ijnfuso's latest activity
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ijnfuso replied to the thread Macintosh Plus analog board issue.Here I am, a bit late (I got sick) but I bring news. I have reflowed every cold/cracked joint on the board and every connector joint... -
ijnfuso replied to the thread Macintosh Plus analog board issue.Thanks for the tip... I'll do that tomorrow and update the thread after I reflow every bad joint (it's 1:30 am and I'm very tired)
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ijnfuso replied to the thread Macintosh Plus analog board issue.I just checked the continuity, and both of the switches work as intended, nothing when the switch is not pressed. Well last time this...
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ijnfuso replied to the thread Macintosh Plus analog board issue.I already tried lowering the voltage and it did not change anything. I also reseated the rom, the ram, tried putting in a battery, but I...
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ijnfuso replied to the thread Macintosh Plus analog board issue.Welp, the other day I got a new analog board. Recapped the three RIFAs, the seller said it was taken from a working mac, and guess what...
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ijnfuso replied to the thread Macintosh Plus analog board issue.I checked online and found at This github page that Q12 can be a "BR103 reversed" (?) Now I don't know if that's possible or how to...
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ijnfuso replied to the thread Macintosh Plus analog board issue.Searching online I read that Q12 doesn't have a direct replacement as it has been discontinued, and, can't find anything else... what...
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ijnfuso replied to the thread Macintosh Plus analog board issue.Well, I was checking voltages between C35 and C39, I am getting around 300/301DC.... while I was doing that I heard a bang, and, it was...
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ijnfuso replied to the thread Macintosh Plus analog board issue.Unfortunately, I have already tested every cable… the analog board is not even getting 12v or 5v to the power rail, and no high voltage...
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ijnfuso replied to the thread Macintosh Plus analog board issue.Right- I am getting around 230V after the thermistor with switch on.... what else could I test
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ijnfuso replied to the thread Macintosh Plus analog board issue.Well, I’ve replaced what is essentially everything on the AC part… And, it doesnt work. Same issue, no power to mainboard, no noises...
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ijnfuso replied to the thread Macintosh Plus analog board issue.Thank you for the schematics. Really needed those!! I did indeed spend some time testing everything in the AC section. CR31 is indeed...
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ijnfuso replied to the thread Macintosh Plus analog board issue.Thank you for all the advice. By fixing the AC section which parts do you suggest me to concentrate more?
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ijnfuso replied to the thread Macintosh Plus analog board issue.I checked the bridge, and it seems that CR25 reads 0,001V in both directions... certainly have to change that. Good to know this...
