Search found 200 matches

by mikro
Mon May 18, 2020 7:09 am
Forum: ATARI FOR SALE & WANTED
Topic: FOR SALE: Repairable Mega STE motherboard
Replies: 7
Views: 1578

Re: FOR SALE: Repairable Mega STE motherboard

Our postal web isn't exactly super helpful but from what I could read it should be about 25 EUR.
by mikro
Sun May 17, 2020 8:59 pm
Forum: ATARI FOR SALE & WANTED
Topic: FOR SALE: Repairable Mega STE motherboard
Replies: 7
Views: 1578

FOR SALE: Repairable Mega STE motherboard

Hi guys, would be someone interested? It's my oldest MegaSTE, honestly I don't remember what happened to it, just one day around 2000 I'd put it into box and never opened again. It doesn't boot (just white screen) but it does boot into diagnostic cartridge -- keyboard works, display works, ROM reads...
by mikro
Thu May 14, 2020 7:18 am
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 68
Views: 15671

Re: How to: recapping the Mega STe power supply

OK, now my curiosity got sparkled again, this is really puzzling. Maybe mine is A1, too.
by mikro
Wed May 13, 2020 6:42 pm
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 68
Views: 15671

Re: How to: recapping the Mega STe power supply

I have to correct my previous statement, too. My situation is: First MegaSTE: C302074-001 (on lid) S/N S10201717A3 (on lid) REV A1 (on PCB) 5 screws, nothing insulated nothing to cut PC111 Second MegaSTE: C301379-001 (on lid) S/N M04700353A2 (on lid) REV A1 (on PCB) 5 screws, nothing insulated nothi...
by mikro
Wed May 13, 2020 12:41 pm
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 68
Views: 15671

Re: How to: recapping the Mega STe power supply

One is a REV-A1 which has the cut track and the centre post is isolated with cloth tape. This one the opto isolator is a CNY17-3Z and it is from an Atari TT REV H. The other a REV-02 which does not have the cut track and the centre post is not isolated. This one has the PC111 opto isolator and is f...
by mikro
Wed May 13, 2020 12:38 pm
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 68
Views: 15671

Re: How to: recapping the Mega STe power supply

Pacman wrote:
Wed May 13, 2020 10:03 am
my board has neither a -001 nor -002 designation but "Rev A1", specifically this is what it says on the PCB:
FYI, "-001" or "-002" is written on the metal case, not PCB. It's a paper sticker.
by mikro
Tue May 12, 2020 5:14 pm
Forum: PSU (power supplies)
Topic: Atari TT's LM7905CT getting too hot
Replies: 22
Views: 1152

Re: Atari TT's LM7905CT getting too hot

mikro wrote:
Mon May 11, 2020 8:24 pm
I'll report when I will have it all up and running.
Reporting: everything put together, has been running for hours now.

Thanks everyone for hints and advice!
by mikro
Tue May 12, 2020 12:16 pm
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 68
Views: 15671

Re: How to: recapping the Mega STe power supply

Pacman: yes. It is explained in the quoted text in the first post of yours. :) The screw must be removed and the hole insulated.
by mikro
Tue May 12, 2020 6:54 am
Forum: PSU (power supplies)
Topic: How to: recapping the Mega STe power supply
Replies: 68
Views: 15671

Re: How to: recapping the Mega STe power supply

See my previous post - Exxos was so kind to edit the picture to correct C14 but you can still add the mention about the central screw. Your picture (and I assume the physical PSU, too) still has it, it shouldn't be there.
by mikro
Mon May 11, 2020 8:24 pm
Forum: PSU (power supplies)
Topic: Atari TT's LM7905CT getting too hot
Replies: 22
Views: 1152

Re: Atari TT's LM7905CT getting too hot

czietz , I bow to your analytical skills and knowledge. Again and again. :) Anyway, there has been an interesting development. My "analysis" wasn't actually that different, I saw two pins going to the same place on the PCB so I was thinking "OK, whatever is coming out of those two pins, it must be ...

Go to advanced search