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leejsmith

Atari 800xl covered in leaking battery restoration project.

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12 hours ago, leejsmith said:

I will see £0 from YT, not sponsored or monetised in any way.

Not talking about you making cash from YT, rather the growing range of fixer upper's on there, it's getting to the state of who can do the most extreme repair..

 

I find that side a bit sad because it takes away from the guy and gals who are just repairing machines for people, as if fixing the most broken down machine on camera is more important, it's interesting, but there's just too many folks doing it. I prefer to watch real repairs, in as much as they show common faults and how to fix them. The extreme repairs are just PCB-Porn, you seen one, you have seen all of them..

 

I'm not knocking the talent involved to do it, just the regularity of these extreme video's, your video is interesting as it's Joe public trying to fix a very destroyed machine, it's not for views or cash. Hence I like Jan Beta, FJC etc, they are doing these as customer repairs (mostly) and it's fun to see the creative ways they fix faults, if it makes them some side cash then its all good with me but how many "I found this in a bog" type vids can we watch that are done just to feed revenue.

Edited by Mclaneinc

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Thanks for your video, @leejsmith, I've been watching your channel since the DJ Legion days. Good luck on that daring project! 

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11 hours ago, leejsmith said:

Thank you.

Part 1 just popped on on my YT feed.  I guess the YT gods thought I would enjoy it and I did even though it made me cringe (especially the way that RF shield came apart).  Good luck.

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On 8/21/2021 at 2:22 PM, Peruchi said:

Thanks for your video, @leejsmith, I've been watching your channel since the DJ Legion days. Good luck on that daring project! 

Thank you, that means a lot to me. Shame it didn't have the interest to keep up the retro stuff on that channel, but the numbers show they wanted technics and pioneer.

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On 8/21/2021 at 10:55 AM, Mclaneinc said:

Not talking about you making cash from YT, rather the growing range of fixer upper's on there, it's getting to the state of who can do the most extreme repair..

 

I find that side a bit sad because it takes away from the guy and gals who are just repairing machines for people, as if fixing the most broken down machine on camera is more important, it's interesting, but there's just too many folks doing it. I prefer to watch real repairs, in as much as they show common faults and how to fix them. The extreme repairs are just PCB-Porn, you seen one, you have seen all of them..

 

I'm not knocking the talent involved to do it, just the regularity of these extreme video's, your video is interesting as it's Joe public trying to fix a very destroyed machine, it's not for views or cash. Hence I like Jan Beta, FJC etc, they are doing these as customer repairs (mostly) and it's fun to see the creative ways they fix faults, if it makes them some side cash then its all good with me but how many "I found this in a bog" type vids can we watch that are done just to feed revenue.

You do see a lot that claim it was found in this dump ect or the obviously fakes ones a lot talk about.  I really just wanted to see what it was like inside and will do my best to get it working again, but it was curiosity more than anything else.

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On 8/21/2021 at 10:55 AM, Mclaneinc said:

Not talking about you making cash from YT, rather the growing range of fixer upper's on there, it's getting to the state of who can do the most extreme repair..

 

I find that side a bit sad because it takes away from the guy and gals who are just repairing machines for people, as if fixing the most broken down machine on camera is more important, it's interesting, but there's just too many folks doing it. I prefer to watch real repairs, in as much as they show common faults and how to fix them. The extreme repairs are just PCB-Porn, you seen one, you have seen all of them..

 

I'm not knocking the talent involved to do it, just the regularity of these extreme video's, your video is interesting as it's Joe public trying to fix a very destroyed machine, it's not for views or cash. Hence I like Jan Beta, FJC etc, they are doing these as customer repairs (mostly) and it's fun to see the creative ways they fix faults, if it makes them some side cash then its all good with me but how many "I found this in a bog" type vids can we watch that are done just to feed revenue.

who is FJC ? or am I being daft...

I really enjoy Hand tool rescue channel at the moment, no fuss and the odd joke thrown in. Very relaxing to watch on a sunday morning.

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16 minutes ago, leejsmith said:

who is FJC ? or am I being daft...

I really enjoy Hand tool rescue channel at the moment, no fuss and the odd joke thrown in. Very relaxing to watch on a sunday morning.

Considering you have only 10 posts here so far, I wouldn't consider that daft :) FJC is @flashjazzcat

 

https://www.youtube.com/user/flashjazzcat

 

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Wooow!  Good show.  Looks like corrosion has gotten under the solder mask in places.  It's possible to remove the mask, clean in there and apply a new mask paste and bake it. 

 

While several of the key switch contacts may have corroded, the keycaps should clean up nicely.  If you want to re-use the keycaps you'll need the same keyboard type. There are five different 800XL keyboard variants. Yours is the AWC type 100001, otherwise known as type 2 in this thread.

