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Recapping my 800xl. Cap list?

capacitor repair capping

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#1 Justin Payne OFFLINE  

Justin Payne

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Posted Sat Feb 3, 2018 1:12 PM

Hey all,

 

I'm in the process of gathering up my BOM's for recapping my 800xl. I haven't pulled all of the caps to get the lead spacing and the service manual doesn't give that kind of detail. Did anyone ever gather such info? If not, when I do I can make it public. I just didn't want to reinvent the wheel.



#2 DrVenkman OFFLINE  

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Posted Sat Feb 3, 2018 3:18 PM

There's nothing non-standard about any of the internal caps in most Atari stuff. Modern replacements will work just fine for all of it. But is it really necessary to recap stuff on a working system? I own 15 A8 computers and two 5200's. I've only ever had to replace one tiny cap in the video circuit of one of three 800XL's. I bought a dozen or so replacements for the 40 cent part just to make it worth the order, but the replacement just dropped into place.



#3 1050 OFFLINE  

1050

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Posted Sat Feb 3, 2018 5:20 PM

I'll also echo the non-need to do this. Only issue
with caps is in the 1050 drive and that's because of
the monster legs on those can work the solder and
fatigue it into mechanical failure. Rare is the bad
cap that has bulged from good old days when they
used the good soup inside them. Millennial cap
makers went cheap and used the weak sauce which
started the bulged cap fad in the first place.
Since then it's blamed for everything including
how the battery in my car just died.

If it were made at the turn of the century, you
might want to look up forums for that device and
read a bit more on it to see if those were stinkers
or not. I've got a couple of PC video boards with
100% ooze and bulge, but nothing like that from
the 80s or 90s.

Won't try to stop you and no, not to my knowledge
has anybody made such a list before this. Never
was a need...

#4 kheller2 OFFLINE  

kheller2

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Posted Sat Feb 3, 2018 5:33 PM

I haven't seen an 800XL yet that needed a recap.  The large ones in the 1050 and even 1200XL can go, I have a 1200XL with a slight bulge, but it still works fine.

 

However, BSR/ADC Equalizers from the late 80's and early 90's and Technic's receivers from early 80 -- yeah.. recapping makes a difference.



#5 Level42 OFFLINE  

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Posted Sat Feb 3, 2018 6:46 PM

Totally agree.

I own quitte a few A8's and non ever needed a new cap.

I routinely measure all caps on about every device I work on with a good ESR meter and absolutely none ever showed bad values,
Atari apparently used a good brand, even though they didn't use Nichicon which the arcade division did....

Even the XE's ,....no problems at all.

In my arcade collecting days I replaced a number of caps, usually these were subject to heat. And there's not much heat in an A8....they're no Commodores.....

Edited by Level42, Sat Feb 3, 2018 6:47 PM.





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