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Super Sensitive XB - Triton XB Cart Rarely Booting


chue
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I recently acquired a Triton Super XB cart and am having trouble booting it. I have 2 TI's and it doesn't boot in one of them. On the other it boots if I have it seated just right. I really can't explain what "just right" means - it takes a few tries fidgeting with the cart. Once the cart is bootable, it will always boot until I pull it out of the slot.

 

I've already reseated the socketed chips, and I think I will try replacing the capacitors next. I just want to make sure I have the right values though...

 

As far as I can tell there are two types, but I need some help identifying them.

 

The first type is an orange one with the marking "33-16". Google tells me that this is a tantalum 33 uF cap.

The second type is a blue one that has the marking "104M". This appears to be a 100 nF ceramic cap.

 

Pics of caps and cartridge board are attached.

 

Am I right on the cap identification? Is there something else I should be doing with the cart to get it to boot?

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post-47499-0-07442800-1497973445_thumb.jpg

post-47499-0-68238800-1497973454.png

Edited by chue
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The only thing harder than cap identification is finding an eraser! I found some other rubbery-like material and tried cleaning the contacts with that.

 

You guys were spot on to try cleaning the contacts. It now boots in the TI that didn't boot before. I still have to do some fidgeting with the cart though.

 

I'll try a real eraser next (I have to go buy one), and after that some cleaner as Greg suggested.

 

Thanks!

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...

I'll try a real eraser next (I have to go buy one), and after that some cleaner as Greg suggested.

 

If it is not on the end of a pencil, be sure you get a ruby eraser (not artgum) because a ruby eraser should contain fine abrasive material (pumice, etc.) that will aid in wearing off the oxidation from the contacts.

 

...lee

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