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elemenoh

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  1. I put a piece of steel over the plastic connector (to avoid melting it) and use tacky flux and hot air to remove the caps. Twisting seems like a great way to tear a pad off that might be okay if you use hot air instead.
  2. I have a stack of Quantum ProDrive LPS HDDs that have sticky head mechanism bumpers. I previously tried replacing a set with stiff 1/4" water filter tubing. It worked, but was a pain to get over the flanges. I recently found some cheap silicone tubing on amazon in the exact dimensions as the original grommets (OD 8mm, ID 4mm). I cut a couple roughly and tried them out on a very dead drive today. They fit great! Here's the link if you want to give it a shot. https://www.amazon.com/dp/B07X5VY65H?ref=ppx_pop_mob_ap_share
  3. @adb9001Wow, congrats! Those monitors were great. Please take pics of the unboxing and share!
  4. Yeah all the same place. And it sounds like there will be more coming. Can't wait to see what else might be there!
  5. I posted about this on r/VintageApple, but figured you all might appreciate hearing more of the story. Here are some photos, including a couple not in the reddit post. On Tuesday, someone tipped me off about an Apple box sitting out on the curb. They said it looked like something was inside of it. Since CRTs in good condition are hard to come across I figured it'd be worth the trip to check it out. It turned out to be a brand new, sealed Macintosh 21-Inch Color display. The person clearing out the house said they only cut the tape on the top of the box that morning to t
  6. Hmm I have a classic that is showing that screen with the lines when no memory expansion is installed, and distorted bars when it is installed. Yours boots if you remove the expansion card?
  7. You can find my modern redraw of the Apple schematics here: https://github.com/mishimasensei/macse30mlb There are PDFs there you can download, but I'd recommend getting the KiCAD files so you can highlight the connections you're checking. It's very handy!
  8. Apple II folks, can you help with this? I have a disk I’m trying to image, but can’t even get it to read. I verified I can read other disks. In the video below is a Fantavision disk that doesn’t read side A, but does read side B. The disk to image doesn’t read at all. It sounds similar (but a little different) to the failed side of Fantavision. Are the noises just the drive looking for track 0? Are there any things I can try to recover data from the disk? 1531659973_IMG_0073(1).mov
  9. https://www.amazon.com/gp/product/B01ENVZ0LU/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
  10. @desertroutI need to double check, but I think this one (and a bunch of other boards) recovered after an ultrasonic clean. I recently got a tank and it recovered 6 boards that were previously full of gremlins despite lots of manual washing. Totally worth it if you work on MLBs regularly!
  11. I had a lot of wobble on one after recapping. It was resolved by replacing the 1N4148 diodes at DP3 and DP4.
  12. The thing on Pin 33 of UI4 was just some fluff from a cotton swab. I removed it and will re-check the connections to UL1. Thanks!
  13. @ymk It's showing OL on this speaker, but I get a good reading on the SE speaker. Does that indicate a break in the voice coil? If it's beyond repair, is there a modern replacement with the same dimensions I could swap in? The SE speaker is fine, but it'd be nice to replace it with a speaker of the same dimensions / specs.
  14. This IIci speaker is non-functional. A known-good speaker from a SE works okay when attached. Reflowing the joints for the voice coil wires to MLB connection wires didn't help. Neither did spraying the connector with contact cleaner. The voice coil wires seem like they're attached okay. Is there anything obvious to try before tossing it?
  15. Confirmed pin 7 of UA5 goes to ground when the button is pressed. Checked UH6 again, UL1, ram expansion pins, RAM address and data lines. if the traces are okay, is this likely to be Abad RAM chip or something else like UL1? UH6 is the only one close to the leaked caps and that was already replaced.
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