Proper tools for Atari adjustments (especially RF)

[mojoatomic]

When installing cap kits & voltage regulators, any type of repairs to the RF section or even color adjustments - I suggest you pickup a set of anti static adjustment tools similar to these . You don't have to buy these exact ones, I simply list them as I use these and they're high quality.

 

Whenever you change the filter and regulation section out on an Atari, especially those with 3 pin RF sections (original 2600) - it's possible that you'll need to adjust the trimmer in the RF block as the picture will be fuzzy and maladjusted until you do. It could even be a black and white fuzzy mess with no sound. This is normal, it just needs to be adjusted. This isn't as much of a concern on 5 pin RF units, but even they sometimes need the adjustment.

 

Read this twice, because it's important: You MUST NOT use a screwdriver, Allen key or anything metallic for this adjustment. If you touch the metal RF chassis during the adjustment and short to the coil, you WILL let the magic smoke out of the RF block.

[S1500]

Does this also apply to that adjustment pot on the underside of a Coleco Gemini module?

[mojoatomic]

Does this also apply to that adjustment pot on the underside of a Coleco Gemini module?

All CMOS based gear is especially static sensitive - I would always suggest these type tools be employed for repairs of any type for this era gear. Also, pick up a anti-static wrist strap

[Osgeld]

Let's say there's no risk of anything mentioned, which there very much is, using a metal tool effects the properties of the part

 

so when you tune it, once the tool is removed it will change anyway

Edited April 4, 2017 by Osgeld

[Keatah]

A metal adjustment tool has the ability to make a microscopic chip in the ferrite core. Then when turned that crack will grow full-size and the core splits apart. A Nylon or plastic tool won't do that.

[+save2600]

^ beat me to it Keatah! Damn are those ferrite cores fragile. Learned my lesson about them a long time ago.

[mojoatomic]

They really, really are. Especially when they're 40 years old. Just look at them wrong with a screwdriver and they'll snap. One little chip is all it takes -

 

Plus - you can't adjust anything RF or color related on an Atari with a metallic instrument anyway - it interferes with the field and the adjustments are worthless.

Edited April 4, 2017 by mojoatomic