• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

Classic II cure not so curative - a mininovel with photos :P

phreakout

Well-known member
The saucer that sticks to the classic on the side? I don't have that... The soonest I could get it to you is this weekend. Hey someone here name a price for what you think the Lobo is worth, I have no idea.
First, find out how much it would cost to send the logic board to Sydney. Then, based on that price, figure in how much the Classic II is worth in today's money. Then come to a median for what seems reasonable for your compensation. That would give you a rough estimate as to how much it would cost. International deliveries will always be pretty expensive, but if you stick to shipping it out via the post office than FedEx or UPS, you will find that it is cheaper.

Midnight Commando: Please tell me you have indeed burned your fingers in the attempt to solder/desolder your project. If so, you have earned our respect as a hardware hacker. In a way, it is one way to be considered one of the elite. Don't give up, though. Your experience will get you somewhere.

Until new pictures of your current Logic Board are posted, it's hard to say if whether you're flogging a dead horse or if it can in fact be completely revived. You've certainly got a lot of cleaning up to do along with some patching up of what has been damaged. Don't feel bad about having the pads lifting off the board and breaking; its happened to me too. The best thing to do is to visually follow the paths of where the traces go. This will get you to the place where you'll need to create a new bypass. I, too, agree that using a small gauge wire (about 24 AWG or lower) will give you the benefit for not using so much heat.

I've done my share of recap jobs in the past. And I'd be lying if I said I didn't make any mistakes. The thing I've learned is to take your own sweet time; you can't rush art.

Btw, as a hint, I've found that almost all boards created by Apple since the Macintosh II are in fact surface mount components (SMTs). Very rarely have I found a genuine Apple product that used components that had to be soldered through the holes on a printed circuit board (PCB).

73s de Phreakout. :rambo:

 

Osgeld

Banned
Midnight Commando: Please tell me you have indeed burned your fingers in the attempt to solder/desolder your project. If so, you have earned our respect as a hardware hacker
As someone who does indeed burn his fingers quite a bit soldering, maybe I am a bit of a snob, but I think the respect comes only when you manage to solder your finger to something, Its much more painful then just the heat

and after time the heat and burns do not bother you much, if at all ... just the other night i was soldering a wire, and the insulation had melted off under my fingers

 

Mars478

Well-known member
I burned myself once AFAIR (Remember), got a ginormous blister. The other times I touched my nail but it does not hurt.

 

Trash80toHP_Mini

NIGHT STALKER
De nada, comrade!

I love your avatar too, but the designer missed the boat, IMHO. If the colors were a tad brighter, solid, and ordered correctly to match the Rainbow Apple Logo, it'd be absolutely PERFECT!
I agree. I'd do it myself, but frankly I'm not a graphic designer. I'm a photographer and a sucker for old tech.

However, the Rainbow Apple colours would be totally pimpin'. :)
Consider it done, comrade! :approve: The only question is whether you want it with the pirate eye-patch or without! [}:)] ]'> [;)] ]'> [:D] ]'>

 

MidnightCommando

Well-known member
The saucer that sticks to the classic on the side? I don't have that... The soonest I could get it to you is this weekend. Hey someone here name a price for what you think the Lobo is worth, I have no idea.
First, find out how much it would cost to send the logic board to Sydney. Then, based on that price, figure in how much the Classic II is worth in today's money.
I hear Classic IIs aren't that expensive today, what with all the iMacs that are out :p

Midnight Commando: Please tell me you have indeed burned your fingers in the attempt to solder/desolder your project. If so, you have earned our respect as a hardware hacker. In a way, it is one way to be considered one of the elite. Don't give up, though. Your experience will get you somewhere.
A very long time ago, when I was repairing a PowerBook 1xx (I don't remember the /exact/ one) for a friend (battery issues) I actually gave myself significant burns across my hand while I was working - I didn't know at the time that the cells got so hot! :(

And also, I have burned my fingers, yes - electrolytic caps make WONDERFUL heatsinks! :(

Until new pictures of your current Logic Board are posted, it's hard to say if whether you're flogging a dead horse or if it can in fact be completely revived.
I'll post a high-res photo of the area with the two stripped pads/tracks when I get back from breakfast. Hopefully that will be adequate to determine what's going on :) I'll probably try to get that logic board off Mars anyway - and if I get this one fixed, I can use it as a spare, or give it to someone who has a screwed Classic II :)

This is ending up to be more trouble than I anticipated. But never will it be more trouble than it's worth :D

 

MidnightCommando

Well-known member
$20 AU wouldn't be soooo bad... but I'd still probably see the whole machine for that ...

what's your US exchange rate like at the moment? I think it's something like 0.75? How does $15AU take your fancy (probably ends up being just over $10US, possibly closer to $11) and I'll also cover shipping?

