Search found 62 matches

by Pacman
Thu Oct 17, 2019 8:20 pm
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 47
Views: 10454

Re: How to: recapping the Mega STe power supply

I went inside my machine to swap the fan polarity, to see if it was exhausting the air in the right direction. Now I have no power, doesn't turn on at all. Not sure what to do :( Measured the voltages and they fluctuate between 0-1v. To try this you could have flipped the fan the other way round wh...
by Pacman
Thu Oct 17, 2019 8:18 pm
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 47
Views: 10454

Re: How to: recapping the Mega STe power supply

I've gone back in this thread and updated the images. Possible we could clean up this thread in the future ? The image looks OK to me now. GND is in effect the positive, because its at a higher potential than negative (-12v). Thanks for confirming. So the fan "+" and "-" labelling on the PCB refers...
by Pacman
Wed Oct 16, 2019 8:27 pm
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 47
Views: 10454

Re: How to: recapping the Mega STe power supply

frank.lukas wrote:
Wed Oct 16, 2019 8:00 pm
Red Wire from the Fan to GND
Black Wire from Fan to -12V
OK. I think I've finally got it now ;)
See new illustration below:
Noctua fan connector corrected_final_correction.png
Noctua fan connector corrected_final_correction.png (16.63 KiB) Viewed 586 times
by Pacman
Wed Oct 16, 2019 3:51 pm
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 47
Views: 10454

Re: How to: recapping the Mega STe power supply

Pacman your image is still wrong. It's not -12 and +12, its GND and -12. Which means no matter what, the fan will run backwards if you connect red/positive to -12. It's been a while and I don't have my MegaSTe nearby to meter the connector, but does this look right? The power supply PCB labelling i...
by Pacman
Sun Nov 11, 2018 6:30 pm
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 47
Views: 10454

Re: How to: recapping the Mega STe power supply

rubber_jonnie wrote:
Thu Nov 08, 2018 11:30 am
Just wondering if after all these posts on capacitors, Pacman should change name to Capman :D
Not a bad suggestion actually :D :lol:
by Pacman
Thu Nov 08, 2018 11:25 am
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 47
Views: 10454

Re: How to: recapping the Mega STe power supply

Thanks for confirming, Exxos. Here's the corrected pinout. I'll also replace the pinout diagram in my original posting along with all the instructions to avoid any confusion ( Oops: that didn't work -there's no "edit post" button there any longer. Any chance you could replace the diagram in the firs...
by Pacman
Thu Nov 08, 2018 10:44 am
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 47
Views: 10454

Re: How to: recapping the Mega STe power supply

Replacing the (noisy) cooling fan The Noctua fan has a 3-pin female connector attached but there is no need to cut it off and replace it with the original 2-pin connector. Just make sure only the two leftmost pins (black and red wires) attaches to the Mega STe power supply. The yellow wire isn't us...
by Pacman
Fri Feb 02, 2018 11:23 pm
Forum: HARDWARE DISCUSSIONS
Topic: Hard disk storage media
Replies: 19
Views: 4102

Re: Hard disk storage media

i am one of the Hardware developer of the Thunder Storm and Lightnung USB Card. Some Informations: Thunder: Falcon Compatible IDE Interface for the Atari TT Feature: Falcon Compatible, pure Byteswap, Smartswap (only the Data is swappt, not the Controll Register (HDDriver Compatible) ) We reacht upt...
by Pacman
Fri Nov 03, 2017 11:59 am
Forum: PSU (power supplies)
Topic: Arcing in Mega STe PSU
Replies: 27
Views: 6926

Re: Arcing in Mega STe PSU

those thin overhead transparency/laser printer sheets are good enough (this is what you're referring to when you talk about Polyester OHP, right?) Yep, exactly. Just make sure, they are really polyester and 0.13mm or thicker. I tried to find out but can't find the specifications. The exact one I ha...
by Pacman
Thu Nov 02, 2017 9:43 pm
Forum: PSU (power supplies)
Topic: Arcing in Mega STe PSU
Replies: 27
Views: 6926

Re: Arcing in Mega STe PSU

I'm sold! I couldn't find any shops selling sheet bakelite (oddly enough I came across a local companies producing electrical insulation materials, among them bakelite) so if you believe those thin overhead transparency/laser printer sheets are good enough (this is what you're referring to when you ...

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