WHDLoad A600 2MB chip RAM

  • Thread starter Thread starter AmiNeo
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Quick question. What are these SMD components? The one to the right looks a bit oxidised / corroded, not sure if that would do this?

I will pull the board out and check the joints tomorrow.
 
Check to see if it is actual corrosion or just dirt build up. A Q-tip (cotton bud) or a toothbrush dipped in isopropyl alcohol should remove whatever it is.

That's the main area of the board that deals with power distribution and regulation so don't go Rambo on it lol

Make sure you dry the area with kitchen towel or similar before you apply power again though.
 
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What are the square things?
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I was unable to remove it with rubbing alcohol and a Q tip, but some gentle rubbing with the flat end of a small flat head screw driver did the trick.

It does seem to be corrosion. Possibly something was missed when it was repaired?

If I was to suspect anything at this point, this component looks to be the only thing out of place but I have no idea what it is or if it can be replaced... it doesn't look like the other capacitors so I'm guessing it isn't?
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Looks like the IDE connector replacement was a bit amateurish.... im seeing some cross joins and one or two pins that may not even be properly soldered here?
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That's some terribly amateurish soldering on the IDE header. It needs sorting out for sure!

Just from a cursory glance, I can see plenty of problems with it.

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As for the component with the 'rust'. It looks to be just some tarnishing on the outside, nothing to worry about but you can always make sure by asking your repair guru to take a closer look at it.
 
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I have ordered some supplies from Amazon. I'll sort it out tomorrow. Hopefully that will be all it is then!
 
Right. I've managed to get the supplies and try to tidy up the joints. Unfortunately beneath the joined up pins, after removing the solder, there was exposed copper of the PCB which the solder doesn't seem to want to let go of. I think this is beyond my skill level to fix.

The miggy works fine booting from floppy. I've never seen anything like this.

Looks like I may need to pass this one on to someone who is more skilled and can rescue it. Since its been recapped, if this IDE port could just be sorted I'm sure this would be an amazing A600 example for anyone for years.

Is there anyone here that has the skills and may be interested in taking it off me for some cash towards another board? Or a trade with some cash their way?
 
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Right. I've managed to get the supplies and try to tidy up the joints. Unfortunately beneath the joined up pins, after removing the solder, there was exposed copper of the PCB which the solder doesn't seem to want to let go of. I think this is beyond my skill level to fix.

The miggy works works fine booting from floppy. I've never seen anything like this.

Looks like I may need to pass this one on to someone who is more skilled and can rescue it. Since its been recapped, if this IDE port could just be sorted I'm sure this would be an amazing A600 example for anyone for years.

Is there anyone here that has the skills and may be interested in taking it off me for some cash towards another board? Or a trade with some cash their way?
Just a thought. Have you tried using a bit of flux and desoldering braid, if not it wouldn't hurt to try. Maybe you can then clear the soldier.
 
Just a thought. Have you tried using a bit of flux and desoldering braid, if not it wouldn't hurt to try. Maybe you can then clear the soldier.
Thats exactly what I have done as a last resort today. The supplies were flux and braid. But it's not budging and I'm afraid at this point if I keep at it I'm likely to damage the board.

The miggy works flawlessly other than the IDE connector. If I ended up putting a hole in it or something I'd never forgive myself given this is already recapped as well. 😂
 
Retro passion (as amiga passion before a name change) are apparently the ones that recapped and repaired it to begin with. I've reached out to them but not had a response as of yet.
 
I made it worse trying to remove the solder between the pins sadly. There was already copper exposed but now there's more :picard:

No change in behaviour however. Amiga still working other than IDE drive. Just had a sneaky game of Elite using my Furia 020 to test.


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Retro passion (as amiga passion before a name change) are apparently the ones that recapped and repaired it to begin with. I've reached out to them but not had a response as of yet.
Was the IDE port in that state before you sent it to Amiga Passion?
 
Was the IDE port in that state before you sent it to Amiga Passion?
It was previous owner that had it done so I don't have any idea. It was done about 2 years ago sadly. They did say there was damage around the IDE port prior that was repaired by them, which I assumed was leaky caps damage but possibly not. It definitely doesn't look like a professional job.
 
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the ideport doesnt look nice, indeed. but the three pins you were trying to separate are connected by design (3xground).

sometimes, from my not quotable experience, when you use a non-hot-air desolder station, the traces around the pinholes have a hard time. later on, when you resolder, it will look awful, regardless of your skill. but when there are no dull solder points, no solder bridges and you have continuity where it should be, then don't mind it.
 
the ideport doesnt look nice, indeed. but the three pins you were trying to separate are connected by design (3xground).

sometimes, from my not quotable experience, when you use a non-hot-air desolder station, the traces around the pinholes have a hard time. later on, when you resolder, it will look awful, regardless of your skill. but when there are no dull solder points, no solder bridges and you have continuity where it should be, then don't mind it.
They're SUPPOSED to be stuck together? Oh man what a blunder. 🤦‍♂️

I wonder what the issue with this could be then?
 
hey, you quoted me, nudge nudge :)

in regards of your ide port. the first thing i would do is: get out multimeter, open amiga pcb explorer, check continuity for all ide lines from pin to next component. then check voltage of vcc pins. next would be reset line while powering on or/and manual reset and look for state change. this could be a task where a multimeter isnt the best tool.
the second thing, i would visit the technical amiga forums for help from some one who isnt me.
 
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