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| Classic ii monitor flicker |
Posted by: itdude99 on 2018-02-23 14:54:41
Howdy all. I am trying to revive this Mac. Things I have done so far. Removed ROMs and memory. Put in dishwasher. Put everything back. Same issue. Please see video for flickering issue.
I don’t know if the logic board works. Can I place the classic ii logic board into the case/monitor of an SE/30? I am not going to swap analogue board. I am afraid to touch all that CRR stuff.
Thanks in advance!
Jim
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Posted by: techknight on 2018-02-23 15:58:24
That is the power supply cycling over and over again. Probably caps.
Both the analog board and logic board needs cleaned and fully recapped before you can even begin troubleshooting.
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Posted by: itdude99 on 2018-02-23 17:36:35
Thanks techknight, I found the wiki.86kmla.org page regarding the capacitors for the logic board. Is there a similar placer to find the capacitors for the analog board? Also any advice on where to buy or what else I should be reading? This is my first attempt at this type of repair. Also do you think I can try out the Classic II logic board in a working SE or SE/30 case?
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Posted by: Jinnai on 2018-02-23 17:43:11
yeah it is caps. I had good results after just washing it under running water (tried spraying it which didn't work) and drying totally. replacing caps you get them from mouser or digikey, but when I did it I lifted pads and had to remake traces with thin wire, they're a bit difficult to get off.
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Posted by: bibilit on 2018-02-26 00:05:32
Analog board capacitors:
http://www.maccaps.com/MacCaps/Capacitor_Reference/Entries/1990/10/15_Macintosh_Classic_Analog_Board.html
You can swap the Logic board with a Classic II, not with any other model.
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