Challenger 1983

I am trying to figure out what these coils are, surely we could measure certain metrics of them and find a match for them

Is the 270c considered rare?, I swear I have seen more 270s than any other duo, but I guess all duos are rare anyway

You would be surprised, the very first Mac I ever posted about was a Classic with severe battery acid/rust that looked very similar to that above, i removed the rist with vinegar and painted the frame, still plenty of good metal under the rust

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

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

They actually fit amazingly, there's more room with them than the original caps which was surprising.

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

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?

Did you end up getting that Ebay screen?

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

Will a higher voltage cap affect it at all?, if not I’ll order a set right away

Will a higher voltage cap affect it at all?, if not I’ll order a set right away

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