68kMLA Classic Interface
This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.
| Click here to select a new forum. | |
| Advice requested - lifted pad during LC III recap | |
| Posted by: LazarusNine on 2015-03-10 05:51:27 So, I lifted a pad on my LC III - my pride and joy. Can anyone tell me where and how to run the trace wire to get it sorted? See the photo for the problem location. The cap should be a 10uF 16V, which I was just about to lay down...  | |
| Posted by: uniserver on 2015-03-10 06:00:32 scrap the mask off this trace and solder your cap to it.  | |
| Posted by: LazarusNine on 2015-03-10 06:10:09 Perfect. A sound solution. I'll grab some trace wire now that I'm running errands, but I prefer your method. Thanks for the swift response. I'm assuming that's 'scratch' the mask off, which is pretty easy considering some is already gone! | |
| Posted by: LazarusNine on 2015-03-10 08:43:48 Okay. It is NOT pretty, but the computer seems to be functioning just fine. My 10uF 16V capacitors are clearly too large. If I had screwed one of these capacitors up, would I be able to tell immediately? Are there any good system stress tests for Mac OS 7.6.1?   | |
| Posted by: Macdrone on 2015-03-10 09:36:58 If they were wrong you would know immediately. The tants will pop and burn. | |
| Posted by: LazarusNine on 2015-03-10 12:32:35 Excellent. So, I guess I can stop worrying about it. Though I'm a bit of an obsessive. Now when I look at my LC III case, I see twisted, overly soldered caps as if they were ticking time bombs. *sigh* | |
| Posted by: techknight on 2015-03-10 12:51:25 Lol. Someone is definitely OCD. if so, the next thing to worry about is the power supply capacitors | |
| Posted by: ScutBoy on 2015-03-10 13:05:30 Think of rather as your own unique signature, or a personal "custom configuration" 🙂 | |
| Posted by: LazarusNine on 2015-03-10 13:10:39 Techknight, you're not wrong! That said, my power supply is a Dyna Comp Inc., which Uniserver and I discussed tend to have a decently long shelf life compared to the TDKs, etc. I'll get to that at some point. When I removed the old caps from the mobo, though, there was a significant amount of gunk. Scutboy, thanks for the helpful outlook. My 'signature' could use some refinement!! 😛 | |
| Posted by: uniserver on 2015-03-10 13:37:28 Well do you think you would have liked this any better?  | |
| Posted by: uniserver on 2015-03-10 13:46:26 yeah when tantalums go they look like this 🙂 http://youtu.be/u1Gsf9Lzkyg | |
Posted by: LazarusNine on 2015-03-10 14:16:53Well do you think you would have liked this any better?There's certainly a beauty to what's on display there! If those are ceramic caps, they look rather friendly in the positions they've taken. Not a lifted pad in sight and I dare say the soldering is rather clean!! 🙂 And regarding that tantalum video: *shudders* - *steps slowly away from Mac LC III* :O | |
| Posted by: uniserver on 2015-03-10 14:23:34 those are just little radial electrolyics. | |
| Posted by: uniserver on 2015-03-10 14:26:23 here is an example of SMT ceramics installed.  LC-II's are annoying with all those caps 😛  | |
| Posted by: LazarusNine on 2015-03-10 14:37:11 Oooo, I quite like the look of those little ceramics. I'm rather envious, actually! I think the 475 is perhaps the easiest re-cap of the first four within the LC series. It's a shame I'm just not as big of a fan of the 475 as I am the III. | |
| Posted by: techknight on 2015-03-10 16:03:04 As far as cap jobs are concerned, I have seen worse. MUUUUCH worse. And still work 😉 Personally for my own stuff, I dont go for Beauty, I go for functionality. My SE/30 is an example of that, I recapped back in 2001 or so, way before they started really leaking, and I started noticing the audio getting slightly weaker, and weaker. | |
| Posted by: LazarusNine on 2015-03-10 16:09:51 Techknight, those are very reassuring comments. Thanks a lot for that. I'm feeling better about things - I'm also enjoying the speed boost as a result of the overclock I performed at the same time. I'm also finding out a lot about the functionality of System 7.6.1 that I never knew, because my family went from System 7.1 on a Mac LC straight to 8.5 on an imac. It sounds like your preventative work paid off. I was quite surprised by the buildup under the old caps when they came off, because the motherboard looked 'clean' unlike my LC 475, which was clearly leaking EVERYWHERE! | |
| Posted by: techknight on 2015-03-10 17:04:44 Well, I only knew about what was happening from prior experience with old Sony Handycams from the mid 90s crapping out from bad capacitors. I recapped the SE/30 before anything was online about it. | |
| Posted by: Unknown_K on 2015-03-10 21:05:33 A dusty motherboard will show you when capacitors leak. I hate the ones that die without visual clues (no leaking or bulging). | |
| 1 > |
