I'm sure you know this by now, but just in case. The hd-bracket that was giving you some trouble works like a spring/clamp - if you pinch (slightly) the 3 arms that are sticking up towards each other then it releases and is easy to remove/insert. Also it seems like the alkaline from the caps is spreading to many places might be smart to neutralize it with vinegar rather than only cleaning with IPA.
No, actually I did NOT know that. That HD bracket was giving me so much trouble, and I even had to take it out again the other day and it was still hard then! Thanks for the tip. Funny you should mention the alkaline as I was watching Adrian (Digital Basement) today where he was cleaning the battery damage in the Amiga 4000 and he used all that vinegar. I really should do that but actually don't have any vinegar (except some malt vinegar in the kitchen cupboard which would make my Amiga stink for the rest of time). Not sure where you get pure vinegar, can you buy that in the supermarket? Failing that, I have some 5% Oxalic acid, but I would reluctant to use that, it's normally used as a rust remover.
I don't mind them too much. I understand why they were required. But this A1200 one is particularly annoying. The keyboard connector is very hard to access with the shield on. The video is edited, but it did take me quite a while prying with different tools trying to pop up the clip on it. The other main problem is heat on these passively cooled computers, the shield helps to trap the hot air, and in the A1200 it's not being used as a heat sink (unlike on the C64/C128 where they at least try to double up the use of it to get some of the heat away. I won't be reinstalling the 1200 shield.
I think the Electrolytics are fine, they will probably last another 20 years, which is likely to be longer than the life of the computer. I think the caps they used back then are particularly dodgy and suspect modern replacements will behave themselves a lot better.
It's a GoPro9. I don't use the webcam software as it's garbage and would require a computer nearby, so it's just recording and it's all put together all the footage later when editing. The mount arm is a cheapo mount from Amazon www.amazon.co.uk/gp/product/B011769YUM
Also, to get the very close shots with the GoPro, I'm using this macro lens www.amazon.co.uk/gp/product/B094DFJVMB , the GoPro footage is also filmed in 4k and then the final video is 1080p which allows the shots to be cropped in even closer without losing too much resolution.
Not sure, I thought it was a little weird to have access to chips that are soldered down. But then there are a few connectors in there, but most are unpopulated.
I've not tried that as I've only got 1 soldering iron (if you don't count the de soldering station, which is basically a giant soldering iron), have you had success doing that?
everybody thinks that because its tarnished the caps are leaking well thats not the case, in the earley days it was the solder, it use to oxidise and that's what the green shit is on the board with a little alcohol and a tooth brush you could clean it or reflow it with better quality solder
Smart idea using capton tape
Thanks 👍
I'm sure you know this by now, but just in case. The hd-bracket that was giving you some trouble works like a spring/clamp - if you pinch (slightly) the 3 arms that are sticking up towards each other then it releases and is easy to remove/insert. Also it seems like the alkaline from the caps is spreading to many places might be smart to neutralize it with vinegar rather than only cleaning with IPA.
No, actually I did NOT know that. That HD bracket was giving me so much trouble, and I even had to take it out again the other day and it was still hard then! Thanks for the tip. Funny you should mention the alkaline as I was watching Adrian (Digital Basement) today where he was cleaning the battery damage in the Amiga 4000 and he used all that vinegar. I really should do that but actually don't have any vinegar (except some malt vinegar in the kitchen cupboard which would make my Amiga stink for the rest of time). Not sure where you get pure vinegar, can you buy that in the supermarket? Failing that, I have some 5% Oxalic acid, but I would reluctant to use that, it's normally used as a rust remover.
@@DavePoo2 supermarket yes - super cheap also no need to buy the expensive stuff ;-)
I hate RF shields, definitely a graduate of the Adrian Black school of shield throwers here. :)
I don't mind them too much. I understand why they were required. But this A1200 one is particularly annoying. The keyboard connector is very hard to access with the shield on. The video is edited, but it did take me quite a while prying with different tools trying to pop up the clip on it. The other main problem is heat on these passively cooled computers, the shield helps to trap the hot air, and in the A1200 it's not being used as a heat sink (unlike on the C64/C128 where they at least try to double up the use of it to get some of the heat away. I won't be reinstalling the 1200 shield.
If the values are low enough could you swap the capacitors out with solid ceramic or tantalum caps.
I think the Electrolytics are fine, they will probably last another 20 years, which is likely to be longer than the life of the computer. I think the caps they used back then are particularly dodgy and suspect modern replacements will behave themselves a lot better.
don't damage ya board don't damage ya face haha best line ever 🤣
Did I say that! 😄
@@DavePoo2 yeah 🤣🤣 th-cam.com/video/MhOMYSjr8RM/w-d-xo.html
@@JOELY79 It's good advice
@@DavePoo2 sure is
11:08 - is that a GoPro8 you're using for recording (with the "Webcam Utility" Software for it) - and also what kind of "mount" do you use there?
It's a GoPro9. I don't use the webcam software as it's garbage and would require a computer nearby, so it's just recording and it's all put together all the footage later when editing. The mount arm is a cheapo mount from Amazon www.amazon.co.uk/gp/product/B011769YUM
Also, to get the very close shots with the GoPro, I'm using this macro lens www.amazon.co.uk/gp/product/B094DFJVMB , the GoPro footage is also filmed in 4k and then the final video is 1080p which allows the shots to be cropped in even closer without losing too much resolution.
Didn't somebody say that they were originally going to ship the A1200 with just 1MB, with a socket for the another MB, hence the easy access ?
Not sure, I thought it was a little weird to have access to chips that are soldered down. But then there are a few connectors in there, but most are unpopulated.
That is the clock port to add a real time clock (RTC) or other expansions like a serial peripherial interface (SPI) controller, etc.
Removing those round caps use two soldering irons.
I've not tried that as I've only got 1 soldering iron (if you don't count the de soldering station, which is basically a giant soldering iron), have you had success doing that?
@@DavePoo2 yes its super easy and does not lift any traces. You will need fine tips . It also works on tiny resisters.
can you give us all a recap on how its going lol.
I would love to tell you, but I am incapactortated
@@DavePoo2 are you sure your not incapacitated ?
everybody thinks that because its tarnished the caps are leaking well thats not the case, in the earley days it was the solder, it use to oxidise and that's what the green shit is on the board with a little alcohol and a tooth brush you could clean it or reflow it with better quality solder
I think in this case, they were actually leaking.
That soldering tip is too big....
Thanks for the "tip"
That's a REV 1D4
Yep, and it's "channel zee" not "channel z"