unxmaal Posted June 21, 2018 Report Share Posted June 21, 2018 I just obtained a working MP2000, and am faced with the bootstrap problem. I have no interconnect dongle, and I don't yet have any PCMCIA cards. Is anyone in the Atlanta area willing to provide a bootstrap card? Also, I have 2 non-working MP100s. One doesn't power on at all. The other one powers on but displays either a mostly dark screen or scrolling lines. Anyone have any ideas about this? Quote Link to post Share on other sites
68kMLA Supporter IlikeTech Posted June 21, 2018 68kMLA Supporter Report Share Posted June 21, 2018 I bootstrapped mine by soldering wires to the circuit board and then to a serial cable. Quote Link to post Share on other sites
1400man Posted June 21, 2018 Report Share Posted June 21, 2018 Do you have a PowerBook with IR? You can connect to a MP2000 with NCU over IR. Quote Link to post Share on other sites
unxmaal Posted June 22, 2018 Author Report Share Posted June 22, 2018 21 hours ago, 1400man said: Do you have a PowerBook with IR? You can connect to a MP2000 with NCU over IR. I have both a Lombard and a Wallstreet, but neither boot. I've asked here for suggestions, and the suggestion was "try new RAM", which I don't own. (I did try removing individual sticks, which is no easy task in a Lombard, with no joy.) Quote Link to post Share on other sites
bibilit Posted August 14, 2018 Report Share Posted August 14, 2018 Quote have both a Lombard and a Wallstreet, but neither boot Bad Pram battery will prevent a Pismo to boot and a Wallstreet can be affected also. Quote Link to post Share on other sites
CC_333 Posted August 17, 2018 Report Share Posted August 17, 2018 On 8/14/2018 at 6:05 AM, bibilit said: Bad Pram battery will prevent a Pismo to boot and a Wallstreet can be affected also. But if one removes the PRAM battery, it'll work fine (for some reason, the Pismo won't boot with a dead PRAM battery, but it *will* boot with no battery). c Quote Link to post Share on other sites
EkriirkE Posted October 2, 2018 Report Share Posted October 2, 2018 On 6/21/2018 at 8:06 PM, unxmaal said: Also, I have 2 non-working MP100s. One doesn't power on at all. The other one powers on but displays either a mostly dark screen or scrolling lines. Anyone have any ideas about this? Your 100 will need to be recapped. C1[100u4v] and C51[3.3u35v] Quote Link to post Share on other sites
unxmaal Posted October 5, 2018 Author Report Share Posted October 5, 2018 On 10/2/2018 at 3:56 PM, EkriirkE said: Your 100 will need to be recapped. C1[100u4v] and C51[3.3u35v] Do you have a Mouser BOM for these? Or at least, a recommendation for which size/type of cap to get? Quote Link to post Share on other sites
EkriirkE Posted October 5, 2018 Report Share Posted October 5, 2018 29 minutes ago, unxmaal said: Do you have a Mouser BOM for these? Or at least, a recommendation for which size/type of cap to get? I used randoms I had on hand (see this album https://imgur.com/a/69J7YWl ) and didnt have quite the same dimensions but they still fit fine But if you want exact value matches here (these are thru-hole so sizing is not exact but will fit): C1 https://www.mouser.com/ProductDetail/Nichicon/USR0G101MDD C51 https://www.mouser.com/ProductDetail/Nichicon/UMA1V3R3MDD Also the only obvious thru-hole I don't see any designation for [470u10v] which is not the type to go bad really (and mine tested well within spec), but "might as well" https://www.mouser.com/ProductDetail/Nichicon/UVK1A471MED Those 3 are the only electrolytics i saw, the rest being tantalum or ceramic. Replacing these with tant's probably won't (easily) work as the footprints are pretty narrow Quote Link to post Share on other sites
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