lake wrote:
> I have a IIe Platinum which works fine and passes the self-test when there are no boards plugged in at all,(not even the 80 col/64K board) but when I plug in boards, different symptoms show up depending on which board I plug in. I plug a super serial board in slot 1 and garbage shows up on the screen and I can't seem to do anything. The 80 col board in the aux slot shows no display at all. A Mouse card in slot 4 shows normal text with some garbage but after 30 seconds or so the garbage goes away and I can use the system as usual. A DuoDisk card in slot 6 shows quickly moving dots and dashes and the system is unusable.
>
> Does anyone have any ideas? The mouse card error makes me think it might be a bad power supply that takes time to supply the proper voltages but I have little experience in electronics so I'm open to suggestions.
>
> Thanks for any help you might give!
I replaced the power supply guts with the ReActiveMicro Universal PSU. It works fine now.
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