Atari C-100 refurbishment questions

[ubersaurus]

Hey everyone, I've got a Pong unit that I'm in the process of refurbishing. I've finally gotten the thing apart, and I had some questions:

 

Is there a particular method to opening and removing the RF shield?

What electrolytic capacitors does the board use?

If I'm looking to replace the pots with 2600 paddle controller types, are there any suggestions on how to do that most effectively? The ones in there already are pretty rough, but I noticed those pots are bigger and are soldered directly to the board..

[chas10e]

the RF shield should have little tangs you twist or bend to pass through the adjacent holes , best to re-assemble 2 halves and set aside so tabs don't get mangled up while doing other work.

 

not sure about the caps values should be written on them

 

you can open the pots and clean them effectively by resurfacing the little carbon contact, they may also have interchangeable parts with 2600 paddle pots but not fully sure

[ubersaurus]

That is definitely not how this RF shield seems to be set up :\ Bottom half seems to be soldered into place. Upper half I don't see any discernable point holding it into place, though it does seem like the top of it is removable?

Edited February 28, 2017 by ubersaurus

[AlecRob]

Okay, i have a C-100 PONG as well. The paddle knobs have been GLUED on and so i cannot remove them. I would like this unit to be restored eventually too. anyone have any ideas for the knobs? if i try to pull them off, they'll certainly break i think.

[ubersaurus]

On mine, one knob popped off pretty easily. The other was jammed on and I had to pry it up with a screwdriver and needle nose pliers on either side of it - turned out the metal clip inside had rusted pretty badly.

[chas10e]

ok disassembled my C-100 and yeah the shielding is soldered on

 

first time getting the knobs off is difficult , hair dryer to heat and expand things help with a lot of pressure, I use fingertips on knobs using knuckle as a fulcrum but some sort of pry tool would work as well , they are typical "D-shaft" knobs and pull straight off

 

there is a nut on the threads of the potetiometer that have to be removed as well

 

looks like the solder side of board shielding would need to be removed first to access the parts side of board solder points that pass through the board.

 

[ubersaurus]

Bringing up this topic again - even after cleaning the paddle pots are pretty janktacular. Has anyone ever found decent replacements? Best Electronics doesn't seem to stock them.

[chas10e]

have you opened the pots to clean them ? http://atariage.com/forums/topic/184296-slowcoders-guide-to-cleaning-up-your-2600/?p=2316794

 

don't use dielectric grease if there is a carbon contact

[ubersaurus]

Already mentioned - the pots were cleaned, still janky.