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68k, PPC, vintage PC’s, Space, Cars, modern and vintage electronics
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I am trying to figure out what these coils are, surely we could measure certain metrics of them and find a match for them
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PowerBook Duo 270c - burning power supply
Challenger 1983 replied to MikeatOSX's topic in 68k PowerBook
Is the 270c considered rare?, I swear I have seen more 270s than any other duo, but I guess all duos are rare anyway -
Definitely! it would be nice to have a video resource for recapping, I usually pick the smallest cap with the correct values when working with PowerBooks, and I make sure to clean and flux the board before applying the new caps, it works every time for me
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Arduino SCSI device - Work in Progress
Challenger 1983 replied to erichelgeson's topic in Peripherals
I am very excited for this, it seems like an affordable solution to failing SCSI drives -
I have a spare 280 board to recap next so I might try surface mounts all around with that board
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They actually fit amazingly, there's more room with them than the original caps which was surprising.
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So I managed to get both Duos recappedafter ordering all the parts from Digikey For anyone who is recapping a 2300c, The smaller capacitors are 33uf 35v And here is the patient after surgery
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PB Duo 2300c and 270c Capacitor list
Challenger 1983 replied to Challenger 1983's topic in PPC PowerBook & iBook
I think that is way way too high, however when I have my 2300 apart again I will try and find the part number of the LCD for you, maybe other laptops used that panel? -
PB Duo 2300c and 270c Capacitor list
Challenger 1983 replied to Challenger 1983's topic in PPC PowerBook & iBook
Did you end up getting that Ebay screen? -
PB Duo 2300c and 270c Capacitor list
Challenger 1983 replied to Challenger 1983's topic in PPC PowerBook & iBook
Do you have a dock?, if so try that and see if an external keyboard works, I would like to say that bad caps would cause this but you might want to dig out a multimeter and start testing the fuses on the logic board as well as other components for continuity. First step is probably to get that board recapped though -
PB Duo 2300c and 270c Capacitor list
Challenger 1983 replied to Challenger 1983's topic in PPC PowerBook & iBook
Will a higher voltage cap affect it at all?, if not I’ll order a set right away -
PB Duo 2300c and 270c Capacitor list
Challenger 1983 replied to Challenger 1983's topic in PPC PowerBook & iBook
Will a higher voltage cap affect it at all?, if not I’ll order a set right away -
PB Duo 2300c and 270c Capacitor list
Challenger 1983 replied to Challenger 1983's topic in PPC PowerBook & iBook
So I finished recapping the logic board of the 270c, the only issue I have now is those two unknown capacitors on the 2300c logic board, is there any way to figure out what they are? -
this is the connector