exxos's Atari, Amiga & retro forum

brostenen wrote: 06 Jan 2022 00:01 Hi all.
I am a bit in a problem regarding a TF-1230 accelerator. I seem to have ripped off the C29 component on the backside of the card, when I closed the trapdoor cover. I have saved the component it self, and have both that and the card in a bag as of now.

As I can not solder any SMD components, then I first have to ask what the component does? If it is a part of the IDE interface, then I can live without using that, however if it is a part of something else, then I will have to find someone inside of the EU that can fix my card. (pesky fee's even charged on stuff you personally own now when stuff are going through customs)

I have no idea how I managed to rip this component off. I have inserted the card without any trapdoor cover, only closing the cover when the card was installed. But I guess I have done something completely stupid.

Ripped-Cap-TF1230.jpg

terriblefire wrote: 06 Jan 2022 08:11 That one is a general smoothing cap. If the card runs ok without its probably fine.

brostenen wrote: 06 Jan 2022 10:34

terriblefire wrote: 06 Jan 2022 08:11 That one is a general smoothing cap. If the card runs ok without its probably fine.

Thanks for the reply.... :-)
Thanks. So it is power-in related then? Yeah, it should not pose any serious issues then, as far as I understand basic electronics.
But if there will be any issues, would it then be something like unstable memory resulting in yellow screen or something like that?

terriblefire wrote: 06 Jan 2022 10:38

brostenen wrote: 06 Jan 2022 10:34

Thanks for the reply.... :-)
Thanks. So it is power-in related then? Yeah, it should not pose any serious issues then, as far as I understand basic electronics.
But if there will be any issues, would it then be something like unstable memory resulting in yellow screen or something like that?

Actually that one is on the 5V rail away from any 5V components. Its not even a decoupling cap its a general smoothing cap. Its highly unlikely to cause any issues. Its just there because its left over from the TF330 where the power comes into the board.

brostenen wrote: 06 Jan 2022 10:43

terriblefire wrote: 06 Jan 2022 10:38

Actually that one is on the 5V rail away from any 5V components. Its not even a decoupling cap its a general smoothing cap. Its highly unlikely to cause any issues. Its just there because its left over from the TF330 where the power comes into the board.

Thanks...
Basically if I run with my MeanWell RT-65b modded Amiga power brick, then the power source is smooth enough, that this cap missing will not be a serious issue? In other words, it is there just in case you have a lesser stable (or more "dirty") power source.

terriblefire wrote: 06 Jan 2022 10:47

brostenen wrote: 06 Jan 2022 10:43

Thanks...
Basically if I run with my MeanWell RT-65b modded Amiga power brick, then the power source is smooth enough, that this Cap' missing, will not be a serious issue? In other words, it is there just in case you have a lesser stable (or more "dirty") power source.

Its there because "why not'... i think you could be using the worst PSU in the world and it wouldnt make any diff. The ram chips are the main thing that get sulky without decoupling and they have plenty.