68kMLA Classic Interface
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| Question about the Macintosh Portable | |
| Posted by: Froggy814 on 2026-04-08 16:18:20 Alright! Thanks! I found JMC's video and he had the list for the floppy drive, And I found that to have an external scsi, you need a diode from 5v to one of the pins, TheTechKnight explains that but I found that out because of JMC. Is that correct? | |
| Posted by: Froggy814 on 2026-04-08 19:26:31 I found out that the dip switches are for rom association. Thanks to this site, It hasn't been updated for 10 years so I downloaded it with httrack! Froggy | |
| Posted by: Froggy814 on 2026-04-10 15:24:05 Welp, all of my stuff for the computer showed up. Thankfully Joes computer museum was kind enough to add a hybrid module after I had ordered. But Its all here, The battery eliminator and the bluescsi with the hybrid module. Just finished soldering them together. Now, just waiting for caps to tear the portable down again! | |
| Posted by: Froggy814 on 2026-04-14 14:35:08 Does anyone have a detailed video or description on how to install a hybrid module? Thanks! P.S. My caps are arriving on the 16th! (I hope) | |
| Posted by: Froggy814 on 2026-04-17 17:14:08 All of my capacitors arrived! w00t, Now to install them! I will update if al goes bad, or smoothly! | |
| Posted by: 3lectr1cPPC on 2026-04-18 19:37:03 Good luck! | |
| Posted by: Froggy814 on 2026-04-19 07:55:52 Thanks! A lot of pads lifted 🙁 Now I have to trace traces... Fun! | |
| Posted by: Froggy814 on 2026-04-19 16:15:57 It works, 4 bodge wires (one on the hybrid pins and 3 on the caps), a couple of trace soldering and viola! It fired right up with a new hybrid module and caps with a new usb-c power supply I made and a battery eliminator... It showed that there was no hard drive connected with only like 6 pixels dead! I cant believe it fired up first try. Thanks to @3lectr1cPPC @finkmac @joevt @SuperSVGA @pl212 and @Juror22 for helping me make this portable alive again. I will share it starting up when I can. Thanks soooooooooooooo Much! | |
| Posted by: Froggy814 on 2026-04-19 17:23:46 @3lectr1cPPC You might want to put down on your website that their are some caps on the ball mouse as well | |
| Posted by: Froggy814 on 2026-04-20 12:39:57 Can someone tell me what's wrong? I insert my Sd card that has the ini file and hda file into the bluescsi and I plug the bluescsi into the portable but the power light only turns on when the external power bridger is in place and the act light never lights up. Also there is no log file on the sd card. Thanks! -Froggy | |
Posted by: 3lectr1cPPC on 2026-04-20 19:06:51It works, 4 bodge wires (one on the hybrid pins and 3 on the caps), a couple of trace soldering and viola! It fired right up with a new hybrid module and caps with a new usb-c power supply I made and a battery eliminator... It showed that there was no hard drive connected with only like 6 pixels dead! I cant believe it fired up first try.So glad to hear you've got it running! I can't offer any advice on the bluescsi but I'm sure someone else here can. Great work. Let me know what the cap values on the trackball are and I'll add them to my site. | |
| Posted by: Froggy814 on 2026-04-20 19:16:48 Alright! If you have a portable you'll want to replace them one of them was fine the other had the tell tale electrolytic burning sound. Caps And Values - 16v 10uF Radial 4mmx8mm and 50v 1uF Radial 4mmx6mm There's your values @3lectr1cPPC I'm glad I was able to get the portable working, And I figured out one problem of the bluescsi, the latest .uf2 for the pico doesn't work, unfortunately I still cant get it to boot. | |
| Posted by: Froggy814 on 2026-04-20 19:54:10 Here is my latest log.txt remove the .zips and those are my files i am using. I found that the latest bluescsi pico update doesn't log or flash lights so I downgraded, The .ini is my homemade ini trying to get the portable to boot. | |
| Posted by: Froggy814 on 2026-04-21 14:57:04 Hey everyone! I was able to get some sad mac codes by I think pressing the interrupt button, (It could have been the reset button) Could you tell me what they are? I think the one with the flag code 0300 major code 1303 and minor code 0007ffba means the ram is broken, but I am not curtain. Does anyone know? P.S. There might be more! 🙁 I thought when it turned on it would all work... I dont know if it likes all the new parts in it...          | |
| Posted by: Froggy814 on 2026-04-21 14:58:20 Thanks for the help in advance. | |
| Posted by: finkmac on 2026-04-22 08:43:44 good work. bodges will get easier over time. Can someone tell me what's wrong? I insert my Sd card that has the ini file and hda file into the bluescsi and I plug the bluescsi into the portable but the power light only turns on when the external power bridger is in place and the act light never lights up. Also there is no log file on the sd card. i dunno what you mean by that. what's an "external power bridger"? start simple. remove the disk, remove the bluescsi. power on. what do you see? share a good photo. then, try to boot from a floppy disk, share a good photo of that. if you press the interrupt switch it will give you a sad mac, don't worry about that right now. | |
| Posted by: Froggy814 on 2026-04-22 09:10:07 By the external power bridger I mean the bridge for the external power for the bluescsi.  Unfortunantly, I don't have any floppy boot disks... I have taken a whole lot out of the equation. I took the bluescsi off. I took the floppy drive off and the speaker, although I know it does chime. I will be sending a video in a couple of minutes though. | |
| Posted by: Froggy814 on 2026-04-22 09:12:04 I also fixed the Bluescsi problem, I know I am doing the bluescsi correctly. I read on github someone had this problem and it was a broken trace and I was able to get a log file from the pico. But when everything was initialized it just said bus:busy and bus:free. | |
| Posted by: Froggy814 on 2026-04-22 09:34:02 Don't worry about the voltage being 7.46 it's actually on the dot 7.5v. This is the video with the bluescsi installed. The amps are also on point. Also, all of the background noise is just mama making lunch. Mmmmm! 🙂 View attachment 20260422_091609.mp4 | |
| Posted by: Froggy814 on 2026-04-22 09:45:22 This is technically the first mac in my family since like, the 1990's. Dad really hates them and so all ive used has been windows and never anything this old. My uncle had a powerbook. I think it was the one with the emulation layer so it could have compatibility with older mac stuff and he hated it and hasnt owned a mac since. Also dad loves all the new and throws out all the outdated stuff so I dont have any floppy disks or any experience with old macs or the like. | |
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