Search found 26 matches

by damanloox
Sun Mar 08, 2020 6:12 pm
Forum: HARDWARE DISCUSSIONS
Topic: ST and STFM keycaps
Replies: 3
Views: 1447

ST and STFM keycaps

Does anybody know if STFM keycaps will fit 520ST (not F/FM) keyboard? It's pretty much impossibly to get UK/US keyboard for these original non-floppy machines and I can't stand German keyboard layout (and STFM keyboards are much easier to acquire)
by damanloox
Sat Mar 07, 2020 7:52 pm
Forum: ATARI FOR SALE & WANTED
Topic: [WANTED] 520 ST
Replies: 0
Views: 1859

[WANTED] 520 ST

Looking for clean 520ST or 520 ST+
Don't care if it works or not - case and keyboard must be in v. good condition (and not modified)...
by damanloox
Sat Mar 02, 2019 2:14 pm
Forum: HARDWARE DISCUSSIONS
Topic: ST RAM upgrade
Replies: 3
Views: 800

ST RAM upgrade

Can anybody tell me the best/easiest/best looking ;) RAM upgrade for ST (not F)? 2+ MB if possible
by damanloox
Wed Nov 14, 2018 5:21 pm
Forum: ATARI FOR SALE & WANTED
Topic: FOR SALE STF/E KEYBOARDS (UK)
Replies: 60
Views: 13272

Re: FOR SALE STF/E KEYBOARDS (UK)

Ok I'll take them both... I sent you a pm
by damanloox
Wed Nov 14, 2018 4:36 pm
Forum: ATARI FOR SALE & WANTED
Topic: FOR SALE STF/E KEYBOARDS (UK)
Replies: 60
Views: 13272

Re: FOR SALE STF/E KEYBOARDS (UK)

is 4 & 5 still available?
by damanloox
Wed May 02, 2018 8:43 pm
Forum: PSU (power supplies)
Topic: TT/Mega STE power supply headaches
Replies: 44
Views: 7316

Re: TT/Mega STE power supply headaches

It took a while but here's a little report... First of all - it's fixed! There was definitely something wrong with the pcb around Q2 - no matter what I did there was 0.6v at the base of Q2. Even when I desoldered the transistor - there was still 0.6v at the pad (which was not connected to anything!)...
by damanloox
Tue Apr 24, 2018 7:44 pm
Forum: PSU (power supplies)
Topic: TT/Mega STE power supply headaches
Replies: 44
Views: 7316

Re: TT/Mega STE power supply headaches

The meter seems to be ok - it doesn't show any voltage (maybe a few mV) a few mm from that spot...). I thought it might be some sort of transparent residue that is conducting but I cleaned the pad area and checked multiple times - nothing. The track is maybe 1cm at most and again - nothing that coul...
by damanloox
Tue Apr 24, 2018 7:16 pm
Forum: PSU (power supplies)
Topic: TT/Mega STE power supply headaches
Replies: 44
Views: 7316

Re: TT/Mega STE power supply headaches

when I say 5v I mean 5.11 exactly and 12v is about 11.8v. -5v line is -5.2v and -12 is -12.1V when the base is not connected to the pcb it reads 0v (around 100mV, hard to say exactly) and there/s 0.6v on the pad (Zener diode is desoldered so the pad just a piece of copper on the pcb disconnected fro...
by damanloox
Tue Apr 24, 2018 6:55 pm
Forum: PSU (power supplies)
Topic: TT/Mega STE power supply headaches
Replies: 44
Views: 7316

Re: TT/Mega STE power supply headaches

I'll try that (I don't understand the point though.;)) What worries me is that there's a voltage (0.6v precisely) at some random point of the PCB that's not connected to anything... And apparently that voltage is turning the transistor on... If base is connected to that point of the PCB the transist...
by damanloox
Tue Apr 24, 2018 5:54 pm
Forum: PSU (power supplies)
Topic: TT/Mega STE power supply headaches
Replies: 44
Views: 7316

Re: TT/Mega STE power supply headaches

ok... here's the surprise. The base of Q2 is _definitely_ disconnected from the rest of the circuit (after multiple desoldering/soldering operations the track has lifted - that's not a big deal as it's only connection is ZD3 so can be fixed easily). Anyway - base disconnected and 0.6v present.. In a...

Go to advanced search