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Mac Classic 2 Problem Diagnosis.

In the time you've taken to post repeatedly, you could've soldered every joint on the analog board. :)

You've been given lots of good advice, why not take it? Solder -- don't just "reflow" -- the specific connections that have already been pointed out to you. The yoke connections are the first things to take care of. If you read the classicmac2.pdf doc, you will find advice that these connections should be resoldered whether or not you can see anything wrong, along with explanations for that advice.

The symptoms you describe are pretty common, and the likely solutions are well documented.

 
OK Thanks! I am just very nervous about screwing this up. I Played with soldering on an old PC Board and it was pretty easy so I am going to give it a go. This is my first (Hopefully) Useful Solder job ever.

Thanks to the support everyone has given, and sorry if I am pushy!

:) :beige: :b&w:

 
OK I soldered, I soldered the connections on the yoke. All the connections near the speaker.

Most of the CRT Controls as well. With new solder. I did some extra soldering on some suspicious joint, and I accidentally joined to solders together. I tried turning it on for a few seconds, it made a loud squeaking noise, and there was a bright light in the glass neck of the tube. I Quickly turned it off. I need to get a desoldering tool as well, but I do not know if this is progress or not.

Thanks!

 
OK So I de soldered the two joints I accidentally connected, and I resoldered half of the Vertical IC Chip.

It just displays no video, nothing at all. There is a faint orange light in the glass neck, and it makes a pop sound from the speaker at boot.

Would I have to replace the WHOLE analog board? or is it like the CRT or something.

Arghhhhh.

 
Since nobody else has posted, I shall do so. By bridging two components together, and then applying power, you have most likely fried something on the analog board. Since I have limited hands-on experience with the insides of a compact Macintosh myself, do not take my word for it, but that is my initial thought. It might be a more sensible decision to simply acquire another compact instead of working further on your Classic II. Let this be a lesson to you in the future though - be less curious and take more time with repairs. It might be useful to let us know which joints you bridged.

 
Unfortunately wackymacs is right. You have killed something on that analog board, and possibly also damaged the crt (bright flashes emanating from within a crt are a very bad thing). Debugging that new problem (which is almost certainly more complex than the original one) on top of what you were already trying to do is asking a lot. You're better off getting another unit, and performing a transplant.

And if you need to solder anything in the future, please be sure to inspect your work very carefully before reapplying power. Haste is costly.

 
No, I bridged two joints on the same component...

There is not a bright flashing light in the back, its just a faint glow, like a lightbulb but VERY faint...

I'll take a picture. Would Washing the Mobo do anything? The MoBo does have some corrosion.

I really want this mac to work. Do you think a good idea is a replacement Analog board?

Arrrr.

 
No, I bridged two joints on the same component...
Click to expand...
That can and generally will still fry things.
There is not a bright flashing light in the back, its just a faint glow, like a lightbulb but VERY faint...
Click to expand...
Please get your story straight.
I did some extra soldering on some suspicious joint, and I accidentally joined to solders together. I tried turning it on for a few seconds, it made a loud squeaking noise, and there was a bright light in the glass neck of the tube.
Click to expand...
(bright flashes emanating from within a crt are a very bad thing).
Click to expand...
 
It was not flashing as described.

Now it is in the current state it was in before, after I hit the top corner of it.

I am sorry if I seem rushed or my facts are not correct.

Would a new analog board do me good?

 
As I already said, it would probably be better to just get another one off eBay, unless someone will send you an analog board for cost of shipping. There's still the chance that another part of the CRT assembly, or the CRT itself, is now damaged.

 
Washing it probally will not help much of anything, you most likely fried something on the logic board, why you would power something while its obviously shorted out is beyond me.

Honestly seeing the progression of this thread I would not suggest you mess with another machine, there are things inside that could very well kill you. Along with your rushed, half hazard, total density, its just a recipe for danger

Find a machine on ebay that is in good working condition and be happy

 
...
Honestly seeing the progression of this thread I would not suggest you mess with another machine, there are things inside that could very well kill you. Along with your rushed, half hazard, total density, its just a recipe for danger

...
Click to expand...
And that helps, how? If you are going to slam someone, at least spell "haphazard" correctly.

 
noone was getting angry or slamming, if you look back on the thread what you might see is someone who really shouldnt be messing around with the insides of a mac, not following instructions, and when they did they did such a bad rush job they went and made things 10x worse

but I retract my statement, fry your mac, put your self in the hospital, do whatever you want because you have made it totally clear that is what your going to do anyway

And if you knew what you were doing you would not have killed your mac over a solder bridge

And that helps, how? If you are going to slam someone, at least spell "haphazard" correctly.
Click to expand...
Thanks for your input spelling sheriff, don't you have somewhere else to troll

 
Could the Logic board be the culprit or not? I haven't washed it...
Click to expand...
No. Both myself and tomlee told you that you've screwed something on the analog board. It's really that simple.

No need to get angered. I know what I am doing, and I cannot buy another machine.
Click to expand...
You clearly don't know what you are doing. Since attempting to repair this, you've made it ten times worse. If you knew what you were doing, you would NOT have "accidently" bridged two solder joints and THEN applied power.

 
Hmmmm. Then I should just give up on this machine then. I clearly should be more careful. I hope you guys don't think of me as a fool. I really wouldn't like to have a bad Presence on this forum.

Thanks for your help.

 
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