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  1. Ok, so, I'd like to bring this subject back up again. So far now, my Macintosh Plus, SE, Macintosh II, and now my Macintosh IIx are affected. What's happening is that one day these macs just start refusing to boot from an external SCSI HD or CD-ROM. Re-capping the logicboard does not help with this issue either. There has got to be another component on the logicboard that ages like capacitors do and fails in time, I just havent figured out what it is yet. Have any of you out there been effected by this problem?
  2. Hello again. My 3rd problem of the week so far lol. Now my Powerbook 180c will not boot from any external SCSI device. Whenever I hook a SCSI cable up to it(I have 3 of them), it wants to boot instantly into SCSI disk mode. Is there a way around this so I can reload the OS? I don't remember having this problem years ago. Thanks.
  3. The board was already re-capped due to not having sound(sound works now). Thanks for the tip on the pin for the RTC. I'll have to see about that.
  4. I have been having odd scsi behavior on all of my older compact macs from the late 80's. My Macintosh Plus's refuse to boot from any external SCSI hard drives, even one that I had loaded specially for my Mac Plus and was working many years ago before it was put in storage. I can put the HD on my PM 9600 and it comes up just fine, but hook it up to my plus or SE's and some just sit there. I really believe there's some type of filter or scsi termination issue that develops with time. Like how electrolytic capacitors dry up and die with time and need to be replaced. My SE/30's clock also does not
  5. Didn't find any bad traces from UK4 or Y1. I need find a missing trace from C12 - side, but I don't know what it goes to.
  6. Yes I have reset the PRAM as well. The clock still does not tick forward. I'm guessing bad RTC chip? Network time is nice and all, but were talking about a standalone SE/30. No internet access. Thanks.
  7. I've seen a few hits on google with different machines where the RTC doesnt work anymore, but nothing about the SE/30. My SE/30 boots up and runs, but the time will not advance on the clock. I've replaced the PRAM battery, what could it be? Thanks
  8. Lol, sorry guys, my other phones mic was trashed. This phones mic works better, but it's video quality is very poor. This is the chirping sound. Also, yes I have re-capped the logicboard and analog board, but also have tried another logicboard and it does the exact same thing. One of the only caps I could not find was that huge cap on the analog board. Mouser had me waiting for 6 months before I cancelled the order.
  9. I'll try and record the noise again tomorrow. Yes it was working many years ago before I put it in storage.
  10. Hey there. I've got a Color Classic that no longer wants to turn on. When the switch is flicked, you can here it it energize or whatever you want to call it, then when you press the on button on the keyboard, it tries to turn on, then makes a chirping noise and shuts off. I've re-capped most of the board except the big capacitor(no one has one). Any ideas? Thanks I think my mic on my phone is busted.
  11. Ran into an issue where my power adapter for my Powerbook 540c was outputting 16v on one pin, but only 2.xv on the other pin so my 540c would no longer start up. Took the PA apart(it's epoxied together) and discovered 6 capacitors. 2x 330uf - 25v, 2x 100uf 200v, and 2x 100uf 25v. The part numbers can bee seen in the picture. While the capacitors didn't look bad, I knew they were 20 some years old and it was time to swap em out. Sure enough, as soon as I soldered in the new caps I got 16v back on both pins and my Powerbook 540c is happy again!
  12. I need the PS out of a 63X
  13. Got a Color Classic logic board here that has a bad thru hole connection. Looks like someone did a nasty job at trying to clock chip it (can't be done this easily on a CC) and reamed one of the holes out. Does anyone know where the 4 pins at G1 go to? Thanks!
  14. I did. Instead of messing around with trying to find where the connections went, I scrapped off the enamel covering the traces going to the pads and soldered the new SMD caps to the traces with a wire. The board works now, but this sadly did not fix my SCSI issue.
  15. No. But after the re-cap, my Powermac 6100 is functioning normally again. I will re-cap my 9600 next. The 475 is still not acting right. Won't launch Drive Setup either. Says it's not supported on this Macintosh O.o
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