Marconelly's latest activity

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    Marconelly replied to the thread Color Classic VGA Woes.
    Not sure if I'm using the right term, but what I mean by sub-brightness is the brightness of a pure black color. Ideally, that should be...
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    Marconelly posted the thread Mac LC 575 Analog Board Recap Guide Photos in Macintosh LC & Performa.
    I needed to recap my LC 575 analog board, and couldn't find a guide for it, so I decided to make one, similar looking to what Branchus...
    • LC575_AB_Values.jpg
    • LC575_AB_Blank.jpg
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    Marconelly replied to the thread Color Classic VGA Woes.
    Looks like the last piece of the puzzle to get this board fully operational was to increase the picture adjustment R/G/B pots at the...
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    Marconelly replied to the thread SE/30 with abnormal screen.
    Before you do anything else, I'd say just clean all the IC pins with alcohol, using a soft toothbrush. You can do that fairly quickly...
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    Marconelly replied to the thread Color Classic VGA Woes.
    That's where it is, yes. I have found that it leads to J23 jumper lead on the upper side, and measured between there and the metal cage...
    • J23.jpg
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    Marconelly replied to the thread SE/30 with abnormal screen.
    If the capacitors or the battery on the logic board have leaked, make sure to check if any traces need repairing. Make sure to also...
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    Marconelly replied to the thread iMac G3 speaker replacement success.
    I've ordered these, so I'll see how it goes. They were just $5, so I don't mind even if they end up not working...
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    Marconelly replied to the thread Color Classic VGA Woes.
    I found out where TP1 is and what it's connected to, so I can measure it from the top of the board. I'm assuming I would measure between...
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    Marconelly replied to the thread iMac G3 speaker replacement success.
    Looks like these speakers are no longer available on Aliexpress. @mac27 do you have any other suggestion of what to buy? Someone on...
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    Marconelly replied to the thread Color Classic VGA Woes.
    Right now, I've adjusted the PP7 pot, and managed to get the low voltage to be 4.998 / 5.004 V and 11.8. Up from 4.8V / 11.5V - I can...
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    Marconelly replied to the thread Color Classic VGA Woes.
    The things is, it's really haphazard. Today again I've been able to use it for an entire hour, and it still keeps working just fine...
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    Marconelly replied to the thread Color Classic VGA Woes.
    I just can't catch a break with this. After working perfectly for whole three days - and I used it a few hours each day - today the...
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    Marconelly replied to the thread Color Classic VGA Woes.
    For a sanity check, today I've put back my preferred Panasonic capacitors back on the board. Then I've thoroughly cleaned the pins on...
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    Marconelly replied to the thread Color Classic VGA Woes.
    More things happened today. First, I've replaced the 2nd optoisolator, but as I suspected, the voltages remained the same, and in...
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