I'm also going to have to feed trag $15US or so to send me a set of replacement caps - thankfully I already have the values :)

 

MidnightCommando

Well-known member
Until new pictures of your current Logic Board are posted, it's hard to say if whether you're flogging a dead horse or if it can in fact be completely revived.
I'll post a high-res photo of the area with the two stripped pads/tracks when I get back from breakfast.
Just before I post the photo, a thought a friend of mine had about SimasiMac:

The last owner of that machine never finished their last game of chess, hence the chess board whenever you turn it on...
It made my day :D

Here you go - a high-resolution photograph of the current state of the board... (it's 7MB, so be warned fairly)

And a preview :p

reassembled-logicboard-fucked-thumb.jpg.490e6fbd1ac286e77bf748523bd25d1f.jpg


 

Unknown_K

Well-known member
If you lift of a pad you need to super glue it back down on the board, let it dry. If the track is ripped use some flux and solder it back to the other side. You will need a meter to check to see if the fix worked.

When reworking capacitors revome the old part, clean with 100% alcohol any goo left over, remove the old solder with an iron and copper braid, re-tin with solder, then put new capacitors on. I suggest you use the old rosin-lead solder and not the new lead free junk (less cold solder joints).

 

MidnightCommando

Well-known member
the new lead free junk
I hear ya. I assembled a DMM with solder that was 99.3% Tin, and 0.7% Copper ... very hard to work! Thankfully it wasn't TOO much of an adventure.

RoHS - making electronics hobbyists' lives hell since ... when did the EU sign up to that garbage?

 

MidnightCommando

Well-known member
I like the name of the mobo pic.
You're welcome to tell me it's an inappropriate name, but I can't think of a better description for what I did to it :(

Btw, I have thought that if you would like I can ship you back (with me covering it) my now-a-little-difficult-to-fix classic II board - that way, if you decide to sell or give the classic II to someone who has the know how, they would have everything necessary to get the machine running again - or should you find the time and inclination (and possibly a little help!) ... I also have all the capacitor values written down as you noted earlier so the lack of caps won't pose a /huge/ problem.

Let me know if that's of any use to you - if it's not, no biggie, just a thought.

 

Trash80toHP_Mini

NIGHT STALKER
Darn! I am in the process of doing it!Let's see who can do it better :p
OK! Here's my first pass at it. ;)

hybridlogo04.jpg


The Orange needs a little more saturation for differentiation from the Yellow.

The right edge probably needs to be tone balanced so it looks straight, but it might work, as is, on a white background.

I'm more than half tempted to do a rounded, bite equipped rev . . .

. . . with a portion of the leaf as a "flag" hangin' from the mast/riser. }:)

Dunno though, that's one of those "over the top" inclinations that I've been trying to moderate just a bit . . . [V]

 

Osgeld

Banned
RoHS - making electronics hobbyists' lives hell since ... when did the EU sign up to that garbage?
dunno about where your at, but in the states RoHS only applies to commercial application, and you can use lead solder all you want as a hobbiest

 

LCGuy

LC Doctor/Hot Rodder
I'm fairly sure its still legal to use leaded solder here in Australia, Jaycar even sells it, even though theirs is 60% tin.

 

MidnightCommando

Well-known member
I'm fairly sure its still legal to use leaded solder here in Australia, Jaycar even sells it, even though theirs is 60% tin.
Uh, solder has been 60% tin / 40% lead for a VERY long time...

RoHS - making electronics hobbyists' lives hell since ... when did the EU sign up to that garbage?
dunno about where your at, but in the states RoHS only applies to commercial application, and you can use lead solder all you want as a hobbiest
I'm in Australia. And I'm referring to that many kits now come with the leadless solder - somewhat serviceable when you're starting a project, but perhaps less so when it comes repair or tear-down time.

 

LCGuy

LC Doctor/Hot Rodder
Oh right, I thought older solder used to have more lead than that. *is stupid* :I

 

MidnightCommando

Well-known member
Oh right, I thought older solder used to have more lead than that. *is stupid* :I
Plumbing solder is 50/50 Tin/Lead.

Electrical solder is 60/40 Tin/Lead.

The very early soldering (with the giant pokerirons that you'd heat in an oven or fire) would probably have been done only with the half-and-half.

I'm of the understanding that the ideal ratio of tin to lead in solder (for electronics work) is actually 63% tin, 37% lead, but I'm unsure why.

 
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