 

 

If you are willing to open up and clean each switch you'll likely need to desolder each key switch off the PCB. There was a seller online who listed these exact switches as available but had no luck getting a response from them.

 

Very much looking forward to part 2, Lee!

 

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13 hours ago, Sugarland said:

Wooow!  Good show.  Looks like corrosion has gotten under the solder mask in places.  It's possible to remove the mask, clean in there and apply a new mask paste and bake it. 

 

While several of the key switch contacts may have corroded, the keycaps should clean up nicely.  If you want to re-use the keycaps you'll need the same keyboard type. There are five different 800XL keyboard variants. Yours is the AWC type 100001, otherwise known as type 2 in this thread.

 

 

If you are willing to open up and clean each switch you'll likely need to desolder each key switch off the PCB. There was a seller online who listed these exact switches as available but had no luck getting a response from them.

 

Very much looking forward to part 2, Lee!

 

You just described part 2 that is going to be public tomorrow.

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Nice to see more people repairing chronically damaged XL's.

 

@Lee, Where did you order the Futaba ML switches from?

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another Atari rescued from certain doom. it must be a zombie computer now! dont let it get a taste for brains tho hehe 🤢

v.impressive tenacity and results. altho its fortunate the keyboard is a PCB type and doesnt use cheap mylar.

if you wish to renew the silver logo, the 8-bit guy did a video a while back on how he printed his own. the ones on ebay are a bit too tall and are not the same material

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8 hours ago, leejsmith said:

Part 2, cleaning the keyboard is live

Cleaning the Crusty, Rusty keyboard from HELL.

 

Reminds me of a (successful) repair I did on my sister's dishwasher. The control panel PCB was unprotected and exposed to hot water and steam for who knows how long. Many of the traces were rusted/corroded, and I ended up needing at least 10 or more bodge wires -- in addition to some traces that were fixable with a circuit trace pen, and various other soldering fixes necessary. I finished it off with conformal coating and replaced the foam and plastic isolation layers that had gone bad.

 

I should have taken some pictures to document the process. Partially reminds me too because the control panel board was long and narrow, similar to the XL keyboard pcb. So, I had some of these long wires going from one end to the other.

 

My sister thought it was beyond hope. There were all kinds of intermittent functional errors; the wrong lights would light up on the control panel when actuating various settings, or no lights at all; and some functions couldn't be turned on or off at all. She was amazed when I put it back together and everything worked like new.
 

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14 hours ago, Tezz said:

Nice to see more people repairing chronically damaged XL's.

 

@Lee, Where did you order the Futaba ML switches from?

From a guy on ebay, they are listed for use in Acord Electron and BBC Master computers. I had one and saw it was the same type so ordered some more.

key switches on ebay

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I have a question about the pokey. Why would that chip with the soldered legs stop basic from loading ? When I have time I will try to compare the signals to a working one and check if any more legs are bad.

 

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PIA usually has more influence in that realm,

did you check your pokey for shorts or rust impregnation acting as a resistor/diode? are you sure no legs bent or touch wrong location, are the bodge legs attached properly ? You can dig back a bit more on the lsi as the plastic is a bit larger than the internal board... if the acid leaked inside the package around the legs you can have internal rust/corrosion causing the chip issues and loading down / shorting the bus

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I think bad PoKey can still cause machine to hang.  Few things to test.  Do you get the cassette load beep (as in booting with the Start key held down)?  Do you get the "atari fart" when powering on?  If it's trying to initiate a boot and the chip is bad, or if you remove the Pokey from the system altogether, you'll just hang at the blue screen with cursor at home position.

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16 minutes ago, Stephen said:

I think bad PoKey can still cause machine to hang.  Few things to test.  Do you get the cassette load beep (as in booting with the Start key held down)?  Do you get the "atari fart" when powering on?  If it's trying to initiate a boot and the chip is bad, or if you remove the Pokey from the system altogether, you'll just hang at the blue screen with cursor at home position.

his pokey acted like it wasn't on the bus, so cursor at the home position... nothing else, no noise...

that's why the suggestion to dig back on the chips plastic and try pin re attachment again was made..

Edited by _The Doctor__

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46 minutes ago, Stephen said:

I think bad PoKey can still cause machine to hang.  Few things to test.  Do you get the cassette load beep (as in booting with the Start key held down)?  Do you get the "atari fart" when powering on?  If it's trying to initiate a boot and the chip is bad, or if you remove the Pokey from the system altogether, you'll just hang at the blue screen with cursor at home position.

the pokey with soldered legs makes no sound when powering up and I also tried to get into the test menu and it did nothing and it did just hang at the blue screen.

 

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